1 // SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2 /*
3  * Copyright (C) 2012-2014, 2018-2023 Intel Corporation
4  * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5  * Copyright (C) 2016-2017 Intel Deutschland GmbH
6  */
7 #include <linux/etherdevice.h>
8 #include <linux/ip.h>
9 #include <linux/fs.h>
10 #include <net/cfg80211.h>
11 #include <net/ipv6.h>
12 #include <net/tcp.h>
13 #include <net/addrconf.h>
14 #include "iwl-modparams.h"
15 #include "fw-api.h"
16 #include "mvm.h"
17 #include "fw/img.h"
18 
19 void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
20 			    struct ieee80211_vif *vif,
21 			    struct cfg80211_gtk_rekey_data *data)
22 {
23 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
24 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
25 
26 	mutex_lock(&mvm->mutex);
27 
28 	mvmvif->rekey_data.kek_len = data->kek_len;
29 	mvmvif->rekey_data.kck_len = data->kck_len;
30 	memcpy(mvmvif->rekey_data.kek, data->kek, data->kek_len);
31 	memcpy(mvmvif->rekey_data.kck, data->kck, data->kck_len);
32 	mvmvif->rekey_data.akm = data->akm & 0xFF;
33 	mvmvif->rekey_data.replay_ctr =
34 		cpu_to_le64(be64_to_cpup((const __be64 *)data->replay_ctr));
35 	mvmvif->rekey_data.valid = true;
36 
37 	mutex_unlock(&mvm->mutex);
38 }
39 
40 #if IS_ENABLED(CONFIG_IPV6)
41 void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
42 			      struct ieee80211_vif *vif,
43 			      struct inet6_dev *idev)
44 {
45 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
46 	struct inet6_ifaddr *ifa;
47 	int idx = 0;
48 
49 	memset(mvmvif->tentative_addrs, 0, sizeof(mvmvif->tentative_addrs));
50 
51 	read_lock_bh(&idev->lock);
52 	list_for_each_entry(ifa, &idev->addr_list, if_list) {
53 		mvmvif->target_ipv6_addrs[idx] = ifa->addr;
54 		if (ifa->flags & IFA_F_TENTATIVE)
55 			__set_bit(idx, mvmvif->tentative_addrs);
56 		idx++;
57 		if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX)
58 			break;
59 	}
60 	read_unlock_bh(&idev->lock);
61 
62 	mvmvif->num_target_ipv6_addrs = idx;
63 }
64 #endif
65 
66 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
67 				     struct ieee80211_vif *vif, int idx)
68 {
69 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
70 
71 	mvmvif->tx_key_idx = idx;
72 }
73 
74 static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out)
75 {
76 	int i;
77 
78 	for (i = 0; i < IWL_P1K_SIZE; i++)
79 		out[i] = cpu_to_le16(p1k[i]);
80 }
81 
82 static const u8 *iwl_mvm_find_max_pn(struct ieee80211_key_conf *key,
83 				     struct iwl_mvm_key_pn *ptk_pn,
84 				     struct ieee80211_key_seq *seq,
85 				     int tid, int queues)
86 {
87 	const u8 *ret = seq->ccmp.pn;
88 	int i;
89 
90 	/* get the PN from mac80211, used on the default queue */
91 	ieee80211_get_key_rx_seq(key, tid, seq);
92 
93 	/* and use the internal data for the other queues */
94 	for (i = 1; i < queues; i++) {
95 		const u8 *tmp = ptk_pn->q[i].pn[tid];
96 
97 		if (memcmp(ret, tmp, IEEE80211_CCMP_PN_LEN) <= 0)
98 			ret = tmp;
99 	}
100 
101 	return ret;
102 }
103 
104 struct wowlan_key_reprogram_data {
105 	bool error;
106 	int wep_key_idx;
107 };
108 
109 static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw,
110 					struct ieee80211_vif *vif,
111 					struct ieee80211_sta *sta,
112 					struct ieee80211_key_conf *key,
113 					void *_data)
114 {
115 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
116 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
117 	struct wowlan_key_reprogram_data *data = _data;
118 	int ret;
119 
120 	switch (key->cipher) {
121 	case WLAN_CIPHER_SUITE_WEP40:
122 	case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */
123 		struct {
124 			struct iwl_mvm_wep_key_cmd wep_key_cmd;
125 			struct iwl_mvm_wep_key wep_key;
126 		} __packed wkc = {
127 			.wep_key_cmd.mac_id_n_color =
128 				cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
129 								mvmvif->color)),
130 			.wep_key_cmd.num_keys = 1,
131 			/* firmware sets STA_KEY_FLG_WEP_13BYTES */
132 			.wep_key_cmd.decryption_type = STA_KEY_FLG_WEP,
133 			.wep_key.key_index = key->keyidx,
134 			.wep_key.key_size = key->keylen,
135 		};
136 
137 		/*
138 		 * This will fail -- the key functions don't set support
139 		 * pairwise WEP keys. However, that's better than silently
140 		 * failing WoWLAN. Or maybe not?
141 		 */
142 		if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
143 			break;
144 
145 		memcpy(&wkc.wep_key.key[3], key->key, key->keylen);
146 		if (key->keyidx == mvmvif->tx_key_idx) {
147 			/* TX key must be at offset 0 */
148 			wkc.wep_key.key_offset = 0;
149 		} else {
150 			/* others start at 1 */
151 			data->wep_key_idx++;
152 			wkc.wep_key.key_offset = data->wep_key_idx;
153 		}
154 
155 		mutex_lock(&mvm->mutex);
156 		ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0, sizeof(wkc), &wkc);
157 		data->error = ret != 0;
158 
159 		mvm->ptk_ivlen = key->iv_len;
160 		mvm->ptk_icvlen = key->icv_len;
161 		mvm->gtk_ivlen = key->iv_len;
162 		mvm->gtk_icvlen = key->icv_len;
163 		mutex_unlock(&mvm->mutex);
164 
165 		/* don't upload key again */
166 		return;
167 	}
168 	default:
169 		data->error = true;
170 		return;
171 	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
172 	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
173 		return;
174 	case WLAN_CIPHER_SUITE_AES_CMAC:
175 		/*
176 		 * Ignore CMAC keys -- the WoWLAN firmware doesn't support them
177 		 * but we also shouldn't abort suspend due to that. It does have
178 		 * support for the IGTK key renewal, but doesn't really use the
179 		 * IGTK for anything. This means we could spuriously wake up or
180 		 * be deauthenticated, but that was considered acceptable.
181 		 */
182 		return;
183 	case WLAN_CIPHER_SUITE_TKIP:
184 	case WLAN_CIPHER_SUITE_CCMP:
185 	case WLAN_CIPHER_SUITE_GCMP:
186 	case WLAN_CIPHER_SUITE_GCMP_256:
187 		break;
188 	}
189 
190 	mutex_lock(&mvm->mutex);
191 	/*
192 	 * The D3 firmware hardcodes the key offset 0 as the key it
193 	 * uses to transmit packets to the AP, i.e. the PTK.
194 	 */
195 	if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
196 		mvm->ptk_ivlen = key->iv_len;
197 		mvm->ptk_icvlen = key->icv_len;
198 		ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 0);
199 	} else {
200 		/*
201 		 * firmware only supports TSC/RSC for a single key,
202 		 * so if there are multiple keep overwriting them
203 		 * with new ones -- this relies on mac80211 doing
204 		 * list_add_tail().
205 		 */
206 		mvm->gtk_ivlen = key->iv_len;
207 		mvm->gtk_icvlen = key->icv_len;
208 		ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 1);
209 	}
210 	mutex_unlock(&mvm->mutex);
211 	data->error = ret != 0;
212 }
213 
214 struct wowlan_key_rsc_tsc_data {
215 	struct iwl_wowlan_rsc_tsc_params_cmd_v4 *rsc_tsc;
216 	bool have_rsc_tsc;
217 };
218 
219 static void iwl_mvm_wowlan_get_rsc_tsc_data(struct ieee80211_hw *hw,
220 					    struct ieee80211_vif *vif,
221 					    struct ieee80211_sta *sta,
222 					    struct ieee80211_key_conf *key,
223 					    void *_data)
224 {
225 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
226 	struct wowlan_key_rsc_tsc_data *data = _data;
227 	struct aes_sc *aes_sc;
228 	struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
229 	struct ieee80211_key_seq seq;
230 	int i;
231 
232 	switch (key->cipher) {
233 	default:
234 		break;
235 	case WLAN_CIPHER_SUITE_TKIP:
236 		if (sta) {
237 			u64 pn64;
238 
239 			tkip_sc =
240 			   data->rsc_tsc->params.all_tsc_rsc.tkip.unicast_rsc;
241 			tkip_tx_sc =
242 				&data->rsc_tsc->params.all_tsc_rsc.tkip.tsc;
243 
244 			pn64 = atomic64_read(&key->tx_pn);
245 			tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64));
246 			tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64));
247 		} else {
248 			tkip_sc =
249 			  data->rsc_tsc->params.all_tsc_rsc.tkip.multicast_rsc;
250 		}
251 
252 		/*
253 		 * For non-QoS this relies on the fact that both the uCode and
254 		 * mac80211 use TID 0 (as they need to to avoid replay attacks)
255 		 * for checking the IV in the frames.
256 		 */
257 		for (i = 0; i < IWL_NUM_RSC; i++) {
258 			ieee80211_get_key_rx_seq(key, i, &seq);
259 			tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
260 			tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
261 		}
262 
263 		data->have_rsc_tsc = true;
264 		break;
265 	case WLAN_CIPHER_SUITE_CCMP:
266 	case WLAN_CIPHER_SUITE_GCMP:
267 	case WLAN_CIPHER_SUITE_GCMP_256:
268 		if (sta) {
269 			struct aes_sc *aes_tx_sc;
270 			u64 pn64;
271 
272 			aes_sc =
273 			   data->rsc_tsc->params.all_tsc_rsc.aes.unicast_rsc;
274 			aes_tx_sc =
275 				&data->rsc_tsc->params.all_tsc_rsc.aes.tsc;
276 
277 			pn64 = atomic64_read(&key->tx_pn);
278 			aes_tx_sc->pn = cpu_to_le64(pn64);
279 		} else {
280 			aes_sc =
281 			   data->rsc_tsc->params.all_tsc_rsc.aes.multicast_rsc;
282 		}
283 
284 		/*
285 		 * For non-QoS this relies on the fact that both the uCode and
286 		 * mac80211/our RX code use TID 0 for checking the PN.
287 		 */
288 		if (sta && iwl_mvm_has_new_rx_api(mvm)) {
289 			struct iwl_mvm_sta *mvmsta;
290 			struct iwl_mvm_key_pn *ptk_pn;
291 			const u8 *pn;
292 
293 			mvmsta = iwl_mvm_sta_from_mac80211(sta);
294 			rcu_read_lock();
295 			ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
296 			if (WARN_ON(!ptk_pn)) {
297 				rcu_read_unlock();
298 				break;
299 			}
300 
301 			for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
302 				pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i,
303 						mvm->trans->num_rx_queues);
304 				aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
305 							   ((u64)pn[4] << 8) |
306 							   ((u64)pn[3] << 16) |
307 							   ((u64)pn[2] << 24) |
308 							   ((u64)pn[1] << 32) |
309 							   ((u64)pn[0] << 40));
310 			}
311 
312 			rcu_read_unlock();
313 		} else {
314 			for (i = 0; i < IWL_NUM_RSC; i++) {
315 				u8 *pn = seq.ccmp.pn;
316 
317 				ieee80211_get_key_rx_seq(key, i, &seq);
318 				aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
319 							   ((u64)pn[4] << 8) |
320 							   ((u64)pn[3] << 16) |
321 							   ((u64)pn[2] << 24) |
322 							   ((u64)pn[1] << 32) |
323 							   ((u64)pn[0] << 40));
324 			}
325 		}
326 		data->have_rsc_tsc = true;
327 		break;
328 	}
329 }
330 
331 struct wowlan_key_rsc_v5_data {
332 	struct iwl_wowlan_rsc_tsc_params_cmd *rsc;
333 	bool have_rsc;
334 	int gtks;
335 	int gtk_ids[4];
336 };
337 
338 static void iwl_mvm_wowlan_get_rsc_v5_data(struct ieee80211_hw *hw,
339 					   struct ieee80211_vif *vif,
340 					   struct ieee80211_sta *sta,
341 					   struct ieee80211_key_conf *key,
342 					   void *_data)
343 {
344 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
345 	struct wowlan_key_rsc_v5_data *data = _data;
346 	struct ieee80211_key_seq seq;
347 	__le64 *rsc;
348 	int i;
349 
350 	/* only for ciphers that can be PTK/GTK */
351 	switch (key->cipher) {
352 	default:
353 		return;
354 	case WLAN_CIPHER_SUITE_TKIP:
355 	case WLAN_CIPHER_SUITE_CCMP:
356 	case WLAN_CIPHER_SUITE_GCMP:
357 	case WLAN_CIPHER_SUITE_GCMP_256:
358 		break;
359 	}
360 
361 	if (sta) {
362 		rsc = data->rsc->ucast_rsc;
363 	} else {
364 		if (WARN_ON(data->gtks >= ARRAY_SIZE(data->gtk_ids)))
365 			return;
366 		data->gtk_ids[data->gtks] = key->keyidx;
367 		rsc = data->rsc->mcast_rsc[data->gtks % 2];
368 		if (WARN_ON(key->keyidx >=
369 				ARRAY_SIZE(data->rsc->mcast_key_id_map)))
370 			return;
371 		data->rsc->mcast_key_id_map[key->keyidx] = data->gtks % 2;
372 		if (data->gtks >= 2) {
373 			int prev = data->gtks - 2;
374 			int prev_idx = data->gtk_ids[prev];
375 
376 			data->rsc->mcast_key_id_map[prev_idx] =
377 				IWL_MCAST_KEY_MAP_INVALID;
378 		}
379 		data->gtks++;
380 	}
381 
382 	switch (key->cipher) {
383 	default:
384 		WARN_ON(1);
385 		break;
386 	case WLAN_CIPHER_SUITE_TKIP:
387 
388 		/*
389 		 * For non-QoS this relies on the fact that both the uCode and
390 		 * mac80211 use TID 0 (as they need to to avoid replay attacks)
391 		 * for checking the IV in the frames.
392 		 */
393 		for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
394 			ieee80211_get_key_rx_seq(key, i, &seq);
395 
396 			rsc[i] = cpu_to_le64(((u64)seq.tkip.iv32 << 16) |
397 					     seq.tkip.iv16);
398 		}
399 
400 		data->have_rsc = true;
401 		break;
402 	case WLAN_CIPHER_SUITE_CCMP:
403 	case WLAN_CIPHER_SUITE_GCMP:
404 	case WLAN_CIPHER_SUITE_GCMP_256:
405 		/*
406 		 * For non-QoS this relies on the fact that both the uCode and
407 		 * mac80211/our RX code use TID 0 for checking the PN.
