projects / linux-2.6-block.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
wifi: iwlwifi: mvm: Fix -Warray-bounds bug in iwl_mvm_wait_d3_notif()
[linux-2.6-block.git] / drivers / net / wireless / intel / iwlwifi / mvm / d3.c
CommitLineData
8e99ea8d
JB		 1// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
2/*
537b76d2 3 * Copyright (C) 2012-2014, 2018-2022 Intel Corporation
8e99ea8d
JB		 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5 * Copyright (C) 2016-2017 Intel Deutschland GmbH
6 */
f444eb10 7#include <linux/etherdevice.h>
f0c2646a 8#include <linux/ip.h>
debff618 9#include <linux/fs.h>
8ca151b5
JB		 10#include <net/cfg80211.h>
11#include <net/ipv6.h>
f0c2646a 12#include <net/tcp.h>
f7fc5989 13#include <net/addrconf.h>
8ca151b5
JB		 14#include "iwl-modparams.h"
15#include "fw-api.h"
16#include "mvm.h"
9e3c3936 17#include "fw/img.h"
8ca151b5
JB		 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
8ca151b5
JB		 26 mutex_lock(&mvm->mutex);
27
2a42aea7
NE		 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;
8ca151b5 33 mvmvif->rekey_data.replay_ctr =
86e8e657 34 cpu_to_le64(be64_to_cpup((const __be64 *)data->replay_ctr));
8ca151b5
JB		 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
c97dab40
SS		 49 memset(mvmvif->tentative_addrs, 0, sizeof(mvmvif->tentative_addrs));
50
a3777e0f 51 read_lock_bh(&idev->lock);
8ca151b5
JB		 52 list_for_each_entry(ifa, &idev->addr_list, if_list) {
53 mvmvif->target_ipv6_addrs[idx] = ifa->addr;
c97dab40
SS		 54 if (ifa->flags & IFA_F_TENTATIVE)
55 __set_bit(idx, mvmvif->tentative_addrs);
8ca151b5 56 idx++;
5369d6c1 57 if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX)
8ca151b5
JB		 58 break;
59 }
a3777e0f 60 read_unlock_bh(&idev->lock);
8ca151b5
JB		 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
f5e28eac
JB		 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 /* 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
af3aab9c
JB		 104struct wowlan_key_reprogram_data {
105 bool error;
5312e54d 106 int wep_key_idx;
8ca151b5
JB		 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);
af3aab9c 117 struct wowlan_key_reprogram_data *data = _data;
631ee512 118 int ret;
8ca151b5 119
8ca151b5
JB		 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 */
5312e54d
JB		 151 data->wep_key_idx++;
152 wkc.wep_key.key_offset = data->wep_key_idx;
8ca151b5
JB		 153 }
154
af3aab9c
JB		 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;
b6a46b4f 163 mutex_unlock(&mvm->mutex);
f444eb10 164
8ca151b5 165 /* don't upload key again */
ac8ef0ce 166 return;
8ca151b5
JB		 167 }
168 default:
169 data->error = true;
ac8ef0ce 170 return;
2a42aea7
NE		 171 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
172 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2a42aea7 173 return;
8ca151b5
JB		 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 */
ac8ef0ce 182 return;
631ee512 183 case WLAN_CIPHER_SUITE_TKIP:
631ee512
JB		 184 case WLAN_CIPHER_SUITE_CCMP:
185 case WLAN_CIPHER_SUITE_GCMP:
186 case WLAN_CIPHER_SUITE_GCMP_256:
631ee512
JB		 187 break;
188 }
189
af3aab9c
JB		 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 {
631ee512 200 /*
af3aab9c
JB		 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().
631ee512 205 */
af3aab9c
JB		 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);
631ee512 209 }
af3aab9c
JB		 210 mutex_unlock(&mvm->mutex);
211 data->error = ret != 0;
631ee512
JB		 212}
213
214struct wowlan_key_rsc_tsc_data {
79e561f0 215 struct iwl_wowlan_rsc_tsc_params_cmd_v4 *rsc_tsc;
631ee512
JB		 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;
8ca151b5
JB		 235 case WLAN_CIPHER_SUITE_TKIP:
236 if (sta) {
1ad4f639
EP		 237 u64 pn64;
238
ee3ae3a1
DH		 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;
8ca151b5 243
1ad4f639
EP		 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));
8ca151b5
JB		 247 } else {
248 tkip_sc =
ee3ae3a1 249 data->rsc_tsc->params.all_tsc_rsc.tkip.multicast_rsc;
8ca151b5
JB		 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);
8ca151b5
JB		 261 }
262
631ee512 263 data->have_rsc_tsc = true;
8ca151b5
JB		 264 break;
265 case WLAN_CIPHER_SUITE_CCMP:
c7f996eb
JB		 266 case WLAN_CIPHER_SUITE_GCMP:
267 case WLAN_CIPHER_SUITE_GCMP_256:
8ca151b5 268 if (sta) {
631ee512 269 struct aes_sc *aes_tx_sc;
6645d5e4 270 u64 pn64;
8ca151b5 271
ee3ae3a1
DH		 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;
8ca151b5 276
6645d5e4
JB		 277 pn64 = atomic64_read(&key->tx_pn);
278 aes_tx_sc->pn = cpu_to_le64(pn64);
8ca151b5 279 } else {
ee3ae3a1
DH		 280 aes_sc =
281 data->rsc_tsc->params.all_tsc_rsc.aes.multicast_rsc;
8ca151b5
JB		 282 }
283
284 /*
285 * For non-QoS this relies on the fact that both the uCode and
f5e28eac 286 * mac80211/our RX code use TID 0 for checking the PN.
8ca151b5 287 */
f5e28eac
JB		 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);
efa40c7e
SS		 294 rcu_read_lock();
295 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
296 if (WARN_ON(!ptk_pn)) {
297 rcu_read_unlock();
f5e28eac 298 break;
efa40c7e 299 }
f5e28eac
JB		 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 }
efa40c7e
SS		 311
312 rcu_read_unlock();
f5e28eac
JB		 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 }
8ca151b5 325 }
631ee512 326 data->have_rsc_tsc = true;
8ca151b5
JB		 327 break;
328 }
631ee512 329}
8ca151b5 330
79e561f0
JB		 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 /* 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 {
27a221f4 364 if (WARN_ON(data->gtks >= ARRAY_SIZE(data->gtk_ids)))
79e561f0
JB		 365 return;
366 data->gtk_ids[data->gtks] = key->keyidx;
367 rsc = data->rsc->mcast_rsc[data->gtks % 2];
27a221f4 368 if (WARN_ON(key->keyidx >=
79e561f0
JB		 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
631ee512
JB		 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);
971cbe50 456 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TSC_RSC_PARAM,
631ee512 457 IWL_FW_CMD_VER_UNKNOWN);
631ee512 458 int ret;
19d9fa7a 459
79e561f0
JB		 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;
650cadb7 473 data.rsc->sta_id = cpu_to_le32(mvmvif->deflink.ap_sta_id);
79e561f0
JB		 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);
650cadb7
GG		 496 data.rsc_tsc->sta_id =
497 cpu_to_le32(mvmvif->deflink.ap_sta_id);
79e561f0
JB		 498 } else {
499 /* ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN */
500 size = sizeof(data.rsc_tsc->params);
501 }
631ee512 502
79e561f0
JB		 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);
631ee512
JB		 514 } else {
515 ret = 0;
516 WARN_ON_ONCE(1);
8ca151b5 517 }
631ee512 518
631ee512 519 return ret;
8ca151b5
JB		 520}
521
0419e5e6
JB		 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++) {
11e94d2b 567 ieee80211_get_key_rx_seq(key, i, &seq);
0419e5e6
JB		 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
be05fae2
JB		 589struct wowlan_key_gtk_type_iter {
590 struct iwl_wowlan_kek_kck_material_cmd_v4 *kek_kck_cmd;
591};
592
593static 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;
5933b862
NG		 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;
be05fae2
JB		 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);
5933b862 620 return;
be05fae2
JB		 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);
5933b862 626 return;
be05fae2
JB		 627 }
628}
629
0c546fb6
LC		 630static int iwl_mvm_send_patterns_v1(struct iwl_mvm *mvm,
631 struct cfg80211_wowlan *wowlan)
8ca151b5 632{
0c546fb6 633 struct iwl_wowlan_patterns_cmd_v1 *pattern_cmd;
8ca151b5
JB		 634 struct iwl_host_cmd cmd = {
635 .id = WOWLAN_PATTERNS,
636 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
8ca151b5
JB		 637 };
638 int i, err;
639
640 if (!wowlan->n_patterns)
641 return 0;
642
e3448967 643 cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns);
8ca151b5
JB		 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
0c546fb6 670static int iwl_mvm_send_patterns(struct iwl_mvm *mvm,
0b35991a 671 struct ieee80211_vif *vif,
0c546fb6
LC		 672 struct cfg80211_wowlan *wowlan)
673{
0b35991a 674 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
0c546fb6
LC		 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;
971cbe50 681 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id,
0b35991a 682 IWL_FW_CMD_VER_UNKNOWN);
0c546fb6
LC		 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
0b35991a 690 pattern_cmd = kzalloc(cmd.len[0], GFP_KERNEL);
0c546fb6
LC		 691 if (!pattern_cmd)
692 return -ENOMEM;
693
0b35991a
EG		 694 pattern_cmd->n_patterns = wowlan->n_patterns;
695 if (ver >= 3)
650cadb7 696 pattern_cmd->sta_id = mvmvif->deflink.ap_sta_id;
0c546fb6
LC		 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
8ca151b5
JB		 720static 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;
10a970df 728 struct iwl_binding_cmd_v1 binding_cmd = {};
8ca151b5 729 struct iwl_time_quota_cmd quota_cmd = {};
72cbb73e 730 struct iwl_time_quota_data *quota;
8ca151b5 731 u32 status;
10a970df
DH		 732
733 if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm)))
734 return -EINVAL;
8ca151b5
JB		 735
736 /* add back the PHY */
650cadb7 737 if (WARN_ON(!mvmvif->deflink.phy_ctxt))
8ca151b5
JB		 738 return -EINVAL;
739
740 rcu_read_lock();
d0a9123e 741 ctx = rcu_dereference(vif->bss_conf.chanctx_conf);
8ca151b5
JB		 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
650cadb7 751 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, &chandef,
8ca151b5
JB		 752 chains_static, chains_dynamic);
753 if (ret)
754 return ret;
755
756 /* add back the MAC */
757 mvmvif->uploaded = false;
758
f276e20b 759 if (WARN_ON(!vif->cfg.assoc))
8ca151b5 760 return -EINVAL;
bca49d9a 761
8ca151b5 762 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
8ca151b5
JB		 763 if (ret)
764 return ret;
765
766 /* add back binding - XXX refactor? */
767 binding_cmd.id_and_color =
650cadb7
GG		 768 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id,
769 mvmvif->deflink.phy_ctxt->color));
8ca151b5
JB		 770 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
771 binding_cmd.phy =
650cadb7
GG		 772 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id,
773 mvmvif->deflink.phy_ctxt->color));
8ca151b5
JB		 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,
10a970df
DH		 781 IWL_BINDING_CMD_SIZE_V1, &binding_cmd,
782 &status);
8ca151b5
JB		 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
24afba76 793 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0);
8ca151b5
JB		 794 if (ret)
795 return ret;
650cadb7
GG		 796 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->deflink.ap_sta_id],
797 ap_sta);
8ca151b5 798
3dfd3a97 799 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 800 if (ret)
801 return ret;
802
803 /* and some quota */
72cbb73e
DS		 804 quota = iwl_mvm_quota_cmd_get_quota(mvm, &quota_cmd, 0);
805 quota->id_and_color =
650cadb7
GG		 806 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id,
807 mvmvif->deflink.phy_ctxt->color));
72cbb73e
DS		 808 quota->quota = cpu_to_le32(IWL_MVM_MAX_QUOTA);
809 quota->max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA);
8ca151b5 810
72cbb73e
DS		 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 }
8ca151b5 815
a1022927 816 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0,
72cbb73e 817 iwl_mvm_quota_cmd_size(mvm), &quota_cmd);
8ca151b5
JB		 818 if (ret)
819 IWL_ERR(mvm, "Failed to send quota: %d\n", ret);
820
47c8b154
JD		 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
8ca151b5
JB		 824 return 0;
825}
826
4ac6cb59
JB		 827static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
828 struct ieee80211_vif *vif)
829{
6d9d32b8
JB		 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 };
4ac6cb59
JB		 837 struct iwl_host_cmd cmd = {
838 .id = NON_QOS_TX_COUNTER_CMD,
a1022927 839 .flags = CMD_WANT_SKB,
4ac6cb59
JB		 840 };
841 int err;
842 u32 size;
843
3afec639
EG		 844 cmd.data[0] = &query_cmd;
845 cmd.len[0] = sizeof(query_cmd);
6d9d32b8 846
4ac6cb59
JB		 847 err = iwl_mvm_send_cmd(mvm, &cmd);
848 if (err)
849 return err;
850
65b30348 851 size = iwl_rx_packet_payload_len(cmd.resp_pkt);
6d9d32b8 852 if (size < sizeof(__le16)) {
4ac6cb59 853 err = -EINVAL;
6d9d32b8
JB		 854 } else {
855 err = le16_to_cpup((__le16 *)cmd.resp_pkt->data);
3afec639
EG		 856 /* firmware returns next, not last-used seqno */
857 err = (u16) (err - 0x10);
6d9d32b8 858 }
4ac6cb59
JB		 859
860 iwl_free_resp(&cmd);
861 return err;
862}
863
6d9d32b8
JB		 864void 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
a1022927 881 if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0,
6d9d32b8
JB		 882 sizeof(query_cmd), &query_cmd))
883 IWL_ERR(mvm, "failed to set non-QoS seqno\n");
884}
885
671b5820
LC		 886static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm)
887{
c7d42480 888 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
671b5820 889
fcb6b92a 890 iwl_mvm_stop_device(mvm);
671b5820
LC		 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
9c3deeb5
LC		 903 /* the fw is reset, so all the keys are cleared */
904 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
905
671b5820
LC		 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
671b5820
LC		 914static int
915iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
916 struct cfg80211_wowlan *wowlan,
c8b06a99 917 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
671b5820
LC		 918 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
919 struct ieee80211_sta *ap_sta)
8ca151b5 920{
9d8ce6af 921 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
8ca151b5 922
c8b06a99 923 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
8ca151b5 924
c8b06a99 925 wowlan_config_cmd->is_11n_connection =
046d2e7c 926 ap_sta->deflink.ht_cap.ht_supported;
70b4c536 927 wowlan_config_cmd->flags = ENABLE_L3_FILTERING |
32795a88 928 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING;
8ca151b5 929
971cbe50 930 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 6) {
5b16565a
NG		 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;
8ca151b5 936
5b16565a
NG		 937 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret);
938 }
671b5820 939
c8b06a99 940 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd);
8ca151b5
JB		 941
942 if (wowlan->disconnect)
c8b06a99 943 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 944 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
945 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
946 if (wowlan->magic_pkt)
c8b06a99 947 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 948 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
949 if (wowlan->gtk_rekey_failure)
c8b06a99 950 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 951 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
952 if (wowlan->eap_identity_req)
c8b06a99 953 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 954 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
955 if (wowlan->four_way_handshake)
c8b06a99 956 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 957 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
958 if (wowlan->n_patterns)
c8b06a99 959 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 960 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
961
962 if (wowlan->rfkill_release)
c8b06a99 963 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 964 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
965
f0c2646a
JB		 966 if (wowlan->tcp) {
967 /*
6039f3e1
JB		 968 * Set the "link change" (really "link lost") flag as well
969 * since that implies losing the TCP connection.
