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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
19void 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((__be64 *)data->replay_ctr));
35 mvmvif->rekey_data.valid = true;
36
37 mutex_unlock(&mvm->mutex);
38}
39
40#if IS_ENABLED(CONFIG_IPV6)
41void 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
66void 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
74static 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
82static 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
91 ieee80211_get_key_rx_seq(key, tid, seq);
92
93
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
104struct wowlan_key_reprogram_data {
105 bool error;
106 int wep_key_idx;
107};
108
109static 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: {
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
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
139
140
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
148 wkc.wep_key.key_offset = 0;
149 } else {
150
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
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
177
178
179
180
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
193
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
202
203
204
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
214struct wowlan_key_rsc_tsc_data {
215 struct iwl_wowlan_rsc_tsc_params_cmd_v4 *rsc_tsc;
216 bool have_rsc_tsc;
217};
218
219static 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
254
255
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
286
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
331struct 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
338static 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
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
390
391
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
407
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
452static 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, LONG_GROUP,
457 WOWLAN_TSC_RSC_PARAM,
458 IWL_FW_CMD_VER_UNKNOWN);
459 int ret;
460
461 if (ver == 5) {
462 struct wowlan_key_rsc_v5_data data = {};
463 int i;
464
465 data.rsc = kmalloc(sizeof(*data.rsc), GFP_KERNEL);
466 if (!data.rsc)
467 return -ENOMEM;
468
469 memset(data.rsc, 0xff, sizeof(*data.rsc));
470
471 for (i = 0; i < ARRAY_SIZE(data.rsc->mcast_key_id_map); i++)
472 data.rsc->mcast_key_id_map[i] =
473 IWL_MCAST_KEY_MAP_INVALID;
474 data.rsc->sta_id = cpu_to_le32(mvmvif->ap_sta_id);
475
476 ieee80211_iter_keys(mvm->hw, vif,
477 iwl_mvm_wowlan_get_rsc_v5_data,
478 &data);
479
480 if (data.have_rsc)
481 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM,
482 CMD_ASYNC, sizeof(*data.rsc),
483 data.rsc);
484 else
485 ret = 0;
486 kfree(data.rsc);
487 } else if (ver == 4 || ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN) {
488 struct wowlan_key_rsc_tsc_data data = {};
489 int size;
490
491 data.rsc_tsc = kzalloc(sizeof(*data.rsc_tsc), GFP_KERNEL);
492 if (!data.rsc_tsc)
493 return -ENOMEM;
494
495 if (ver == 4) {
496 size = sizeof(*data.rsc_tsc);
497 data.rsc_tsc->sta_id = cpu_to_le32(mvmvif->ap_sta_id);
498 } else {
499
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
522struct wowlan_key_tkip_data {
523 struct iwl_wowlan_tkip_params_cmd tkip;
524 bool have_tkip_keys;
525};
526
527static 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
568 if (seq.tkip.iv32 > cur_rx_iv32)
569 cur_rx_iv32 = seq.tkip.iv32;
570 }
571
572 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
573 cur_rx_iv32, p1k);
574 iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k);
575 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
576 cur_rx_iv32 + 1, p1k);
577 iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k);
578
579 memcpy(rx_mic_key,
580 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
581 IWL_MIC_KEY_SIZE);
582
583 data->have_tkip_keys = true;
584 break;
585 }
586}
587
588struct wowlan_key_gtk_type_iter {
589 struct iwl_wowlan_kek_kck_material_cmd_v4 *kek_kck_cmd;
590};
591
592static void iwl_mvm_wowlan_gtk_type_iter(struct ieee80211_hw *hw,
593 struct ieee80211_vif *vif,
594 struct ieee80211_sta *sta,
595 struct ieee80211_key_conf *key,
596 void *_data)
597{
598 struct wowlan_key_gtk_type_iter *data = _data;
599
600 switch (key->cipher) {
601 default:
602 return;
603 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
604 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
605 data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_GCMP);
606 return;
607 case WLAN_CIPHER_SUITE_AES_CMAC:
608 data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_CCM);
609 return;
610 case WLAN_CIPHER_SUITE_CCMP:
611 if (!sta)
612 data->kek_kck_cmd->gtk_cipher =
613 cpu_to_le32(STA_KEY_FLG_CCM);
614 break;
615 case WLAN_CIPHER_SUITE_GCMP:
616 case WLAN_CIPHER_SUITE_GCMP_256:
617 if (!sta)
618 data->kek_kck_cmd->gtk_cipher =
619 cpu_to_le32(STA_KEY_FLG_GCMP);
620 break;
621 }
622}
623
624static int iwl_mvm_send_patterns_v1(struct iwl_mvm *mvm,
625 struct cfg80211_wowlan *wowlan)
626{
627 struct iwl_wowlan_patterns_cmd_v1 *pattern_cmd;
628 struct iwl_host_cmd cmd = {
629 .id = WOWLAN_PATTERNS,
630 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
631 };
632 int i, err;
633
634 if (!wowlan->n_patterns)
635 return 0;
636
637 cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns);
638
639 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
640 if (!pattern_cmd)
641 return -ENOMEM;
642
643 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
644
645 for (i = 0; i < wowlan->n_patterns; i++) {
646 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
647
648 memcpy(&pattern_cmd->patterns[i].mask,
649 wowlan->patterns[i].mask, mask_len);
650 memcpy(&pattern_cmd->patterns[i].pattern,
651 wowlan->patterns[i].pattern,
652 wowlan->patterns[i].pattern_len);
653 pattern_cmd->patterns[i].mask_size = mask_len;
654 pattern_cmd->patterns[i].pattern_size =
655 wowlan->patterns[i].pattern_len;
656 }
657
658 cmd.data[0] = pattern_cmd;
659 err = iwl_mvm_send_cmd(mvm, &cmd);
660 kfree(pattern_cmd);
661 return err;
662}
663
664static int iwl_mvm_send_patterns(struct iwl_mvm *mvm,
665 struct ieee80211_vif *vif,
666 struct cfg80211_wowlan *wowlan)
667{
668 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
669 struct iwl_wowlan_patterns_cmd *pattern_cmd;
670 struct iwl_host_cmd cmd = {
671 .id = WOWLAN_PATTERNS,
672 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
673 };
674 int i, err;
675 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
676 WOWLAN_PATTERNS,
677 IWL_FW_CMD_VER_UNKNOWN);
678
679 if (!wowlan->n_patterns)
680 return 0;
681
682 cmd.len[0] = sizeof(*pattern_cmd) +
683 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern_v2);
684
685 pattern_cmd = kzalloc(cmd.len[0], GFP_KERNEL);
686 if (!pattern_cmd)
687 return -ENOMEM;
688
689 pattern_cmd->n_patterns = wowlan->n_patterns;
690 if (ver >= 3)
691 pattern_cmd->sta_id = mvmvif->ap_sta_id;
692
693 for (i = 0; i < wowlan->n_patterns; i++) {
694 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
695
696 pattern_cmd->patterns[i].pattern_type =
697 WOWLAN_PATTERN_TYPE_BITMASK;
698
699 memcpy(&pattern_cmd->patterns[i].u.bitmask.mask,
700 wowlan->patterns[i].mask, mask_len);
