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wifi: iwlwifi: mvm: Add support for wowlan info notification
[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;
473 data.rsc->sta_id = cpu_to_le32(mvmvif->ap_sta_id);
474
475 ieee80211_iter_keys(mvm->hw, vif,
476 iwl_mvm_wowlan_get_rsc_v5_data,
477 &data);
478
479 if (data.have_rsc)
480 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM,
481 CMD_ASYNC, sizeof(*data.rsc),
482 data.rsc);
483 else
484 ret = 0;
485 kfree(data.rsc);
486 } else if (ver == 4 || ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN) {
487 struct wowlan_key_rsc_tsc_data data = {};
488 int size;
489
490 data.rsc_tsc = kzalloc(sizeof(*data.rsc_tsc), GFP_KERNEL);
491 if (!data.rsc_tsc)
492 return -ENOMEM;
493
494 if (ver == 4) {
495 size = sizeof(*data.rsc_tsc);
496 data.rsc_tsc->sta_id = cpu_to_le32(mvmvif->ap_sta_id);
497 } else {
498 /* ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN */
499 size = sizeof(data.rsc_tsc->params);
500 }
631ee512 501
79e561f0
JB		 502 ieee80211_iter_keys(mvm->hw, vif,
503 iwl_mvm_wowlan_get_rsc_tsc_data,
504 &data);
505
506 if (data.have_rsc_tsc)
507 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM,
508 CMD_ASYNC, size,
509 data.rsc_tsc);
510 else
511 ret = 0;
512 kfree(data.rsc_tsc);
631ee512
JB		 513 } else {
514 ret = 0;
515 WARN_ON_ONCE(1);
8ca151b5 516 }
631ee512 517
631ee512 518 return ret;
8ca151b5
JB		 519}
520
0419e5e6
JB		 521struct wowlan_key_tkip_data {
522 struct iwl_wowlan_tkip_params_cmd tkip;
523 bool have_tkip_keys;
524};
525
526static void iwl_mvm_wowlan_get_tkip_data(struct ieee80211_hw *hw,
527 struct ieee80211_vif *vif,
528 struct ieee80211_sta *sta,
529 struct ieee80211_key_conf *key,
530 void *_data)
531{
532 struct wowlan_key_tkip_data *data = _data;
533 struct iwl_p1k_cache *rx_p1ks;
534 u8 *rx_mic_key;
535 struct ieee80211_key_seq seq;
536 u32 cur_rx_iv32 = 0;
537 u16 p1k[IWL_P1K_SIZE];
538 int i;
539
540 switch (key->cipher) {
541 default:
542 break;
543 case WLAN_CIPHER_SUITE_TKIP:
544 if (sta) {
545 u64 pn64;
546
547 rx_p1ks = data->tkip.rx_uni;
548
549 pn64 = atomic64_read(&key->tx_pn);
550
551 ieee80211_get_tkip_p1k_iv(key, TKIP_PN_TO_IV32(pn64),
552 p1k);
553 iwl_mvm_convert_p1k(p1k, data->tkip.tx.p1k);
554
555 memcpy(data->tkip.mic_keys.tx,
556 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
557 IWL_MIC_KEY_SIZE);
558
559 rx_mic_key = data->tkip.mic_keys.rx_unicast;
560 } else {
561 rx_p1ks = data->tkip.rx_multi;
562 rx_mic_key = data->tkip.mic_keys.rx_mcast;
563 }
564
565 for (i = 0; i < IWL_NUM_RSC; i++) {
566 /* wrapping isn't allowed, AP must rekey */
567 if (seq.tkip.iv32 > cur_rx_iv32)
568 cur_rx_iv32 = seq.tkip.iv32;
569 }
570
571 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
572 cur_rx_iv32, p1k);
573 iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k);
574 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
575 cur_rx_iv32 + 1, p1k);
576 iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k);
577
578 memcpy(rx_mic_key,
579 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
580 IWL_MIC_KEY_SIZE);
581
582 data->have_tkip_keys = true;
583 break;
584 }
585}
586
be05fae2
JB		 587struct wowlan_key_gtk_type_iter {
588 struct iwl_wowlan_kek_kck_material_cmd_v4 *kek_kck_cmd;
589};
590
591static void iwl_mvm_wowlan_gtk_type_iter(struct ieee80211_hw *hw,
592 struct ieee80211_vif *vif,
593 struct ieee80211_sta *sta,
594 struct ieee80211_key_conf *key,
595 void *_data)
596{
597 struct wowlan_key_gtk_type_iter *data = _data;
598
599 switch (key->cipher) {
600 default:
601 return;
602 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
603 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
604 data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_GCMP);
605 return;
606 case WLAN_CIPHER_SUITE_AES_CMAC:
607 data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_CCM);
608 return;
609 case WLAN_CIPHER_SUITE_CCMP:
610 if (!sta)
611 data->kek_kck_cmd->gtk_cipher =
612 cpu_to_le32(STA_KEY_FLG_CCM);
613 break;
614 case WLAN_CIPHER_SUITE_GCMP:
615 case WLAN_CIPHER_SUITE_GCMP_256:
616 if (!sta)
617 data->kek_kck_cmd->gtk_cipher =
618 cpu_to_le32(STA_KEY_FLG_GCMP);
619 break;
620 }
621}
622
0c546fb6
LC		 623static int iwl_mvm_send_patterns_v1(struct iwl_mvm *mvm,
624 struct cfg80211_wowlan *wowlan)
8ca151b5 625{
0c546fb6 626 struct iwl_wowlan_patterns_cmd_v1 *pattern_cmd;
8ca151b5
JB		 627 struct iwl_host_cmd cmd = {
628 .id = WOWLAN_PATTERNS,
629 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
8ca151b5
JB		 630 };
631 int i, err;
632
633 if (!wowlan->n_patterns)
634 return 0;
635
e3448967 636 cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns);
8ca151b5
JB		 637
638 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
639 if (!pattern_cmd)
640 return -ENOMEM;
641
642 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
643
644 for (i = 0; i < wowlan->n_patterns; i++) {
645 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
646
647 memcpy(&pattern_cmd->patterns[i].mask,
648 wowlan->patterns[i].mask, mask_len);
649 memcpy(&pattern_cmd->patterns[i].pattern,
650 wowlan->patterns[i].pattern,
651 wowlan->patterns[i].pattern_len);
652 pattern_cmd->patterns[i].mask_size = mask_len;
653 pattern_cmd->patterns[i].pattern_size =
654 wowlan->patterns[i].pattern_len;
655 }
656
657 cmd.data[0] = pattern_cmd;
658 err = iwl_mvm_send_cmd(mvm, &cmd);
659 kfree(pattern_cmd);
660 return err;
661}
662
0c546fb6 663static int iwl_mvm_send_patterns(struct iwl_mvm *mvm,
0b35991a 664 struct ieee80211_vif *vif,
0c546fb6
LC		 665 struct cfg80211_wowlan *wowlan)
666{
0b35991a 667 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
0c546fb6
LC		 668 struct iwl_wowlan_patterns_cmd *pattern_cmd;
669 struct iwl_host_cmd cmd = {
670 .id = WOWLAN_PATTERNS,
671 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
672 };
673 int i, err;
971cbe50 674 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id,
0b35991a 675 IWL_FW_CMD_VER_UNKNOWN);
0c546fb6
LC		 676
677 if (!wowlan->n_patterns)
678 return 0;
679
680 cmd.len[0] = sizeof(*pattern_cmd) +
681 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern_v2);
682
0b35991a 683 pattern_cmd = kzalloc(cmd.len[0], GFP_KERNEL);
0c546fb6
LC		 684 if (!pattern_cmd)
685 return -ENOMEM;
686
0b35991a
EG		 687 pattern_cmd->n_patterns = wowlan->n_patterns;
688 if (ver >= 3)
689 pattern_cmd->sta_id = mvmvif->ap_sta_id;
0c546fb6
LC		 690
691 for (i = 0; i < wowlan->n_patterns; i++) {
692 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
693
694 pattern_cmd->patterns[i].pattern_type =
695 WOWLAN_PATTERN_TYPE_BITMASK;
696
697 memcpy(&pattern_cmd->patterns[i].u.bitmask.mask,
698 wowlan->patterns[i].mask, mask_len);
699 memcpy(&pattern_cmd->patterns[i].u.bitmask.pattern,
700 wowlan->patterns[i].pattern,
701 wowlan->patterns[i].pattern_len);
702 pattern_cmd->patterns[i].u.bitmask.mask_size = mask_len;
703 pattern_cmd->patterns[i].u.bitmask.pattern_size =
704 wowlan->patterns[i].pattern_len;
705 }
706
707 cmd.data[0] = pattern_cmd;
708 err = iwl_mvm_send_cmd(mvm, &cmd);
709 kfree(pattern_cmd);
710 return err;
711}
712
8ca151b5
JB		 713static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
714 struct ieee80211_sta *ap_sta)
715{
716 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
717 struct ieee80211_chanctx_conf *ctx;
718 u8 chains_static, chains_dynamic;
719 struct cfg80211_chan_def chandef;
720 int ret, i;
10a970df 721 struct iwl_binding_cmd_v1 binding_cmd = {};
8ca151b5 722 struct iwl_time_quota_cmd quota_cmd = {};
72cbb73e 723 struct iwl_time_quota_data *quota;
8ca151b5 724 u32 status;
10a970df
DH		 725
726 if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm)))
727 return -EINVAL;
8ca151b5
JB		 728
729 /* add back the PHY */
730 if (WARN_ON(!mvmvif->phy_ctxt))
731 return -EINVAL;
732
733 rcu_read_lock();
d0a9123e 734 ctx = rcu_dereference(vif->bss_conf.chanctx_conf);
8ca151b5
JB		 735 if (WARN_ON(!ctx)) {
736 rcu_read_unlock();
737 return -EINVAL;
738 }
739 chandef = ctx->def;
740 chains_static = ctx->rx_chains_static;
741 chains_dynamic = ctx->rx_chains_dynamic;
742 rcu_read_unlock();
743
744 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef,
745 chains_static, chains_dynamic);
746 if (ret)
747 return ret;
748
749 /* add back the MAC */
750 mvmvif->uploaded = false;
751
f276e20b 752 if (WARN_ON(!vif->cfg.assoc))
8ca151b5 753 return -EINVAL;
bca49d9a 754
8ca151b5 755 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
8ca151b5
JB		 756 if (ret)
757 return ret;
758
759 /* add back binding - XXX refactor? */
760 binding_cmd.id_and_color =
761 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
762 mvmvif->phy_ctxt->color));
763 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
764 binding_cmd.phy =
765 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
766 mvmvif->phy_ctxt->color));
767 binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
768 mvmvif->color));
769 for (i = 1; i < MAX_MACS_IN_BINDING; i++)
770 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
771
772 status = 0;
773 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
10a970df
DH		 774 IWL_BINDING_CMD_SIZE_V1, &binding_cmd,
775 &status);
8ca151b5
JB		 776 if (ret) {
777 IWL_ERR(mvm, "Failed to add binding: %d\n", ret);
778 return ret;
779 }
780
781 if (status) {
782 IWL_ERR(mvm, "Binding command failed: %u\n", status);
783 return -EIO;
784 }
785
24afba76 786 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0);
8ca151b5
JB		 787 if (ret)
788 return ret;
789 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta);
790
3dfd3a97 791 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 792 if (ret)
793 return ret;
794
795 /* and some quota */
72cbb73e
DS		 796 quota = iwl_mvm_quota_cmd_get_quota(mvm, &quota_cmd, 0);
797 quota->id_and_color =
8ca151b5
JB		 798 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
799 mvmvif->phy_ctxt->color));
72cbb73e
DS		 800 quota->quota = cpu_to_le32(IWL_MVM_MAX_QUOTA);
801 quota->max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA);
8ca151b5 802
72cbb73e
DS		 803 for (i = 1; i < MAX_BINDINGS; i++) {
804 quota = iwl_mvm_quota_cmd_get_quota(mvm, &quota_cmd, i);
805 quota->id_and_color = cpu_to_le32(FW_CTXT_INVALID);
806 }
8ca151b5 807
a1022927 808 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0,
72cbb73e 809 iwl_mvm_quota_cmd_size(mvm), &quota_cmd);
8ca151b5
JB		 810 if (ret)
811 IWL_ERR(mvm, "Failed to send quota: %d\n", ret);
812
47c8b154
JD		 813 if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm))
814 IWL_ERR(mvm, "Failed to initialize D3 LAR information\n");
815
8ca151b5
JB		 816 return 0;
817}
818
4ac6cb59
JB		 819static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
820 struct ieee80211_vif *vif)
821{
6d9d32b8
JB		 822 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
823 struct iwl_nonqos_seq_query_cmd query_cmd = {
824 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET),
825 .mac_id_n_color =
826 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
827 mvmvif->color)),
828 };
4ac6cb59
JB		 829 struct iwl_host_cmd cmd = {
830 .id = NON_QOS_TX_COUNTER_CMD,
a1022927 831 .flags = CMD_WANT_SKB,
4ac6cb59
JB		 832 };
833 int err;
834 u32 size;
835
3afec639
EG		 836 cmd.data[0] = &query_cmd;
837 cmd.len[0] = sizeof(query_cmd);
6d9d32b8 838
4ac6cb59
JB		 839 err = iwl_mvm_send_cmd(mvm, &cmd);
840 if (err)
841 return err;
842
65b30348 843 size = iwl_rx_packet_payload_len(cmd.resp_pkt);
6d9d32b8 844 if (size < sizeof(__le16)) {
4ac6cb59 845 err = -EINVAL;
6d9d32b8
JB		 846 } else {
847 err = le16_to_cpup((__le16 *)cmd.resp_pkt->data);
3afec639
EG		 848 /* firmware returns next, not last-used seqno */
849 err = (u16) (err - 0x10);
6d9d32b8 850 }
4ac6cb59
JB		 851
852 iwl_free_resp(&cmd);
853 return err;
854}
855
6d9d32b8
JB		 856void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
857{
858 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
859 struct iwl_nonqos_seq_query_cmd query_cmd = {
860 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET),
861 .mac_id_n_color =
862 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
863 mvmvif->color)),
864 .value = cpu_to_le16(mvmvif->seqno),
865 };
866
867 /* return if called during restart, not resume from D3 */
868 if (!mvmvif->seqno_valid)
869 return;
870
871 mvmvif->seqno_valid = false;
872
a1022927 873 if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0,
6d9d32b8
JB		 874 sizeof(query_cmd), &query_cmd))
875 IWL_ERR(mvm, "failed to set non-QoS seqno\n");
876}
877
671b5820
LC		 878static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm)
879{
c7d42480 880 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
671b5820 881
fcb6b92a 882 iwl_mvm_stop_device(mvm);
671b5820
LC		 883 /*
884 * Set the HW restart bit -- this is mostly true as we're
885 * going to load new firmware and reprogram that, though
886 * the reprogramming is going to be manual to avoid adding
887 * all the MACs that aren't support.