f0c2646a 970 */
c8b06a99 971 wowlan_config_cmd->wakeup_filter |=
f0c2646a
JB		 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
d3a6f7fb
EP		 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
671b5820
LC		 986 return 0;
987}
f444eb10 988
0ea93388 989static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
398760aa 990 struct ieee80211_vif *vif)
671b5820 991{
8c7fd6a3
SS		 992 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
993 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
af3aab9c 994 struct wowlan_key_reprogram_data key_data = {};
ac8ef0ce
EP		 995 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
996 int ret;
9e3c3936
NE		 997 u8 cmd_ver;
998 size_t cmd_size;
ac8ef0ce 999
af3aab9c
JB		 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);
ac8ef0ce 1014
af3aab9c
JB		 1015 if (key_data.error)
1016 return -EIO;
1017 }
ee3ae3a1 1018
631ee512
JB		 1019 ret = iwl_mvm_wowlan_config_rsc_tsc(mvm, vif);
1020 if (ret)
1021 return ret;
ac8ef0ce 1022
0419e5e6 1023 if (!fw_has_api(&mvm->fw->ucode_capa,
45c458b4 1024 IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) {
971cbe50 1025 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TKIP_PARAM,
e80bfd11 1026 IWL_FW_CMD_VER_UNKNOWN);
0419e5e6 1027 struct wowlan_key_tkip_data tkip_data = {};
870bde78
DH		 1028 int size;
1029
1030 if (ver == 2) {
0419e5e6
JB		 1031 size = sizeof(tkip_data.tkip);
1032 tkip_data.tkip.sta_id =
650cadb7 1033 cpu_to_le32(mvmvif->deflink.ap_sta_id);
870bde78
DH		 1034 } else if (ver == 1 || ver == IWL_FW_CMD_VER_UNKNOWN) {
1035 size = sizeof(struct iwl_wowlan_tkip_params_cmd_ver_1);
1036 } else {
870bde78 1037 WARN_ON_ONCE(1);
631ee512 1038 return -EINVAL;
870bde78
DH		 1039 }
1040
0419e5e6
JB		 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,
398760aa 1048 CMD_ASYNC, size,
0419e5e6
JB		 1049 &tkip_data.tkip);
1050 if (ret)
631ee512 1051 return ret;
0419e5e6 1052 }
ac8ef0ce
EP		 1053 }
1054
a3f7ba5c 1055 /* configure rekey data only if offloaded rekey is supported (d3) */
0ea93388 1056 if (mvmvif->rekey_data.valid) {
be05fae2
JB		 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
e80bfd11 1064 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
e80bfd11
MG		 1065 WOWLAN_KEK_KCK_MATERIAL,
1066 IWL_FW_CMD_VER_UNKNOWN);
80e67119 1067 if (WARN_ON(cmd_ver != 2 && cmd_ver != 3 && cmd_ver != 4 &&
9e3c3936
NE		 1068 cmd_ver != IWL_FW_CMD_VER_UNKNOWN))
1069 return -EINVAL;
9e3c3936 1070
be05fae2
JB		 1071 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_gtk_type_iter,
1072 &gtk_type_data);
1073
ac8ef0ce 1074 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
2a42aea7
NE		 1075 mvmvif->rekey_data.kck_len);
1076 kek_kck_cmd.kck_len = cpu_to_le16(mvmvif->rekey_data.kck_len);
ac8ef0ce 1077 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
2a42aea7
NE		 1078 mvmvif->rekey_data.kek_len);
1079 kek_kck_cmd.kek_len = cpu_to_le16(mvmvif->rekey_data.kek_len);
ac8ef0ce 1080 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
2a42aea7 1081 kek_kck_cmd.akm = cpu_to_le32(mvmvif->rekey_data.akm);
650cadb7 1082 kek_kck_cmd.sta_id = cpu_to_le32(mvmvif->deflink.ap_sta_id);
80e67119
EG		 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 *)
3827cb59 1095 ((u8 *)_kek_kck_cmd + sizeof(kek_kck_cmd.sta_id));
80e67119 1096 }
ac8ef0ce 1097
19d9fa7a
SS		 1098 IWL_DEBUG_WOWLAN(mvm, "setting akm %d\n",
1099 mvmvif->rekey_data.akm);
1100
398760aa
JB		 1101 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_KEK_KCK_MATERIAL,
1102 CMD_ASYNC, cmd_size, _kek_kck_cmd);
ac8ef0ce 1103 if (ret)
631ee512 1104 return ret;
ac8ef0ce 1105 }
631ee512
JB		 1106
1107 return 0;
ac8ef0ce
EP		 1108}
1109
1110static int
1111iwl_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{
671b5820 1117 int ret;
23ae6128
MG		 1118 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1119 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
8ca151b5 1120
ba7136f3
AM		 1121 mvm->offload_tid = wowlan_config_cmd->offloading_tid;
1122
23ae6128
MG		 1123 if (!unified_image) {
1124 ret = iwl_mvm_switch_to_d3(mvm);
1125 if (ret)
1126 return ret;
3acc952b 1127
23ae6128
MG		 1128 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
1129 if (ret)
1130 return ret;
1131 }
671b5820 1132
f4bfdc5e
EG		 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);
398760aa 1139 ret = iwl_mvm_wowlan_config_key_params(mvm, vif);
f4bfdc5e
EG		 1140 mutex_lock(&mvm->mutex);
1141 if (ret)
1142 return ret;
8ca151b5 1143
c8b06a99
EG		 1144 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
1145 sizeof(*wowlan_config_cmd),
1146 wowlan_config_cmd);
8ca151b5 1147 if (ret)
ac8ef0ce 1148 return ret;
8ca151b5 1149
0c546fb6
LC		 1150 if (fw_has_api(&mvm->fw->ucode_capa,
1151 IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE))
0b35991a 1152 ret = iwl_mvm_send_patterns(mvm, vif, wowlan);
0c546fb6
LC		 1153 else
1154 ret = iwl_mvm_send_patterns_v1(mvm, wowlan);
8ca151b5 1155 if (ret)
ac8ef0ce 1156 return ret;
8ca151b5 1157
debdc23b 1158 return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0);
671b5820
LC		 1159}
1160
3acc952b
LC		 1161static int
1162iwl_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{
3acc952b 1167 int ret;
23ae6128
MG		 1168 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1169 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
3acc952b 1170
23ae6128
MG		 1171 if (!unified_image) {
1172 ret = iwl_mvm_switch_to_d3(mvm);
1173 if (ret)
1174 return ret;
5a143db8
LC		 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;
23ae6128 1184 }
3acc952b 1185
19945dfb
LC		 1186 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies,
1187 IWL_MVM_SCAN_NETDETECT);
d9718da8
LC		 1188 if (ret)
1189 return ret;
3acc952b 1190
8ed4e659 1191 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels))
d9718da8
LC		 1192 return -EBUSY;
1193
8ed4e659 1194 /* save the sched scan matchsets... */
d9718da8
LC		 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
8ed4e659
LC		 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
d9718da8
LC		 1212 return 0;
1213}
1214
1215static 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;
8ed4e659
LC		 1220 kfree(mvm->nd_channels);
1221 mvm->nd_channels = NULL;
1222 mvm->n_nd_channels = 0;
3acc952b
LC		 1223}
1224
671b5820
LC		 1225static 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);
671b5820
LC		 1230 struct ieee80211_vif *vif = NULL;
1231 struct iwl_mvm_vif *mvmvif = NULL;
1232 struct ieee80211_sta *ap_sta = NULL;
671b5820
LC		 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,
708a39aa 1243 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
671b5820
LC		 1244 .data[0] = &d3_cfg_cmd_data,
1245 .len[0] = sizeof(d3_cfg_cmd_data),
1246 };
1247 int ret;
1248 int len __maybe_unused;
23ae6128
MG		 1249 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1250 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
671b5820
LC		 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
1019f9ef
JB		 1263 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1264
00520b7a
EG		 1265 synchronize_net();
1266
7f549e2c
LC		 1267 vif = iwl_mvm_get_bss_vif(mvm);
1268 if (IS_ERR_OR_NULL(vif)) {
671b5820
LC		 1269 ret = 1;
1270 goto out_noreset;
1271 }
1272
671b5820
LC		 1273 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1274
650cadb7 1275 if (mvmvif->deflink.ap_sta_id == IWL_MVM_INVALID_STA) {
3acc952b 1276 /* if we're not associated, this must be netdetect */
566f165d 1277 if (!wowlan->nd_config) {
3acc952b
LC		 1278 ret = 1;
1279 goto out_noreset;
1280 }
1281
1282 ret = iwl_mvm_netdetect_config(
566f165d 1283 mvm, wowlan, wowlan->nd_config, vif);
3acc952b
LC		 1284 if (ret)
1285 goto out;
2021a89d
LC		 1286
1287 mvm->net_detect = true;
3acc952b 1288 } else {
c8b06a99 1289 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
3acc952b 1290
650cadb7 1291 wowlan_config_cmd.sta_id = mvmvif->deflink.ap_sta_id;
f005fd88 1292
1e4d19ca 1293 ap_sta = rcu_dereference_protected(
650cadb7 1294 mvm->fw_id_to_mac_id[mvmvif->deflink.ap_sta_id],
1e4d19ca
LC		 1295 lockdep_is_held(&mvm->mutex));
1296 if (IS_ERR_OR_NULL(ap_sta)) {
1297 ret = -EINVAL;
1298 goto out_noreset;
1299 }
671b5820 1300
1e4d19ca
LC		 1301 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1302 vif, mvmvif, ap_sta);
1303 if (ret)
1304 goto out_noreset;
1e4d19ca
LC		 1305 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1306 vif, mvmvif, ap_sta);
1307 if (ret)
3c2f3b20 1308 goto out;
2021a89d
LC		 1309
1310 mvm->net_detect = false;
1e4d19ca 1311 }
f0c2646a 1312
c1cb92fc 1313 ret = iwl_mvm_power_update_device(mvm);
64b928c4
AB		 1314 if (ret)
1315 goto out;
1316
999609f1 1317 ret = iwl_mvm_power_update_mac(mvm);
ee1e8422
AB		 1318 if (ret)
1319 goto out;
1320
b0114714
JB		 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
e8a583f9 1327 /*
c040fe83
SM		 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.