701 memcpy(&pattern_cmd->patterns[i].u.bitmask.pattern,
702 wowlan->patterns[i].pattern,
703 wowlan->patterns[i].pattern_len);
704 pattern_cmd->patterns[i].u.bitmask.mask_size = mask_len;
705 pattern_cmd->patterns[i].u.bitmask.pattern_size =
706 wowlan->patterns[i].pattern_len;
707 }
708
709 cmd.data[0] = pattern_cmd;
710 err = iwl_mvm_send_cmd(mvm, &cmd);
711 kfree(pattern_cmd);
712 return err;
713}
714
715static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
716 struct ieee80211_sta *ap_sta)
717{
718 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
719 struct ieee80211_chanctx_conf *ctx;
720 u8 chains_static, chains_dynamic;
721 struct cfg80211_chan_def chandef;
722 int ret, i;
723 struct iwl_binding_cmd_v1 binding_cmd = {};
724 struct iwl_time_quota_cmd quota_cmd = {};
725 struct iwl_time_quota_data *quota;
726 u32 status;
727
728 if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm)))
729 return -EINVAL;
730
731
732 if (WARN_ON(!mvmvif->phy_ctxt))
733 return -EINVAL;
734
735 rcu_read_lock();
736 ctx = rcu_dereference(vif->chanctx_conf);
737 if (WARN_ON(!ctx)) {
738 rcu_read_unlock();
739 return -EINVAL;
740 }
741 chandef = ctx->def;
742 chains_static = ctx->rx_chains_static;
743 chains_dynamic = ctx->rx_chains_dynamic;
744 rcu_read_unlock();
745
746 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef,
747 chains_static, chains_dynamic);
748 if (ret)
749 return ret;
750
751
752 mvmvif->uploaded = false;
753
754 if (WARN_ON(!vif->bss_conf.assoc))
755 return -EINVAL;
756
757 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
758 if (ret)
759 return ret;
760
761
762 binding_cmd.id_and_color =
763 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
764 mvmvif->phy_ctxt->color));
765 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
766 binding_cmd.phy =
767 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
768 mvmvif->phy_ctxt->color));
769 binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
770 mvmvif->color));
771 for (i = 1; i < MAX_MACS_IN_BINDING; i++)
772 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
773
774 status = 0;
775 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
776 IWL_BINDING_CMD_SIZE_V1, &binding_cmd,
777 &status);
778 if (ret) {
779 IWL_ERR(mvm, "Failed to add binding: %d\n", ret);
780 return ret;
781 }
782
783 if (status) {
784 IWL_ERR(mvm, "Binding command failed: %u\n", status);
785 return -EIO;
786 }
787
788 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0);
789 if (ret)
790 return ret;
791 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta);
792
793 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
794 if (ret)
795 return ret;
796
797
798 quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, 0);
799 quota->id_and_color =
800 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
801 mvmvif->phy_ctxt->color));
802 quota->quota = cpu_to_le32(IWL_MVM_MAX_QUOTA);
803 quota->max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA);
804
805 for (i = 1; i < MAX_BINDINGS; i++) {
806 quota = iwl_mvm_quota_cmd_get_quota(mvm, "a_cmd, i);
807 quota->id_and_color = cpu_to_le32(FW_CTXT_INVALID);
808 }
809
810 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0,
811 iwl_mvm_quota_cmd_size(mvm), "a_cmd);
812 if (ret)
813 IWL_ERR(mvm, "Failed to send quota: %d\n", ret);
814
815 if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm))
816 IWL_ERR(mvm, "Failed to initialize D3 LAR information\n");
817
818 return 0;
819}
820
821static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
822 struct ieee80211_vif *vif)
823{
824 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
825 struct iwl_nonqos_seq_query_cmd query_cmd = {
826 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET),
827 .mac_id_n_color =
828 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
829 mvmvif->color)),
830 };
831 struct iwl_host_cmd cmd = {
832 .id = NON_QOS_TX_COUNTER_CMD,
833 .flags = CMD_WANT_SKB,
834 };
835 int err;
836 u32 size;
837
838 cmd.data[0] = &query_cmd;
839 cmd.len[0] = sizeof(query_cmd);
840
841 err = iwl_mvm_send_cmd(mvm, &cmd);
842 if (err)
843 return err;
844
845 size = iwl_rx_packet_payload_len(cmd.resp_pkt);
846 if (size < sizeof(__le16)) {
847 err = -EINVAL;
848 } else {
849 err = le16_to_cpup((__le16 *)cmd.resp_pkt->data);
850
851 err = (u16) (err - 0x10);
852 }
853
854 iwl_free_resp(&cmd);
855 return err;
856}
857
858void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
859{
860 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
861 struct iwl_nonqos_seq_query_cmd query_cmd = {
862 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET),
863 .mac_id_n_color =
864 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
865 mvmvif->color)),
866 .value = cpu_to_le16(mvmvif->seqno),
867 };
868
869
870 if (!mvmvif->seqno_valid)
871 return;
872
873 mvmvif->seqno_valid = false;
874
875 if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0,
876 sizeof(query_cmd), &query_cmd))
877 IWL_ERR(mvm, "failed to set non-QoS seqno\n");
878}
879
880static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm)
881{
882 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
883
884 iwl_mvm_stop_device(mvm);
885
886
887
888
889
890
891
892
893
894
895 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
896
897
898 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
899
900 mvm->ptk_ivlen = 0;
901 mvm->ptk_icvlen = 0;
902 mvm->ptk_ivlen = 0;
903 mvm->ptk_icvlen = 0;
904
905 return iwl_mvm_load_d3_fw(mvm);
906}
907
908static int
909iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
910 struct cfg80211_wowlan *wowlan,
911 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
912 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
913 struct ieee80211_sta *ap_sta)
914{
915 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
916
917
918
919 wowlan_config_cmd->is_11n_connection =
920 ap_sta->ht_cap.ht_supported;
921 wowlan_config_cmd->flags = ENABLE_L3_FILTERING |
922 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING;
923
924 if (iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
925 WOWLAN_CONFIGURATION, 0) < 6) {
926
927 int ret = iwl_mvm_get_last_nonqos_seq(mvm, vif);
928
929 if (ret < 0)
930 return ret;
931
932 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret);
933 }
934
935 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd);
936
937 if (wowlan->disconnect)
938 wowlan_config_cmd->wakeup_filter |=
939 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
940 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
941 if (wowlan->magic_pkt)
942 wowlan_config_cmd->wakeup_filter |=
943 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
944 if (wowlan->gtk_rekey_failure)
945 wowlan_config_cmd->wakeup_filter |=
946 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
947 if (wowlan->eap_identity_req)
948 wowlan_config_cmd->wakeup_filter |=
949 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
950 if (wowlan->four_way_handshake)
951 wowlan_config_cmd->wakeup_filter |=
952 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
953 if (wowlan->n_patterns)
954 wowlan_config_cmd->wakeup_filter |=
955 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
956
957 if (wowlan->rfkill_release)
958 wowlan_config_cmd->wakeup_filter |=
