xref: /freebsd/sys/contrib/dev/iwlwifi/mvm/mac80211.c (revision 924226fba12cc9a228c73b956e1b7fa24c60b055)
1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3  * Copyright (C) 2012-2014, 2018-2022 Intel Corporation
4  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5  * Copyright (C) 2016-2017 Intel Deutschland GmbH
6  */
7 #include <linux/kernel.h>
8 #include <linux/slab.h>
9 #include <linux/skbuff.h>
10 #include <linux/netdevice.h>
11 #include <linux/etherdevice.h>
12 #include <linux/ip.h>
13 #include <linux/if_arp.h>
14 #include <linux/time.h>
15 #if defined(__FreeBSD__)
16 #include <linux/math64.h>
17 #endif
18 #include <net/mac80211.h>
19 #include <net/ieee80211_radiotap.h>
20 #include <net/tcp.h>
21 #if defined(__FreeBSD__)
22 #include <linux/udp.h>
23 #endif
24 
25 #include "iwl-drv.h"
26 #include "iwl-op-mode.h"
27 #include "iwl-io.h"
28 #include "mvm.h"
29 #include "sta.h"
30 #include "time-event.h"
31 #include "iwl-eeprom-parse.h"
32 #include "iwl-phy-db.h"
33 #ifdef CONFIG_NL80211_TESTMODE
34 #include "testmode.h"
35 #endif
36 #include "fw/error-dump.h"
37 #include "iwl-prph.h"
38 #include "iwl-nvm-parse.h"
39 
40 static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
41 	{
42 		.max = 1,
43 		.types = BIT(NL80211_IFTYPE_STATION),
44 	},
45 	{
46 		.max = 1,
47 		.types = BIT(NL80211_IFTYPE_AP) |
48 			BIT(NL80211_IFTYPE_P2P_CLIENT) |
49 			BIT(NL80211_IFTYPE_P2P_GO),
50 	},
51 	{
52 		.max = 1,
53 		.types = BIT(NL80211_IFTYPE_P2P_DEVICE),
54 	},
55 };
56 
57 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
58 	{
59 		.num_different_channels = 2,
60 		.max_interfaces = 3,
61 		.limits = iwl_mvm_limits,
62 		.n_limits = ARRAY_SIZE(iwl_mvm_limits),
63 	},
64 };
65 
66 static const struct cfg80211_pmsr_capabilities iwl_mvm_pmsr_capa = {
67 	.max_peers = IWL_MVM_TOF_MAX_APS,
68 	.report_ap_tsf = 1,
69 	.randomize_mac_addr = 1,
70 
71 	.ftm = {
72 		.supported = 1,
73 		.asap = 1,
74 		.non_asap = 1,
75 		.request_lci = 1,
76 		.request_civicloc = 1,
77 		.trigger_based = 1,
78 		.non_trigger_based = 1,
79 		.max_bursts_exponent = -1, /* all supported */
80 		.max_ftms_per_burst = 0, /* no limits */
81 		.bandwidths = BIT(NL80211_CHAN_WIDTH_20_NOHT) |
82 			      BIT(NL80211_CHAN_WIDTH_20) |
83 			      BIT(NL80211_CHAN_WIDTH_40) |
84 			      BIT(NL80211_CHAN_WIDTH_80) |
85 			      BIT(NL80211_CHAN_WIDTH_160),
86 		.preambles = BIT(NL80211_PREAMBLE_LEGACY) |
87 			     BIT(NL80211_PREAMBLE_HT) |
88 			     BIT(NL80211_PREAMBLE_VHT) |
89 			     BIT(NL80211_PREAMBLE_HE),
90 	},
91 };
92 
93 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
94 				 enum set_key_cmd cmd,
95 				 struct ieee80211_vif *vif,
96 				 struct ieee80211_sta *sta,
97 				 struct ieee80211_key_conf *key);
98 
99 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm *mvm)
100 {
101 	int i;
102 
103 	memset(mvm->phy_ctxts, 0, sizeof(mvm->phy_ctxts));
104 	for (i = 0; i < NUM_PHY_CTX; i++) {
105 		mvm->phy_ctxts[i].id = i;
106 		mvm->phy_ctxts[i].ref = 0;
107 	}
108 }
109 
110 struct ieee80211_regdomain *iwl_mvm_get_regdomain(struct wiphy *wiphy,
111 						  const char *alpha2,
112 						  enum iwl_mcc_source src_id,
113 						  bool *changed)
114 {
115 	struct ieee80211_regdomain *regd = NULL;
116 	struct ieee80211_hw *hw = wiphy_to_ieee80211_hw(wiphy);
117 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
118 	struct iwl_mcc_update_resp *resp;
119 	u8 resp_ver;
120 
121 	IWL_DEBUG_LAR(mvm, "Getting regdomain data for %s from FW\n", alpha2);
122 
123 	lockdep_assert_held(&mvm->mutex);
124 
125 	resp = iwl_mvm_update_mcc(mvm, alpha2, src_id);
126 	if (IS_ERR_OR_NULL(resp)) {
127 		IWL_DEBUG_LAR(mvm, "Could not get update from FW %d\n",
128 			      PTR_ERR_OR_ZERO(resp));
129 		resp = NULL;
130 		goto out;
131 	}
132 
133 	if (changed) {
134 		u32 status = le32_to_cpu(resp->status);
135 
136 		*changed = (status == MCC_RESP_NEW_CHAN_PROFILE ||
137 			    status == MCC_RESP_ILLEGAL);
138 	}
139 	resp_ver = iwl_fw_lookup_notif_ver(mvm->fw, IWL_ALWAYS_LONG_GROUP,
140 					   MCC_UPDATE_CMD, 0);
141 	IWL_DEBUG_LAR(mvm, "MCC update response version: %d\n", resp_ver);
142 
143 	regd = iwl_parse_nvm_mcc_info(mvm->trans->dev, mvm->cfg,
144 				      __le32_to_cpu(resp->n_channels),
145 				      resp->channels,
146 				      __le16_to_cpu(resp->mcc),
147 				      __le16_to_cpu(resp->geo_info),
148 				      __le16_to_cpu(resp->cap), resp_ver);
149 	/* Store the return source id */
150 	src_id = resp->source_id;
151 	if (IS_ERR_OR_NULL(regd)) {
152 		IWL_DEBUG_LAR(mvm, "Could not get parse update from FW %d\n",
153 			      PTR_ERR_OR_ZERO(regd));
154 		goto out;
155 	}
156 
157 	IWL_DEBUG_LAR(mvm, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
158 		      regd->alpha2, regd->alpha2[0], regd->alpha2[1], src_id);
159 	mvm->lar_regdom_set = true;
160 	mvm->mcc_src = src_id;
161 
162 	iwl_mei_set_country_code(__le16_to_cpu(resp->mcc));
163 
164 out:
165 	kfree(resp);
166 	return regd;
167 }
168 
169 void iwl_mvm_update_changed_regdom(struct iwl_mvm *mvm)
170 {
171 	bool changed;
172 	struct ieee80211_regdomain *regd;
173 
174 	if (!iwl_mvm_is_lar_supported(mvm))
175 		return;
176 
177 	regd = iwl_mvm_get_current_regdomain(mvm, &changed);
178 	if (!IS_ERR_OR_NULL(regd)) {
179 		/* only update the regulatory core if changed */
180 		if (changed)
181 			regulatory_set_wiphy_regd(mvm->hw->wiphy, regd);
182 
183 		kfree(regd);
184 	}
185 }
186 
187 struct ieee80211_regdomain *iwl_mvm_get_current_regdomain(struct iwl_mvm *mvm,
188 							  bool *changed)
189 {
190 	return iwl_mvm_get_regdomain(mvm->hw->wiphy, "ZZ",
191 				     iwl_mvm_is_wifi_mcc_supported(mvm) ?
192 				     MCC_SOURCE_GET_CURRENT :
193 				     MCC_SOURCE_OLD_FW, changed);
194 }
195 
196 int iwl_mvm_init_fw_regd(struct iwl_mvm *mvm)
197 {
198 	enum iwl_mcc_source used_src;
199 	struct ieee80211_regdomain *regd;
200 	int ret;
201 	bool changed;
202 	const struct ieee80211_regdomain *r =
203 			wiphy_dereference(mvm->hw->wiphy, mvm->hw->wiphy->regd);
204 
205 	if (!r)
206 		return -ENOENT;
207 
208 	/* save the last source in case we overwrite it below */
209 	used_src = mvm->mcc_src;
210 	if (iwl_mvm_is_wifi_mcc_supported(mvm)) {
211 		/* Notify the firmware we support wifi location updates */
212 		regd = iwl_mvm_get_current_regdomain(mvm, NULL);
213 		if (!IS_ERR_OR_NULL(regd))
214 			kfree(regd);
215 	}
216 
217 	/* Now set our last stored MCC and source */
218 	regd = iwl_mvm_get_regdomain(mvm->hw->wiphy, r->alpha2, used_src,
219 				     &changed);
220 	if (IS_ERR_OR_NULL(regd))
221 		return -EIO;
222 
223 	/* update cfg80211 if the regdomain was changed */
224 	if (changed)
225 		ret = regulatory_set_wiphy_regd_sync(mvm->hw->wiphy, regd);
226 	else
227 		ret = 0;
228 
229 	kfree(regd);
230 	return ret;
231 }
232 
233 static const u8 he_if_types_ext_capa_sta[] = {
234 	 [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
235 	 [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT,
236 	 [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF,
237 };
238 
239 static const struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = {
240 	{
241 		.iftype = NL80211_IFTYPE_STATION,
242 		.extended_capabilities = he_if_types_ext_capa_sta,
243 		.extended_capabilities_mask = he_if_types_ext_capa_sta,
244 		.extended_capabilities_len = sizeof(he_if_types_ext_capa_sta),
245 	},
246 };
247 
248 static int
249 iwl_mvm_op_get_antenna(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant)
250 {
251 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
252 	*tx_ant = iwl_mvm_get_valid_tx_ant(mvm);
253 	*rx_ant = iwl_mvm_get_valid_rx_ant(mvm);
254 	return 0;
255 }
256 
257 int iwl_mvm_mac_setup_register(struct iwl_mvm *mvm)
258 {
259 	struct ieee80211_hw *hw = mvm->hw;
260 	int num_mac, ret, i;
261 	static const u32 mvm_ciphers[] = {
262 		WLAN_CIPHER_SUITE_WEP40,
263 		WLAN_CIPHER_SUITE_WEP104,
264 		WLAN_CIPHER_SUITE_TKIP,
265 		WLAN_CIPHER_SUITE_CCMP,
266 	};
267 #ifdef CONFIG_PM_SLEEP
268 	bool unified = fw_has_capa(&mvm->fw->ucode_capa,
269 				   IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
270 #endif
271 
272 	/* Tell mac80211 our characteristics */
273 	ieee80211_hw_set(hw, SIGNAL_DBM);
274 	ieee80211_hw_set(hw, SPECTRUM_MGMT);
275 	ieee80211_hw_set(hw, REPORTS_TX_ACK_STATUS);
276 	ieee80211_hw_set(hw, WANT_MONITOR_VIF);
277 	ieee80211_hw_set(hw, SUPPORTS_PS);
278 	ieee80211_hw_set(hw, SUPPORTS_DYNAMIC_PS);
279 	ieee80211_hw_set(hw, AMPDU_AGGREGATION);
280 	ieee80211_hw_set(hw, TIMING_BEACON_ONLY);
281 	ieee80211_hw_set(hw, CONNECTION_MONITOR);
282 	ieee80211_hw_set(hw, CHANCTX_STA_CSA);
283 	ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
284 	ieee80211_hw_set(hw, SUPPORTS_CLONED_SKBS);
285 	ieee80211_hw_set(hw, SUPPORTS_AMSDU_IN_AMPDU);
286 	ieee80211_hw_set(hw, NEEDS_UNIQUE_STA_ADDR);
287 	ieee80211_hw_set(hw, DEAUTH_NEED_MGD_TX_PREP);
288 	ieee80211_hw_set(hw, SUPPORTS_VHT_EXT_NSS_BW);
289 	ieee80211_hw_set(hw, BUFF_MMPDU_TXQ);
290 	ieee80211_hw_set(hw, STA_MMPDU_TXQ);
291 	/*
292 	 * On older devices, enabling TX A-MSDU occasionally leads to
293 	 * something getting messed up, the command read from the FIFO
294 	 * gets out of sync and isn't a TX command, so that we have an
295 	 * assert EDC.
296 	 *
297 	 * It's not clear where the bug is, but since we didn't used to
298 	 * support A-MSDU until moving the mac80211 iTXQs, just leave it
299 	 * for older devices. We also don't see this issue on any newer
300 	 * devices.
301 	 */
302 	if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000)
303 		ieee80211_hw_set(hw, TX_AMSDU);
304 	ieee80211_hw_set(hw, TX_FRAG_LIST);
305 
306 	if (iwl_mvm_has_tlc_offload(mvm)) {
307 		ieee80211_hw_set(hw, TX_AMPDU_SETUP_IN_HW);
308 		ieee80211_hw_set(hw, HAS_RATE_CONTROL);
309 	}
310 
311 	if (iwl_mvm_has_new_rx_api(mvm))
312 		ieee80211_hw_set(hw, SUPPORTS_REORDERING_BUFFER);
313 
314 	if (fw_has_capa(&mvm->fw->ucode_capa,
315 			IWL_UCODE_TLV_CAPA_STA_PM_NOTIF)) {
316 		ieee80211_hw_set(hw, AP_LINK_PS);
317 	} else if (WARN_ON(iwl_mvm_has_new_tx_api(mvm))) {
318 		/*
319 		 * we absolutely need this for the new TX API since that comes
320 		 * with many more queues than the current code can deal with
321 		 * for station powersave
322 		 */
323 		return -EINVAL;
324 	}
325 
326 	if (mvm->trans->num_rx_queues > 1)
327 		ieee80211_hw_set(hw, USES_RSS);
328 
329 	if (mvm->trans->max_skb_frags)
330 		hw->netdev_features = NETIF_F_HIGHDMA | NETIF_F_SG;
331 
332 	hw->queues = IEEE80211_NUM_ACS;
333 	hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
334 	hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
335 				    IEEE80211_RADIOTAP_MCS_HAVE_STBC;
336 	hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
337 		IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
338 
339 	hw->radiotap_timestamp.units_pos =
340 		IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US |
341 		IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ;
342 	/* this is the case for CCK frames, it's better (only 8) for OFDM */
343 	hw->radiotap_timestamp.accuracy = 22;
344 
345 	if (!iwl_mvm_has_tlc_offload(mvm))
346 		hw->rate_control_algorithm = RS_NAME;
347 
348 	hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
349 	hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
350 	hw->max_tx_fragments = mvm->trans->max_skb_frags;
351 
352 	BUILD_BUG_ON(ARRAY_SIZE(mvm->ciphers) < ARRAY_SIZE(mvm_ciphers) + 6);
353 	memcpy(mvm->ciphers, mvm_ciphers, sizeof(mvm_ciphers));
354 	hw->wiphy->n_cipher_suites = ARRAY_SIZE(mvm_ciphers);
355 	hw->wiphy->cipher_suites = mvm->ciphers;
356 
357 	if (iwl_mvm_has_new_rx_api(mvm)) {
358 		mvm->ciphers[hw->wiphy->n_cipher_suites] =
359 			WLAN_CIPHER_SUITE_GCMP;
360 		hw->wiphy->n_cipher_suites++;
361 		mvm->ciphers[hw->wiphy->n_cipher_suites] =
362 			WLAN_CIPHER_SUITE_GCMP_256;
363 		hw->wiphy->n_cipher_suites++;
364 	}
365 
366 	if (iwlwifi_mod_params.swcrypto)
367 		IWL_ERR(mvm,
368 			"iwlmvm doesn't allow to disable HW crypto, check swcrypto module parameter\n");
369 	if (!iwlwifi_mod_params.bt_coex_active)
370 		IWL_ERR(mvm,
371 			"iwlmvm doesn't allow to disable BT Coex, check bt_coex_active module parameter\n");
372 
373 	ieee80211_hw_set(hw, MFP_CAPABLE);
374 	mvm->ciphers[hw->wiphy->n_cipher_suites] = WLAN_CIPHER_SUITE_AES_CMAC;
375 	hw->wiphy->n_cipher_suites++;
376 	if (iwl_mvm_has_new_rx_api(mvm)) {
377 		mvm->ciphers[hw->wiphy->n_cipher_suites] =
378 			WLAN_CIPHER_SUITE_BIP_GMAC_128;
379 		hw->wiphy->n_cipher_suites++;
380 		mvm->ciphers[hw->wiphy->n_cipher_suites] =
381 			WLAN_CIPHER_SUITE_BIP_GMAC_256;
382 		hw->wiphy->n_cipher_suites++;
383 	}
384 
385 	if (fw_has_capa(&mvm->fw->ucode_capa,
386 			IWL_UCODE_TLV_CAPA_FTM_CALIBRATED)) {
387 		wiphy_ext_feature_set(hw->wiphy,
388 				      NL80211_EXT_FEATURE_ENABLE_FTM_RESPONDER);
389 		hw->wiphy->pmsr_capa = &iwl_mvm_pmsr_capa;
390 	}
391 
392 	if (fw_has_capa(&mvm->fw->ucode_capa,
393 			IWL_UCODE_TLV_CAPA_BIGTK_SUPPORT))
394 		wiphy_ext_feature_set(hw->wiphy,
395 				      NL80211_EXT_FEATURE_BEACON_PROTECTION_CLIENT);
396 
397 	ieee80211_hw_set(hw, SINGLE_SCAN_ON_ALL_BANDS);
398 	hw->wiphy->features |=
399 		NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
400 		NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
401 		NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
402 
403 	hw->sta_data_size = sizeof(struct iwl_mvm_sta);
404 	hw->vif_data_size = sizeof(struct iwl_mvm_vif);
405 	hw->chanctx_data_size = sizeof(u16);
406 	hw->txq_data_size = sizeof(struct iwl_mvm_txq);
407 
408 	hw->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) |
409 		BIT(NL80211_IFTYPE_P2P_CLIENT) |
410 		BIT(NL80211_IFTYPE_AP) |
411 		BIT(NL80211_IFTYPE_P2P_GO) |
412 		BIT(NL80211_IFTYPE_P2P_DEVICE) |
413 		BIT(NL80211_IFTYPE_ADHOC);
414 
415 	hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
416 	wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_VHT_IBSS);
417 
418 	/* The new Tx API does not allow to pass the key or keyid of a MPDU to
419 	 * the hw, preventing us to control which key(id) to use per MPDU.
420 	 * Till that's fixed we can't use Extended Key ID for the newer cards.
421 	 */
422 	if (!iwl_mvm_has_new_tx_api(mvm))
423 		wiphy_ext_feature_set(hw->wiphy,
424 				      NL80211_EXT_FEATURE_EXT_KEY_ID);
425 	hw->wiphy->features |= NL80211_FEATURE_HT_IBSS;
426 
427 	hw->wiphy->regulatory_flags |= REGULATORY_ENABLE_RELAX_NO_IR;
428 	if (iwl_mvm_is_lar_supported(mvm))
429 		hw->wiphy->regulatory_flags |= REGULATORY_WIPHY_SELF_MANAGED;
430 	else
431 		hw->wiphy->regulatory_flags |= REGULATORY_CUSTOM_REG |
432 					       REGULATORY_DISABLE_BEACON_HINTS;
433 
434 	hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
435 	hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
436 	hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ;
437 
438 	hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
439 	hw->wiphy->n_iface_combinations =
440 		ARRAY_SIZE(iwl_mvm_iface_combinations);
441 
442 	hw->wiphy->max_remain_on_channel_duration = 10000;
443 	hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
444 
445 	/* Extract MAC address */
446 	memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
447 	hw->wiphy->addresses = mvm->addresses;
448 	hw->wiphy->n_addresses = 1;
449 
450 	/* Extract additional MAC addresses if available */
451 	num_mac = (mvm->nvm_data->n_hw_addrs > 1) ?
452 		min(IWL_MVM_MAX_ADDRESSES, mvm->nvm_data->n_hw_addrs) : 1;
453 
454 	for (i = 1; i < num_mac; i++) {
455 		memcpy(mvm->addresses[i].addr, mvm->addresses[i-1].addr,
456 		       ETH_ALEN);
457 		mvm->addresses[i].addr[5]++;
458 		hw->wiphy->n_addresses++;
459 	}
460 
461 	iwl_mvm_reset_phy_ctxts(mvm);
462 
463 	hw->wiphy->max_scan_ie_len = iwl_mvm_max_scan_ie_len(mvm);
464 
465 	hw->wiphy->max_scan_ssids = PROBE_OPTION_MAX;
466 
467 	BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK & IWL_MVM_SCAN_MASK);
468 	BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK) ||
469 		     IWL_MVM_MAX_LMAC_SCANS > HWEIGHT32(IWL_MVM_SCAN_MASK));
470 
471 	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN))
472 		mvm->max_scans = IWL_MVM_MAX_UMAC_SCANS;
473 	else
474 		mvm->max_scans = IWL_MVM_MAX_LMAC_SCANS;
475 
476 	if (mvm->nvm_data->bands[NL80211_BAND_2GHZ].n_channels)
477 		hw->wiphy->bands[NL80211_BAND_2GHZ] =
478 			&mvm->nvm_data->bands[NL80211_BAND_2GHZ];
479 	if (mvm->nvm_data->bands[NL80211_BAND_5GHZ].n_channels) {
480 		hw->wiphy->bands[NL80211_BAND_5GHZ] =
481 			&mvm->nvm_data->bands[NL80211_BAND_5GHZ];
482 
483 		if (fw_has_capa(&mvm->fw->ucode_capa,
484 				IWL_UCODE_TLV_CAPA_BEAMFORMER) &&
485 		    fw_has_api(&mvm->fw->ucode_capa,
486 			       IWL_UCODE_TLV_API_LQ_SS_PARAMS))
487 			hw->wiphy->bands[NL80211_BAND_5GHZ]->vht_cap.cap |=
488 				IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE;
489 	}
490 	if (fw_has_capa(&mvm->fw->ucode_capa,
491 			IWL_UCODE_TLV_CAPA_PSC_CHAN_SUPPORT) &&
492 	    mvm->nvm_data->bands[NL80211_BAND_6GHZ].n_channels)
493 		hw->wiphy->bands[NL80211_BAND_6GHZ] =
494 			&mvm->nvm_data->bands[NL80211_BAND_6GHZ];
495 
496 	hw->wiphy->hw_version = mvm->trans->hw_id;
497 
498 	if (iwlmvm_mod_params.power_scheme != IWL_POWER_SCHEME_CAM)
499 		hw->wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT;
500 	else
501 		hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
502 
503 	hw->wiphy->max_sched_scan_reqs = 1;
504 	hw->wiphy->max_sched_scan_ssids = PROBE_OPTION_MAX;
505 	hw->wiphy->max_match_sets = iwl_umac_scan_get_max_profiles(mvm->fw);
506 	/* we create the 802.11 header and zero length SSID IE. */
507 	hw->wiphy->max_sched_scan_ie_len =
508 		SCAN_OFFLOAD_PROBE_REQ_SIZE - 24 - 2;
509 	hw->wiphy->max_sched_scan_plans = IWL_MAX_SCHED_SCAN_PLANS;
510 	hw->wiphy->max_sched_scan_plan_interval = U16_MAX;
511 
512 	/*
513 	 * the firmware uses u8 for num of iterations, but 0xff is saved for
514 	 * infinite loop, so the maximum number of iterations is actually 254.
515 	 */
516 	hw->wiphy->max_sched_scan_plan_iterations = 254;
517 
518 	hw->wiphy->features |= NL80211_FEATURE_P2P_GO_CTWIN |
519 			       NL80211_FEATURE_LOW_PRIORITY_SCAN |
520 			       NL80211_FEATURE_P2P_GO_OPPPS |
521 			       NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE |
522 			       NL80211_FEATURE_DYNAMIC_SMPS |
523 			       NL80211_FEATURE_STATIC_SMPS |
524 			       NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
525 
526 	if (fw_has_capa(&mvm->fw->ucode_capa,
527 			IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT))
528 		hw->wiphy->features |= NL80211_FEATURE_TX_POWER_INSERTION;
529 	if (fw_has_capa(&mvm->fw->ucode_capa,
530 			IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT))
531 		hw->wiphy->features |= NL80211_FEATURE_QUIET;
532 
533 	if (fw_has_capa(&mvm->fw->ucode_capa,
534 			IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT))
535 		hw->wiphy->features |=
536 			NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES;
537 
538 	if (fw_has_capa(&mvm->fw->ucode_capa,
539 			IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT))
540 		hw->wiphy->features |= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES;
541 
542 	if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_KEK_KCK_MATERIAL,
543 				  IWL_FW_CMD_VER_UNKNOWN) == 3)
544 		hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_EXT_KEK_KCK;
545 
546 	if (fw_has_api(&mvm->fw->ucode_capa,
547 		       IWL_UCODE_TLV_API_SCAN_TSF_REPORT)) {
548 		wiphy_ext_feature_set(hw->wiphy,
549 				      NL80211_EXT_FEATURE_SCAN_START_TIME);
550 		wiphy_ext_feature_set(hw->wiphy,
551 				      NL80211_EXT_FEATURE_BSS_PARENT_TSF);
552 	}
553 
554 	if (iwl_mvm_is_oce_supported(mvm)) {
555 		u8 scan_ver = iwl_fw_lookup_cmd_ver(mvm->fw, SCAN_REQ_UMAC, 0);
556 
557 		wiphy_ext_feature_set(hw->wiphy,
558 			NL80211_EXT_FEATURE_ACCEPT_BCAST_PROBE_RESP);
559 		wiphy_ext_feature_set(hw->wiphy,
560 			NL80211_EXT_FEATURE_FILS_MAX_CHANNEL_TIME);
561 		wiphy_ext_feature_set(hw->wiphy,
562 			NL80211_EXT_FEATURE_OCE_PROBE_REQ_HIGH_TX_RATE);
563 
564 		/* Old firmware also supports probe deferral and suppression */
565 		if (scan_ver < 15)
566 			wiphy_ext_feature_set(hw->wiphy,
567 					      NL80211_EXT_FEATURE_OCE_PROBE_REQ_DEFERRAL_SUPPRESSION);
568 	}
569 
570 	if (mvm->nvm_data->sku_cap_11ax_enable &&
571 	    !iwlwifi_mod_params.disable_11ax) {
572 		hw->wiphy->iftype_ext_capab = he_iftypes_ext_capa;
573 		hw->wiphy->num_iftype_ext_capab =
574 			ARRAY_SIZE(he_iftypes_ext_capa);
575 
576 		ieee80211_hw_set(hw, SUPPORTS_MULTI_BSSID);
577 		ieee80211_hw_set(hw, SUPPORTS_ONLY_HE_MULTI_BSSID);
578 	}
579 
580 	mvm->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
581 
582 #ifdef CONFIG_PM_SLEEP
583 	if ((unified || mvm->fw->img[IWL_UCODE_WOWLAN].num_sec) &&
584 	    mvm->trans->ops->d3_suspend &&
585 	    mvm->trans->ops->d3_resume &&
586 	    device_can_wakeup(mvm->trans->dev)) {
587 		mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
588 				     WIPHY_WOWLAN_DISCONNECT |
589 				     WIPHY_WOWLAN_EAP_IDENTITY_REQ |
590 				     WIPHY_WOWLAN_RFKILL_RELEASE |
591 				     WIPHY_WOWLAN_NET_DETECT;
592 		mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
593 				     WIPHY_WOWLAN_GTK_REKEY_FAILURE |
594 				     WIPHY_WOWLAN_4WAY_HANDSHAKE;
595 
596 		mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
597 		mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
598 		mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
599 		mvm->wowlan.max_nd_match_sets =
600 			iwl_umac_scan_get_max_profiles(mvm->fw);
601 		hw->wiphy->wowlan = &mvm->wowlan;
602 	}
603 #endif
604 
605 	ret = iwl_mvm_leds_init(mvm);
606 	if (ret)
607 		return ret;
608 
609 	if (fw_has_capa(&mvm->fw->ucode_capa,
610 			IWL_UCODE_TLV_CAPA_TDLS_SUPPORT)) {
611 		IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
612 		hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
613 		ieee80211_hw_set(hw, TDLS_WIDER_BW);
614 	}
615 
616 	if (fw_has_capa(&mvm->fw->ucode_capa,
617 			IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH)) {
618 		IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
619 		hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
620 	}
621 
622 	hw->netdev_features |= mvm->cfg->features;
623 	if (!iwl_mvm_is_csum_supported(mvm))
624 		hw->netdev_features &= ~IWL_CSUM_NETIF_FLAGS_MASK;
625 
626 	if (mvm->cfg->vht_mu_mimo_supported)
627 		wiphy_ext_feature_set(hw->wiphy,
628 				      NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER);
629 
630 	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_PROTECTED_TWT))
631 		wiphy_ext_feature_set(hw->wiphy,
632 				      NL80211_EXT_FEATURE_PROTECTED_TWT);
633 
634 	iwl_mvm_vendor_cmds_register(mvm);
635 
636 	hw->wiphy->available_antennas_tx = iwl_mvm_get_valid_tx_ant(mvm);
637 	hw->wiphy->available_antennas_rx = iwl_mvm_get_valid_rx_ant(mvm);
638 
639 	ret = ieee80211_register_hw(mvm->hw);
640 	if (ret) {
641 		iwl_mvm_leds_exit(mvm);
642 	}
643 
644 	return ret;
645 }
646 
647 static void iwl_mvm_tx_skb(struct iwl_mvm *mvm, struct sk_buff *skb,
648 			   struct ieee80211_sta *sta)
649 {
650 	if (likely(sta)) {
651 		if (likely(iwl_mvm_tx_skb_sta(mvm, skb, sta) == 0))
652 			return;
653 	} else {
654 		if (likely(iwl_mvm_tx_skb_non_sta(mvm, skb) == 0))
655 			return;
656 	}
657 
658 	ieee80211_free_txskb(mvm->hw, skb);
659 }
660 
661 static void iwl_mvm_mac_tx(struct ieee80211_hw *hw,
662 			   struct ieee80211_tx_control *control,
663 			   struct sk_buff *skb)
664 {
665 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
666 	struct ieee80211_sta *sta = control->sta;
667 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
668 	struct ieee80211_hdr *hdr = (void *)skb->data;
669 	bool offchannel = IEEE80211_SKB_CB(skb)->flags &
670 		IEEE80211_TX_CTL_TX_OFFCHAN;
671 
672 	if (iwl_mvm_is_radio_killed(mvm)) {
673 		IWL_DEBUG_DROP(mvm, "Dropping - RF/CT KILL\n");
674 		goto drop;
675 	}
676 
677 	if (offchannel &&
678 	    !test_bit(IWL_MVM_STATUS_ROC_RUNNING, &mvm->status) &&
679 	    !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING, &mvm->status))
680 		goto drop;
681 
682 	/*
683 	 * bufferable MMPDUs or MMPDUs on STA interfaces come via TXQs
684 	 * so we treat the others as broadcast
685 	 */
686 	if (ieee80211_is_mgmt(hdr->frame_control))
687 		sta = NULL;
688 
689 	/* If there is no sta, and it's not offchannel - send through AP */
690 	if (!sta && info->control.vif->type == NL80211_IFTYPE_STATION &&
691 	    !offchannel) {
692 		struct iwl_mvm_vif *mvmvif =
693 			iwl_mvm_vif_from_mac80211(info->control.vif);
694 		u8 ap_sta_id = READ_ONCE(mvmvif->ap_sta_id);
695 
696 		if (ap_sta_id < mvm->fw->ucode_capa.num_stations) {
697 			/* mac80211 holds rcu read lock */
698 			sta = rcu_dereference(mvm->fw_id_to_mac_id[ap_sta_id]);
699 			if (IS_ERR_OR_NULL(sta))
700 				goto drop;
701 		}
702 	}
703 
704 	iwl_mvm_tx_skb(mvm, skb, sta);
705 	return;
706  drop:
707 	ieee80211_free_txskb(hw, skb);
708 }
709 
710 void iwl_mvm_mac_itxq_xmit(struct ieee80211_hw *hw, struct ieee80211_txq *txq)
711 {
712 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
713 	struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
714 	struct sk_buff *skb = NULL;
715 
716 	/*
717 	 * No need for threads to be pending here, they can leave the first
718 	 * taker all the work.