888 * We don't have to clear up everything though because the
889 * reprogramming is manual. When we resume, we'll actually
890 * go through a proper restart sequence again to switch
891 * back to the runtime firmware image.
892 */
893 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
894
9c3deeb5
LC		 895 /* the fw is reset, so all the keys are cleared */
896 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
897
671b5820
LC		 898 mvm->ptk_ivlen = 0;
899 mvm->ptk_icvlen = 0;
900 mvm->ptk_ivlen = 0;
901 mvm->ptk_icvlen = 0;
902
903 return iwl_mvm_load_d3_fw(mvm);
904}
905
671b5820
LC		 906static int
907iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
908 struct cfg80211_wowlan *wowlan,
c8b06a99 909 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
671b5820
LC		 910 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
911 struct ieee80211_sta *ap_sta)
8ca151b5 912{
9d8ce6af 913 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
8ca151b5 914
c8b06a99 915 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
8ca151b5 916
c8b06a99 917 wowlan_config_cmd->is_11n_connection =
046d2e7c 918 ap_sta->deflink.ht_cap.ht_supported;
70b4c536 919 wowlan_config_cmd->flags = ENABLE_L3_FILTERING |
32795a88 920 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING;
8ca151b5 921
971cbe50 922 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 6) {
5b16565a
NG		 923 /* Query the last used seqno and set it */
924 int ret = iwl_mvm_get_last_nonqos_seq(mvm, vif);
925
926 if (ret < 0)
927 return ret;
8ca151b5 928
5b16565a
NG		 929 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret);
930 }
671b5820 931
c8b06a99 932 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd);
8ca151b5
JB		 933
934 if (wowlan->disconnect)
c8b06a99 935 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 936 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
937 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
938 if (wowlan->magic_pkt)
c8b06a99 939 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 940 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
941 if (wowlan->gtk_rekey_failure)
c8b06a99 942 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 943 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
944 if (wowlan->eap_identity_req)
c8b06a99 945 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 946 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
947 if (wowlan->four_way_handshake)
c8b06a99 948 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 949 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
950 if (wowlan->n_patterns)
c8b06a99 951 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 952 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
953
954 if (wowlan->rfkill_release)
c8b06a99 955 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 956 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
957
f0c2646a
JB		 958 if (wowlan->tcp) {
959 /*
6039f3e1
JB		 960 * Set the "link change" (really "link lost") flag as well
961 * since that implies losing the TCP connection.
f0c2646a 962 */
c8b06a99 963 wowlan_config_cmd->wakeup_filter |=
f0c2646a
JB		 964 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS |
965 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE |
966 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET |
967 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
968 }
969
d3a6f7fb
EP		 970 if (wowlan->any) {
971 wowlan_config_cmd->wakeup_filter |=
972 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
973 IWL_WOWLAN_WAKEUP_LINK_CHANGE |
974 IWL_WOWLAN_WAKEUP_RX_FRAME |
975 IWL_WOWLAN_WAKEUP_BCN_FILTERING);
976 }
977
671b5820
LC		 978 return 0;
979}
f444eb10 980
0ea93388 981static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
398760aa 982 struct ieee80211_vif *vif)
671b5820 983{
8c7fd6a3
SS		 984 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
985 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
af3aab9c 986 struct wowlan_key_reprogram_data key_data = {};
ac8ef0ce
EP		 987 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
988 int ret;
9e3c3936
NE		 989 u8 cmd_ver;
990 size_t cmd_size;
ac8ef0ce 991
af3aab9c
JB		 992 if (!unified) {
993 /*
994 * if we have to configure keys, call ieee80211_iter_keys(),
995 * as we need non-atomic context in order to take the
996 * required locks.
997 */
998 /*
999 * Note that currently we don't use CMD_ASYNC in the iterator.
1000 * In case of key_data.configure_keys, all the configured
1001 * commands are SYNC, and iwl_mvm_wowlan_program_keys() will
1002 * take care of locking/unlocking mvm->mutex.
1003 */
1004 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_program_keys,
1005 &key_data);
ac8ef0ce 1006
af3aab9c
JB		 1007 if (key_data.error)
1008 return -EIO;
1009 }
ee3ae3a1 1010
631ee512
JB		 1011 ret = iwl_mvm_wowlan_config_rsc_tsc(mvm, vif);
1012 if (ret)
1013 return ret;
ac8ef0ce 1014
0419e5e6 1015 if (!fw_has_api(&mvm->fw->ucode_capa,
45c458b4 1016 IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) {
971cbe50 1017 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TKIP_PARAM,
e80bfd11 1018 IWL_FW_CMD_VER_UNKNOWN);
0419e5e6 1019 struct wowlan_key_tkip_data tkip_data = {};
870bde78
DH		 1020 int size;
1021
1022 if (ver == 2) {
0419e5e6
JB		 1023 size = sizeof(tkip_data.tkip);
1024 tkip_data.tkip.sta_id =
870bde78
DH		 1025 cpu_to_le32(mvmvif->ap_sta_id);
1026 } else if (ver == 1 || ver == IWL_FW_CMD_VER_UNKNOWN) {
1027 size = sizeof(struct iwl_wowlan_tkip_params_cmd_ver_1);
1028 } else {
870bde78 1029 WARN_ON_ONCE(1);
631ee512 1030 return -EINVAL;
870bde78
DH		 1031 }
1032
0419e5e6
JB		 1033 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_get_tkip_data,
1034 &tkip_data);
1035
1036 if (tkip_data.have_tkip_keys) {
1037 /* send relevant data according to CMD version */
1038 ret = iwl_mvm_send_cmd_pdu(mvm,
1039 WOWLAN_TKIP_PARAM,
398760aa 1040 CMD_ASYNC, size,
0419e5e6
JB		 1041 &tkip_data.tkip);
1042 if (ret)
631ee512 1043 return ret;
0419e5e6 1044 }
ac8ef0ce
EP		 1045 }
1046
a3f7ba5c 1047 /* configure rekey data only if offloaded rekey is supported (d3) */
0ea93388 1048 if (mvmvif->rekey_data.valid) {
be05fae2
JB		 1049 struct iwl_wowlan_kek_kck_material_cmd_v4 kek_kck_cmd = {};
1050 struct iwl_wowlan_kek_kck_material_cmd_v4 *_kek_kck_cmd =
1051 &kek_kck_cmd;
1052 struct wowlan_key_gtk_type_iter gtk_type_data = {
1053 .kek_kck_cmd = _kek_kck_cmd,
1054 };
1055
e80bfd11 1056 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
e80bfd11
MG		 1057 WOWLAN_KEK_KCK_MATERIAL,
1058 IWL_FW_CMD_VER_UNKNOWN);
80e67119 1059 if (WARN_ON(cmd_ver != 2 && cmd_ver != 3 && cmd_ver != 4 &&
9e3c3936
NE		 1060 cmd_ver != IWL_FW_CMD_VER_UNKNOWN))
1061 return -EINVAL;
9e3c3936 1062
be05fae2
JB		 1063 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_gtk_type_iter,
1064 &gtk_type_data);
1065
ac8ef0ce 1066 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
2a42aea7
NE		 1067 mvmvif->rekey_data.kck_len);
1068 kek_kck_cmd.kck_len = cpu_to_le16(mvmvif->rekey_data.kck_len);
ac8ef0ce 1069 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
2a42aea7
NE		 1070 mvmvif->rekey_data.kek_len);
1071 kek_kck_cmd.kek_len = cpu_to_le16(mvmvif->rekey_data.kek_len);
ac8ef0ce 1072 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
2a42aea7 1073 kek_kck_cmd.akm = cpu_to_le32(mvmvif->rekey_data.akm);
80e67119
EG		 1074 kek_kck_cmd.sta_id = cpu_to_le32(mvmvif->ap_sta_id);
1075
1076 if (cmd_ver == 4) {
1077 cmd_size = sizeof(struct iwl_wowlan_kek_kck_material_cmd_v4);
1078 } else {
1079 if (cmd_ver == 3)
1080 cmd_size =
1081 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v3);
1082 else
1083 cmd_size =
1084 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v2);
1085 /* skip the sta_id at the beginning */
1086 _kek_kck_cmd = (void *)
3827cb59 1087 ((u8 *)_kek_kck_cmd + sizeof(kek_kck_cmd.sta_id));
80e67119 1088 }
ac8ef0ce 1089
19d9fa7a
SS		 1090 IWL_DEBUG_WOWLAN(mvm, "setting akm %d\n",
1091 mvmvif->rekey_data.akm);
1092
398760aa
JB		 1093 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_KEK_KCK_MATERIAL,
1094 CMD_ASYNC, cmd_size, _kek_kck_cmd);
ac8ef0ce 1095 if (ret)
631ee512 1096 return ret;
ac8ef0ce 1097 }
631ee512
JB		 1098
1099 return 0;
ac8ef0ce
EP		 1100}
1101
1102static int
1103iwl_mvm_wowlan_config(struct iwl_mvm *mvm,
1104 struct cfg80211_wowlan *wowlan,
1105 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
1106 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
1107 struct ieee80211_sta *ap_sta)
1108{
671b5820 1109 int ret;
23ae6128
MG		 1110 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1111 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
8ca151b5 1112
ba7136f3
AM		 1113 mvm->offload_tid = wowlan_config_cmd->offloading_tid;
1114
23ae6128
MG		 1115 if (!unified_image) {
1116 ret = iwl_mvm_switch_to_d3(mvm);
1117 if (ret)
1118 return ret;
3acc952b 1119
23ae6128
MG		 1120 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
1121 if (ret)
1122 return ret;
1123 }
671b5820 1124
f4bfdc5e
EG		 1125 /*
1126 * This needs to be unlocked due to lock ordering
1127 * constraints. Since we're in the suspend path
1128 * that isn't really a problem though.