e8a583f9 1331 */
286ca8eb 1332 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000)
57605833 1333 iwl_fw_dbg_stop_restart_recording(&mvm->fwrt, NULL, true);
e8a583f9 1334
708a39aa
HD		 1335 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
1336
8ca151b5 1337 /* must be last -- this switches firmware state */
debff618 1338 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
8ca151b5
JB		 1339 if (ret)
1340 goto out;
debff618 1341#ifdef CONFIG_IWLWIFI_DEBUGFS
65b30348
JB		 1342 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt);
1343 if (len >= sizeof(u32)) {
debff618
JB		 1344 mvm->d3_test_pme_ptr =
1345 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
debff618
JB		 1346 }
1347#endif
1348 iwl_free_resp(&d3_cfg_cmd);
8ca151b5
JB		 1349
1350 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1351
e5f3f215 1352 ret = iwl_trans_d3_suspend(mvm->trans, test, !unified_image);
8ca151b5 1353 out:
d9718da8 1354 if (ret < 0) {
d9718da8 1355 iwl_mvm_free_nd(mvm);
bac453ab
LC		 1356
1357 if (!unified_image) {
3b37f4c9
JB		 1358 if (mvm->fw_restart > 0) {
1359 mvm->fw_restart--;
bac453ab
LC		 1360 ieee80211_restart_hw(mvm->hw);
1361 }
1362 }
1019f9ef
JB		 1363
1364 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
d9718da8 1365 }
b70ab727 1366 out_noreset:
8ca151b5
JB		 1367 mutex_unlock(&mvm->mutex);
1368
1369 return ret;
1370}
1371
debff618
JB		 1372int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
1373{
d15a747f 1374 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
c43fe907 1375
7d9d0d56 1376 iwl_mvm_pause_tcm(mvm, true);
cf8c3cff 1377
7f8ae00f
HD		 1378 iwl_fw_runtime_suspend(&mvm->fwrt);
1379
debff618
JB		 1380 return __iwl_mvm_suspend(hw, wowlan, false);
1381}
1382
6d9d32b8
JB		 1383/* converted data from the different status responses */
1384struct iwl_wowlan_status_data {
4d4cbb9b
JB		 1385 u64 replay_ctr;
1386 u32 num_of_gtk_rekeys;
1387 u32 received_beacons;
6d9d32b8
JB		 1388 u32 wakeup_reasons;
1389 u32 wake_packet_length;
1390 u32 wake_packet_bufsize;
4d4cbb9b
JB		 1391 u16 pattern_number;
1392 u16 non_qos_seq_ctr;
1393 u16 qos_seq_ctr[8];
1394 u8 tid_tear_down;
1395
2dc97742
JB		 1396 struct {
1397 /* including RX MIC key for TKIP */
1398 u8 key[WOWLAN_KEY_MAX_SIZE];
1399 u8 len;
1400 u8 flags;
1401 } gtk;
1402
4d4cbb9b
JB		 1403 struct {
1404 /*
1405 * We store both the TKIP and AES representations
1406 * coming from the firmware because we decode the
1407 * data from there before we iterate the keys and
1408 * know which one we need.
1409 */
1410 struct {
1411 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
1412 } tkip, aes;
2dc97742
JB		 1413
1414 /*
1415 * We use -1 for when we have valid data but don't know
1416 * the key ID from firmware, and thus it needs to be
1417 * installed with the last key (depending on rekeying).
1418 */
1419 s8 key_id;
1420 bool valid;
1421 } gtk_seq[2];
4d4cbb9b
JB		 1422
1423 struct {
1424 /* Same as above */
1425 struct {
1426 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
1427 u64 tx_pn;
1428 } tkip, aes;
1429 } ptk;
1430
1431 struct {
1432 u64 ipn;
1433 u8 key[WOWLAN_KEY_MAX_SIZE];
1434 u8 len;
1435 u8 flags;
1436 } igtk;
1437
219ed58f 1438 u8 *wake_packet;
6d9d32b8
JB		 1439};
1440
7abc4632
JB		 1441static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
1442 struct ieee80211_vif *vif,
6d9d32b8 1443 struct iwl_wowlan_status_data *status)
9b26b500 1444{
7abc4632 1445 struct sk_buff *pkt = NULL;
9b26b500
JB		 1446 struct cfg80211_wowlan_wakeup wakeup = {
1447 .pattern_idx = -1,
1448 };
1449 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
6d9d32b8 1450 u32 reasons = status->wakeup_reasons;
9b26b500
JB		 1451
1452 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1453 wakeup_report = NULL;
1454 goto report;
1455 }
1456
06ae2ad4
DB		 1457 pm_wakeup_event(mvm->dev, 0);
1458
f444eb10 1459 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
9b26b500 1460 wakeup.magic_pkt = true;
9b26b500 1461
f444eb10 1462 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
9b26b500 1463 wakeup.pattern_idx =
6d9d32b8 1464 status->pattern_number;
9b26b500
JB		 1465
1466 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1467 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH))
1468 wakeup.disconnect = true;
1469
f444eb10 1470 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
9b26b500 1471 wakeup.gtk_rekey_failure = true;
9b26b500 1472
f444eb10 1473 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
9b26b500 1474 wakeup.rfkill_release = true;
9b26b500 1475
f444eb10 1476 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
9b26b500 1477 wakeup.eap_identity_req = true;
9b26b500 1478
f444eb10 1479 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
9b26b500 1480 wakeup.four_way_handshake = true;
9b26b500 1481
f0c2646a
JB		 1482 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1483 wakeup.tcp_connlost = true;
1484
1485 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1486 wakeup.tcp_nomoretokens = true;
1487
1488 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1489 wakeup.tcp_match = true;
1490
219ed58f 1491 if (status->wake_packet) {
6d9d32b8
JB		 1492 int pktsize = status->wake_packet_bufsize;
1493 int pktlen = status->wake_packet_length;
f444eb10 1494 const u8 *pktdata = status->wake_packet;
86e8e657 1495 const struct ieee80211_hdr *hdr = (const void *)pktdata;
f444eb10
JB		 1496 int truncated = pktlen - pktsize;
1497
1498 /* this would be a firmware bug */
1499 if (WARN_ON_ONCE(truncated < 0))
1500 truncated = 0;
1501
1502 if (ieee80211_is_data(hdr->frame_control)) {
1503 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1504 int ivlen = 0, icvlen = 4; /* also FCS */
9b26b500 1505
9b26b500
JB		 1506 pkt = alloc_skb(pktsize, GFP_KERNEL);
1507 if (!pkt)
1508 goto report;
f444eb10 1509
59ae1d12 1510 skb_put_data(pkt, pktdata, hdrlen);
f444eb10
JB		 1511 pktdata += hdrlen;
1512 pktsize -= hdrlen;
1513
1514 if (ieee80211_has_protected(hdr->frame_control)) {
7abc4632
JB		 1515 /*
1516 * This is unlocked and using gtk_i(c)vlen,
1517 * but since everything is under RTNL still
1518 * that's not really a problem - changing
1519 * it would be difficult.
1520 */
f444eb10
JB		 1521 if (is_multicast_ether_addr(hdr->addr1)) {
1522 ivlen = mvm->gtk_ivlen;
1523 icvlen += mvm->gtk_icvlen;
1524 } else {
1525 ivlen = mvm->ptk_ivlen;
1526 icvlen += mvm->ptk_icvlen;
1527 }
1528 }
1529
1530 /* if truncated, FCS/ICV is (partially) gone */
1531 if (truncated >= icvlen) {
1532 icvlen = 0;
1533 truncated -= icvlen;
1534 } else {
1535 icvlen -= truncated;
1536 truncated = 0;
1537 }
1538
1539 pktsize -= ivlen + icvlen;
1540 pktdata += ivlen;
1541
59ae1d12 1542 skb_put_data(pkt, pktdata, pktsize);
f444eb10 1543
9b26b500
JB		 1544 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1545 goto report;
1546 wakeup.packet = pkt->data;
1547 wakeup.packet_present_len = pkt->len;
f444eb10 1548 wakeup.packet_len = pkt->len - truncated;
9b26b500
JB		 1549 wakeup.packet_80211 = false;
1550 } else {
f444eb10
JB		 1551 int fcslen = 4;
1552
1553 if (truncated >= 4) {
1554 truncated -= 4;
1555 fcslen = 0;
1556 } else {
1557 fcslen -= truncated;
1558 truncated = 0;
1559 }
1560 pktsize -= fcslen;
9b26b500
JB		 1561 wakeup.packet = status->wake_packet;
1562 wakeup.packet_present_len = pktsize;
f444eb10 1563 wakeup.packet_len = pktlen - truncated;
9b26b500
JB		 1564 wakeup.packet_80211 = true;
1565 }
1566 }
1567
1568 report:
1569 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1570 kfree_skb(pkt);
7abc4632 1571}
9b26b500 1572
2dc97742 1573static void iwl_mvm_le64_to_aes_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
6d9d32b8 1574{
2dc97742 1575 u64 pn = le64_to_cpu(le_pn);
6d9d32b8 1576
6d9d32b8
JB		 1577 seq->ccmp.pn[0] = pn >> 40;
1578 seq->ccmp.pn[1] = pn >> 32;
1579 seq->ccmp.pn[2] = pn >> 24;
1580 seq->ccmp.pn[3] = pn >> 16;
1581 seq->ccmp.pn[4] = pn >> 8;
1582 seq->ccmp.pn[5] = pn;
1583}
1584
2dc97742
JB		 1585static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
1586 struct ieee80211_key_seq *seq)
1587{
1588 iwl_mvm_le64_to_aes_seq(sc->pn, seq);
1589}
1590
1591static void iwl_mvm_le64_to_tkip_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
1592{
1593 u64 pn = le64_to_cpu(le_pn);
1594
1595 seq->tkip.iv16 = (u16)pn;
1596 seq->tkip.iv32 = (u32)(pn >> 16);
1597}
1598
6d9d32b8
JB		 1599static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
1600 struct ieee80211_key_seq *seq)
1601{
1602 seq->tkip.iv32 = le32_to_cpu(sc->iv32);
1603 seq->tkip.iv16 = le16_to_cpu(sc->iv16);
1604}
1605
4d4cbb9b
JB		 1606static void iwl_mvm_set_key_rx_seq_tids(struct ieee80211_key_conf *key,
1607 struct ieee80211_key_seq *seq)
6d9d32b8
JB		 1608{
1609 int tid;
1610
4d4cbb9b
JB		 1611 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++)
1612 ieee80211_set_key_rx_seq(key, tid, &seq[tid]);
1613}
6d9d32b8 1614
4d4cbb9b
JB		 1615static void iwl_mvm_set_aes_ptk_rx_seq(struct iwl_mvm *mvm,
1616 struct iwl_wowlan_status_data *status,
1617 struct ieee80211_sta *sta,
1618 struct ieee80211_key_conf *key)
1619{
1620 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1621 struct iwl_mvm_key_pn *ptk_pn;
1622 int tid;
6d9d32b8 1623
4d4cbb9b 1624 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.aes.seq);
f5e28eac 1625
4d4cbb9b
JB		 1626 if (!iwl_mvm_has_new_rx_api(mvm))
1627 return;
f5e28eac 1628
f5e28eac 1629
4d4cbb9b
JB		 1630 rcu_read_lock();
1631 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
1632 if (WARN_ON(!ptk_pn)) {
efa40c7e 1633 rcu_read_unlock();
4d4cbb9b
JB		 1634 return;
1635 }
f5e28eac 1636
4d4cbb9b
JB		 1637 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1638 int i;
1639
1640 for (i = 1; i < mvm->trans->num_rx_queues; i++)
1641 memcpy(ptk_pn->q[i].pn[tid],