719 	 *
720 	 * mvmtxq->tx_request logic:
721 	 *
722 	 * If 0, no one is currently TXing, set to 1 to indicate current thread
723 	 * will now start TX and other threads should quit.
724 	 *
725 	 * If 1, another thread is currently TXing, set to 2 to indicate to
726 	 * that thread that there was another request. Since that request may
727 	 * have raced with the check whether the queue is empty, the TXing
728 	 * thread should check the queue's status one more time before leaving.
729 	 * This check is done in order to not leave any TX hanging in the queue
730 	 * until the next TX invocation (which may not even happen).
731 	 *
732 	 * If 2, another thread is currently TXing, and it will already double
733 	 * check the queue, so do nothing.
734 	 */
735 	if (atomic_fetch_add_unless(&mvmtxq->tx_request, 1, 2))
736 		return;
737 
738 	rcu_read_lock();
739 	do {
740 		while (likely(!mvmtxq->stopped &&
741 			      !test_bit(IWL_MVM_STATUS_IN_D3, &mvm->status))) {
742 			skb = ieee80211_tx_dequeue(hw, txq);
743 
744 			if (!skb) {
745 				if (txq->sta)
746 					IWL_DEBUG_TX(mvm,
747 						     "TXQ of sta %pM tid %d is now empty\n",
748 						     txq->sta->addr,
749 						     txq->tid);
750 				break;
751 			}
752 
753 			iwl_mvm_tx_skb(mvm, skb, txq->sta);
754 		}
755 	} while (atomic_dec_return(&mvmtxq->tx_request));
756 	rcu_read_unlock();
757 }
758 
759 static void iwl_mvm_mac_wake_tx_queue(struct ieee80211_hw *hw,
760 				      struct ieee80211_txq *txq)
761 {
762 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
763 	struct iwl_mvm_txq *mvmtxq = iwl_mvm_txq_from_mac80211(txq);
764 
765 	/*
766 	 * Please note that racing is handled very carefully here:
767 	 * mvmtxq->txq_id is updated during allocation, and mvmtxq->list is
768 	 * deleted afterwards.
769 	 * This means that if:
770 	 * mvmtxq->txq_id != INVALID_QUEUE && list_empty(&mvmtxq->list):
771 	 *	queue is allocated and we can TX.
772 	 * mvmtxq->txq_id != INVALID_QUEUE && !list_empty(&mvmtxq->list):
773 	 *	a race, should defer the frame.
774 	 * mvmtxq->txq_id == INVALID_QUEUE && list_empty(&mvmtxq->list):
775 	 *	need to allocate the queue and defer the frame.
776 	 * mvmtxq->txq_id == INVALID_QUEUE && !list_empty(&mvmtxq->list):
777 	 *	queue is already scheduled for allocation, no need to allocate,
778 	 *	should defer the frame.
779 	 */
780 
781 	/* If the queue is allocated TX and return. */
782 	if (!txq->sta || mvmtxq->txq_id != IWL_MVM_INVALID_QUEUE) {
783 		/*
784 		 * Check that list is empty to avoid a race where txq_id is
785 		 * already updated, but the queue allocation work wasn't
786 		 * finished
787 		 */
788 		if (unlikely(txq->sta && !list_empty(&mvmtxq->list)))
789 			return;
790 
791 		iwl_mvm_mac_itxq_xmit(hw, txq);
792 		return;
793 	}
794 
795 	/* The list is being deleted only after the queue is fully allocated. */
796 	if (!list_empty(&mvmtxq->list))
797 		return;
798 
799 	list_add_tail(&mvmtxq->list, &mvm->add_stream_txqs);
800 	schedule_work(&mvm->add_stream_wk);
801 }
802 
803 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...)		\
804 	do {								\
805 		if (!(le16_to_cpu(_tid_bm) & BIT(_tid)))		\
806 			break;						\
807 		iwl_fw_dbg_collect_trig(&(_mvm)->fwrt, _trig, _fmt);	\
808 	} while (0)
809 
810 static void
811 iwl_mvm_ampdu_check_trigger(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
812 			    struct ieee80211_sta *sta, u16 tid, u16 rx_ba_ssn,
813 			    enum ieee80211_ampdu_mlme_action action)
814 {
815 	struct iwl_fw_dbg_trigger_tlv *trig;
816 	struct iwl_fw_dbg_trigger_ba *ba_trig;
817 
818 	trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
819 				     FW_DBG_TRIGGER_BA);
820 	if (!trig)
821 		return;
822 
823 	ba_trig = (void *)trig->data;
824 
825 	switch (action) {
826 	case IEEE80211_AMPDU_TX_OPERATIONAL: {
827 		struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
828 		struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
829 
830 		CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_start, tid,
831 				 "TX AGG START: MAC %pM tid %d ssn %d\n",
832 				 sta->addr, tid, tid_data->ssn);
833 		break;
834 		}
835 	case IEEE80211_AMPDU_TX_STOP_CONT:
836 		CHECK_BA_TRIGGER(mvm, trig, ba_trig->tx_ba_stop, tid,
837 				 "TX AGG STOP: MAC %pM tid %d\n",
838 				 sta->addr, tid);
839 		break;
840 	case IEEE80211_AMPDU_RX_START:
841 		CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_start, tid,
842 				 "RX AGG START: MAC %pM tid %d ssn %d\n",
843 				 sta->addr, tid, rx_ba_ssn);
844 		break;
845 	case IEEE80211_AMPDU_RX_STOP:
846 		CHECK_BA_TRIGGER(mvm, trig, ba_trig->rx_ba_stop, tid,
847 				 "RX AGG STOP: MAC %pM tid %d\n",
848 				 sta->addr, tid);
849 		break;
850 	default:
851 		break;
852 	}
853 }
854 
855 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw *hw,
856 				    struct ieee80211_vif *vif,
857 				    struct ieee80211_ampdu_params *params)
858 {
859 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
860 	int ret;
861 	struct ieee80211_sta *sta = params->sta;
862 	enum ieee80211_ampdu_mlme_action action = params->action;
863 	u16 tid = params->tid;
864 	u16 *ssn = &params->ssn;
865 	u16 buf_size = params->buf_size;
866 	bool amsdu = params->amsdu;
867 	u16 timeout = params->timeout;
868 
869 	IWL_DEBUG_HT(mvm, "A-MPDU action on addr %pM tid %d: action %d\n",
870 		     sta->addr, tid, action);
871 
872 	if (!(mvm->nvm_data->sku_cap_11n_enable))
873 		return -EACCES;
874 
875 	mutex_lock(&mvm->mutex);
876 
877 	switch (action) {
878 	case IEEE80211_AMPDU_RX_START:
879 		if (iwl_mvm_vif_from_mac80211(vif)->ap_sta_id ==
880 				iwl_mvm_sta_from_mac80211(sta)->sta_id) {
881 			struct iwl_mvm_vif *mvmvif;
882 			u16 macid = iwl_mvm_vif_from_mac80211(vif)->id;
883 			struct iwl_mvm_tcm_mac *mdata = &mvm->tcm.data[macid];
884 
885 			mdata->opened_rx_ba_sessions = true;
886 			mvmvif = iwl_mvm_vif_from_mac80211(vif);
887 			cancel_delayed_work(&mvmvif->uapsd_nonagg_detected_wk);
888 		}
889 		if (!iwl_enable_rx_ampdu()) {
890 			ret = -EINVAL;
891 			break;
892 		}
893 		ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, *ssn, true, buf_size,
894 					 timeout);
895 		break;
896 	case IEEE80211_AMPDU_RX_STOP:
897 		ret = iwl_mvm_sta_rx_agg(mvm, sta, tid, 0, false, buf_size,
898 					 timeout);
899 		break;
900 	case IEEE80211_AMPDU_TX_START:
901 		if (!iwl_enable_tx_ampdu()) {
902 			ret = -EINVAL;
903 			break;
904 		}
905 		ret = iwl_mvm_sta_tx_agg_start(mvm, vif, sta, tid, ssn);
906 		break;
907 	case IEEE80211_AMPDU_TX_STOP_CONT:
908 		ret = iwl_mvm_sta_tx_agg_stop(mvm, vif, sta, tid);
909 		break;
910 	case IEEE80211_AMPDU_TX_STOP_FLUSH:
911 	case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT:
912 		ret = iwl_mvm_sta_tx_agg_flush(mvm, vif, sta, tid);
913 		break;
914 	case IEEE80211_AMPDU_TX_OPERATIONAL:
915 		ret = iwl_mvm_sta_tx_agg_oper(mvm, vif, sta, tid,
916 					      buf_size, amsdu);
917 		break;
918 	default:
919 		WARN_ON_ONCE(1);
920 		ret = -EINVAL;
921 		break;
922 	}
923 
924 	if (!ret) {
925 		u16 rx_ba_ssn = 0;
926 
927 		if (action == IEEE80211_AMPDU_RX_START)
928 			rx_ba_ssn = *ssn;
929 
930 		iwl_mvm_ampdu_check_trigger(mvm, vif, sta, tid,
931 					    rx_ba_ssn, action);
932 	}
933 	mutex_unlock(&mvm->mutex);
934 
935 	return ret;
936 }
937 
938 static void iwl_mvm_cleanup_iterator(void *data, u8 *mac,
939 				     struct ieee80211_vif *vif)
940 {
941 	struct iwl_mvm *mvm = data;
942 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
943 
944 	mvmvif->uploaded = false;
945 	mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
946 
947 	spin_lock_bh(&mvm->time_event_lock);
948 	iwl_mvm_te_clear_data(mvm, &mvmvif->time_event_data);
949 	spin_unlock_bh(&mvm->time_event_lock);
950 
951 	mvmvif->phy_ctxt = NULL;
952 	memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
953 	memset(&mvmvif->probe_resp_data, 0, sizeof(mvmvif->probe_resp_data));
954 }
955 
956 static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
957 {
958 	iwl_mvm_stop_device(mvm);
959 
960 	mvm->cur_aid = 0;
961 
962 	mvm->scan_status = 0;
963 	mvm->ps_disabled = false;
964 	mvm->rfkill_safe_init_done = false;
965 
966 	/* just in case one was running */
967 	iwl_mvm_cleanup_roc_te(mvm);
968 	ieee80211_remain_on_channel_expired(mvm->hw);
969 
970 	iwl_mvm_ftm_restart(mvm);
971 
972 	/*
973 	 * cleanup all interfaces, even inactive ones, as some might have
974 	 * gone down during the HW restart
975 	 */
976 	ieee80211_iterate_interfaces(mvm->hw, 0, iwl_mvm_cleanup_iterator, mvm);
977 
978 	mvm->p2p_device_vif = NULL;
979 
980 	iwl_mvm_reset_phy_ctxts(mvm);
981 	memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
982 	memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
983 	memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
984 
985 	ieee80211_wake_queues(mvm->hw);
986 
987 	mvm->vif_count = 0;
988 	mvm->rx_ba_sessions = 0;
989 	mvm->fwrt.dump.conf = FW_DBG_INVALID;
990 	mvm->monitor_on = false;
991 
992 	/* keep statistics ticking */
993 	iwl_mvm_accu_radio_stats(mvm);
994 }
995 
996 int __iwl_mvm_mac_start(struct iwl_mvm *mvm)
997 {
998 	int ret;
999 
1000 	lockdep_assert_held(&mvm->mutex);
1001 
1002 	ret = iwl_mvm_mei_get_ownership(mvm);
1003 	if (ret)
1004 		return ret;
1005 
1006 	if (mvm->mei_nvm_data) {
1007 		/* We got the NIC, we can now free the MEI NVM data */
1008 		kfree(mvm->mei_nvm_data);
1009 		mvm->mei_nvm_data = NULL;
1010 
1011 		/*
1012 		 * We can't free the nvm_data we allocated based on the SAP
1013 		 * data because we registered to cfg80211 with the channels
1014 		 * allocated on mvm->nvm_data. Keep a pointer in temp_nvm_data
1015 		 * just in order to be able free it later.
1016 		 * NULLify nvm_data so that we will read the NVM from the
1017 		 * firmware this time.
1018 		 */
1019 		mvm->temp_nvm_data = mvm->nvm_data;
1020 		mvm->nvm_data = NULL;
1021 	}
1022 
1023 	if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status)) {
1024 		/*
1025 		 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1026 		 * so later code will - from now on - see that we're doing it.
1027 		 */
1028 		set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1029 		clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
1030 		/* Clean up some internal and mac80211 state on restart */
1031 		iwl_mvm_restart_cleanup(mvm);
1032 	}
1033 	ret = iwl_mvm_up(mvm);
1034 
1035 	iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_POST_INIT,
1036 			       NULL);
1037 	iwl_dbg_tlv_time_point(&mvm->fwrt, IWL_FW_INI_TIME_POINT_PERIODIC,
1038 			       NULL);
1039 
1040 	mvm->last_reset_or_resume_time_jiffies = jiffies;
1041 
1042 	if (ret && test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
1043 		/* Something went wrong - we need to finish some cleanup
1044 		 * that normally iwl_mvm_mac_restart_complete() below
1045 		 * would do.
1046 		 */
1047 		clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1048 	}
1049 
1050 	return ret;
1051 }
1052 
1053 static int iwl_mvm_mac_start(struct ieee80211_hw *hw)
1054 {
1055 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1056 	int ret;
1057 	int retry, max_retry = 0;
1058 
1059 	mutex_lock(&mvm->mutex);
1060 
1061 	/* we are starting the mac not in error flow, and restart is enabled */
1062 	if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) &&
1063 	    iwlwifi_mod_params.fw_restart) {
1064 		max_retry = IWL_MAX_INIT_RETRY;
1065 		/*
1066 		 * This will prevent mac80211 recovery flows to trigger during
1067 		 * init failures
1068 		 */
1069 		set_bit(IWL_MVM_STATUS_STARTING, &mvm->status);
1070 	}
1071 
1072 	for (retry = 0; retry <= max_retry; retry++) {
1073 		ret = __iwl_mvm_mac_start(mvm);
1074 		if (!ret)
1075 			break;
1076 
1077 		IWL_ERR(mvm, "mac start retry %d\n", retry);
1078 	}
1079 	clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status);
1080 
1081 	mutex_unlock(&mvm->mutex);
1082 
1083 	iwl_mvm_mei_set_sw_rfkill_state(mvm);
1084 
1085 	return ret;
1086 }
1087 
1088 static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
1089 {
1090 	int ret;
1091 
1092 	mutex_lock(&mvm->mutex);
1093 
1094 	clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1095 
1096 	ret = iwl_mvm_update_quotas(mvm, true, NULL);
1097 	if (ret)
1098 		IWL_ERR(mvm, "Failed to update quotas after restart (%d)\n",
1099 			ret);
1100 
1101 	iwl_mvm_send_recovery_cmd(mvm, ERROR_RECOVERY_END_OF_RECOVERY);
1102 
1103 	/*
1104 	 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1105 	 * of packets the FW sent out, so we must reconnect.
1106 	 */
1107 	iwl_mvm_teardown_tdls_peers(mvm);
1108 
1109 	mutex_unlock(&mvm->mutex);
1110 }
1111 
1112 static void
1113 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
1114 			      enum ieee80211_reconfig_type reconfig_type)
1115 {
1116 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1117 
1118 	switch (reconfig_type) {
1119 	case IEEE80211_RECONFIG_TYPE_RESTART:
1120 		iwl_mvm_restart_complete(mvm);
1121 		break;
1122 	case IEEE80211_RECONFIG_TYPE_SUSPEND:
1123 		break;
1124 	}
1125 }
1126 
1127 void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
1128 {
1129 	lockdep_assert_held(&mvm->mutex);
1130 
1131 	iwl_mvm_ftm_initiator_smooth_stop(mvm);
1132 
1133 	/* firmware counters are obviously reset now, but we shouldn't
1134 	 * partially track so also clear the fw_reset_accu counters.
1135 	 */
1136 	memset(&mvm->accu_radio_stats, 0, sizeof(mvm->accu_radio_stats));
1137 
1138 	/* async_handlers_wk is now blocked */
1139 
1140 	if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) < 12)
1141 		iwl_mvm_rm_aux_sta(mvm);
1142 
1143 	iwl_mvm_stop_device(mvm);
1144 
1145 	iwl_mvm_async_handlers_purge(mvm);
1146 	/* async_handlers_list is empty and will stay empty: HW is stopped */
1147 
1148 	/*
1149 	 * Clear IN_HW_RESTART and HW_RESTART_REQUESTED flag when stopping the
1150 	 * hw (as restart_complete() won't be called in this case) and mac80211
1151 	 * won't execute the restart.
1152 	 * But make sure to cleanup interfaces that have gone down before/during
1153 	 * HW restart was requested.
1154 	 */
1155 	if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) ||
1156 	    test_and_clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
1157 			       &mvm->status))
1158 		ieee80211_iterate_interfaces(mvm->hw, 0,
1159 					     iwl_mvm_cleanup_iterator, mvm);
1160 
1161 	/* We shouldn't have any UIDs still set.  Loop over all the UIDs to
1162 	 * make sure there's nothing left there and warn if any is found.
1163 	 */
1164 	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
1165 		int i;
1166 
1167 		for (i = 0; i < mvm->max_scans; i++) {
1168 			if (WARN_ONCE(mvm->scan_uid_status[i],
1169 				      "UMAC scan UID %d status was not cleaned\n",
1170 				      i))
1171 				mvm->scan_uid_status[i] = 0;
1172 		}
1173 	}
1174 }
1175 
1176 static void iwl_mvm_mac_stop(struct ieee80211_hw *hw)
1177 {
1178 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1179 
1180 	flush_work(&mvm->async_handlers_wk);
1181 	flush_work(&mvm->add_stream_wk);
1182 
1183 	/*
1184 	 * Lock and clear the firmware running bit here already, so that
1185 	 * new commands coming in elsewhere, e.g. from debugfs, will not
1186 	 * be able to proceed. This is important here because one of those
1187 	 * debugfs files causes the firmware dump to be triggered, and if we
1188 	 * don't stop debugfs accesses before canceling that it could be
1189 	 * retriggered after we flush it but before we've cleared the bit.
1190 	 */
1191 	clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
1192 
1193 	cancel_delayed_work_sync(&mvm->cs_tx_unblock_dwork);
1194 	cancel_delayed_work_sync(&mvm->scan_timeout_dwork);
1195 
1196 	/*
1197 	 * The work item could be running or queued if the
1198 	 * ROC time event stops just as we get here.
1199 	 */
1200 	flush_work(&mvm->roc_done_wk);
1201 
1202 	iwl_mvm_mei_set_sw_rfkill_state(mvm);
1203 
1204 	mutex_lock(&mvm->mutex);
1205 	__iwl_mvm_mac_stop(mvm);
1206 	mutex_unlock(&mvm->mutex);
1207 
1208 	/*
1209 	 * The worker might have been waiting for the mutex, let it run and
1210 	 * discover that its list is now empty.
1211 	 */
1212 	cancel_work_sync(&mvm->async_handlers_wk);
1213 }
1214 
1215 static struct iwl_mvm_phy_ctxt *iwl_mvm_get_free_phy_ctxt(struct iwl_mvm *mvm)
1216 {
1217 	u16 i;
1218 
1219 	lockdep_assert_held(&mvm->mutex);
1220 
1221 	for (i = 0; i < NUM_PHY_CTX; i++)
1222 		if (!mvm->phy_ctxts[i].ref)
1223 			return &mvm->phy_ctxts[i];
1224 
1225 	IWL_ERR(mvm, "No available PHY context\n");
1226 	return NULL;
1227 }
1228 
1229 static int iwl_mvm_set_tx_power(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
1230 				s16 tx_power)
1231 {
1232 	u32 cmd_id = REDUCE_TX_POWER_CMD;
1233 	int len;
1234 	struct iwl_dev_tx_power_cmd cmd = {
1235 		.common.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC),
1236 		.common.mac_context_id =
1237 			cpu_to_le32(iwl_mvm_vif_from_mac80211(vif)->id),
1238 		.common.pwr_restriction = cpu_to_le16(8 * tx_power),
1239 	};
1240 	u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id,
1241 					   IWL_FW_CMD_VER_UNKNOWN);
1242 
1243 	if (tx_power == IWL_DEFAULT_MAX_TX_POWER)
1244 		cmd.common.pwr_restriction = cpu_to_le16(IWL_DEV_MAX_TX_POWER);
1245 
1246 	if (cmd_ver == 7)
1247 		len = sizeof(cmd.v7);
1248 	else if (cmd_ver == 6)
1249 		len = sizeof(cmd.v6);
1250 	else if (fw_has_api(&mvm->fw->ucode_capa,
1251 			    IWL_UCODE_TLV_API_REDUCE_TX_POWER))
1252 		len = sizeof(cmd.v5);
1253 	else if (fw_has_capa(&mvm->fw->ucode_capa,
1254 			     IWL_UCODE_TLV_CAPA_TX_POWER_ACK))
1255 		len = sizeof(cmd.v4);
1256 	else
1257 		len = sizeof(cmd.v3);
1258 
1259 	/* all structs have the same common part, add it */
1260 	len += sizeof(cmd.common);
1261 
1262 	return iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, len, &cmd);
1263 }
1264 
1265 static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
1266 				       struct ieee80211_vif *vif)
1267 {
1268 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1269 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1270 	int ret;
1271 
1272 	mutex_lock(&mvm->mutex);
1273 
1274 	if (vif->type == NL80211_IFTYPE_STATION) {
1275 		struct iwl_mvm_sta *mvmsta;
1276 
1277 		mvmvif->csa_bcn_pending = false;
1278 		mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
1279 							  mvmvif->ap_sta_id);
1280 
1281 		if (WARN_ON(!mvmsta)) {
1282 			ret = -EIO;
1283 			goto out_unlock;
1284 		}
1285 
1286 		iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
1287 
1288 		iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1289 
1290 		if (!fw_has_capa(&mvm->fw->ucode_capa,
1291 				 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
1292 			ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
1293 			if (ret)
1294 				goto out_unlock;
1295 
1296 			iwl_mvm_stop_session_protection(mvm, vif);
1297 		}
1298 	}
1299 
1300 	mvmvif->ps_disabled = false;
1301 
1302 	ret = iwl_mvm_power_update_ps(mvm);
1303 
1304 out_unlock:
1305 	if (mvmvif->csa_failed)
1306 		ret = -EIO;
1307 	mutex_unlock(&mvm->mutex);
1308 
1309 	return ret;
1310 }
1311 
1312 static void iwl_mvm_abort_channel_switch(struct ieee80211_hw *hw,
1313 					 struct ieee80211_vif *vif)
1314 {
1315 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1316 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1317 	struct iwl_chan_switch_te_cmd cmd = {
1318 		.mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
1319 							  mvmvif->color)),
1320 		.action = cpu_to_le32(FW_CTXT_ACTION_REMOVE),
1321 	};
1322 
1323 	/*
1324 	 * In the new flow since FW is in charge of the timing,
1325 	 * if driver has canceled the channel switch he will receive the
1326 	 * CHANNEL_SWITCH_START_NOTIF notification from FW and then cancel it
1327 	 */
1328 	if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
1329 				    CHANNEL_SWITCH_ERROR_NOTIF, 0))
1330 		return;
1331 
1332 	IWL_DEBUG_MAC80211(mvm, "Abort CSA on mac %d\n", mvmvif->id);
1333 
1334 	mutex_lock(&mvm->mutex);
1335 	if (!fw_has_capa(&mvm->fw->ucode_capa,
1336 			 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
1337 		iwl_mvm_remove_csa_period(mvm, vif);
1338 	else
1339 		WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
1340 					     WIDE_ID(MAC_CONF_GROUP,
1341 						     CHANNEL_SWITCH_TIME_EVENT_CMD),
1342 					     0, sizeof(cmd), &cmd));
1343 	mvmvif->csa_failed = true;
1344 	mutex_unlock(&mvm->mutex);
1345 
1346 	iwl_mvm_post_channel_switch(hw, vif);
1347 }
1348 
1349 static void iwl_mvm_channel_switch_disconnect_wk(struct work_struct *wk)
1350 {
1351 	struct iwl_mvm_vif *mvmvif;
1352 	struct ieee80211_vif *vif;
1353 
1354 	mvmvif = container_of(wk, struct iwl_mvm_vif, csa_work.work);
1355 	vif = container_of((void *)mvmvif, struct ieee80211_vif, drv_priv);
1356 
1357 	/* Trigger disconnect (should clear the CSA state) */
1358 	ieee80211_chswitch_done(vif, false);
1359 }
1360 
1361 static int iwl_mvm_mac_add_interface(struct ieee80211_hw *hw,
1362 				     struct ieee80211_vif *vif)
1363 {
1364 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1365 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1366 	int ret;
1367 
1368 	mvmvif->mvm = mvm;
1369 	RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL);
1370 
1371 	/*
1372 	 * Not much to do here. The stack will not allow interface
1373 	 * types or combinations that we didn't advertise, so we
1374 	 * don't really have to check the types.
