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Merge tag 'x86-asm-2024-03-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
[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/*
60555ea4 3 * Copyright (C) 2012-2014, 2018-2023 Intel Corporation
8e99ea8d
JB		 4 * Copyright (C) 2013-2015 Intel Mobile Communications GmbH
5 * Copyright (C) 2016-2017 Intel Deutschland GmbH
6 */
f444eb10 7#include <linux/etherdevice.h>
f0c2646a 8#include <linux/ip.h>
debff618 9#include <linux/fs.h>
8ca151b5
JB		 10#include <net/cfg80211.h>
11#include <net/ipv6.h>
f0c2646a 12#include <net/tcp.h>
f7fc5989 13#include <net/addrconf.h>
8ca151b5
JB		 14#include "iwl-modparams.h"
15#include "fw-api.h"
16#include "mvm.h"
9e3c3936 17#include "fw/img.h"
8ca151b5
JB		 18
19void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
20 struct ieee80211_vif *vif,
21 struct cfg80211_gtk_rekey_data *data)
22{
23 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
24 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
25
8ca151b5
JB		 26 mutex_lock(&mvm->mutex);
27
2a42aea7
NE		 28 mvmvif->rekey_data.kek_len = data->kek_len;
29 mvmvif->rekey_data.kck_len = data->kck_len;
30 memcpy(mvmvif->rekey_data.kek, data->kek, data->kek_len);
31 memcpy(mvmvif->rekey_data.kck, data->kck, data->kck_len);
32 mvmvif->rekey_data.akm = data->akm & 0xFF;
8ca151b5 33 mvmvif->rekey_data.replay_ctr =
86e8e657 34 cpu_to_le64(be64_to_cpup((const __be64 *)data->replay_ctr));
8ca151b5
JB		 35 mvmvif->rekey_data.valid = true;
36
37 mutex_unlock(&mvm->mutex);
38}
39
40#if IS_ENABLED(CONFIG_IPV6)
41void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
42 struct ieee80211_vif *vif,
43 struct inet6_dev *idev)
44{
45 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
46 struct inet6_ifaddr *ifa;
47 int idx = 0;
48
c97dab40
SS		 49 memset(mvmvif->tentative_addrs, 0, sizeof(mvmvif->tentative_addrs));
50
a3777e0f 51 read_lock_bh(&idev->lock);
8ca151b5
JB		 52 list_for_each_entry(ifa, &idev->addr_list, if_list) {
53 mvmvif->target_ipv6_addrs[idx] = ifa->addr;
c97dab40
SS		 54 if (ifa->flags & IFA_F_TENTATIVE)
55 __set_bit(idx, mvmvif->tentative_addrs);
8ca151b5 56 idx++;
5369d6c1 57 if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX)
8ca151b5
JB		 58 break;
59 }
a3777e0f 60 read_unlock_bh(&idev->lock);
8ca151b5
JB		 61
62 mvmvif->num_target_ipv6_addrs = idx;
63}
64#endif
65
66void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
67 struct ieee80211_vif *vif, int idx)
68{
69 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
70
71 mvmvif->tx_key_idx = idx;
72}
73
74static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out)
75{
76 int i;
77
78 for (i = 0; i < IWL_P1K_SIZE; i++)
79 out[i] = cpu_to_le16(p1k[i]);
80}
81
f5e28eac
JB		 82static const u8 *iwl_mvm_find_max_pn(struct ieee80211_key_conf *key,
83 struct iwl_mvm_key_pn *ptk_pn,
84 struct ieee80211_key_seq *seq,
85 int tid, int queues)
86{
87 const u8 *ret = seq->ccmp.pn;
88 int i;
89
90 /* get the PN from mac80211, used on the default queue */
91 ieee80211_get_key_rx_seq(key, tid, seq);
92
93 /* and use the internal data for the other queues */
94 for (i = 1; i < queues; i++) {
95 const u8 *tmp = ptk_pn->q[i].pn[tid];
96
97 if (memcmp(ret, tmp, IEEE80211_CCMP_PN_LEN) <= 0)
98 ret = tmp;
99 }
100
101 return ret;
102}
103
af3aab9c
JB		 104struct wowlan_key_reprogram_data {
105 bool error;
5312e54d 106 int wep_key_idx;
8ca151b5