1642 status->ptk.aes.seq[tid].ccmp.pn,
1643 IEEE80211_CCMP_PN_LEN);
6d9d32b8 1644 }
4d4cbb9b 1645 rcu_read_unlock();
6d9d32b8
JB		 1646}
1647
4d4cbb9b
JB		 1648static void iwl_mvm_convert_key_counters(struct iwl_wowlan_status_data *status,
1649 union iwl_all_tsc_rsc *sc)
6d9d32b8 1650{
4d4cbb9b 1651 int i;
6d9d32b8 1652
4d4cbb9b
JB		 1653 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
1654 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
6d9d32b8 1655
4d4cbb9b
JB		 1656 /* GTK RX counters */
1657 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1658 iwl_mvm_tkip_sc_to_seq(&sc->tkip.multicast_rsc[i],
2dc97742 1659 &status->gtk_seq[0].tkip.seq[i]);
4d4cbb9b 1660 iwl_mvm_aes_sc_to_seq(&sc->aes.multicast_rsc[i],
2dc97742 1661 &status->gtk_seq[0].aes.seq[i]);
4d4cbb9b 1662 }
2dc97742
JB		 1663 status->gtk_seq[0].valid = true;
1664 status->gtk_seq[0].key_id = -1;
6d9d32b8 1665
4d4cbb9b
JB		 1666 /* PTK TX counter */
1667 status->ptk.tkip.tx_pn = (u64)le16_to_cpu(sc->tkip.tsc.iv16) |
1668 ((u64)le32_to_cpu(sc->tkip.tsc.iv32) << 16);
1669 status->ptk.aes.tx_pn = le64_to_cpu(sc->aes.tsc.pn);
1670
1671 /* PTK RX counters */
1672 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1673 iwl_mvm_tkip_sc_to_seq(&sc->tkip.unicast_rsc[i],
1674 &status->ptk.tkip.seq[i]);
1675 iwl_mvm_aes_sc_to_seq(&sc->aes.unicast_rsc[i],
1676 &status->ptk.aes.seq[i]);
6d9d32b8
JB		 1677 }
1678}
1679
2dc97742
JB		 1680static void
1681iwl_mvm_convert_key_counters_v5_gtk_seq(struct iwl_wowlan_status_data *status,
1682 struct iwl_wowlan_all_rsc_tsc_v5 *sc,
1683 unsigned int idx, unsigned int key_id)
6d9d32b8 1684{
2dc97742
JB		 1685 int tid;
1686
1687 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1688 iwl_mvm_le64_to_tkip_seq(sc->mcast_rsc[idx][tid],
1689 &status->gtk_seq[idx].tkip.seq[tid]);
1690 iwl_mvm_le64_to_aes_seq(sc->mcast_rsc[idx][tid],
1691 &status->gtk_seq[idx].aes.seq[tid]);
1692 }
1693
1694 status->gtk_seq[idx].valid = true;
1695 status->gtk_seq[idx].key_id = key_id;
1696}
1697
1698static void
1699iwl_mvm_convert_key_counters_v5(struct iwl_wowlan_status_data *status,
1700 struct iwl_wowlan_all_rsc_tsc_v5 *sc)
1701{
1702 int i, tid;
1703
1704 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
1705 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
1706 BUILD_BUG_ON(ARRAY_SIZE(sc->mcast_rsc) != ARRAY_SIZE(status->gtk_seq));
1707
1708 /* GTK RX counters */
1709 for (i = 0; i < ARRAY_SIZE(sc->mcast_key_id_map); i++) {
1710 u8 entry = sc->mcast_key_id_map[i];
1711
1712 if (entry < ARRAY_SIZE(sc->mcast_rsc))
1713 iwl_mvm_convert_key_counters_v5_gtk_seq(status, sc,
1714 entry, i);
1715 }
87209b7f 1716
2dc97742
JB		 1717 /* PTK TX counters not needed, assigned in device */
1718
1719 /* PTK RX counters */
1720 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1721 iwl_mvm_le64_to_tkip_seq(sc->ucast_rsc[tid],
1722 &status->ptk.tkip.seq[tid]);
1723 iwl_mvm_le64_to_aes_seq(sc->ucast_rsc[tid],
1724 &status->ptk.aes.seq[tid]);
1725 }
1726}
1727
1728static void iwl_mvm_set_key_rx_seq_idx(struct ieee80211_key_conf *key,
1729 struct iwl_wowlan_status_data *status,
1730 int idx)
1731{
6d9d32b8
JB		 1732 switch (key->cipher) {
1733 case WLAN_CIPHER_SUITE_CCMP:
c7f996eb
JB		 1734 case WLAN_CIPHER_SUITE_GCMP:
1735 case WLAN_CIPHER_SUITE_GCMP_256:
2dc97742 1736 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].aes.seq);
6d9d32b8
JB		 1737 break;
1738 case WLAN_CIPHER_SUITE_TKIP:
2dc97742 1739 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].tkip.seq);
6d9d32b8
JB		 1740 break;
1741 default:
1742 WARN_ON(1);
1743 }
1744}
1745
2dc97742
JB		 1746static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key,
1747 struct iwl_wowlan_status_data *status,
1748 bool installed)
1749{
1750 int i;
1751
1752 for (i = 0; i < ARRAY_SIZE(status->gtk_seq); i++) {
1753 if (!status->gtk_seq[i].valid)
1754 continue;
1755
1756 /* Handle the case where we know the key ID */
1757 if (status->gtk_seq[i].key_id == key->keyidx) {
1758 s8 new_key_id = -1;
1759
1760 if (status->num_of_gtk_rekeys)
1761 new_key_id = status->gtk.flags &
1762 IWL_WOWLAN_GTK_IDX_MASK;
1763
1764 /* Don't install a new key's value to an old key */
1765 if (new_key_id != key->keyidx)
1766 iwl_mvm_set_key_rx_seq_idx(key, status, i);
1767 continue;
1768 }
1769
1770 /* handle the case where we didn't, last key only */
1771 if (status->gtk_seq[i].key_id == -1 &&
1772 (!status->num_of_gtk_rekeys || installed))
1773 iwl_mvm_set_key_rx_seq_idx(key, status, i);
1774 }
1775}
1776
6d9d32b8 1777struct iwl_mvm_d3_gtk_iter_data {
f5e28eac 1778 struct iwl_mvm *mvm;
4d4cbb9b 1779 struct iwl_wowlan_status_data *status;
6d9d32b8
JB		 1780 void *last_gtk;
1781 u32 cipher;
1782 bool find_phase, unhandled_cipher;
1783 int num_keys;
1784};
1785
59fd4bf6 1786static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
6d9d32b8
JB		 1787 struct ieee80211_vif *vif,
1788 struct ieee80211_sta *sta,
1789 struct ieee80211_key_conf *key,
1790 void *_data)
1791{
1792 struct iwl_mvm_d3_gtk_iter_data *data = _data;
4d4cbb9b 1793 struct iwl_wowlan_status_data *status = data->status;
6d9d32b8
JB		 1794
1795 if (data->unhandled_cipher)
1796 return;
1797
1798 switch (key->cipher) {
1799 case WLAN_CIPHER_SUITE_WEP40:
1800 case WLAN_CIPHER_SUITE_WEP104:
1801 /* ignore WEP completely, nothing to do */
1802 return;
1803 case WLAN_CIPHER_SUITE_CCMP:
c7f996eb
JB		 1804 case WLAN_CIPHER_SUITE_GCMP:
1805 case WLAN_CIPHER_SUITE_GCMP_256:
6d9d32b8
JB		 1806 case WLAN_CIPHER_SUITE_TKIP:
1807 /* we support these */
1808 break;
1809 default:
1810 /* everything else (even CMAC for MFP) - disconnect from AP */
1811 data->unhandled_cipher = true;
1812 return;
1813 }
1814
1815 data->num_keys++;
1816
1817 /*
1818 * pairwise key - update sequence counters only;
1819 * note that this assumes no TDLS sessions are active
1820 */
1821 if (sta) {
6d9d32b8
JB		 1822 if (data->find_phase)
1823 return;
1824
1825 switch (key->cipher) {
1826 case WLAN_CIPHER_SUITE_CCMP:
c7f996eb
JB		 1827 case WLAN_CIPHER_SUITE_GCMP:
1828 case WLAN_CIPHER_SUITE_GCMP_256:
4d4cbb9b
JB		 1829 atomic64_set(&key->tx_pn, status->ptk.aes.tx_pn);
1830 iwl_mvm_set_aes_ptk_rx_seq(data->mvm, status, sta, key);
6d9d32b8
JB		 1831 break;
1832 case WLAN_CIPHER_SUITE_TKIP:
4d4cbb9b
JB		 1833 atomic64_set(&key->tx_pn, status->ptk.tkip.tx_pn);
1834 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.tkip.seq);
6d9d32b8
JB		 1835 break;
1836 }
6d9d32b8
JB		 1837
1838 /* that's it for this key */
1839 return;
1840 }
1841
1842 if (data->find_phase) {
1843 data->last_gtk = key;
1844 data->cipher = key->cipher;
1845 return;
1846 }
1847
1848 if (data->status->num_of_gtk_rekeys)
1849 ieee80211_remove_key(key);
87209b7f
JB		 1850
1851 if (data->last_gtk == key)
2dc97742 1852 iwl_mvm_set_key_rx_seq(key, data->status, false);
6d9d32b8
JB		 1853}
1854
1855static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
1856 struct ieee80211_vif *vif,
4d4cbb9b 1857 struct iwl_wowlan_status_data *status)
6d9d32b8
JB		 1858{
1859 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1860 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
f5e28eac 1861 .mvm = mvm,
6d9d32b8
JB		 1862 .status = status,
1863 };
431591cc
EP		 1864 u32 disconnection_reasons =
1865 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1866 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
6d9d32b8
JB		 1867
1868 if (!status || !vif->bss_conf.bssid)
1869 return false;
1870
4d4cbb9b 1871 if (status->wakeup_reasons & disconnection_reasons)
431591cc
EP		 1872 return false;
1873
6d9d32b8
JB		 1874 /* find last GTK that we used initially, if any */
1875 gtkdata.find_phase = true;
1876 ieee80211_iter_keys(mvm->hw, vif,
59fd4bf6 1877 iwl_mvm_d3_update_keys, &gtkdata);
6d9d32b8
JB		 1878 /* not trying to keep connections with MFP/unhandled ciphers */
1879 if (gtkdata.unhandled_cipher)
1880 return false;
1881 if (!gtkdata.num_keys)
cfa88893 1882 goto out;
6d9d32b8
JB		 1883 if (!gtkdata.last_gtk)
1884 return false;
1885
1886 /*
1887 * invalidate all other GTKs that might still exist and update
1888 * the one that we used
1889 */
1890 gtkdata.find_phase = false;
1891 ieee80211_iter_keys(mvm->hw, vif,
59fd4bf6 1892 iwl_mvm_d3_update_keys, &gtkdata);
6d9d32b8 1893
19d9fa7a 1894 IWL_DEBUG_WOWLAN(mvm, "num of GTK rekeying %d\n",
4d4cbb9b 1895 status->num_of_gtk_rekeys);
6d9d32b8
JB		 1896 if (status->num_of_gtk_rekeys) {
1897 struct ieee80211_key_conf *key;
1898 struct {
1899 struct ieee80211_key_conf conf;
1900 u8 key[32];
1901 } conf = {
1902 .conf.cipher = gtkdata.cipher,
2afa6a73 1903 .conf.keyidx =
4d4cbb9b 1904 status->gtk.flags & IWL_WOWLAN_GTK_IDX_MASK,
6d9d32b8 1905 };
11a0513c 1906 __be64 replay_ctr;
6d9d32b8 1907
19d9fa7a
SS		 1908 IWL_DEBUG_WOWLAN(mvm,
1909 "Received from FW GTK cipher %d, key index %d\n",
1910 conf.conf.cipher, conf.conf.keyidx);
4d4cbb9b
JB		 1911
1912 BUILD_BUG_ON(WLAN_KEY_LEN_CCMP != WLAN_KEY_LEN_GCMP);
1913 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_CCMP);
1914 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_GCMP_256);
1915 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_TKIP);
1916 BUILD_BUG_ON(sizeof(conf.key) < sizeof(status->gtk.key));
1917
1918 memcpy(conf.conf.key, status->gtk.key, sizeof(status->gtk.key));
1919
6d9d32b8
JB		 1920 switch (gtkdata.cipher) {
1921 case WLAN_CIPHER_SUITE_CCMP:
c7f996eb 1922 case WLAN_CIPHER_SUITE_GCMP:
6d9d32b8 1923 conf.conf.keylen = WLAN_KEY_LEN_CCMP;
6d9d32b8 1924 break;
c7f996eb 1925 case WLAN_CIPHER_SUITE_GCMP_256:
c7f996eb 1926 conf.conf.keylen = WLAN_KEY_LEN_GCMP_256;
c7f996eb 1927 break;
6d9d32b8
JB		 1928 case WLAN_CIPHER_SUITE_TKIP:
1929 conf.conf.keylen = WLAN_KEY_LEN_TKIP;
6d9d32b8
JB		 1930 break;
1931 }
1932