1375 	 */
1376 
1377 	mutex_lock(&mvm->mutex);
1378 
1379 	/* make sure that beacon statistics don't go backwards with FW reset */
1380 	if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
1381 		mvmvif->beacon_stats.accu_num_beacons +=
1382 			mvmvif->beacon_stats.num_beacons;
1383 
1384 	/* Allocate resources for the MAC context, and add it to the fw  */
1385 	ret = iwl_mvm_mac_ctxt_init(mvm, vif);
1386 	if (ret)
1387 		goto out_unlock;
1388 
1389 	rcu_assign_pointer(mvm->vif_id_to_mac[mvmvif->id], vif);
1390 
1391 	/* Counting number of interfaces is needed for legacy PM */
1392 	if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1393 		mvm->vif_count++;
1394 
1395 	/*
1396 	 * The AP binding flow can be done only after the beacon
1397 	 * template is configured (which happens only in the mac80211
1398 	 * start_ap() flow), and adding the broadcast station can happen
1399 	 * only after the binding.
1400 	 * In addition, since modifying the MAC before adding a bcast
1401 	 * station is not allowed by the FW, delay the adding of MAC context to
1402 	 * the point where we can also add the bcast station.
1403 	 * In short: there's not much we can do at this point, other than
1404 	 * allocating resources :)
1405 	 */
1406 	if (vif->type == NL80211_IFTYPE_AP ||
1407 	    vif->type == NL80211_IFTYPE_ADHOC) {
1408 		ret = iwl_mvm_alloc_bcast_sta(mvm, vif);
1409 		if (ret) {
1410 			IWL_ERR(mvm, "Failed to allocate bcast sta\n");
1411 			goto out_release;
1412 		}
1413 
1414 		/*
1415 		 * Only queue for this station is the mcast queue,
1416 		 * which shouldn't be in TFD mask anyway
1417 		 */
1418 		ret = iwl_mvm_allocate_int_sta(mvm, &mvmvif->mcast_sta,
1419 					       0, vif->type,
1420 					       IWL_STA_MULTICAST);
1421 		if (ret)
1422 			goto out_release;
1423 
1424 		iwl_mvm_vif_dbgfs_register(mvm, vif);
1425 		goto out_unlock;
1426 	}
1427 
1428 	mvmvif->features |= hw->netdev_features;
1429 
1430 	ret = iwl_mvm_mac_ctxt_add(mvm, vif);
1431 	if (ret)
1432 		goto out_release;
1433 
1434 	ret = iwl_mvm_power_update_mac(mvm);
1435 	if (ret)
1436 		goto out_remove_mac;
1437 
1438 	/* beacon filtering */
1439 	ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
1440 	if (ret)
1441 		goto out_remove_mac;
1442 
1443 	if (!mvm->bf_allowed_vif &&
1444 	    vif->type == NL80211_IFTYPE_STATION && !vif->p2p) {
1445 		mvm->bf_allowed_vif = mvmvif;
1446 		vif->driver_flags |= IEEE80211_VIF_BEACON_FILTER |
1447 				     IEEE80211_VIF_SUPPORTS_CQM_RSSI;
1448 	}
1449 
1450 	/*
1451 	 * P2P_DEVICE interface does not have a channel context assigned to it,
1452 	 * so a dedicated PHY context is allocated to it and the corresponding
1453 	 * MAC context is bound to it at this stage.
1454 	 */
1455 	if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1456 
1457 		mvmvif->phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
1458 		if (!mvmvif->phy_ctxt) {
1459 			ret = -ENOSPC;
1460 			goto out_free_bf;
1461 		}
1462 
1463 		iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
1464 		ret = iwl_mvm_binding_add_vif(mvm, vif);
1465 		if (ret)
1466 			goto out_unref_phy;
1467 
1468 		ret = iwl_mvm_add_p2p_bcast_sta(mvm, vif);
1469 		if (ret)
1470 			goto out_unbind;
1471 
1472 		/* Save a pointer to p2p device vif, so it can later be used to
1473 		 * update the p2p device MAC when a GO is started/stopped */
1474 		mvm->p2p_device_vif = vif;
1475 	}
1476 
1477 	iwl_mvm_tcm_add_vif(mvm, vif);
1478 	INIT_DELAYED_WORK(&mvmvif->csa_work,
1479 			  iwl_mvm_channel_switch_disconnect_wk);
1480 
1481 	if (vif->type == NL80211_IFTYPE_MONITOR)
1482 		mvm->monitor_on = true;
1483 
1484 	iwl_mvm_vif_dbgfs_register(mvm, vif);
1485 
1486 	if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
1487 	    vif->type == NL80211_IFTYPE_STATION && !vif->p2p &&
1488 	    !mvm->csme_vif && mvm->mei_registered) {
1489 		iwl_mei_set_nic_info(vif->addr, mvm->nvm_data->hw_addr);
1490 		iwl_mei_set_netdev(ieee80211_vif_to_wdev(vif)->netdev);
1491 		mvm->csme_vif = vif;
1492 	}
1493 
1494 	goto out_unlock;
1495 
1496  out_unbind:
1497 	iwl_mvm_binding_remove_vif(mvm, vif);
1498  out_unref_phy:
1499 	iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1500  out_free_bf:
1501 	if (mvm->bf_allowed_vif == mvmvif) {
1502 		mvm->bf_allowed_vif = NULL;
1503 		vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1504 				       IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1505 	}
1506  out_remove_mac:
1507 	mvmvif->phy_ctxt = NULL;
1508 	iwl_mvm_mac_ctxt_remove(mvm, vif);
1509  out_release:
1510 	if (vif->type != NL80211_IFTYPE_P2P_DEVICE)
1511 		mvm->vif_count--;
1512  out_unlock:
1513 	mutex_unlock(&mvm->mutex);
1514 
1515 	return ret;
1516 }
1517 
1518 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
1519 					struct ieee80211_vif *vif)
1520 {
1521 	if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1522 		/*
1523 		 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1524 		 * We assume here that all the packets sent to the OFFCHANNEL
1525 		 * queue are sent in ROC session.
1526 		 */
1527 		flush_work(&mvm->roc_done_wk);
1528 	}
1529 }
1530 
1531 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw *hw,
1532 					 struct ieee80211_vif *vif)
1533 {
1534 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1535 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1536 	struct iwl_probe_resp_data *probe_data;
1537 
1538 	iwl_mvm_prepare_mac_removal(mvm, vif);
1539 
1540 	if (!(vif->type == NL80211_IFTYPE_AP ||
1541 	      vif->type == NL80211_IFTYPE_ADHOC))
1542 		iwl_mvm_tcm_rm_vif(mvm, vif);
1543 
1544 	mutex_lock(&mvm->mutex);
1545 
1546 	if (vif == mvm->csme_vif) {
1547 		iwl_mei_set_netdev(NULL);
1548 		mvm->csme_vif = NULL;
1549 	}
1550 
1551 	probe_data = rcu_dereference_protected(mvmvif->probe_resp_data,
1552 					       lockdep_is_held(&mvm->mutex));
1553 	RCU_INIT_POINTER(mvmvif->probe_resp_data, NULL);
1554 	if (probe_data)
1555 		kfree_rcu(probe_data, rcu_head);
1556 
1557 	if (mvm->bf_allowed_vif == mvmvif) {
1558 		mvm->bf_allowed_vif = NULL;
1559 		vif->driver_flags &= ~(IEEE80211_VIF_BEACON_FILTER |
1560 				       IEEE80211_VIF_SUPPORTS_CQM_RSSI);
1561 	}
1562 
1563 	if (vif->bss_conf.ftm_responder)
1564 		memset(&mvm->ftm_resp_stats, 0, sizeof(mvm->ftm_resp_stats));
1565 
1566 	iwl_mvm_vif_dbgfs_clean(mvm, vif);
1567 
1568 	/*
1569 	 * For AP/GO interface, the tear down of the resources allocated to the
1570 	 * interface is be handled as part of the stop_ap flow.
1571 	 */
1572 	if (vif->type == NL80211_IFTYPE_AP ||
1573 	    vif->type == NL80211_IFTYPE_ADHOC) {
1574 #ifdef CONFIG_NL80211_TESTMODE
1575 		if (vif == mvm->noa_vif) {
1576 			mvm->noa_vif = NULL;
1577 			mvm->noa_duration = 0;
1578 		}
1579 #endif
1580 		iwl_mvm_dealloc_int_sta(mvm, &mvmvif->mcast_sta);
1581 		iwl_mvm_dealloc_bcast_sta(mvm, vif);
1582 		goto out_release;
1583 	}
1584 
1585 	if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
1586 		mvm->p2p_device_vif = NULL;
1587 		iwl_mvm_rm_p2p_bcast_sta(mvm, vif);
1588 		iwl_mvm_binding_remove_vif(mvm, vif);
1589 		iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
1590 		mvmvif->phy_ctxt = NULL;
1591 	}
1592 
1593 	if (mvm->vif_count && vif->type != NL80211_IFTYPE_P2P_DEVICE)
1594 		mvm->vif_count--;
1595 
1596 	iwl_mvm_power_update_mac(mvm);
1597 	iwl_mvm_mac_ctxt_remove(mvm, vif);
1598 
1599 	RCU_INIT_POINTER(mvm->vif_id_to_mac[mvmvif->id], NULL);
1600 
1601 	if (vif->type == NL80211_IFTYPE_MONITOR)
1602 		mvm->monitor_on = false;
1603 
1604 out_release:
1605 	mutex_unlock(&mvm->mutex);
1606 }
1607 
1608 static int iwl_mvm_mac_config(struct ieee80211_hw *hw, u32 changed)
1609 {
1610 	return 0;
1611 }
1612 
1613 struct iwl_mvm_mc_iter_data {
1614 	struct iwl_mvm *mvm;
1615 	int port_id;
1616 };
1617 
1618 static void iwl_mvm_mc_iface_iterator(void *_data, u8 *mac,
1619 				      struct ieee80211_vif *vif)
1620 {
1621 	struct iwl_mvm_mc_iter_data *data = _data;
1622 	struct iwl_mvm *mvm = data->mvm;
1623 	struct iwl_mcast_filter_cmd *cmd = mvm->mcast_filter_cmd;
1624 	struct iwl_host_cmd hcmd = {
1625 		.id = MCAST_FILTER_CMD,
1626 		.flags = CMD_ASYNC,
1627 		.dataflags[0] = IWL_HCMD_DFL_NOCOPY,
1628 	};
1629 	int ret, len;
1630 
1631 	/* if we don't have free ports, mcast frames will be dropped */
1632 	if (WARN_ON_ONCE(data->port_id >= MAX_PORT_ID_NUM))
1633 		return;
1634 
1635 	if (vif->type != NL80211_IFTYPE_STATION ||
1636 	    !vif->bss_conf.assoc)
1637 		return;
1638 
1639 	cmd->port_id = data->port_id++;
1640 	memcpy(cmd->bssid, vif->bss_conf.bssid, ETH_ALEN);
1641 	len = roundup(sizeof(*cmd) + cmd->count * ETH_ALEN, 4);
1642 
1643 	hcmd.len[0] = len;
1644 	hcmd.data[0] = cmd;
1645 
1646 	ret = iwl_mvm_send_cmd(mvm, &hcmd);
1647 	if (ret)
1648 		IWL_ERR(mvm, "mcast filter cmd error. ret=%d\n", ret);
1649 }
1650 
1651 static void iwl_mvm_recalc_multicast(struct iwl_mvm *mvm)
1652 {
1653 	struct iwl_mvm_mc_iter_data iter_data = {
1654 		.mvm = mvm,
1655 	};
1656 	int ret;
1657 
1658 	lockdep_assert_held(&mvm->mutex);
1659 
1660 	if (WARN_ON_ONCE(!mvm->mcast_filter_cmd))
1661 		return;
1662 
1663 	ieee80211_iterate_active_interfaces_atomic(
1664 		mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1665 		iwl_mvm_mc_iface_iterator, &iter_data);
1666 
1667 	/*
1668 	 * Send a (synchronous) ech command so that we wait for the
1669 	 * multiple asynchronous MCAST_FILTER_CMD commands sent by
1670 	 * the interface iterator. Otherwise, we might get here over
1671 	 * and over again (by userspace just sending a lot of these)
1672 	 * and the CPU can send them faster than the firmware can
1673 	 * process them.
1674 	 * Note that the CPU is still faster - but with this we'll
1675 	 * actually send fewer commands overall because the CPU will
1676 	 * not schedule the work in mac80211 as frequently if it's
1677 	 * still running when rescheduled (possibly multiple times).
1678 	 */
1679 	ret = iwl_mvm_send_cmd_pdu(mvm, ECHO_CMD, 0, 0, NULL);
1680 	if (ret)
1681 		IWL_ERR(mvm, "Failed to synchronize multicast groups update\n");
1682 }
1683 
1684 static u64 iwl_mvm_prepare_multicast(struct ieee80211_hw *hw,
1685 				     struct netdev_hw_addr_list *mc_list)
1686 {
1687 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1688 	struct iwl_mcast_filter_cmd *cmd;
1689 	struct netdev_hw_addr *addr;
1690 	int addr_count;
1691 	bool pass_all;
1692 	int len;
1693 
1694 	addr_count = netdev_hw_addr_list_count(mc_list);
1695 	pass_all = addr_count > MAX_MCAST_FILTERING_ADDRESSES ||
1696 		   IWL_MVM_FW_MCAST_FILTER_PASS_ALL;
1697 	if (pass_all)
1698 		addr_count = 0;
1699 
1700 	len = roundup(sizeof(*cmd) + addr_count * ETH_ALEN, 4);
1701 	cmd = kzalloc(len, GFP_ATOMIC);
1702 	if (!cmd)
1703 		return 0;
1704 
1705 	if (pass_all) {
1706 		cmd->pass_all = 1;
1707 #if defined(__linux__)
1708 		return (u64)(unsigned long)cmd;
1709 #elif defined(__FreeBSD__)
1710 		return (u64)(uintptr_t)cmd;
1711 #endif
1712 	}
1713 
1714 	netdev_hw_addr_list_for_each(addr, mc_list) {
1715 #if defined(__linux__)
1716 		IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %pM\n",
1717 				   cmd->count, addr->addr);
1718 #elif defined(__FreeBSD__)
1719 		IWL_DEBUG_MAC80211(mvm, "mcast addr (%d): %6D\n",
1720 				   cmd->count, addr->addr, ":");
1721 #endif
1722 		memcpy(&cmd->addr_list[cmd->count * ETH_ALEN],
1723 		       addr->addr, ETH_ALEN);
1724 		cmd->count++;
1725 	}
1726 
1727 #if defined(__linux__)
1728 	return (u64)(unsigned long)cmd;
1729 #elif defined(__FreeBSD__)
1730 	return (u64)(uintptr_t)cmd;
1731 #endif
1732 }
1733 
1734 static void iwl_mvm_configure_filter(struct ieee80211_hw *hw,
1735 				     unsigned int changed_flags,
1736 				     unsigned int *total_flags,
1737 				     u64 multicast)
1738 {
1739 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1740 #if defined(__linux__)
1741 	struct iwl_mcast_filter_cmd *cmd = (void *)(unsigned long)multicast;
1742 #elif defined(__FreeBSD__)
1743 	struct iwl_mcast_filter_cmd *cmd = (void *)(uintptr_t)multicast;
1744 #endif
1745 
1746 	mutex_lock(&mvm->mutex);
1747 
1748 	/* replace previous configuration */
1749 	kfree(mvm->mcast_filter_cmd);
1750 	mvm->mcast_filter_cmd = cmd;
1751 
1752 	if (!cmd)
1753 		goto out;
1754 
1755 	if (changed_flags & FIF_ALLMULTI)
1756 		cmd->pass_all = !!(*total_flags & FIF_ALLMULTI);
1757 
1758 	if (cmd->pass_all)
1759 		cmd->count = 0;
1760 
1761 	iwl_mvm_recalc_multicast(mvm);
1762 out:
1763 	mutex_unlock(&mvm->mutex);
1764 	*total_flags = 0;
1765 }
1766 
1767 static void iwl_mvm_config_iface_filter(struct ieee80211_hw *hw,
1768 					struct ieee80211_vif *vif,
1769 					unsigned int filter_flags,
1770 					unsigned int changed_flags)
1771 {
1772 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1773 
1774 	/* We support only filter for probe requests */
1775 	if (!(changed_flags & FIF_PROBE_REQ))
1776 		return;
1777 
1778 	/* Supported only for p2p client interfaces */
1779 	if (vif->type != NL80211_IFTYPE_STATION || !vif->bss_conf.assoc ||
1780 	    !vif->p2p)
1781 		return;
1782 
1783 	mutex_lock(&mvm->mutex);
1784 	iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
1785 	mutex_unlock(&mvm->mutex);
1786 }
1787 
1788 static int iwl_mvm_update_mu_groups(struct iwl_mvm *mvm,
1789 				    struct ieee80211_vif *vif)
1790 {
1791 	struct iwl_mu_group_mgmt_cmd cmd = {};
1792 
1793 	memcpy(cmd.membership_status, vif->bss_conf.mu_group.membership,
1794 	       WLAN_MEMBERSHIP_LEN);
1795 	memcpy(cmd.user_position, vif->bss_conf.mu_group.position,
1796 	       WLAN_USER_POSITION_LEN);
1797 
1798 	return iwl_mvm_send_cmd_pdu(mvm,
1799 				    WIDE_ID(DATA_PATH_GROUP,
1800 					    UPDATE_MU_GROUPS_CMD),
1801 				    0, sizeof(cmd), &cmd);
1802 }
1803 
1804 static void iwl_mvm_mu_mimo_iface_iterator(void *_data, u8 *mac,
1805 					   struct ieee80211_vif *vif)
1806 {
1807 	if (vif->mu_mimo_owner) {
1808 		struct iwl_mu_group_mgmt_notif *notif = _data;
1809 
1810 		/*
1811 		 * MU-MIMO Group Id action frame is little endian. We treat
1812 		 * the data received from firmware as if it came from the
1813 		 * action frame, so no conversion is needed.
1814 		 */
1815 		ieee80211_update_mu_groups(vif,
1816 					   (u8 *)&notif->membership_status,
1817 					   (u8 *)&notif->user_position);
1818 	}
1819 }
1820 
1821 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm *mvm,
1822 			       struct iwl_rx_cmd_buffer *rxb)
1823 {
1824 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
1825 	struct iwl_mu_group_mgmt_notif *notif = (void *)pkt->data;
1826 
1827 	ieee80211_iterate_active_interfaces_atomic(
1828 			mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1829 			iwl_mvm_mu_mimo_iface_iterator, notif);
1830 }
1831 
1832 static u8 iwl_mvm_he_get_ppe_val(u8 *ppe, u8 ppe_pos_bit)
1833 {
1834 	u8 byte_num = ppe_pos_bit / 8;
1835 	u8 bit_num = ppe_pos_bit % 8;
1836 	u8 residue_bits;
1837 	u8 res;
1838 
1839 	if (bit_num <= 5)
1840 		return (ppe[byte_num] >> bit_num) &
1841 		       (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE) - 1);
1842 
1843 	/*
1844 	 * If bit_num > 5, we have to combine bits with next byte.
1845 	 * Calculate how many bits we need to take from current byte (called
1846 	 * here "residue_bits"), and add them to bits from next byte.
1847 	 */
1848 
1849 	residue_bits = 8 - bit_num;
1850 
1851 	res = (ppe[byte_num + 1] &
1852 	       (BIT(IEEE80211_PPE_THRES_INFO_PPET_SIZE - residue_bits) - 1)) <<
1853 	      residue_bits;
1854 	res += (ppe[byte_num] >> bit_num) & (BIT(residue_bits) - 1);
1855 
1856 	return res;
1857 }
1858 
1859 static void iwl_mvm_parse_ppe(struct iwl_mvm *mvm,
1860 			      struct iwl_he_pkt_ext_v2 *pkt_ext, u8 nss,
1861 			      u8 ru_index_bitmap, u8 *ppe, u8 ppe_pos_bit)
1862 {
1863 	int i;
1864 
1865 	/*
1866 	* FW currently supports only nss == MAX_HE_SUPP_NSS
1867 	*
1868 	* If nss > MAX: we can ignore values we don't support
1869 	* If nss < MAX: we can set zeros in other streams
1870 	*/
1871 	if (nss > MAX_HE_SUPP_NSS) {
1872 		IWL_INFO(mvm, "Got NSS = %d - trimming to %d\n", nss,
1873 			 MAX_HE_SUPP_NSS);
1874 		nss = MAX_HE_SUPP_NSS;
1875 	}
1876 
1877 	for (i = 0; i < nss; i++) {
1878 		u8 ru_index_tmp = ru_index_bitmap << 1;
1879 		u8 low_th = IWL_HE_PKT_EXT_NONE, high_th = IWL_HE_PKT_EXT_NONE;
1880 		u8 bw;
1881 
1882 		for (bw = 0;
1883 		     bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
1884 		     bw++) {
1885 			ru_index_tmp >>= 1;
1886 
1887 			if (!(ru_index_tmp & 1))
1888 				continue;
1889 
1890 			high_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit);
1891 			ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE;
1892 			low_th = iwl_mvm_he_get_ppe_val(ppe, ppe_pos_bit);
1893 			ppe_pos_bit += IEEE80211_PPE_THRES_INFO_PPET_SIZE;
1894 
1895 			pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th;
1896 			pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th;
1897 		}
1898 	}
1899 }
1900 
1901 static void iwl_mvm_set_pkt_ext_from_he_ppe(struct iwl_mvm *mvm,
1902 					    struct ieee80211_sta *sta,
1903 					    struct iwl_he_pkt_ext_v2 *pkt_ext)
1904 {
1905 	u8 nss = (sta->deflink.he_cap.ppe_thres[0] & IEEE80211_PPE_THRES_NSS_MASK) + 1;
1906 	u8 *ppe = &sta->deflink.he_cap.ppe_thres[0];
1907 	u8 ru_index_bitmap =
1908 		u8_get_bits(*ppe,
1909 			    IEEE80211_PPE_THRES_RU_INDEX_BITMASK_MASK);
1910 	/* Starting after PPE header */
1911 	u8 ppe_pos_bit = IEEE80211_HE_PPE_THRES_INFO_HEADER_SIZE;
1912 
1913 	iwl_mvm_parse_ppe(mvm, pkt_ext, nss, ru_index_bitmap, ppe, ppe_pos_bit);
1914 }
1915 
1916 static void iwl_mvm_set_pkt_ext_from_nominal_padding(struct iwl_he_pkt_ext_v2 *pkt_ext,
1917 						     u8 nominal_padding,
1918 						     u32 *flags)
1919 {
1920 	int low_th = -1;
1921 	int high_th = -1;
1922 	int i;
1923 
1924 	switch (nominal_padding) {
1925 	case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_0US:
1926 		low_th = IWL_HE_PKT_EXT_NONE;
1927 		high_th = IWL_HE_PKT_EXT_NONE;
1928 		break;
1929 	case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_8US:
1930 		low_th = IWL_HE_PKT_EXT_BPSK;
1931 		high_th = IWL_HE_PKT_EXT_NONE;
1932 		break;
1933 	case IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_16US:
1934 		low_th = IWL_HE_PKT_EXT_NONE;
1935 		high_th = IWL_HE_PKT_EXT_BPSK;
1936 		break;
1937 	}
1938 
1939 	/* Set the PPE thresholds accordingly */
1940 	if (low_th >= 0 && high_th >= 0) {
1941 		for (i = 0; i < MAX_HE_SUPP_NSS; i++) {
1942 			u8 bw;
1943 
1944 			for (bw = 0;
1945 			     bw < ARRAY_SIZE(pkt_ext->pkt_ext_qam_th[i]);
1946 			     bw++) {
1947 				pkt_ext->pkt_ext_qam_th[i][bw][0] = low_th;
1948 				pkt_ext->pkt_ext_qam_th[i][bw][1] = high_th;
1949 			}
1950 		}
1951 
1952 		*flags |= STA_CTXT_HE_PACKET_EXT;
1953 	}
1954 }
1955 
1956 static void iwl_mvm_cfg_he_sta(struct iwl_mvm *mvm,
1957 			       struct ieee80211_vif *vif, u8 sta_id)
1958 {
1959 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1960 	struct iwl_he_sta_context_cmd_v3 sta_ctxt_cmd = {
1961 		.sta_id = sta_id,
1962 		.tid_limit = IWL_MAX_TID_COUNT,
1963 		.bss_color = vif->bss_conf.he_bss_color.color,
1964 		.htc_trig_based_pkt_ext = vif->bss_conf.htc_trig_based_pkt_ext,
1965 		.frame_time_rts_th =
1966 			cpu_to_le16(vif->bss_conf.frame_time_rts_th),
1967 	};
1968 	struct iwl_he_sta_context_cmd_v2 sta_ctxt_cmd_v2 = {};
1969 	u32 cmd_id = WIDE_ID(DATA_PATH_GROUP, STA_HE_CTXT_CMD);
1970 	u8 ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd_id, 2);
1971 	int size;
1972 	struct ieee80211_sta *sta;
1973 	u32 flags;
1974 	int i;
1975 	const struct ieee80211_sta_he_cap *own_he_cap = NULL;
1976 	struct ieee80211_chanctx_conf *chanctx_conf;
1977 	const struct ieee80211_supported_band *sband;
1978 	void *cmd;
1979 
1980 	if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_MBSSID_HE))
1981 		ver = 1;
1982 
1983 	switch (ver) {
1984 	case 1:
1985 		/* same layout as v2 except some data at the end */
1986 		cmd = &sta_ctxt_cmd_v2;
1987 		size = sizeof(struct iwl_he_sta_context_cmd_v1);
1988 		break;
1989 	case 2:
1990 		cmd = &sta_ctxt_cmd_v2;
1991 		size = sizeof(struct iwl_he_sta_context_cmd_v2);
1992 		break;
1993 	case 3:
1994 		cmd = &sta_ctxt_cmd;
1995 		size = sizeof(struct iwl_he_sta_context_cmd_v3);
1996 		break;
1997 	default:
1998 		IWL_ERR(mvm, "bad STA_HE_CTXT_CMD version %d\n", ver);
1999 		return;
2000 	}
2001 
2002 	rcu_read_lock();
2003 
2004 	chanctx_conf = rcu_dereference(vif->chanctx_conf);
2005 	if (WARN_ON(!chanctx_conf)) {
2006 		rcu_read_unlock();
2007 		return;
2008 	}
2009 
2010 	sband = mvm->hw->wiphy->bands[chanctx_conf->def.chan->band];
2011 	own_he_cap = ieee80211_get_he_iftype_cap(sband,
2012 						 ieee80211_vif_type_p2p(vif));
2013 
2014 	sta = rcu_dereference(mvm->fw_id_to_mac_id[sta_ctxt_cmd.sta_id]);
2015 	if (IS_ERR_OR_NULL(sta)) {
2016 		rcu_read_unlock();
2017 		WARN(1, "Can't find STA to configure HE\n");
2018 		return;
2019 	}
2020 
2021 	if (!sta->deflink.he_cap.has_he) {
2022 		rcu_read_unlock();
2023 		return;
2024 	}
2025 
2026 	flags = 0;
2027 
2028 	/* Block 26-tone RU OFDMA transmissions */
2029 	if (mvmvif->he_ru_2mhz_block)
2030 		flags |= STA_CTXT_HE_RU_2MHZ_BLOCK;
2031 
2032 	/* HTC flags */
2033 	if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[0] &
2034 	    IEEE80211_HE_MAC_CAP0_HTC_HE)
2035 		sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_SUPPORT);
2036 	if ((sta->deflink.he_cap.he_cap_elem.mac_cap_info[1] &
2037 	      IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION) ||
2038 	    (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &
2039 	      IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION)) {
2040 		u8 link_adap =
2041 			((sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &
2042 			  IEEE80211_HE_MAC_CAP2_LINK_ADAPTATION) << 1) +
2043 			 (sta->deflink.he_cap.he_cap_elem.mac_cap_info[1] &
2044 			  IEEE80211_HE_MAC_CAP1_LINK_ADAPTATION);
2045 
2046 		if (link_adap == 2)
2047 			sta_ctxt_cmd.htc_flags |=
2048 				cpu_to_le32(IWL_HE_HTC_LINK_ADAP_UNSOLICITED);
2049 		else if (link_adap == 3)
2050 			sta_ctxt_cmd.htc_flags |=
2051 				cpu_to_le32(IWL_HE_HTC_LINK_ADAP_BOTH);
2052 	}
2053 	if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] & IEEE80211_HE_MAC_CAP2_BSR)
2054 		sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BSR_SUPP);
2055 	if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[3] &
2056 	    IEEE80211_HE_MAC_CAP3_OMI_CONTROL)
2057 		sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_OMI_SUPP);
2058 	if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[4] & IEEE80211_HE_MAC_CAP4_BQR)
2059 		sta_ctxt_cmd.htc_flags |= cpu_to_le32(IWL_HE_HTC_BQR_SUPP);
2060 
2061 	/*
2062 	 * Initialize the PPE thresholds to "None" (7), as described in Table
2063 	 * 9-262ac of 80211.ax/D3.0.