1129 */
1130 mutex_unlock(&mvm->mutex);
398760aa 1131 ret = iwl_mvm_wowlan_config_key_params(mvm, vif);
f4bfdc5e
EG		 1132 mutex_lock(&mvm->mutex);
1133 if (ret)
1134 return ret;
8ca151b5 1135
c8b06a99
EG		 1136 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
1137 sizeof(*wowlan_config_cmd),
1138 wowlan_config_cmd);
8ca151b5 1139 if (ret)
ac8ef0ce 1140 return ret;
8ca151b5 1141
0c546fb6
LC		 1142 if (fw_has_api(&mvm->fw->ucode_capa,
1143 IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE))
0b35991a 1144 ret = iwl_mvm_send_patterns(mvm, vif, wowlan);
0c546fb6
LC		 1145 else
1146 ret = iwl_mvm_send_patterns_v1(mvm, wowlan);
8ca151b5 1147 if (ret)
ac8ef0ce 1148 return ret;
8ca151b5 1149
debdc23b 1150 return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0);
671b5820
LC		 1151}
1152
3acc952b
LC		 1153static int
1154iwl_mvm_netdetect_config(struct iwl_mvm *mvm,
1155 struct cfg80211_wowlan *wowlan,
1156 struct cfg80211_sched_scan_request *nd_config,
1157 struct ieee80211_vif *vif)
1158{
3acc952b 1159 int ret;
23ae6128
MG		 1160 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1161 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
3acc952b 1162
23ae6128
MG		 1163 if (!unified_image) {
1164 ret = iwl_mvm_switch_to_d3(mvm);
1165 if (ret)
1166 return ret;
5a143db8
LC		 1167 } else {
1168 /* In theory, we wouldn't have to stop a running sched
1169 * scan in order to start another one (for
1170 * net-detect). But in practice this doesn't seem to
1171 * work properly, so stop any running sched_scan now.
1172 */
1173 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
1174 if (ret)
1175 return ret;
23ae6128 1176 }
3acc952b 1177
19945dfb
LC		 1178 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies,
1179 IWL_MVM_SCAN_NETDETECT);
d9718da8
LC		 1180 if (ret)
1181 return ret;
3acc952b 1182
8ed4e659 1183 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels))
d9718da8
LC		 1184 return -EBUSY;
1185
8ed4e659 1186 /* save the sched scan matchsets... */
d9718da8
LC		 1187 if (nd_config->n_match_sets) {
1188 mvm->nd_match_sets = kmemdup(nd_config->match_sets,
1189 sizeof(*nd_config->match_sets) *
1190 nd_config->n_match_sets,
1191 GFP_KERNEL);
1192 if (mvm->nd_match_sets)
1193 mvm->n_nd_match_sets = nd_config->n_match_sets;
1194 }
1195
8ed4e659
LC		 1196 /* ...and the sched scan channels for later reporting */
1197 mvm->nd_channels = kmemdup(nd_config->channels,
1198 sizeof(*nd_config->channels) *
1199 nd_config->n_channels,
1200 GFP_KERNEL);
1201 if (mvm->nd_channels)
1202 mvm->n_nd_channels = nd_config->n_channels;
1203
d9718da8
LC		 1204 return 0;
1205}
1206
1207static void iwl_mvm_free_nd(struct iwl_mvm *mvm)
1208{
1209 kfree(mvm->nd_match_sets);
1210 mvm->nd_match_sets = NULL;
1211 mvm->n_nd_match_sets = 0;
8ed4e659
LC		 1212 kfree(mvm->nd_channels);
1213 mvm->nd_channels = NULL;
1214 mvm->n_nd_channels = 0;
3acc952b
LC		 1215}
1216
671b5820
LC		 1217static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
1218 struct cfg80211_wowlan *wowlan,
1219 bool test)
1220{
1221 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
671b5820
LC		 1222 struct ieee80211_vif *vif = NULL;
1223 struct iwl_mvm_vif *mvmvif = NULL;
1224 struct ieee80211_sta *ap_sta = NULL;
671b5820
LC		 1225 struct iwl_d3_manager_config d3_cfg_cmd_data = {
1226 /*
1227 * Program the minimum sleep time to 10 seconds, as many
1228 * platforms have issues processing a wakeup signal while
1229 * still being in the process of suspending.
1230 */
1231 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
1232 };
1233 struct iwl_host_cmd d3_cfg_cmd = {
1234 .id = D3_CONFIG_CMD,
708a39aa 1235 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
671b5820
LC		 1236 .data[0] = &d3_cfg_cmd_data,
1237 .len[0] = sizeof(d3_cfg_cmd_data),
1238 };
1239 int ret;
1240 int len __maybe_unused;
23ae6128
MG		 1241 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1242 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
671b5820
LC		 1243
1244 if (!wowlan) {
1245 /*
1246 * mac80211 shouldn't get here, but for D3 test
1247 * it doesn't warrant a warning
1248 */
1249 WARN_ON(!test);
1250 return -EINVAL;
1251 }
1252
1253 mutex_lock(&mvm->mutex);
1254
1019f9ef
JB		 1255 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1256
00520b7a
EG		 1257 synchronize_net();
1258
7f549e2c
LC		 1259 vif = iwl_mvm_get_bss_vif(mvm);
1260 if (IS_ERR_OR_NULL(vif)) {
671b5820
LC		 1261 ret = 1;
1262 goto out_noreset;
1263 }
1264
671b5820
LC		 1265 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1266
0ae98812 1267 if (mvmvif->ap_sta_id == IWL_MVM_INVALID_STA) {
3acc952b 1268 /* if we're not associated, this must be netdetect */
566f165d 1269 if (!wowlan->nd_config) {
3acc952b
LC		 1270 ret = 1;
1271 goto out_noreset;
1272 }
1273
1274 ret = iwl_mvm_netdetect_config(
566f165d 1275 mvm, wowlan, wowlan->nd_config, vif);
3acc952b
LC		 1276 if (ret)
1277 goto out;
2021a89d
LC		 1278
1279 mvm->net_detect = true;
3acc952b 1280 } else {
c8b06a99 1281 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
3acc952b 1282
f005fd88
HD		 1283 wowlan_config_cmd.sta_id = mvmvif->ap_sta_id;
1284
1e4d19ca
LC		 1285 ap_sta = rcu_dereference_protected(
1286 mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1287 lockdep_is_held(&mvm->mutex));
1288 if (IS_ERR_OR_NULL(ap_sta)) {
1289 ret = -EINVAL;
1290 goto out_noreset;
1291 }
671b5820 1292
1e4d19ca
LC		 1293 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1294 vif, mvmvif, ap_sta);
1295 if (ret)
1296 goto out_noreset;
1e4d19ca
LC		 1297 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1298 vif, mvmvif, ap_sta);
1299 if (ret)
3c2f3b20 1300 goto out;
2021a89d
LC		 1301
1302 mvm->net_detect = false;
1e4d19ca 1303 }
f0c2646a 1304
c1cb92fc 1305 ret = iwl_mvm_power_update_device(mvm);
64b928c4
AB		 1306 if (ret)
1307 goto out;
1308
999609f1 1309 ret = iwl_mvm_power_update_mac(mvm);
ee1e8422
AB		 1310 if (ret)
1311 goto out;
1312
b0114714
JB		 1313#ifdef CONFIG_IWLWIFI_DEBUGFS
1314 if (mvm->d3_wake_sysassert)
1315 d3_cfg_cmd_data.wakeup_flags |=
1316 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR);
1317#endif
1318
e8a583f9 1319 /*
c040fe83
SM		 1320 * Prior to 9000 device family the driver needs to stop the dbg
1321 * recording before entering D3. In later devices the FW stops the
1322 * recording automatically.
e8a583f9 1323 */
286ca8eb 1324 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000)
57605833 1325 iwl_fw_dbg_stop_restart_recording(&mvm->fwrt, NULL, true);
e8a583f9 1326
708a39aa
HD		 1327 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
1328
8ca151b5 1329 /* must be last -- this switches firmware state */
debff618 1330 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
8ca151b5
JB		 1331 if (ret)
1332 goto out;
debff618 1333#ifdef CONFIG_IWLWIFI_DEBUGFS
65b30348
JB		 1334 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt);
1335 if (len >= sizeof(u32)) {
debff618
JB		 1336 mvm->d3_test_pme_ptr =
1337 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
debff618
JB		 1338 }
1339#endif
1340 iwl_free_resp(&d3_cfg_cmd);
8ca151b5
JB		 1341
1342 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1343
e5f3f215 1344 ret = iwl_trans_d3_suspend(mvm->trans, test, !unified_image);
8ca151b5 1345 out:
d9718da8 1346 if (ret < 0) {
d9718da8 1347 iwl_mvm_free_nd(mvm);
bac453ab
LC		 1348
1349 if (!unified_image) {
3b37f4c9
JB		 1350 if (mvm->fw_restart > 0) {
1351 mvm->fw_restart--;
bac453ab
LC		 1352 ieee80211_restart_hw(mvm->hw);
1353 }
1354 }
1019f9ef
JB		 1355
1356 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
d9718da8 1357 }
b70ab727 1358 out_noreset:
8ca151b5
JB		 1359 mutex_unlock(&mvm->mutex);
1360
1361 return ret;
1362}
1363
debff618
JB		 1364int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
1365{
d15a747f 1366 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
c43fe907 1367
7d9d0d56 1368 iwl_mvm_pause_tcm(mvm, true);
cf8c3cff 1369
7f8ae00f
HD		 1370 iwl_fw_runtime_suspend(&mvm->fwrt);
1371
debff618
JB		 1372 return __iwl_mvm_suspend(hw, wowlan, false);
1373}
1374
6d9d32b8
JB		 1375/* converted data from the different status responses */
1376struct iwl_wowlan_status_data {
4d4cbb9b
JB		 1377 u64 replay_ctr;
1378 u32 num_of_gtk_rekeys;
1379 u32 received_beacons;
6d9d32b8
JB		 1380 u32 wakeup_reasons;
1381 u32 wake_packet_length;
1382 u32 wake_packet_bufsize;
4d4cbb9b
JB		 1383 u16 pattern_number;
1384 u16 non_qos_seq_ctr;
1385 u16 qos_seq_ctr[8];
1386 u8 tid_tear_down;
1387
2dc97742
JB		 1388 struct {
1389 /* including RX MIC key for TKIP */
1390 u8 key[WOWLAN_KEY_MAX_SIZE];
1391 u8 len;
1392 u8 flags;
1393 } gtk;
1394
4d4cbb9b
JB		 1395 struct {
1396 /*
1397 * We store both the TKIP and AES representations
1398 * coming from the firmware because we decode the
1399 * data from there before we iterate the keys and
1400 * know which one we need.
1401 */
1402 struct {
1403 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
1404 } tkip, aes;
2dc97742
JB		 1405
1406 /*
1407 * We use -1 for when we have valid data but don't know
1408 * the key ID from firmware, and thus it needs to be
1409 * installed with the last key (depending on rekeying).