1933 key = ieee80211_gtk_rekey_add(vif, &conf.conf);
1934 if (IS_ERR(key))
1935 return false;
2dc97742 1936 iwl_mvm_set_key_rx_seq(key, status, true);
6d9d32b8 1937
4d4cbb9b 1938 replay_ctr = cpu_to_be64(status->replay_ctr);
11a0513c 1939
6d9d32b8
JB		 1940 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid,
1941 (void *)&replay_ctr, GFP_KERNEL);
1942 }
1943
cfa88893 1944out:
5b16565a
NG		 1945 if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
1946 WOWLAN_GET_STATUSES, 0) < 10) {
1947 mvmvif->seqno_valid = true;
1948 /* +0x10 because the set API expects next-to-use, not last-used */
4d4cbb9b 1949 mvmvif->seqno = status->non_qos_seq_ctr + 0x10;
5b16565a 1950 }
6d9d32b8
JB		 1951
1952 return true;
1953}
1954
32fed470
NG		 1955static void iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data *status,
1956 struct iwl_wowlan_gtk_status_v2 *data)
1957{
1958 BUILD_BUG_ON(sizeof(status->gtk.key) < sizeof(data->key));
1959 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
1960 sizeof(data->tkip_mic_key) >
1961 sizeof(status->gtk.key));
1962
1963 status->gtk.len = data->key_len;
1964 status->gtk.flags = data->key_flags;
1965
1966 memcpy(status->gtk.key, data->key, sizeof(data->key));
1967
1968 /* if it's as long as the TKIP encryption key, copy MIC key */
1969 if (status->gtk.len == NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY)
1970 memcpy(status->gtk.key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
1971 data->tkip_mic_key, sizeof(data->tkip_mic_key));
1972}
1973
1974static void iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data *status,
1975 struct iwl_wowlan_gtk_status_v3 *data)
1976{
1977 /* The parts we need are identical in v2 and v3 */
1978#define CHECK(_f) do { \
1979 BUILD_BUG_ON(offsetof(struct iwl_wowlan_gtk_status_v2, _f) != \
1980 offsetof(struct iwl_wowlan_gtk_status_v3, _f)); \
1981 BUILD_BUG_ON(offsetofend(struct iwl_wowlan_gtk_status_v2, _f) !=\
1982 offsetofend(struct iwl_wowlan_gtk_status_v3, _f)); \
1983} while (0)
1984
1985 CHECK(key);
1986 CHECK(key_len);
1987 CHECK(key_flags);
1988 CHECK(tkip_mic_key);
1989#undef CHECK
1990
1991 iwl_mvm_convert_gtk_v2(status, (void *)data);
1992}
1993
1994static void iwl_mvm_convert_igtk(struct iwl_wowlan_status_data *status,
1995 struct iwl_wowlan_igtk_status *data)
1996{
1997 const u8 *ipn = data->ipn;
1998
1999 BUILD_BUG_ON(sizeof(status->igtk.key) < sizeof(data->key));
2000
2001 status->igtk.len = data->key_len;
2002 status->igtk.flags = data->key_flags;
2003
2004 memcpy(status->igtk.key, data->key, sizeof(data->key));
2005
2006 status->igtk.ipn = ((u64)ipn[5] << 0) |
2007 ((u64)ipn[4] << 8) |
2008 ((u64)ipn[3] << 16) |
2009 ((u64)ipn[2] << 24) |
2010 ((u64)ipn[1] << 32) |
2011 ((u64)ipn[0] << 40);
2012}
2013
2014static void iwl_mvm_parse_wowlan_info_notif(struct iwl_mvm *mvm,
2015 struct iwl_wowlan_info_notif *data,
2016 struct iwl_wowlan_status_data *status,
2017 u32 len)
2018{
2019 u32 i;
2020
905d50dd
HD		 2021 if (!data) {
2022 IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n");
2023 status = NULL;
2024 return;
2025 }
2026
32fed470
NG		 2027 if (len < sizeof(*data)) {
2028 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n");
2029 status = NULL;
2030 return;
2031 }
2032
2033 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc);
2034 iwl_mvm_convert_gtk_v3(status, &data->gtk[0]);
2035 iwl_mvm_convert_igtk(status, &data->igtk[0]);
2036
2037 status->replay_ctr = le64_to_cpu(data->replay_ctr);
2038 status->pattern_number = le16_to_cpu(data->pattern_number);
2039 for (i = 0; i < IWL_MAX_TID_COUNT; i++)
2040 status->qos_seq_ctr[i] =
2041 le16_to_cpu(data->qos_seq_ctr[i]);
2042 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons);
2043 status->num_of_gtk_rekeys =
2044 le32_to_cpu(data->num_of_gtk_rekeys);
2045 status->received_beacons = le32_to_cpu(data->received_beacons);
2046 status->tid_tear_down = data->tid_tear_down;
2047}
2048
bc68163c
JB		 2049/* Occasionally, templates would be nice. This is one of those times ... */
2050#define iwl_mvm_parse_wowlan_status_common(_ver) \
4d4cbb9b 2051static struct iwl_wowlan_status_data * \
bc68163c 2052iwl_mvm_parse_wowlan_status_common_ ## _ver(struct iwl_mvm *mvm, \
4d4cbb9b
JB		 2053 struct iwl_wowlan_status_ ##_ver *data,\
2054 int len) \
bc68163c 2055{ \
4d4cbb9b
JB		 2056 struct iwl_wowlan_status_data *status; \
2057 int data_size, i; \
bc68163c
JB		 2058 \
2059 if (len < sizeof(*data)) { \
2060 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \
537b76d2 2061 return NULL; \
bc68163c
JB		 2062 } \
2063 \
2064 data_size = ALIGN(le32_to_cpu(data->wake_packet_bufsize), 4); \
2065 if (len != sizeof(*data) + data_size) { \
2066 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \
537b76d2 2067 return NULL; \
bc68163c
JB		 2068 } \
2069 \
219ed58f 2070 status = kzalloc(sizeof(*status), GFP_KERNEL); \
bc68163c 2071 if (!status) \
537b76d2 2072 return NULL; \
bc68163c
JB		 2073 \
2074 /* copy all the common fields */ \
4d4cbb9b
JB		 2075 status->replay_ctr = le64_to_cpu(data->replay_ctr); \
2076 status->pattern_number = le16_to_cpu(data->pattern_number); \
2077 status->non_qos_seq_ctr = le16_to_cpu(data->non_qos_seq_ctr); \
2078 for (i = 0; i < 8; i++) \
2079 status->qos_seq_ctr[i] = \
2080 le16_to_cpu(data->qos_seq_ctr[i]); \
2081 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); \
2082 status->num_of_gtk_rekeys = \
2083 le32_to_cpu(data->num_of_gtk_rekeys); \
2084 status->received_beacons = le32_to_cpu(data->received_beacons); \
2085 status->wake_packet_length = \
2086 le32_to_cpu(data->wake_packet_length); \
2087 status->wake_packet_bufsize = \
2088 le32_to_cpu(data->wake_packet_bufsize); \
219ed58f
HD		 2089 if (status->wake_packet_bufsize) { \
2090 status->wake_packet = \
2091 kmemdup(data->wake_packet, \
2092 status->wake_packet_bufsize, \
2093 GFP_KERNEL); \
2094 if (!status->wake_packet) { \
2095 kfree(status); \
2096 return NULL; \
2097 } \
2098 } else { \
2099 status->wake_packet = NULL; \
2100 } \
bc68163c
JB		 2101 \
2102 return status; \
2103}
2104
2105iwl_mvm_parse_wowlan_status_common(v6)
2106iwl_mvm_parse_wowlan_status_common(v7)
2107iwl_mvm_parse_wowlan_status_common(v9)
2dc97742 2108iwl_mvm_parse_wowlan_status_common(v12)
bc68163c 2109
4d4cbb9b 2110static struct iwl_wowlan_status_data *
5c157941 2111iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id)
2afa6a73 2112{
4d4cbb9b 2113 struct iwl_wowlan_status_data *status;
5c157941
EG		 2114 struct iwl_wowlan_get_status_cmd get_status_cmd = {
2115 .sta_id = cpu_to_le32(sta_id),
2116 };
2afa6a73
LC		 2117 struct iwl_host_cmd cmd = {
2118 .id = WOWLAN_GET_STATUSES,
2119 .flags = CMD_WANT_SKB,
5c157941
EG		 2120 .data = { &get_status_cmd, },
2121 .len = { sizeof(get_status_cmd), },
2afa6a73 2122 };
bc68163c 2123 int ret, len;
250380c9 2124 u8 notif_ver;
971cbe50 2125 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id,
5c157941
EG		 2126 IWL_FW_CMD_VER_UNKNOWN);
2127
2128 if (cmd_ver == IWL_FW_CMD_VER_UNKNOWN)
2129 cmd.len[0] = 0;
2afa6a73
LC		 2130
2131 lockdep_assert_held(&mvm->mutex);
2132
2133 ret = iwl_mvm_send_cmd(mvm, &cmd);
2134 if (ret) {
2135 IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret);
2136 return ERR_PTR(ret);
2137 }
2138
250380c9 2139 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
bc68163c
JB		 2140
2141 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */
d65ab7c0
EG		 2142 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
2143 WOWLAN_GET_STATUSES, 0);
2144 if (!notif_ver)
2145 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,
2146 WOWLAN_GET_STATUSES, 7);
bc68163c 2147
2afa6a73
LC		 2148 if (!fw_has_api(&mvm->fw->ucode_capa,
2149 IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL)) {
2150 struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data;
2afa6a73 2151
4d4cbb9b 2152 status = iwl_mvm_parse_wowlan_status_common_v6(mvm, v6, len);
537b76d2 2153 if (!status)
2afa6a73
LC		 2154 goto out_free_resp;
2155
2156 BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) >
4d4cbb9b
JB		 2157 sizeof(status->gtk.key));
2158 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2159 sizeof(v6->gtk.tkip_mic_key) >
2160 sizeof(status->gtk.key));
2afa6a73
LC		 2161
2162 /* copy GTK info to the right place */
4d4cbb9b 2163 memcpy(status->gtk.key, v6->gtk.decrypt_key,
2afa6a73 2164 sizeof(v6->gtk.decrypt_key));
4d4cbb9b
JB		 2165 memcpy(status->gtk.key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2166 v6->gtk.tkip_mic_key,
2afa6a73 2167 sizeof(v6->gtk.tkip_mic_key));
4d4cbb9b
JB		 2168
2169 iwl_mvm_convert_key_counters(status, &v6->gtk.rsc.all_tsc_rsc);
2afa6a73
LC		 2170
2171 /* hardcode the key length to 16 since v6 only supports 16 */
4d4cbb9b 2172 status->gtk.len = 16;
2afa6a73
LC		 2173
2174 /*
2175 * The key index only uses 2 bits (values 0 to 3) and
2176 * we always set bit 7 which means this is the
2177 * currently used key.
2178 */
4d4cbb9b 2179 status->gtk.flags = v6->gtk.key_index | BIT(7);
bc68163c
JB		 2180 } else if (notif_ver == 7) {
2181 struct iwl_wowlan_status_v7 *v7 = (void *)cmd.resp_pkt->data;
2afa6a73 2182
4d4cbb9b 2183 status = iwl_mvm_parse_wowlan_status_common_v7(mvm, v7, len);
537b76d2 2184 if (!status)
bc68163c 2185 goto out_free_resp;
250380c9 2186
4d4cbb9b 2187 iwl_mvm_convert_key_counters(status, &v7->gtk[0].rsc.all_tsc_rsc);
2dc97742 2188 iwl_mvm_convert_gtk_v2(status, &v7->gtk[0]);
4d4cbb9b 2189 iwl_mvm_convert_igtk(status, &v7->igtk[0]);
058b94dc 2190 } else if (notif_ver == 9 || notif_ver == 10 || notif_ver == 11) {
bc68163c 2191 struct iwl_wowlan_status_v9 *v9 = (void *)cmd.resp_pkt->data;
250380c9 2192
058b94dc
GG		 2193 /* these three command versions have same layout and size, the
2194 * difference is only in a few not used (reserved) fields.