JB		 107};
108
109static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw,
110 struct ieee80211_vif *vif,
111 struct ieee80211_sta *sta,
112 struct ieee80211_key_conf *key,
113 void *_data)
114{
115 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
116 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
af3aab9c 117 struct wowlan_key_reprogram_data *data = _data;
631ee512 118 int ret;
8ca151b5 119
8ca151b5
JB		 120 switch (key->cipher) {
121 case WLAN_CIPHER_SUITE_WEP40:
122 case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */
123 struct {
124 struct iwl_mvm_wep_key_cmd wep_key_cmd;
125 struct iwl_mvm_wep_key wep_key;
126 } __packed wkc = {
127 .wep_key_cmd.mac_id_n_color =
128 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
129 mvmvif->color)),
130 .wep_key_cmd.num_keys = 1,
131 /* firmware sets STA_KEY_FLG_WEP_13BYTES */
132 .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP,
133 .wep_key.key_index = key->keyidx,
134 .wep_key.key_size = key->keylen,
135 };
136
137 /*
138 * This will fail -- the key functions don't set support
139 * pairwise WEP keys. However, that's better than silently
140 * failing WoWLAN. Or maybe not?
141 */
142 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
143 break;
144
145 memcpy(&wkc.wep_key.key[3], key->key, key->keylen);
146 if (key->keyidx == mvmvif->tx_key_idx) {
147 /* TX key must be at offset 0 */
148 wkc.wep_key.key_offset = 0;
149 } else {
150 /* others start at 1 */
5312e54d
JB		 151 data->wep_key_idx++;
152 wkc.wep_key.key_offset = data->wep_key_idx;
8ca151b5
JB		 153 }
154
af3aab9c
JB		 155 mutex_lock(&mvm->mutex);
156 ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0, sizeof(wkc), &wkc);
157 data->error = ret != 0;
158
159 mvm->ptk_ivlen = key->iv_len;
160 mvm->ptk_icvlen = key->icv_len;
161 mvm->gtk_ivlen = key->iv_len;
162 mvm->gtk_icvlen = key->icv_len;
b6a46b4f 163 mutex_unlock(&mvm->mutex);
f444eb10 164
8ca151b5 165 /* don't upload key again */
ac8ef0ce 166 return;
8ca151b5
JB		 167 }
168 default:
169 data->error = true;
ac8ef0ce 170 return;
2a42aea7
NE		 171 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
172 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2a42aea7 173 return;
8ca151b5
JB		 174 case WLAN_CIPHER_SUITE_AES_CMAC:
175 /*
176 * Ignore CMAC keys -- the WoWLAN firmware doesn't support them
177 * but we also shouldn't abort suspend due to that. It does have
178 * support for the IGTK key renewal, but doesn't really use the
179 * IGTK for anything. This means we could spuriously wake up or
180 * be deauthenticated, but that was considered acceptable.
181 */
ac8ef0ce 182 return;
631ee512 183 case WLAN_CIPHER_SUITE_TKIP:
631ee512
JB		 184 case WLAN_CIPHER_SUITE_CCMP:
185 case WLAN_CIPHER_SUITE_GCMP:
186 case WLAN_CIPHER_SUITE_GCMP_256:
631ee512
JB		 187 break;
188 }
189
af3aab9c
JB		 190 mutex_lock(&mvm->mutex);
191 /*
192 * The D3 firmware hardcodes the key offset 0 as the key it
193 * uses to transmit packets to the AP, i.e. the PTK.
194 */
195 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
196 mvm->ptk_ivlen = key->iv_len;
197 mvm->ptk_icvlen = key->icv_len;
198 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 0);
199 } else {
631ee512 200 /*
af3aab9c
JB		 201 * firmware only supports TSC/RSC for a single key,
202 * so if there are multiple keep overwriting them
203 * with new ones -- this relies on mac80211 doing
204 * list_add_tail().