2064 	 */
2065 	memset(&sta_ctxt_cmd.pkt_ext, IWL_HE_PKT_EXT_NONE,
2066 	       sizeof(sta_ctxt_cmd.pkt_ext));
2067 
2068 	/* If PPE Thresholds exist, parse them into a FW-familiar format. */
2069 	if (sta->deflink.he_cap.he_cap_elem.phy_cap_info[6] &
2070 		IEEE80211_HE_PHY_CAP6_PPE_THRESHOLD_PRESENT) {
2071 		iwl_mvm_set_pkt_ext_from_he_ppe(mvm, sta,
2072 						&sta_ctxt_cmd.pkt_ext);
2073 		flags |= STA_CTXT_HE_PACKET_EXT;
2074 	/* PPE Thresholds doesn't exist - set the API PPE values
2075 	* according to Common Nominal Packet Padding fiels. */
2076 	} else {
2077 		u8 nominal_padding =
2078 			u8_get_bits(sta->deflink.he_cap.he_cap_elem.phy_cap_info[9],
2079 				    IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_MASK);
2080 		if (nominal_padding != IEEE80211_HE_PHY_CAP9_NOMINAL_PKT_PADDING_RESERVED)
2081 			iwl_mvm_set_pkt_ext_from_nominal_padding(&sta_ctxt_cmd.pkt_ext,
2082 								 nominal_padding,
2083 								 &flags);
2084 	}
2085 
2086 	if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &
2087 	    IEEE80211_HE_MAC_CAP2_32BIT_BA_BITMAP)
2088 		flags |= STA_CTXT_HE_32BIT_BA_BITMAP;
2089 
2090 	if (sta->deflink.he_cap.he_cap_elem.mac_cap_info[2] &
2091 	    IEEE80211_HE_MAC_CAP2_ACK_EN)
2092 		flags |= STA_CTXT_HE_ACK_ENABLED;
2093 
2094 	rcu_read_unlock();
2095 
2096 	/* Mark MU EDCA as enabled, unless none detected on some AC */
2097 	flags |= STA_CTXT_HE_MU_EDCA_CW;
2098 	for (i = 0; i < IEEE80211_NUM_ACS; i++) {
2099 		struct ieee80211_he_mu_edca_param_ac_rec *mu_edca =
2100 			&mvmvif->queue_params[i].mu_edca_param_rec;
2101 		u8 ac = iwl_mvm_mac80211_ac_to_ucode_ac(i);
2102 
2103 		if (!mvmvif->queue_params[i].mu_edca) {
2104 			flags &= ~STA_CTXT_HE_MU_EDCA_CW;
2105 			break;
2106 		}
2107 
2108 		sta_ctxt_cmd.trig_based_txf[ac].cwmin =
2109 			cpu_to_le16(mu_edca->ecw_min_max & 0xf);
2110 		sta_ctxt_cmd.trig_based_txf[ac].cwmax =
2111 			cpu_to_le16((mu_edca->ecw_min_max & 0xf0) >> 4);
2112 		sta_ctxt_cmd.trig_based_txf[ac].aifsn =
2113 			cpu_to_le16(mu_edca->aifsn);
2114 		sta_ctxt_cmd.trig_based_txf[ac].mu_time =
2115 			cpu_to_le16(mu_edca->mu_edca_timer);
2116 	}
2117 
2118 
2119 	if (vif->bss_conf.uora_exists) {
2120 		flags |= STA_CTXT_HE_TRIG_RND_ALLOC;
2121 
2122 		sta_ctxt_cmd.rand_alloc_ecwmin =
2123 			vif->bss_conf.uora_ocw_range & 0x7;
2124 		sta_ctxt_cmd.rand_alloc_ecwmax =
2125 			(vif->bss_conf.uora_ocw_range >> 3) & 0x7;
2126 	}
2127 
2128 	if (own_he_cap && !(own_he_cap->he_cap_elem.mac_cap_info[2] &
2129 			    IEEE80211_HE_MAC_CAP2_ACK_EN))
2130 		flags |= STA_CTXT_HE_NIC_NOT_ACK_ENABLED;
2131 
2132 	if (vif->bss_conf.nontransmitted) {
2133 		flags |= STA_CTXT_HE_REF_BSSID_VALID;
2134 		ether_addr_copy(sta_ctxt_cmd.ref_bssid_addr,
2135 				vif->bss_conf.transmitter_bssid);
2136 		sta_ctxt_cmd.max_bssid_indicator =
2137 			vif->bss_conf.bssid_indicator;
2138 		sta_ctxt_cmd.bssid_index = vif->bss_conf.bssid_index;
2139 		sta_ctxt_cmd.ema_ap = vif->bss_conf.ema_ap;
2140 		sta_ctxt_cmd.profile_periodicity =
2141 			vif->bss_conf.profile_periodicity;
2142 	}
2143 
2144 	sta_ctxt_cmd.flags = cpu_to_le32(flags);
2145 
2146 	if (ver < 3) {
2147 		/* fields before pkt_ext */
2148 		BUILD_BUG_ON(offsetof(typeof(sta_ctxt_cmd), pkt_ext) !=
2149 			     offsetof(typeof(sta_ctxt_cmd_v2), pkt_ext));
2150 		memcpy(&sta_ctxt_cmd_v2, &sta_ctxt_cmd,
2151 		       offsetof(typeof(sta_ctxt_cmd), pkt_ext));
2152 
2153 		/* pkt_ext */
2154 		for (i = 0;
2155 		     i < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th);
2156 		     i++) {
2157 			u8 bw;
2158 
2159 			for (bw = 0;
2160 			     bw < ARRAY_SIZE(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i]);
2161 			     bw++) {
2162 				BUILD_BUG_ON(sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]) !=
2163 					     sizeof(sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw]));
2164 
2165 				memcpy(&sta_ctxt_cmd_v2.pkt_ext.pkt_ext_qam_th[i][bw],
2166 				       &sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw],
2167 				       sizeof(sta_ctxt_cmd.pkt_ext.pkt_ext_qam_th[i][bw]));
2168 			}
2169 		}
2170 
2171 		/* fields after pkt_ext */
2172 		BUILD_BUG_ON(sizeof(sta_ctxt_cmd) -
2173 			     offsetofend(typeof(sta_ctxt_cmd), pkt_ext) !=
2174 			     sizeof(sta_ctxt_cmd_v2) -
2175 			     offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext));
2176 		memcpy((u8 *)&sta_ctxt_cmd_v2 +
2177 				offsetofend(typeof(sta_ctxt_cmd_v2), pkt_ext),
2178 		       (u8 *)&sta_ctxt_cmd +
2179 				offsetofend(typeof(sta_ctxt_cmd), pkt_ext),
2180 		       sizeof(sta_ctxt_cmd) -
2181 				offsetofend(typeof(sta_ctxt_cmd), pkt_ext));
2182 		sta_ctxt_cmd_v2.reserved3 = 0;
2183 	}
2184 
2185 	if (iwl_mvm_send_cmd_pdu(mvm, cmd_id, 0, size, cmd))
2186 		IWL_ERR(mvm, "Failed to config FW to work HE!\n");
2187 }
2188 
2189 static void iwl_mvm_protect_assoc(struct iwl_mvm *mvm,
2190 				  struct ieee80211_vif *vif,
2191 				  u32 duration_override)
2192 {
2193 	u32 duration = IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS;
2194 	u32 min_duration = IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS;
2195 
2196 	if (duration_override > duration)
2197 		duration = duration_override;
2198 
2199 	/* Try really hard to protect the session and hear a beacon
2200 	 * The new session protection command allows us to protect the
2201 	 * session for a much longer time since the firmware will internally
2202 	 * create two events: a 300TU one with a very high priority that
2203 	 * won't be fragmented which should be enough for 99% of the cases,
2204 	 * and another one (which we configure here to be 900TU long) which
2205 	 * will have a slightly lower priority, but more importantly, can be
2206 	 * fragmented so that it'll allow other activities to run.
2207 	 */
2208 	if (fw_has_capa(&mvm->fw->ucode_capa,
2209 			IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD))
2210 		iwl_mvm_schedule_session_protection(mvm, vif, 900,
2211 						    min_duration, false);
2212 	else
2213 		iwl_mvm_protect_session(mvm, vif, duration,
2214 					min_duration, 500, false);
2215 }
2216 
2217 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm *mvm,
2218 					     struct ieee80211_vif *vif,
2219 					     struct ieee80211_bss_conf *bss_conf,
2220 					     u32 changes)
2221 {
2222 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2223 	int ret;
2224 
2225 	/*
2226 	 * Re-calculate the tsf id, as the leader-follower relations depend
2227 	 * on the beacon interval, which was not known when the station
2228 	 * interface was added.
2229 	 */
2230 	if (changes & BSS_CHANGED_ASSOC && bss_conf->assoc) {
2231 		if (vif->bss_conf.he_support &&
2232 		    !iwlwifi_mod_params.disable_11ax)
2233 			iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id);
2234 
2235 		iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2236 	}
2237 
2238 	/* Update MU EDCA params */
2239 	if (changes & BSS_CHANGED_QOS && mvmvif->associated &&
2240 	    bss_conf->assoc && vif->bss_conf.he_support &&
2241 	    !iwlwifi_mod_params.disable_11ax)
2242 		iwl_mvm_cfg_he_sta(mvm, vif, mvmvif->ap_sta_id);
2243 
2244 	/*
2245 	 * If we're not associated yet, take the (new) BSSID before associating
2246 	 * so the firmware knows. If we're already associated, then use the old
2247 	 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2248 	 * branch for disassociation below.
2249 	 */
2250 	if (changes & BSS_CHANGED_BSSID && !mvmvif->associated)
2251 		memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2252 
2253 	ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, mvmvif->bssid);
2254 	if (ret)
2255 		IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2256 
2257 	/* after sending it once, adopt mac80211 data */
2258 	memcpy(mvmvif->bssid, bss_conf->bssid, ETH_ALEN);
2259 	mvmvif->associated = bss_conf->assoc;
2260 
2261 	if (changes & BSS_CHANGED_ASSOC) {
2262 		if (bss_conf->assoc) {
2263 			/* clear statistics to get clean beacon counter */
2264 			iwl_mvm_request_statistics(mvm, true);
2265 			memset(&mvmvif->beacon_stats, 0,
2266 			       sizeof(mvmvif->beacon_stats));
2267 
2268 			/* add quota for this interface */
2269 			ret = iwl_mvm_update_quotas(mvm, true, NULL);
2270 			if (ret) {
2271 				IWL_ERR(mvm, "failed to update quotas\n");
2272 				return;
2273 			}
2274 
2275 			if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2276 				     &mvm->status) &&
2277 			    !fw_has_capa(&mvm->fw->ucode_capa,
2278 					 IWL_UCODE_TLV_CAPA_SESSION_PROT_CMD)) {
2279 				/*
2280 				 * If we're restarting then the firmware will
2281 				 * obviously have lost synchronisation with
2282 				 * the AP. It will attempt to synchronise by
2283 				 * itself, but we can make it more reliable by
2284 				 * scheduling a session protection time event.
2285 				 *
2286 				 * The firmware needs to receive a beacon to
2287 				 * catch up with synchronisation, use 110% of
2288 				 * the beacon interval.
2289 				 *
2290 				 * Set a large maximum delay to allow for more
2291 				 * than a single interface.
2292 				 *
2293 				 * For new firmware versions, rely on the
2294 				 * firmware. This is relevant for DCM scenarios
2295 				 * only anyway.
2296 				 */
2297 				u32 dur = (11 * vif->bss_conf.beacon_int) / 10;
2298 				iwl_mvm_protect_session(mvm, vif, dur, dur,
2299 							5 * dur, false);
2300 			} else if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2301 					     &mvm->status) &&
2302 				   !vif->bss_conf.dtim_period) {
2303 				/*
2304 				 * If we're not restarting and still haven't
2305 				 * heard a beacon (dtim period unknown) then
2306 				 * make sure we still have enough minimum time
2307 				 * remaining in the time event, since the auth
2308 				 * might actually have taken quite a while
2309 				 * (especially for SAE) and so the remaining
2310 				 * time could be small without us having heard
2311 				 * a beacon yet.
2312 				 */
2313 				iwl_mvm_protect_assoc(mvm, vif, 0);
2314 			}
2315 
2316 			iwl_mvm_sf_update(mvm, vif, false);
2317 			iwl_mvm_power_vif_assoc(mvm, vif);
2318 			if (vif->p2p) {
2319 				iwl_mvm_update_smps(mvm, vif,
2320 						    IWL_MVM_SMPS_REQ_PROT,
2321 						    IEEE80211_SMPS_DYNAMIC);
2322 			}
2323 		} else if (mvmvif->ap_sta_id != IWL_MVM_INVALID_STA) {
2324 			iwl_mvm_mei_host_disassociated(mvm);
2325 			/*
2326 			 * If update fails - SF might be running in associated
2327 			 * mode while disassociated - which is forbidden.
2328 			 */
2329 			ret = iwl_mvm_sf_update(mvm, vif, false);
2330 			WARN_ONCE(ret &&
2331 				  !test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
2332 					    &mvm->status),
2333 				  "Failed to update SF upon disassociation\n");
2334 
2335 			/*
2336 			 * If we get an assert during the connection (after the
2337 			 * station has been added, but before the vif is set
2338 			 * to associated), mac80211 will re-add the station and
2339 			 * then configure the vif. Since the vif is not
2340 			 * associated, we would remove the station here and
2341 			 * this would fail the recovery.
2342 			 */
2343 			if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART,
2344 				      &mvm->status)) {
2345 				/*
2346 				 * Remove AP station now that
2347 				 * the MAC is unassoc
2348 				 */
2349 				ret = iwl_mvm_rm_sta_id(mvm, vif,
2350 							mvmvif->ap_sta_id);
2351 				if (ret)
2352 					IWL_ERR(mvm,
2353 						"failed to remove AP station\n");
2354 
2355 				mvmvif->ap_sta_id = IWL_MVM_INVALID_STA;
2356 			}
2357 
2358 			/* remove quota for this interface */
2359 			ret = iwl_mvm_update_quotas(mvm, false, NULL);
2360 			if (ret)
2361 				IWL_ERR(mvm, "failed to update quotas\n");
2362 
2363 			/* this will take the cleared BSSID from bss_conf */
2364 			ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
2365 			if (ret)
2366 				IWL_ERR(mvm,
2367 					"failed to update MAC %pM (clear after unassoc)\n",
2368 					vif->addr);
2369 		}
2370 
2371 		/*
2372 		 * The firmware tracks the MU-MIMO group on its own.
2373 		 * However, on HW restart we should restore this data.
2374 		 */
2375 		if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2376 		    (changes & BSS_CHANGED_MU_GROUPS) && vif->mu_mimo_owner) {
2377 			ret = iwl_mvm_update_mu_groups(mvm, vif);
2378 			if (ret)
2379 				IWL_ERR(mvm,
2380 					"failed to update VHT MU_MIMO groups\n");
2381 		}
2382 
2383 		iwl_mvm_recalc_multicast(mvm);
2384 
2385 		/* reset rssi values */
2386 		mvmvif->bf_data.ave_beacon_signal = 0;
2387 
2388 		iwl_mvm_bt_coex_vif_change(mvm);
2389 		iwl_mvm_update_smps(mvm, vif, IWL_MVM_SMPS_REQ_TT,
2390 				    IEEE80211_SMPS_AUTOMATIC);
2391 		if (fw_has_capa(&mvm->fw->ucode_capa,
2392 				IWL_UCODE_TLV_CAPA_UMAC_SCAN))
2393 			iwl_mvm_config_scan(mvm);
2394 	}
2395 
2396 	if (changes & BSS_CHANGED_BEACON_INFO) {
2397 		/*
2398 		 * We received a beacon from the associated AP so
2399 		 * remove the session protection.
2400 		 */
2401 		iwl_mvm_stop_session_protection(mvm, vif);
2402 
2403 		iwl_mvm_sf_update(mvm, vif, false);
2404 		WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
2405 	}
2406 
2407 	if (changes & (BSS_CHANGED_PS | BSS_CHANGED_P2P_PS | BSS_CHANGED_QOS |
2408 		       /*
2409 			* Send power command on every beacon change,
2410 			* because we may have not enabled beacon abort yet.
2411 			*/
2412 		       BSS_CHANGED_BEACON_INFO)) {
2413 		ret = iwl_mvm_power_update_mac(mvm);
2414 		if (ret)
2415 			IWL_ERR(mvm, "failed to update power mode\n");
2416 	}
2417 
2418 	if (changes & BSS_CHANGED_CQM) {
2419 		IWL_DEBUG_MAC80211(mvm, "cqm info_changed\n");
2420 		/* reset cqm events tracking */
2421 		mvmvif->bf_data.last_cqm_event = 0;
2422 		if (mvmvif->bf_data.bf_enabled) {
2423 			ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
2424 			if (ret)
2425 				IWL_ERR(mvm,
2426 					"failed to update CQM thresholds\n");
2427 		}
2428 	}
2429 
2430 	if (changes & BSS_CHANGED_BANDWIDTH)
2431 		iwl_mvm_apply_fw_smps_request(vif);
2432 }
2433 
2434 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw *hw,
2435 				 struct ieee80211_vif *vif)
2436 {
2437 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2438 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2439 	int ret, i;
2440 
2441 	mutex_lock(&mvm->mutex);
2442 
2443 	/* Send the beacon template */
2444 	ret = iwl_mvm_mac_ctxt_beacon_changed(mvm, vif);
2445 	if (ret)
2446 		goto out_unlock;
2447 
2448 	/*
2449 	 * Re-calculate the tsf id, as the leader-follower relations depend on
2450 	 * the beacon interval, which was not known when the AP interface
2451 	 * was added.
2452 	 */
2453 	if (vif->type == NL80211_IFTYPE_AP)
2454 		iwl_mvm_mac_ctxt_recalc_tsf_id(mvm, vif);
2455 
2456 	mvmvif->ap_assoc_sta_count = 0;
2457 
2458 	/* Add the mac context */
2459 	ret = iwl_mvm_mac_ctxt_add(mvm, vif);
2460 	if (ret)
2461 		goto out_unlock;
2462 
2463 	/* Perform the binding */
2464 	ret = iwl_mvm_binding_add_vif(mvm, vif);
2465 	if (ret)
2466 		goto out_remove;
2467 
2468 	/*
2469 	 * This is not very nice, but the simplest:
2470 	 * For older FWs adding the mcast sta before the bcast station may
2471 	 * cause assert 0x2b00.
2472 	 * This is fixed in later FW so make the order of removal depend on
2473 	 * the TLV
2474 	 */
2475 	if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE)) {
2476 		ret = iwl_mvm_add_mcast_sta(mvm, vif);
2477 		if (ret)
2478 			goto out_unbind;
2479 		/*
2480 		 * Send the bcast station. At this stage the TBTT and DTIM time
2481 		 * events are added and applied to the scheduler
2482 		 */
2483 		ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2484 		if (ret) {
2485 			iwl_mvm_rm_mcast_sta(mvm, vif);
2486 			goto out_unbind;
2487 		}
2488 	} else {
2489 		/*
2490 		 * Send the bcast station. At this stage the TBTT and DTIM time
2491 		 * events are added and applied to the scheduler
2492 		 */
2493 		ret = iwl_mvm_send_add_bcast_sta(mvm, vif);
2494 		if (ret)
2495 			goto out_unbind;
2496 		ret = iwl_mvm_add_mcast_sta(mvm, vif);
2497 		if (ret) {
2498 			iwl_mvm_send_rm_bcast_sta(mvm, vif);
2499 			goto out_unbind;
2500 		}
2501 	}
2502 
2503 	/* must be set before quota calculations */
2504 	mvmvif->ap_ibss_active = true;
2505 
2506 	/* send all the early keys to the device now */
2507 	for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
2508 		struct ieee80211_key_conf *key = mvmvif->ap_early_keys[i];
2509 
2510 		if (!key)
2511 			continue;
2512 
2513 		mvmvif->ap_early_keys[i] = NULL;
2514 
2515 		ret = __iwl_mvm_mac_set_key(hw, SET_KEY, vif, NULL, key);
2516 		if (ret)
2517 			goto out_quota_failed;
2518 	}
2519 
2520 	if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
2521 		iwl_mvm_vif_set_low_latency(mvmvif, true,
2522 					    LOW_LATENCY_VIF_TYPE);
2523 		iwl_mvm_send_low_latency_cmd(mvm, true, mvmvif->id);
2524 	}
2525 
2526 	/* power updated needs to be done before quotas */
2527 	iwl_mvm_power_update_mac(mvm);
2528 
2529 	ret = iwl_mvm_update_quotas(mvm, false, NULL);
2530 	if (ret)
2531 		goto out_quota_failed;
2532 
2533 	/* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2534 	if (vif->p2p && mvm->p2p_device_vif)
2535 		iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2536 
2537 	iwl_mvm_bt_coex_vif_change(mvm);
2538 
2539 	/* we don't support TDLS during DCM */
2540 	if (iwl_mvm_phy_ctx_count(mvm) > 1)
2541 		iwl_mvm_teardown_tdls_peers(mvm);
2542 
2543 	iwl_mvm_ftm_restart_responder(mvm, vif);
2544 
2545 	goto out_unlock;
2546 
2547 out_quota_failed:
2548 	iwl_mvm_power_update_mac(mvm);
2549 	mvmvif->ap_ibss_active = false;
2550 	iwl_mvm_send_rm_bcast_sta(mvm, vif);
2551 	iwl_mvm_rm_mcast_sta(mvm, vif);
2552 out_unbind:
2553 	iwl_mvm_binding_remove_vif(mvm, vif);
2554 out_remove:
2555 	iwl_mvm_mac_ctxt_remove(mvm, vif);
2556 out_unlock:
2557 	mutex_unlock(&mvm->mutex);
2558 	return ret;
2559 }
2560 
2561 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw *hw,
2562 				 struct ieee80211_vif *vif)
2563 {
2564 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2565 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2566 
2567 	iwl_mvm_prepare_mac_removal(mvm, vif);
2568 
2569 	mutex_lock(&mvm->mutex);
2570 
2571 	/* Handle AP stop while in CSA */
2572 	if (rcu_access_pointer(mvm->csa_vif) == vif) {
2573 		iwl_mvm_remove_time_event(mvm, mvmvif,
2574 					  &mvmvif->time_event_data);
2575 		RCU_INIT_POINTER(mvm->csa_vif, NULL);
2576 		mvmvif->csa_countdown = false;
2577 	}
2578 
2579 	if (rcu_access_pointer(mvm->csa_tx_blocked_vif) == vif) {
2580 		RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL);
2581 		mvm->csa_tx_block_bcn_timeout = 0;
2582 	}
2583 
2584 	mvmvif->ap_ibss_active = false;
2585 	mvm->ap_last_beacon_gp2 = 0;
2586 
2587 	if (vif->type == NL80211_IFTYPE_AP && !vif->p2p) {
2588 		iwl_mvm_vif_set_low_latency(mvmvif, false,
2589 					    LOW_LATENCY_VIF_TYPE);
2590 		iwl_mvm_send_low_latency_cmd(mvm, false,  mvmvif->id);
2591 	}
2592 
2593 	iwl_mvm_bt_coex_vif_change(mvm);
2594 
2595 	/* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2596 	if (vif->p2p && mvm->p2p_device_vif)
2597 		iwl_mvm_mac_ctxt_changed(mvm, mvm->p2p_device_vif, false, NULL);
2598 
2599 	iwl_mvm_update_quotas(mvm, false, NULL);
2600 
2601 	iwl_mvm_ftm_responder_clear(mvm, vif);
2602 
2603 	/*
2604 	 * This is not very nice, but the simplest:
2605 	 * For older FWs removing the mcast sta before the bcast station may
2606 	 * cause assert 0x2b00.
2607 	 * This is fixed in later FW (which will stop beaconing when removing
2608 	 * bcast station).
2609 	 * So make the order of removal depend on the TLV
2610 	 */
2611 	if (!fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2612 		iwl_mvm_rm_mcast_sta(mvm, vif);
2613 	iwl_mvm_send_rm_bcast_sta(mvm, vif);
2614 	if (fw_has_api(&mvm->fw->ucode_capa, IWL_UCODE_TLV_API_STA_TYPE))
2615 		iwl_mvm_rm_mcast_sta(mvm, vif);
2616 	iwl_mvm_binding_remove_vif(mvm, vif);
2617 
2618 	iwl_mvm_power_update_mac(mvm);
2619 
2620 	iwl_mvm_mac_ctxt_remove(mvm, vif);
2621 
2622 	mutex_unlock(&mvm->mutex);
2623 }
2624 
2625 static void
2626 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm *mvm,
2627 				 struct ieee80211_vif *vif,
2628 				 struct ieee80211_bss_conf *bss_conf,
2629 				 u32 changes)
2630 {
2631 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2632 
2633 	/* Changes will be applied when the AP/IBSS is started */
2634 	if (!mvmvif->ap_ibss_active)
2635 		return;
2636 
2637 	if (changes & (BSS_CHANGED_ERP_CTS_PROT | BSS_CHANGED_HT |
2638 		       BSS_CHANGED_BANDWIDTH | BSS_CHANGED_QOS) &&
2639 	    iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL))
2640 		IWL_ERR(mvm, "failed to update MAC %pM\n", vif->addr);
2641 
2642 	/* Need to send a new beacon template to the FW */
2643 	if (changes & BSS_CHANGED_BEACON &&
2644 	    iwl_mvm_mac_ctxt_beacon_changed(mvm, vif))
2645 		IWL_WARN(mvm, "Failed updating beacon data\n");
2646 
2647 	if (changes & BSS_CHANGED_FTM_RESPONDER) {
2648 		int ret = iwl_mvm_ftm_start_responder(mvm, vif);
2649 
2650 		if (ret)
2651 			IWL_WARN(mvm, "Failed to enable FTM responder (%d)\n",
2652 				 ret);
2653 	}
2654 
2655 }
2656 
2657 static void iwl_mvm_bss_info_changed(struct ieee80211_hw *hw,
2658 				     struct ieee80211_vif *vif,
2659 				     struct ieee80211_bss_conf *bss_conf,
2660 				     u32 changes)
2661 {
2662 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2663 
2664 	mutex_lock(&mvm->mutex);
2665 
2666 	if (changes & BSS_CHANGED_IDLE && !bss_conf->idle)
2667 		iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
2668 
2669 	switch (vif->type) {
2670 	case NL80211_IFTYPE_STATION:
2671 		iwl_mvm_bss_info_changed_station(mvm, vif, bss_conf, changes);
2672 		break;
2673 	case NL80211_IFTYPE_AP:
2674 	case NL80211_IFTYPE_ADHOC:
2675 		iwl_mvm_bss_info_changed_ap_ibss(mvm, vif, bss_conf, changes);
2676 		break;
2677 	case NL80211_IFTYPE_MONITOR:
2678 		if (changes & BSS_CHANGED_MU_GROUPS)
2679 			iwl_mvm_update_mu_groups(mvm, vif);
2680 		break;
2681 	default:
2682 		/* shouldn't happen */
2683 		WARN_ON_ONCE(1);
2684 	}
2685 
2686 	if (changes & BSS_CHANGED_TXPOWER) {
2687 		IWL_DEBUG_CALIB(mvm, "Changing TX Power to %d dBm\n",
2688 				bss_conf->txpower);
2689 		iwl_mvm_set_tx_power(mvm, vif, bss_conf->txpower);
2690 	}
2691 
2692 	mutex_unlock(&mvm->mutex);
2693 }
2694 
2695 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw *hw,
2696 			       struct ieee80211_vif *vif,
2697 			       struct ieee80211_scan_request *hw_req)
2698 {
2699 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2700 	int ret;
2701 
2702 	if (hw_req->req.n_channels == 0 ||
2703 	    hw_req->req.n_channels > mvm->fw->ucode_capa.n_scan_channels)
2704 		return -EINVAL;
2705 
2706 	mutex_lock(&mvm->mutex);
2707 	ret = iwl_mvm_reg_scan_start(mvm, vif, &hw_req->req, &hw_req->ies);
2708 	mutex_unlock(&mvm->mutex);
2709 
2710 	return ret;
2711 }
2712 
2713 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw *hw,
2714 				       struct ieee80211_vif *vif)
2715 {
2716 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2717 
2718 	mutex_lock(&mvm->mutex);
2719 
2720 	/* Due to a race condition, it's possible that mac80211 asks
2721 	 * us to stop a hw_scan when it's already stopped.  This can
2722 	 * happen, for instance, if we stopped the scan ourselves,
2723 	 * called ieee80211_scan_completed() and the userspace called
2724 	 * cancel scan scan before ieee80211_scan_work() could run.