2195 */
4d4cbb9b 2196 status = iwl_mvm_parse_wowlan_status_common_v9(mvm, v9, len);
537b76d2 2197 if (!status)
bc68163c 2198 goto out_free_resp;
2afa6a73 2199
4d4cbb9b 2200 iwl_mvm_convert_key_counters(status, &v9->gtk[0].rsc.all_tsc_rsc);
2dc97742 2201 iwl_mvm_convert_gtk_v2(status, &v9->gtk[0]);
4d4cbb9b 2202 iwl_mvm_convert_igtk(status, &v9->igtk[0]);
2afa6a73 2203
bc68163c 2204 status->tid_tear_down = v9->tid_tear_down;
2dc97742
JB		 2205 } else if (notif_ver == 12) {
2206 struct iwl_wowlan_status_v12 *v12 = (void *)cmd.resp_pkt->data;
2207
2208 status = iwl_mvm_parse_wowlan_status_common_v12(mvm, v12, len);
537b76d2 2209 if (!status)
2dc97742
JB		 2210 goto out_free_resp;
2211
2212 iwl_mvm_convert_key_counters_v5(status, &v12->gtk[0].sc);
2213 iwl_mvm_convert_gtk_v3(status, &v12->gtk[0]);
2214 iwl_mvm_convert_igtk(status, &v12->igtk[0]);
2215
2216 status->tid_tear_down = v12->tid_tear_down;
bc68163c
JB		 2217 } else {
2218 IWL_ERR(mvm,
2219 "Firmware advertises unknown WoWLAN status response %d!\n",
2220 notif_ver);
537b76d2 2221 status = NULL;
2afa6a73
LC		 2222 }
2223
2afa6a73
LC		 2224out_free_resp:
2225 iwl_free_resp(&cmd);
2226 return status;
2227}
2228
ec12f457
LC		 2229/* releases the MVM mutex */
2230static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
4da46a06
HD		 2231 struct ieee80211_vif *vif,
2232 struct iwl_wowlan_status_data *status)
ec12f457 2233{
ec12f457
LC		 2234 int i;
2235 bool keep;
ec12f457
LC		 2236 struct iwl_mvm_sta *mvm_ap_sta;
2237
537b76d2 2238 if (!status)
ec12f457 2239 goto out_unlock;
3afec639 2240
19d9fa7a 2241 IWL_DEBUG_WOWLAN(mvm, "wakeup reason 0x%x\n",
4d4cbb9b 2242 status->wakeup_reasons);
7abc4632 2243
6d9d32b8 2244 /* still at hard-coded place 0 for D3 image */
13303c0f
SS		 2245 mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, 0);
2246 if (!mvm_ap_sta)
4da46a06 2247 goto out_unlock;
6d9d32b8 2248
6d9d32b8 2249 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
4d4cbb9b 2250 u16 seq = status->qos_seq_ctr[i];
6d9d32b8
JB		 2251 /* firmware stores last-used value, we store next value */
2252 seq += 0x10;
2253 mvm_ap_sta->tid_data[i].seq_number = seq;
2254 }
2255
286ca8eb 2256 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) {
ba7136f3
AM		 2257 i = mvm->offload_tid;
2258 iwl_trans_set_q_ptrs(mvm->trans,
2259 mvm_ap_sta->tid_data[i].txq_id,
2260 mvm_ap_sta->tid_data[i].seq_number >> 4);
2261 }
2262
7abc4632
JB		 2263 /* now we have all the data we need, unlock to avoid mac80211 issues */
2264 mutex_unlock(&mvm->mutex);
2265
4d4cbb9b 2266 iwl_mvm_report_wakeup_reasons(mvm, vif, status);
6d9d32b8 2267
4d4cbb9b 2268 keep = iwl_mvm_setup_connection_keep(mvm, vif, status);
6d9d32b8 2269
6d9d32b8 2270 return keep;
7abc4632 2271
ec12f457 2272out_unlock:
7abc4632 2273 mutex_unlock(&mvm->mutex);
6d9d32b8 2274 return false;
9b26b500
JB		 2275}
2276
e4fe5d4b
IP		 2277#define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \
2278 IWL_SCAN_MAX_PROFILES)
2279
5ac54afd 2280struct iwl_mvm_nd_results {
8ed4e659 2281 u32 matched_profiles;
e4fe5d4b 2282 u8 matches[ND_QUERY_BUF_LEN];
8ed4e659
LC		 2283};
2284
2285static int
2286iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
5ac54afd 2287 struct iwl_mvm_nd_results *results)
b04998f3 2288{
5ac54afd 2289 struct iwl_scan_offload_match_info *query;
b04998f3
LC		 2290 struct iwl_host_cmd cmd = {
2291 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD,
2292 .flags = CMD_WANT_SKB,
2293 };
2294 int ret, len;
e4fe5d4b 2295 size_t query_len, matches_len;
5d1234ba 2296 int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw);
b04998f3
LC		 2297
2298 ret = iwl_mvm_send_cmd(mvm, &cmd);
2299 if (ret) {
2300 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret);
8ed4e659 2301 return ret;
b04998f3
LC		 2302 }
2303
e4fe5d4b
IP		 2304 if (fw_has_api(&mvm->fw->ucode_capa,
2305 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
5ac54afd 2306 query_len = sizeof(struct iwl_scan_offload_match_info);
e4fe5d4b 2307 matches_len = sizeof(struct iwl_scan_offload_profile_match) *
5d1234ba 2308 max_profiles;
e4fe5d4b
IP		 2309 } else {
2310 query_len = sizeof(struct iwl_scan_offload_profiles_query_v1);
2311 matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) *
5d1234ba 2312 max_profiles;
e4fe5d4b
IP		 2313 }
2314
b04998f3 2315 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
e4fe5d4b 2316 if (len < query_len) {
b04998f3 2317 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");
8ed4e659 2318 ret = -EIO;
b04998f3
LC		 2319 goto out_free_resp;
2320 }
2321
2322 query = (void *)cmd.resp_pkt->data;
2323
8ed4e659 2324 results->matched_profiles = le32_to_cpu(query->matched_profiles);
e4fe5d4b 2325 memcpy(results->matches, query->matches, matches_len);
b04998f3 2326
6bbd5521 2327#ifdef CONFIG_IWLWIFI_DEBUGFS
484b3d13
LC		 2328 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done);
2329#endif
2330
b04998f3
LC		 2331out_free_resp:
2332 iwl_free_resp(&cmd);
2333 return ret;
2334}
2335
e4fe5d4b 2336static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm,
5ac54afd 2337 struct iwl_mvm_nd_results *results,
e4fe5d4b
IP		 2338 int idx)
2339{
2340 int n_chans = 0, i;
2341
2342 if (fw_has_api(&mvm->fw->ucode_capa,
2343 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2344 struct iwl_scan_offload_profile_match *matches =
5ac54afd 2345 (void *)results->matches;
e4fe5d4b
IP		 2346
2347 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++)
2348 n_chans += hweight8(matches[idx].matching_channels[i]);
2349 } else {
2350 struct iwl_scan_offload_profile_match_v1 *matches =
5ac54afd 2351 (void *)results->matches;
e4fe5d4b
IP		 2352
2353 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++)
2354 n_chans += hweight8(matches[idx].matching_channels[i]);
2355 }
2356
2357 return n_chans;
2358}
2359
2360static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm,
5ac54afd 2361 struct iwl_mvm_nd_results *results,
e4fe5d4b
IP		 2362 struct cfg80211_wowlan_nd_match *match,
2363 int idx)
2364{
2365 int i;
2366
2367 if (fw_has_api(&mvm->fw->ucode_capa,
2368 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2369 struct iwl_scan_offload_profile_match *matches =
5ac54afd 2370 (void *)results->matches;
e4fe5d4b
IP		 2371
2372 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++)
2373 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2374 match->channels[match->n_channels++] =
2375 mvm->nd_channels[i]->center_freq;
2376 } else {
2377 struct iwl_scan_offload_profile_match_v1 *matches =
5ac54afd 2378 (void *)results->matches;
e4fe5d4b
IP		 2379
2380 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++)
2381 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2382 match->channels[match->n_channels++] =
2383 mvm->nd_channels[i]->center_freq;
2384 }
2385}
2386
5ac54afd
IP		 2387/**
2388 * enum iwl_d3_notif - d3 notifications
2389 * @IWL_D3_NOTIF_WOWLAN_INFO: WOWLAN_INFO_NOTIF was received
2390 * @IWL_D3_NOTIF_WOWLAN_WAKE_PKT: WOWLAN_WAKE_PKT_NOTIF was received
2391 * @IWL_D3_NOTIF_PROT_OFFLOAD: PROT_OFFLOAD_NOTIF was received
2392 * @IWL_D3_ND_MATCH_INFO: OFFLOAD_MATCH_INFO_NOTIF was received
2393 * @IWL_D3_NOTIF_D3_END_NOTIF: D3_END_NOTIF was received
2394 */
2395enum iwl_d3_notif {
2396 IWL_D3_NOTIF_WOWLAN_INFO = BIT(0),
2397 IWL_D3_NOTIF_WOWLAN_WAKE_PKT = BIT(1),
2398 IWL_D3_NOTIF_PROT_OFFLOAD = BIT(2),
2399 IWL_D3_ND_MATCH_INFO = BIT(3),
2400 IWL_D3_NOTIF_D3_END_NOTIF = BIT(4)
2401};
2402
2403/* manage d3 resume data */
2404struct iwl_d3_data {
2405 struct iwl_wowlan_status_data *status;
2406 bool test;
2407 u32 d3_end_flags;
2408 u32 notif_expected; /* bitmap - see &enum iwl_d3_notif */
2409 u32 notif_received; /* bitmap - see &enum iwl_d3_notif */
2410 struct iwl_mvm_nd_results *nd_results;
2411 bool nd_results_valid;
2412};
2413
2021a89d 2414static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
4da46a06 2415 struct ieee80211_vif *vif,
5ac54afd 2416 struct iwl_d3_data *d3_data)
2021a89d 2417{
d9718da8 2418 struct cfg80211_wowlan_nd_info *net_detect = NULL;
2021a89d
LC		 2419 struct cfg80211_wowlan_wakeup wakeup = {
2420 .pattern_idx = -1,
2421 };
2422 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
d9718da8 2423 unsigned long matched_profiles;
2021a89d 2424 u32 reasons = 0;
e4fe5d4b 2425 int i, n_matches, ret;
2021a89d 2426
5ac54afd
IP		 2427 if (WARN_ON(!d3_data || !d3_data->status))
2428 goto out;
4da46a06 2429
5ac54afd 2430 reasons = d3_data->status->wakeup_reasons;
2021a89d
LC		 2431
2432 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
2433 wakeup.rfkill_release = true;
2434
b04998f3
LC		 2435 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS)
2436 goto out;
2437
5ac54afd
IP		 2438 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
2439 WOWLAN_INFO_NOTIFICATION, 0)) {
2440 IWL_INFO(mvm, "Query FW for ND results\n");
2441 ret = iwl_mvm_netdetect_query_results(mvm, d3_data->nd_results);
2442
2443 } else {
2444 IWL_INFO(mvm, "Notification based ND results\n");
2445 ret = d3_data->nd_results_valid ? 0 : -1;
2446 }
2447
2448 if (ret || !d3_data->nd_results->matched_profiles) {
2021a89d 2449 wakeup_report = NULL;
b04998f3 2450 goto out;
2021a89d
LC		 2451 }
2452
5ac54afd 2453 matched_profiles = d3_data->nd_results->matched_profiles;
d9718da8
LC		 2454 if (mvm->n_nd_match_sets) {
2455 n_matches = hweight_long(matched_profiles);
2456 } else {
2457 IWL_ERR(mvm, "no net detect match information available\n");
2458 n_matches = 0;
2459 }
2460
83ea00d6 2461 net_detect = kzalloc(struct_size(net_detect, matches, n_matches),
d9718da8
LC		 2462 GFP_KERNEL);
2463 if (!net_detect || !n_matches)
2464 goto out_report_nd;
2465
2466 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) {
2467 struct cfg80211_wowlan_nd_match *match;
ae90c2e5 2468 int idx, n_channels = 0;
8ed4e659 2469
5ac54afd
IP		 2470 n_channels = iwl_mvm_query_num_match_chans(mvm,
2471 d3_data->nd_results,
2472 i);
d9718da8 2473
83ea00d6 2474 match = kzalloc(struct_size(match, channels, n_channels),
8ed4e659 2475 GFP_KERNEL);
d9718da8
LC		 2476 if (!match)
2477 goto out_report_nd;
2478
8ed4e659
LC		 2479 net_detect->matches[net_detect->n_matches++] = match;
2480
ae90c2e5
LC		 2481 /* We inverted the order of the SSIDs in the scan
2482 * request, so invert the index here.