1410 */
1411 s8 key_id;
1412 bool valid;
1413 } gtk_seq[2];
4d4cbb9b
JB		 1414
1415 struct {
1416 /* Same as above */
1417 struct {
1418 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
1419 u64 tx_pn;
1420 } tkip, aes;
1421 } ptk;
1422
1423 struct {
1424 u64 ipn;
1425 u8 key[WOWLAN_KEY_MAX_SIZE];
1426 u8 len;
1427 u8 flags;
1428 } igtk;
1429
1430 u8 wake_packet[];
6d9d32b8
JB		 1431};
1432
7abc4632
JB		 1433static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
1434 struct ieee80211_vif *vif,
6d9d32b8 1435 struct iwl_wowlan_status_data *status)
9b26b500 1436{
7abc4632 1437 struct sk_buff *pkt = NULL;
9b26b500
JB		 1438 struct cfg80211_wowlan_wakeup wakeup = {
1439 .pattern_idx = -1,
1440 };
1441 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
6d9d32b8 1442 u32 reasons = status->wakeup_reasons;
9b26b500
JB		 1443
1444 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1445 wakeup_report = NULL;
1446 goto report;
1447 }
1448
06ae2ad4
DB		 1449 pm_wakeup_event(mvm->dev, 0);
1450
f444eb10 1451 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
9b26b500 1452 wakeup.magic_pkt = true;
9b26b500 1453
f444eb10 1454 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
9b26b500 1455 wakeup.pattern_idx =
6d9d32b8 1456 status->pattern_number;
9b26b500
JB		 1457
1458 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1459 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH))
1460 wakeup.disconnect = true;
1461
f444eb10 1462 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
9b26b500 1463 wakeup.gtk_rekey_failure = true;
9b26b500 1464
f444eb10 1465 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
9b26b500 1466 wakeup.rfkill_release = true;
9b26b500 1467
f444eb10 1468 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
9b26b500 1469 wakeup.eap_identity_req = true;
9b26b500 1470
f444eb10 1471 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
9b26b500 1472 wakeup.four_way_handshake = true;
9b26b500 1473
f0c2646a
JB		 1474 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1475 wakeup.tcp_connlost = true;
1476
1477 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1478 wakeup.tcp_nomoretokens = true;
1479
1480 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1481 wakeup.tcp_match = true;
1482
9b26b500 1483 if (status->wake_packet_bufsize) {
6d9d32b8
JB		 1484 int pktsize = status->wake_packet_bufsize;
1485 int pktlen = status->wake_packet_length;
f444eb10 1486 const u8 *pktdata = status->wake_packet;
86e8e657 1487 const struct ieee80211_hdr *hdr = (const void *)pktdata;
f444eb10
JB		 1488 int truncated = pktlen - pktsize;
1489
1490 /* this would be a firmware bug */
1491 if (WARN_ON_ONCE(truncated < 0))
1492 truncated = 0;
1493
1494 if (ieee80211_is_data(hdr->frame_control)) {
1495 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1496 int ivlen = 0, icvlen = 4; /* also FCS */
9b26b500 1497
9b26b500
JB		 1498 pkt = alloc_skb(pktsize, GFP_KERNEL);
1499 if (!pkt)
1500 goto report;
f444eb10 1501
59ae1d12 1502 skb_put_data(pkt, pktdata, hdrlen);
f444eb10
JB		 1503 pktdata += hdrlen;
1504 pktsize -= hdrlen;
1505
1506 if (ieee80211_has_protected(hdr->frame_control)) {
7abc4632
JB		 1507 /*
1508 * This is unlocked and using gtk_i(c)vlen,
1509 * but since everything is under RTNL still
1510 * that's not really a problem - changing
1511 * it would be difficult.
1512 */
f444eb10
JB		 1513 if (is_multicast_ether_addr(hdr->addr1)) {
1514 ivlen = mvm->gtk_ivlen;
1515 icvlen += mvm->gtk_icvlen;
1516 } else {
1517 ivlen = mvm->ptk_ivlen;
1518 icvlen += mvm->ptk_icvlen;
1519 }
1520 }
1521
1522 /* if truncated, FCS/ICV is (partially) gone */
1523 if (truncated >= icvlen) {
1524 icvlen = 0;
1525 truncated -= icvlen;
1526 } else {
1527 icvlen -= truncated;
1528 truncated = 0;
1529 }
1530
1531 pktsize -= ivlen + icvlen;
1532 pktdata += ivlen;
1533
59ae1d12 1534 skb_put_data(pkt, pktdata, pktsize);
f444eb10 1535
9b26b500
JB		 1536 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1537 goto report;
1538 wakeup.packet = pkt->data;
1539 wakeup.packet_present_len = pkt->len;
f444eb10 1540 wakeup.packet_len = pkt->len - truncated;
9b26b500
JB		 1541 wakeup.packet_80211 = false;
1542 } else {
f444eb10
JB		 1543 int fcslen = 4;
1544
1545 if (truncated >= 4) {
1546 truncated -= 4;
1547 fcslen = 0;
1548 } else {
1549 fcslen -= truncated;
1550 truncated = 0;
1551 }
1552 pktsize -= fcslen;
9b26b500
JB		 1553 wakeup.packet = status->wake_packet;
1554 wakeup.packet_present_len = pktsize;
f444eb10 1555 wakeup.packet_len = pktlen - truncated;
9b26b500
JB		 1556 wakeup.packet_80211 = true;
1557 }
1558 }
1559
1560 report:
1561 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1562 kfree_skb(pkt);
7abc4632 1563}
9b26b500 1564
2dc97742 1565static void iwl_mvm_le64_to_aes_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
6d9d32b8 1566{
2dc97742 1567 u64 pn = le64_to_cpu(le_pn);
6d9d32b8 1568
6d9d32b8
JB		 1569 seq->ccmp.pn[0] = pn >> 40;
1570 seq->ccmp.pn[1] = pn >> 32;
1571 seq->ccmp.pn[2] = pn >> 24;
1572 seq->ccmp.pn[3] = pn >> 16;
1573 seq->ccmp.pn[4] = pn >> 8;
1574 seq->ccmp.pn[5] = pn;
1575}
1576
2dc97742
JB		 1577static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
1578 struct ieee80211_key_seq *seq)
1579{
1580 iwl_mvm_le64_to_aes_seq(sc->pn, seq);
1581}
1582
1583static void iwl_mvm_le64_to_tkip_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
1584{
1585 u64 pn = le64_to_cpu(le_pn);
1586
1587 seq->tkip.iv16 = (u16)pn;
1588 seq->tkip.iv32 = (u32)(pn >> 16);
1589}
1590
6d9d32b8
JB		 1591static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
1592 struct ieee80211_key_seq *seq)
1593{
1594 seq->tkip.iv32 = le32_to_cpu(sc->iv32);
1595 seq->tkip.iv16 = le16_to_cpu(sc->iv16);
1596}
1597
4d4cbb9b
JB		 1598static void iwl_mvm_set_key_rx_seq_tids(struct ieee80211_key_conf *key,
1599 struct ieee80211_key_seq *seq)
6d9d32b8
JB		 1600{
1601 int tid;
1602
4d4cbb9b
JB		 1603 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++)
1604 ieee80211_set_key_rx_seq(key, tid, &seq[tid]);
1605}
6d9d32b8 1606
4d4cbb9b
JB		 1607static void iwl_mvm_set_aes_ptk_rx_seq(struct iwl_mvm *mvm,
1608 struct iwl_wowlan_status_data *status,
1609 struct ieee80211_sta *sta,
1610 struct ieee80211_key_conf *key)
1611{
1612 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1613 struct iwl_mvm_key_pn *ptk_pn;
1614 int tid;
6d9d32b8 1615
4d4cbb9b 1616 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.aes.seq);
f5e28eac 1617
4d4cbb9b
JB		 1618 if (!iwl_mvm_has_new_rx_api(mvm))
1619 return;
f5e28eac 1620
f5e28eac 1621
4d4cbb9b
JB		 1622 rcu_read_lock();
1623 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
1624 if (WARN_ON(!ptk_pn)) {
efa40c7e 1625 rcu_read_unlock();
4d4cbb9b
JB		 1626 return;
1627 }
f5e28eac 1628
4d4cbb9b
JB		 1629 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1630 int i;
1631
1632 for (i = 1; i < mvm->trans->num_rx_queues; i++)
1633 memcpy(ptk_pn->q[i].pn[tid],
1634 status->ptk.aes.seq[tid].ccmp.pn,
1635 IEEE80211_CCMP_PN_LEN);
6d9d32b8 1636 }
4d4cbb9b 1637 rcu_read_unlock();
6d9d32b8
JB		 1638}
1639
4d4cbb9b
JB		 1640static void iwl_mvm_convert_key_counters(struct iwl_wowlan_status_data *status,
1641 union iwl_all_tsc_rsc *sc)
6d9d32b8 1642{
4d4cbb9b 1643 int i;
6d9d32b8 1644
4d4cbb9b
JB		 1645 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
1646 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
6d9d32b8 1647
4d4cbb9b
JB		 1648 /* GTK RX counters */
1649 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1650 iwl_mvm_tkip_sc_to_seq(&sc->tkip.multicast_rsc[i],
2dc97742 1651 &status->gtk_seq[0].tkip.seq[i]);
4d4cbb9b 1652 iwl_mvm_aes_sc_to_seq(&sc->aes.multicast_rsc[i],
2dc97742 1653 &status->gtk_seq[0].aes.seq[i]);
4d4cbb9b 1654 }
2dc97742
JB		 1655 status->gtk_seq[0].valid = true;
1656 status->gtk_seq[0].key_id = -1;
6d9d32b8 1657
4d4cbb9b
JB		 1658 /* PTK TX counter */
1659 status->ptk.tkip.tx_pn = (u64)le16_to_cpu(sc->tkip.tsc.iv16) |
1660 ((u64)le32_to_cpu(sc->tkip.tsc.iv32) << 16);
1661 status->ptk.aes.tx_pn = le64_to_cpu(sc->aes.tsc.pn);
1662
1663 /* PTK RX counters */
1664 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1665 iwl_mvm_tkip_sc_to_seq(&sc->tkip.unicast_rsc[i],
1666 &status->ptk.tkip.seq[i]);
1667 iwl_mvm_aes_sc_to_seq(&sc->aes.unicast_rsc[i],
1668 &status->ptk.aes.seq[i]);
6d9d32b8
JB		 1669 }
1670}
1671
2dc97742
JB		 1672static void
1673iwl_mvm_convert_key_counters_v5_gtk_seq(struct iwl_wowlan_status_data *status,
1674 struct iwl_wowlan_all_rsc_tsc_v5 *sc,
1675 unsigned int idx, unsigned int key_id)
6d9d32b8 1676{
2dc97742
JB		 1677 int tid;
1678
1679 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1680 iwl_mvm_le64_to_tkip_seq(sc->mcast_rsc[idx][tid],
1681 &status->gtk_seq[idx].tkip.seq[tid]);
1682 iwl_mvm_le64_to_aes_seq(sc->mcast_rsc[idx][tid],
1683 &status->gtk_seq[idx].aes.seq[tid]);
1684 }
1685
1686 status->gtk_seq[idx].valid = true;
1687 status->gtk_seq[idx].key_id = key_id;
1688}
1689
1690static void
1691iwl_mvm_convert_key_counters_v5(struct iwl_wowlan_status_data *status,
1692 struct iwl_wowlan_all_rsc_tsc_v5 *sc)
1693{
1694 int i, tid;
1695
1696 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
1697 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
1698 BUILD_BUG_ON(ARRAY_SIZE(sc->mcast_rsc) != ARRAY_SIZE(status->gtk_seq));
1699
1700 /* GTK RX counters */
1701 for (i = 0; i < ARRAY_SIZE(sc->mcast_key_id_map); i++) {
1702 u8 entry = sc->mcast_key_id_map[i];
1703
1704 if (entry < ARRAY_SIZE(sc->mcast_rsc))
1705 iwl_mvm_convert_key_counters_v5_gtk_seq(status, sc,
1706 entry, i);
1707 }
87209b7f 1708
2dc97742
JB		 1709 /* PTK TX counters not needed, assigned in device */
1710
1711 /* PTK RX counters */
1712 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1713 iwl_mvm_le64_to_tkip_seq(sc->ucast_rsc[tid],