408 		 */
409 		if (sta) {
410 			struct iwl_mvm_sta *mvmsta;
411 			struct iwl_mvm_key_pn *ptk_pn;
412 			const u8 *pn;
413 
414 			mvmsta = iwl_mvm_sta_from_mac80211(sta);
415 			rcu_read_lock();
416 			ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
417 			if (WARN_ON(!ptk_pn)) {
418 				rcu_read_unlock();
419 				break;
420 			}
421 
422 			for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
423 				pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i,
424 						mvm->trans->num_rx_queues);
425 				rsc[i] = cpu_to_le64((u64)pn[5] |
426 						     ((u64)pn[4] << 8) |
427 						     ((u64)pn[3] << 16) |
428 						     ((u64)pn[2] << 24) |
429 						     ((u64)pn[1] << 32) |
430 						     ((u64)pn[0] << 40));
431 			}
432 
433 			rcu_read_unlock();
434 		} else {
435 			for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
436 				u8 *pn = seq.ccmp.pn;
437 
438 				ieee80211_get_key_rx_seq(key, i, &seq);
439 				rsc[i] = cpu_to_le64((u64)pn[5] |
440 						     ((u64)pn[4] << 8) |
441 						     ((u64)pn[3] << 16) |
442 						     ((u64)pn[2] << 24) |
443 						     ((u64)pn[1] << 32) |
444 						     ((u64)pn[0] << 40));
445 			}
446 		}
447 		data->have_rsc = true;
448 		break;
449 	}
450 }
451 
452 static int iwl_mvm_wowlan_config_rsc_tsc(struct iwl_mvm *mvm,
453 					 struct ieee80211_vif *vif)
454 {
455 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
456 	int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TSC_RSC_PARAM,
457 					IWL_FW_CMD_VER_UNKNOWN);
458 	int ret;
459 
460 	if (ver == 5) {
461 		struct wowlan_key_rsc_v5_data data = {};
462 		int i;
463 
464 		data.rsc = kmalloc(sizeof(*data.rsc), GFP_KERNEL);
465 		if (!data.rsc)
466 			return -ENOMEM;
467 
468 		memset(data.rsc, 0xff, sizeof(*data.rsc));
469 
470 		for (i = 0; i < ARRAY_SIZE(data.rsc->mcast_key_id_map); i++)
471 			data.rsc->mcast_key_id_map[i] =
472 				IWL_MCAST_KEY_MAP_INVALID;
473 		data.rsc->sta_id = cpu_to_le32(mvmvif->deflink.ap_sta_id);
474 
475 		ieee80211_iter_keys(mvm->hw, vif,
476 				    iwl_mvm_wowlan_get_rsc_v5_data,
477 				    &data);
478 
479 		if (data.have_rsc)
480 			ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM,
481 						   CMD_ASYNC, sizeof(*data.rsc),
482 						   data.rsc);
483 		else
484 			ret = 0;
485 		kfree(data.rsc);
486 	} else if (ver == 4 || ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN) {
487 		struct wowlan_key_rsc_tsc_data data = {};
488 		int size;
489 
490 		data.rsc_tsc = kzalloc(sizeof(*data.rsc_tsc), GFP_KERNEL);
491 		if (!data.rsc_tsc)
492 			return -ENOMEM;
493 
494 		if (ver == 4) {
495 			size = sizeof(*data.rsc_tsc);
496 			data.rsc_tsc->sta_id =
497 				cpu_to_le32(mvmvif->deflink.ap_sta_id);
498 		} else {
499 			/* ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN */
500 			size = sizeof(data.rsc_tsc->params);
501 		}
502 
503 		ieee80211_iter_keys(mvm->hw, vif,
504 				    iwl_mvm_wowlan_get_rsc_tsc_data,
505 				    &data);
506 
507 		if (data.have_rsc_tsc)
508 			ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM,
509 						   CMD_ASYNC, size,
510 						   data.rsc_tsc);
511 		else
512 			ret = 0;
513 		kfree(data.rsc_tsc);
514 	} else {
515 		ret = 0;
516 		WARN_ON_ONCE(1);
517 	}
518 
519 	return ret;
520 }
521 
522 struct wowlan_key_tkip_data {
523 	struct iwl_wowlan_tkip_params_cmd tkip;
524 	bool have_tkip_keys;
525 };
526 
527 static void iwl_mvm_wowlan_get_tkip_data(struct ieee80211_hw *hw,
528 					 struct ieee80211_vif *vif,
529 					 struct ieee80211_sta *sta,
530 					 struct ieee80211_key_conf *key,
531 					 void *_data)
532 {
533 	struct wowlan_key_tkip_data *data = _data;
534 	struct iwl_p1k_cache *rx_p1ks;
535 	u8 *rx_mic_key;
536 	struct ieee80211_key_seq seq;
537 	u32 cur_rx_iv32 = 0;
538 	u16 p1k[IWL_P1K_SIZE];
539 	int i;
540 
541 	switch (key->cipher) {
542 	default:
543 		break;
544 	case WLAN_CIPHER_SUITE_TKIP:
545 		if (sta) {
546 			u64 pn64;
547 
548 			rx_p1ks = data->tkip.rx_uni;
549 
550 			pn64 = atomic64_read(&key->tx_pn);
551 
552 			ieee80211_get_tkip_p1k_iv(key, TKIP_PN_TO_IV32(pn64),
553 						  p1k);
554 			iwl_mvm_convert_p1k(p1k, data->tkip.tx.p1k);
555 
556 			memcpy(data->tkip.mic_keys.tx,
557 			       &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
558 			       IWL_MIC_KEY_SIZE);
559 
560 			rx_mic_key = data->tkip.mic_keys.rx_unicast;
561 		} else {
562 			rx_p1ks = data->tkip.rx_multi;
563 			rx_mic_key = data->tkip.mic_keys.rx_mcast;
564 		}
565 
566 		for (i = 0; i < IWL_NUM_RSC; i++) {
567 			ieee80211_get_key_rx_seq(key, i, &seq);
568 			/* wrapping isn't allowed, AP must rekey */
569 			if (seq.tkip.iv32 > cur_rx_iv32)
570 				cur_rx_iv32 = seq.tkip.iv32;
571 		}
572 
573 		ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
574 					  cur_rx_iv32, p1k);
575 		iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k);
576 		ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
577 					  cur_rx_iv32 + 1, p1k);
578 		iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k);
579 
580 		memcpy(rx_mic_key,
581 		       &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
582 		       IWL_MIC_KEY_SIZE);
583 
584 		data->have_tkip_keys = true;
585 		break;
586 	}
587 }
588 
589 struct wowlan_key_gtk_type_iter {
590 	struct iwl_wowlan_kek_kck_material_cmd_v4 *kek_kck_cmd;
591 };
592 
593 static void iwl_mvm_wowlan_gtk_type_iter(struct ieee80211_hw *hw,
594 					 struct ieee80211_vif *vif,
595 					 struct ieee80211_sta *sta,
596 					 struct ieee80211_key_conf *key,
597 					 void *_data)
598 {
599 	struct wowlan_key_gtk_type_iter *data = _data;
600 
601 	switch (key->cipher) {
602 	default:
603 		return;
604 	case WLAN_CIPHER_SUITE_TKIP:
605 		if (!sta)
606 			data->kek_kck_cmd->gtk_cipher =
607 				cpu_to_le32(STA_KEY_FLG_TKIP);
608 		return;
609 	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
610 	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
611 		data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_GCMP);
612 		return;
613 	case WLAN_CIPHER_SUITE_AES_CMAC:
614 		data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_CCM);
615 		return;
616 	case WLAN_CIPHER_SUITE_CCMP:
617 		if (!sta)
618 			data->kek_kck_cmd->gtk_cipher =
619 				cpu_to_le32(STA_KEY_FLG_CCM);
620 		return;
621 	case WLAN_CIPHER_SUITE_GCMP:
622 	case WLAN_CIPHER_SUITE_GCMP_256:
623 		if (!sta)
624 			data->kek_kck_cmd->gtk_cipher =
625 				cpu_to_le32(STA_KEY_FLG_GCMP);
626 		return;
627 	}
628 }
629 
630 static int iwl_mvm_send_patterns_v1(struct iwl_mvm *mvm,
631 				    struct cfg80211_wowlan *wowlan)
632 {
633 	struct iwl_wowlan_patterns_cmd_v1 *pattern_cmd;
634 	struct iwl_host_cmd cmd = {
635 		.id = WOWLAN_PATTERNS,
636 		.dataflags[0] = IWL_HCMD_DFL_NOCOPY,
637 	};
638 	int i, err;
639 
640 	if (!wowlan->n_patterns)
641 		return 0;
642 
643 	cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns);
644 
645 	pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
646 	if (!pattern_cmd)
647 		return -ENOMEM;
648 
649 	pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
650 
651 	for (i = 0; i < wowlan->n_patterns; i++) {
652 		int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
653 
654 		memcpy(&pattern_cmd->patterns[i].mask,
655 		       wowlan->patterns[i].mask, mask_len);
656 		memcpy(&pattern_cmd->patterns[i].pattern,
657 		       wowlan->patterns[i].pattern,
658 		       wowlan->patterns[i].pattern_len);
659 		pattern_cmd->patterns[i].mask_size = mask_len;
660 		pattern_cmd->patterns[i].pattern_size =
661 			wowlan->patterns[i].pattern_len;
662 	}
663 
664 	cmd.data[0] = pattern_cmd;
665 	err = iwl_mvm_send_cmd(mvm, &cmd);
666 	kfree(pattern_cmd);
667 	return err;
668 }
669 
670 static int iwl_mvm_send_patterns(struct iwl_mvm *mvm,
671 				 struct ieee80211_vif *vif,
672 				 struct cfg80211_wowlan *wowlan)
673 {
674 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
675 	struct iwl_wowlan_patterns_cmd *pattern_cmd;
676 	struct iwl_host_cmd cmd = {
677 		.id = WOWLAN_PATTERNS,
678 		.dataflags[0] = IWL_HCMD_DFL_NOCOPY,
679 	};
680 	int i, err;
681 	int ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id,
682 					IWL_FW_CMD_VER_UNKNOWN);
683 
684 	if (!wowlan->n_patterns)
685 		return 0;
686 
687 	cmd.len[0] = sizeof(*pattern_cmd) +
688 		wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern_v2);
689 
690 	pattern_cmd = kzalloc(cmd.len[0], GFP_KERNEL);
691 	if (!pattern_cmd)
692 		return -ENOMEM;
693 
694 	pattern_cmd->n_patterns = wowlan->n_patterns;
695 	if (ver >= 3)
696 		pattern_cmd->sta_id = mvmvif->deflink.ap_sta_id;
697 
698 	for (i = 0; i < wowlan->n_patterns; i++) {
699 		int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
700 
701 		pattern_cmd->patterns[i].pattern_type =
702 			WOWLAN_PATTERN_TYPE_BITMASK;
703 
704 		memcpy(&pattern_cmd->patterns[i].u.bitmask.mask,
705 		       wowlan->patterns[i].mask, mask_len);
706 		memcpy(&pattern_cmd->patterns[i].u.bitmask.pattern,
707 		       wowlan->patterns[i].pattern,
708 		       wowlan->patterns[i].pattern_len);
709 		pattern_cmd->patterns[i].u.bitmask.mask_size = mask_len;
710 		pattern_cmd->patterns[i].u.bitmask.pattern_size =
711 			wowlan->patterns[i].pattern_len;
712 	}
713 
714 	cmd.data[0] = pattern_cmd;
715 	err = iwl_mvm_send_cmd(mvm, &cmd);
716 	kfree(pattern_cmd);
717 	return err;
718 }
719 
720 static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
721 				struct ieee80211_sta *ap_sta)
722 {
723 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
724 	struct ieee80211_chanctx_conf *ctx;
725 	u8 chains_static, chains_dynamic;
726 	struct cfg80211_chan_def chandef;
727 	int ret, i;
728 	struct iwl_binding_cmd_v1 binding_cmd = {};
729 	struct iwl_time_quota_cmd quota_cmd = {};
730 	struct iwl_time_quota_data *quota;
731 	u32 status;
732 
733 	if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm)))
734 		return -EINVAL;
735 
736 	/* add back the PHY */
737 	if (WARN_ON(!mvmvif->deflink.phy_ctxt))
738 		return -EINVAL;
739 
740 	rcu_read_lock();
741 	ctx = rcu_dereference(vif->bss_conf.chanctx_conf);
742 	if (WARN_ON(!ctx)) {
743 		rcu_read_unlock();
744 		return -EINVAL;
745 	}
746 	chandef = ctx->def;
747 	chains_static = ctx->rx_chains_static;
748 	chains_dynamic = ctx->rx_chains_dynamic;
749 	rcu_read_unlock();
750 
751 	ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, &chandef,
752 				   chains_static, chains_dynamic);
753 	if (ret)
754 		return ret;
755 
756 	/* add back the MAC */
757 	mvmvif->uploaded = false;
758 
759 	if (WARN_ON(!vif->cfg.assoc))
760 		return -EINVAL;
761 
762 	ret = iwl_mvm_mac_ctxt_add(mvm, vif);
763 	if (ret)
764 		return ret;
765 
766 	/* add back binding - XXX refactor? */
767 	binding_cmd.id_and_color =
768 		cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id,
769 						mvmvif->deflink.phy_ctxt->color));
770 	binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
771 	binding_cmd.phy =
772 		cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id,
773 						mvmvif->deflink.phy_ctxt->color));
774 	binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
775 							      mvmvif->color));
776 	for (i = 1; i < MAX_MACS_IN_BINDING; i++)
777 		binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
778 
779 	status = 0;
780 	ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
781 					  IWL_BINDING_CMD_SIZE_V1, &binding_cmd,
782 					  &status);
783 	if (ret) {
784 		IWL_ERR(mvm, "Failed to add binding: %d\n", ret);
785 		return ret;
786 	}
787 
788 	if (status) {
789 		IWL_ERR(mvm, "Binding command failed: %u\n", status);
790 		return -EIO;
791 	}
792 
793 	ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0);
794 	if (ret)
795 		return ret;
796 	rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->deflink.ap_sta_id],
797 			   ap_sta);
798 
799 	ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
800 	if (ret)
801 		return ret;
802 
803 	/* and some quota */
804 	quota = iwl_mvm_quota_cmd_get_quota(mvm, &quota_cmd, 0);
805 	quota->id_and_color =
806 		cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id,
807 						mvmvif->deflink.phy_ctxt->color));
808 	quota->quota = cpu_to_le32(IWL_MVM_MAX_QUOTA);
809 	quota->max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA);
810 
811 	for (i = 1; i < MAX_BINDINGS; i++) {
812 		quota = iwl_mvm_quota_cmd_get_quota(mvm, &quota_cmd, i);
813 		quota->id_and_color = cpu_to_le32(FW_CTXT_INVALID);
814 	}
815 
816 	ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0,
817 				   iwl_mvm_quota_cmd_size(mvm), &quota_cmd);
818 	if (ret)
819 		IWL_ERR(mvm, "Failed to send quota: %d\n", ret);
820 
821 	if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm))
822 		IWL_ERR(mvm, "Failed to initialize D3 LAR information\n");
823 
824 	return 0;
825 }
826 
827 static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
828 				       struct ieee80211_vif *vif)
829 {
830 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
831 	struct iwl_nonqos_seq_query_cmd query_cmd = {
832 		.get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET),
833 		.mac_id_n_color =
834 			cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
835 							mvmvif->color)),
836 	};
837 	struct iwl_host_cmd cmd = {
838 		.id = NON_QOS_TX_COUNTER_CMD,
839 		.flags = CMD_WANT_SKB,
840 	};
841 	int err;
842 	u32 size;
843 
844 	cmd.data[0] = &query_cmd;
845 	cmd.len[0] = sizeof(query_cmd);
846 
847 	err = iwl_mvm_send_cmd(mvm, &cmd);
848 	if (err)
849 		return err;
850 
851 	size = iwl_rx_packet_payload_len(cmd.resp_pkt);
852 	if (size < sizeof(__le16)) {
853 		err = -EINVAL;
854 	} else {
855 		err = le16_to_cpup((__le16 *)cmd.resp_pkt->data);
856 		/* firmware returns next, not last-used seqno */
857 		err = (u16) (err - 0x10);
858 	}
859 
860 	iwl_free_resp(&cmd);
861 	return err;
862 }
863 
864 void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
865 {
866 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
867 	struct iwl_nonqos_seq_query_cmd query_cmd = {
868 		.get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET),
869 		.mac_id_n_color =
870 			cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
871 							mvmvif->color)),
872 		.value = cpu_to_le16(mvmvif->seqno),
873 	};
874 
875 	/* return if called during restart, not resume from D3 */
876 	if (!mvmvif->seqno_valid)
877 		return;
878 
879 	mvmvif->seqno_valid = false;
880 
881 	if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0,
882 				 sizeof(query_cmd), &query_cmd))
883 		IWL_ERR(mvm, "failed to set non-QoS seqno\n");
884 }
885 
886 static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm)
887 {
888 	iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
889 
890 	iwl_mvm_stop_device(mvm);
891 	/*
892 	 * Set the HW restart bit -- this is mostly true as we're
893 	 * going to load new firmware and reprogram that, though
894 	 * the reprogramming is going to be manual to avoid adding
895 	 * all the MACs that aren't support.