2483 */
2484 idx = mvm->n_nd_match_sets - i - 1;
2485 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len;
2486 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid,
d9718da8
LC		 2487 match->ssid.ssid_len);
2488
8ed4e659
LC		 2489 if (mvm->n_nd_channels < n_channels)
2490 continue;
2491
5ac54afd 2492 iwl_mvm_query_set_freqs(mvm, d3_data->nd_results, match, i);
d9718da8
LC		 2493 }
2494
2495out_report_nd:
2496 wakeup.net_detect = net_detect;
b04998f3 2497out:
d9718da8
LC		 2498 iwl_mvm_free_nd(mvm);
2499
2021a89d
LC		 2500 mutex_unlock(&mvm->mutex);
2501 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
d9718da8
LC		 2502
2503 if (net_detect) {
2504 for (i = 0; i < net_detect->n_matches; i++)
2505 kfree(net_detect->matches[i]);
2506 kfree(net_detect);
2507 }
2021a89d
LC		 2508}
2509
6d9d32b8
JB		 2510static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
2511 struct ieee80211_vif *vif)
2512{
2513 /* skip the one we keep connection on */
2514 if (data == vif)
2515 return;
2516
2517 if (vif->type == NL80211_IFTYPE_STATION)
2518 ieee80211_resume_disconnect(vif);
2519}
2520
577ddbee 2521static bool iwl_mvm_rt_status(struct iwl_trans *trans, u32 base, u32 *err_id)
f57d104f 2522{
f57d104f
SM		 2523 struct error_table_start {
2524 /* cf. struct iwl_error_event_table */
2525 u32 valid;
577ddbee 2526 __le32 err_id;
f57d104f
SM		 2527 } err_info;
2528
577ddbee
MG		 2529 if (!base)
2530 return false;
2531
2532 iwl_trans_read_mem_bytes(trans, base,
f57d104f 2533 &err_info, sizeof(err_info));
577ddbee
MG		 2534 if (err_info.valid && err_id)
2535 *err_id = le32_to_cpu(err_info.err_id);
f57d104f 2536
577ddbee
MG		 2537 return !!err_info.valid;
2538}
2539
2540static bool iwl_mvm_check_rt_status(struct iwl_mvm *mvm,
2541 struct ieee80211_vif *vif)
2542{
2543 u32 err_id;
2544
2545 /* check for lmac1 error */
2546 if (iwl_mvm_rt_status(mvm->trans,
2547 mvm->trans->dbg.lmac_error_event_table[0],
2548 &err_id)) {
2549 if (err_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
2550 struct cfg80211_wowlan_wakeup wakeup = {
2551 .rfkill_release = true,
2552 };
2553 ieee80211_report_wowlan_wakeup(vif, &wakeup,
2554 GFP_KERNEL);
2555 }
2556 return true;
f57d104f 2557 }
577ddbee
MG		 2558
2559 /* check if we have lmac2 set and check for error */
2560 if (iwl_mvm_rt_status(mvm->trans,
2561 mvm->trans->dbg.lmac_error_event_table[1], NULL))
2562 return true;
2563
2564 /* check for umac error */
2565 if (iwl_mvm_rt_status(mvm->trans,
2566 mvm->trans->dbg.umac_error_event_table, NULL))
2567 return true;
2568
2569 return false;
f57d104f
SM		 2570}
2571
4da46a06
HD		 2572/*
2573 * This function assumes:
2574 * 1. The mutex is already held.
2575 * 2. The callee functions unlock the mutex.
2576 */
4a0e6422 2577static bool
5ac54afd
IP		 2578iwl_mvm_choose_query_wakeup_reasons(struct iwl_mvm *mvm,
2579 struct ieee80211_vif *vif,
2580 struct iwl_d3_data *d3_data)
4da46a06
HD		 2581{
2582 lockdep_assert_held(&mvm->mutex);
2583
2584 /* if FW uses status notification, status shouldn't be NULL here */
2585 if (!d3_data->status) {
2586 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
650cadb7
GG		 2587 u8 sta_id = mvm->net_detect ? IWL_MVM_INVALID_STA :
2588 mvmvif->deflink.ap_sta_id;
4da46a06 2589
219ed58f 2590 d3_data->status = iwl_mvm_send_wowlan_get_status(mvm, sta_id);
4da46a06
HD		 2591 }
2592
2593 if (mvm->net_detect) {
5ac54afd 2594 iwl_mvm_query_netdetect_reasons(mvm, vif, d3_data);
4da46a06
HD		 2595 } else {
2596 bool keep = iwl_mvm_query_wakeup_reasons(mvm, vif,
2597 d3_data->status);
2598
2599#ifdef CONFIG_IWLWIFI_DEBUGFS
2600 if (keep)
2601 mvm->keep_vif = vif;
2602#endif
2603
4a0e6422 2604 return keep;
4da46a06 2605 }
4a0e6422 2606 return false;
4da46a06
HD		 2607}
2608
219ed58f
HD		 2609#define IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT (IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET | \
2610 IWL_WOWLAN_WAKEUP_BY_PATTERN | \
2611 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN |\
2612 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN_WILDCARD |\
2613 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN |\
2614 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN_WILDCARD)
2615
2616static int iwl_mvm_wowlan_store_wake_pkt(struct iwl_mvm *mvm,
2617 struct iwl_wowlan_wake_pkt_notif *notif,
2618 struct iwl_wowlan_status_data *status,
2619 u32 len)
2620{
2621 u32 data_size, packet_len = le32_to_cpu(notif->wake_packet_length);
2622
2623 if (len < sizeof(*notif)) {
2624 IWL_ERR(mvm, "Invalid WoWLAN wake packet notification!\n");
2625 return -EIO;
2626 }
2627
2628 if (WARN_ON(!status)) {
2629 IWL_ERR(mvm, "Got wake packet notification but wowlan status data is NULL\n");
2630 return -EIO;
2631 }
2632
2633 if (WARN_ON(!(status->wakeup_reasons &
2634 IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT))) {
2635 IWL_ERR(mvm, "Got wakeup packet but wakeup reason is %x\n",
2636 status->wakeup_reasons);
2637 return -EIO;
2638 }
2639
2640 data_size = len - offsetof(struct iwl_wowlan_wake_pkt_notif, wake_packet);
2641
2642 /* data_size got the padding from the notification, remove it. */
2643 if (packet_len < data_size)
2644 data_size = packet_len;
2645
2646 status->wake_packet = kmemdup(notif->wake_packet, data_size,
2647 GFP_ATOMIC);
2648
2649 if (!status->wake_packet)
2650 return -ENOMEM;
2651
2652 status->wake_packet_length = packet_len;
2653 status->wake_packet_bufsize = data_size;
2654
2655 return 0;
2656}
2657
5ac54afd
IP		 2658static void iwl_mvm_nd_match_info_handler(struct iwl_mvm *mvm,
2659 struct iwl_d3_data *d3_data,
2660 struct iwl_scan_offload_match_info *notif,
2661 u32 len)
2662{
2663 struct iwl_wowlan_status_data *status = d3_data->status;
2664 struct ieee80211_vif *vif = iwl_mvm_get_bss_vif(mvm);
2665 struct iwl_mvm_nd_results *results = d3_data->nd_results;
2666 size_t i, matches_len = sizeof(struct iwl_scan_offload_profile_match) *
2667 iwl_umac_scan_get_max_profiles(mvm->fw);
2668
2669 if (IS_ERR_OR_NULL(vif))
2670 return;
2671
2672 if (len < sizeof(struct iwl_scan_offload_match_info)) {
2673 IWL_ERR(mvm, "Invalid scan match info notification\n");
2674 return;
2675 }
2676
2677 if (!mvm->net_detect) {
2678 IWL_ERR(mvm, "Unexpected scan match info notification\n");
2679 return;
2680 }
2681
2682 if (!status || status->wakeup_reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
2683 IWL_ERR(mvm,
2684 "Ignore scan match info notification: no reason\n");
2685 return;
2686 }
2687
2688#ifdef CONFIG_IWLWIFI_DEBUGFS
2689 mvm->last_netdetect_scans = le32_to_cpu(notif->n_scans_done);
2690#endif
2691
2692 results->matched_profiles = le32_to_cpu(notif->matched_profiles);
2693 IWL_INFO(mvm, "number of matched profiles=%u\n",
2694 results->matched_profiles);
2695
2696 if (results->matched_profiles) {
2697 memcpy(results->matches, notif->matches, matches_len);
2698 d3_data->nd_results_valid = TRUE;
2699 }
2700
2701 /* no scan should be active at this point */
2702 mvm->scan_status = 0;
2703 for (i = 0; i < mvm->max_scans; i++)
2704 mvm->scan_uid_status[i] = 0;
2705}
2706
4da46a06
HD		 2707static bool iwl_mvm_wait_d3_notif(struct iwl_notif_wait_data *notif_wait,
2708 struct iwl_rx_packet *pkt, void *data)
2709{
2710 struct iwl_mvm *mvm =
2711 container_of(notif_wait, struct iwl_mvm, notif_wait);
2712 struct iwl_d3_data *d3_data = data;
2713 u32 len;
219ed58f 2714 int ret;
905d50dd
HD		 2715 int wowlan_info_ver = iwl_fw_lookup_notif_ver(mvm->fw,
2716 PROT_OFFLOAD_GROUP,
2717 WOWLAN_INFO_NOTIFICATION,
2718 IWL_FW_CMD_VER_UNKNOWN);
2719
4da46a06
HD		 2720
2721 switch (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) {
2722 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION): {
905d50dd
HD		 2723 struct iwl_wowlan_info_notif *notif;
2724
457d7fb0
JB		 2725 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_INFO) {
2726 /* We might get two notifications due to dual bss */
2727 IWL_DEBUG_WOWLAN(mvm,
2728 "Got additional wowlan info notification\n");
2729 break;
2730 }
2731
905d50dd
HD		 2732 if (wowlan_info_ver < 2) {
2733 struct iwl_wowlan_info_notif_v1 *notif_v1 = (void *)pkt->data;
2734
7a4615b9 2735 notif = kmemdup(notif_v1, sizeof(*notif), GFP_ATOMIC);
905d50dd
HD		 2736 if (!notif)
2737 return false;
2738
2739 notif->tid_tear_down = notif_v1->tid_tear_down;
2740 notif->station_id = notif_v1->station_id;
7a4615b9 2741 memset_after(notif, 0, station_id);
905d50dd
HD		 2742 } else {
2743 notif = (void *)pkt->data;
2744 }
4da46a06 2745
4da46a06
HD		 2746 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_INFO;
2747 len = iwl_rx_packet_payload_len(pkt);
2748 iwl_mvm_parse_wowlan_info_notif(mvm, notif, d3_data->status,
2749 len);
905d50dd
HD		 2750
2751 if (wowlan_info_ver < 2)
2752 kfree(notif);
2753
219ed58f
HD		 2754 if (d3_data->status &&
2755 d3_data->status->wakeup_reasons & IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT)
2756 /* We are supposed to get also wake packet notif */
2757 d3_data->notif_expected |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT;
2758
2759 break;
2760 }
2761 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION): {
2762 struct iwl_wowlan_wake_pkt_notif *notif = (void *)pkt->data;
2763
2764 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_WAKE_PKT) {
2765 /* We shouldn't get two wake packet notifications */
2766 IWL_ERR(mvm,
2767 "Got additional wowlan wake packet notification\n");
2768 } else {
2769 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT;
2770 len = iwl_rx_packet_payload_len(pkt);
2771 ret = iwl_mvm_wowlan_store_wake_pkt(mvm, notif,
2772 d3_data->status,
2773 len);
2774 if (ret)
2775 IWL_ERR(mvm,
2776 "Can't parse WOWLAN_WAKE_PKT_NOTIFICATION\n");
2777 }
2778
4da46a06
HD		 2779 break;
2780 }
5ac54afd
IP		 2781 case WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF): {
2782 struct iwl_scan_offload_match_info *notif = (void *)pkt->data;
2783
2784 if (d3_data->notif_received & IWL_D3_ND_MATCH_INFO) {
2785 IWL_ERR(mvm,
2786 "Got additional netdetect match info\n");
2787 break;
2788 }
2789
2790 d3_data->notif_received |= IWL_D3_ND_MATCH_INFO;
2791
2792 /* explicitly set this in the 'expected' as well */
2793 d3_data->notif_expected |= IWL_D3_ND_MATCH_INFO;
2794
2795 len = iwl_rx_packet_payload_len(pkt);
2796 iwl_mvm_nd_match_info_handler(mvm, d3_data, notif, len);
2797 break;
2798 }
c39e718a
HD		 2799 case WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION): {
2800 struct iwl_mvm_d3_end_notif *notif = (void *)pkt->data;
2801
2802 d3_data->d3_end_flags = __le32_to_cpu(notif->flags);
2803 d3_data->notif_received |= IWL_D3_NOTIF_D3_END_NOTIF;
2804
2805 break;
2806 }
4da46a06
HD		 2807 default:
2808 WARN_ON(1);
2809 }
2810
2811 return d3_data->notif_received == d3_data->notif_expected;
2812}
2813
b75dac84
HD		 2814static int iwl_mvm_resume_firmware(struct iwl_mvm *mvm, bool test)
2815{
2816 int ret;
2817 enum iwl_d3_status d3_status;
2818 struct iwl_host_cmd cmd = {
2819 .id = D0I3_END_CMD,
2820 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
2821 };
2822 bool reset = fw_has_capa(&mvm->fw->ucode_capa,
2823 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
2824
2825 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !reset);
2826 if (ret)
2827 return ret;
2828
2829 if (d3_status != IWL_D3_STATUS_ALIVE) {
2830 IWL_INFO(mvm, "Device was reset during suspend\n");
2831 return -ENOENT;
2832 }
2833
2834 /*
2835 * We should trigger resume flow using command only for 22000 family
2836 * AX210 and above don't need the command since they have
2837 * the doorbell interrupt.