959 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
960
961 if (wowlan->tcp) {
962
963
964
965
966 wowlan_config_cmd->wakeup_filter |=
967 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS |
968 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE |
969 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET |
970 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
971 }
972
973 if (wowlan->any) {
974 wowlan_config_cmd->wakeup_filter |=
975 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
976 IWL_WOWLAN_WAKEUP_LINK_CHANGE |
977 IWL_WOWLAN_WAKEUP_RX_FRAME |
978 IWL_WOWLAN_WAKEUP_BCN_FILTERING);
979 }
980
981 return 0;
982}
983
984static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
985 struct ieee80211_vif *vif)
986{
987 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
988 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
989 struct wowlan_key_reprogram_data key_data = {};
990 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
991 int ret;
992 u8 cmd_ver;
993 size_t cmd_size;
994
995 if (!unified) {
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_program_keys,
1008 &key_data);
1009
1010 if (key_data.error)
1011 return -EIO;
1012 }
1013
1014 ret = iwl_mvm_wowlan_config_rsc_tsc(mvm, vif);
1015 if (ret)
1016 return ret;
1017
1018 if (!fw_has_api(&mvm->fw->ucode_capa,
1019 IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) {
1020 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
1021 WOWLAN_TKIP_PARAM,
1022 IWL_FW_CMD_VER_UNKNOWN);
1023 struct wowlan_key_tkip_data tkip_data = {};
1024 int size;
1025
1026 if (ver == 2) {
1027 size = sizeof(tkip_data.tkip);
1028 tkip_data.tkip.sta_id =
1029 cpu_to_le32(mvmvif->ap_sta_id);
1030 } else if (ver == 1 || ver == IWL_FW_CMD_VER_UNKNOWN) {
1031 size = sizeof(struct iwl_wowlan_tkip_params_cmd_ver_1);
1032 } else {
1033 WARN_ON_ONCE(1);
1034 return -EINVAL;
1035 }
1036
1037 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_get_tkip_data,
1038 &tkip_data);
1039
1040 if (tkip_data.have_tkip_keys) {
1041
1042 ret = iwl_mvm_send_cmd_pdu(mvm,
1043 WOWLAN_TKIP_PARAM,
1044 CMD_ASYNC, size,
1045 &tkip_data.tkip);
1046 if (ret)
1047 return ret;
1048 }
1049 }
1050
1051
1052 if (mvmvif->rekey_data.valid) {
1053 struct iwl_wowlan_kek_kck_material_cmd_v4 kek_kck_cmd = {};
1054 struct iwl_wowlan_kek_kck_material_cmd_v4 *_kek_kck_cmd =
1055 &kek_kck_cmd;
1056 struct wowlan_key_gtk_type_iter gtk_type_data = {
1057 .kek_kck_cmd = _kek_kck_cmd,
1058 };
1059
1060 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
1061 IWL_ALWAYS_LONG_GROUP,
1062 WOWLAN_KEK_KCK_MATERIAL,
1063 IWL_FW_CMD_VER_UNKNOWN);
1064 if (WARN_ON(cmd_ver != 2 && cmd_ver != 3 && cmd_ver != 4 &&
1065 cmd_ver != IWL_FW_CMD_VER_UNKNOWN))
1066 return -EINVAL;
1067
1068 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_gtk_type_iter,
1069 >k_type_data);
1070
1071 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
1072 mvmvif->rekey_data.kck_len);
1073 kek_kck_cmd.kck_len = cpu_to_le16(mvmvif->rekey_data.kck_len);
1074 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
1075 mvmvif->rekey_data.kek_len);
1076 kek_kck_cmd.kek_len = cpu_to_le16(mvmvif->rekey_data.kek_len);
1077 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
1078 kek_kck_cmd.akm = cpu_to_le32(mvmvif->rekey_data.akm);
1079 kek_kck_cmd.sta_id = cpu_to_le32(mvmvif->ap_sta_id);
1080
1081 if (cmd_ver == 4) {
1082 cmd_size = sizeof(struct iwl_wowlan_kek_kck_material_cmd_v4);
1083 } else {
1084 if (cmd_ver == 3)
1085 cmd_size =
1086 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v3);
1087 else
1088 cmd_size =
1089 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v2);
1090
1091 _kek_kck_cmd = (void *)
1092 ((u8 *)_kek_kck_cmd) + sizeof(kek_kck_cmd.sta_id);
1093 }
1094
1095 IWL_DEBUG_WOWLAN(mvm, "setting akm %d\n",
1096 mvmvif->rekey_data.akm);
1097
1098 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_KEK_KCK_MATERIAL,
1099 CMD_ASYNC, cmd_size, _kek_kck_cmd);
1100 if (ret)
1101 return ret;
1102 }
1103
1104 return 0;
1105}
1106
1107static int
1108iwl_mvm_wowlan_config(struct iwl_mvm *mvm,
1109 struct cfg80211_wowlan *wowlan,
1110 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
1111 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
1112 struct ieee80211_sta *ap_sta)
1113{
1114 int ret;
1115 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1116 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1117
1118 mvm->offload_tid = wowlan_config_cmd->offloading_tid;
1119
1120 if (!unified_image) {
1121 ret = iwl_mvm_switch_to_d3(mvm);
1122 if (ret)
1123 return ret;
1124
1125 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
1126 if (ret)
1127 return ret;
1128 }
1129
1130
1131
1132
1133
1134
1135 mutex_unlock(&mvm->mutex);
1136 ret = iwl_mvm_wowlan_config_key_params(mvm, vif);
1137 mutex_lock(&mvm->mutex);
1138 if (ret)
1139 return ret;
1140
1141 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
1142 sizeof(*wowlan_config_cmd),
1143 wowlan_config_cmd);
1144 if (ret)
1145 return ret;
1146
1147 if (fw_has_api(&mvm->fw->ucode_capa,
1148 IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE))
1149 ret = iwl_mvm_send_patterns(mvm, vif, wowlan);
1150 else
1151 ret = iwl_mvm_send_patterns_v1(mvm, wowlan);
1152 if (ret)
1153 return ret;
1154
1155 return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0);
1156}
1157
1158static int
1159iwl_mvm_netdetect_config(struct iwl_mvm *mvm,
1160 struct cfg80211_wowlan *wowlan,
1161 struct cfg80211_sched_scan_request *nd_config,
1162 struct ieee80211_vif *vif)
1163{
1164 int ret;
1165 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1166 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1167
1168 if (!unified_image) {
1169 ret = iwl_mvm_switch_to_d3(mvm);
1170 if (ret)
1171 return ret;
1172 } else {
1173
1174
1175
1176
1177
1178 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
1179 if (ret)
1180 return ret;
1181 }
1182
1183 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies,
1184 IWL_MVM_SCAN_NETDETECT);
1185 if (ret)
1186 return ret;
1187
1188 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels))
1189 return -EBUSY;
1190
1191
1192 if (nd_config->n_match_sets) {
1193 mvm->nd_match_sets = kmemdup(nd_config->match_sets,
1194 sizeof(*nd_config->match_sets) *
1195 nd_config->n_match_sets,
1196 GFP_KERNEL);
1197 if (mvm->nd_match_sets)
1198 mvm->n_nd_match_sets = nd_config->n_match_sets;
1199 }
1200
1201
1202 mvm->nd_channels = kmemdup(nd_config->channels,
1203 sizeof(*nd_config->channels) *
1204 nd_config->n_channels,
1205 GFP_KERNEL);
1206 if (mvm->nd_channels)
1207 mvm->n_nd_channels = nd_config->n_channels;
1208
1209 return 0;
1210}
1211
1212static void iwl_mvm_free_nd(struct iwl_mvm *mvm)
1213{
1214 kfree(mvm->nd_match_sets);
1215 mvm->nd_match_sets = NULL;
1216 mvm->n_nd_match_sets = 0;
1217 kfree(mvm->nd_channels);
1218 mvm->nd_channels = NULL;
1219 mvm->n_nd_channels = 0;
1220}
1221
1222static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
1223 struct cfg80211_wowlan *wowlan,
1224 bool test)
1225{
1226 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1227 struct ieee80211_vif *vif = NULL;
1228 struct iwl_mvm_vif *mvmvif = NULL;
1229 struct ieee80211_sta *ap_sta = NULL;
1230 struct iwl_d3_manager_config d3_cfg_cmd_data = {