896 	 * We don't have to clear up everything though because the
897 	 * reprogramming is manual. When we resume, we'll actually
898 	 * go through a proper restart sequence again to switch
899 	 * back to the runtime firmware image.
900 	 */
901 	set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
902 
903 	/* the fw is reset, so all the keys are cleared */
904 	memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
905 
906 	mvm->ptk_ivlen = 0;
907 	mvm->ptk_icvlen = 0;
908 	mvm->ptk_ivlen = 0;
909 	mvm->ptk_icvlen = 0;
910 
911 	return iwl_mvm_load_d3_fw(mvm);
912 }
913 
914 static int
915 iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
916 			  struct cfg80211_wowlan *wowlan,
917 			  struct iwl_wowlan_config_cmd *wowlan_config_cmd,
918 			  struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
919 			  struct ieee80211_sta *ap_sta)
920 {
921 	struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
922 
923 	/* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
924 
925 	wowlan_config_cmd->is_11n_connection =
926 					ap_sta->deflink.ht_cap.ht_supported;
927 	wowlan_config_cmd->flags = ENABLE_L3_FILTERING |
928 		ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING;
929 
930 	if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 6) {
931 		/* Query the last used seqno and set it */
932 		int ret = iwl_mvm_get_last_nonqos_seq(mvm, vif);
933 
934 		if (ret < 0)
935 			return ret;
936 
937 		wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret);
938 	}
939 
940 	iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd);
941 
942 	if (wowlan->disconnect)
943 		wowlan_config_cmd->wakeup_filter |=
944 			cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
945 				    IWL_WOWLAN_WAKEUP_LINK_CHANGE);
946 	if (wowlan->magic_pkt)
947 		wowlan_config_cmd->wakeup_filter |=
948 			cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
949 	if (wowlan->gtk_rekey_failure)
950 		wowlan_config_cmd->wakeup_filter |=
951 			cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
952 	if (wowlan->eap_identity_req)
953 		wowlan_config_cmd->wakeup_filter |=
954 			cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
955 	if (wowlan->four_way_handshake)
956 		wowlan_config_cmd->wakeup_filter |=
957 			cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
958 	if (wowlan->n_patterns)
959 		wowlan_config_cmd->wakeup_filter |=
960 			cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
961 
962 	if (wowlan->rfkill_release)
963 		wowlan_config_cmd->wakeup_filter |=
964 			cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
965 
966 	if (wowlan->tcp) {
967 		/*
968 		 * Set the "link change" (really "link lost") flag as well
969 		 * since that implies losing the TCP connection.
970 		 */
971 		wowlan_config_cmd->wakeup_filter |=
972 			cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS |
973 				    IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE |
974 				    IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET |
975 				    IWL_WOWLAN_WAKEUP_LINK_CHANGE);
976 	}
977 
978 	if (wowlan->any) {
979 		wowlan_config_cmd->wakeup_filter |=
980 			cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
981 				    IWL_WOWLAN_WAKEUP_LINK_CHANGE |
982 				    IWL_WOWLAN_WAKEUP_RX_FRAME |
983 				    IWL_WOWLAN_WAKEUP_BCN_FILTERING);
984 	}
985 
986 	return 0;
987 }
988 
989 static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
990 					    struct ieee80211_vif *vif)
991 {
992 	bool unified = fw_has_capa(&mvm->fw->ucode_capa,
993 				   IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
994 	struct wowlan_key_reprogram_data key_data = {};
995 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
996 	int ret;
997 	u8 cmd_ver;
998 	size_t cmd_size;
999 
1000 	if (!unified) {
1001 		/*
1002 		 * if we have to configure keys, call ieee80211_iter_keys(),
1003 		 * as we need non-atomic context in order to take the
1004 		 * required locks.
1005 		 */
1006 		/*
1007 		 * Note that currently we don't use CMD_ASYNC in the iterator.
1008 		 * In case of key_data.configure_keys, all the configured
1009 		 * commands are SYNC, and iwl_mvm_wowlan_program_keys() will
1010 		 * take care of locking/unlocking mvm->mutex.
1011 		 */
1012 		ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_program_keys,
1013 				    &key_data);
1014 
1015 		if (key_data.error)
1016 			return -EIO;
1017 	}
1018 
1019 	ret = iwl_mvm_wowlan_config_rsc_tsc(mvm, vif);
1020 	if (ret)
1021 		return ret;
1022 
1023 	if (!fw_has_api(&mvm->fw->ucode_capa,
1024 			IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) {
1025 		int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TKIP_PARAM,
1026 						IWL_FW_CMD_VER_UNKNOWN);
1027 		struct wowlan_key_tkip_data tkip_data = {};
1028 		int size;
1029 
1030 		if (ver == 2) {
1031 			size = sizeof(tkip_data.tkip);
1032 			tkip_data.tkip.sta_id =
1033 				cpu_to_le32(mvmvif->deflink.ap_sta_id);
1034 		} else if (ver == 1 || ver == IWL_FW_CMD_VER_UNKNOWN) {
1035 			size = sizeof(struct iwl_wowlan_tkip_params_cmd_ver_1);
1036 		} else {
1037 			WARN_ON_ONCE(1);
1038 			return -EINVAL;
1039 		}
1040 
1041 		ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_get_tkip_data,
1042 				    &tkip_data);
1043 
1044 		if (tkip_data.have_tkip_keys) {
1045 			/* send relevant data according to CMD version */
1046 			ret = iwl_mvm_send_cmd_pdu(mvm,
1047 						   WOWLAN_TKIP_PARAM,
1048 						   CMD_ASYNC, size,
1049 						   &tkip_data.tkip);
1050 			if (ret)
1051 				return ret;
1052 		}
1053 	}
1054 
1055 	/* configure rekey data only if offloaded rekey is supported (d3) */
1056 	if (mvmvif->rekey_data.valid) {
1057 		struct iwl_wowlan_kek_kck_material_cmd_v4 kek_kck_cmd = {};
1058 		struct iwl_wowlan_kek_kck_material_cmd_v4 *_kek_kck_cmd =
1059 			&kek_kck_cmd;
1060 		struct wowlan_key_gtk_type_iter gtk_type_data = {
1061 			.kek_kck_cmd = _kek_kck_cmd,
1062 		};
1063 
1064 		cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
1065 						WOWLAN_KEK_KCK_MATERIAL,
1066 						IWL_FW_CMD_VER_UNKNOWN);
1067 		if (WARN_ON(cmd_ver != 2 && cmd_ver != 3 && cmd_ver != 4 &&
1068 			    cmd_ver != IWL_FW_CMD_VER_UNKNOWN))
1069 			return -EINVAL;
1070 
1071 		ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_gtk_type_iter,
1072 				    &gtk_type_data);
1073 
1074 		memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
1075 		       mvmvif->rekey_data.kck_len);
1076 		kek_kck_cmd.kck_len = cpu_to_le16(mvmvif->rekey_data.kck_len);
1077 		memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
1078 		       mvmvif->rekey_data.kek_len);
1079 		kek_kck_cmd.kek_len = cpu_to_le16(mvmvif->rekey_data.kek_len);
1080 		kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
1081 		kek_kck_cmd.akm = cpu_to_le32(mvmvif->rekey_data.akm);
1082 		kek_kck_cmd.sta_id = cpu_to_le32(mvmvif->deflink.ap_sta_id);
1083 
1084 		if (cmd_ver == 4) {
1085 			cmd_size = sizeof(struct iwl_wowlan_kek_kck_material_cmd_v4);
1086 		} else {
1087 			if (cmd_ver == 3)
1088 				cmd_size =
1089 					sizeof(struct iwl_wowlan_kek_kck_material_cmd_v3);
1090 			else
1091 				cmd_size =
1092 					sizeof(struct iwl_wowlan_kek_kck_material_cmd_v2);
1093 			/* skip the sta_id at the beginning */
1094 			_kek_kck_cmd = (void *)
1095 				((u8 *)_kek_kck_cmd + sizeof(kek_kck_cmd.sta_id));
1096 		}
1097 
1098 		IWL_DEBUG_WOWLAN(mvm, "setting akm %d\n",
1099 				 mvmvif->rekey_data.akm);
1100 
1101 		ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_KEK_KCK_MATERIAL,
1102 					   CMD_ASYNC, cmd_size, _kek_kck_cmd);
1103 		if (ret)
1104 			return ret;
1105 	}
1106 
1107 	return 0;
1108 }
1109 
1110 static int
1111 iwl_mvm_wowlan_config(struct iwl_mvm *mvm,
1112 		      struct cfg80211_wowlan *wowlan,
1113 		      struct iwl_wowlan_config_cmd *wowlan_config_cmd,
1114 		      struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
1115 		      struct ieee80211_sta *ap_sta)
1116 {
1117 	int ret;
1118 	bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1119 					 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1120 
1121 	mvm->offload_tid = wowlan_config_cmd->offloading_tid;
1122 
1123 	if (!unified_image) {
1124 		ret = iwl_mvm_switch_to_d3(mvm);
1125 		if (ret)
1126 			return ret;
1127 
1128 		ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
1129 		if (ret)
1130 			return ret;
1131 	}
1132 
1133 	/*
1134 	 * This needs to be unlocked due to lock ordering
1135 	 * constraints. Since we're in the suspend path
1136 	 * that isn't really a problem though.
1137 	 */
1138 	mutex_unlock(&mvm->mutex);
1139 	ret = iwl_mvm_wowlan_config_key_params(mvm, vif);
1140 	mutex_lock(&mvm->mutex);
1141 	if (ret)
1142 		return ret;
1143 
1144 	ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
1145 				   sizeof(*wowlan_config_cmd),
1146 				   wowlan_config_cmd);
1147 	if (ret)
1148 		return ret;
1149 
1150 	if (fw_has_api(&mvm->fw->ucode_capa,
1151 		       IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE))
1152 		ret = iwl_mvm_send_patterns(mvm, vif, wowlan);
1153 	else
1154 		ret = iwl_mvm_send_patterns_v1(mvm, wowlan);
1155 	if (ret)
1156 		return ret;
1157 
1158 	return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0);
1159 }
1160 
1161 static int
1162 iwl_mvm_netdetect_config(struct iwl_mvm *mvm,
1163 			 struct cfg80211_wowlan *wowlan,
1164 			 struct cfg80211_sched_scan_request *nd_config,
1165 			 struct ieee80211_vif *vif)
1166 {
1167 	int ret;
1168 	bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1169 					 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1170 
1171 	if (!unified_image) {
1172 		ret = iwl_mvm_switch_to_d3(mvm);
1173 		if (ret)
1174 			return ret;
1175 	} else {
1176 		/* In theory, we wouldn't have to stop a running sched
1177 		 * scan in order to start another one (for
1178 		 * net-detect).  But in practice this doesn't seem to
1179 		 * work properly, so stop any running sched_scan now.
1180 		 */
1181 		ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
1182 		if (ret)
1183 			return ret;
1184 	}
1185 
1186 	ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies,
1187 				       IWL_MVM_SCAN_NETDETECT);
1188 	if (ret)
1189 		return ret;
1190 
1191 	if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels))
1192 		return -EBUSY;
1193 
1194 	/* save the sched scan matchsets... */
1195 	if (nd_config->n_match_sets) {
1196 		mvm->nd_match_sets = kmemdup(nd_config->match_sets,
1197 					     sizeof(*nd_config->match_sets) *
1198 					     nd_config->n_match_sets,
1199 					     GFP_KERNEL);
1200 		if (mvm->nd_match_sets)
1201 			mvm->n_nd_match_sets = nd_config->n_match_sets;
1202 	}
1203 
1204 	/* ...and the sched scan channels for later reporting */
1205 	mvm->nd_channels = kmemdup(nd_config->channels,
1206 				   sizeof(*nd_config->channels) *
1207 				   nd_config->n_channels,
1208 				   GFP_KERNEL);
1209 	if (mvm->nd_channels)
1210 		mvm->n_nd_channels = nd_config->n_channels;
1211 
1212 	return 0;
1213 }
1214 
1215 static void iwl_mvm_free_nd(struct iwl_mvm *mvm)
1216 {
1217 	kfree(mvm->nd_match_sets);
1218 	mvm->nd_match_sets = NULL;
1219 	mvm->n_nd_match_sets = 0;
1220 	kfree(mvm->nd_channels);
1221 	mvm->nd_channels = NULL;
1222 	mvm->n_nd_channels = 0;
1223 }
1224 
1225 static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
1226 			     struct cfg80211_wowlan *wowlan,
1227 			     bool test)
1228 {
1229 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1230 	struct ieee80211_vif *vif = NULL;
1231 	struct iwl_mvm_vif *mvmvif = NULL;
1232 	struct ieee80211_sta *ap_sta = NULL;
1233 	struct iwl_d3_manager_config d3_cfg_cmd_data = {
1234 		/*
1235 		 * Program the minimum sleep time to 10 seconds, as many
1236 		 * platforms have issues processing a wakeup signal while
1237 		 * still being in the process of suspending.