1714 &status->ptk.tkip.seq[tid]);
1715 iwl_mvm_le64_to_aes_seq(sc->ucast_rsc[tid],
1716 &status->ptk.aes.seq[tid]);
1717 }
1718}
1719
1720static void iwl_mvm_set_key_rx_seq_idx(struct ieee80211_key_conf *key,
1721 struct iwl_wowlan_status_data *status,
1722 int idx)
1723{
6d9d32b8
JB		 1724 switch (key->cipher) {
1725 case WLAN_CIPHER_SUITE_CCMP:
c7f996eb
JB		 1726 case WLAN_CIPHER_SUITE_GCMP:
1727 case WLAN_CIPHER_SUITE_GCMP_256:
2dc97742 1728 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].aes.seq);
6d9d32b8
JB		 1729 break;
1730 case WLAN_CIPHER_SUITE_TKIP:
2dc97742 1731 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].tkip.seq);
6d9d32b8
JB		 1732 break;
1733 default:
1734 WARN_ON(1);
1735 }
1736}
1737
2dc97742
JB		 1738static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key,
1739 struct iwl_wowlan_status_data *status,
1740 bool installed)
1741{
1742 int i;
1743
1744 for (i = 0; i < ARRAY_SIZE(status->gtk_seq); i++) {
1745 if (!status->gtk_seq[i].valid)
1746 continue;
1747
1748 /* Handle the case where we know the key ID */
1749 if (status->gtk_seq[i].key_id == key->keyidx) {
1750 s8 new_key_id = -1;
1751
1752 if (status->num_of_gtk_rekeys)
1753 new_key_id = status->gtk.flags &
1754 IWL_WOWLAN_GTK_IDX_MASK;
1755
1756 /* Don't install a new key's value to an old key */
1757 if (new_key_id != key->keyidx)
1758 iwl_mvm_set_key_rx_seq_idx(key, status, i);
1759 continue;
1760 }
1761
1762 /* handle the case where we didn't, last key only */
1763 if (status->gtk_seq[i].key_id == -1 &&
1764 (!status->num_of_gtk_rekeys || installed))
1765 iwl_mvm_set_key_rx_seq_idx(key, status, i);
1766 }
1767}
1768
6d9d32b8 1769struct iwl_mvm_d3_gtk_iter_data {
f5e28eac 1770 struct iwl_mvm *mvm;
4d4cbb9b 1771 struct iwl_wowlan_status_data *status;
6d9d32b8
JB		 1772 void *last_gtk;
1773 u32 cipher;
1774 bool find_phase, unhandled_cipher;
1775 int num_keys;
1776};
1777
59fd4bf6 1778static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
6d9d32b8
JB		 1779 struct ieee80211_vif *vif,
1780 struct ieee80211_sta *sta,
1781 struct ieee80211_key_conf *key,
1782 void *_data)
1783{
1784 struct iwl_mvm_d3_gtk_iter_data *data = _data;
4d4cbb9b 1785 struct iwl_wowlan_status_data *status = data->status;
6d9d32b8
JB		 1786
1787 if (data->unhandled_cipher)
1788 return;
1789
1790 switch (key->cipher) {
1791 case WLAN_CIPHER_SUITE_WEP40:
1792 case WLAN_CIPHER_SUITE_WEP104:
1793 /* ignore WEP completely, nothing to do */
1794 return;
1795 case WLAN_CIPHER_SUITE_CCMP:
c7f996eb
JB		 1796 case WLAN_CIPHER_SUITE_GCMP:
1797 case WLAN_CIPHER_SUITE_GCMP_256:
6d9d32b8
JB		 1798 case WLAN_CIPHER_SUITE_TKIP:
1799 /* we support these */
1800 break;
1801 default:
1802 /* everything else (even CMAC for MFP) - disconnect from AP */
1803 data->unhandled_cipher = true;
1804 return;
1805 }
1806
1807 data->num_keys++;
1808
1809 /*
1810 * pairwise key - update sequence counters only;
1811 * note that this assumes no TDLS sessions are active
1812 */
1813 if (sta) {
6d9d32b8
JB		 1814 if (data->find_phase)
1815 return;
1816
1817 switch (key->cipher) {
1818 case WLAN_CIPHER_SUITE_CCMP:
c7f996eb
JB		 1819 case WLAN_CIPHER_SUITE_GCMP:
1820 case WLAN_CIPHER_SUITE_GCMP_256:
4d4cbb9b
JB		 1821 atomic64_set(&key->tx_pn, status->ptk.aes.tx_pn);
1822 iwl_mvm_set_aes_ptk_rx_seq(data->mvm, status, sta, key);
6d9d32b8
JB		 1823 break;
1824 case WLAN_CIPHER_SUITE_TKIP:
4d4cbb9b
JB		 1825 atomic64_set(&key->tx_pn, status->ptk.tkip.tx_pn);
1826 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.tkip.seq);
6d9d32b8
JB		 1827 break;
1828 }
6d9d32b8
JB		 1829
1830 /* that's it for this key */
1831 return;
1832 }
1833
1834 if (data->find_phase) {
1835 data->last_gtk = key;
1836 data->cipher = key->cipher;
1837 return;
1838 }
1839
1840 if (data->status->num_of_gtk_rekeys)
1841 ieee80211_remove_key(key);
87209b7f
JB		 1842
1843 if (data->last_gtk == key)
2dc97742 1844 iwl_mvm_set_key_rx_seq(key, data->status, false);
6d9d32b8
JB		 1845}
1846
1847static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
1848 struct ieee80211_vif *vif,
4d4cbb9b 1849 struct iwl_wowlan_status_data *status)
6d9d32b8
JB		 1850{
1851 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1852 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
f5e28eac 1853 .mvm = mvm,
6d9d32b8
JB		 1854 .status = status,
1855 };
431591cc
EP		 1856 u32 disconnection_reasons =
1857 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1858 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
6d9d32b8
JB		 1859
1860 if (!status || !vif->bss_conf.bssid)
1861 return false;
1862
4d4cbb9b 1863 if (status->wakeup_reasons & disconnection_reasons)
431591cc
EP		 1864 return false;
1865
6d9d32b8
JB		 1866 /* find last GTK that we used initially, if any */
1867 gtkdata.find_phase = true;
1868 ieee80211_iter_keys(mvm->hw, vif,
59fd4bf6 1869 iwl_mvm_d3_update_keys, &gtkdata);
6d9d32b8
JB		 1870 /* not trying to keep connections with MFP/unhandled ciphers */
1871 if (gtkdata.unhandled_cipher)
1872 return false;
1873 if (!gtkdata.num_keys)
cfa88893 1874 goto out;
6d9d32b8
JB		 1875 if (!gtkdata.last_gtk)
1876 return false;
1877
1878 /*
1879 * invalidate all other GTKs that might still exist and update
1880 * the one that we used
1881 */
1882 gtkdata.find_phase = false;
1883 ieee80211_iter_keys(mvm->hw, vif,
59fd4bf6 1884 iwl_mvm_d3_update_keys, &gtkdata);
6d9d32b8 1885
19d9fa7a 1886 IWL_DEBUG_WOWLAN(mvm, "num of GTK rekeying %d\n",
4d4cbb9b 1887 status->num_of_gtk_rekeys);
6d9d32b8
JB		 1888 if (status->num_of_gtk_rekeys) {
1889 struct ieee80211_key_conf *key;
1890 struct {
1891 struct ieee80211_key_conf conf;
1892 u8 key[32];
1893 } conf = {
1894 .conf.cipher = gtkdata.cipher,
2afa6a73 1895 .conf.keyidx =
4d4cbb9b 1896 status->gtk.flags & IWL_WOWLAN_GTK_IDX_MASK,
6d9d32b8 1897 };
11a0513c 1898 __be64 replay_ctr;
6d9d32b8 1899
19d9fa7a
SS		 1900 IWL_DEBUG_WOWLAN(mvm,
1901 "Received from FW GTK cipher %d, key index %d\n",
1902 conf.conf.cipher, conf.conf.keyidx);
4d4cbb9b
JB		 1903
1904 BUILD_BUG_ON(WLAN_KEY_LEN_CCMP != WLAN_KEY_LEN_GCMP);
1905 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_CCMP);
1906 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_GCMP_256);
1907 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_TKIP);
1908 BUILD_BUG_ON(sizeof(conf.key) < sizeof(status->gtk.key));
1909
1910 memcpy(conf.conf.key, status->gtk.key, sizeof(status->gtk.key));
1911
6d9d32b8
JB		 1912 switch (gtkdata.cipher) {
1913 case WLAN_CIPHER_SUITE_CCMP:
c7f996eb 1914 case WLAN_CIPHER_SUITE_GCMP:
6d9d32b8 1915 conf.conf.keylen = WLAN_KEY_LEN_CCMP;
6d9d32b8 1916 break;
c7f996eb 1917 case WLAN_CIPHER_SUITE_GCMP_256:
c7f996eb 1918 conf.conf.keylen = WLAN_KEY_LEN_GCMP_256;
c7f996eb 1919 break;
6d9d32b8
JB		 1920 case WLAN_CIPHER_SUITE_TKIP:
1921 conf.conf.keylen = WLAN_KEY_LEN_TKIP;
6d9d32b8
JB		 1922 break;
1923 }
1924
1925 key = ieee80211_gtk_rekey_add(vif, &conf.conf);
1926 if (IS_ERR(key))
1927 return false;
2dc97742 1928 iwl_mvm_set_key_rx_seq(key, status, true);
6d9d32b8 1929
4d4cbb9b 1930 replay_ctr = cpu_to_be64(status->replay_ctr);
11a0513c 1931
6d9d32b8
JB		 1932 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid,
1933 (void *)&replay_ctr, GFP_KERNEL);
1934 }
1935
cfa88893 1936out:
5b16565a
NG		 1937 if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
1938 WOWLAN_GET_STATUSES, 0) < 10) {
1939 mvmvif->seqno_valid = true;
1940 /* +0x10 because the set API expects next-to-use, not last-used */
4d4cbb9b 1941 mvmvif->seqno = status->non_qos_seq_ctr + 0x10;
5b16565a 1942 }
6d9d32b8
JB		 1943
1944 return true;
1945}
1946
bc68163c
JB		 1947/* Occasionally, templates would be nice. This is one of those times ... */
1948#define iwl_mvm_parse_wowlan_status_common(_ver) \
4d4cbb9b 1949static struct iwl_wowlan_status_data * \
bc68163c 1950iwl_mvm_parse_wowlan_status_common_ ## _ver(struct iwl_mvm *mvm, \
4d4cbb9b
JB		 1951 struct iwl_wowlan_status_ ##_ver *data,\
1952 int len) \
bc68163c 1953{ \
4d4cbb9b
JB		 1954 struct iwl_wowlan_status_data *status; \
1955 int data_size, i; \
bc68163c
JB		 1956 \
1957 if (len < sizeof(*data)) { \
1958 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \
537b76d2 1959 return NULL; \
bc68163c
JB		 1960 } \
1961 \
1962 data_size = ALIGN(le32_to_cpu(data->wake_packet_bufsize), 4); \
1963 if (len != sizeof(*data) + data_size) { \
1964 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \
537b76d2 1965 return NULL; \
bc68163c
JB		 1966 } \
1967 \
1968 status = kzalloc(sizeof(*status) + data_size, GFP_KERNEL); \
1969 if (!status) \
537b76d2 1970 return NULL; \
bc68163c
JB		 1971 \
1972 /* copy all the common fields */ \
4d4cbb9b
JB		 1973 status->replay_ctr = le64_to_cpu(data->replay_ctr); \
1974 status->pattern_number = le16_to_cpu(data->pattern_number); \
1975 status->non_qos_seq_ctr = le16_to_cpu(data->non_qos_seq_ctr); \
1976 for (i = 0; i < 8; i++) \
1977 status->qos_seq_ctr[i] = \
1978 le16_to_cpu(data->qos_seq_ctr[i]); \
1979 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); \
1980 status->num_of_gtk_rekeys = \
1981 le32_to_cpu(data->num_of_gtk_rekeys); \
1982 status->received_beacons = le32_to_cpu(data->received_beacons); \
1983 status->wake_packet_length = \
1984 le32_to_cpu(data->wake_packet_length); \
1985 status->wake_packet_bufsize = \
1986 le32_to_cpu(data->wake_packet_bufsize); \
bc68163c 1987 memcpy(status->wake_packet, data->wake_packet, \
4d4cbb9b 1988 status->wake_packet_bufsize); \
bc68163c
JB		 1989 \
1990 return status; \
1991}
1992
1993iwl_mvm_parse_wowlan_status_common(v6)
1994iwl_mvm_parse_wowlan_status_common(v7)
1995iwl_mvm_parse_wowlan_status_common(v9)
2dc97742 1996iwl_mvm_parse_wowlan_status_common(v12)
bc68163c 1997
4da46a06
HD		 1998static void iwl_mvm_parse_wowlan_info_notif(struct iwl_mvm *mvm,
1999 struct iwl_wowlan_info_notif *data,