1231
1232
1233
1234
1235
1236 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
1237 };
1238 struct iwl_host_cmd d3_cfg_cmd = {
1239 .id = D3_CONFIG_CMD,
1240 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
1241 .data[0] = &d3_cfg_cmd_data,
1242 .len[0] = sizeof(d3_cfg_cmd_data),
1243 };
1244 int ret;
1245 int len __maybe_unused;
1246 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1247 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
1248
1249 if (!wowlan) {
1250
1251
1252
1253
1254 WARN_ON(!test);
1255 return -EINVAL;
1256 }
1257
1258 mutex_lock(&mvm->mutex);
1259
1260 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1261
1262 synchronize_net();
1263
1264 vif = iwl_mvm_get_bss_vif(mvm);
1265 if (IS_ERR_OR_NULL(vif)) {
1266 ret = 1;
1267 goto out_noreset;
1268 }
1269
1270 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1271
1272 if (mvmvif->ap_sta_id == IWL_MVM_INVALID_STA) {
1273
1274 if (!wowlan->nd_config) {
1275 ret = 1;
1276 goto out_noreset;
1277 }
1278
1279 ret = iwl_mvm_netdetect_config(
1280 mvm, wowlan, wowlan->nd_config, vif);
1281 if (ret)
1282 goto out;
1283
1284 mvm->net_detect = true;
1285 } else {
1286 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
1287
1288 wowlan_config_cmd.sta_id = mvmvif->ap_sta_id;
1289
1290 ap_sta = rcu_dereference_protected(
1291 mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1292 lockdep_is_held(&mvm->mutex));
1293 if (IS_ERR_OR_NULL(ap_sta)) {
1294 ret = -EINVAL;
1295 goto out_noreset;
1296 }
1297
1298 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1299 vif, mvmvif, ap_sta);
1300 if (ret)
1301 goto out_noreset;
1302 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1303 vif, mvmvif, ap_sta);
1304 if (ret)
1305 goto out;
1306
1307 mvm->net_detect = false;
1308 }
1309
1310 ret = iwl_mvm_power_update_device(mvm);
1311 if (ret)
1312 goto out;
1313
1314 ret = iwl_mvm_power_update_mac(mvm);
1315 if (ret)
1316 goto out;
1317
1318#ifdef CONFIG_IWLWIFI_DEBUGFS
1319 if (mvm->d3_wake_sysassert)
1320 d3_cfg_cmd_data.wakeup_flags |=
1321 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR);
1322#endif
1323
1324
1325
1326
1327
1328
1329 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000)
1330 iwl_fw_dbg_stop_restart_recording(&mvm->fwrt, NULL, true);
1331
1332 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
1333
1334
1335 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
1336 if (ret)
1337 goto out;
1338#ifdef CONFIG_IWLWIFI_DEBUGFS
1339 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt);
1340 if (len >= sizeof(u32)) {
1341 mvm->d3_test_pme_ptr =
1342 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
1343 }
1344#endif
1345 iwl_free_resp(&d3_cfg_cmd);
1346
1347 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1348
1349 ret = iwl_trans_d3_suspend(mvm->trans, test, !unified_image);
1350 out:
1351 if (ret < 0) {
1352 iwl_mvm_free_nd(mvm);
1353
1354 if (!unified_image) {
1355 if (mvm->fw_restart > 0) {
1356 mvm->fw_restart--;
1357 ieee80211_restart_hw(mvm->hw);
1358 }
1359 }
1360
1361 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1362 }
1363 out_noreset:
1364 mutex_unlock(&mvm->mutex);
1365
1366 return ret;
1367}
1368
1369int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
1370{
1371 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1372
1373 iwl_mvm_pause_tcm(mvm, true);
1374
1375 iwl_fw_runtime_suspend(&mvm->fwrt);
1376
1377 return __iwl_mvm_suspend(hw, wowlan, false);
1378}
1379
1380
1381struct iwl_wowlan_status_data {
1382 u16 pattern_number;
1383 u16 qos_seq_ctr[8];
1384 u32 wakeup_reasons;
1385 u32 wake_packet_length;
1386 u32 wake_packet_bufsize;
1387 const u8 *wake_packet;
1388};
1389
1390static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
1391 struct ieee80211_vif *vif,
1392 struct iwl_wowlan_status_data *status)
1393{
1394 struct sk_buff *pkt = NULL;
1395 struct cfg80211_wowlan_wakeup wakeup = {
1396 .pattern_idx = -1,
1397 };
1398 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1399 u32 reasons = status->wakeup_reasons;
1400
1401 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1402 wakeup_report = NULL;
1403 goto report;
1404 }
1405
1406 pm_wakeup_event(mvm->dev, 0);
1407
1408 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
1409 wakeup.magic_pkt = true;
1410
1411 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
1412 wakeup.pattern_idx =
1413 status->pattern_number;
1414
1415 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1416 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH))
1417 wakeup.disconnect = true;
1418
1419 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
1420 wakeup.gtk_rekey_failure = true;
1421
1422 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1423 wakeup.rfkill_release = true;
1424
1425 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
1426 wakeup.eap_identity_req = true;
1427
1428 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
1429 wakeup.four_way_handshake = true;
1430
1431 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1432 wakeup.tcp_connlost = true;
1433
1434 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1435 wakeup.tcp_nomoretokens = true;
1436
1437 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1438 wakeup.tcp_match = true;
1439
1440 if (status->wake_packet_bufsize) {
1441 int pktsize = status->wake_packet_bufsize;
1442 int pktlen = status->wake_packet_length;
1443 const u8 *pktdata = status->wake_packet;
1444 struct ieee80211_hdr *hdr = (void *)pktdata;
1445 int truncated = pktlen - pktsize;
1446
1447
1448 if (WARN_ON_ONCE(truncated < 0))
1449 truncated = 0;
1450
1451 if (ieee80211_is_data(hdr->frame_control)) {
1452 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1453 int ivlen = 0, icvlen = 4;
1454
1455 pkt = alloc_skb(pktsize, GFP_KERNEL);
1456 if (!pkt)
1457 goto report;
1458
1459 skb_put_data(pkt, pktdata, hdrlen);
1460 pktdata += hdrlen;
1461 pktsize -= hdrlen;
1462
1463 if (ieee80211_has_protected(hdr->frame_control)) {
1464
1465
1466
1467
1468
1469
1470 if (is_multicast_ether_addr(hdr->addr1)) {
1471 ivlen = mvm->gtk_ivlen;
1472 icvlen += mvm->gtk_icvlen;
1473 } else {
1474 ivlen = mvm->ptk_ivlen;
1475 icvlen += mvm->ptk_icvlen;
1476 }
1477 }
1478
1479
1480 if (truncated >= icvlen) {
1481 icvlen = 0;
1482 truncated -= icvlen;
1483 } else {
1484 icvlen -= truncated;
1485 truncated = 0;
1486 }
1487
1488 pktsize -= ivlen + icvlen;
1489 pktdata += ivlen;
1490
1491 skb_put_data(pkt, pktdata, pktsize);
1492
1493 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1494 goto report;
1495 wakeup.packet = pkt->data;
1496 wakeup.packet_present_len = pkt->len;
1497 wakeup.packet_len = pkt->len - truncated;
1498 wakeup.packet_80211 = false;
1499 } else {
1500 int fcslen = 4;
1501
1502 if (truncated >= 4) {
1503 truncated -= 4;
1504 fcslen = 0;
1505 } else {
1506 fcslen -= truncated;
1507 truncated = 0;
1508 }
1509 pktsize -= fcslen;
1510 wakeup.packet = status->wake_packet;
1511 wakeup.packet_present_len = pktsize;
1512 wakeup.packet_len = pktlen - truncated;
1513 wakeup.packet_80211 = true;
1514 }
1515 }
1516
1517 report:
1518 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1519 kfree_skb(pkt);
1520}
1521
1522static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