2838 */
2839 if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_22000 &&
2840 fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_D0I3_END_FIRST)) {
2841 ret = iwl_mvm_send_cmd(mvm, &cmd);
2842 if (ret < 0)
2843 IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n",
2844 ret);
2845 }
2846
2847 return ret;
2848}
2849
4da46a06
HD		 2850#define IWL_MVM_D3_NOTIF_TIMEOUT (HZ / 5)
2851
2852static int iwl_mvm_d3_notif_wait(struct iwl_mvm *mvm,
b75dac84 2853 struct iwl_d3_data *d3_data)
4da46a06
HD		 2854{
2855 static const u16 d3_resume_notif[] = {
219ed58f 2856 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION),
c39e718a 2857 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION),
5ac54afd 2858 WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF),
c39e718a 2859 WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION)
4da46a06
HD		 2860 };
2861 struct iwl_notification_wait wait_d3_notif;
2862 int ret;
2863
2864 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif,
2865 d3_resume_notif, ARRAY_SIZE(d3_resume_notif),
2866 iwl_mvm_wait_d3_notif, d3_data);
2867
b75dac84 2868 ret = iwl_mvm_resume_firmware(mvm, d3_data->test);
4da46a06
HD		 2869 if (ret) {
2870 iwl_remove_notification(&mvm->notif_wait, &wait_d3_notif);
2871 return ret;
2872 }
2873
4da46a06
HD		 2874 return iwl_wait_notification(&mvm->notif_wait, &wait_d3_notif,
2875 IWL_MVM_D3_NOTIF_TIMEOUT);
2876}
2877
319756ad
HD		 2878static inline bool iwl_mvm_d3_resume_notif_based(struct iwl_mvm *mvm)
2879{
2880 return iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
2881 WOWLAN_INFO_NOTIFICATION, 0) &&
2882 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
2883 WOWLAN_WAKE_PKT_NOTIFICATION, 0) &&
2884 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
2885 D3_END_NOTIFICATION, 0);
2886}
2887
debff618 2888static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
8ca151b5 2889{
8ca151b5 2890 struct ieee80211_vif *vif = NULL;
23ae6128 2891 int ret = 1;
5ac54afd 2892 struct iwl_mvm_nd_results results = {};
4da46a06
HD		 2893 struct iwl_d3_data d3_data = {
2894 .test = test,
c39e718a
HD		 2895 .notif_expected =
2896 IWL_D3_NOTIF_WOWLAN_INFO |
2897 IWL_D3_NOTIF_D3_END_NOTIF,
5ac54afd
IP		 2898 .nd_results_valid = false,
2899 .nd_results = &results,
4da46a06 2900 };
23ae6128
MG		 2901 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2902 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
fcea37b2
LC		 2903 bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa,
2904 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST);
319756ad 2905 bool resume_notif_based = iwl_mvm_d3_resume_notif_based(mvm);
4a0e6422 2906 bool keep = false;
8ca151b5
JB		 2907
2908 mutex_lock(&mvm->mutex);
2909
e8fe3b41
IP		 2910 mvm->last_reset_or_resume_time_jiffies = jiffies;
2911
8ca151b5 2912 /* get the BSS vif pointer again */
7f549e2c
LC		 2913 vif = iwl_mvm_get_bss_vif(mvm);
2914 if (IS_ERR_OR_NULL(vif))
a500e469 2915 goto err;
8ca151b5 2916
2d8c2615 2917 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
afc66bb7 2918
f57d104f
SM		 2919 if (iwl_mvm_check_rt_status(mvm, vif)) {
2920 set_bit(STATUS_FW_ERROR, &mvm->trans->status);
2921 iwl_mvm_dump_nic_error_log(mvm);
4d75a9eb
SM		 2922 iwl_dbg_tlv_time_point(&mvm->fwrt,
2923 IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL);
f57d104f 2924 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
124e0eba 2925 false, 0);
f57d104f
SM		 2926 ret = 1;
2927 goto err;
2928 }
2929
4da46a06
HD		 2930 if (resume_notif_based) {
2931 d3_data.status = kzalloc(sizeof(*d3_data.status), GFP_KERNEL);
2932 if (!d3_data.status) {
2933 IWL_ERR(mvm, "Failed to allocate wowlan status\n");
2934 ret = -ENOMEM;
2935 goto err;
2936 }
2937
b75dac84
HD		 2938 ret = iwl_mvm_d3_notif_wait(mvm, &d3_data);
2939 if (ret)
2940 goto err;
4da46a06 2941 } else {
b75dac84
HD		 2942 ret = iwl_mvm_resume_firmware(mvm, test);
2943 if (ret < 0)
fcea37b2 2944 goto err;
fcea37b2
LC		 2945 }
2946
2f629a77 2947 /* after the successful handshake, we're out of D3 */
708a39aa
HD		 2948 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2949
c39e718a
HD		 2950 /* when reset is required we can't send these following commands */
2951 if (d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)
2952 goto query_wakeup_reasons;
2953
47c8b154
JD		 2954 /*
2955 * Query the current location and source from the D3 firmware so we
2956 * can play it back when we re-intiailize the D0 firmware
2957 */
2958 iwl_mvm_update_changed_regdom(mvm);
2959
6ce1e5c0
GA		 2960 /* Re-configure PPAG settings */
2961 iwl_mvm_ppag_send_cmd(mvm);
2962
42ce76d6
LC		 2963 if (!unified_image)
2964 /* Re-configure default SAR profile */
2965 iwl_mvm_sar_select_profile(mvm, 1, 1);
2966
4da46a06 2967 if (mvm->net_detect && unified_image) {
5a143db8
LC		 2968 /* If this is a non-unified image, we restart the FW,
2969 * so no need to stop the netdetect scan. If that
2970 * fails, continue and try to get the wake-up reasons,
2971 * but trigger a HW restart by keeping a failure code
2972 * in ret.
2973 */
4da46a06
HD		 2974 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT,
2975 false);
2021a89d 2976 }
8ca151b5 2977
c39e718a 2978query_wakeup_reasons:
4a0e6422 2979 keep = iwl_mvm_choose_query_wakeup_reasons(mvm, vif, &d3_data);
4da46a06
HD		 2980 /* has unlocked the mutex, so skip that */
2981 goto out;
2982
a500e469 2983err:
8ca151b5 2984 mutex_unlock(&mvm->mutex);
e0ede177 2985out:
219ed58f
HD		 2986 if (d3_data.status)
2987 kfree(d3_data.status->wake_packet);
4da46a06
HD		 2988 kfree(d3_data.status);
2989 iwl_mvm_free_nd(mvm);
2990
4a0e6422
YB		 2991 if (!d3_data.test && !mvm->net_detect)
2992 ieee80211_iterate_active_interfaces_mtx(mvm->hw,
2993 IEEE80211_IFACE_ITER_NORMAL,
2994 iwl_mvm_d3_disconnect_iter,
2995 keep ? vif : NULL);
2996
96d2bfb7
ST		 2997 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
2998
fcea37b2 2999 /* no need to reset the device in unified images, if successful */
23ae6128 3000 if (unified_image && !ret) {
fcea37b2
LC		 3001 /* nothing else to do if we already sent D0I3_END_CMD */
3002 if (d0i3_first)
3003 return 0;
3004
c39e718a
HD		 3005 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3006 D3_END_NOTIFICATION, 0)) {
3007 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL);
3008 if (!ret)
3009 return 0;
3010 } else if (!(d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)) {
23ae6128 3011 return 0;
c39e718a 3012 }
23ae6128
MG		 3013 }
3014
3015 /*
3016 * Reconfigure the device in one of the following cases:
3017 * 1. We are not using a unified image
3018 * 2. We are using a unified image but had an error while exiting D3
3019 */
59cd827f 3020 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
23ae6128 3021
2f629a77
JB		 3022 /* regardless of what happened, we're now out of D3 */
3023 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
3024
8ca151b5
JB		 3025 return 1;
3026}
3027
2d42801b
EP		 3028int iwl_mvm_resume(struct ieee80211_hw *hw)
3029{
3030 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b7282643 3031 int ret;
2d42801b 3032
34b79fcf 3033 ret = __iwl_mvm_resume(mvm, false);
b7282643 3034
7d9d0d56
LC		 3035 iwl_mvm_resume_tcm(mvm);
3036
7f8ae00f
HD		 3037 iwl_fw_runtime_resume(&mvm->fwrt);
3038
b7282643 3039 return ret;
debff618
JB		 3040}
3041
8ca151b5
JB		 3042void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
3043{
3044 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3045
3046 device_set_wakeup_enable(mvm->trans->dev, enabled);
3047}
debff618
JB		 3048
3049#ifdef CONFIG_IWLWIFI_DEBUGFS
3050static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
3051{
3052 struct iwl_mvm *mvm = inode->i_private;
3053 int err;
3054
3055 if (mvm->d3_test_active)
3056 return -EBUSY;
3057
3058 file->private_data = inode->i_private;
3059
7d9d0d56
LC		 3060 iwl_mvm_pause_tcm(mvm, true);
3061
7f8ae00f
HD		 3062 iwl_fw_runtime_suspend(&mvm->fwrt);
3063
debff618
JB		 3064 /* start pseudo D3 */
3065 rtnl_lock();
59e1221f 3066 wiphy_lock(mvm->hw->wiphy);
debff618 3067 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
59e1221f 3068 wiphy_unlock(mvm->hw->wiphy);
debff618
JB		 3069 rtnl_unlock();
3070 if (err > 0)
3071 err = -EINVAL;
cfbc6c4c 3072 if (err)
debff618 3073 return err;
cfbc6c4c 3074
debff618 3075 mvm->d3_test_active = true;
78c9df66 3076 mvm->keep_vif = NULL;
debff618
JB		 3077 return 0;
3078}
3079
3080static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
3081 size_t count, loff_t *ppos)
3082{
3083 struct iwl_mvm *mvm = file->private_data;
3084 u32 pme_asserted;
3085
3086 while (true) {
4ed80a86
EP		 3087 /* read pme_ptr if available */
3088 if (mvm->d3_test_pme_ptr) {
3089 pme_asserted = iwl_trans_read_mem32(mvm->trans,
3090 mvm->d3_test_pme_ptr);
3091 if (pme_asserted)
3092 break;
3093 }
3094
debff618
JB		 3095 if (msleep_interruptible(100))
3096 break;
3097 }
3098
3099 return 0;
3100}
3101
3102static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
3103 struct ieee80211_vif *vif)
3104{
78c9df66
EP		 3105 /* skip the one we keep connection on */
3106 if (_data == vif)
3107 return;
3108
debff618
JB		 3109 if (vif->type == NL80211_IFTYPE_STATION)
3110 ieee80211_connection_loss(vif);
3111}
3112
3113static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
3114{
3115 struct iwl_mvm *mvm = inode->i_private;
85cd69b8
LC		 3116 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
3117 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
debff618
JB		 3118
3119 mvm->d3_test_active = false;
b7282643 3120
2d8c2615
SM		 3121 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
3122
31ca09dd 3123 rtnl_lock();
59e1221f 3124 wiphy_lock(mvm->hw->wiphy);
debff618 3125 __iwl_mvm_resume(mvm, true);
59e1221f 3126 wiphy_unlock(mvm->hw->wiphy);
31ca09dd 3127 rtnl_unlock();
b7282643 3128
7d9d0d56
LC		 3129 iwl_mvm_resume_tcm(mvm);
3130
7f8ae00f
HD		 3131 iwl_fw_runtime_resume(&mvm->fwrt);
3132
debff618 3133 iwl_abort_notification_waits(&mvm->notif_wait);
85cd69b8
LC		 3134 if (!unified_image) {
3135 int remaining_time = 10;
debff618 3136
85cd69b8
LC		 3137 ieee80211_restart_hw(mvm->hw);
3138
3139 /* wait for restart and disconnect all interfaces */
3140 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
3141 remaining_time > 0) {
3142 remaining_time--;
3143 msleep(1000);
3144 }
debff618 3145
85cd69b8
LC		 3146 if (remaining_time == 0)
3147 IWL_ERR(mvm, "Timed out waiting for HW restart!\n");
3148 }
debff618
JB		 3149
3150 ieee80211_iterate_active_interfaces_atomic(
3151 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
78c9df66 3152 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif);
debff618 3153
debff618
JB		 3154 return 0;
3155}
3156
3157const struct file_operations iwl_dbgfs_d3_test_ops = {
3158 .llseek = no_llseek,
3159 .open = iwl_mvm_d3_test_open,
3160 .read = iwl_mvm_d3_test_read,
3161 .release = iwl_mvm_d3_test_release,
3162};
3163#endif
Linux 6.x block layer and io_uring tree(s)