1238 		 */
1239 		.min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
1240 	};
1241 	struct iwl_host_cmd d3_cfg_cmd = {
1242 		.id = D3_CONFIG_CMD,
1243 		.flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
1244 		.data[0] = &d3_cfg_cmd_data,
1245 		.len[0] = sizeof(d3_cfg_cmd_data),
1246 	};
1247 	int ret;
1248 	int len __maybe_unused;
1249 	bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1250 					 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1251 
1252 	if (!wowlan) {
1253 		/*
1254 		 * mac80211 shouldn't get here, but for D3 test
1255 		 * it doesn't warrant a warning
1256 		 */
1257 		WARN_ON(!test);
1258 		return -EINVAL;
1259 	}
1260 
1261 	mutex_lock(&mvm->mutex);
1262 
1263 	set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1264 
1265 	synchronize_net();
1266 
1267 	vif = iwl_mvm_get_bss_vif(mvm);
1268 	if (IS_ERR_OR_NULL(vif)) {
1269 		ret = 1;
1270 		goto out_noreset;
1271 	}
1272 
1273 	mvmvif = iwl_mvm_vif_from_mac80211(vif);
1274 
1275 	if (mvmvif->deflink.ap_sta_id == IWL_MVM_INVALID_STA) {
1276 		/* if we're not associated, this must be netdetect */
1277 		if (!wowlan->nd_config) {
1278 			ret = 1;
1279 			goto out_noreset;
1280 		}
1281 
1282 		ret = iwl_mvm_netdetect_config(
1283 			mvm, wowlan, wowlan->nd_config, vif);
1284 		if (ret)
1285 			goto out;
1286 
1287 		mvm->net_detect = true;
1288 	} else {
1289 		struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
1290 
1291 		wowlan_config_cmd.sta_id = mvmvif->deflink.ap_sta_id;
1292 
1293 		ap_sta = rcu_dereference_protected(
1294 			mvm->fw_id_to_mac_id[mvmvif->deflink.ap_sta_id],
1295 			lockdep_is_held(&mvm->mutex));
1296 		if (IS_ERR_OR_NULL(ap_sta)) {
1297 			ret = -EINVAL;
1298 			goto out_noreset;
1299 		}
1300 
1301 		ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1302 						vif, mvmvif, ap_sta);
1303 		if (ret)
1304 			goto out_noreset;
1305 		ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1306 					    vif, mvmvif, ap_sta);
1307 		if (ret)
1308 			goto out;
1309 
1310 		mvm->net_detect = false;
1311 	}
1312 
1313 	ret = iwl_mvm_power_update_device(mvm);
1314 	if (ret)
1315 		goto out;
1316 
1317 	ret = iwl_mvm_power_update_mac(mvm);
1318 	if (ret)
1319 		goto out;
1320 
1321 #ifdef CONFIG_IWLWIFI_DEBUGFS
1322 	if (mvm->d3_wake_sysassert)
1323 		d3_cfg_cmd_data.wakeup_flags |=
1324 			cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR);
1325 #endif
1326 
1327 	/*
1328 	 * Prior to 9000 device family the driver needs to stop the dbg
1329 	 * recording before entering D3. In later devices the FW stops the
1330 	 * recording automatically.
1331 	 */
1332 	if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000)
1333 		iwl_fw_dbg_stop_restart_recording(&mvm->fwrt, NULL, true);
1334 
1335 	mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
1336 
1337 	/* must be last -- this switches firmware state */
1338 	ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
1339 	if (ret)
1340 		goto out;
1341 #ifdef CONFIG_IWLWIFI_DEBUGFS
1342 	len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt);
1343 	if (len >= sizeof(u32)) {
1344 		mvm->d3_test_pme_ptr =
1345 			le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
1346 	}
1347 #endif
1348 	iwl_free_resp(&d3_cfg_cmd);
1349 
1350 	clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1351 
1352 	ret = iwl_trans_d3_suspend(mvm->trans, test, !unified_image);
1353  out:
1354 	if (ret < 0) {
1355 		iwl_mvm_free_nd(mvm);
1356 
1357 		if (!unified_image) {
1358 			if (mvm->fw_restart > 0) {
1359 				mvm->fw_restart--;
1360 				ieee80211_restart_hw(mvm->hw);
1361 			}
1362 		}
1363 
1364 		clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1365 	}
1366  out_noreset:
1367 	mutex_unlock(&mvm->mutex);
1368 
1369 	return ret;
1370 }
1371 
1372 int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
1373 {
1374 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1375 
1376 	iwl_mvm_pause_tcm(mvm, true);
1377 
1378 	iwl_fw_runtime_suspend(&mvm->fwrt);
1379 
1380 	return __iwl_mvm_suspend(hw, wowlan, false);
1381 }
1382 
1383 struct iwl_multicast_key_data {
1384 	u8 key[WOWLAN_KEY_MAX_SIZE];
1385 	u8 len;
1386 	u8 flags;
1387 	u8 id;
1388 	u8 ipn[6];
1389 };
1390 
1391 /* converted data from the different status responses */
1392 struct iwl_wowlan_status_data {
1393 	u64 replay_ctr;
1394 	u32 num_of_gtk_rekeys;
1395 	u32 received_beacons;
1396 	u32 wakeup_reasons;
1397 	u32 wake_packet_length;
1398 	u32 wake_packet_bufsize;
1399 	u16 pattern_number;
1400 	u16 non_qos_seq_ctr;
1401 	u16 qos_seq_ctr[8];
1402 	u8 tid_tear_down;
1403 
1404 	struct {
1405 		/* including RX MIC key for TKIP */
1406 		u8 key[WOWLAN_KEY_MAX_SIZE];
1407 		u8 len;
1408 		u8 flags;
1409 		u8 id;
1410 	} gtk[WOWLAN_GTK_KEYS_NUM];
1411 
1412 	struct {
1413 		/*
1414 		 * We store both the TKIP and AES representations
1415 		 * coming from the firmware because we decode the
1416 		 * data from there before we iterate the keys and
1417 		 * know which one we need.
1418 		 */
1419 		struct {
1420 			struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
1421 		} tkip, aes;
1422 
1423 		/*
1424 		 * We use -1 for when we have valid data but don't know
1425 		 * the key ID from firmware, and thus it needs to be
1426 		 * installed with the last key (depending on rekeying).
1427 		 */
1428 		s8 key_id;
1429 		bool valid;
1430 	} gtk_seq[2];
1431 
1432 	struct {
1433 		/* Same as above */
1434 		struct {
1435 			struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
1436 			u64 tx_pn;
1437 		} tkip, aes;
1438 	} ptk;
1439 
1440 	struct iwl_multicast_key_data igtk;
1441 
1442 	u8 *wake_packet;
1443 };
1444 
1445 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
1446 					  struct ieee80211_vif *vif,
1447 					  struct iwl_wowlan_status_data *status)
1448 {
1449 	struct sk_buff *pkt = NULL;
1450 	struct cfg80211_wowlan_wakeup wakeup = {
1451 		.pattern_idx = -1,
1452 	};
1453 	struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1454 	u32 reasons = status->wakeup_reasons;
1455 
1456 	if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1457 		wakeup_report = NULL;
1458 		goto report;
1459 	}
1460 
1461 	pm_wakeup_event(mvm->dev, 0);
1462 
1463 	if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
1464 		wakeup.magic_pkt = true;
1465 
1466 	if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
1467 		wakeup.pattern_idx =
1468 			status->pattern_number;
1469 
1470 	if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1471 		       IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH))
1472 		wakeup.disconnect = true;
1473 
1474 	if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
1475 		wakeup.gtk_rekey_failure = true;
1476 
1477 	if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1478 		wakeup.rfkill_release = true;
1479 
1480 	if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
1481 		wakeup.eap_identity_req = true;
1482 
1483 	if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
1484 		wakeup.four_way_handshake = true;
1485 
1486 	if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1487 		wakeup.tcp_connlost = true;
1488 
1489 	if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1490 		wakeup.tcp_nomoretokens = true;
1491 
1492 	if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1493 		wakeup.tcp_match = true;
1494 
1495 	if (status->wake_packet) {
1496 		int pktsize = status->wake_packet_bufsize;
1497 		int pktlen = status->wake_packet_length;
1498 		const u8 *pktdata = status->wake_packet;
1499 		const struct ieee80211_hdr *hdr = (const void *)pktdata;
1500 		int truncated = pktlen - pktsize;
1501 
1502 		/* this would be a firmware bug */
1503 		if (WARN_ON_ONCE(truncated < 0))
1504 			truncated = 0;
1505 
1506 		if (ieee80211_is_data(hdr->frame_control)) {
1507 			int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1508 			int ivlen = 0, icvlen = 4; /* also FCS */
1509 
1510 			pkt = alloc_skb(pktsize, GFP_KERNEL);
1511 			if (!pkt)
1512 				goto report;
1513 
1514 			skb_put_data(pkt, pktdata, hdrlen);
1515 			pktdata += hdrlen;
1516 			pktsize -= hdrlen;
1517 
1518 			if (ieee80211_has_protected(hdr->frame_control)) {
1519 				/*
1520 				 * This is unlocked and using gtk_i(c)vlen,
1521 				 * but since everything is under RTNL still
1522 				 * that's not really a problem - changing
1523 				 * it would be difficult.
1524 				 */
1525 				if (is_multicast_ether_addr(hdr->addr1)) {
1526 					ivlen = mvm->gtk_ivlen;
1527 					icvlen += mvm->gtk_icvlen;
1528 				} else {
1529 					ivlen = mvm->ptk_ivlen;
1530 					icvlen += mvm->ptk_icvlen;
1531 				}
1532 			}
1533 
1534 			/* if truncated, FCS/ICV is (partially) gone */
1535 			if (truncated >= icvlen) {
1536 				icvlen = 0;
1537 				truncated -= icvlen;
1538 			} else {
1539 				icvlen -= truncated;
1540 				truncated = 0;
1541 			}
1542 
1543 			pktsize -= ivlen + icvlen;
1544 			pktdata += ivlen;
1545 
1546 			skb_put_data(pkt, pktdata, pktsize);
1547 
1548 			if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1549 				goto report;
1550 			wakeup.packet = pkt->data;
1551 			wakeup.packet_present_len = pkt->len;
1552 			wakeup.packet_len = pkt->len - truncated;
1553 			wakeup.packet_80211 = false;
1554 		} else {
1555 			int fcslen = 4;
1556 
1557 			if (truncated >= 4) {
1558 				truncated -= 4;
1559 				fcslen = 0;
1560 			} else {
1561 				fcslen -= truncated;
1562 				truncated = 0;
1563 			}
1564 			pktsize -= fcslen;
1565 			wakeup.packet = status->wake_packet;
1566 			wakeup.packet_present_len = pktsize;
1567 			wakeup.packet_len = pktlen - truncated;
1568 			wakeup.packet_80211 = true;
1569 		}
1570 	}
1571 
1572  report:
1573 	ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1574 	kfree_skb(pkt);
1575 }
1576 
1577 static void iwl_mvm_le64_to_aes_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
1578 {
1579 	u64 pn = le64_to_cpu(le_pn);
1580 
1581 	seq->ccmp.pn[0] = pn >> 40;
1582 	seq->ccmp.pn[1] = pn >> 32;
1583 	seq->ccmp.pn[2] = pn >> 24;
1584 	seq->ccmp.pn[3] = pn >> 16;
1585 	seq->ccmp.pn[4] = pn >> 8;
1586 	seq->ccmp.pn[5] = pn;
1587 }
1588 
1589 static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
1590 				  struct ieee80211_key_seq *seq)
1591 {
1592 	iwl_mvm_le64_to_aes_seq(sc->pn, seq);
1593 }
1594 
1595 static void iwl_mvm_le64_to_tkip_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
1596 {
1597 	u64 pn = le64_to_cpu(le_pn);
1598 
1599 	seq->tkip.iv16 = (u16)pn;
1600 	seq->tkip.iv32 = (u32)(pn >> 16);
1601 }
1602 
1603 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
1604 				   struct ieee80211_key_seq *seq)
1605 {
1606 	seq->tkip.iv32 = le32_to_cpu(sc->iv32);
1607 	seq->tkip.iv16 = le16_to_cpu(sc->iv16);
1608 }
1609 
1610 static void iwl_mvm_set_key_rx_seq_tids(struct ieee80211_key_conf *key,
1611 					struct ieee80211_key_seq *seq)
1612 {
1613 	int tid;
1614 
1615 	for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++)
1616 		ieee80211_set_key_rx_seq(key, tid, &seq[tid]);
1617 }
1618 
1619 static void iwl_mvm_set_aes_ptk_rx_seq(struct iwl_mvm *mvm,
1620 				       struct iwl_wowlan_status_data *status,
1621 				       struct ieee80211_sta *sta,
1622 				       struct ieee80211_key_conf *key)
1623 {
1624 	struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1625 	struct iwl_mvm_key_pn *ptk_pn;
1626 	int tid;
1627 
1628 	iwl_mvm_set_key_rx_seq_tids(key, status->ptk.aes.seq);
1629 
1630 	if (!iwl_mvm_has_new_rx_api(mvm))
1631 		return;
1632 
1633 
1634 	rcu_read_lock();
1635 	ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
1636 	if (WARN_ON(!ptk_pn)) {
1637 		rcu_read_unlock();
1638 		return;
1639 	}
1640 
1641 	for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1642 		int i;
1643 
1644 		for (i = 1; i < mvm->trans->num_rx_queues; i++)
1645 			memcpy(ptk_pn->q[i].pn[tid],
1646 			       status->ptk.aes.seq[tid].ccmp.pn,
1647 			       IEEE80211_CCMP_PN_LEN);
1648 	}
1649 	rcu_read_unlock();
1650 }
1651 
1652 static void iwl_mvm_convert_key_counters(struct iwl_wowlan_status_data *status,
1653 					 union iwl_all_tsc_rsc *sc)
1654 {