1523 struct ieee80211_key_seq *seq)
1524{
1525 u64 pn;
1526
1527 pn = le64_to_cpu(sc->pn);
1528 seq->ccmp.pn[0] = pn >> 40;
1529 seq->ccmp.pn[1] = pn >> 32;
1530 seq->ccmp.pn[2] = pn >> 24;
1531 seq->ccmp.pn[3] = pn >> 16;
1532 seq->ccmp.pn[4] = pn >> 8;
1533 seq->ccmp.pn[5] = pn;
1534}
1535
1536static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
1537 struct ieee80211_key_seq *seq)
1538{
1539 seq->tkip.iv32 = le32_to_cpu(sc->iv32);
1540 seq->tkip.iv16 = le16_to_cpu(sc->iv16);
1541}
1542
1543static void iwl_mvm_set_aes_rx_seq(struct iwl_mvm *mvm, struct aes_sc *scs,
1544 struct ieee80211_sta *sta,
1545 struct ieee80211_key_conf *key)
1546{
1547 int tid;
1548
1549 BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS);
1550
1551 if (sta && iwl_mvm_has_new_rx_api(mvm)) {
1552 struct iwl_mvm_sta *mvmsta;
1553 struct iwl_mvm_key_pn *ptk_pn;
1554
1555 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1556
1557 rcu_read_lock();
1558 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
1559 if (WARN_ON(!ptk_pn)) {
1560 rcu_read_unlock();
1561 return;
1562 }
1563
1564 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1565 struct ieee80211_key_seq seq = {};
1566 int i;
1567
1568 iwl_mvm_aes_sc_to_seq(&scs[tid], &seq);
1569 ieee80211_set_key_rx_seq(key, tid, &seq);
1570 for (i = 1; i < mvm->trans->num_rx_queues; i++)
1571 memcpy(ptk_pn->q[i].pn[tid],
1572 seq.ccmp.pn, IEEE80211_CCMP_PN_LEN);
1573 }
1574 rcu_read_unlock();
1575 } else {
1576 for (tid = 0; tid < IWL_NUM_RSC; tid++) {
1577 struct ieee80211_key_seq seq = {};
1578
1579 iwl_mvm_aes_sc_to_seq(&scs[tid], &seq);
1580 ieee80211_set_key_rx_seq(key, tid, &seq);
1581 }
1582 }
1583}
1584
1585static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc *scs,
1586 struct ieee80211_key_conf *key)
1587{
1588 int tid;
1589
1590 BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS);
1591
1592 for (tid = 0; tid < IWL_NUM_RSC; tid++) {
1593 struct ieee80211_key_seq seq = {};
1594
1595 iwl_mvm_tkip_sc_to_seq(&scs[tid], &seq);
1596 ieee80211_set_key_rx_seq(key, tid, &seq);
1597 }
1598}
1599
1600static void iwl_mvm_set_key_rx_seq(struct iwl_mvm *mvm,
1601 struct ieee80211_key_conf *key,
1602 struct iwl_wowlan_status *status)
1603{
1604 union iwl_all_tsc_rsc *rsc = &status->gtk[0].rsc.all_tsc_rsc;
1605
1606 switch (key->cipher) {
1607 case WLAN_CIPHER_SUITE_CCMP:
1608 case WLAN_CIPHER_SUITE_GCMP:
1609 case WLAN_CIPHER_SUITE_GCMP_256:
1610 iwl_mvm_set_aes_rx_seq(mvm, rsc->aes.multicast_rsc, NULL, key);
1611 break;
1612 case WLAN_CIPHER_SUITE_TKIP:
1613 iwl_mvm_set_tkip_rx_seq(rsc->tkip.multicast_rsc, key);
1614 break;
1615 default:
1616 WARN_ON(1);
1617 }
1618}
1619
1620struct iwl_mvm_d3_gtk_iter_data {
1621 struct iwl_mvm *mvm;
1622 struct iwl_wowlan_status *status;
1623 void *last_gtk;
1624 u32 cipher;
1625 bool find_phase, unhandled_cipher;
1626 int num_keys;
1627};
1628
1629static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
1630 struct ieee80211_vif *vif,
1631 struct ieee80211_sta *sta,
1632 struct ieee80211_key_conf *key,
1633 void *_data)
1634{
1635 struct iwl_mvm_d3_gtk_iter_data *data = _data;
1636
1637 if (data->unhandled_cipher)
1638 return;
1639
1640 switch (key->cipher) {
1641 case WLAN_CIPHER_SUITE_WEP40:
1642 case WLAN_CIPHER_SUITE_WEP104:
1643
1644 return;
1645 case WLAN_CIPHER_SUITE_CCMP:
1646 case WLAN_CIPHER_SUITE_GCMP:
1647 case WLAN_CIPHER_SUITE_GCMP_256:
1648 case WLAN_CIPHER_SUITE_TKIP:
1649
1650 break;
1651 default:
1652
1653 data->unhandled_cipher = true;
1654 return;
1655 }
1656
1657 data->num_keys++;
1658
1659
1660
1661
1662
1663 if (sta) {
1664 struct ieee80211_key_seq seq = {};
1665 union iwl_all_tsc_rsc *sc =
1666 &data->status->gtk[0].rsc.all_tsc_rsc;
1667
1668 if (data->find_phase)
1669 return;
1670
1671 switch (key->cipher) {
1672 case WLAN_CIPHER_SUITE_CCMP:
1673 case WLAN_CIPHER_SUITE_GCMP:
1674 case WLAN_CIPHER_SUITE_GCMP_256:
1675 iwl_mvm_set_aes_rx_seq(data->mvm, sc->aes.unicast_rsc,
1676 sta, key);
1677 atomic64_set(&key->tx_pn, le64_to_cpu(sc->aes.tsc.pn));
1678 break;
1679 case WLAN_CIPHER_SUITE_TKIP:
1680 iwl_mvm_tkip_sc_to_seq(&sc->tkip.tsc, &seq);
1681 iwl_mvm_set_tkip_rx_seq(sc->tkip.unicast_rsc, key);
1682 atomic64_set(&key->tx_pn,
1683 (u64)seq.tkip.iv16 |
1684 ((u64)seq.tkip.iv32 << 16));
1685 break;
1686 }
1687
1688
1689 return;
1690 }
1691
1692 if (data->find_phase) {
1693 data->last_gtk = key;
1694 data->cipher = key->cipher;
1695 return;
1696 }
1697
1698 if (data->status->num_of_gtk_rekeys)
1699 ieee80211_remove_key(key);
1700 else if (data->last_gtk == key)
1701 iwl_mvm_set_key_rx_seq(data->mvm, key, data->status);
1702}
1703
1704static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
1705 struct ieee80211_vif *vif,
1706 struct iwl_wowlan_status *status)
1707{
1708 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1709 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
1710 .mvm = mvm,
1711 .status = status,
1712 };
1713 u32 disconnection_reasons =
1714 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1715 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
1716
1717 if (!status || !vif->bss_conf.bssid)
1718 return false;
1719
1720 if (le32_to_cpu(status->wakeup_reasons) & disconnection_reasons)
1721 return false;
1722
1723
1724 gtkdata.find_phase = true;
1725 ieee80211_iter_keys(mvm->hw, vif,
1726 iwl_mvm_d3_update_keys, >kdata);
1727
1728 if (gtkdata.unhandled_cipher)
1729 return false;
1730 if (!gtkdata.num_keys)
1731 goto out;
1732 if (!gtkdata.last_gtk)
1733 return false;
1734
1735
1736
1737
1738
1739 gtkdata.find_phase = false;
1740 ieee80211_iter_keys(mvm->hw, vif,
1741 iwl_mvm_d3_update_keys, >kdata);
1742
1743 IWL_DEBUG_WOWLAN(mvm, "num of GTK rekeying %d\n",
1744 le32_to_cpu(status->num_of_gtk_rekeys));
1745 if (status->num_of_gtk_rekeys) {
1746 struct ieee80211_key_conf *key;
1747 struct {
1748 struct ieee80211_key_conf conf;
1749 u8 key[32];
1750 } conf = {
1751 .conf.cipher = gtkdata.cipher,
1752 .conf.keyidx =
1753 iwlmvm_wowlan_gtk_idx(&status->gtk[0]),
1754 };
1755 __be64 replay_ctr;
1756
1757 IWL_DEBUG_WOWLAN(mvm,
1758 "Received from FW GTK cipher %d, key index %d\n",
1759 conf.conf.cipher, conf.conf.keyidx);
1760 switch (gtkdata.cipher) {
1761 case WLAN_CIPHER_SUITE_CCMP:
1762 case WLAN_CIPHER_SUITE_GCMP:
1763 BUILD_BUG_ON(WLAN_KEY_LEN_CCMP != WLAN_KEY_LEN_GCMP);
1764 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_CCMP);
1765 conf.conf.keylen = WLAN_KEY_LEN_CCMP;
1766 memcpy(conf.conf.key, status->gtk[0].key,
1767 WLAN_KEY_LEN_CCMP);
1768 break;
1769 case WLAN_CIPHER_SUITE_GCMP_256:
1770 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_GCMP_256);
1771 conf.conf.keylen = WLAN_KEY_LEN_GCMP_256;
1772 memcpy(conf.conf.key, status->gtk[0].key,
1773 WLAN_KEY_LEN_GCMP_256);
1774 break;
1775 case WLAN_CIPHER_SUITE_TKIP:
1776 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_TKIP);
1777 conf.conf.keylen = WLAN_KEY_LEN_TKIP;
1778 memcpy(conf.conf.key, status->gtk[0].key, 16);
1779
1780 memcpy(conf.conf.key +
1781 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
1782 status->gtk[0].tkip_mic_key, 8);
1783 break;
1784 }
1785
1786 key = ieee80211_gtk_rekey_add(vif, &conf.conf);
1787 if (IS_ERR(key))
1788 return false;
1789 iwl_mvm_set_key_rx_seq(mvm, key, status);