2000 struct iwl_wowlan_status_data *status,
2001 u32 len)
2002{
2003 u32 i;
2004
2005 if (len < sizeof(*data)) {
2006 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n");
2007 status = NULL;
2008 return;
2009 }
2010
2011 status->replay_ctr = le64_to_cpu(data->replay_ctr);
2012 status->pattern_number = le16_to_cpu(data->pattern_number);
2013 for (i = 0; i < IWL_MAX_TID_COUNT; i++)
2014 status->qos_seq_ctr[i] =
2015 le16_to_cpu(data->qos_seq_ctr[i]);
2016 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons);
2017 status->num_of_gtk_rekeys =
2018 le32_to_cpu(data->num_of_gtk_rekeys);
2019 status->received_beacons = le32_to_cpu(data->received_beacons);
2020}
2021
2dc97742
JB		 2022static void iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data *status,
2023 struct iwl_wowlan_gtk_status_v2 *data)
4d4cbb9b
JB		 2024{
2025 BUILD_BUG_ON(sizeof(status->gtk.key) < sizeof(data->key));
2026 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2027 sizeof(data->tkip_mic_key) >
2028 sizeof(status->gtk.key));
2029
2030 status->gtk.len = data->key_len;
2031 status->gtk.flags = data->key_flags;
2032
2033 memcpy(status->gtk.key, data->key, sizeof(data->key));
2034
2035 /* if it's as long as the TKIP encryption key, copy MIC key */
2036 if (status->gtk.len == NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY)
2037 memcpy(status->gtk.key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2038 data->tkip_mic_key, sizeof(data->tkip_mic_key));
2039}
2040
2dc97742
JB		 2041static void iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data *status,
2042 struct iwl_wowlan_gtk_status_v3 *data)
2043{
2044 /* The parts we need are identical in v2 and v3 */
2045#define CHECK(_f) do { \
2046 BUILD_BUG_ON(offsetof(struct iwl_wowlan_gtk_status_v2, _f) != \
2047 offsetof(struct iwl_wowlan_gtk_status_v3, _f)); \
2048 BUILD_BUG_ON(offsetofend(struct iwl_wowlan_gtk_status_v2, _f) !=\
2049 offsetofend(struct iwl_wowlan_gtk_status_v3, _f)); \
2050} while (0)
2051
2052 CHECK(key);
2053 CHECK(key_len);
2054 CHECK(key_flags);
2055 CHECK(tkip_mic_key);
2056#undef CHECK
2057
2058 iwl_mvm_convert_gtk_v2(status, (void *)data);
2059}
2060
4d4cbb9b
JB		 2061static void iwl_mvm_convert_igtk(struct iwl_wowlan_status_data *status,
2062 struct iwl_wowlan_igtk_status *data)
2063{
2064 const u8 *ipn = data->ipn;
2065
2066 BUILD_BUG_ON(sizeof(status->igtk.key) < sizeof(data->key));
2067
2068 status->igtk.len = data->key_len;
2069 status->igtk.flags = data->key_flags;
2070
2071 memcpy(status->igtk.key, data->key, sizeof(data->key));
2072
2073 status->igtk.ipn = ((u64)ipn[5] << 0) |
2074 ((u64)ipn[4] << 8) |
2075 ((u64)ipn[3] << 16) |
2076 ((u64)ipn[2] << 24) |
2077 ((u64)ipn[1] << 32) |
2078 ((u64)ipn[0] << 40);
2079}
2080
2081static struct iwl_wowlan_status_data *
5c157941 2082iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id)
2afa6a73 2083{
4d4cbb9b 2084 struct iwl_wowlan_status_data *status;
5c157941
EG		 2085 struct iwl_wowlan_get_status_cmd get_status_cmd = {
2086 .sta_id = cpu_to_le32(sta_id),
2087 };
2afa6a73
LC		 2088 struct iwl_host_cmd cmd = {
2089 .id = WOWLAN_GET_STATUSES,
2090 .flags = CMD_WANT_SKB,
5c157941
EG		 2091 .data = { &get_status_cmd, },
2092 .len = { sizeof(get_status_cmd), },
2afa6a73 2093 };
bc68163c 2094 int ret, len;
250380c9 2095 u8 notif_ver;
971cbe50 2096 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id,
5c157941
EG		 2097 IWL_FW_CMD_VER_UNKNOWN);
2098
2099 if (cmd_ver == IWL_FW_CMD_VER_UNKNOWN)
2100 cmd.len[0] = 0;
2afa6a73
LC		 2101
2102 lockdep_assert_held(&mvm->mutex);
2103
2104 ret = iwl_mvm_send_cmd(mvm, &cmd);
2105 if (ret) {
2106 IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret);
2107 return ERR_PTR(ret);
2108 }
2109
250380c9 2110 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
bc68163c
JB		 2111
2112 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */
d65ab7c0
EG		 2113 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
2114 WOWLAN_GET_STATUSES, 0);
2115 if (!notif_ver)
2116 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,
2117 WOWLAN_GET_STATUSES, 7);
bc68163c 2118
2afa6a73
LC		 2119 if (!fw_has_api(&mvm->fw->ucode_capa,
2120 IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL)) {
2121 struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data;
2afa6a73 2122
4d4cbb9b 2123 status = iwl_mvm_parse_wowlan_status_common_v6(mvm, v6, len);
537b76d2 2124 if (!status)
2afa6a73
LC		 2125 goto out_free_resp;
2126
2127 BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) >
4d4cbb9b
JB		 2128 sizeof(status->gtk.key));
2129 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2130 sizeof(v6->gtk.tkip_mic_key) >
2131 sizeof(status->gtk.key));
2afa6a73
LC		 2132
2133 /* copy GTK info to the right place */
4d4cbb9b 2134 memcpy(status->gtk.key, v6->gtk.decrypt_key,
2afa6a73 2135 sizeof(v6->gtk.decrypt_key));
4d4cbb9b
JB		 2136 memcpy(status->gtk.key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2137 v6->gtk.tkip_mic_key,
2afa6a73 2138 sizeof(v6->gtk.tkip_mic_key));
4d4cbb9b
JB		 2139
2140 iwl_mvm_convert_key_counters(status, &v6->gtk.rsc.all_tsc_rsc);
2afa6a73
LC		 2141
2142 /* hardcode the key length to 16 since v6 only supports 16 */
4d4cbb9b 2143 status->gtk.len = 16;
2afa6a73
LC		 2144
2145 /*
2146 * The key index only uses 2 bits (values 0 to 3) and
2147 * we always set bit 7 which means this is the
2148 * currently used key.
2149 */
4d4cbb9b 2150 status->gtk.flags = v6->gtk.key_index | BIT(7);
bc68163c
JB		 2151 } else if (notif_ver == 7) {
2152 struct iwl_wowlan_status_v7 *v7 = (void *)cmd.resp_pkt->data;
2afa6a73 2153
4d4cbb9b 2154 status = iwl_mvm_parse_wowlan_status_common_v7(mvm, v7, len);
537b76d2 2155 if (!status)
bc68163c 2156 goto out_free_resp;
250380c9 2157
4d4cbb9b 2158 iwl_mvm_convert_key_counters(status, &v7->gtk[0].rsc.all_tsc_rsc);
2dc97742 2159 iwl_mvm_convert_gtk_v2(status, &v7->gtk[0]);
4d4cbb9b 2160 iwl_mvm_convert_igtk(status, &v7->igtk[0]);
058b94dc 2161 } else if (notif_ver == 9 || notif_ver == 10 || notif_ver == 11) {
bc68163c 2162 struct iwl_wowlan_status_v9 *v9 = (void *)cmd.resp_pkt->data;
250380c9 2163
058b94dc
GG		 2164 /* these three command versions have same layout and size, the
2165 * difference is only in a few not used (reserved) fields.
2166 */
4d4cbb9b 2167 status = iwl_mvm_parse_wowlan_status_common_v9(mvm, v9, len);
537b76d2 2168 if (!status)
bc68163c 2169 goto out_free_resp;
2afa6a73 2170
4d4cbb9b 2171 iwl_mvm_convert_key_counters(status, &v9->gtk[0].rsc.all_tsc_rsc);
2dc97742 2172 iwl_mvm_convert_gtk_v2(status, &v9->gtk[0]);
4d4cbb9b 2173 iwl_mvm_convert_igtk(status, &v9->igtk[0]);
2afa6a73 2174
bc68163c 2175 status->tid_tear_down = v9->tid_tear_down;
2dc97742
JB		 2176 } else if (notif_ver == 12) {
2177 struct iwl_wowlan_status_v12 *v12 = (void *)cmd.resp_pkt->data;
2178
2179 status = iwl_mvm_parse_wowlan_status_common_v12(mvm, v12, len);
537b76d2 2180 if (!status)
2dc97742
JB		 2181 goto out_free_resp;
2182
2183 iwl_mvm_convert_key_counters_v5(status, &v12->gtk[0].sc);
2184 iwl_mvm_convert_gtk_v3(status, &v12->gtk[0]);
2185 iwl_mvm_convert_igtk(status, &v12->igtk[0]);
2186
2187 status->tid_tear_down = v12->tid_tear_down;
bc68163c
JB		 2188 } else {
2189 IWL_ERR(mvm,
2190 "Firmware advertises unknown WoWLAN status response %d!\n",
2191 notif_ver);
537b76d2 2192 status = NULL;
2afa6a73
LC		 2193 }
2194
2afa6a73
LC		 2195out_free_resp:
2196 iwl_free_resp(&cmd);
2197 return status;
2198}
2199
4d4cbb9b 2200static struct iwl_wowlan_status_data *
5c157941 2201iwl_mvm_get_wakeup_status(struct iwl_mvm *mvm, u8 sta_id)
7abc4632 2202{
971cbe50 2203 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, OFFLOADS_QUERY_CMD,
5c157941
EG		 2204 IWL_FW_CMD_VER_UNKNOWN);
2205 __le32 station_id = cpu_to_le32(sta_id);
2206 u32 cmd_size = cmd_ver != IWL_FW_CMD_VER_UNKNOWN ? sizeof(station_id) : 0;
7abc4632 2207
b60bc716
EG		 2208 if (!mvm->net_detect) {
2209 /* only for tracing for now */
2210 int ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, 0,
5c157941 2211 cmd_size, &station_id);
b60bc716
EG		 2212 if (ret)
2213 IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret);
2214 }
7abc4632 2215
5c157941 2216 return iwl_mvm_send_wowlan_get_status(mvm, sta_id);
ec12f457
LC		 2217}
2218
2219/* releases the MVM mutex */
2220static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
4da46a06
HD		 2221 struct ieee80211_vif *vif,
2222 struct iwl_wowlan_status_data *status)
ec12f457 2223{
ec12f457
LC		 2224 int i;
2225 bool keep;
ec12f457
LC		 2226 struct iwl_mvm_sta *mvm_ap_sta;
2227
537b76d2 2228 if (!status)
ec12f457 2229 goto out_unlock;
3afec639 2230
19d9fa7a 2231 IWL_DEBUG_WOWLAN(mvm, "wakeup reason 0x%x\n",
4d4cbb9b 2232 status->wakeup_reasons);
7abc4632 2233
6d9d32b8 2234 /* still at hard-coded place 0 for D3 image */
13303c0f
SS		 2235 mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, 0);
2236 if (!mvm_ap_sta)
4da46a06 2237 goto out_unlock;
6d9d32b8 2238
6d9d32b8 2239 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
4d4cbb9b 2240 u16 seq = status->qos_seq_ctr[i];
6d9d32b8
JB		 2241 /* firmware stores last-used value, we store next value */
2242 seq += 0x10;
2243 mvm_ap_sta->tid_data[i].seq_number = seq;
2244 }
2245
286ca8eb 2246 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) {
ba7136f3
AM		 2247 i = mvm->offload_tid;
2248 iwl_trans_set_q_ptrs(mvm->trans,
2249 mvm_ap_sta->tid_data[i].txq_id,
2250 mvm_ap_sta->tid_data[i].seq_number >> 4);
2251 }
2252
7abc4632
JB		 2253 /* now we have all the data we need, unlock to avoid mac80211 issues */
2254 mutex_unlock(&mvm->mutex);
2255
4d4cbb9b 2256 iwl_mvm_report_wakeup_reasons(mvm, vif, status);
6d9d32b8 2257
4d4cbb9b 2258 keep = iwl_mvm_setup_connection_keep(mvm, vif, status);
6d9d32b8 2259
6d9d32b8 2260 return keep;