2725 	 * To handle that, simply return if the scan is not running.
2726 	*/
2727 	if (mvm->scan_status & IWL_MVM_SCAN_REGULAR)
2728 		iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
2729 
2730 	mutex_unlock(&mvm->mutex);
2731 }
2732 
2733 static void
2734 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw *hw,
2735 				  struct ieee80211_sta *sta, u16 tids,
2736 				  int num_frames,
2737 				  enum ieee80211_frame_release_type reason,
2738 				  bool more_data)
2739 {
2740 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2741 
2742 	/* Called when we need to transmit (a) frame(s) from mac80211 */
2743 
2744 	iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2745 					  tids, more_data, false);
2746 }
2747 
2748 static void
2749 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw *hw,
2750 				    struct ieee80211_sta *sta, u16 tids,
2751 				    int num_frames,
2752 				    enum ieee80211_frame_release_type reason,
2753 				    bool more_data)
2754 {
2755 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2756 
2757 	/* Called when we need to transmit (a) frame(s) from agg or dqa queue */
2758 
2759 	iwl_mvm_sta_modify_sleep_tx_count(mvm, sta, reason, num_frames,
2760 					  tids, more_data, true);
2761 }
2762 
2763 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2764 				     enum sta_notify_cmd cmd,
2765 				     struct ieee80211_sta *sta)
2766 {
2767 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2768 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
2769 	unsigned long txqs = 0, tids = 0;
2770 	int tid;
2771 
2772 	/*
2773 	 * If we have TVQM then we get too high queue numbers - luckily
2774 	 * we really shouldn't get here with that because such hardware
2775 	 * should have firmware supporting buffer station offload.
2776 	 */
2777 	if (WARN_ON(iwl_mvm_has_new_tx_api(mvm)))
2778 		return;
2779 
2780 	spin_lock_bh(&mvmsta->lock);
2781 	for (tid = 0; tid < ARRAY_SIZE(mvmsta->tid_data); tid++) {
2782 		struct iwl_mvm_tid_data *tid_data = &mvmsta->tid_data[tid];
2783 
2784 		if (tid_data->txq_id == IWL_MVM_INVALID_QUEUE)
2785 			continue;
2786 
2787 		__set_bit(tid_data->txq_id, &txqs);
2788 
2789 		if (iwl_mvm_tid_queued(mvm, tid_data) == 0)
2790 			continue;
2791 
2792 		__set_bit(tid, &tids);
2793 	}
2794 
2795 	switch (cmd) {
2796 	case STA_NOTIFY_SLEEP:
2797 		for_each_set_bit(tid, &tids, IWL_MAX_TID_COUNT)
2798 			ieee80211_sta_set_buffered(sta, tid, true);
2799 
2800 		if (txqs)
2801 			iwl_trans_freeze_txq_timer(mvm->trans, txqs, true);
2802 		/*
2803 		 * The fw updates the STA to be asleep. Tx packets on the Tx
2804 		 * queues to this station will not be transmitted. The fw will
2805 		 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2806 		 */
2807 		break;
2808 	case STA_NOTIFY_AWAKE:
2809 		if (WARN_ON(mvmsta->sta_id == IWL_MVM_INVALID_STA))
2810 			break;
2811 
2812 		if (txqs)
2813 			iwl_trans_freeze_txq_timer(mvm->trans, txqs, false);
2814 		iwl_mvm_sta_modify_ps_wake(mvm, sta);
2815 		break;
2816 	default:
2817 		break;
2818 	}
2819 	spin_unlock_bh(&mvmsta->lock);
2820 }
2821 
2822 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw *hw,
2823 				   struct ieee80211_vif *vif,
2824 				   enum sta_notify_cmd cmd,
2825 				   struct ieee80211_sta *sta)
2826 {
2827 	__iwl_mvm_mac_sta_notify(hw, cmd, sta);
2828 }
2829 
2830 void iwl_mvm_sta_pm_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb)
2831 {
2832 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
2833 	struct iwl_mvm_pm_state_notification *notif = (void *)pkt->data;
2834 	struct ieee80211_sta *sta;
2835 	struct iwl_mvm_sta *mvmsta;
2836 	bool sleeping = (notif->type != IWL_MVM_PM_EVENT_AWAKE);
2837 
2838 	if (WARN_ON(notif->sta_id >= mvm->fw->ucode_capa.num_stations))
2839 		return;
2840 
2841 	rcu_read_lock();
2842 	sta = rcu_dereference(mvm->fw_id_to_mac_id[notif->sta_id]);
2843 	if (WARN_ON(IS_ERR_OR_NULL(sta))) {
2844 		rcu_read_unlock();
2845 		return;
2846 	}
2847 
2848 	mvmsta = iwl_mvm_sta_from_mac80211(sta);
2849 
2850 	if (!mvmsta->vif ||
2851 	    mvmsta->vif->type != NL80211_IFTYPE_AP) {
2852 		rcu_read_unlock();
2853 		return;
2854 	}
2855 
2856 	if (mvmsta->sleeping != sleeping) {
2857 		mvmsta->sleeping = sleeping;
2858 		__iwl_mvm_mac_sta_notify(mvm->hw,
2859 			sleeping ? STA_NOTIFY_SLEEP : STA_NOTIFY_AWAKE,
2860 			sta);
2861 		ieee80211_sta_ps_transition(sta, sleeping);
2862 	}
2863 
2864 	if (sleeping) {
2865 		switch (notif->type) {
2866 		case IWL_MVM_PM_EVENT_AWAKE:
2867 		case IWL_MVM_PM_EVENT_ASLEEP:
2868 			break;
2869 		case IWL_MVM_PM_EVENT_UAPSD:
2870 			ieee80211_sta_uapsd_trigger(sta, IEEE80211_NUM_TIDS);
2871 			break;
2872 		case IWL_MVM_PM_EVENT_PS_POLL:
2873 			ieee80211_sta_pspoll(sta);
2874 			break;
2875 		default:
2876 			break;
2877 		}
2878 	}
2879 
2880 	rcu_read_unlock();
2881 }
2882 
2883 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw *hw,
2884 				       struct ieee80211_vif *vif,
2885 				       struct ieee80211_sta *sta)
2886 {
2887 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2888 	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
2889 
2890 	/*
2891 	 * This is called before mac80211 does RCU synchronisation,
2892 	 * so here we already invalidate our internal RCU-protected
2893 	 * station pointer. The rest of the code will thus no longer
2894 	 * be able to find the station this way, and we don't rely
2895 	 * on further RCU synchronisation after the sta_state()
2896 	 * callback deleted the station.
2897 	 */
2898 	mutex_lock(&mvm->mutex);
2899 	if (sta == rcu_access_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id]))
2900 		rcu_assign_pointer(mvm->fw_id_to_mac_id[mvm_sta->sta_id],
2901 				   ERR_PTR(-ENOENT));
2902 
2903 	mutex_unlock(&mvm->mutex);
2904 }
2905 
2906 static void iwl_mvm_check_uapsd(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
2907 				const u8 *bssid)
2908 {
2909 	int i;
2910 
2911 	if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
2912 		struct iwl_mvm_tcm_mac *mdata;
2913 
2914 		mdata = &mvm->tcm.data[iwl_mvm_vif_from_mac80211(vif)->id];
2915 		ewma_rate_init(&mdata->uapsd_nonagg_detect.rate);
2916 		mdata->opened_rx_ba_sessions = false;
2917 	}
2918 
2919 	if (!(mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT))
2920 		return;
2921 
2922 	if (vif->p2p && !iwl_mvm_is_p2p_scm_uapsd_supported(mvm)) {
2923 		vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2924 		return;
2925 	}
2926 
2927 	if (!vif->p2p &&
2928 	    (iwlwifi_mod_params.uapsd_disable & IWL_DISABLE_UAPSD_BSS)) {
2929 		vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2930 		return;
2931 	}
2932 
2933 	for (i = 0; i < IWL_MVM_UAPSD_NOAGG_LIST_LEN; i++) {
2934 		if (ether_addr_equal(mvm->uapsd_noagg_bssids[i].addr, bssid)) {
2935 			vif->driver_flags &= ~IEEE80211_VIF_SUPPORTS_UAPSD;
2936 			return;
2937 		}
2938 	}
2939 
2940 	vif->driver_flags |= IEEE80211_VIF_SUPPORTS_UAPSD;
2941 }
2942 
2943 static void
2944 iwl_mvm_tdls_check_trigger(struct iwl_mvm *mvm,
2945 			   struct ieee80211_vif *vif, u8 *peer_addr,
2946 			   enum nl80211_tdls_operation action)
2947 {
2948 	struct iwl_fw_dbg_trigger_tlv *trig;
2949 	struct iwl_fw_dbg_trigger_tdls *tdls_trig;
2950 
2951 	trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
2952 				     FW_DBG_TRIGGER_TDLS);
2953 	if (!trig)
2954 		return;
2955 
2956 	tdls_trig = (void *)trig->data;
2957 
2958 	if (!(tdls_trig->action_bitmap & BIT(action)))
2959 		return;
2960 
2961 	if (tdls_trig->peer_mode &&
2962 	    memcmp(tdls_trig->peer, peer_addr, ETH_ALEN) != 0)
2963 		return;
2964 
2965 	iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
2966 				"TDLS event occurred, peer %pM, action %d",
2967 				peer_addr, action);
2968 }
2969 
2970 struct iwl_mvm_he_obss_narrow_bw_ru_data {
2971 	bool tolerated;
2972 };
2973 
2974 static void iwl_mvm_check_he_obss_narrow_bw_ru_iter(struct wiphy *wiphy,
2975 						    struct cfg80211_bss *bss,
2976 						    void *_data)
2977 {
2978 	struct iwl_mvm_he_obss_narrow_bw_ru_data *data = _data;
2979 	const struct cfg80211_bss_ies *ies;
2980 	const struct element *elem;
2981 
2982 	rcu_read_lock();
2983 	ies = rcu_dereference(bss->ies);
2984 	elem = cfg80211_find_elem(WLAN_EID_EXT_CAPABILITY, ies->data,
2985 				  ies->len);
2986 
2987 	if (!elem || elem->datalen < 10 ||
2988 	    !(elem->data[10] &
2989 	      WLAN_EXT_CAPA10_OBSS_NARROW_BW_RU_TOLERANCE_SUPPORT)) {
2990 		data->tolerated = false;
2991 	}
2992 	rcu_read_unlock();
2993 }
2994 
2995 static void iwl_mvm_check_he_obss_narrow_bw_ru(struct ieee80211_hw *hw,
2996 					       struct ieee80211_vif *vif)
2997 {
2998 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2999 	struct iwl_mvm_he_obss_narrow_bw_ru_data iter_data = {
3000 		.tolerated = true,
3001 	};
3002 
3003 	if (!(vif->bss_conf.chandef.chan->flags & IEEE80211_CHAN_RADAR)) {
3004 		mvmvif->he_ru_2mhz_block = false;
3005 		return;
3006 	}
3007 
3008 	cfg80211_bss_iter(hw->wiphy, &vif->bss_conf.chandef,
3009 			  iwl_mvm_check_he_obss_narrow_bw_ru_iter,
3010 			  &iter_data);
3011 
3012 	/*
3013 	 * If there is at least one AP on radar channel that cannot
3014 	 * tolerate 26-tone RU UL OFDMA transmissions using HE TB PPDU.
3015 	 */
3016 	mvmvif->he_ru_2mhz_block = !iter_data.tolerated;
3017 }
3018 
3019 static void iwl_mvm_reset_cca_40mhz_workaround(struct iwl_mvm *mvm,
3020 					       struct ieee80211_vif *vif)
3021 {
3022 	struct ieee80211_supported_band *sband;
3023 	const struct ieee80211_sta_he_cap *he_cap;
3024 
3025 	if (vif->type != NL80211_IFTYPE_STATION)
3026 		return;
3027 
3028 	if (!mvm->cca_40mhz_workaround)
3029 		return;
3030 
3031 	/* decrement and check that we reached zero */
3032 	mvm->cca_40mhz_workaround--;
3033 	if (mvm->cca_40mhz_workaround)
3034 		return;
3035 
3036 	sband = mvm->hw->wiphy->bands[NL80211_BAND_2GHZ];
3037 
3038 	sband->ht_cap.cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
3039 
3040 	he_cap = ieee80211_get_he_iftype_cap(sband,
3041 					     ieee80211_vif_type_p2p(vif));
3042 
3043 	if (he_cap) {
3044 		/* we know that ours is writable */
3045 		struct ieee80211_sta_he_cap *he = (void *)(uintptr_t)he_cap;
3046 
3047 		he->he_cap_elem.phy_cap_info[0] |=
3048 			IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_40MHZ_IN_2G;
3049 	}
3050 }
3051 
3052 static void iwl_mvm_mei_host_associated(struct iwl_mvm *mvm,
3053 					struct ieee80211_vif *vif,
3054 					struct iwl_mvm_sta *mvm_sta)
3055 {
3056 #if IS_ENABLED(CONFIG_IWLMEI)
3057 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3058 	struct iwl_mei_conn_info conn_info = {
3059 		.ssid_len = vif->bss_conf.ssid_len,
3060 		.channel = vif->bss_conf.chandef.chan->hw_value,
3061 	};
3062 
3063 	if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
3064 		return;
3065 
3066 	if (!mvm->mei_registered)
3067 		return;
3068 
3069 	switch (mvm_sta->pairwise_cipher) {
3070 	case WLAN_CIPHER_SUITE_CCMP:
3071 		conn_info.pairwise_cipher = IWL_MEI_CIPHER_CCMP;
3072 		break;
3073 	case WLAN_CIPHER_SUITE_GCMP:
3074 		conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP;
3075 		break;
3076 	case WLAN_CIPHER_SUITE_GCMP_256:
3077 		conn_info.pairwise_cipher = IWL_MEI_CIPHER_GCMP_256;
3078 		break;
3079 	case 0:
3080 		/* open profile */
3081 		break;
3082 	default:
3083 		/* cipher not supported, don't send anything to iwlmei */
3084 		return;
3085 	}
3086 
3087 	switch (mvmvif->rekey_data.akm) {
3088 	case WLAN_AKM_SUITE_SAE & 0xff:
3089 		conn_info.auth_mode = IWL_MEI_AKM_AUTH_SAE;
3090 		break;
3091 	case WLAN_AKM_SUITE_PSK & 0xff:
3092 		conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA_PSK;
3093 		break;
3094 	case WLAN_AKM_SUITE_8021X & 0xff:
3095 		conn_info.auth_mode = IWL_MEI_AKM_AUTH_RSNA;
3096 		break;
3097 	case 0:
3098 		/* open profile */
3099 		conn_info.auth_mode = IWL_MEI_AKM_AUTH_OPEN;
3100 		break;
3101 	default:
3102 		/* auth method / AKM not supported */
3103 		/* TODO: All the FT vesions of these? */
3104 		return;
3105 	}
3106 
3107 	memcpy(conn_info.ssid, vif->bss_conf.ssid, vif->bss_conf.ssid_len);
3108 	memcpy(conn_info.bssid,  vif->bss_conf.bssid, ETH_ALEN);
3109 
3110 	/* TODO: add support for collocated AP data */
3111 	iwl_mei_host_associated(&conn_info, NULL);
3112 #endif
3113 }
3114 
3115 static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
3116 				 struct ieee80211_vif *vif,
3117 				 struct ieee80211_sta *sta,
3118 				 enum ieee80211_sta_state old_state,
3119 				 enum ieee80211_sta_state new_state)
3120 {
3121 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3122 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3123 	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
3124 	int ret;
3125 
3126 	IWL_DEBUG_MAC80211(mvm, "station %pM state change %d->%d\n",
3127 			   sta->addr, old_state, new_state);
3128 
3129 	/* this would be a mac80211 bug ... but don't crash */
3130 	if (WARN_ON_ONCE(!mvmvif->phy_ctxt))
3131 		return test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) ? 0 : -EINVAL;
3132 
3133 	/*
3134 	 * If we are in a STA removal flow and in DQA mode:
3135 	 *
3136 	 * This is after the sync_rcu part, so the queues have already been
3137 	 * flushed. No more TXs on their way in mac80211's path, and no more in
3138 	 * the queues.
3139 	 * Also, we won't be getting any new TX frames for this station.
3140 	 * What we might have are deferred TX frames that need to be taken care
3141 	 * of.
3142 	 *
3143 	 * Drop any still-queued deferred-frame before removing the STA, and
3144 	 * make sure the worker is no longer handling frames for this STA.
3145 	 */
3146 	if (old_state == IEEE80211_STA_NONE &&
3147 	    new_state == IEEE80211_STA_NOTEXIST) {
3148 		flush_work(&mvm->add_stream_wk);
3149 
3150 		/*
3151 		 * No need to make sure deferred TX indication is off since the
3152 		 * worker will already remove it if it was on
3153 		 */
3154 
3155 		/*
3156 		 * Additionally, reset the 40 MHz capability if we disconnected
3157 		 * from the AP now.
3158 		 */
3159 		iwl_mvm_reset_cca_40mhz_workaround(mvm, vif);
3160 	}
3161 
3162 	mutex_lock(&mvm->mutex);
3163 	/* track whether or not the station is associated */
3164 	mvm_sta->sta_state = new_state;
3165 
3166 	if (old_state == IEEE80211_STA_NOTEXIST &&
3167 	    new_state == IEEE80211_STA_NONE) {
3168 		/*
3169 		 * Firmware bug - it'll crash if the beacon interval is less
3170 		 * than 16. We can't avoid connecting at all, so refuse the
3171 		 * station state change, this will cause mac80211 to abandon
3172 		 * attempts to connect to this AP, and eventually wpa_s will
3173 		 * blocklist the AP...
3174 		 */
3175 		if (vif->type == NL80211_IFTYPE_STATION &&
3176 		    vif->bss_conf.beacon_int < 16) {
3177 			IWL_ERR(mvm,
3178 				"AP %pM beacon interval is %d, refusing due to firmware bug!\n",
3179 				sta->addr, vif->bss_conf.beacon_int);
3180 			ret = -EINVAL;
3181 			goto out_unlock;
3182 		}
3183 
3184 		if (vif->type == NL80211_IFTYPE_STATION)
3185 			vif->bss_conf.he_support = sta->deflink.he_cap.has_he;
3186 
3187 		if (sta->tdls &&
3188 		    (vif->p2p ||
3189 		     iwl_mvm_tdls_sta_count(mvm, NULL) ==
3190 						IWL_MVM_TDLS_STA_COUNT ||
3191 		     iwl_mvm_phy_ctx_count(mvm) > 1)) {
3192 			IWL_DEBUG_MAC80211(mvm, "refusing TDLS sta\n");
3193 			ret = -EBUSY;
3194 			goto out_unlock;
3195 		}
3196 
3197 		ret = iwl_mvm_add_sta(mvm, vif, sta);
3198 		if (sta->tdls && ret == 0) {
3199 			iwl_mvm_recalc_tdls_state(mvm, vif, true);
3200 			iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3201 						   NL80211_TDLS_SETUP);
3202 		}
3203 
3204 		sta->max_rc_amsdu_len = 1;
3205 	} else if (old_state == IEEE80211_STA_NONE &&
3206 		   new_state == IEEE80211_STA_AUTH) {
3207 		/*
3208 		 * EBS may be disabled due to previous failures reported by FW.
3209 		 * Reset EBS status here assuming environment has been changed.
3210 		 */
3211 		mvm->last_ebs_successful = true;
3212 		iwl_mvm_check_uapsd(mvm, vif, sta->addr);
3213 		ret = 0;
3214 	} else if (old_state == IEEE80211_STA_AUTH &&
3215 		   new_state == IEEE80211_STA_ASSOC) {
3216 		if (vif->type == NL80211_IFTYPE_AP) {
3217 			vif->bss_conf.he_support = sta->deflink.he_cap.has_he;
3218 			mvmvif->ap_assoc_sta_count++;
3219 			iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3220 			if (vif->bss_conf.he_support &&
3221 			    !iwlwifi_mod_params.disable_11ax)
3222 				iwl_mvm_cfg_he_sta(mvm, vif, mvm_sta->sta_id);
3223 		} else if (vif->type == NL80211_IFTYPE_STATION) {
3224 			vif->bss_conf.he_support = sta->deflink.he_cap.has_he;
3225 
3226 			mvmvif->he_ru_2mhz_block = false;
3227 			if (sta->deflink.he_cap.has_he)
3228 				iwl_mvm_check_he_obss_narrow_bw_ru(hw, vif);
3229 
3230 			iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3231 		}
3232 
3233 		iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
3234 				     false);
3235 		ret = iwl_mvm_update_sta(mvm, vif, sta);
3236 	} else if (old_state == IEEE80211_STA_ASSOC &&
3237 		   new_state == IEEE80211_STA_AUTHORIZED) {
3238 		ret = 0;
3239 
3240 		/* we don't support TDLS during DCM */
3241 		if (iwl_mvm_phy_ctx_count(mvm) > 1)
3242 			iwl_mvm_teardown_tdls_peers(mvm);
3243 
3244 		if (sta->tdls) {
3245 			iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3246 						   NL80211_TDLS_ENABLE_LINK);
3247 		} else {
3248 			/* enable beacon filtering */
3249 			WARN_ON(iwl_mvm_enable_beacon_filter(mvm, vif, 0));
3250 
3251 			mvmvif->authorized = 1;
3252 
3253 			/*
3254 			 * Now that the station is authorized, i.e., keys were already
3255 			 * installed, need to indicate to the FW that
3256 			 * multicast data frames can be forwarded to the driver
3257 			 */
3258 			iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3259 			iwl_mvm_mei_host_associated(mvm, vif, mvm_sta);
3260 		}
3261 
3262 		iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
3263 				     true);
3264 	} else if (old_state == IEEE80211_STA_AUTHORIZED &&
3265 		   new_state == IEEE80211_STA_ASSOC) {
3266 		/* once we move into assoc state, need to update rate scale to
3267 		 * disable using wide bandwidth
3268 		 */
3269 		iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
3270 				     false);
3271 		if (!sta->tdls) {
3272 			/* Multicast data frames are no longer allowed */
3273 			iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3274 
3275 			/*
3276 			 * Set this after the above iwl_mvm_mac_ctxt_changed()
3277 			 * to avoid sending high prio again for a little time.
3278 			 */
3279 			mvmvif->authorized = 0;
3280 
3281 			/* disable beacon filtering */
3282 			ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
3283 			WARN_ON(ret &&
3284 				!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
3285 					  &mvm->status));
3286 		}
3287 		ret = 0;
3288 	} else if (old_state == IEEE80211_STA_ASSOC &&
3289 		   new_state == IEEE80211_STA_AUTH) {
3290 		if (vif->type == NL80211_IFTYPE_AP) {
3291 			mvmvif->ap_assoc_sta_count--;
3292 			iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3293 		} else if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
3294 			iwl_mvm_stop_session_protection(mvm, vif);
3295 		ret = 0;
3296 	} else if (old_state == IEEE80211_STA_AUTH &&
3297 		   new_state == IEEE80211_STA_NONE) {
3298 		ret = 0;
3299 	} else if (old_state == IEEE80211_STA_NONE &&
3300 		   new_state == IEEE80211_STA_NOTEXIST) {
3301 		if (vif->type == NL80211_IFTYPE_STATION && !sta->tdls)
3302 			iwl_mvm_stop_session_protection(mvm, vif);
3303 		ret = iwl_mvm_rm_sta(mvm, vif, sta);
3304 		if (sta->tdls) {
3305 			iwl_mvm_recalc_tdls_state(mvm, vif, false);
3306 			iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
3307 						   NL80211_TDLS_DISABLE_LINK);
3308 		}
3309 
3310 		if (unlikely(ret &&
3311 			     test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED,
3312 				      &mvm->status)))
3313 			ret = 0;
3314 	} else {
3315 		ret = -EIO;
3316 	}
3317  out_unlock:
3318 	mutex_unlock(&mvm->mutex);
3319 
3320 	if (sta->tdls && ret == 0) {
3321 		if (old_state == IEEE80211_STA_NOTEXIST &&
3322 		    new_state == IEEE80211_STA_NONE)
3323 			ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
3324 		else if (old_state == IEEE80211_STA_NONE &&
3325 			 new_state == IEEE80211_STA_NOTEXIST)
3326 			ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
3327 	}
3328 
3329 	return ret;
3330 }
3331 
3332 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw *hw, u32 value)
3333 {
3334 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3335 
3336 	mvm->rts_threshold = value;
3337 
3338 	return 0;
3339 }
3340 
3341 static void iwl_mvm_sta_rc_update(struct ieee80211_hw *hw,
3342 				  struct ieee80211_vif *vif,
3343 				  struct ieee80211_sta *sta, u32 changed)
3344 {
3345 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3346 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3347 
3348 	if (changed & (IEEE80211_RC_BW_CHANGED |
3349 		       IEEE80211_RC_SUPP_RATES_CHANGED |
3350 		       IEEE80211_RC_NSS_CHANGED))
3351 		iwl_mvm_rs_rate_init(mvm, sta, mvmvif->phy_ctxt->channel->band,
3352 				     true);
3353 
3354 	if (vif->type == NL80211_IFTYPE_STATION &&
3355 	    changed & IEEE80211_RC_NSS_CHANGED)
3356 		iwl_mvm_sf_update(mvm, vif, false);
3357 }
3358 
3359 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw *hw,
3360 			       struct ieee80211_vif *vif, u16 ac,
3361 			       const struct ieee80211_tx_queue_params *params)
3362 {
3363 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3364 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3365 
3366 	mvmvif->queue_params[ac] = *params;
3367 
3368 	/*
3369 	 * No need to update right away, we'll get BSS_CHANGED_QOS
3370 	 * The exception is P2P_DEVICE interface which needs immediate update.