1790
1791 replay_ctr =
1792 cpu_to_be64(le64_to_cpu(status->replay_ctr));
1793
1794 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid,
1795 (void *)&replay_ctr, GFP_KERNEL);
1796 }
1797
1798out:
1799 if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
1800 WOWLAN_GET_STATUSES, 0) < 10) {
1801 mvmvif->seqno_valid = true;
1802
1803 mvmvif->seqno = le16_to_cpu(status->non_qos_seq_ctr) + 0x10;
1804 }
1805
1806 return true;
1807}
1808
1809
1810#define iwl_mvm_parse_wowlan_status_common(_ver) \
1811static struct iwl_wowlan_status * \
1812iwl_mvm_parse_wowlan_status_common_ ## _ver(struct iwl_mvm *mvm, \
1813 void *_data, int len) \
1814{ \
1815 struct iwl_wowlan_status *status; \
1816 struct iwl_wowlan_status_ ##_ver *data = _data; \
1817 int data_size; \
1818 \
1819 if (len < sizeof(*data)) { \
1820 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \
1821 return ERR_PTR(-EIO); \
1822 } \
1823 \
1824 data_size = ALIGN(le32_to_cpu(data->wake_packet_bufsize), 4); \
1825 if (len != sizeof(*data) + data_size) { \
1826 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \
1827 return ERR_PTR(-EIO); \
1828 } \
1829 \
1830 status = kzalloc(sizeof(*status) + data_size, GFP_KERNEL); \
1831 if (!status) \
1832 return ERR_PTR(-ENOMEM); \
1833 \
1834 \
1835 status->replay_ctr = data->replay_ctr; \
1836 status->pattern_number = data->pattern_number; \
1837 status->non_qos_seq_ctr = data->non_qos_seq_ctr; \
1838 memcpy(status->qos_seq_ctr, data->qos_seq_ctr, \
1839 sizeof(status->qos_seq_ctr)); \
1840 status->wakeup_reasons = data->wakeup_reasons; \
1841 status->num_of_gtk_rekeys = data->num_of_gtk_rekeys; \
1842 status->received_beacons = data->received_beacons; \
1843 status->wake_packet_length = data->wake_packet_length; \
1844 status->wake_packet_bufsize = data->wake_packet_bufsize; \
1845 memcpy(status->wake_packet, data->wake_packet, \
1846 le32_to_cpu(status->wake_packet_bufsize)); \
1847 \
1848 return status; \
1849}
1850
1851iwl_mvm_parse_wowlan_status_common(v6)
1852iwl_mvm_parse_wowlan_status_common(v7)
1853iwl_mvm_parse_wowlan_status_common(v9)
1854
1855static struct iwl_wowlan_status *
1856iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id)
1857{
1858 struct iwl_wowlan_status *status;
1859 struct iwl_wowlan_get_status_cmd get_status_cmd = {
1860 .sta_id = cpu_to_le32(sta_id),
1861 };
1862 struct iwl_host_cmd cmd = {
1863 .id = WOWLAN_GET_STATUSES,
1864 .flags = CMD_WANT_SKB,
1865 .data = { &get_status_cmd, },
1866 .len = { sizeof(get_status_cmd), },
1867 };
1868 int ret, len;
1869 u8 notif_ver;
1870 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
1871 WOWLAN_GET_STATUSES,
1872 IWL_FW_CMD_VER_UNKNOWN);
1873
1874 if (cmd_ver == IWL_FW_CMD_VER_UNKNOWN)
1875 cmd.len[0] = 0;
1876
1877 lockdep_assert_held(&mvm->mutex);
1878
1879 ret = iwl_mvm_send_cmd(mvm, &cmd);
1880 if (ret) {
1881 IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret);
1882 return ERR_PTR(ret);
1883 }
1884
1885 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
1886
1887
1888 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
1889 WOWLAN_GET_STATUSES, 0);
1890 if (!notif_ver)
1891 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,
1892 WOWLAN_GET_STATUSES, 7);
1893
1894 if (!fw_has_api(&mvm->fw->ucode_capa,
1895 IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL)) {
1896 struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data;
1897
1898 status = iwl_mvm_parse_wowlan_status_common_v6(mvm,
1899 cmd.resp_pkt->data,
1900 len);
1901 if (IS_ERR(status))
1902 goto out_free_resp;
1903
1904 BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) >
1905 sizeof(status->gtk[0].key));
1906 BUILD_BUG_ON(sizeof(v6->gtk.tkip_mic_key) >
1907 sizeof(status->gtk[0].tkip_mic_key));
1908
1909
1910 memcpy(status->gtk[0].key, v6->gtk.decrypt_key,
1911 sizeof(v6->gtk.decrypt_key));
1912 memcpy(status->gtk[0].tkip_mic_key, v6->gtk.tkip_mic_key,
1913 sizeof(v6->gtk.tkip_mic_key));
1914 memcpy(&status->gtk[0].rsc, &v6->gtk.rsc,
1915 sizeof(status->gtk[0].rsc));
1916
1917
1918 status->gtk[0].key_len = 16;
1919
1920
1921
1922
1923
1924
1925 status->gtk[0].key_flags = v6->gtk.key_index | BIT(7);
1926 } else if (notif_ver == 7) {
1927 struct iwl_wowlan_status_v7 *v7 = (void *)cmd.resp_pkt->data;
1928
1929 status = iwl_mvm_parse_wowlan_status_common_v7(mvm,
1930 cmd.resp_pkt->data,
1931 len);
1932 if (IS_ERR(status))
1933 goto out_free_resp;
1934
1935 status->gtk[0] = v7->gtk[0];
1936 status->igtk[0] = v7->igtk[0];
1937 } else if (notif_ver == 9 || notif_ver == 10 || notif_ver == 11) {
1938 struct iwl_wowlan_status_v9 *v9 = (void *)cmd.resp_pkt->data;
1939
1940
1941
1942
1943 status = iwl_mvm_parse_wowlan_status_common_v9(mvm,
1944 cmd.resp_pkt->data,
1945 len);
1946 if (IS_ERR(status))
1947 goto out_free_resp;
1948
1949 status->gtk[0] = v9->gtk[0];
1950 status->igtk[0] = v9->igtk[0];
1951
1952 status->tid_tear_down = v9->tid_tear_down;
1953 } else {
1954 IWL_ERR(mvm,
1955 "Firmware advertises unknown WoWLAN status response %d!\n",
1956 notif_ver);
1957 status = ERR_PTR(-EIO);
1958 }
1959
1960out_free_resp:
1961 iwl_free_resp(&cmd);
1962 return status;
1963}
1964
1965static struct iwl_wowlan_status *
1966iwl_mvm_get_wakeup_status(struct iwl_mvm *mvm, u8 sta_id)
1967{
1968 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, LONG_GROUP,
1969 OFFLOADS_QUERY_CMD,
1970 IWL_FW_CMD_VER_UNKNOWN);
1971 __le32 station_id = cpu_to_le32(sta_id);
1972 u32 cmd_size = cmd_ver != IWL_FW_CMD_VER_UNKNOWN ? sizeof(station_id) : 0;
1973
1974 if (!mvm->net_detect) {
1975
1976 int ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, 0,
1977 cmd_size, &station_id);
1978 if (ret)
1979 IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret);
1980 }
1981
1982 return iwl_mvm_send_wowlan_get_status(mvm, sta_id);
1983}
1984
1985
1986static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
1987 struct ieee80211_vif *vif)
1988{
1989 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1990 struct iwl_wowlan_status_data status;
1991 struct iwl_wowlan_status *fw_status;
1992 int i;
1993 bool keep;
1994 struct iwl_mvm_sta *mvm_ap_sta;
1995
1996 fw_status = iwl_mvm_get_wakeup_status(mvm, mvmvif->ap_sta_id);
1997 if (IS_ERR_OR_NULL(fw_status))
1998 goto out_unlock;
1999
2000 IWL_DEBUG_WOWLAN(mvm, "wakeup reason 0x%x\n",
2001 le32_to_cpu(fw_status->wakeup_reasons));
2002
2003 status.pattern_number = le16_to_cpu(fw_status->pattern_number);
2004 for (i = 0; i < 8; i++)
2005 status.qos_seq_ctr[i] =
2006 le16_to_cpu(fw_status->qos_seq_ctr[i]);
2007 status.wakeup_reasons = le32_to_cpu(fw_status->wakeup_reasons);
2008 status.wake_packet_length =
2009 le32_to_cpu(fw_status->wake_packet_length);
2010 status.wake_packet_bufsize =
2011 le32_to_cpu(fw_status->wake_packet_bufsize);
2012 status.wake_packet = fw_status->wake_packet;
2013
2014
2015 mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, 0);
2016 if (!mvm_ap_sta)
2017 goto out_free;
2018
2019 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
2020 u16 seq = status.qos_seq_ctr[i];
2021
2022 seq += 0x10;
2023 mvm_ap_sta->tid_data[i].seq_number = seq;
2024 }
2025
2026 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) {
2027 i = mvm->offload_tid;
2028 iwl_trans_set_q_ptrs(mvm->trans,
2029 mvm_ap_sta->tid_data[i].txq_id,