1655 	int i;
1656 
1657 	BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
1658 	BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
1659 
1660 	/* GTK RX counters */
1661 	for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1662 		iwl_mvm_tkip_sc_to_seq(&sc->tkip.multicast_rsc[i],
1663 				       &status->gtk_seq[0].tkip.seq[i]);
1664 		iwl_mvm_aes_sc_to_seq(&sc->aes.multicast_rsc[i],
1665 				      &status->gtk_seq[0].aes.seq[i]);
1666 	}
1667 	status->gtk_seq[0].valid = true;
1668 	status->gtk_seq[0].key_id = -1;
1669 
1670 	/* PTK TX counter */
1671 	status->ptk.tkip.tx_pn = (u64)le16_to_cpu(sc->tkip.tsc.iv16) |
1672 				 ((u64)le32_to_cpu(sc->tkip.tsc.iv32) << 16);
1673 	status->ptk.aes.tx_pn = le64_to_cpu(sc->aes.tsc.pn);
1674 
1675 	/* PTK RX counters */
1676 	for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1677 		iwl_mvm_tkip_sc_to_seq(&sc->tkip.unicast_rsc[i],
1678 				       &status->ptk.tkip.seq[i]);
1679 		iwl_mvm_aes_sc_to_seq(&sc->aes.unicast_rsc[i],
1680 				      &status->ptk.aes.seq[i]);
1681 	}
1682 }
1683 
1684 static void
1685 iwl_mvm_convert_key_counters_v5_gtk_seq(struct iwl_wowlan_status_data *status,
1686 					struct iwl_wowlan_all_rsc_tsc_v5 *sc,
1687 					unsigned int idx, unsigned int key_id)
1688 {
1689 	int tid;
1690 
1691 	for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1692 		iwl_mvm_le64_to_tkip_seq(sc->mcast_rsc[idx][tid],
1693 					 &status->gtk_seq[idx].tkip.seq[tid]);
1694 		iwl_mvm_le64_to_aes_seq(sc->mcast_rsc[idx][tid],
1695 					&status->gtk_seq[idx].aes.seq[tid]);
1696 	}
1697 
1698 	status->gtk_seq[idx].valid = true;
1699 	status->gtk_seq[idx].key_id = key_id;
1700 }
1701 
1702 static void
1703 iwl_mvm_convert_key_counters_v5(struct iwl_wowlan_status_data *status,
1704 				struct iwl_wowlan_all_rsc_tsc_v5 *sc)
1705 {
1706 	int i, tid;
1707 
1708 	BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
1709 	BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
1710 	BUILD_BUG_ON(ARRAY_SIZE(sc->mcast_rsc) != ARRAY_SIZE(status->gtk_seq));
1711 
1712 	/* GTK RX counters */
1713 	for (i = 0; i < ARRAY_SIZE(sc->mcast_key_id_map); i++) {
1714 		u8 entry = sc->mcast_key_id_map[i];
1715 
1716 		if (entry < ARRAY_SIZE(sc->mcast_rsc))
1717 			iwl_mvm_convert_key_counters_v5_gtk_seq(status, sc,
1718 								entry, i);
1719 	}
1720 
1721 	/* PTK TX counters not needed, assigned in device */
1722 
1723 	/* PTK RX counters */
1724 	for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1725 		iwl_mvm_le64_to_tkip_seq(sc->ucast_rsc[tid],
1726 					 &status->ptk.tkip.seq[tid]);
1727 		iwl_mvm_le64_to_aes_seq(sc->ucast_rsc[tid],
1728 					&status->ptk.aes.seq[tid]);
1729 	}
1730 }
1731 
1732 static void iwl_mvm_set_key_rx_seq_idx(struct ieee80211_key_conf *key,
1733 				       struct iwl_wowlan_status_data *status,
1734 				       int idx)
1735 {
1736 	switch (key->cipher) {
1737 	case WLAN_CIPHER_SUITE_CCMP:
1738 	case WLAN_CIPHER_SUITE_GCMP:
1739 	case WLAN_CIPHER_SUITE_GCMP_256:
1740 		iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].aes.seq);
1741 		break;
1742 	case WLAN_CIPHER_SUITE_TKIP:
1743 		iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].tkip.seq);
1744 		break;
1745 	default:
1746 		WARN_ON(1);
1747 	}
1748 }
1749 
1750 static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key,
1751 				   struct iwl_wowlan_status_data *status,
1752 				   bool installed)
1753 {
1754 	int i;
1755 
1756 	for (i = 0; i < ARRAY_SIZE(status->gtk_seq); i++) {
1757 		if (!status->gtk_seq[i].valid)
1758 			continue;
1759 
1760 		/* Handle the case where we know the key ID */
1761 		if (status->gtk_seq[i].key_id == key->keyidx) {
1762 			s8 new_key_id = -1;
1763 
1764 			if (status->num_of_gtk_rekeys)
1765 				new_key_id = status->gtk[0].flags &
1766 						IWL_WOWLAN_GTK_IDX_MASK;
1767 
1768 			/* Don't install a new key's value to an old key */
1769 			if (new_key_id != key->keyidx)
1770 				iwl_mvm_set_key_rx_seq_idx(key, status, i);
1771 			continue;
1772 		}
1773 
1774 		/* handle the case where we didn't, last key only */
1775 		if (status->gtk_seq[i].key_id == -1 &&
1776 		    (!status->num_of_gtk_rekeys || installed))
1777 			iwl_mvm_set_key_rx_seq_idx(key, status, i);
1778 	}
1779 }
1780 
1781 struct iwl_mvm_d3_gtk_iter_data {
1782 	struct iwl_mvm *mvm;
1783 	struct iwl_wowlan_status_data *status;
1784 	u32 gtk_cipher, igtk_cipher;
1785 	bool unhandled_cipher, igtk_support;
1786 	int num_keys;
1787 };
1788 
1789 static void iwl_mvm_d3_find_last_keys(struct ieee80211_hw *hw,
1790 				      struct ieee80211_vif *vif,
1791 				      struct ieee80211_sta *sta,
1792 				      struct ieee80211_key_conf *key,
1793 				      void *_data)
1794 {
1795 	struct iwl_mvm_d3_gtk_iter_data *data = _data;
1796 
1797 	if (data->unhandled_cipher)
1798 		return;
1799 
1800 	switch (key->cipher) {
1801 	case WLAN_CIPHER_SUITE_WEP40:
1802 	case WLAN_CIPHER_SUITE_WEP104:
1803 		/* ignore WEP completely, nothing to do */
1804 		return;
1805 	case WLAN_CIPHER_SUITE_CCMP:
1806 	case WLAN_CIPHER_SUITE_GCMP:
1807 	case WLAN_CIPHER_SUITE_GCMP_256:
1808 	case WLAN_CIPHER_SUITE_TKIP:
1809 		/* we support these */
1810 		data->gtk_cipher = key->cipher;
1811 		break;
1812 	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
1813 	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
1814 	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
1815 	case WLAN_CIPHER_SUITE_AES_CMAC:
1816 		/* we support these */
1817 		if (data->igtk_support &&
1818 		    (key->keyidx == 4 || key->keyidx == 5)) {
1819 			data->igtk_cipher = key->cipher;
1820 		} else {
1821 			data->unhandled_cipher = true;
1822 			return;
1823 		}
1824 		break;
1825 	default:
1826 		/* everything else - disconnect from AP */
1827 		data->unhandled_cipher = true;
1828 		return;
1829 	}
1830 
1831 	data->num_keys++;
1832 }
1833 
1834 static void
1835 iwl_mvm_d3_set_igtk_bigtk_ipn(const struct iwl_multicast_key_data *key,
1836 			      struct ieee80211_key_seq *seq, u32 cipher)
1837 {
1838 	switch (cipher) {
1839 	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
1840 	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
1841 		BUILD_BUG_ON(sizeof(seq->aes_gmac.pn) != sizeof(key->ipn));
1842 		memcpy(seq->aes_gmac.pn, key->ipn, sizeof(seq->aes_gmac.pn));
1843 		break;
1844 	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
1845 		BUILD_BUG_ON(sizeof(seq->aes_cmac.pn) != sizeof(key->ipn));
1846 		memcpy(seq->aes_cmac.pn, key->ipn, sizeof(seq->aes_cmac.pn));
1847 		break;
1848 	}
1849 }
1850 
1851 static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
1852 				   struct ieee80211_vif *vif,
1853 				   struct ieee80211_sta *sta,
1854 				   struct ieee80211_key_conf *key,
1855 				   void *_data)
1856 {
1857 	struct iwl_mvm_d3_gtk_iter_data *data = _data;
1858 	struct iwl_wowlan_status_data *status = data->status;
1859 	s8 keyidx;
1860 
1861 	if (data->unhandled_cipher)
1862 		return;
1863 
1864 	switch (key->cipher) {
1865 	case WLAN_CIPHER_SUITE_WEP40:
1866 	case WLAN_CIPHER_SUITE_WEP104:
1867 		/* ignore WEP completely, nothing to do */
1868 		return;
1869 	case WLAN_CIPHER_SUITE_CCMP:
1870 	case WLAN_CIPHER_SUITE_GCMP:
1871 	case WLAN_CIPHER_SUITE_GCMP_256:
1872 		if (sta) {
1873 			atomic64_set(&key->tx_pn, status->ptk.aes.tx_pn);
1874 			iwl_mvm_set_aes_ptk_rx_seq(data->mvm, status, sta, key);
1875 			return;
1876 		}
1877 		fallthrough;
1878 	case WLAN_CIPHER_SUITE_TKIP:
1879 		if (sta) {
1880 			atomic64_set(&key->tx_pn, status->ptk.tkip.tx_pn);
1881 			iwl_mvm_set_key_rx_seq_tids(key, status->ptk.tkip.seq);
1882 			return;
1883 		}
1884 		keyidx = key->keyidx;
1885 		/* The current key is always sent by the FW, even if it wasn't
1886 		 * rekeyed during D3.
1887 		 * We remove an existing key if it has the same index as
1888 		 * a new key
1889 		 */
1890 		if (status->num_of_gtk_rekeys &&
1891 		    ((status->gtk[0].len && keyidx == status->gtk[0].id) ||
1892 		     (status->gtk[1].len && keyidx == status->gtk[1].id))) {
1893 			ieee80211_remove_key(key);
1894 		} else {
1895 			iwl_mvm_set_key_rx_seq(key, data->status, false);
1896 		}
1897 		break;
1898 	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
1899 	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
1900 	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
1901 	case WLAN_CIPHER_SUITE_AES_CMAC:
1902 		if (key->keyidx == 4 || key->keyidx == 5) {
1903 			/* remove rekeyed key */
1904 			if (status->num_of_gtk_rekeys) {
1905 				ieee80211_remove_key(key);
1906 			} else {
1907 				struct ieee80211_key_seq seq;
1908 
1909 				iwl_mvm_d3_set_igtk_bigtk_ipn(&status->igtk,
1910 							      &seq,
1911 							      key->cipher);
1912 				ieee80211_set_key_rx_seq(key, 0, &seq);
1913 			}
1914 		}
1915 	}
1916 }
1917 
1918 static bool iwl_mvm_gtk_rekey(struct iwl_wowlan_status_data *status,
1919 			      struct ieee80211_vif *vif,
1920 			      struct iwl_mvm *mvm, u32 gtk_cipher)
1921 {
1922 	int i;
1923 	struct ieee80211_key_conf *key;
1924 	struct {
1925 		struct ieee80211_key_conf conf;
1926 		u8 key[32];
1927 	} conf = {
1928 		.conf.cipher = gtk_cipher,
1929 	};
1930 
1931 	BUILD_BUG_ON(WLAN_KEY_LEN_CCMP != WLAN_KEY_LEN_GCMP);
1932 	BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_CCMP);
1933 	BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_GCMP_256);
1934 	BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_TKIP);
1935 	BUILD_BUG_ON(sizeof(conf.key) < sizeof(status->gtk[0].key));
1936 
1937 	switch (gtk_cipher) {
1938 	case WLAN_CIPHER_SUITE_CCMP:
1939 	case WLAN_CIPHER_SUITE_GCMP:
1940 		conf.conf.keylen = WLAN_KEY_LEN_CCMP;
1941 		break;
1942 	case WLAN_CIPHER_SUITE_GCMP_256:
1943 		conf.conf.keylen = WLAN_KEY_LEN_GCMP_256;
1944 		break;
1945 	case WLAN_CIPHER_SUITE_TKIP:
1946 		conf.conf.keylen = WLAN_KEY_LEN_TKIP;
1947 		break;
1948 	default:
1949 		WARN_ON(1);
1950 	}
1951 
1952 	for (i = 0; i < ARRAY_SIZE(status->gtk); i++) {
1953 		if (!status->gtk[i].len)
1954 			continue;
1955 
1956 		conf.conf.keyidx = status->gtk[i].id;
1957 		IWL_DEBUG_WOWLAN(mvm,
1958 				 "Received from FW GTK cipher %d, key index %d\n",
1959 				 conf.conf.cipher, conf.conf.keyidx);
1960 		memcpy(conf.conf.key, status->gtk[i].key,
1961 		       sizeof(status->gtk[i].key));
1962 
1963 		key = ieee80211_gtk_rekey_add(vif, &conf.conf);
1964 		if (IS_ERR(key))
1965 			return false;
1966 		iwl_mvm_set_key_rx_seq_idx(key, status, i);
1967 	}
1968 
1969 	return true;
1970 }
1971 
1972 static bool
1973 iwl_mvm_d3_igtk_bigtk_rekey_add(struct iwl_wowlan_status_data *status,
1974 				struct ieee80211_vif *vif, u32 cipher,
1975 				struct iwl_multicast_key_data *key_data)
1976 {
1977 	struct ieee80211_key_conf *key_config;
1978 	struct {
1979 		struct ieee80211_key_conf conf;
1980 		u8 key[WOWLAN_KEY_MAX_SIZE];
1981 	} conf = {
1982 		.conf.cipher = cipher,
1983 		.conf.keyidx = key_data->id,
1984 	};
1985 	struct ieee80211_key_seq seq;
1986 
1987 	if (!key_data->len)
1988 		return true;
1989 
1990 	iwl_mvm_d3_set_igtk_bigtk_ipn(key_data, &seq, conf.conf.cipher);
1991 
1992 	switch (cipher) {
1993 	case WLAN_CIPHER_SUITE_BIP_GMAC_128:
1994 		conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_128;
1995 		break;
1996 	case WLAN_CIPHER_SUITE_BIP_GMAC_256:
1997 		conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_256;
1998 		break;
1999 	case WLAN_CIPHER_SUITE_AES_CMAC:
2000 		conf.conf.keylen = WLAN_KEY_LEN_AES_CMAC;
2001 		break;
2002 	case WLAN_CIPHER_SUITE_BIP_CMAC_256:
2003 		conf.conf.keylen = WLAN_KEY_LEN_BIP_CMAC_256;
2004 		break;
2005 	default:
2006 		WARN_ON(1);
2007 	}
2008 	BUILD_BUG_ON(sizeof(conf.key) < sizeof(key_data->key));
2009 	memcpy(conf.conf.key, key_data->key, conf.conf.keylen);
2010 
2011 	key_config = ieee80211_gtk_rekey_add(vif, &conf.conf);
2012 	if (IS_ERR(key_config))
2013 		return false;
2014 	ieee80211_set_key_rx_seq(key_config, 0, &seq);
2015 	return true;
2016 }
2017 
2018 static int iwl_mvm_lookup_wowlan_status_ver(struct iwl_mvm *mvm)
2019 {
2020 	u8 notif_ver;
2021 
2022 	if (!fw_has_api(&mvm->fw->ucode_capa,