631ee512 205 */
af3aab9c
JB		 206 mvm->gtk_ivlen = key->iv_len;
207 mvm->gtk_icvlen = key->icv_len;
208 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 1);
631ee512 209 }
af3aab9c
JB		 210 mutex_unlock(&mvm->mutex);
211 data->error = ret != 0;
631ee512
JB		 212}
213
214struct wowlan_key_rsc_tsc_data {
79e561f0 215 struct iwl_wowlan_rsc_tsc_params_cmd_v4 *rsc_tsc;
631ee512
JB		 216 bool have_rsc_tsc;
217};
218
219static void iwl_mvm_wowlan_get_rsc_tsc_data(struct ieee80211_hw *hw,
220 struct ieee80211_vif *vif,
221 struct ieee80211_sta *sta,
222 struct ieee80211_key_conf *key,
223 void *_data)
224{
225 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
226 struct wowlan_key_rsc_tsc_data *data = _data;
227 struct aes_sc *aes_sc;
228 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
229 struct ieee80211_key_seq seq;
230 int i;
231
232 switch (key->cipher) {
233 default:
234 break;
8ca151b5
JB		 235 case WLAN_CIPHER_SUITE_TKIP:
236 if (sta) {
1ad4f639
EP		 237 u64 pn64;
238
ee3ae3a1
DH		 239 tkip_sc =
240 data->rsc_tsc->params.all_tsc_rsc.tkip.unicast_rsc;
241 tkip_tx_sc =
242 &data->rsc_tsc->params.all_tsc_rsc.tkip.tsc;
8ca151b5 243
1ad4f639
EP		 244 pn64 = atomic64_read(&key->tx_pn);
245 tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64));
246 tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64));
8ca151b5
JB		 247 } else {
248 tkip_sc =
ee3ae3a1 249 data->rsc_tsc->params.all_tsc_rsc.tkip.multicast_rsc;
8ca151b5
JB		 250 }
251
252 /*
253 * For non-QoS this relies on the fact that both the uCode and
254 * mac80211 use TID 0 (as they need to to avoid replay attacks)
255 * for checking the IV in the frames.
256 */
257 for (i = 0; i < IWL_NUM_RSC; i++) {
258 ieee80211_get_key_rx_seq(key, i, &seq);
259 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
260 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
8ca151b5
JB		 261 }
262
631ee512 263 data->have_rsc_tsc = true;
8ca151b5
JB		 264 break;
265 case WLAN_CIPHER_SUITE_CCMP:
c7f996eb
JB		 266 case WLAN_CIPHER_SUITE_GCMP:
267 case WLAN_CIPHER_SUITE_GCMP_256:
8ca151b5 268 if (sta) {
631ee512 269 struct aes_sc *aes_tx_sc;
6645d5e4 270 u64 pn64;
8ca151b5 271
ee3ae3a1
DH		 272 aes_sc =
273 data->rsc_tsc->params.all_tsc_rsc.aes.unicast_rsc;
274 aes_tx_sc =
275 &data->rsc_tsc->params.all_tsc_rsc.aes.tsc;
8ca151b5 276
6645d5e4
JB		 277 pn64 = atomic64_read(&key->tx_pn);
278 aes_tx_sc->pn = cpu_to_le64(pn64);
8ca151b5 279 } else {
ee3ae3a1
DH		 280 aes_sc =
281 data->rsc_tsc->params.all_tsc_rsc.aes.multicast_rsc;
8ca151b5
JB		 282 }
283
284 /*
285 * For non-QoS this relies on the fact that both the uCode and
f5e28eac 286 * mac80211/our RX code use TID 0 for checking the PN.