2030 mvm_ap_sta->tid_data[i].seq_number >> 4);
2031 }
2032
2033
2034 mutex_unlock(&mvm->mutex);
2035
2036 iwl_mvm_report_wakeup_reasons(mvm, vif, &status);
2037
2038 keep = iwl_mvm_setup_connection_keep(mvm, vif, fw_status);
2039
2040 kfree(fw_status);
2041 return keep;
2042
2043out_free:
2044 kfree(fw_status);
2045out_unlock:
2046 mutex_unlock(&mvm->mutex);
2047 return false;
2048}
2049
2050#define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \
2051 IWL_SCAN_MAX_PROFILES)
2052
2053struct iwl_mvm_nd_query_results {
2054 u32 matched_profiles;
2055 u8 matches[ND_QUERY_BUF_LEN];
2056};
2057
2058static int
2059iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
2060 struct iwl_mvm_nd_query_results *results)
2061{
2062 struct iwl_scan_offload_profiles_query *query;
2063 struct iwl_host_cmd cmd = {
2064 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD,
2065 .flags = CMD_WANT_SKB,
2066 };
2067 int ret, len;
2068 size_t query_len, matches_len;
2069 int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw);
2070
2071 ret = iwl_mvm_send_cmd(mvm, &cmd);
2072 if (ret) {
2073 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret);
2074 return ret;
2075 }
2076
2077 if (fw_has_api(&mvm->fw->ucode_capa,
2078 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2079 query_len = sizeof(struct iwl_scan_offload_profiles_query);
2080 matches_len = sizeof(struct iwl_scan_offload_profile_match) *
2081 max_profiles;
2082 } else {
2083 query_len = sizeof(struct iwl_scan_offload_profiles_query_v1);
2084 matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) *
2085 max_profiles;
2086 }
2087
2088 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
2089 if (len < query_len) {
2090 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");
2091 ret = -EIO;
2092 goto out_free_resp;
2093 }
2094
2095 query = (void *)cmd.resp_pkt->data;
2096
2097 results->matched_profiles = le32_to_cpu(query->matched_profiles);
2098 memcpy(results->matches, query->matches, matches_len);
2099
2100#ifdef CONFIG_IWLWIFI_DEBUGFS
2101 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done);
2102#endif
2103
2104out_free_resp:
2105 iwl_free_resp(&cmd);
2106 return ret;
2107}
2108
2109static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm,
2110 struct iwl_mvm_nd_query_results *query,
2111 int idx)
2112{
2113 int n_chans = 0, i;
2114
2115 if (fw_has_api(&mvm->fw->ucode_capa,
2116 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2117 struct iwl_scan_offload_profile_match *matches =
2118 (struct iwl_scan_offload_profile_match *)query->matches;
2119
2120 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++)
2121 n_chans += hweight8(matches[idx].matching_channels[i]);
2122 } else {
2123 struct iwl_scan_offload_profile_match_v1 *matches =
2124 (struct iwl_scan_offload_profile_match_v1 *)query->matches;
2125
2126 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++)
2127 n_chans += hweight8(matches[idx].matching_channels[i]);
2128 }
2129
2130 return n_chans;
2131}
2132
2133static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm,
2134 struct iwl_mvm_nd_query_results *query,
2135 struct cfg80211_wowlan_nd_match *match,
2136 int idx)
2137{
2138 int i;
2139
2140 if (fw_has_api(&mvm->fw->ucode_capa,
2141 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2142 struct iwl_scan_offload_profile_match *matches =
2143 (struct iwl_scan_offload_profile_match *)query->matches;
2144
2145 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++)
2146 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2147 match->channels[match->n_channels++] =
2148 mvm->nd_channels[i]->center_freq;
2149 } else {
2150 struct iwl_scan_offload_profile_match_v1 *matches =
2151 (struct iwl_scan_offload_profile_match_v1 *)query->matches;
2152
2153 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++)
2154 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2155 match->channels[match->n_channels++] =
2156 mvm->nd_channels[i]->center_freq;
2157 }
2158}
2159
2160static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
2161 struct ieee80211_vif *vif)
2162{
2163 struct cfg80211_wowlan_nd_info *net_detect = NULL;
2164 struct cfg80211_wowlan_wakeup wakeup = {
2165 .pattern_idx = -1,
2166 };
2167 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
2168 struct iwl_mvm_nd_query_results query;
2169 struct iwl_wowlan_status *fw_status;
2170 unsigned long matched_profiles;
2171 u32 reasons = 0;
2172 int i, n_matches, ret;
2173
2174 fw_status = iwl_mvm_get_wakeup_status(mvm, IWL_MVM_INVALID_STA);
2175 if (!IS_ERR_OR_NULL(fw_status)) {
2176 reasons = le32_to_cpu(fw_status->wakeup_reasons);
2177 kfree(fw_status);
2178 }
2179
2180 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
2181 wakeup.rfkill_release = true;
2182
2183 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS)
2184 goto out;
2185
2186 ret = iwl_mvm_netdetect_query_results(mvm, &query);
2187 if (ret || !query.matched_profiles) {
2188 wakeup_report = NULL;
2189 goto out;
2190 }
2191
2192 matched_profiles = query.matched_profiles;
2193 if (mvm->n_nd_match_sets) {
2194 n_matches = hweight_long(matched_profiles);
2195 } else {
2196 IWL_ERR(mvm, "no net detect match information available\n");
2197 n_matches = 0;
2198 }
2199
2200 net_detect = kzalloc(struct_size(net_detect, matches, n_matches),
2201 GFP_KERNEL);
2202 if (!net_detect || !n_matches)
2203 goto out_report_nd;
2204
2205 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) {
2206 struct cfg80211_wowlan_nd_match *match;
2207 int idx, n_channels = 0;
2208
2209 n_channels = iwl_mvm_query_num_match_chans(mvm, &query, i);
2210
2211 match = kzalloc(struct_size(match, channels, n_channels),
2212 GFP_KERNEL);
2213 if (!match)
2214 goto out_report_nd;
2215
2216 net_detect->matches[net_detect->n_matches++] = match;
2217
2218
2219
2220
2221 idx = mvm->n_nd_match_sets - i - 1;
2222 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len;
2223 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid,
2224 match->ssid.ssid_len);
2225
2226 if (mvm->n_nd_channels < n_channels)
2227 continue;
2228
2229 iwl_mvm_query_set_freqs(mvm, &query, match, i);
2230 }
2231
2232out_report_nd:
2233 wakeup.net_detect = net_detect;
2234out:
2235 iwl_mvm_free_nd(mvm);
2236
2237 mutex_unlock(&mvm->mutex);
2238 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
2239
2240 if (net_detect) {
2241 for (i = 0; i < net_detect->n_matches; i++)
2242 kfree(net_detect->matches[i]);
2243 kfree(net_detect);
2244 }
2245}
2246
2247static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
2248 struct ieee80211_vif *vif)
2249{
2250
2251 if (data == vif)
2252 return;
2253
2254 if (vif->type == NL80211_IFTYPE_STATION)
2255 ieee80211_resume_disconnect(vif);
2256}
2257
2258static bool iwl_mvm_rt_status(struct iwl_trans *trans, u32 base, u32 *err_id)
2259{
2260 struct error_table_start {
2261
2262 u32 valid;
2263 __le32 err_id;
2264 } err_info;
2265
2266 if (!base)
2267 return false;
2268
2269 iwl_trans_read_mem_bytes(trans, base,
2270 &err_info, sizeof(err_info));
2271 if (err_info.valid && err_id)
2272 *err_id = le32_to_cpu(err_info.err_id);
2273
2274 return !!err_info.valid;
2275}
2276
2277static bool iwl_mvm_check_rt_status(struct iwl_mvm *mvm,
2278 struct ieee80211_vif *vif)
2279{