2023 			IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL))
2024 		return 6;
2025 
2026 	/* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */
2027 	notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
2028 					    WOWLAN_GET_STATUSES, 0);
2029 	if (!notif_ver)
2030 		notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,
2031 						    WOWLAN_GET_STATUSES, 7);
2032 
2033 	return notif_ver;
2034 }
2035 
2036 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
2037 					  struct ieee80211_vif *vif,
2038 					  struct iwl_wowlan_status_data *status)
2039 {
2040 	struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2041 	struct iwl_mvm_d3_gtk_iter_data gtkdata = {
2042 		.mvm = mvm,
2043 		.status = status,
2044 	};
2045 	u32 disconnection_reasons =
2046 		IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
2047 		IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
2048 
2049 	if (!status || !vif->bss_conf.bssid)
2050 		return false;
2051 
2052 	if (status->wakeup_reasons & disconnection_reasons)
2053 		return false;
2054 
2055 	if (iwl_mvm_lookup_wowlan_status_ver(mvm) > 6 ||
2056 	    iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
2057 				    WOWLAN_INFO_NOTIFICATION,
2058 				    0))
2059 		gtkdata.igtk_support = true;
2060 
2061 	/* find last GTK that we used initially, if any */
2062 	ieee80211_iter_keys(mvm->hw, vif,
2063 			    iwl_mvm_d3_find_last_keys, &gtkdata);
2064 	/* not trying to keep connections with MFP/unhandled ciphers */
2065 	if (gtkdata.unhandled_cipher)
2066 		return false;
2067 	if (!gtkdata.num_keys)
2068 		goto out;
2069 
2070 	/*
2071 	 * invalidate all other GTKs that might still exist and update
2072 	 * the one that we used
2073 	 */
2074 	ieee80211_iter_keys(mvm->hw, vif,
2075 			    iwl_mvm_d3_update_keys, &gtkdata);
2076 
2077 	if (status->num_of_gtk_rekeys) {
2078 		__be64 replay_ctr = cpu_to_be64(status->replay_ctr);
2079 
2080 		IWL_DEBUG_WOWLAN(mvm, "num of GTK rekeying %d\n",
2081 				 status->num_of_gtk_rekeys);
2082 
2083 		if (!iwl_mvm_gtk_rekey(status, vif, mvm, gtkdata.gtk_cipher))
2084 			return false;
2085 
2086 		if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif,
2087 						     gtkdata.igtk_cipher,
2088 						     &status->igtk))
2089 			return false;
2090 
2091 		ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid,
2092 					   (void *)&replay_ctr, GFP_KERNEL);
2093 	}
2094 
2095 out:
2096 	if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
2097 				    WOWLAN_GET_STATUSES, 0) < 10) {
2098 		mvmvif->seqno_valid = true;
2099 		/* +0x10 because the set API expects next-to-use, not last-used */
2100 		mvmvif->seqno = status->non_qos_seq_ctr + 0x10;
2101 	}
2102 
2103 	return true;
2104 }
2105 
2106 static void iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data *status,
2107 				   struct iwl_wowlan_gtk_status_v2 *data)
2108 {
2109 	BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data->key));
2110 	BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2111 		     sizeof(data->tkip_mic_key) >
2112 		     sizeof(status->gtk[0].key));
2113 
2114 	status->gtk[0].len = data->key_len;
2115 	status->gtk[0].flags = data->key_flags;
2116 
2117 	memcpy(status->gtk[0].key, data->key, sizeof(data->key));
2118 
2119 	/* if it's as long as the TKIP encryption key, copy MIC key */
2120 	if (status->gtk[0].len == NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY)
2121 		memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2122 		       data->tkip_mic_key, sizeof(data->tkip_mic_key));
2123 }
2124 
2125 static void iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data *status,
2126 				   struct iwl_wowlan_gtk_status_v3 *data)
2127 {
2128 	int data_idx, status_idx = 0;
2129 
2130 	BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data[0].key));
2131 	BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2132 		     sizeof(data[0].tkip_mic_key) >
2133 		     sizeof(status->gtk[0].key));
2134 	BUILD_BUG_ON(ARRAY_SIZE(status->gtk) < WOWLAN_GTK_KEYS_NUM);
2135 	for (data_idx = 0; data_idx < ARRAY_SIZE(status->gtk); data_idx++) {
2136 		if (!(data[data_idx].key_len))
2137 			continue;
2138 		status->gtk[status_idx].len = data[data_idx].key_len;
2139 		status->gtk[status_idx].flags = data[data_idx].key_flags;
2140 		status->gtk[status_idx].id = status->gtk[status_idx].flags &
2141 				    IWL_WOWLAN_GTK_IDX_MASK;
2142 
2143 		memcpy(status->gtk[status_idx].key, data[data_idx].key,
2144 		       sizeof(data[data_idx].key));
2145 
2146 		/* if it's as long as the TKIP encryption key, copy MIC key */
2147 		if (status->gtk[status_idx].len ==
2148 		    NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY)
2149 			memcpy(status->gtk[status_idx].key +
2150 			       NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2151 			       data[data_idx].tkip_mic_key,
2152 			       sizeof(data[data_idx].tkip_mic_key));
2153 		status_idx++;
2154 	}
2155 }
2156 
2157 static void iwl_mvm_convert_igtk(struct iwl_wowlan_status_data *status,
2158 				 struct iwl_wowlan_igtk_status *data)
2159 {
2160 	BUILD_BUG_ON(sizeof(status->igtk.key) < sizeof(data->key));
2161 
2162 	if (!data->key_len)
2163 		return;
2164 
2165 	status->igtk.len = data->key_len;
2166 	status->igtk.flags = data->key_flags;
2167 	status->igtk.id = u32_get_bits(data->key_flags,
2168 				       IWL_WOWLAN_IGTK_BIGTK_IDX_MASK)
2169 		+ WOWLAN_IGTK_MIN_INDEX;
2170 
2171 	memcpy(status->igtk.key, data->key, sizeof(data->key));
2172 	memcpy(status->igtk.ipn, data->ipn, sizeof(data->ipn));
2173 }
2174 
2175 static void iwl_mvm_parse_wowlan_info_notif(struct iwl_mvm *mvm,
2176 					    struct iwl_wowlan_info_notif *data,
2177 					    struct iwl_wowlan_status_data *status,
2178 					    u32 len)
2179 {
2180 	u32 i;
2181 
2182 	if (!data) {
2183 		IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n");
2184 		status = NULL;
2185 		return;
2186 	}
2187 
2188 	if (len < sizeof(*data)) {
2189 		IWL_ERR(mvm, "Invalid WoWLAN info notification!\n");
2190 		status = NULL;
2191 		return;
2192 	}
2193 
2194 	iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc);
2195 	iwl_mvm_convert_gtk_v3(status, data->gtk);
2196 	iwl_mvm_convert_igtk(status, &data->igtk[0]);
2197 
2198 	status->replay_ctr = le64_to_cpu(data->replay_ctr);
2199 	status->pattern_number = le16_to_cpu(data->pattern_number);
2200 	for (i = 0; i < IWL_MAX_TID_COUNT; i++)
2201 		status->qos_seq_ctr[i] =
2202 			le16_to_cpu(data->qos_seq_ctr[i]);
2203 	status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons);
2204 	status->num_of_gtk_rekeys =
2205 		le32_to_cpu(data->num_of_gtk_rekeys);
2206 	status->received_beacons = le32_to_cpu(data->received_beacons);
2207 	status->tid_tear_down = data->tid_tear_down;
2208 }
2209 
2210 /* Occasionally, templates would be nice. This is one of those times ... */
2211 #define iwl_mvm_parse_wowlan_status_common(_ver)			\
2212 static struct iwl_wowlan_status_data *					\
2213 iwl_mvm_parse_wowlan_status_common_ ## _ver(struct iwl_mvm *mvm,	\
2214 					    struct iwl_wowlan_status_ ##_ver *data,\
2215 					    int len)			\
2216 {									\
2217 	struct iwl_wowlan_status_data *status;				\
2218 	int data_size, i;						\
2219 									\
2220 	if (len < sizeof(*data)) {					\
2221 		IWL_ERR(mvm, "Invalid WoWLAN status response!\n");	\
2222 		return NULL;						\
2223 	}								\
2224 									\
2225 	data_size = ALIGN(le32_to_cpu(data->wake_packet_bufsize), 4);	\
2226 	if (len != sizeof(*data) + data_size) {				\
2227 		IWL_ERR(mvm, "Invalid WoWLAN status response!\n");	\
2228 		return NULL;						\
2229 	}								\
2230 									\
2231 	status = kzalloc(sizeof(*status), GFP_KERNEL);			\
2232 	if (!status)							\
2233 		return NULL;						\
2234 									\
2235 	/* copy all the common fields */				\
2236 	status->replay_ctr = le64_to_cpu(data->replay_ctr);		\
2237 	status->pattern_number = le16_to_cpu(data->pattern_number);	\
2238 	status->non_qos_seq_ctr = le16_to_cpu(data->non_qos_seq_ctr);	\
2239 	for (i = 0; i < 8; i++)						\
2240 		status->qos_seq_ctr[i] =				\
2241 			le16_to_cpu(data->qos_seq_ctr[i]);		\
2242 	status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons);	\
2243 	status->num_of_gtk_rekeys =					\
2244 		le32_to_cpu(data->num_of_gtk_rekeys);			\
2245 	status->received_beacons = le32_to_cpu(data->received_beacons);	\
2246 	status->wake_packet_length =					\
2247 		le32_to_cpu(data->wake_packet_length);			\
2248 	status->wake_packet_bufsize =					\
2249 		le32_to_cpu(data->wake_packet_bufsize);			\
2250 	if (status->wake_packet_bufsize) {				\
2251 		status->wake_packet =					\
2252 			kmemdup(data->wake_packet,			\
2253 				status->wake_packet_bufsize,		\
2254 				GFP_KERNEL);				\
2255 		if (!status->wake_packet) {				\
2256 			kfree(status);					\
2257 			return NULL;					\
2258 		}							\
2259 	} else {							\
2260 		status->wake_packet = NULL;				\
2261 	}								\
2262 									\
2263 	return status;							\
2264 }
2265 
2266 iwl_mvm_parse_wowlan_status_common(v6)
2267 iwl_mvm_parse_wowlan_status_common(v7)
2268 iwl_mvm_parse_wowlan_status_common(v9)
2269 iwl_mvm_parse_wowlan_status_common(v12)
2270 
2271 static struct iwl_wowlan_status_data *
2272 iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id)
2273 {
2274 	struct iwl_wowlan_status_data *status;
2275 	struct iwl_wowlan_get_status_cmd get_status_cmd = {
2276 		.sta_id = cpu_to_le32(sta_id),
2277 	};
2278 	struct iwl_host_cmd cmd = {
2279 		.id = WOWLAN_GET_STATUSES,
2280 		.flags = CMD_WANT_SKB,
2281 		.data = { &get_status_cmd, },
2282 		.len = { sizeof(get_status_cmd), },
2283 	};
2284 	int ret, len;
2285 	u8 notif_ver;
2286 	u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id,
2287 					   IWL_FW_CMD_VER_UNKNOWN);
2288 
2289 	if (cmd_ver == IWL_FW_CMD_VER_UNKNOWN)
2290 		cmd.len[0] = 0;
2291 
2292 	lockdep_assert_held(&mvm->mutex);
2293 
2294 	ret = iwl_mvm_send_cmd(mvm, &cmd);
2295 	if (ret) {
2296 		IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret);
2297 		return ERR_PTR(ret);
2298 	}
2299 
2300 	len = iwl_rx_packet_payload_len(cmd.resp_pkt);
2301 
2302 	/* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */
2303 	notif_ver = iwl_mvm_lookup_wowlan_status_ver(mvm);
2304 
2305 	if (notif_ver < 7) {
2306 		struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data;
2307 
2308 		status = iwl_mvm_parse_wowlan_status_common_v6(mvm, v6, len);
2309 		if (!status)
2310 			goto out_free_resp;
2311 
2312 		BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) >
2313 			     sizeof(status->gtk[0].key));
2314 		BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2315 			     sizeof(v6->gtk.tkip_mic_key) >
2316 			     sizeof(status->gtk[0].key));
2317 
2318 		/* copy GTK info to the right place */
2319 		memcpy(status->gtk[0].key, v6->gtk.decrypt_key,
2320 		       sizeof(v6->gtk.decrypt_key));
2321 		memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2322 		       v6->gtk.tkip_mic_key,
2323 		       sizeof(v6->gtk.tkip_mic_key));
2324 
2325 		iwl_mvm_convert_key_counters(status, &v6->gtk.rsc.all_tsc_rsc);
2326 
2327 		/* hardcode the key length to 16 since v6 only supports 16 */
2328 		status->gtk[0].len = 16;
2329 
2330 		/*
2331 		 * The key index only uses 2 bits (values 0 to 3) and
2332 		 * we always set bit 7 which means this is the
2333 		 * currently used key.
2334 		 */
2335 		status->gtk[0].flags = v6->gtk.key_index | BIT(7);
2336 	} else if (notif_ver == 7) {
2337 		struct iwl_wowlan_status_v7 *v7 = (void *)cmd.resp_pkt->data;
2338 
2339 		status = iwl_mvm_parse_wowlan_status_common_v7(mvm, v7, len);
2340 		if (!status)
2341 			goto out_free_resp;
2342 
2343 		iwl_mvm_convert_key_counters(status, &v7->gtk[0].rsc.all_tsc_rsc);
2344 		iwl_mvm_convert_gtk_v2(status, &v7->gtk[0]);
2345 		iwl_mvm_convert_igtk(status, &v7->igtk[0]);
2346 	} else if (notif_ver == 9 || notif_ver == 10 || notif_ver == 11) {
2347 		struct iwl_wowlan_status_v9 *v9 = (void *)cmd.resp_pkt->data;
2348 
2349 		/* these three command versions have same layout and size, the
2350 		 * difference is only in a few not used (reserved) fields.