7abc4632 2261
ec12f457 2262out_unlock:
7abc4632 2263 mutex_unlock(&mvm->mutex);
6d9d32b8 2264 return false;
9b26b500
JB		 2265}
2266
e4fe5d4b
IP		 2267#define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \
2268 IWL_SCAN_MAX_PROFILES)
2269
8ed4e659
LC		 2270struct iwl_mvm_nd_query_results {
2271 u32 matched_profiles;
e4fe5d4b 2272 u8 matches[ND_QUERY_BUF_LEN];
8ed4e659
LC		 2273};
2274
2275static int
2276iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
2277 struct iwl_mvm_nd_query_results *results)
b04998f3
LC		 2278{
2279 struct iwl_scan_offload_profiles_query *query;
2280 struct iwl_host_cmd cmd = {
2281 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD,
2282 .flags = CMD_WANT_SKB,
2283 };
2284 int ret, len;
e4fe5d4b 2285 size_t query_len, matches_len;
5d1234ba 2286 int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw);
b04998f3
LC		 2287
2288 ret = iwl_mvm_send_cmd(mvm, &cmd);
2289 if (ret) {
2290 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret);
8ed4e659 2291 return ret;
b04998f3
LC		 2292 }
2293
e4fe5d4b
IP		 2294 if (fw_has_api(&mvm->fw->ucode_capa,
2295 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2296 query_len = sizeof(struct iwl_scan_offload_profiles_query);
2297 matches_len = sizeof(struct iwl_scan_offload_profile_match) *
5d1234ba 2298 max_profiles;
e4fe5d4b
IP		 2299 } else {
2300 query_len = sizeof(struct iwl_scan_offload_profiles_query_v1);
2301 matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) *
5d1234ba 2302 max_profiles;
e4fe5d4b
IP		 2303 }
2304
b04998f3 2305 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
e4fe5d4b 2306 if (len < query_len) {
b04998f3 2307 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");
8ed4e659 2308 ret = -EIO;
b04998f3
LC		 2309 goto out_free_resp;
2310 }
2311
2312 query = (void *)cmd.resp_pkt->data;
2313
8ed4e659 2314 results->matched_profiles = le32_to_cpu(query->matched_profiles);
e4fe5d4b 2315 memcpy(results->matches, query->matches, matches_len);
b04998f3 2316
6bbd5521 2317#ifdef CONFIG_IWLWIFI_DEBUGFS
484b3d13
LC		 2318 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done);
2319#endif
2320
b04998f3
LC		 2321out_free_resp:
2322 iwl_free_resp(&cmd);
2323 return ret;
2324}
2325
e4fe5d4b
IP		 2326static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm,
2327 struct iwl_mvm_nd_query_results *query,
2328 int idx)
2329{
2330 int n_chans = 0, i;
2331
2332 if (fw_has_api(&mvm->fw->ucode_capa,
2333 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2334 struct iwl_scan_offload_profile_match *matches =
2335 (struct iwl_scan_offload_profile_match *)query->matches;
2336
2337 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++)
2338 n_chans += hweight8(matches[idx].matching_channels[i]);
2339 } else {
2340 struct iwl_scan_offload_profile_match_v1 *matches =
2341 (struct iwl_scan_offload_profile_match_v1 *)query->matches;
2342
2343 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++)
2344 n_chans += hweight8(matches[idx].matching_channels[i]);
2345 }
2346
2347 return n_chans;
2348}
2349
2350static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm,
2351 struct iwl_mvm_nd_query_results *query,
2352 struct cfg80211_wowlan_nd_match *match,
2353 int idx)
2354{
2355 int i;
2356
2357 if (fw_has_api(&mvm->fw->ucode_capa,
2358 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2359 struct iwl_scan_offload_profile_match *matches =
2360 (struct iwl_scan_offload_profile_match *)query->matches;
2361
2362 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++)
2363 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2364 match->channels[match->n_channels++] =
2365 mvm->nd_channels[i]->center_freq;
2366 } else {
2367 struct iwl_scan_offload_profile_match_v1 *matches =
2368 (struct iwl_scan_offload_profile_match_v1 *)query->matches;
2369
2370 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++)
2371 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2372 match->channels[match->n_channels++] =
2373 mvm->nd_channels[i]->center_freq;
2374 }
2375}
2376
2021a89d 2377static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
4da46a06
HD		 2378 struct ieee80211_vif *vif,
2379 struct iwl_wowlan_status_data *status)
2021a89d 2380{
d9718da8 2381 struct cfg80211_wowlan_nd_info *net_detect = NULL;
2021a89d
LC		 2382 struct cfg80211_wowlan_wakeup wakeup = {
2383 .pattern_idx = -1,
2384 };
2385 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
8ed4e659 2386 struct iwl_mvm_nd_query_results query;
d9718da8 2387 unsigned long matched_profiles;
2021a89d 2388 u32 reasons = 0;
e4fe5d4b 2389 int i, n_matches, ret;
2021a89d 2390
4da46a06
HD		 2391 if (WARN_ON(!status))
2392 return;
2393
2394 reasons = status->wakeup_reasons;
2021a89d
LC		 2395
2396 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
2397 wakeup.rfkill_release = true;
2398
b04998f3
LC		 2399 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS)
2400 goto out;
2401
8ed4e659
LC		 2402 ret = iwl_mvm_netdetect_query_results(mvm, &query);
2403 if (ret || !query.matched_profiles) {
2021a89d 2404 wakeup_report = NULL;
b04998f3 2405 goto out;
2021a89d
LC		 2406 }
2407
8ed4e659 2408 matched_profiles = query.matched_profiles;
d9718da8
LC		 2409 if (mvm->n_nd_match_sets) {
2410 n_matches = hweight_long(matched_profiles);
2411 } else {
2412 IWL_ERR(mvm, "no net detect match information available\n");
2413 n_matches = 0;
2414 }
2415
83ea00d6 2416 net_detect = kzalloc(struct_size(net_detect, matches, n_matches),
d9718da8
LC		 2417 GFP_KERNEL);
2418 if (!net_detect || !n_matches)
2419 goto out_report_nd;
2420
2421 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) {
2422 struct cfg80211_wowlan_nd_match *match;
ae90c2e5 2423 int idx, n_channels = 0;
8ed4e659 2424
e4fe5d4b 2425 n_channels = iwl_mvm_query_num_match_chans(mvm, &query, i);
d9718da8 2426
83ea00d6 2427 match = kzalloc(struct_size(match, channels, n_channels),
8ed4e659 2428 GFP_KERNEL);
d9718da8
LC		 2429 if (!match)
2430 goto out_report_nd;
2431
8ed4e659
LC		 2432 net_detect->matches[net_detect->n_matches++] = match;
2433
ae90c2e5
LC		 2434 /* We inverted the order of the SSIDs in the scan
2435 * request, so invert the index here.
2436 */
2437 idx = mvm->n_nd_match_sets - i - 1;
2438 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len;
2439 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid,
d9718da8
LC		 2440 match->ssid.ssid_len);
2441
8ed4e659
LC		 2442 if (mvm->n_nd_channels < n_channels)
2443 continue;
2444
e4fe5d4b 2445 iwl_mvm_query_set_freqs(mvm, &query, match, i);
d9718da8
LC		 2446 }
2447
2448out_report_nd:
2449 wakeup.net_detect = net_detect;
b04998f3 2450out:
d9718da8
LC		 2451 iwl_mvm_free_nd(mvm);
2452
2021a89d
LC		 2453 mutex_unlock(&mvm->mutex);
2454 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
d9718da8
LC		 2455
2456 if (net_detect) {
2457 for (i = 0; i < net_detect->n_matches; i++)
2458 kfree(net_detect->matches[i]);
2459 kfree(net_detect);
2460 }
2021a89d
LC		 2461}
2462
6d9d32b8
JB		 2463static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
2464 struct ieee80211_vif *vif)
2465{
2466 /* skip the one we keep connection on */
2467 if (data == vif)
2468 return;
2469
2470 if (vif->type == NL80211_IFTYPE_STATION)
2471 ieee80211_resume_disconnect(vif);
2472}
2473
577ddbee 2474static bool iwl_mvm_rt_status(struct iwl_trans *trans, u32 base, u32 *err_id)
f57d104f 2475{
f57d104f
SM		 2476 struct error_table_start {
2477 /* cf. struct iwl_error_event_table */
2478 u32 valid;
577ddbee 2479 __le32 err_id;
f57d104f
SM		 2480 } err_info;
2481
577ddbee
MG		 2482 if (!base)
2483 return false;
2484
2485 iwl_trans_read_mem_bytes(trans, base,
f57d104f 2486 &err_info, sizeof(err_info));
577ddbee
MG		 2487 if (err_info.valid && err_id)
2488 *err_id = le32_to_cpu(err_info.err_id);
f57d104f 2489
577ddbee
MG		 2490 return !!err_info.valid;
2491}
2492
2493static bool iwl_mvm_check_rt_status(struct iwl_mvm *mvm,
2494 struct ieee80211_vif *vif)
2495{
2496 u32 err_id;
2497
2498 /* check for lmac1 error */
2499 if (iwl_mvm_rt_status(mvm->trans,
2500 mvm->trans->dbg.lmac_error_event_table[0],
2501 &err_id)) {
2502 if (err_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
2503 struct cfg80211_wowlan_wakeup wakeup = {
2504 .rfkill_release = true,
2505 };
2506 ieee80211_report_wowlan_wakeup(vif, &wakeup,
2507 GFP_KERNEL);
2508 }
2509 return true;
f57d104f 2510 }
577ddbee
MG		 2511
2512 /* check if we have lmac2 set and check for error */
2513 if (iwl_mvm_rt_status(mvm->trans,
2514 mvm->trans->dbg.lmac_error_event_table[1], NULL))
2515 return true;
2516
2517 /* check for umac error */
2518 if (iwl_mvm_rt_status(mvm->trans,
2519 mvm->trans->dbg.umac_error_event_table, NULL))
2520 return true;
2521
2522 return false;
f57d104f
SM		 2523}
2524
4da46a06
HD		 2525/**
2526 * enum iwl_d3_notif - d3 notifications
2527 * @IWL_D3_NOTIF_WOWLAN_INFO: WOWLAN_INFO_NOTIF was received
2528 */
2529enum iwl_d3_notif {
2530 IWL_D3_NOTIF_WOWLAN_INFO = BIT(0),
2531};
2532
2533/* manage d3 resume data */
2534struct iwl_d3_data {
2535 struct iwl_wowlan_status_data *status;
2536 bool test;
2537 u32 notif_expected; /* bitmap - see &enum iwl_d3_notif */
2538 u32 notif_received; /* bitmap - see &enum iwl_d3_notif */
2539};
2540
2541/*
2542 * This function assumes:
2543 * 1. The mutex is already held.
2544 * 2. The callee functions unlock the mutex.
2545 */
2546static void iwl_mvm_choose_query_wakeup_reasons(struct iwl_mvm *mvm,
2547 struct ieee80211_vif *vif,
2548 struct iwl_d3_data *d3_data,
2549 bool test)
2550{
2551 lockdep_assert_held(&mvm->mutex);
2552
2553 /* if FW uses status notification, status shouldn't be NULL here */
2554 if (!d3_data->status) {
2555 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2556
2557 d3_data->status = iwl_mvm_get_wakeup_status(mvm, mvm->net_detect ?