3371 	 */
3372 	if (vif->type == NL80211_IFTYPE_P2P_DEVICE) {
3373 		int ret;
3374 
3375 		mutex_lock(&mvm->mutex);
3376 		ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
3377 		mutex_unlock(&mvm->mutex);
3378 		return ret;
3379 	}
3380 	return 0;
3381 }
3382 
3383 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw *hw,
3384 				       struct ieee80211_vif *vif,
3385 				       struct ieee80211_prep_tx_info *info)
3386 {
3387 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3388 
3389 	mutex_lock(&mvm->mutex);
3390 	iwl_mvm_protect_assoc(mvm, vif, info->duration);
3391 	mutex_unlock(&mvm->mutex);
3392 }
3393 
3394 static void iwl_mvm_mac_mgd_complete_tx(struct ieee80211_hw *hw,
3395 					struct ieee80211_vif *vif,
3396 					struct ieee80211_prep_tx_info *info)
3397 {
3398 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3399 
3400 	/* for successful cases (auth/assoc), don't cancel session protection */
3401 	if (info->success)
3402 		return;
3403 
3404 	mutex_lock(&mvm->mutex);
3405 	iwl_mvm_stop_session_protection(mvm, vif);
3406 	mutex_unlock(&mvm->mutex);
3407 }
3408 
3409 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw *hw,
3410 					struct ieee80211_vif *vif,
3411 					struct cfg80211_sched_scan_request *req,
3412 					struct ieee80211_scan_ies *ies)
3413 {
3414 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3415 
3416 	int ret;
3417 
3418 	mutex_lock(&mvm->mutex);
3419 
3420 	if (!vif->bss_conf.idle) {
3421 		ret = -EBUSY;
3422 		goto out;
3423 	}
3424 
3425 	ret = iwl_mvm_sched_scan_start(mvm, vif, req, ies, IWL_MVM_SCAN_SCHED);
3426 
3427 out:
3428 	mutex_unlock(&mvm->mutex);
3429 	return ret;
3430 }
3431 
3432 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw *hw,
3433 				       struct ieee80211_vif *vif)
3434 {
3435 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3436 	int ret;
3437 
3438 	mutex_lock(&mvm->mutex);
3439 
3440 	/* Due to a race condition, it's possible that mac80211 asks
3441 	 * us to stop a sched_scan when it's already stopped.  This
3442 	 * can happen, for instance, if we stopped the scan ourselves,
3443 	 * called ieee80211_sched_scan_stopped() and the userspace called
3444 	 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
3445 	 * could run.  To handle this, simply return if the scan is
3446 	 * not running.
3447 	*/
3448 	if (!(mvm->scan_status & IWL_MVM_SCAN_SCHED)) {
3449 		mutex_unlock(&mvm->mutex);
3450 		return 0;
3451 	}
3452 
3453 	ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, false);
3454 	mutex_unlock(&mvm->mutex);
3455 	iwl_mvm_wait_for_async_handlers(mvm);
3456 
3457 	return ret;
3458 }
3459 
3460 static int __iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
3461 				 enum set_key_cmd cmd,
3462 				 struct ieee80211_vif *vif,
3463 				 struct ieee80211_sta *sta,
3464 				 struct ieee80211_key_conf *key)
3465 {
3466 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3467 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3468 	struct iwl_mvm_sta *mvmsta = NULL;
3469 	struct iwl_mvm_key_pn *ptk_pn;
3470 	int keyidx = key->keyidx;
3471 	int ret, i;
3472 	u8 key_offset;
3473 
3474 	if (sta)
3475 		mvmsta = iwl_mvm_sta_from_mac80211(sta);
3476 
3477 	switch (key->cipher) {
3478 	case WLAN_CIPHER_SUITE_TKIP:
3479 		if (!mvm->trans->trans_cfg->gen2) {
3480 			key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
3481 			key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
3482 		} else if (vif->type == NL80211_IFTYPE_STATION) {
3483 			key->flags |= IEEE80211_KEY_FLAG_PUT_MIC_SPACE;
3484 		} else {
3485 			IWL_DEBUG_MAC80211(mvm, "Use SW encryption for TKIP\n");
3486 			return -EOPNOTSUPP;
3487 		}
3488 		break;
3489 	case WLAN_CIPHER_SUITE_CCMP:
3490 	case WLAN_CIPHER_SUITE_GCMP:
3491 	case WLAN_CIPHER_SUITE_GCMP_256:
3492 		if (!iwl_mvm_has_new_tx_api(mvm))
3493 			key->flags |= IEEE80211_KEY_FLAG_PUT_IV_SPACE;
3494 		break;
3495 	case WLAN_CIPHER_SUITE_AES_CMAC:
3496 	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
3497 	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
3498 		WARN_ON_ONCE(!ieee80211_hw_check(hw, MFP_CAPABLE));
3499 		break;
3500 	case WLAN_CIPHER_SUITE_WEP40:
3501 	case WLAN_CIPHER_SUITE_WEP104:
3502 		if (vif->type == NL80211_IFTYPE_STATION)
3503 			break;
3504 		if (iwl_mvm_has_new_tx_api(mvm))
3505 			return -EOPNOTSUPP;
3506 		/* support HW crypto on TX */
3507 		return 0;
3508 	default:
3509 		return -EOPNOTSUPP;
3510 	}
3511 
3512 	switch (cmd) {
3513 	case SET_KEY:
3514 		if (keyidx == 6 || keyidx == 7)
3515 			rcu_assign_pointer(mvmvif->bcn_prot.keys[keyidx - 6],
3516 					   key);
3517 
3518 		if ((vif->type == NL80211_IFTYPE_ADHOC ||
3519 		     vif->type == NL80211_IFTYPE_AP) && !sta) {
3520 			/*
3521 			 * GTK on AP interface is a TX-only key, return 0;
3522 			 * on IBSS they're per-station and because we're lazy
3523 			 * we don't support them for RX, so do the same.
3524 			 * CMAC/GMAC in AP/IBSS modes must be done in software.
3525 			 */
3526 			if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC ||
3527 			    key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_128 ||
3528 			    key->cipher == WLAN_CIPHER_SUITE_BIP_GMAC_256) {
3529 				ret = -EOPNOTSUPP;
3530 				break;
3531 			}
3532 
3533 			if (key->cipher != WLAN_CIPHER_SUITE_GCMP &&
3534 			    key->cipher != WLAN_CIPHER_SUITE_GCMP_256 &&
3535 			    !iwl_mvm_has_new_tx_api(mvm)) {
3536 				key->hw_key_idx = STA_KEY_IDX_INVALID;
3537 				ret = 0;
3538 				break;
3539 			}
3540 
3541 			if (!mvmvif->ap_ibss_active) {
3542 				for (i = 0;
3543 				     i < ARRAY_SIZE(mvmvif->ap_early_keys);
3544 				     i++) {
3545 					if (!mvmvif->ap_early_keys[i]) {
3546 						mvmvif->ap_early_keys[i] = key;
3547 						break;
3548 					}
3549 				}
3550 
3551 				if (i >= ARRAY_SIZE(mvmvif->ap_early_keys))
3552 					ret = -ENOSPC;
3553 				else
3554 					ret = 0;
3555 
3556 				break;
3557 			}
3558 		}
3559 
3560 		/* During FW restart, in order to restore the state as it was,
3561 		 * don't try to reprogram keys we previously failed for.
3562 		 */
3563 		if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
3564 		    key->hw_key_idx == STA_KEY_IDX_INVALID) {
3565 			IWL_DEBUG_MAC80211(mvm,
3566 					   "skip invalid idx key programming during restart\n");
3567 			ret = 0;
3568 			break;
3569 		}
3570 
3571 		if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
3572 		    mvmsta && iwl_mvm_has_new_rx_api(mvm) &&
3573 		    key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
3574 		    (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
3575 		     key->cipher == WLAN_CIPHER_SUITE_GCMP ||
3576 		     key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
3577 			struct ieee80211_key_seq seq;
3578 			int tid, q;
3579 
3580 			WARN_ON(rcu_access_pointer(mvmsta->ptk_pn[keyidx]));
3581 			ptk_pn = kzalloc(struct_size(ptk_pn, q,
3582 						     mvm->trans->num_rx_queues),
3583 					 GFP_KERNEL);
3584 			if (!ptk_pn) {
3585 				ret = -ENOMEM;
3586 				break;
3587 			}
3588 
3589 			for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
3590 				ieee80211_get_key_rx_seq(key, tid, &seq);
3591 				for (q = 0; q < mvm->trans->num_rx_queues; q++)
3592 					memcpy(ptk_pn->q[q].pn[tid],
3593 					       seq.ccmp.pn,
3594 					       IEEE80211_CCMP_PN_LEN);
3595 			}
3596 
3597 			rcu_assign_pointer(mvmsta->ptk_pn[keyidx], ptk_pn);
3598 		}
3599 
3600 		/* in HW restart reuse the index, otherwise request a new one */
3601 		if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
3602 			key_offset = key->hw_key_idx;
3603 		else
3604 			key_offset = STA_KEY_IDX_INVALID;
3605 
3606 		if (mvmsta && key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
3607 			mvmsta->pairwise_cipher = key->cipher;
3608 
3609 		IWL_DEBUG_MAC80211(mvm, "set hwcrypto key\n");
3610 		ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, key_offset);
3611 		if (ret) {
3612 			IWL_WARN(mvm, "set key failed\n");
3613 			key->hw_key_idx = STA_KEY_IDX_INVALID;
3614 			/*
3615 			 * can't add key for RX, but we don't need it
3616 			 * in the device for TX so still return 0,
3617 			 * unless we have new TX API where we cannot
3618 			 * put key material into the TX_CMD
3619 			 */
3620 			if (iwl_mvm_has_new_tx_api(mvm))
3621 				ret = -EOPNOTSUPP;
3622 			else
3623 				ret = 0;
3624 		}
3625 
3626 		break;
3627 	case DISABLE_KEY:
3628 		if (keyidx == 6 || keyidx == 7)
3629 			RCU_INIT_POINTER(mvmvif->bcn_prot.keys[keyidx - 6],
3630 					 NULL);
3631 
3632 		ret = -ENOENT;
3633 		for (i = 0; i < ARRAY_SIZE(mvmvif->ap_early_keys); i++) {
3634 			if (mvmvif->ap_early_keys[i] == key) {
3635 				mvmvif->ap_early_keys[i] = NULL;
3636 				ret = 0;
3637 			}
3638 		}
3639 
3640 		/* found in pending list - don't do anything else */
3641 		if (ret == 0)
3642 			break;
3643 
3644 		if (key->hw_key_idx == STA_KEY_IDX_INVALID) {
3645 			ret = 0;
3646 			break;
3647 		}
3648 
3649 		if (mvmsta && iwl_mvm_has_new_rx_api(mvm) &&
3650 		    key->flags & IEEE80211_KEY_FLAG_PAIRWISE &&
3651 		    (key->cipher == WLAN_CIPHER_SUITE_CCMP ||
3652 		     key->cipher == WLAN_CIPHER_SUITE_GCMP ||
3653 		     key->cipher == WLAN_CIPHER_SUITE_GCMP_256)) {
3654 			ptk_pn = rcu_dereference_protected(
3655 						mvmsta->ptk_pn[keyidx],
3656 						lockdep_is_held(&mvm->mutex));
3657 			RCU_INIT_POINTER(mvmsta->ptk_pn[keyidx], NULL);
3658 			if (ptk_pn)
3659 				kfree_rcu(ptk_pn, rcu_head);
3660 		}
3661 
3662 		IWL_DEBUG_MAC80211(mvm, "disable hwcrypto key\n");
3663 		ret = iwl_mvm_remove_sta_key(mvm, vif, sta, key);
3664 		break;
3665 	default:
3666 		ret = -EINVAL;
3667 	}
3668 
3669 	return ret;
3670 }
3671 
3672 static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
3673 			       enum set_key_cmd cmd,
3674 			       struct ieee80211_vif *vif,
3675 			       struct ieee80211_sta *sta,
3676 			       struct ieee80211_key_conf *key)
3677 {
3678 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3679 	int ret;
3680 
3681 	mutex_lock(&mvm->mutex);
3682 	ret = __iwl_mvm_mac_set_key(hw, cmd, vif, sta, key);
3683 	mutex_unlock(&mvm->mutex);
3684 
3685 	return ret;
3686 }
3687 
3688 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw *hw,
3689 					struct ieee80211_vif *vif,
3690 					struct ieee80211_key_conf *keyconf,
3691 					struct ieee80211_sta *sta,
3692 					u32 iv32, u16 *phase1key)
3693 {
3694 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3695 
3696 	if (keyconf->hw_key_idx == STA_KEY_IDX_INVALID)
3697 		return;
3698 
3699 	iwl_mvm_update_tkip_key(mvm, vif, keyconf, sta, iv32, phase1key);
3700 }
3701 
3702 
3703 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data *notif_wait,
3704 			       struct iwl_rx_packet *pkt, void *data)
3705 {
3706 	struct iwl_mvm *mvm =
3707 		container_of(notif_wait, struct iwl_mvm, notif_wait);
3708 	struct iwl_hs20_roc_res *resp;
3709 	int resp_len = iwl_rx_packet_payload_len(pkt);
3710 	struct iwl_mvm_time_event_data *te_data = data;
3711 
3712 	if (WARN_ON(pkt->hdr.cmd != HOT_SPOT_CMD))
3713 		return true;
3714 
3715 	if (WARN_ON_ONCE(resp_len != sizeof(*resp))) {
3716 		IWL_ERR(mvm, "Invalid HOT_SPOT_CMD response\n");
3717 		return true;
3718 	}
3719 
3720 	resp = (void *)pkt->data;
3721 
3722 	IWL_DEBUG_TE(mvm,
3723 		     "Aux ROC: Received response from ucode: status=%d uid=%d\n",
3724 		     resp->status, resp->event_unique_id);
3725 
3726 	te_data->uid = le32_to_cpu(resp->event_unique_id);
3727 	IWL_DEBUG_TE(mvm, "TIME_EVENT_CMD response - UID = 0x%x\n",
3728 		     te_data->uid);
3729 
3730 	spin_lock_bh(&mvm->time_event_lock);
3731 	list_add_tail(&te_data->list, &mvm->aux_roc_te_list);
3732 	spin_unlock_bh(&mvm->time_event_lock);
3733 
3734 	return true;
3735 }
3736 
3737 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
3738 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
3739 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
3740 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
3741 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
3742 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm *mvm,
3743 				    struct ieee80211_channel *channel,
3744 				    struct ieee80211_vif *vif,
3745 				    int duration)
3746 {
3747 	int res;
3748 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3749 	struct iwl_mvm_time_event_data *te_data = &mvmvif->hs_time_event_data;
3750 	static const u16 time_event_response[] = { HOT_SPOT_CMD };
3751 	struct iwl_notification_wait wait_time_event;
3752 	u32 dtim_interval = vif->bss_conf.dtim_period *
3753 		vif->bss_conf.beacon_int;
3754 	u32 req_dur, delay;
3755 	struct iwl_hs20_roc_req aux_roc_req = {
3756 		.action = cpu_to_le32(FW_CTXT_ACTION_ADD),
3757 		.id_and_color =
3758 			cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX, 0)),
3759 		.sta_id_and_color = cpu_to_le32(mvm->aux_sta.sta_id),
3760 	};
3761 	struct iwl_hs20_roc_req_tail *tail = iwl_mvm_chan_info_cmd_tail(mvm,
3762 		&aux_roc_req.channel_info);
3763 	u16 len = sizeof(aux_roc_req) - iwl_mvm_chan_info_padding(mvm);
3764 
3765 	/* Set the channel info data */
3766 	iwl_mvm_set_chan_info(mvm, &aux_roc_req.channel_info, channel->hw_value,
3767 			      iwl_mvm_phy_band_from_nl80211(channel->band),
3768 			      PHY_VHT_CHANNEL_MODE20,
3769 			      0);
3770 
3771 	/* Set the time and duration */
3772 	tail->apply_time = cpu_to_le32(iwl_mvm_get_systime(mvm));
3773 
3774 	delay = AUX_ROC_MIN_DELAY;
3775 	req_dur = MSEC_TO_TU(duration);
3776 
3777 	/*
3778 	 * If we are associated we want the delay time to be at least one
3779 	 * dtim interval so that the FW can wait until after the DTIM and
3780 	 * then start the time event, this will potentially allow us to
3781 	 * remain off-channel for the max duration.
3782 	 * Since we want to use almost a whole dtim interval we would also
3783 	 * like the delay to be for 2-3 dtim intervals, in case there are
3784 	 * other time events with higher priority.
3785 	 */
3786 	if (vif->bss_conf.assoc) {
3787 		delay = min_t(u32, dtim_interval * 3, AUX_ROC_MAX_DELAY);
3788 		/* We cannot remain off-channel longer than the DTIM interval */
3789 		if (dtim_interval <= req_dur) {
3790 			req_dur = dtim_interval - AUX_ROC_SAFETY_BUFFER;
3791 			if (req_dur <= AUX_ROC_MIN_DURATION)
3792 				req_dur = dtim_interval -
3793 					AUX_ROC_MIN_SAFETY_BUFFER;
3794 		}
3795 	}
3796 
3797 	tail->duration = cpu_to_le32(req_dur);
3798 	tail->apply_time_max_delay = cpu_to_le32(delay);
3799 
3800 	IWL_DEBUG_TE(mvm,
3801 		     "ROC: Requesting to remain on channel %u for %ums\n",
3802 		     channel->hw_value, req_dur);
3803 	IWL_DEBUG_TE(mvm,
3804 		     "\t(requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
3805 		     duration, delay, dtim_interval);
3806 
3807 	/* Set the node address */
3808 	memcpy(tail->node_addr, vif->addr, ETH_ALEN);
3809 
3810 	lockdep_assert_held(&mvm->mutex);
3811 
3812 	spin_lock_bh(&mvm->time_event_lock);
3813 
3814 	if (WARN_ON(te_data->id == HOT_SPOT_CMD)) {
3815 		spin_unlock_bh(&mvm->time_event_lock);
3816 		return -EIO;
3817 	}
3818 
3819 	te_data->vif = vif;
3820 	te_data->duration = duration;
3821 	te_data->id = HOT_SPOT_CMD;
3822 
3823 	spin_unlock_bh(&mvm->time_event_lock);
3824 
3825 	/*
3826 	 * Use a notification wait, which really just processes the
3827 	 * command response and doesn't wait for anything, in order
3828 	 * to be able to process the response and get the UID inside
3829 	 * the RX path. Using CMD_WANT_SKB doesn't work because it
3830 	 * stores the buffer and then wakes up this thread, by which
3831 	 * time another notification (that the time event started)
3832 	 * might already be processed unsuccessfully.
3833 	 */
3834 	iwl_init_notification_wait(&mvm->notif_wait, &wait_time_event,
3835 				   time_event_response,
3836 				   ARRAY_SIZE(time_event_response),
3837 				   iwl_mvm_rx_aux_roc, te_data);
3838 
3839 	res = iwl_mvm_send_cmd_pdu(mvm, HOT_SPOT_CMD, 0, len,
3840 				   &aux_roc_req);
3841 
3842 	if (res) {
3843 		IWL_ERR(mvm, "Couldn't send HOT_SPOT_CMD: %d\n", res);
3844 		iwl_remove_notification(&mvm->notif_wait, &wait_time_event);
3845 		goto out_clear_te;
3846 	}
3847 
3848 	/* No need to wait for anything, so just pass 1 (0 isn't valid) */
3849 	res = iwl_wait_notification(&mvm->notif_wait, &wait_time_event, 1);
3850 	/* should never fail */
3851 	WARN_ON_ONCE(res);
3852 
3853 	if (res) {
3854  out_clear_te:
3855 		spin_lock_bh(&mvm->time_event_lock);
3856 		iwl_mvm_te_clear_data(mvm, te_data);
3857 		spin_unlock_bh(&mvm->time_event_lock);
3858 	}
3859 
3860 	return res;
3861 }
3862 
3863 static int iwl_mvm_roc(struct ieee80211_hw *hw,
3864 		       struct ieee80211_vif *vif,
3865 		       struct ieee80211_channel *channel,
3866 		       int duration,
3867 		       enum ieee80211_roc_type type)
3868 {
3869 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3870 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
3871 	struct cfg80211_chan_def chandef;
3872 	struct iwl_mvm_phy_ctxt *phy_ctxt;
3873 	bool band_change_removal;
3874 	int ret, i;
3875 
3876 	IWL_DEBUG_MAC80211(mvm, "enter (%d, %d, %d)\n", channel->hw_value,
3877 			   duration, type);
3878 
3879 	/*
3880 	 * Flush the done work, just in case it's still pending, so that
3881 	 * the work it does can complete and we can accept new frames.
3882 	 */
3883 	flush_work(&mvm->roc_done_wk);
3884 
3885 	mutex_lock(&mvm->mutex);
3886 
3887 	switch (vif->type) {
3888 	case NL80211_IFTYPE_STATION:
3889 		if (fw_has_capa(&mvm->fw->ucode_capa,
3890 				IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT)) {
3891 			/* Use aux roc framework (HS20) */
3892 			if (iwl_fw_lookup_cmd_ver(mvm->fw, ADD_STA, 0) >= 12) {
3893 				u32 lmac_id;
3894 
3895 				lmac_id = iwl_mvm_get_lmac_id(mvm->fw,
3896 							      channel->band);
3897 				ret = iwl_mvm_add_aux_sta(mvm, lmac_id);
3898 				if (WARN(ret,
3899 					 "Failed to allocate aux station"))
3900 					goto out_unlock;
3901 			}
3902 			ret = iwl_mvm_send_aux_roc_cmd(mvm, channel,
3903 						       vif, duration);
3904 			goto out_unlock;
3905 		}
3906 		IWL_ERR(mvm, "hotspot not supported\n");
3907 		ret = -EINVAL;
3908 		goto out_unlock;
3909 	case NL80211_IFTYPE_P2P_DEVICE:
3910 		/* handle below */
3911 		break;
3912 	default:
3913 		IWL_ERR(mvm, "vif isn't P2P_DEVICE: %d\n", vif->type);
3914 		ret = -EINVAL;
3915 		goto out_unlock;
3916 	}
3917 
3918 	for (i = 0; i < NUM_PHY_CTX; i++) {
3919 		phy_ctxt = &mvm->phy_ctxts[i];
3920 		if (phy_ctxt->ref == 0 || mvmvif->phy_ctxt == phy_ctxt)
3921 			continue;
3922 
3923 		if (phy_ctxt->ref && channel == phy_ctxt->channel) {
3924 			/*
3925 			 * Unbind the P2P_DEVICE from the current PHY context,
3926 			 * and if the PHY context is not used remove it.
3927 			 */
3928 			ret = iwl_mvm_binding_remove_vif(mvm, vif);
3929 			if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3930 				goto out_unlock;
3931 
3932 			iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3933 
3934 			/* Bind the P2P_DEVICE to the current PHY Context */
3935 			mvmvif->phy_ctxt = phy_ctxt;
3936 
3937 			ret = iwl_mvm_binding_add_vif(mvm, vif);
3938 			if (WARN(ret, "Failed binding P2P_DEVICE\n"))
3939 				goto out_unlock;
3940 
3941 			iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
3942 			goto schedule_time_event;
3943 		}
3944 	}
3945 
3946 	/* Need to update the PHY context only if the ROC channel changed */
3947 	if (channel == mvmvif->phy_ctxt->channel)
3948 		goto schedule_time_event;
3949 
3950 	cfg80211_chandef_create(&chandef, channel, NL80211_CHAN_NO_HT);
3951 
3952 	/*
3953 	 * Check if the remain-on-channel is on a different band and that
3954 	 * requires context removal, see iwl_mvm_phy_ctxt_changed(). If
3955 	 * so, we'll need to release and then re-configure here, since we
3956 	 * must not remove a PHY context that's part of a binding.
3957 	 */
3958 	band_change_removal =
3959 		fw_has_capa(&mvm->fw->ucode_capa,
3960 			    IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT) &&
3961 		mvmvif->phy_ctxt->channel->band != chandef.chan->band;
3962 
3963 	if (mvmvif->phy_ctxt->ref == 1 && !band_change_removal) {
3964 		/*
3965 		 * Change the PHY context configuration as it is currently
3966 		 * referenced only by the P2P Device MAC (and we can modify it)
3967 		 */
3968 		ret = iwl_mvm_phy_ctxt_changed(mvm, mvmvif->phy_ctxt,
3969 					       &chandef, 1, 1);
3970 		if (ret)
3971 			goto out_unlock;
3972 	} else {
3973 		/*
3974 		 * The PHY context is shared with other MACs (or we're trying to
3975 		 * switch bands), so remove the P2P Device from the binding,
3976 		 * allocate an new PHY context and create a new binding.