2351 		 */
2352 		status = iwl_mvm_parse_wowlan_status_common_v9(mvm, v9, len);
2353 		if (!status)
2354 			goto out_free_resp;
2355 
2356 		iwl_mvm_convert_key_counters(status, &v9->gtk[0].rsc.all_tsc_rsc);
2357 		iwl_mvm_convert_gtk_v2(status, &v9->gtk[0]);
2358 		iwl_mvm_convert_igtk(status, &v9->igtk[0]);
2359 
2360 		status->tid_tear_down = v9->tid_tear_down;
2361 	} else if (notif_ver == 12) {
2362 		struct iwl_wowlan_status_v12 *v12 = (void *)cmd.resp_pkt->data;
2363 
2364 		status = iwl_mvm_parse_wowlan_status_common_v12(mvm, v12, len);
2365 		if (!status)
2366 			goto out_free_resp;
2367 
2368 		iwl_mvm_convert_key_counters_v5(status, &v12->gtk[0].sc);
2369 		iwl_mvm_convert_gtk_v3(status, v12->gtk);
2370 		iwl_mvm_convert_igtk(status, &v12->igtk[0]);
2371 
2372 		status->tid_tear_down = v12->tid_tear_down;
2373 	} else {
2374 		IWL_ERR(mvm,
2375 			"Firmware advertises unknown WoWLAN status response %d!\n",
2376 			notif_ver);
2377 		status = NULL;
2378 	}
2379 
2380 out_free_resp:
2381 	iwl_free_resp(&cmd);
2382 	return status;
2383 }
2384 
2385 /* releases the MVM mutex */
2386 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
2387 					 struct ieee80211_vif *vif,
2388 					 struct iwl_wowlan_status_data *status)
2389 {
2390 	int i;
2391 	bool keep;
2392 	struct iwl_mvm_sta *mvm_ap_sta;
2393 
2394 	if (!status)
2395 		goto out_unlock;
2396 
2397 	IWL_DEBUG_WOWLAN(mvm, "wakeup reason 0x%x\n",
2398 			 status->wakeup_reasons);
2399 
2400 	/* still at hard-coded place 0 for D3 image */
2401 	mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, 0);
2402 	if (!mvm_ap_sta)
2403 		goto out_unlock;
2404 
2405 	for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
2406 		u16 seq = status->qos_seq_ctr[i];
2407 		/* firmware stores last-used value, we store next value */
2408 		seq += 0x10;
2409 		mvm_ap_sta->tid_data[i].seq_number = seq;
2410 	}
2411 
2412 	if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) {
2413 		i = mvm->offload_tid;
2414 		iwl_trans_set_q_ptrs(mvm->trans,
2415 				     mvm_ap_sta->tid_data[i].txq_id,
2416 				     mvm_ap_sta->tid_data[i].seq_number >> 4);
2417 	}
2418 
2419 	/* now we have all the data we need, unlock to avoid mac80211 issues */
2420 	mutex_unlock(&mvm->mutex);
2421 
2422 	iwl_mvm_report_wakeup_reasons(mvm, vif, status);
2423 
2424 	keep = iwl_mvm_setup_connection_keep(mvm, vif, status);
2425 
2426 	return keep;
2427 
2428 out_unlock:
2429 	mutex_unlock(&mvm->mutex);
2430 	return false;
2431 }
2432 
2433 #define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \
2434 			  IWL_SCAN_MAX_PROFILES)
2435 
2436 struct iwl_mvm_nd_results {
2437 	u32 matched_profiles;
2438 	u8 matches[ND_QUERY_BUF_LEN];
2439 };
2440 
2441 static int
2442 iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
2443 				struct iwl_mvm_nd_results *results)
2444 {
2445 	struct iwl_scan_offload_match_info *query;
2446 	struct iwl_host_cmd cmd = {
2447 		.id = SCAN_OFFLOAD_PROFILES_QUERY_CMD,
2448 		.flags = CMD_WANT_SKB,
2449 	};
2450 	int ret, len;
2451 	size_t query_len, matches_len;
2452 	int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw);
2453 
2454 	ret = iwl_mvm_send_cmd(mvm, &cmd);
2455 	if (ret) {
2456 		IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret);
2457 		return ret;
2458 	}
2459 
2460 	if (fw_has_api(&mvm->fw->ucode_capa,
2461 		       IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2462 		query_len = sizeof(struct iwl_scan_offload_match_info);
2463 		matches_len = sizeof(struct iwl_scan_offload_profile_match) *
2464 			max_profiles;
2465 	} else {
2466 		query_len = sizeof(struct iwl_scan_offload_profiles_query_v1);
2467 		matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) *
2468 			max_profiles;
2469 	}
2470 
2471 	len = iwl_rx_packet_payload_len(cmd.resp_pkt);
2472 	if (len < query_len) {
2473 		IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");
2474 		ret = -EIO;
2475 		goto out_free_resp;
2476 	}
2477 
2478 	query = (void *)cmd.resp_pkt->data;
2479 
2480 	results->matched_profiles = le32_to_cpu(query->matched_profiles);
2481 	memcpy(results->matches, query->matches, matches_len);
2482 
2483 #ifdef CONFIG_IWLWIFI_DEBUGFS
2484 	mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done);
2485 #endif
2486 
2487 out_free_resp:
2488 	iwl_free_resp(&cmd);
2489 	return ret;
2490 }
2491 
2492 static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm,
2493 					 struct iwl_mvm_nd_results *results,
2494 					 int idx)
2495 {
2496 	int n_chans = 0, i;
2497 
2498 	if (fw_has_api(&mvm->fw->ucode_capa,
2499 		       IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2500 		struct iwl_scan_offload_profile_match *matches =
2501 			(void *)results->matches;
2502 
2503 		for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++)
2504 			n_chans += hweight8(matches[idx].matching_channels[i]);
2505 	} else {
2506 		struct iwl_scan_offload_profile_match_v1 *matches =
2507 			(void *)results->matches;
2508 
2509 		for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++)
2510 			n_chans += hweight8(matches[idx].matching_channels[i]);
2511 	}
2512 
2513 	return n_chans;
2514 }
2515 
2516 static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm,
2517 				    struct iwl_mvm_nd_results *results,
2518 				    struct cfg80211_wowlan_nd_match *match,
2519 				    int idx)
2520 {
2521 	int i;
2522 
2523 	if (fw_has_api(&mvm->fw->ucode_capa,
2524 		       IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2525 		struct iwl_scan_offload_profile_match *matches =
2526 			 (void *)results->matches;
2527 
2528 		for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++)
2529 			if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2530 				match->channels[match->n_channels++] =
2531 					mvm->nd_channels[i]->center_freq;
2532 	} else {
2533 		struct iwl_scan_offload_profile_match_v1 *matches =
2534 			 (void *)results->matches;
2535 
2536 		for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++)
2537 			if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2538 				match->channels[match->n_channels++] =
2539 					mvm->nd_channels[i]->center_freq;
2540 	}
2541 }
2542 
2543 /**
2544  * enum iwl_d3_notif - d3 notifications
2545  * @IWL_D3_NOTIF_WOWLAN_INFO: WOWLAN_INFO_NOTIF was received
2546  * @IWL_D3_NOTIF_WOWLAN_WAKE_PKT: WOWLAN_WAKE_PKT_NOTIF was received
2547  * @IWL_D3_NOTIF_PROT_OFFLOAD: PROT_OFFLOAD_NOTIF was received
2548  * @IWL_D3_ND_MATCH_INFO: OFFLOAD_MATCH_INFO_NOTIF was received
2549  * @IWL_D3_NOTIF_D3_END_NOTIF: D3_END_NOTIF was received
2550  */
2551 enum iwl_d3_notif {
2552 	IWL_D3_NOTIF_WOWLAN_INFO =	BIT(0),
2553 	IWL_D3_NOTIF_WOWLAN_WAKE_PKT =	BIT(1),
2554 	IWL_D3_NOTIF_PROT_OFFLOAD =	BIT(2),
2555 	IWL_D3_ND_MATCH_INFO      =     BIT(3),
2556 	IWL_D3_NOTIF_D3_END_NOTIF =	BIT(4)
2557 };
2558 
2559 /* manage d3 resume data */
2560 struct iwl_d3_data {
2561 	struct iwl_wowlan_status_data *status;
2562 	bool test;
2563 	u32 d3_end_flags;
2564 	u32 notif_expected;	/* bitmap - see &enum iwl_d3_notif */
2565 	u32 notif_received;	/* bitmap - see &enum iwl_d3_notif */
2566 	struct iwl_mvm_nd_results *nd_results;
2567 	bool nd_results_valid;
2568 };
2569 
2570 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
2571 					    struct ieee80211_vif *vif,
2572 					    struct iwl_d3_data *d3_data)
2573 {
2574 	struct cfg80211_wowlan_nd_info *net_detect = NULL;
2575 	struct cfg80211_wowlan_wakeup wakeup = {
2576 		.pattern_idx = -1,
2577 	};
2578 	struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
2579 	unsigned long matched_profiles;
2580 	u32 reasons = 0;
2581 	int i, n_matches, ret;
2582 
2583 	if (WARN_ON(!d3_data || !d3_data->status))
2584 		goto out;
2585 
2586 	reasons = d3_data->status->wakeup_reasons;
2587 
2588 	if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
2589 		wakeup.rfkill_release = true;
2590 
2591 	if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS)
2592 		goto out;
2593 
2594 	if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
2595 				     WOWLAN_INFO_NOTIFICATION, 0)) {
2596 		IWL_INFO(mvm, "Query FW for ND results\n");
2597 		ret = iwl_mvm_netdetect_query_results(mvm, d3_data->nd_results);
2598 
2599 	} else {
2600 		IWL_INFO(mvm, "Notification based ND results\n");
2601 		ret = d3_data->nd_results_valid ? 0 : -1;
2602 	}
2603 
2604 	if (ret || !d3_data->nd_results->matched_profiles) {
2605 		wakeup_report = NULL;
2606 		goto out;
2607 	}
2608 
2609 	matched_profiles = d3_data->nd_results->matched_profiles;
2610 	if (mvm->n_nd_match_sets) {
2611 		n_matches = hweight_long(matched_profiles);
2612 	} else {
2613 		IWL_ERR(mvm, "no net detect match information available\n");
2614 		n_matches = 0;
2615 	}
2616 
2617 	net_detect = kzalloc(struct_size(net_detect, matches, n_matches),
2618 			     GFP_KERNEL);
2619 	if (!net_detect || !n_matches)
2620 		goto out_report_nd;
2621 
2622 	for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) {
2623 		struct cfg80211_wowlan_nd_match *match;
2624 		int idx, n_channels = 0;
2625 
2626 		n_channels = iwl_mvm_query_num_match_chans(mvm,
2627 							   d3_data->nd_results,
2628 							   i);
2629 
2630 		match = kzalloc(struct_size(match, channels, n_channels),
2631 				GFP_KERNEL);
2632 		if (!match)
2633 			goto out_report_nd;
2634 
2635 		net_detect->matches[net_detect->n_matches++] = match;
2636 
2637 		/* We inverted the order of the SSIDs in the scan
2638 		 * request, so invert the index here.
2639 		 */
2640 		idx = mvm->n_nd_match_sets - i - 1;
2641 		match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len;
2642 		memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid,
2643 		       match->ssid.ssid_len);
2644 
2645 		if (mvm->n_nd_channels < n_channels)
2646 			continue;
2647 
2648 		iwl_mvm_query_set_freqs(mvm, d3_data->nd_results, match, i);
2649 	}
2650 
2651 out_report_nd:
2652 	wakeup.net_detect = net_detect;
2653 out:
2654 	iwl_mvm_free_nd(mvm);
2655 
2656 	mutex_unlock(&mvm->mutex);
2657 	ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
2658 
2659 	if (net_detect) {
2660 		for (i = 0; i < net_detect->n_matches; i++)
2661 			kfree(net_detect->matches[i]);
2662 		kfree(net_detect);
2663 	}
2664 }
2665 
2666 static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
2667 				       struct ieee80211_vif *vif)
2668 {
2669 	/* skip the one we keep connection on */
2670 	if (data == vif)
2671 		return;
2672 
2673 	if (vif->type == NL80211_IFTYPE_STATION)
2674 		ieee80211_resume_disconnect(vif);
2675 }
2676 
2677 static bool iwl_mvm_rt_status(struct iwl_trans *trans, u32 base, u32 *err_id)
2678 {
2679 	struct error_table_start {
2680 		/* cf. struct iwl_error_event_table */
2681 		u32 valid;
2682 		__le32 err_id;
2683 	} err_info;
2684 
2685 	if (!base)
2686 		return false;
2687 
2688 	iwl_trans_read_mem_bytes(trans, base,
2689 				 &err_info, sizeof(err_info));
2690 	if (err_info.valid && err_id)
2691 		*err_id = le32_to_cpu(err_info.err_id);
2692 
2693 	return !!err_info.valid;
2694 }
2695 
2696 static bool iwl_mvm_check_rt_status(struct iwl_mvm *mvm,
2697 				   struct ieee80211_vif *vif)
2698 {
2699 	u32 err_id;
2700 
2701 	/* check for lmac1 error */
2702 	if (iwl_mvm_rt_status(mvm->trans,
2703 			      mvm->trans->dbg.lmac_error_event_table[0],
2704 			      &err_id)) {
2705 		if (err_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
2706 			struct cfg80211_wowlan_wakeup wakeup = {
2707 				.rfkill_release = true,
2708 			};
2709 			ieee80211_report_wowlan_wakeup(vif, &wakeup,
2710 						       GFP_KERNEL);
2711 		}
2712 		return true;
2713 	}
2714 
2715 	/* check if we have lmac2 set and check for error */
2716 	if (iwl_mvm_rt_status(mvm->trans,
2717 			      mvm->trans->dbg.lmac_error_event_table[1], NULL))
2718 		return true;
2719 
2720 	/* check for umac error */
2721 	if (iwl_mvm_rt_status(mvm->trans,
2722 			      mvm->trans->dbg.umac_error_event_table, NULL))
2723 		return true;
2724 
2725 	return false;
2726 }
2727 
2728 /*
2729  * This function assumes:
2730  *	1. The mutex is already held.
2731  *	2. The callee functions unlock the mutex.
2732  */
2733 static bool
2734 iwl_mvm_choose_query_wakeup_reasons(struct iwl_mvm *mvm,
2735 				    struct ieee80211_vif *vif,
2736 				    struct iwl_d3_data *d3_data)
2737 {
2738 	lockdep_assert_held(&mvm->mutex);
2739 
2740 	/* if FW uses status notification, status shouldn't be NULL here */
2741 	if (!d3_data->status) {
2742 		struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2743 		u8 sta_id = mvm->net_detect ? IWL_MVM_INVALID_STA :
2744 					      mvmvif->deflink.ap_sta_id;
2745 
2746 		d3_data->status = iwl_mvm_send_wowlan_get_status(mvm, sta_id);
2747 	}
2748 
2749 	if (mvm->net_detect) {
2750 		iwl_mvm_query_netdetect_reasons(mvm, vif, d3_data);
2751 	} else {
2752 		bool keep = iwl_mvm_query_wakeup_reasons(mvm, vif,
2753 							 d3_data->status);
2754 
2755 #ifdef CONFIG_IWLWIFI_DEBUGFS
2756 		if (keep)
2757 			mvm->keep_vif = vif;
2758 #endif
2759 
2760 		return keep;
2761 	}
2762 	return false;
2763 }
2764 
2765 #define IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT (IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET | \
2766 						 IWL_WOWLAN_WAKEUP_BY_PATTERN | \
2767 						 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN |\
2768 						 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN_WILDCARD |\
2769 						 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN |\
2770 						 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN_WILDCARD)
2771 
2772 static int iwl_mvm_wowlan_store_wake_pkt(struct iwl_mvm *mvm,
2773 					 struct iwl_wowlan_wake_pkt_notif *notif,
2774 					 struct iwl_wowlan_status_data *status,
2775 					 u32 len)
2776 {
2777 	u32 data_size, packet_len = le32_to_cpu(notif->wake_packet_length);
2778 
2779 	if (len < sizeof(*notif)) {
2780 		IWL_ERR(mvm, "Invalid WoWLAN wake packet notification!\n");
2781 		return -EIO;
2782 	}
2783 
2784 	if (WARN_ON(!status)) {
2785 		IWL_ERR(mvm, "Got wake packet notification but wowlan status data is NULL\n");
2786 		return -EIO;
2787 	}
2788 
2789 	if (WARN_ON(!(status->wakeup_reasons &
2790 		      IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT))) {
2791 		IWL_ERR(mvm, "Got wakeup packet but wakeup reason is %x\n",
2792 			status->wakeup_reasons);
2793 		return -EIO;
2794 	}
2795 
2796 	data_size = len - offsetof(struct iwl_wowlan_wake_pkt_notif, wake_packet);
2797 
2798 	/* data_size got the padding from the notification, remove it. */
2799 	if (packet_len < data_size)
2800 		data_size = packet_len;
2801 
2802 	status->wake_packet = kmemdup(notif->wake_packet, data_size,
2803 				      GFP_ATOMIC);
2804 
2805 	if (!status->wake_packet)
2806 		return -ENOMEM;
2807 
2808 	status->wake_packet_length = packet_len;
2809 	status->wake_packet_bufsize = data_size;
2810 
2811 	return 0;
2812 }
2813 
2814 static void iwl_mvm_nd_match_info_handler(struct iwl_mvm *mvm,
2815 					  struct iwl_d3_data *d3_data,
2816 					  struct iwl_scan_offload_match_info *notif,
2817 					  u32 len)
2818 {
2819 	struct iwl_wowlan_status_data *status = d3_data->status;
2820 	struct ieee80211_vif *vif = iwl_mvm_get_bss_vif(mvm);
2821 	struct iwl_mvm_nd_results *results = d3_data->nd_results;
2822 	size_t i, matches_len = sizeof(struct iwl_scan_offload_profile_match) *
2823 		iwl_umac_scan_get_max_profiles(mvm->fw);
2824 
2825 	if (IS_ERR_OR_NULL(vif))
2826 		return;
2827 
2828 	if (len < sizeof(struct iwl_scan_offload_match_info)) {
2829 		IWL_ERR(mvm, "Invalid scan match info notification\n");
2830 		return;
2831 	}
2832 
2833 	if (!mvm->net_detect) {
2834 		IWL_ERR(mvm, "Unexpected scan match info notification\n");
2835 		return;
2836 	}
2837 
2838 	if (!status || status->wakeup_reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
2839 		IWL_ERR(mvm,
2840 			"Ignore scan match info notification: no reason\n");
2841 		return;
2842 	}
2843 
2844 #ifdef CONFIG_IWLWIFI_DEBUGFS
2845 	mvm->last_netdetect_scans = le32_to_cpu(notif->n_scans_done);
2846 #endif
2847 
2848 	results->matched_profiles = le32_to_cpu(notif->matched_profiles);
2849 	IWL_INFO(mvm, "number of matched profiles=%u\n",
2850 		 results->matched_profiles);
2851 
2852 	if (results->matched_profiles) {
2853 		memcpy(results->matches, notif->matches, matches_len);
2854 		d3_data->nd_results_valid = TRUE;
2855 	}
2856 
2857 	/* no scan should be active at this point */
2858 	mvm->scan_status = 0;
2859 	for (i = 0; i < mvm->max_scans; i++)
2860 		mvm->scan_uid_status[i] = 0;
2861 }
2862 
2863 static bool iwl_mvm_wait_d3_notif(struct iwl_notif_wait_data *notif_wait,
2864 				  struct iwl_rx_packet *pkt, void *data)
2865 {
2866 	struct iwl_mvm *mvm =
2867 		container_of(notif_wait, struct iwl_mvm, notif_wait);
2868 	struct iwl_d3_data *d3_data = data;
2869 	u32 len;
2870 	int ret;
2871 	int wowlan_info_ver = iwl_fw_lookup_notif_ver(mvm->fw,
2872 						      PROT_OFFLOAD_GROUP,
2873 						      WOWLAN_INFO_NOTIFICATION,
2874 						      IWL_FW_CMD_VER_UNKNOWN);
2875 
2876 
2877 	switch (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) {
2878 	case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION): {
2879 		struct iwl_wowlan_info_notif *notif;
2880 
2881 		if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_INFO) {
2882 			/* We might get two notifications due to dual bss */
2883 			IWL_DEBUG_WOWLAN(mvm,
2884 					 "Got additional wowlan info notification\n");
2885 			break;
2886 		}
2887 
2888 		if (wowlan_info_ver < 2) {
2889 			struct iwl_wowlan_info_notif_v1 *notif_v1 = (void *)pkt->data;
2890 
2891 			notif = kmemdup(notif_v1, sizeof(*notif), GFP_ATOMIC);
2892 			if (!notif)
2893 				return false;
2894 
2895 			notif->tid_tear_down = notif_v1->tid_tear_down;
2896 			notif->station_id = notif_v1->station_id;
2897 			memset_after(notif, 0, station_id);
2898 		} else {
2899 			notif = (void *)pkt->data;
2900 		}
2901 
2902 		d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_INFO;
2903 		len = iwl_rx_packet_payload_len(pkt);
2904 		iwl_mvm_parse_wowlan_info_notif(mvm, notif, d3_data->status,
2905 						len);
2906 
2907 		if (wowlan_info_ver < 2)
2908 			kfree(notif);
2909 
2910 		if (d3_data->status &&
2911 		    d3_data->status->wakeup_reasons & IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT)
2912 			/* We are supposed to get also wake packet notif */
2913 			d3_data->notif_expected |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT;
2914 
2915 		break;
2916 	}
2917 	case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION): {
2918 		struct iwl_wowlan_wake_pkt_notif *notif = (void *)pkt->data;
2919 
2920 		if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_WAKE_PKT) {
2921 			/* We shouldn't get two wake packet notifications */
2922 			IWL_ERR(mvm,
2923 				"Got additional wowlan wake packet notification\n");
2924 		} else {
2925 			d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT;
2926 			len =  iwl_rx_packet_payload_len(pkt);
2927 			ret = iwl_mvm_wowlan_store_wake_pkt(mvm, notif,
2928 							    d3_data->status,
2929 							    len);
2930 			if (ret)
2931 				IWL_ERR(mvm,
2932 					"Can't parse WOWLAN_WAKE_PKT_NOTIFICATION\n");
2933 		}
2934 
2935 		break;
2936 	}
2937 	case WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF): {
2938 		struct iwl_scan_offload_match_info *notif = (void *)pkt->data;
2939 
2940 		if (d3_data->notif_received & IWL_D3_ND_MATCH_INFO) {
2941 			IWL_ERR(mvm,
2942 				"Got additional netdetect match info\n");
2943 			break;
2944 		}
2945 
2946 		d3_data->notif_received |= IWL_D3_ND_MATCH_INFO;
2947 
2948 		/* explicitly set this in the 'expected' as well */
2949 		d3_data->notif_expected |= IWL_D3_ND_MATCH_INFO;
2950 
2951 		len = iwl_rx_packet_payload_len(pkt);
2952 		iwl_mvm_nd_match_info_handler(mvm, d3_data, notif, len);
2953 		break;
2954 	}
2955 	case WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION): {
2956 		struct iwl_mvm_d3_end_notif *notif = (void *)pkt->data;
2957 
2958 		d3_data->d3_end_flags = __le32_to_cpu(notif->flags);
2959 		d3_data->notif_received |= IWL_D3_NOTIF_D3_END_NOTIF;
2960 
2961 		break;
2962 	}
2963 	default:
2964 		WARN_ON(1);
2965 	}
2966 
2967 	return d3_data->notif_received == d3_data->notif_expected;
2968 }
2969 
2970 static int iwl_mvm_resume_firmware(struct iwl_mvm *mvm, bool test)
2971 {
2972 	int ret;
2973 	enum iwl_d3_status d3_status;
2974 	struct iwl_host_cmd cmd = {
2975 			.id = D0I3_END_CMD,
2976 			.flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
2977 		};
2978 	bool reset = fw_has_capa(&mvm->fw->ucode_capa,
2979 				 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
2980 
2981 	ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !reset);
2982 	if (ret)
2983 		return ret;
2984 
2985 	if (d3_status != IWL_D3_STATUS_ALIVE) {
2986 		IWL_INFO(mvm, "Device was reset during suspend\n");
2987 		return -ENOENT;
2988 	}
2989 
2990 	/*
2991 	 * We should trigger resume flow using command only for 22000 family
2992 	 * AX210 and above don't need the command since they have
2993 	 * the doorbell interrupt.