2558 IWL_MVM_INVALID_STA :
2559 mvmvif->ap_sta_id);
2560 }
2561
2562 if (mvm->net_detect) {
2563 iwl_mvm_query_netdetect_reasons(mvm, vif, d3_data->status);
2564 } else {
2565 bool keep = iwl_mvm_query_wakeup_reasons(mvm, vif,
2566 d3_data->status);
2567
2568#ifdef CONFIG_IWLWIFI_DEBUGFS
2569 if (keep)
2570 mvm->keep_vif = vif;
2571#endif
2572
2573 if (!test)
2574 ieee80211_iterate_active_interfaces_mtx(mvm->hw,
2575 IEEE80211_IFACE_ITER_NORMAL,
2576 iwl_mvm_d3_disconnect_iter,
2577 keep ? vif : NULL);
2578 }
2579}
2580
2581static bool iwl_mvm_wait_d3_notif(struct iwl_notif_wait_data *notif_wait,
2582 struct iwl_rx_packet *pkt, void *data)
2583{
2584 struct iwl_mvm *mvm =
2585 container_of(notif_wait, struct iwl_mvm, notif_wait);
2586 struct iwl_d3_data *d3_data = data;
2587 u32 len;
2588
2589 switch (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) {
2590 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION): {
2591 struct iwl_wowlan_info_notif *notif = (void *)pkt->data;
2592
2593 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_INFO) {
2594 /* We might get two notifications due to dual bss */
2595 IWL_DEBUG_WOWLAN(mvm,
2596 "Got additional wowlan info notification\n");
2597 break;
2598 }
2599
2600 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_INFO;
2601 len = iwl_rx_packet_payload_len(pkt);
2602 iwl_mvm_parse_wowlan_info_notif(mvm, notif, d3_data->status,
2603 len);
2604 break;
2605 }
2606 default:
2607 WARN_ON(1);
2608 }
2609
2610 return d3_data->notif_received == d3_data->notif_expected;
2611}
2612
2613#define IWL_MVM_D3_NOTIF_TIMEOUT (HZ / 5)
2614
2615static int iwl_mvm_d3_notif_wait(struct iwl_mvm *mvm,
2616 struct iwl_d3_data *d3_data,
2617 enum iwl_d3_status *d3_status,
2618 bool test)
2619{
2620 static const u16 d3_resume_notif[] = {
2621 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION)
2622 };
2623 struct iwl_notification_wait wait_d3_notif;
2624 int ret;
2625
2626 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif,
2627 d3_resume_notif, ARRAY_SIZE(d3_resume_notif),
2628 iwl_mvm_wait_d3_notif, d3_data);
2629
2630 ret = iwl_trans_d3_resume(mvm->trans, d3_status, test, false);
2631 if (ret) {
2632 iwl_remove_notification(&mvm->notif_wait, &wait_d3_notif);
2633 return ret;
2634 }
2635
2636 if (*d3_status != IWL_D3_STATUS_ALIVE) {
2637 IWL_INFO(mvm, "Device was reset during suspend\n");
2638 iwl_remove_notification(&mvm->notif_wait, &wait_d3_notif);
2639 return -ENOENT;
2640 }
2641
2642 return iwl_wait_notification(&mvm->notif_wait, &wait_d3_notif,
2643 IWL_MVM_D3_NOTIF_TIMEOUT);
2644}
2645
debff618 2646static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
8ca151b5 2647{
8ca151b5 2648 struct ieee80211_vif *vif = NULL;
23ae6128 2649 int ret = 1;
8ca151b5 2650 enum iwl_d3_status d3_status;
4da46a06
HD		 2651 struct iwl_d3_data d3_data = {
2652 .test = test,
2653 .notif_expected = IWL_D3_NOTIF_WOWLAN_INFO,
2654 };
23ae6128
MG		 2655 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2656 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
fcea37b2
LC		 2657 bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa,
2658 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST);
4da46a06
HD		 2659 /* currently disabled */
2660 bool resume_notif_based = false;
8ca151b5
JB		 2661
2662 mutex_lock(&mvm->mutex);
2663
e8fe3b41
IP		 2664 mvm->last_reset_or_resume_time_jiffies = jiffies;
2665
8ca151b5 2666 /* get the BSS vif pointer again */
7f549e2c
LC		 2667 vif = iwl_mvm_get_bss_vif(mvm);
2668 if (IS_ERR_OR_NULL(vif))
a500e469 2669 goto err;
8ca151b5 2670
2d8c2615 2671 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
afc66bb7 2672
f57d104f
SM		 2673 if (iwl_mvm_check_rt_status(mvm, vif)) {
2674 set_bit(STATUS_FW_ERROR, &mvm->trans->status);
2675 iwl_mvm_dump_nic_error_log(mvm);
4d75a9eb
SM		 2676 iwl_dbg_tlv_time_point(&mvm->fwrt,
2677 IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL);
f57d104f 2678 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
124e0eba 2679 false, 0);
f57d104f
SM		 2680 ret = 1;
2681 goto err;
2682 }
2683
4da46a06
HD		 2684 if (resume_notif_based) {
2685 d3_data.status = kzalloc(sizeof(*d3_data.status), GFP_KERNEL);
2686 if (!d3_data.status) {
2687 IWL_ERR(mvm, "Failed to allocate wowlan status\n");
2688 ret = -ENOMEM;
2689 goto err;
2690 }
2691
2692 ret = iwl_mvm_d3_notif_wait(mvm, &d3_data, &d3_status, test);
2693 } else {
2694 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test,
2695 !unified_image);
2696 }
2697
e5f3f215
HD		 2698 if (ret)
2699 goto err;
2700
2701 if (d3_status != IWL_D3_STATUS_ALIVE) {
2702 IWL_INFO(mvm, "Device was reset during suspend\n");
2703 goto err;
2704 }
2705
4da46a06 2706 if (d0i3_first && mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_22000) {
d3b4dc01
HD		 2707 struct iwl_host_cmd cmd = {
2708 .id = D0I3_END_CMD,
708a39aa 2709 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
d3b4dc01 2710 };
d3b4dc01
HD		 2711
2712 ret = iwl_mvm_send_cmd(mvm, &cmd);
fcea37b2
LC		 2713 if (ret < 0) {
2714 IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n",
2715 ret);
2716 goto err;
2717 }
2718 }
2719
2f629a77 2720 /* after the successful handshake, we're out of D3 */
708a39aa
HD		 2721 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2722
47c8b154
JD		 2723 /*
2724 * Query the current location and source from the D3 firmware so we
2725 * can play it back when we re-intiailize the D0 firmware
2726 */
2727 iwl_mvm_update_changed_regdom(mvm);
2728
6ce1e5c0
GA		 2729 /* Re-configure PPAG settings */
2730 iwl_mvm_ppag_send_cmd(mvm);
2731
42ce76d6
LC		 2732 if (!unified_image)
2733 /* Re-configure default SAR profile */
2734 iwl_mvm_sar_select_profile(mvm, 1, 1);
2735
4da46a06 2736 if (mvm->net_detect && unified_image) {
5a143db8
LC		 2737 /* If this is a non-unified image, we restart the FW,
2738 * so no need to stop the netdetect scan. If that
2739 * fails, continue and try to get the wake-up reasons,
2740 * but trigger a HW restart by keeping a failure code
2741 * in ret.
2742 */
4da46a06
HD		 2743 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT,
2744 false);
2021a89d 2745 }
8ca151b5 2746
4da46a06
HD		 2747 iwl_mvm_choose_query_wakeup_reasons(mvm, vif, &d3_data, d3_data.test);
2748 /* has unlocked the mutex, so skip that */
2749 goto out;
2750
a500e469 2751err:
8ca151b5 2752 mutex_unlock(&mvm->mutex);
e0ede177 2753out:
4da46a06
HD		 2754 kfree(d3_data.status);
2755 iwl_mvm_free_nd(mvm);
2756
96d2bfb7
ST		 2757 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
2758
fcea37b2 2759 /* no need to reset the device in unified images, if successful */
23ae6128 2760 if (unified_image && !ret) {
fcea37b2
LC		 2761 /* nothing else to do if we already sent D0I3_END_CMD */
2762 if (d0i3_first)
2763 return 0;
2764
f28b9361 2765 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL);
fcea37b2 2766 if (!ret)
23ae6128
MG		 2767 return 0;
2768 }
2769
2770 /*
2771 * Reconfigure the device in one of the following cases:
2772 * 1. We are not using a unified image
2773 * 2. We are using a unified image but had an error while exiting D3
2774 */
59cd827f 2775 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
23ae6128 2776
2f629a77
JB		 2777 /* regardless of what happened, we're now out of D3 */
2778 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2779
8ca151b5
JB		 2780 return 1;
2781}
2782
2d42801b
EP		 2783int iwl_mvm_resume(struct ieee80211_hw *hw)
2784{
2785 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b7282643 2786 int ret;
2d42801b 2787
34b79fcf 2788 ret = __iwl_mvm_resume(mvm, false);
b7282643 2789
7d9d0d56
LC		 2790 iwl_mvm_resume_tcm(mvm);
2791
7f8ae00f
HD		 2792 iwl_fw_runtime_resume(&mvm->fwrt);
2793
b7282643 2794 return ret;
debff618
JB		 2795}
2796
8ca151b5
JB		 2797void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
2798{
2799 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2800
2801 device_set_wakeup_enable(mvm->trans->dev, enabled);
2802}
debff618
JB		 2803
2804#ifdef CONFIG_IWLWIFI_DEBUGFS
2805static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
2806{
2807 struct iwl_mvm *mvm = inode->i_private;
2808 int err;
2809
2810 if (mvm->d3_test_active)
2811 return -EBUSY;
2812
2813 file->private_data = inode->i_private;
2814
7d9d0d56
LC		 2815 iwl_mvm_pause_tcm(mvm, true);
2816
7f8ae00f
HD		 2817 iwl_fw_runtime_suspend(&mvm->fwrt);
2818
debff618
JB		 2819 /* start pseudo D3 */
2820 rtnl_lock();
59e1221f 2821 wiphy_lock(mvm->hw->wiphy);
debff618 2822 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
59e1221f 2823 wiphy_unlock(mvm->hw->wiphy);
debff618
JB		 2824 rtnl_unlock();
2825 if (err > 0)
2826 err = -EINVAL;
cfbc6c4c 2827 if (err)
debff618 2828 return err;
cfbc6c4c 2829
debff618 2830 mvm->d3_test_active = true;
78c9df66 2831 mvm->keep_vif = NULL;
debff618
JB		 2832 return 0;
2833}
2834
2835static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
2836 size_t count, loff_t *ppos)
2837{
2838 struct iwl_mvm *mvm = file->private_data;
2839 u32 pme_asserted;
2840
2841 while (true) {
4ed80a86
EP		 2842 /* read pme_ptr if available */
2843 if (mvm->d3_test_pme_ptr) {
2844 pme_asserted = iwl_trans_read_mem32(mvm->trans,
2845 mvm->d3_test_pme_ptr);
2846 if (pme_asserted)
2847 break;
2848 }
2849
debff618
JB		 2850 if (msleep_interruptible(100))
2851 break;
2852 }
2853
2854 return 0;
2855}
2856
2857static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
2858 struct ieee80211_vif *vif)
2859{
78c9df66
EP		 2860 /* skip the one we keep connection on */
2861 if (_data == vif)
2862 return;
2863
debff618
JB		 2864 if (vif->type == NL80211_IFTYPE_STATION)
2865 ieee80211_connection_loss(vif);
2866}
2867
2868static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
2869{
2870 struct iwl_mvm *mvm = inode->i_private;
85cd69b8
LC		 2871 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2872 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
debff618
JB		 2873
2874 mvm->d3_test_active = false;
b7282643 2875
2d8c2615
SM		 2876 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
2877
31ca09dd 2878 rtnl_lock();
59e1221f 2879 wiphy_lock(mvm->hw->wiphy);
debff618 2880 __iwl_mvm_resume(mvm, true);
59e1221f 2881 wiphy_unlock(mvm->hw->wiphy);
31ca09dd 2882 rtnl_unlock();
b7282643 2883
7d9d0d56
LC		 2884 iwl_mvm_resume_tcm(mvm);
2885
7f8ae00f
HD		 2886 iwl_fw_runtime_resume(&mvm->fwrt);
2887
debff618 2888 iwl_abort_notification_waits(&mvm->notif_wait);
85cd69b8
LC		 2889 if (!unified_image) {
2890 int remaining_time = 10;
debff618 2891
85cd69b8
LC		 2892 ieee80211_restart_hw(mvm->hw);
2893
2894 /* wait for restart and disconnect all interfaces */
2895 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2896 remaining_time > 0) {
2897 remaining_time--;
2898 msleep(1000);
2899 }
debff618 2900
85cd69b8
LC		 2901 if (remaining_time == 0)
2902 IWL_ERR(mvm, "Timed out waiting for HW restart!\n");
2903 }
debff618
JB		 2904
2905 ieee80211_iterate_active_interfaces_atomic(
2906 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
78c9df66 2907 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif);
debff618 2908
debff618
JB		 2909 return 0;
2910}
2911
2912const struct file_operations iwl_dbgfs_d3_test_ops = {
2913 .llseek = no_llseek,
2914 .open = iwl_mvm_d3_test_open,
2915 .read = iwl_mvm_d3_test_read,
2916 .release = iwl_mvm_d3_test_release,
2917};
2918#endif
Linux 6.x block layer and io_uring tree(s)