3977 		 */
3978 		phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
3979 		if (!phy_ctxt) {
3980 			ret = -ENOSPC;
3981 			goto out_unlock;
3982 		}
3983 
3984 		ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, &chandef,
3985 					       1, 1);
3986 		if (ret) {
3987 			IWL_ERR(mvm, "Failed to change PHY context\n");
3988 			goto out_unlock;
3989 		}
3990 
3991 		/* Unbind the P2P_DEVICE from the current PHY context */
3992 		ret = iwl_mvm_binding_remove_vif(mvm, vif);
3993 		if (WARN(ret, "Failed unbinding P2P_DEVICE\n"))
3994 			goto out_unlock;
3995 
3996 		iwl_mvm_phy_ctxt_unref(mvm, mvmvif->phy_ctxt);
3997 
3998 		/* Bind the P2P_DEVICE to the new allocated PHY context */
3999 		mvmvif->phy_ctxt = phy_ctxt;
4000 
4001 		ret = iwl_mvm_binding_add_vif(mvm, vif);
4002 		if (WARN(ret, "Failed binding P2P_DEVICE\n"))
4003 			goto out_unlock;
4004 
4005 		iwl_mvm_phy_ctxt_ref(mvm, mvmvif->phy_ctxt);
4006 	}
4007 
4008 schedule_time_event:
4009 	/* Schedule the time events */
4010 	ret = iwl_mvm_start_p2p_roc(mvm, vif, duration, type);
4011 
4012 out_unlock:
4013 	mutex_unlock(&mvm->mutex);
4014 	IWL_DEBUG_MAC80211(mvm, "leave\n");
4015 	return ret;
4016 }
4017 
4018 static int iwl_mvm_cancel_roc(struct ieee80211_hw *hw,
4019 			      struct ieee80211_vif *vif)
4020 {
4021 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4022 
4023 	IWL_DEBUG_MAC80211(mvm, "enter\n");
4024 
4025 	mutex_lock(&mvm->mutex);
4026 	iwl_mvm_stop_roc(mvm, vif);
4027 	mutex_unlock(&mvm->mutex);
4028 
4029 	IWL_DEBUG_MAC80211(mvm, "leave\n");
4030 	return 0;
4031 }
4032 
4033 struct iwl_mvm_ftm_responder_iter_data {
4034 	bool responder;
4035 	struct ieee80211_chanctx_conf *ctx;
4036 };
4037 
4038 static void iwl_mvm_ftm_responder_chanctx_iter(void *_data, u8 *mac,
4039 					       struct ieee80211_vif *vif)
4040 {
4041 	struct iwl_mvm_ftm_responder_iter_data *data = _data;
4042 
4043 	if (rcu_access_pointer(vif->chanctx_conf) == data->ctx &&
4044 	    vif->type == NL80211_IFTYPE_AP && vif->bss_conf.ftmr_params)
4045 		data->responder = true;
4046 }
4047 
4048 static bool iwl_mvm_is_ftm_responder_chanctx(struct iwl_mvm *mvm,
4049 					     struct ieee80211_chanctx_conf *ctx)
4050 {
4051 	struct iwl_mvm_ftm_responder_iter_data data = {
4052 		.responder = false,
4053 		.ctx = ctx,
4054 	};
4055 
4056 	ieee80211_iterate_active_interfaces_atomic(mvm->hw,
4057 					IEEE80211_IFACE_ITER_NORMAL,
4058 					iwl_mvm_ftm_responder_chanctx_iter,
4059 					&data);
4060 	return data.responder;
4061 }
4062 
4063 static int __iwl_mvm_add_chanctx(struct iwl_mvm *mvm,
4064 				 struct ieee80211_chanctx_conf *ctx)
4065 {
4066 	u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4067 	struct iwl_mvm_phy_ctxt *phy_ctxt;
4068 	bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx);
4069 	struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def;
4070 	int ret;
4071 
4072 	lockdep_assert_held(&mvm->mutex);
4073 
4074 	IWL_DEBUG_MAC80211(mvm, "Add channel context\n");
4075 
4076 	phy_ctxt = iwl_mvm_get_free_phy_ctxt(mvm);
4077 	if (!phy_ctxt) {
4078 		ret = -ENOSPC;
4079 		goto out;
4080 	}
4081 
4082 	ret = iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def,
4083 				       ctx->rx_chains_static,
4084 				       ctx->rx_chains_dynamic);
4085 	if (ret) {
4086 		IWL_ERR(mvm, "Failed to add PHY context\n");
4087 		goto out;
4088 	}
4089 
4090 	iwl_mvm_phy_ctxt_ref(mvm, phy_ctxt);
4091 	*phy_ctxt_id = phy_ctxt->id;
4092 out:
4093 	return ret;
4094 }
4095 
4096 static int iwl_mvm_add_chanctx(struct ieee80211_hw *hw,
4097 			       struct ieee80211_chanctx_conf *ctx)
4098 {
4099 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4100 	int ret;
4101 
4102 	mutex_lock(&mvm->mutex);
4103 	ret = __iwl_mvm_add_chanctx(mvm, ctx);
4104 	mutex_unlock(&mvm->mutex);
4105 
4106 	return ret;
4107 }
4108 
4109 static void __iwl_mvm_remove_chanctx(struct iwl_mvm *mvm,
4110 				     struct ieee80211_chanctx_conf *ctx)
4111 {
4112 	u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4113 	struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
4114 
4115 	lockdep_assert_held(&mvm->mutex);
4116 
4117 	iwl_mvm_phy_ctxt_unref(mvm, phy_ctxt);
4118 }
4119 
4120 static void iwl_mvm_remove_chanctx(struct ieee80211_hw *hw,
4121 				   struct ieee80211_chanctx_conf *ctx)
4122 {
4123 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4124 
4125 	mutex_lock(&mvm->mutex);
4126 	__iwl_mvm_remove_chanctx(mvm, ctx);
4127 	mutex_unlock(&mvm->mutex);
4128 }
4129 
4130 static void iwl_mvm_change_chanctx(struct ieee80211_hw *hw,
4131 				   struct ieee80211_chanctx_conf *ctx,
4132 				   u32 changed)
4133 {
4134 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4135 	u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4136 	struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
4137 	bool responder = iwl_mvm_is_ftm_responder_chanctx(mvm, ctx);
4138 	struct cfg80211_chan_def *def = responder ? &ctx->def : &ctx->min_def;
4139 
4140 	if (WARN_ONCE((phy_ctxt->ref > 1) &&
4141 		      (changed & ~(IEEE80211_CHANCTX_CHANGE_WIDTH |
4142 				   IEEE80211_CHANCTX_CHANGE_RX_CHAINS |
4143 				   IEEE80211_CHANCTX_CHANGE_RADAR |
4144 				   IEEE80211_CHANCTX_CHANGE_MIN_WIDTH)),
4145 		      "Cannot change PHY. Ref=%d, changed=0x%X\n",
4146 		      phy_ctxt->ref, changed))
4147 		return;
4148 
4149 	mutex_lock(&mvm->mutex);
4150 
4151 	/* we are only changing the min_width, may be a noop */
4152 	if (changed == IEEE80211_CHANCTX_CHANGE_MIN_WIDTH) {
4153 		if (phy_ctxt->width == def->width)
4154 			goto out_unlock;
4155 
4156 		/* we are just toggling between 20_NOHT and 20 */
4157 		if (phy_ctxt->width <= NL80211_CHAN_WIDTH_20 &&
4158 		    def->width <= NL80211_CHAN_WIDTH_20)
4159 			goto out_unlock;
4160 	}
4161 
4162 	iwl_mvm_bt_coex_vif_change(mvm);
4163 	iwl_mvm_phy_ctxt_changed(mvm, phy_ctxt, def,
4164 				 ctx->rx_chains_static,
4165 				 ctx->rx_chains_dynamic);
4166 
4167 out_unlock:
4168 	mutex_unlock(&mvm->mutex);
4169 }
4170 
4171 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm *mvm,
4172 					struct ieee80211_vif *vif,
4173 					struct ieee80211_chanctx_conf *ctx,
4174 					bool switching_chanctx)
4175 {
4176 	u16 *phy_ctxt_id = (u16 *)ctx->drv_priv;
4177 	struct iwl_mvm_phy_ctxt *phy_ctxt = &mvm->phy_ctxts[*phy_ctxt_id];
4178 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4179 	int ret;
4180 
4181 	lockdep_assert_held(&mvm->mutex);
4182 
4183 	mvmvif->phy_ctxt = phy_ctxt;
4184 
4185 	switch (vif->type) {
4186 	case NL80211_IFTYPE_AP:
4187 		/* only needed if we're switching chanctx (i.e. during CSA) */
4188 		if (switching_chanctx) {
4189 			mvmvif->ap_ibss_active = true;
4190 			break;
4191 		}
4192 		fallthrough;
4193 	case NL80211_IFTYPE_ADHOC:
4194 		/*
4195 		 * The AP binding flow is handled as part of the start_ap flow
4196 		 * (in bss_info_changed), similarly for IBSS.
4197 		 */
4198 		ret = 0;
4199 		goto out;
4200 	case NL80211_IFTYPE_STATION:
4201 		mvmvif->csa_bcn_pending = false;
4202 		break;
4203 	case NL80211_IFTYPE_MONITOR:
4204 		/* always disable PS when a monitor interface is active */
4205 		mvmvif->ps_disabled = true;
4206 		break;
4207 	default:
4208 		ret = -EINVAL;
4209 		goto out;
4210 	}
4211 
4212 	ret = iwl_mvm_binding_add_vif(mvm, vif);
4213 	if (ret)
4214 		goto out;
4215 
4216 	/*
4217 	 * Power state must be updated before quotas,
4218 	 * otherwise fw will complain.
4219 	 */
4220 	iwl_mvm_power_update_mac(mvm);
4221 
4222 	/* Setting the quota at this stage is only required for monitor
4223 	 * interfaces. For the other types, the bss_info changed flow
4224 	 * will handle quota settings.
4225 	 */
4226 	if (vif->type == NL80211_IFTYPE_MONITOR) {
4227 		mvmvif->monitor_active = true;
4228 		ret = iwl_mvm_update_quotas(mvm, false, NULL);
4229 		if (ret)
4230 			goto out_remove_binding;
4231 
4232 		ret = iwl_mvm_add_snif_sta(mvm, vif);
4233 		if (ret)
4234 			goto out_remove_binding;
4235 
4236 	}
4237 
4238 	/* Handle binding during CSA */
4239 	if (vif->type == NL80211_IFTYPE_AP) {
4240 		iwl_mvm_update_quotas(mvm, false, NULL);
4241 		iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
4242 	}
4243 
4244 	if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
4245 		mvmvif->csa_bcn_pending = true;
4246 
4247 		if (!fw_has_capa(&mvm->fw->ucode_capa,
4248 				 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
4249 			u32 duration = 3 * vif->bss_conf.beacon_int;
4250 
4251 			/* Protect the session to make sure we hear the first
4252 			 * beacon on the new channel.
4253 			 */
4254 			iwl_mvm_protect_session(mvm, vif, duration, duration,
4255 						vif->bss_conf.beacon_int / 2,
4256 						true);
4257 		}
4258 
4259 		iwl_mvm_update_quotas(mvm, false, NULL);
4260 	}
4261 
4262 	goto out;
4263 
4264 out_remove_binding:
4265 	iwl_mvm_binding_remove_vif(mvm, vif);
4266 	iwl_mvm_power_update_mac(mvm);
4267 out:
4268 	if (ret)
4269 		mvmvif->phy_ctxt = NULL;
4270 	return ret;
4271 }
4272 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw *hw,
4273 				      struct ieee80211_vif *vif,
4274 				      struct ieee80211_chanctx_conf *ctx)
4275 {
4276 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4277 	int ret;
4278 
4279 	mutex_lock(&mvm->mutex);
4280 	ret = __iwl_mvm_assign_vif_chanctx(mvm, vif, ctx, false);
4281 	mutex_unlock(&mvm->mutex);
4282 
4283 	return ret;
4284 }
4285 
4286 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
4287 					   struct ieee80211_vif *vif,
4288 					   struct ieee80211_chanctx_conf *ctx,
4289 					   bool switching_chanctx)
4290 {
4291 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4292 	struct ieee80211_vif *disabled_vif = NULL;
4293 
4294 	lockdep_assert_held(&mvm->mutex);
4295 	iwl_mvm_remove_time_event(mvm, mvmvif, &mvmvif->time_event_data);
4296 
4297 	switch (vif->type) {
4298 	case NL80211_IFTYPE_ADHOC:
4299 		goto out;
4300 	case NL80211_IFTYPE_MONITOR:
4301 		mvmvif->monitor_active = false;
4302 		mvmvif->ps_disabled = false;
4303 		iwl_mvm_rm_snif_sta(mvm, vif);
4304 		break;
4305 	case NL80211_IFTYPE_AP:
4306 		/* This part is triggered only during CSA */
4307 		if (!switching_chanctx || !mvmvif->ap_ibss_active)
4308 			goto out;
4309 
4310 		mvmvif->csa_countdown = false;
4311 
4312 		/* Set CS bit on all the stations */
4313 		iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
4314 
4315 		/* Save blocked iface, the timeout is set on the next beacon */
4316 		rcu_assign_pointer(mvm->csa_tx_blocked_vif, vif);
4317 
4318 		mvmvif->ap_ibss_active = false;
4319 		break;
4320 	case NL80211_IFTYPE_STATION:
4321 		if (!switching_chanctx)
4322 			break;
4323 
4324 		disabled_vif = vif;
4325 
4326 		if (!fw_has_capa(&mvm->fw->ucode_capa,
4327 				 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD))
4328 			iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
4329 		break;
4330 	default:
4331 		break;
4332 	}
4333 
4334 	iwl_mvm_update_quotas(mvm, false, disabled_vif);
4335 	iwl_mvm_binding_remove_vif(mvm, vif);
4336 
4337 out:
4338 	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) &&
4339 	    switching_chanctx)
4340 		return;
4341 	mvmvif->phy_ctxt = NULL;
4342 	iwl_mvm_power_update_mac(mvm);
4343 }
4344 
4345 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw *hw,
4346 					 struct ieee80211_vif *vif,
4347 					 struct ieee80211_chanctx_conf *ctx)
4348 {
4349 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4350 
4351 	mutex_lock(&mvm->mutex);
4352 	__iwl_mvm_unassign_vif_chanctx(mvm, vif, ctx, false);
4353 	mutex_unlock(&mvm->mutex);
4354 }
4355 
4356 static int
4357 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
4358 				struct ieee80211_vif_chanctx_switch *vifs)
4359 {
4360 	int ret;
4361 
4362 	mutex_lock(&mvm->mutex);
4363 	__iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
4364 	__iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
4365 
4366 	ret = __iwl_mvm_add_chanctx(mvm, vifs[0].new_ctx);
4367 	if (ret) {
4368 		IWL_ERR(mvm, "failed to add new_ctx during channel switch\n");
4369 		goto out_reassign;
4370 	}
4371 
4372 	ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
4373 					   true);
4374 	if (ret) {
4375 		IWL_ERR(mvm,
4376 			"failed to assign new_ctx during channel switch\n");
4377 		goto out_remove;
4378 	}
4379 
4380 	/* we don't support TDLS during DCM - can be caused by channel switch */
4381 	if (iwl_mvm_phy_ctx_count(mvm) > 1)
4382 		iwl_mvm_teardown_tdls_peers(mvm);
4383 
4384 	goto out;
4385 
4386 out_remove:
4387 	__iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
4388 
4389 out_reassign:
4390 	if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
4391 		IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
4392 		goto out_restart;
4393 	}
4394 
4395 	if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
4396 					 true)) {
4397 		IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
4398 		goto out_restart;
4399 	}
4400 
4401 	goto out;
4402 
4403 out_restart:
4404 	/* things keep failing, better restart the hw */
4405 	iwl_mvm_nic_restart(mvm, false);
4406 
4407 out:
4408 	mutex_unlock(&mvm->mutex);
4409 
4410 	return ret;
4411 }
4412 
4413 static int
4414 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
4415 				    struct ieee80211_vif_chanctx_switch *vifs)
4416 {
4417 	int ret;
4418 
4419 	mutex_lock(&mvm->mutex);
4420 	__iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
4421 
4422 	ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
4423 					   true);
4424 	if (ret) {
4425 		IWL_ERR(mvm,
4426 			"failed to assign new_ctx during channel switch\n");
4427 		goto out_reassign;
4428 	}
4429 
4430 	goto out;
4431 
4432 out_reassign:
4433 	if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
4434 					 true)) {
4435 		IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
4436 		goto out_restart;
4437 	}
4438 
4439 	goto out;
4440 
4441 out_restart:
4442 	/* things keep failing, better restart the hw */
4443 	iwl_mvm_nic_restart(mvm, false);
4444 
4445 out:
4446 	mutex_unlock(&mvm->mutex);
4447 
4448 	return ret;
4449 }
4450 
4451 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
4452 				      struct ieee80211_vif_chanctx_switch *vifs,
4453 				      int n_vifs,
4454 				      enum ieee80211_chanctx_switch_mode mode)
4455 {
4456 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4457 	int ret;
4458 
4459 	/* we only support a single-vif right now */
4460 	if (n_vifs > 1)
4461 		return -EOPNOTSUPP;
4462 
4463 	switch (mode) {
4464 	case CHANCTX_SWMODE_SWAP_CONTEXTS:
4465 		ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
4466 		break;
4467 	case CHANCTX_SWMODE_REASSIGN_VIF:
4468 		ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
4469 		break;
4470 	default:
4471 		ret = -EOPNOTSUPP;
4472 		break;
4473 	}
4474 
4475 	return ret;
4476 }
4477 
4478 static int iwl_mvm_tx_last_beacon(struct ieee80211_hw *hw)
4479 {
4480 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4481 
4482 	return mvm->ibss_manager;
4483 }
4484 
4485 static int iwl_mvm_set_tim(struct ieee80211_hw *hw,
4486 			   struct ieee80211_sta *sta,
4487 			   bool set)
4488 {
4489 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4490 	struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
4491 
4492 	if (!mvm_sta || !mvm_sta->vif) {
4493 		IWL_ERR(mvm, "Station is not associated to a vif\n");
4494 		return -EINVAL;
4495 	}
4496 
4497 	return iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm_sta->vif);
4498 }
4499 
4500 #ifdef CONFIG_NL80211_TESTMODE
4501 static const struct nla_policy iwl_mvm_tm_policy[IWL_MVM_TM_ATTR_MAX + 1] = {
4502 	[IWL_MVM_TM_ATTR_CMD] = { .type = NLA_U32 },
4503 	[IWL_MVM_TM_ATTR_NOA_DURATION] = { .type = NLA_U32 },
4504 	[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE] = { .type = NLA_U32 },
4505 };
4506 
4507 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm *mvm,
4508 				      struct ieee80211_vif *vif,
4509 				      void *data, int len)
4510 {
4511 	struct nlattr *tb[IWL_MVM_TM_ATTR_MAX + 1];
4512 	int err;
4513 	u32 noa_duration;
4514 
4515 	err = nla_parse_deprecated(tb, IWL_MVM_TM_ATTR_MAX, data, len,
4516 				   iwl_mvm_tm_policy, NULL);
4517 	if (err)
4518 		return err;
4519 
4520 	if (!tb[IWL_MVM_TM_ATTR_CMD])
4521 		return -EINVAL;
4522 
4523 	switch (nla_get_u32(tb[IWL_MVM_TM_ATTR_CMD])) {
4524 	case IWL_MVM_TM_CMD_SET_NOA:
4525 		if (!vif || vif->type != NL80211_IFTYPE_AP || !vif->p2p ||
4526 		    !vif->bss_conf.enable_beacon ||
4527 		    !tb[IWL_MVM_TM_ATTR_NOA_DURATION])
4528 			return -EINVAL;
4529 
4530 		noa_duration = nla_get_u32(tb[IWL_MVM_TM_ATTR_NOA_DURATION]);
4531 		if (noa_duration >= vif->bss_conf.beacon_int)
4532 			return -EINVAL;
4533 
4534 		mvm->noa_duration = noa_duration;
4535 		mvm->noa_vif = vif;
4536 
4537 		return iwl_mvm_update_quotas(mvm, true, NULL);
4538 	case IWL_MVM_TM_CMD_SET_BEACON_FILTER:
4539 		/* must be associated client vif - ignore authorized */
4540 		if (!vif || vif->type != NL80211_IFTYPE_STATION ||
4541 		    !vif->bss_conf.assoc || !vif->bss_conf.dtim_period ||
4542 		    !tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE])
4543 			return -EINVAL;
4544 
4545 		if (nla_get_u32(tb[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE]))
4546 			return iwl_mvm_enable_beacon_filter(mvm, vif, 0);
4547 		return iwl_mvm_disable_beacon_filter(mvm, vif, 0);
4548 	}
4549 
4550 	return -EOPNOTSUPP;
4551 }
4552 
4553 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw *hw,
4554 				    struct ieee80211_vif *vif,
4555 				    void *data, int len)
4556 {
4557 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4558 	int err;
4559 
4560 	mutex_lock(&mvm->mutex);
4561 	err = __iwl_mvm_mac_testmode_cmd(mvm, vif, data, len);
4562 	mutex_unlock(&mvm->mutex);
4563 
4564 	return err;
4565 }
4566 #endif
4567 
4568 static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
4569 				   struct ieee80211_vif *vif,
4570 				   struct ieee80211_channel_switch *chsw)
4571 {
4572 	/* By implementing this operation, we prevent mac80211 from
4573 	 * starting its own channel switch timer, so that we can call
4574 	 * ieee80211_chswitch_done() ourselves at the right time
4575 	 * (which is when the absence time event starts).
4576 	 */
4577 
4578 	IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
4579 			   "dummy channel switch op\n");
4580 }
4581 
4582 static int iwl_mvm_schedule_client_csa(struct iwl_mvm *mvm,
4583 				       struct ieee80211_vif *vif,
4584 				       struct ieee80211_channel_switch *chsw)
4585 {
4586 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4587 	struct iwl_chan_switch_te_cmd cmd = {
4588 		.mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
4589 							  mvmvif->color)),
4590 		.action = cpu_to_le32(FW_CTXT_ACTION_ADD),
4591 		.tsf = cpu_to_le32(chsw->timestamp),
4592 		.cs_count = chsw->count,
4593 		.cs_mode = chsw->block_tx,
4594 	};
4595 
4596 	lockdep_assert_held(&mvm->mutex);
4597 
4598 	if (chsw->delay)
4599 		cmd.cs_delayed_bcn_count =
4600 			DIV_ROUND_UP(chsw->delay, vif->bss_conf.beacon_int);
4601 
4602 	return iwl_mvm_send_cmd_pdu(mvm,
4603 				    WIDE_ID(MAC_CONF_GROUP,
4604 					    CHANNEL_SWITCH_TIME_EVENT_CMD),
4605 				    0, sizeof(cmd), &cmd);
4606 }
4607 
4608 static int iwl_mvm_old_pre_chan_sw_sta(struct iwl_mvm *mvm,
4609 				       struct ieee80211_vif *vif,
4610 				       struct ieee80211_channel_switch *chsw)
4611 {
4612 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4613 	u32 apply_time;
4614 
4615 	/* Schedule the time event to a bit before beacon 1,
4616 	 * to make sure we're in the new channel when the
4617 	 * GO/AP arrives. In case count <= 1 immediately schedule the
4618 	 * TE (this might result with some packet loss or connection
4619 	 * loss).
4620 	 */
4621 	if (chsw->count <= 1)
4622 		apply_time = 0;
4623 	else
4624 		apply_time = chsw->device_timestamp +
4625 			((vif->bss_conf.beacon_int * (chsw->count - 1) -
4626 			  IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
4627 
4628 	if (chsw->block_tx)
4629 		iwl_mvm_csa_client_absent(mvm, vif);
4630 
4631 	if (mvmvif->bf_data.bf_enabled) {
4632 		int ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
4633 
4634 		if (ret)
4635 			return ret;
4636 	}
4637 
4638 	iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
4639 				    apply_time);
4640 
4641 	return 0;
4642 }
4643 
4644 #define IWL_MAX_CSA_BLOCK_TX 1500
4645 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
4646 				      struct ieee80211_vif *vif,
4647 				      struct ieee80211_channel_switch *chsw)
4648 {
4649 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4650 	struct ieee80211_vif *csa_vif;
4651 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4652 	int ret;
4653 
4654 	mutex_lock(&mvm->mutex);
4655 
4656 	mvmvif->csa_failed = false;
4657 
4658 	IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
4659 			   chsw->chandef.center_freq1);
4660 
4661 	iwl_fw_dbg_trigger_simple_stop(&mvm->fwrt,
4662 				       ieee80211_vif_to_wdev(vif),
4663 				       FW_DBG_TRIGGER_CHANNEL_SWITCH);
4664 
4665 	switch (vif->type) {
4666 	case NL80211_IFTYPE_AP:
4667 		csa_vif =
4668 			rcu_dereference_protected(mvm->csa_vif,
4669 						  lockdep_is_held(&mvm->mutex));
4670 		if (WARN_ONCE(csa_vif && csa_vif->csa_active,
4671 			      "Another CSA is already in progress")) {
4672 			ret = -EBUSY;
4673 			goto out_unlock;
4674 		}
4675 
4676 		/* we still didn't unblock tx. prevent new CS meanwhile */
4677 		if (rcu_dereference_protected(mvm->csa_tx_blocked_vif,
4678 					      lockdep_is_held(&mvm->mutex))) {
4679 			ret = -EBUSY;
4680 			goto out_unlock;
4681 		}
4682 
4683 		rcu_assign_pointer(mvm->csa_vif, vif);
4684 
4685 		if (WARN_ONCE(mvmvif->csa_countdown,
4686 			      "Previous CSA countdown didn't complete")) {
4687 			ret = -EBUSY;
4688 			goto out_unlock;
4689 		}
4690 
4691 		mvmvif->csa_target_freq = chsw->chandef.chan->center_freq;
4692 
4693 		break;
4694 	case NL80211_IFTYPE_STATION:
4695 		/*
4696 		 * In the new flow FW is in charge of timing the switch so there
4697 		 * is no need for all of this
4698 		 */
4699 		if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
4700 					    CHANNEL_SWITCH_ERROR_NOTIF,
4701 					    0))
4702 			break;
4703 
4704 		/*
4705 		 * We haven't configured the firmware to be associated yet since
4706 		 * we don't know the dtim period. In this case, the firmware can't
4707 		 * track the beacons.