2994 	 */
2995 	if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_22000 &&
2996 	    fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_D0I3_END_FIRST)) {
2997 		ret = iwl_mvm_send_cmd(mvm, &cmd);
2998 		if (ret < 0)
2999 			IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n",
3000 				ret);
3001 	}
3002 
3003 	return ret;
3004 }
3005 
3006 #define IWL_MVM_D3_NOTIF_TIMEOUT (HZ / 5)
3007 
3008 static int iwl_mvm_d3_notif_wait(struct iwl_mvm *mvm,
3009 				 struct iwl_d3_data *d3_data)
3010 {
3011 	static const u16 d3_resume_notif[] = {
3012 		WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION),
3013 		WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION),
3014 		WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF),
3015 		WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION)
3016 	};
3017 	struct iwl_notification_wait wait_d3_notif;
3018 	int ret;
3019 
3020 	iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif,
3021 				   d3_resume_notif, ARRAY_SIZE(d3_resume_notif),
3022 				   iwl_mvm_wait_d3_notif, d3_data);
3023 
3024 	ret = iwl_mvm_resume_firmware(mvm, d3_data->test);
3025 	if (ret) {
3026 		iwl_remove_notification(&mvm->notif_wait, &wait_d3_notif);
3027 		return ret;
3028 	}
3029 
3030 	return iwl_wait_notification(&mvm->notif_wait, &wait_d3_notif,
3031 				     IWL_MVM_D3_NOTIF_TIMEOUT);
3032 }
3033 
3034 static inline bool iwl_mvm_d3_resume_notif_based(struct iwl_mvm *mvm)
3035 {
3036 	return iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3037 				       WOWLAN_INFO_NOTIFICATION, 0) &&
3038 		iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3039 					WOWLAN_WAKE_PKT_NOTIFICATION, 0) &&
3040 		iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3041 					D3_END_NOTIFICATION, 0);
3042 }
3043 
3044 static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
3045 {
3046 	struct ieee80211_vif *vif = NULL;
3047 	int ret = 1;
3048 	struct iwl_mvm_nd_results results = {};
3049 	struct iwl_d3_data d3_data = {
3050 		.test = test,
3051 		.notif_expected =
3052 			IWL_D3_NOTIF_WOWLAN_INFO |
3053 			IWL_D3_NOTIF_D3_END_NOTIF,
3054 		.nd_results_valid = false,
3055 		.nd_results = &results,
3056 	};
3057 	bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
3058 					 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
3059 	bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa,
3060 				      IWL_UCODE_TLV_CAPA_D0I3_END_FIRST);
3061 	bool resume_notif_based = iwl_mvm_d3_resume_notif_based(mvm);
3062 	bool keep = false;
3063 
3064 	mutex_lock(&mvm->mutex);
3065 
3066 	mvm->last_reset_or_resume_time_jiffies = jiffies;
3067 
3068 	/* get the BSS vif pointer again */
3069 	vif = iwl_mvm_get_bss_vif(mvm);
3070 	if (IS_ERR_OR_NULL(vif))
3071 		goto err;
3072 
3073 	iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
3074 
3075 	if (iwl_mvm_check_rt_status(mvm, vif)) {
3076 		set_bit(STATUS_FW_ERROR, &mvm->trans->status);
3077 		iwl_mvm_dump_nic_error_log(mvm);
3078 		iwl_dbg_tlv_time_point(&mvm->fwrt,
3079 				       IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL);
3080 		iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
3081 					false, 0);
3082 		ret = 1;
3083 		goto err;
3084 	}
3085 
3086 	if (resume_notif_based) {
3087 		d3_data.status = kzalloc(sizeof(*d3_data.status), GFP_KERNEL);
3088 		if (!d3_data.status) {
3089 			IWL_ERR(mvm, "Failed to allocate wowlan status\n");
3090 			ret = -ENOMEM;
3091 			goto err;
3092 		}
3093 
3094 		ret = iwl_mvm_d3_notif_wait(mvm, &d3_data);
3095 		if (ret)
3096 			goto err;
3097 	} else {
3098 		ret = iwl_mvm_resume_firmware(mvm, test);
3099 		if (ret < 0)
3100 			goto err;
3101 	}
3102 
3103 	/* after the successful handshake, we're out of D3 */
3104 	mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
3105 
3106 	/* when reset is required we can't send these following commands */
3107 	if (d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)
3108 		goto query_wakeup_reasons;
3109 
3110 	/*
3111 	 * Query the current location and source from the D3 firmware so we
3112 	 * can play it back when we re-intiailize the D0 firmware
3113 	 */
3114 	iwl_mvm_update_changed_regdom(mvm);
3115 
3116 	/* Re-configure PPAG settings */
3117 	iwl_mvm_ppag_send_cmd(mvm);
3118 
3119 	if (!unified_image)
3120 		/*  Re-configure default SAR profile */
3121 		iwl_mvm_sar_select_profile(mvm, 1, 1);
3122 
3123 	if (mvm->net_detect && unified_image) {
3124 		/* If this is a non-unified image, we restart the FW,
3125 		 * so no need to stop the netdetect scan.  If that
3126 		 * fails, continue and try to get the wake-up reasons,
3127 		 * but trigger a HW restart by keeping a failure code
3128 		 * in ret.
3129 		 */
3130 		ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT,
3131 					false);
3132 	}
3133 
3134 query_wakeup_reasons:
3135 	keep = iwl_mvm_choose_query_wakeup_reasons(mvm, vif, &d3_data);
3136 	/* has unlocked the mutex, so skip that */
3137 	goto out;
3138 
3139 err:
3140 	mutex_unlock(&mvm->mutex);
3141 out:
3142 	if (d3_data.status)
3143 		kfree(d3_data.status->wake_packet);
3144 	kfree(d3_data.status);
3145 	iwl_mvm_free_nd(mvm);
3146 
3147 	if (!d3_data.test && !mvm->net_detect)
3148 		ieee80211_iterate_active_interfaces_mtx(mvm->hw,
3149 							IEEE80211_IFACE_ITER_NORMAL,
3150 							iwl_mvm_d3_disconnect_iter,
3151 							keep ? vif : NULL);
3152 
3153 	clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
3154 
3155 	/* no need to reset the device in unified images, if successful */
3156 	if (unified_image && !ret) {
3157 		/* nothing else to do if we already sent D0I3_END_CMD */
3158 		if (d0i3_first)
3159 			return 0;
3160 
3161 		if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3162 					     D3_END_NOTIFICATION, 0)) {
3163 			ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL);
3164 			if (!ret)
3165 				return 0;
3166 		} else if (!(d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)) {
3167 			return 0;
3168 		}
3169 	}
3170 
3171 	/*
3172 	 * Reconfigure the device in one of the following cases:
3173 	 * 1. We are not using a unified image
3174 	 * 2. We are using a unified image but had an error while exiting D3
3175 	 */
3176 	set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
3177 
3178 	/* regardless of what happened, we're now out of D3 */
3179 	mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
3180 
3181 	return 1;
3182 }
3183 
3184 int iwl_mvm_resume(struct ieee80211_hw *hw)
3185 {
3186 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3187 	int ret;
3188 
3189 	ret = __iwl_mvm_resume(mvm, false);
3190 
3191 	iwl_mvm_resume_tcm(mvm);
3192 
3193 	iwl_fw_runtime_resume(&mvm->fwrt);
3194 
3195 	return ret;
3196 }
3197 
3198 void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
3199 {
3200 	struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3201 
3202 	device_set_wakeup_enable(mvm->trans->dev, enabled);
3203 }
3204 
3205 #ifdef CONFIG_IWLWIFI_DEBUGFS
3206 static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
3207 {
3208 	struct iwl_mvm *mvm = inode->i_private;
3209 	int err;
3210 
3211 	if (mvm->d3_test_active)
3212 		return -EBUSY;
3213 
3214 	file->private_data = inode->i_private;
3215 
3216 	iwl_mvm_pause_tcm(mvm, true);
3217 
3218 	iwl_fw_runtime_suspend(&mvm->fwrt);
3219 
3220 	/* start pseudo D3 */
3221 	rtnl_lock();
3222 	wiphy_lock(mvm->hw->wiphy);
3223 	err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
3224 	wiphy_unlock(mvm->hw->wiphy);
3225 	rtnl_unlock();
3226 	if (err > 0)
3227 		err = -EINVAL;
3228 	if (err)
3229 		return err;
3230 
3231 	mvm->d3_test_active = true;
3232 	mvm->keep_vif = NULL;
3233 	return 0;
3234 }
3235 
3236 static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
3237 				    size_t count, loff_t *ppos)
3238 {
3239 	struct iwl_mvm *mvm = file->private_data;
3240 	u32 pme_asserted;
3241 
3242 	while (true) {
3243 		/* read pme_ptr if available */
3244 		if (mvm->d3_test_pme_ptr) {
3245 			pme_asserted = iwl_trans_read_mem32(mvm->trans,
3246 						mvm->d3_test_pme_ptr);
3247 			if (pme_asserted)
3248 				break;
3249 		}
3250 
3251 		if (msleep_interruptible(100))
3252 			break;
3253 	}
3254 
3255 	return 0;
3256 }
3257 
3258 static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
3259 					      struct ieee80211_vif *vif)
3260 {
3261 	/* skip the one we keep connection on */
3262 	if (_data == vif)
3263 		return;
3264 
3265 	if (vif->type == NL80211_IFTYPE_STATION)
3266 		ieee80211_connection_loss(vif);
3267 }
3268 
3269 static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
3270 {
3271 	struct iwl_mvm *mvm = inode->i_private;
3272 	bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
3273 					 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
3274 
3275 	mvm->d3_test_active = false;
3276 
3277 	iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
3278 
3279 	rtnl_lock();
3280 	wiphy_lock(mvm->hw->wiphy);
3281 	__iwl_mvm_resume(mvm, true);
3282 	wiphy_unlock(mvm->hw->wiphy);
3283 	rtnl_unlock();
3284 
3285 	iwl_mvm_resume_tcm(mvm);
3286 
3287 	iwl_fw_runtime_resume(&mvm->fwrt);
3288 
3289 	iwl_abort_notification_waits(&mvm->notif_wait);
3290 	if (!unified_image) {
3291 		int remaining_time = 10;
3292 
3293 		ieee80211_restart_hw(mvm->hw);
3294 
3295 		/* wait for restart and disconnect all interfaces */
3296 		while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
3297 		       remaining_time > 0) {
3298 			remaining_time--;
3299 			msleep(1000);
3300 		}
3301 
3302 		if (remaining_time == 0)
3303 			IWL_ERR(mvm, "Timed out waiting for HW restart!\n");
3304 	}
3305 
3306 	ieee80211_iterate_active_interfaces_atomic(
3307 		mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
3308 		iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif);
3309 
3310 	return 0;
3311 }
3312 
3313 const struct file_operations iwl_dbgfs_d3_test_ops = {
3314 	.llseek = no_llseek,
3315 	.open = iwl_mvm_d3_test_open,
3316 	.read = iwl_mvm_d3_test_read,
3317 	.release = iwl_mvm_d3_test_release,
3318 };
3319 #endif
3320