2280 u32 err_id;
2281
2282
2283 if (iwl_mvm_rt_status(mvm->trans,
2284 mvm->trans->dbg.lmac_error_event_table[0],
2285 &err_id)) {
2286 if (err_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
2287 struct cfg80211_wowlan_wakeup wakeup = {
2288 .rfkill_release = true,
2289 };
2290 ieee80211_report_wowlan_wakeup(vif, &wakeup,
2291 GFP_KERNEL);
2292 }
2293 return true;
2294 }
2295
2296
2297 if (iwl_mvm_rt_status(mvm->trans,
2298 mvm->trans->dbg.lmac_error_event_table[1], NULL))
2299 return true;
2300
2301
2302 if (iwl_mvm_rt_status(mvm->trans,
2303 mvm->trans->dbg.umac_error_event_table, NULL))
2304 return true;
2305
2306 return false;
2307}
2308
2309static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
2310{
2311 struct ieee80211_vif *vif = NULL;
2312 int ret = 1;
2313 enum iwl_d3_status d3_status;
2314 bool keep = false;
2315 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2316 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
2317 bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa,
2318 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST);
2319
2320 mutex_lock(&mvm->mutex);
2321
2322 mvm->last_reset_or_resume_time_jiffies = jiffies;
2323
2324
2325 vif = iwl_mvm_get_bss_vif(mvm);
2326 if (IS_ERR_OR_NULL(vif))
2327 goto err;
2328
2329 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
2330
2331 if (iwl_mvm_check_rt_status(mvm, vif)) {
2332 set_bit(STATUS_FW_ERROR, &mvm->trans->status);
2333 iwl_mvm_dump_nic_error_log(mvm);
2334 iwl_dbg_tlv_time_point(&mvm->fwrt,
2335 IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL);
2336 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
2337 false, 0);
2338 ret = 1;
2339 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2340 goto err;
2341 }
2342
2343 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !unified_image);
2344 if (ret)
2345 goto err;
2346
2347 if (d3_status != IWL_D3_STATUS_ALIVE) {
2348 IWL_INFO(mvm, "Device was reset during suspend\n");
2349 goto err;
2350 }
2351
2352 if (d0i3_first) {
2353 struct iwl_host_cmd cmd = {
2354 .id = D0I3_END_CMD,
2355 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
2356 };
2357 int len;
2358
2359 ret = iwl_mvm_send_cmd(mvm, &cmd);
2360 if (ret < 0) {
2361 IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n",
2362 ret);
2363 goto err;
2364 }
2365 switch (mvm->cmd_ver.d0i3_resp) {
2366 case 0:
2367 break;
2368 case 1:
2369 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
2370 if (len != sizeof(u32)) {
2371 IWL_ERR(mvm,
2372 "Error with D0I3_END_CMD response size (%d)\n",
2373 len);
2374 goto err;
2375 }
2376 if (IWL_D0I3_RESET_REQUIRE &
2377 le32_to_cpu(*(__le32 *)cmd.resp_pkt->data)) {
2378 iwl_write32(mvm->trans, CSR_RESET,
2379 CSR_RESET_REG_FLAG_FORCE_NMI);
2380 iwl_free_resp(&cmd);
2381 }
2382 break;
2383 default:
2384 WARN_ON(1);
2385 }
2386 }
2387
2388 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2389
2390
2391
2392
2393
2394 iwl_mvm_update_changed_regdom(mvm);
2395
2396
2397 iwl_mvm_ppag_send_cmd(mvm);
2398
2399 if (!unified_image)
2400
2401 iwl_mvm_sar_select_profile(mvm, 1, 1);
2402
2403 if (mvm->net_detect) {
2404
2405
2406
2407
2408
2409
2410 if (unified_image)
2411 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT,
2412 false);
2413
2414 iwl_mvm_query_netdetect_reasons(mvm, vif);
2415
2416 goto out;
2417 } else {
2418 keep = iwl_mvm_query_wakeup_reasons(mvm, vif);
2419#ifdef CONFIG_IWLWIFI_DEBUGFS
2420 if (keep)
2421 mvm->keep_vif = vif;
2422#endif
2423
2424 goto out_iterate;
2425 }
2426
2427err:
2428 iwl_mvm_free_nd(mvm);
2429 mutex_unlock(&mvm->mutex);
2430
2431out_iterate:
2432 if (!test)
2433 ieee80211_iterate_active_interfaces_mtx(mvm->hw,
2434 IEEE80211_IFACE_ITER_NORMAL,
2435 iwl_mvm_d3_disconnect_iter, keep ? vif : NULL);
2436
2437out:
2438 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
2439
2440
2441 if (unified_image && !ret) {
2442
2443 if (d0i3_first)
2444 return 0;
2445
2446 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL);
2447 if (!ret)
2448 return 0;
2449 }
2450
2451
2452
2453
2454
2455
2456 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
2457
2458 return 1;
2459}
2460
2461int iwl_mvm_resume(struct ieee80211_hw *hw)
2462{
2463 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2464 int ret;
2465
2466 ret = __iwl_mvm_resume(mvm, false);
2467
2468 iwl_mvm_resume_tcm(mvm);
2469
2470 iwl_fw_runtime_resume(&mvm->fwrt);
2471
2472 return ret;
2473}
2474
2475void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
2476{
2477 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2478
2479 device_set_wakeup_enable(mvm->trans->dev, enabled);
2480}
2481
2482#ifdef CONFIG_IWLWIFI_DEBUGFS
2483static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
2484{
2485 struct iwl_mvm *mvm = inode->i_private;
2486 int err;
2487
2488 if (mvm->d3_test_active)
2489 return -EBUSY;
2490
2491 file->private_data = inode->i_private;
2492
2493 iwl_mvm_pause_tcm(mvm, true);
2494
2495 iwl_fw_runtime_suspend(&mvm->fwrt);
2496
2497
2498 rtnl_lock();
2499 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
2500 rtnl_unlock();
2501 if (err > 0)
2502 err = -EINVAL;
2503 if (err)
2504 return err;
2505
2506 mvm->d3_test_active = true;
2507 mvm->keep_vif = NULL;
2508 return 0;
2509}
2510
2511static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
2512 size_t count, loff_t *ppos)
2513{
2514 struct iwl_mvm *mvm = file->private_data;
2515 u32 pme_asserted;
2516
2517 while (true) {
2518
2519 if (mvm->d3_test_pme_ptr) {
2520 pme_asserted = iwl_trans_read_mem32(mvm->trans,
2521 mvm->d3_test_pme_ptr);
2522 if (pme_asserted)
2523 break;
2524 }
2525
2526 if (msleep_interruptible(100))
2527 break;
2528 }
2529
2530 return 0;
2531}
2532
2533static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
2534 struct ieee80211_vif *vif)
2535{
2536
2537 if (_data == vif)
2538 return;
2539
2540 if (vif->type == NL80211_IFTYPE_STATION)
2541 ieee80211_connection_loss(vif);
2542}
2543
2544static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
2545{
2546 struct iwl_mvm *mvm = inode->i_private;
2547 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2548 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
2549
2550 mvm->d3_test_active = false;
2551
2552 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
2553
2554 rtnl_lock();
2555 __iwl_mvm_resume(mvm, true);
2556 rtnl_unlock();
2557
2558 iwl_mvm_resume_tcm(mvm);
2559
2560 iwl_fw_runtime_resume(&mvm->fwrt);
2561
2562 iwl_abort_notification_waits(&mvm->notif_wait);
2563 if (!unified_image) {
2564 int remaining_time = 10;
2565
2566 ieee80211_restart_hw(mvm->hw);
2567
2568
2569 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2570 remaining_time > 0) {
2571 remaining_time--;
2572 msleep(1000);
2573 }
2574
2575 if (remaining_time == 0)
2576 IWL_ERR(mvm, "Timed out waiting for HW restart!\n");
2577 }
2578
2579 ieee80211_iterate_active_interfaces_atomic(
2580 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
2581 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif);
2582
2583 return 0;
2584}
2585
2586const struct file_operations iwl_dbgfs_d3_test_ops = {
2587 .llseek = no_llseek,
2588 .open = iwl_mvm_d3_test_open,
2589 .read = iwl_mvm_d3_test_read,
2590 .release = iwl_mvm_d3_test_release,
2591};
2592#endif
2593