4708 		 */
4709 		if (!vif->bss_conf.assoc || !vif->bss_conf.dtim_period) {
4710 			ret = -EBUSY;
4711 			goto out_unlock;
4712 		}
4713 
4714 		if (chsw->delay > IWL_MAX_CSA_BLOCK_TX)
4715 			schedule_delayed_work(&mvmvif->csa_work, 0);
4716 
4717 		if (chsw->block_tx) {
4718 			/*
4719 			 * In case of undetermined / long time with immediate
4720 			 * quiet monitor status to gracefully disconnect
4721 			 */
4722 			if (!chsw->count ||
4723 			    chsw->count * vif->bss_conf.beacon_int >
4724 			    IWL_MAX_CSA_BLOCK_TX)
4725 				schedule_delayed_work(&mvmvif->csa_work,
4726 						      msecs_to_jiffies(IWL_MAX_CSA_BLOCK_TX));
4727 		}
4728 
4729 		if (!fw_has_capa(&mvm->fw->ucode_capa,
4730 				 IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD)) {
4731 			ret = iwl_mvm_old_pre_chan_sw_sta(mvm, vif, chsw);
4732 			if (ret)
4733 				goto out_unlock;
4734 		} else {
4735 			iwl_mvm_schedule_client_csa(mvm, vif, chsw);
4736 		}
4737 
4738 		mvmvif->csa_count = chsw->count;
4739 		mvmvif->csa_misbehave = false;
4740 		break;
4741 	default:
4742 		break;
4743 	}
4744 
4745 	mvmvif->ps_disabled = true;
4746 
4747 	ret = iwl_mvm_power_update_ps(mvm);
4748 	if (ret)
4749 		goto out_unlock;
4750 
4751 	/* we won't be on this channel any longer */
4752 	iwl_mvm_teardown_tdls_peers(mvm);
4753 
4754 out_unlock:
4755 	mutex_unlock(&mvm->mutex);
4756 
4757 	return ret;
4758 }
4759 
4760 static void iwl_mvm_channel_switch_rx_beacon(struct ieee80211_hw *hw,
4761 					     struct ieee80211_vif *vif,
4762 					     struct ieee80211_channel_switch *chsw)
4763 {
4764 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4765 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
4766 	struct iwl_chan_switch_te_cmd cmd = {
4767 		.mac_id = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
4768 							  mvmvif->color)),
4769 		.action = cpu_to_le32(FW_CTXT_ACTION_MODIFY),
4770 		.tsf = cpu_to_le32(chsw->timestamp),
4771 		.cs_count = chsw->count,
4772 		.cs_mode = chsw->block_tx,
4773 	};
4774 
4775 	/*
4776 	 * In the new flow FW is in charge of timing the switch so there is no
4777 	 * need for all of this
4778 	 */
4779 	if (iwl_fw_lookup_notif_ver(mvm->fw, MAC_CONF_GROUP,
4780 				    CHANNEL_SWITCH_ERROR_NOTIF, 0))
4781 		return;
4782 
4783 	if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CS_MODIFY))
4784 		return;
4785 
4786 	IWL_DEBUG_MAC80211(mvm, "Modify CSA on mac %d count = %d (old %d) mode = %d\n",
4787 			   mvmvif->id, chsw->count, mvmvif->csa_count, chsw->block_tx);
4788 
4789 	if (chsw->count >= mvmvif->csa_count && chsw->block_tx) {
4790 		if (mvmvif->csa_misbehave) {
4791 			/* Second time, give up on this AP*/
4792 			iwl_mvm_abort_channel_switch(hw, vif);
4793 			ieee80211_chswitch_done(vif, false);
4794 			mvmvif->csa_misbehave = false;
4795 			return;
4796 		}
4797 		mvmvif->csa_misbehave = true;
4798 	}
4799 	mvmvif->csa_count = chsw->count;
4800 
4801 	mutex_lock(&mvm->mutex);
4802 	if (mvmvif->csa_failed)
4803 		goto out_unlock;
4804 
4805 	WARN_ON(iwl_mvm_send_cmd_pdu(mvm,
4806 				     WIDE_ID(MAC_CONF_GROUP,
4807 					     CHANNEL_SWITCH_TIME_EVENT_CMD),
4808 				     0, sizeof(cmd), &cmd));
4809 out_unlock:
4810 	mutex_unlock(&mvm->mutex);
4811 }
4812 
4813 static void iwl_mvm_flush_no_vif(struct iwl_mvm *mvm, u32 queues, bool drop)
4814 {
4815 	int i;
4816 
4817 	if (!iwl_mvm_has_new_tx_api(mvm)) {
4818 		if (drop) {
4819 			mutex_lock(&mvm->mutex);
4820 			iwl_mvm_flush_tx_path(mvm,
4821 				iwl_mvm_flushable_queues(mvm) & queues);
4822 			mutex_unlock(&mvm->mutex);
4823 		} else {
4824 			iwl_trans_wait_tx_queues_empty(mvm->trans, queues);
4825 		}
4826 		return;
4827 	}
4828 
4829 	mutex_lock(&mvm->mutex);
4830 	for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
4831 		struct ieee80211_sta *sta;
4832 
4833 		sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
4834 						lockdep_is_held(&mvm->mutex));
4835 		if (IS_ERR_OR_NULL(sta))
4836 			continue;
4837 
4838 		if (drop)
4839 			iwl_mvm_flush_sta_tids(mvm, i, 0xFFFF);
4840 		else
4841 			iwl_mvm_wait_sta_queues_empty(mvm,
4842 					iwl_mvm_sta_from_mac80211(sta));
4843 	}
4844 	mutex_unlock(&mvm->mutex);
4845 }
4846 
4847 static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
4848 			      struct ieee80211_vif *vif, u32 queues, bool drop)
4849 {
4850 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4851 	struct iwl_mvm_vif *mvmvif;
4852 	struct iwl_mvm_sta *mvmsta;
4853 	struct ieee80211_sta *sta;
4854 	int i;
4855 	u32 msk = 0;
4856 
4857 	if (!vif) {
4858 		iwl_mvm_flush_no_vif(mvm, queues, drop);
4859 		return;
4860 	}
4861 
4862 	if (vif->type != NL80211_IFTYPE_STATION)
4863 		return;
4864 
4865 	/* Make sure we're done with the deferred traffic before flushing */
4866 	flush_work(&mvm->add_stream_wk);
4867 
4868 	mutex_lock(&mvm->mutex);
4869 	mvmvif = iwl_mvm_vif_from_mac80211(vif);
4870 
4871 	/* flush the AP-station and all TDLS peers */
4872 	for (i = 0; i < mvm->fw->ucode_capa.num_stations; i++) {
4873 		sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
4874 						lockdep_is_held(&mvm->mutex));
4875 		if (IS_ERR_OR_NULL(sta))
4876 			continue;
4877 
4878 		mvmsta = iwl_mvm_sta_from_mac80211(sta);
4879 		if (mvmsta->vif != vif)
4880 			continue;
4881 
4882 		/* make sure only TDLS peers or the AP are flushed */
4883 		WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
4884 
4885 		if (drop) {
4886 			if (iwl_mvm_flush_sta(mvm, mvmsta, false))
4887 				IWL_ERR(mvm, "flush request fail\n");
4888 		} else {
4889 			msk |= mvmsta->tfd_queue_msk;
4890 			if (iwl_mvm_has_new_tx_api(mvm))
4891 				iwl_mvm_wait_sta_queues_empty(mvm, mvmsta);
4892 		}
4893 	}
4894 
4895 	mutex_unlock(&mvm->mutex);
4896 
4897 	/* this can take a while, and we may need/want other operations
4898 	 * to succeed while doing this, so do it without the mutex held
4899 	 */
4900 	if (!drop && !iwl_mvm_has_new_tx_api(mvm))
4901 		iwl_trans_wait_tx_queues_empty(mvm->trans, msk);
4902 }
4903 
4904 static int iwl_mvm_mac_get_survey(struct ieee80211_hw *hw, int idx,
4905 				  struct survey_info *survey)
4906 {
4907 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
4908 	int ret;
4909 
4910 	memset(survey, 0, sizeof(*survey));
4911 
4912 	/* only support global statistics right now */
4913 	if (idx != 0)
4914 		return -ENOENT;
4915 
4916 	if (!fw_has_capa(&mvm->fw->ucode_capa,
4917 			 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS))
4918 		return -ENOENT;
4919 
4920 	mutex_lock(&mvm->mutex);
4921 
4922 	if (iwl_mvm_firmware_running(mvm)) {
4923 		ret = iwl_mvm_request_statistics(mvm, false);
4924 		if (ret)
4925 			goto out;
4926 	}
4927 
4928 	survey->filled = SURVEY_INFO_TIME |
4929 			 SURVEY_INFO_TIME_RX |
4930 			 SURVEY_INFO_TIME_TX |
4931 			 SURVEY_INFO_TIME_SCAN;
4932 	survey->time = mvm->accu_radio_stats.on_time_rf +
4933 		       mvm->radio_stats.on_time_rf;
4934 	do_div(survey->time, USEC_PER_MSEC);
4935 
4936 	survey->time_rx = mvm->accu_radio_stats.rx_time +
4937 			  mvm->radio_stats.rx_time;
4938 	do_div(survey->time_rx, USEC_PER_MSEC);
4939 
4940 	survey->time_tx = mvm->accu_radio_stats.tx_time +
4941 			  mvm->radio_stats.tx_time;
4942 	do_div(survey->time_tx, USEC_PER_MSEC);
4943 
4944 	survey->time_scan = mvm->accu_radio_stats.on_time_scan +
4945 			    mvm->radio_stats.on_time_scan;
4946 	do_div(survey->time_scan, USEC_PER_MSEC);
4947 
4948 	ret = 0;
4949  out:
4950 	mutex_unlock(&mvm->mutex);
4951 	return ret;
4952 }
4953 
4954 static void iwl_mvm_set_sta_rate(u32 rate_n_flags, struct rate_info *rinfo)
4955 {
4956 	u32 format = rate_n_flags & RATE_MCS_MOD_TYPE_MSK;
4957 
4958 	switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {
4959 	case RATE_MCS_CHAN_WIDTH_20:
4960 		rinfo->bw = RATE_INFO_BW_20;
4961 		break;
4962 	case RATE_MCS_CHAN_WIDTH_40:
4963 		rinfo->bw = RATE_INFO_BW_40;
4964 		break;
4965 	case RATE_MCS_CHAN_WIDTH_80:
4966 		rinfo->bw = RATE_INFO_BW_80;
4967 		break;
4968 	case RATE_MCS_CHAN_WIDTH_160:
4969 		rinfo->bw = RATE_INFO_BW_160;
4970 		break;
4971 	}
4972 
4973 	if (format == RATE_MCS_CCK_MSK ||
4974 	    format == RATE_MCS_LEGACY_OFDM_MSK) {
4975 		int rate = u32_get_bits(rate_n_flags, RATE_LEGACY_RATE_MSK);
4976 
4977 		/* add the offset needed to get to the legacy ofdm indices */
4978 		if (format == RATE_MCS_LEGACY_OFDM_MSK)
4979 			rate += IWL_FIRST_OFDM_RATE;
4980 
4981 		switch (rate) {
4982 		case IWL_RATE_1M_INDEX:
4983 			rinfo->legacy = 10;
4984 			break;
4985 		case IWL_RATE_2M_INDEX:
4986 			rinfo->legacy = 20;
4987 			break;
4988 		case IWL_RATE_5M_INDEX:
4989 			rinfo->legacy = 55;
4990 			break;
4991 		case IWL_RATE_11M_INDEX:
4992 			rinfo->legacy = 110;
4993 			break;
4994 		case IWL_RATE_6M_INDEX:
4995 			rinfo->legacy = 60;
4996 			break;
4997 		case IWL_RATE_9M_INDEX:
4998 			rinfo->legacy = 90;
4999 			break;
5000 		case IWL_RATE_12M_INDEX:
5001 			rinfo->legacy = 120;
5002 			break;
5003 		case IWL_RATE_18M_INDEX:
5004 			rinfo->legacy = 180;
5005 			break;
5006 		case IWL_RATE_24M_INDEX:
5007 			rinfo->legacy = 240;
5008 			break;
5009 		case IWL_RATE_36M_INDEX:
5010 			rinfo->legacy = 360;
5011 			break;
5012 		case IWL_RATE_48M_INDEX:
5013 			rinfo->legacy = 480;
5014 			break;
5015 		case IWL_RATE_54M_INDEX:
5016 			rinfo->legacy = 540;
5017 		}
5018 		return;
5019 	}
5020 
5021 	rinfo->nss = u32_get_bits(rate_n_flags,
5022 				  RATE_MCS_NSS_MSK) + 1;
5023 	rinfo->mcs = format == RATE_MCS_HT_MSK ?
5024 		RATE_HT_MCS_INDEX(rate_n_flags) :
5025 		u32_get_bits(rate_n_flags, RATE_MCS_CODE_MSK);
5026 
5027 	if (format == RATE_MCS_HE_MSK) {
5028 		u32 gi_ltf = u32_get_bits(rate_n_flags,
5029 					  RATE_MCS_HE_GI_LTF_MSK);
5030 
5031 		rinfo->flags |= RATE_INFO_FLAGS_HE_MCS;
5032 
5033 		if (rate_n_flags & RATE_MCS_HE_106T_MSK) {
5034 			rinfo->bw = RATE_INFO_BW_HE_RU;
5035 			rinfo->he_ru_alloc = NL80211_RATE_INFO_HE_RU_ALLOC_106;
5036 		}
5037 
5038 		switch (rate_n_flags & RATE_MCS_HE_TYPE_MSK) {
5039 		case RATE_MCS_HE_TYPE_SU:
5040 		case RATE_MCS_HE_TYPE_EXT_SU:
5041 			if (gi_ltf == 0 || gi_ltf == 1)
5042 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
5043 			else if (gi_ltf == 2)
5044 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
5045 			else if (gi_ltf == 3)
5046 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
5047 			else
5048 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
5049 			break;
5050 		case RATE_MCS_HE_TYPE_MU:
5051 			if (gi_ltf == 0 || gi_ltf == 1)
5052 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_0_8;
5053 			else if (gi_ltf == 2)
5054 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
5055 			else
5056 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
5057 			break;
5058 		case RATE_MCS_HE_TYPE_TRIG:
5059 			if (gi_ltf == 0 || gi_ltf == 1)
5060 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_1_6;
5061 			else
5062 				rinfo->he_gi = NL80211_RATE_INFO_HE_GI_3_2;
5063 			break;
5064 		}
5065 
5066 		if (rate_n_flags & RATE_HE_DUAL_CARRIER_MODE_MSK)
5067 			rinfo->he_dcm = 1;
5068 		return;
5069 	}
5070 
5071 	if (rate_n_flags & RATE_MCS_SGI_MSK)
5072 		rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
5073 
5074 	if (format == RATE_MCS_HT_MSK) {
5075 		rinfo->flags |= RATE_INFO_FLAGS_MCS;
5076 
5077 	} else if (format == RATE_MCS_VHT_MSK) {
5078 		rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
5079 	}
5080 
5081 }
5082 
5083 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw *hw,
5084 				       struct ieee80211_vif *vif,
5085 				       struct ieee80211_sta *sta,
5086 				       struct station_info *sinfo)
5087 {
5088 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5089 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5090 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
5091 
5092 	if (mvmsta->avg_energy) {
5093 		sinfo->signal_avg = -(s8)mvmsta->avg_energy;
5094 		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_SIGNAL_AVG);
5095 	}
5096 
5097 	if (iwl_mvm_has_tlc_offload(mvm)) {
5098 		struct iwl_lq_sta_rs_fw *lq_sta = &mvmsta->lq_sta.rs_fw;
5099 
5100 		iwl_mvm_set_sta_rate(lq_sta->last_rate_n_flags, &sinfo->txrate);
5101 		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_TX_BITRATE);
5102 	}
5103 
5104 	/* if beacon filtering isn't on mac80211 does it anyway */
5105 	if (!(vif->driver_flags & IEEE80211_VIF_BEACON_FILTER))
5106 		return;
5107 
5108 	if (!vif->bss_conf.assoc)
5109 		return;
5110 
5111 	mutex_lock(&mvm->mutex);
5112 
5113 	if (mvmvif->ap_sta_id != mvmsta->sta_id)
5114 		goto unlock;
5115 
5116 	if (iwl_mvm_request_statistics(mvm, false))
5117 		goto unlock;
5118 
5119 	sinfo->rx_beacon = mvmvif->beacon_stats.num_beacons +
5120 			   mvmvif->beacon_stats.accu_num_beacons;
5121 	sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_RX);
5122 	if (mvmvif->beacon_stats.avg_signal) {
5123 		/* firmware only reports a value after RXing a few beacons */
5124 		sinfo->rx_beacon_signal_avg = mvmvif->beacon_stats.avg_signal;
5125 		sinfo->filled |= BIT_ULL(NL80211_STA_INFO_BEACON_SIGNAL_AVG);
5126 	}
5127  unlock:
5128 	mutex_unlock(&mvm->mutex);
5129 }
5130 
5131 static void iwl_mvm_event_mlme_callback_ini(struct iwl_mvm *mvm,
5132 					    struct ieee80211_vif *vif,
5133 					    const  struct ieee80211_mlme_event *mlme)
5134 {
5135 	if ((mlme->data == ASSOC_EVENT || mlme->data == AUTH_EVENT) &&
5136 	    (mlme->status == MLME_DENIED || mlme->status == MLME_TIMEOUT)) {
5137 		iwl_dbg_tlv_time_point(&mvm->fwrt,
5138 				       IWL_FW_INI_TIME_POINT_ASSOC_FAILED,
5139 				       NULL);
5140 		return;
5141 	}
5142 
5143 	if (mlme->data == DEAUTH_RX_EVENT || mlme->data == DEAUTH_TX_EVENT) {
5144 		iwl_dbg_tlv_time_point(&mvm->fwrt,
5145 				       IWL_FW_INI_TIME_POINT_DEASSOC,
5146 				       NULL);
5147 		return;
5148 	}
5149 }
5150 
5151 static void iwl_mvm_event_mlme_callback(struct iwl_mvm *mvm,
5152 					struct ieee80211_vif *vif,
5153 					const struct ieee80211_event *event)
5154 {
5155 #define CHECK_MLME_TRIGGER(_cnt, _fmt...)				\
5156 	do {								\
5157 		if ((trig_mlme->_cnt) && --(trig_mlme->_cnt))		\
5158 			break;						\
5159 		iwl_fw_dbg_collect_trig(&(mvm)->fwrt, trig, _fmt);	\
5160 	} while (0)
5161 
5162 	struct iwl_fw_dbg_trigger_tlv *trig;
5163 	struct iwl_fw_dbg_trigger_mlme *trig_mlme;
5164 
5165 	if (iwl_trans_dbg_ini_valid(mvm->trans)) {
5166 		iwl_mvm_event_mlme_callback_ini(mvm, vif, &event->u.mlme);
5167 		return;
5168 	}
5169 
5170 	trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
5171 				     FW_DBG_TRIGGER_MLME);
5172 	if (!trig)
5173 		return;
5174 
5175 	trig_mlme = (void *)trig->data;
5176 
5177 	if (event->u.mlme.data == ASSOC_EVENT) {
5178 		if (event->u.mlme.status == MLME_DENIED)
5179 			CHECK_MLME_TRIGGER(stop_assoc_denied,
5180 					   "DENIED ASSOC: reason %d",
5181 					    event->u.mlme.reason);
5182 		else if (event->u.mlme.status == MLME_TIMEOUT)
5183 			CHECK_MLME_TRIGGER(stop_assoc_timeout,
5184 					   "ASSOC TIMEOUT");
5185 	} else if (event->u.mlme.data == AUTH_EVENT) {
5186 		if (event->u.mlme.status == MLME_DENIED)
5187 			CHECK_MLME_TRIGGER(stop_auth_denied,
5188 					   "DENIED AUTH: reason %d",
5189 					   event->u.mlme.reason);
5190 		else if (event->u.mlme.status == MLME_TIMEOUT)
5191 			CHECK_MLME_TRIGGER(stop_auth_timeout,
5192 					   "AUTH TIMEOUT");
5193 	} else if (event->u.mlme.data == DEAUTH_RX_EVENT) {
5194 		CHECK_MLME_TRIGGER(stop_rx_deauth,
5195 				   "DEAUTH RX %d", event->u.mlme.reason);
5196 	} else if (event->u.mlme.data == DEAUTH_TX_EVENT) {
5197 		CHECK_MLME_TRIGGER(stop_tx_deauth,
5198 				   "DEAUTH TX %d", event->u.mlme.reason);
5199 	}
5200 #undef CHECK_MLME_TRIGGER
5201 }
5202 
5203 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm *mvm,
5204 					  struct ieee80211_vif *vif,
5205 					  const struct ieee80211_event *event)
5206 {
5207 	struct iwl_fw_dbg_trigger_tlv *trig;
5208 	struct iwl_fw_dbg_trigger_ba *ba_trig;
5209 
5210 	trig = iwl_fw_dbg_trigger_on(&mvm->fwrt, ieee80211_vif_to_wdev(vif),
5211 				     FW_DBG_TRIGGER_BA);
5212 	if (!trig)
5213 		return;
5214 
5215 	ba_trig = (void *)trig->data;
5216 
5217 	if (!(le16_to_cpu(ba_trig->rx_bar) & BIT(event->u.ba.tid)))
5218 		return;
5219 
5220 	iwl_fw_dbg_collect_trig(&mvm->fwrt, trig,
5221 				"BAR received from %pM, tid %d, ssn %d",
5222 				event->u.ba.sta->addr, event->u.ba.tid,
5223 				event->u.ba.ssn);
5224 }
5225 
5226 static void iwl_mvm_mac_event_callback(struct ieee80211_hw *hw,
5227 				       struct ieee80211_vif *vif,
5228 				       const struct ieee80211_event *event)
5229 {
5230 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5231 
5232 	switch (event->type) {
5233 	case MLME_EVENT:
5234 		iwl_mvm_event_mlme_callback(mvm, vif, event);
5235 		break;
5236 	case BAR_RX_EVENT:
5237 		iwl_mvm_event_bar_rx_callback(mvm, vif, event);
5238 		break;
5239 	case BA_FRAME_TIMEOUT:
5240 		iwl_mvm_event_frame_timeout_callback(mvm, vif, event->u.ba.sta,
5241 						     event->u.ba.tid);
5242 		break;
5243 	default:
5244 		break;
5245 	}
5246 }
5247 
5248 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm *mvm,
5249 				     enum iwl_mvm_rxq_notif_type type,
5250 				     bool sync,
5251 				     const void *data, u32 size)
5252 {
5253 	struct {
5254 		struct iwl_rxq_sync_cmd cmd;
5255 		struct iwl_mvm_internal_rxq_notif notif;
5256 	} __packed cmd = {
5257 		.cmd.rxq_mask = cpu_to_le32(BIT(mvm->trans->num_rx_queues) - 1),
5258 		.cmd.count =
5259 			cpu_to_le32(sizeof(struct iwl_mvm_internal_rxq_notif) +
5260 				    size),
5261 		.notif.type = type,
5262 		.notif.sync = sync,
5263 	};
5264 	struct iwl_host_cmd hcmd = {
5265 		.id = WIDE_ID(DATA_PATH_GROUP, TRIGGER_RX_QUEUES_NOTIF_CMD),
5266 		.data[0] = &cmd,
5267 		.len[0] = sizeof(cmd),
5268 		.data[1] = data,
5269 		.len[1] = size,
5270 		.flags = sync ? 0 : CMD_ASYNC,
5271 	};
5272 	int ret;
5273 
5274 	/* size must be a multiple of DWORD */
5275 	if (WARN_ON(cmd.cmd.count & cpu_to_le32(3)))
5276 		return;
5277 
5278 	if (!iwl_mvm_has_new_rx_api(mvm))
5279 		return;
5280 
5281 	if (sync) {
5282 		cmd.notif.cookie = mvm->queue_sync_cookie;
5283 		mvm->queue_sync_state = (1 << mvm->trans->num_rx_queues) - 1;
5284 	}
5285 
5286 	ret = iwl_mvm_send_cmd(mvm, &hcmd);
5287 	if (ret) {
5288 		IWL_ERR(mvm, "Failed to trigger RX queues sync (%d)\n", ret);
5289 		goto out;
5290 	}
5291 
5292 	if (sync) {
5293 		lockdep_assert_held(&mvm->mutex);
5294 		ret = wait_event_timeout(mvm->rx_sync_waitq,
5295 					 READ_ONCE(mvm->queue_sync_state) == 0 ||
5296 					 iwl_mvm_is_radio_killed(mvm),
5297 					 HZ);
5298 		WARN_ONCE(!ret && !iwl_mvm_is_radio_killed(mvm),
5299 			  "queue sync: failed to sync, state is 0x%lx\n",
5300 			  mvm->queue_sync_state);
5301 	}
5302 
5303 out:
5304 	if (sync) {
5305 		mvm->queue_sync_state = 0;
5306 		mvm->queue_sync_cookie++;
5307 	}
5308 }
5309 
5310 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw *hw)
5311 {
5312 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5313 
5314 	mutex_lock(&mvm->mutex);
5315 	iwl_mvm_sync_rx_queues_internal(mvm, IWL_MVM_RXQ_EMPTY, true, NULL, 0);
5316 	mutex_unlock(&mvm->mutex);
5317 }
5318 
5319 static int
5320 iwl_mvm_mac_get_ftm_responder_stats(struct ieee80211_hw *hw,
5321 				    struct ieee80211_vif *vif,
5322 				    struct cfg80211_ftm_responder_stats *stats)
5323 {
5324 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5325 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
5326 
5327 	if (vif->p2p || vif->type != NL80211_IFTYPE_AP ||
5328 	    !mvmvif->ap_ibss_active || !vif->bss_conf.ftm_responder)
5329 		return -EINVAL;
5330 
5331 	mutex_lock(&mvm->mutex);
5332 	*stats = mvm->ftm_resp_stats;
5333 	mutex_unlock(&mvm->mutex);
5334 
5335 	stats->filled = BIT(NL80211_FTM_STATS_SUCCESS_NUM) |
5336 			BIT(NL80211_FTM_STATS_PARTIAL_NUM) |
5337 			BIT(NL80211_FTM_STATS_FAILED_NUM) |
5338 			BIT(NL80211_FTM_STATS_ASAP_NUM) |
5339 			BIT(NL80211_FTM_STATS_NON_ASAP_NUM) |
5340 			BIT(NL80211_FTM_STATS_TOTAL_DURATION_MSEC) |
5341 			BIT(NL80211_FTM_STATS_UNKNOWN_TRIGGERS_NUM) |
5342 			BIT(NL80211_FTM_STATS_RESCHEDULE_REQUESTS_NUM) |
5343 			BIT(NL80211_FTM_STATS_OUT_OF_WINDOW_TRIGGERS_NUM);
5344 
5345 	return 0;
5346 }
5347 
5348 static int iwl_mvm_start_pmsr(struct ieee80211_hw *hw,
5349 			      struct ieee80211_vif *vif,
5350 			      struct cfg80211_pmsr_request *request)
5351 {
5352 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5353 	int ret;
5354 
5355 	mutex_lock(&mvm->mutex);
5356 	ret = iwl_mvm_ftm_start(mvm, vif, request);
5357 	mutex_unlock(&mvm->mutex);
5358 
5359 	return ret;
5360 }
5361 
5362 static void iwl_mvm_abort_pmsr(struct ieee80211_hw *hw,
5363 			       struct ieee80211_vif *vif,
5364 			       struct cfg80211_pmsr_request *request)
5365 {
5366 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5367 
5368 	mutex_lock(&mvm->mutex);
5369 	iwl_mvm_ftm_abort(mvm, request);
5370 	mutex_unlock(&mvm->mutex);
5371 }
5372 
5373 static bool iwl_mvm_can_hw_csum(struct sk_buff *skb)
5374 {
5375 	u8 protocol = ip_hdr(skb)->protocol;
5376 
5377 	if (!IS_ENABLED(CONFIG_INET))
5378 		return false;
5379 
5380 	return protocol == IPPROTO_TCP || protocol == IPPROTO_UDP;
5381 }
5382 
5383 static bool iwl_mvm_mac_can_aggregate(struct ieee80211_hw *hw,
5384 				      struct sk_buff *head,
5385 				      struct sk_buff *skb)
5386 {
5387 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
5388 
5389 	if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_BZ)
5390 		return iwl_mvm_tx_csum_bz(mvm, head, true) ==
5391 		       iwl_mvm_tx_csum_bz(mvm, skb, true);
5392 
5393 	/* For now don't aggregate IPv6 in AMSDU */
5394 	if (skb->protocol != htons(ETH_P_IP))
5395 		return false;
5396 
5397 	if (!iwl_mvm_is_csum_supported(mvm))
5398 		return true;
5399 
5400 	return iwl_mvm_can_hw_csum(skb) == iwl_mvm_can_hw_csum(head);
5401 }
5402 
5403 const struct ieee80211_ops iwl_mvm_hw_ops = {
5404 	.tx = iwl_mvm_mac_tx,
5405 	.wake_tx_queue = iwl_mvm_mac_wake_tx_queue,
5406 	.ampdu_action = iwl_mvm_mac_ampdu_action,
5407 	.get_antenna = iwl_mvm_op_get_antenna,
5408 	.start = iwl_mvm_mac_start,
5409 	.reconfig_complete = iwl_mvm_mac_reconfig_complete,
5410 	.stop = iwl_mvm_mac_stop,
5411 	.add_interface = iwl_mvm_mac_add_interface,
5412 	.remove_interface = iwl_mvm_mac_remove_interface,
5413 	.config = iwl_mvm_mac_config,
5414 	.prepare_multicast = iwl_mvm_prepare_multicast,
5415 	.configure_filter = iwl_mvm_configure_filter,
5416 	.config_iface_filter = iwl_mvm_config_iface_filter,
5417 	.bss_info_changed = iwl_mvm_bss_info_changed,
5418 	.hw_scan = iwl_mvm_mac_hw_scan,
5419 	.cancel_hw_scan = iwl_mvm_mac_cancel_hw_scan,
5420 	.sta_pre_rcu_remove = iwl_mvm_sta_pre_rcu_remove,
5421 	.sta_state = iwl_mvm_mac_sta_state,
5422 	.sta_notify = iwl_mvm_mac_sta_notify,
5423 	.allow_buffered_frames = iwl_mvm_mac_allow_buffered_frames,
5424 	.release_buffered_frames = iwl_mvm_mac_release_buffered_frames,
5425 	.set_rts_threshold = iwl_mvm_mac_set_rts_threshold,
5426 	.sta_rc_update = iwl_mvm_sta_rc_update,
5427 	.conf_tx = iwl_mvm_mac_conf_tx,
5428 	.mgd_prepare_tx = iwl_mvm_mac_mgd_prepare_tx,
5429 	.mgd_complete_tx = iwl_mvm_mac_mgd_complete_tx,
5430 	.mgd_protect_tdls_discover = iwl_mvm_mac_mgd_protect_tdls_discover,
5431 	.flush = iwl_mvm_mac_flush,
5432 	.sched_scan_start = iwl_mvm_mac_sched_scan_start,
5433 	.sched_scan_stop = iwl_mvm_mac_sched_scan_stop,
5434 	.set_key = iwl_mvm_mac_set_key,
5435 	.update_tkip_key = iwl_mvm_mac_update_tkip_key,
5436 	.remain_on_channel = iwl_mvm_roc,
5437 	.cancel_remain_on_channel = iwl_mvm_cancel_roc,
5438 	.add_chanctx = iwl_mvm_add_chanctx,
5439 	.remove_chanctx = iwl_mvm_remove_chanctx,
5440 	.change_chanctx = iwl_mvm_change_chanctx,
5441 	.assign_vif_chanctx = iwl_mvm_assign_vif_chanctx,
5442 	.unassign_vif_chanctx = iwl_mvm_unassign_vif_chanctx,
5443 	.switch_vif_chanctx = iwl_mvm_switch_vif_chanctx,
5444 
5445 	.start_ap = iwl_mvm_start_ap_ibss,
5446 	.stop_ap = iwl_mvm_stop_ap_ibss,
5447 	.join_ibss = iwl_mvm_start_ap_ibss,
5448 	.leave_ibss = iwl_mvm_stop_ap_ibss,
5449 
5450 	.tx_last_beacon = iwl_mvm_tx_last_beacon,
5451 
5452 	.set_tim = iwl_mvm_set_tim,
5453 
5454 	.channel_switch = iwl_mvm_channel_switch,
5455 	.pre_channel_switch = iwl_mvm_pre_channel_switch,
5456 	.post_channel_switch = iwl_mvm_post_channel_switch,
5457 	.abort_channel_switch = iwl_mvm_abort_channel_switch,
5458 	.channel_switch_rx_beacon = iwl_mvm_channel_switch_rx_beacon,
5459 
5460 	.tdls_channel_switch = iwl_mvm_tdls_channel_switch,
5461 	.tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
5462 	.tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
5463 
5464 	.event_callback = iwl_mvm_mac_event_callback,
5465 
5466 	.sync_rx_queues = iwl_mvm_sync_rx_queues,
5467 
5468 	CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
5469 
5470 #ifdef CONFIG_PM_SLEEP
5471 	/* look at d3.c */
5472 	.suspend = iwl_mvm_suspend,
5473 	.resume = iwl_mvm_resume,
5474 	.set_wakeup = iwl_mvm_set_wakeup,
5475 	.set_rekey_data = iwl_mvm_set_rekey_data,
5476 #if IS_ENABLED(CONFIG_IPV6)
5477 	.ipv6_addr_change = iwl_mvm_ipv6_addr_change,
5478 #endif
5479 	.set_default_unicast_key = iwl_mvm_set_default_unicast_key,
5480 #endif
5481 	.get_survey = iwl_mvm_mac_get_survey,
5482 	.sta_statistics = iwl_mvm_mac_sta_statistics,
5483 	.get_ftm_responder_stats = iwl_mvm_mac_get_ftm_responder_stats,
5484 	.start_pmsr = iwl_mvm_start_pmsr,
5485 	.abort_pmsr = iwl_mvm_abort_pmsr,
5486 
5487 	.can_aggregate_in_amsdu = iwl_mvm_mac_can_aggregate,
5488 #ifdef CONFIG_IWLWIFI_DEBUGFS
5489 	.sta_add_debugfs = iwl_mvm_sta_add_debugfs,
5490 #endif
5491 };
5492