8ca151b5 287 */
f5e28eac
JB		 288 if (sta && iwl_mvm_has_new_rx_api(mvm)) {
289 struct iwl_mvm_sta *mvmsta;
290 struct iwl_mvm_key_pn *ptk_pn;
291 const u8 *pn;
292
293 mvmsta = iwl_mvm_sta_from_mac80211(sta);
efa40c7e
SS		 294 rcu_read_lock();
295 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
296 if (WARN_ON(!ptk_pn)) {
297 rcu_read_unlock();
f5e28eac 298 break;
efa40c7e 299 }
f5e28eac
JB		 300
301 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
302 pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i,
303 mvm->trans->num_rx_queues);
304 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
305 ((u64)pn[4] << 8) |
306 ((u64)pn[3] << 16) |
307 ((u64)pn[2] << 24) |
308 ((u64)pn[1] << 32) |
309 ((u64)pn[0] << 40));
310 }
efa40c7e
SS		 311
312 rcu_read_unlock();
f5e28eac
JB		 313 } else {
314 for (i = 0; i < IWL_NUM_RSC; i++) {
315 u8 *pn = seq.ccmp.pn;
316
317 ieee80211_get_key_rx_seq(key, i, &seq);
318 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
319 ((u64)pn[4] << 8) |
320 ((u64)pn[3] << 16) |
321 ((u64)pn[2] << 24) |
322 ((u64)pn[1] << 32) |
323 ((u64)pn[0] << 40));
324 }
8ca151b5 325 }
631ee512 326 data->have_rsc_tsc = true;
8ca151b5
JB		 327 break;
328 }
631ee512 329}
8ca151b5 330
79e561f0
JB		 331struct wowlan_key_rsc_v5_data {
332 struct iwl_wowlan_rsc_tsc_params_cmd *rsc;
333 bool have_rsc;
334 int gtks;
335 int gtk_ids[4];
336};
337
338static void iwl_mvm_wowlan_get_rsc_v5_data(struct ieee80211_hw *hw,
339 struct ieee80211_vif *vif,
340 struct ieee80211_sta *sta,
341 struct ieee80211_key_conf *key,
342 void *_data)
343{
344 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
345 struct wowlan_key_rsc_v5_data *data = _data;
346 struct ieee80211_key_seq seq;
347 __le64 *rsc;
348 int i;
349
350 /* only for ciphers that can be PTK/GTK */
351 switch (key->cipher) {
352 default:
353 return;
354 case WLAN_CIPHER_SUITE_TKIP:
355 case WLAN_CIPHER_SUITE_CCMP:
356 case WLAN_CIPHER_SUITE_GCMP:
357 case WLAN_CIPHER_SUITE_GCMP_256:
358 break;
359 }
360
361 if (sta) {
362 rsc = data->rsc->ucast_rsc;
363 } else {
27a221f4 364 if (WARN_ON(data->gtks >= ARRAY_SIZE(data->gtk_ids)))
79e561f0
JB		 365 return;
366 data->gtk_ids[data->gtks] = key->keyidx;
367 rsc = data->rsc->mcast_rsc[data->gtks % 2];
27a221f4 368 if (WARN_ON(key->keyidx >=
79e561f0
JB		 369 ARRAY_SIZE(data->rsc->mcast_key_id_map)))
370 return;
371 data->rsc->mcast_key_id_map[key->keyidx] = data->gtks % 2;
372 if (data->gtks >= 2) {
373 int prev = data->gtks - 2;
374 int prev_idx = data->gtk_ids[prev];
375
376 data->rsc->mcast_key_id_map[prev_idx] =
377 IWL_MCAST_KEY_MAP_INVALID;
378 }
379 data->gtks++;
380 }
381
382 switch (key->cipher) {
383 default:
384 WARN_ON(1);
385 break;
386 case WLAN_CIPHER_SUITE_TKIP:
387
388 /*
389 * For non-QoS this relies on the fact that both the uCode and
390 * mac80211 use TID 0 (as they need to to avoid replay attacks)
391 * for checking the IV in the frames.
392 */
393 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
394 ieee80211_get_key_rx_seq(key, i, &seq);
395
396 rsc[i] = cpu_to_le64(((u64)seq.tkip.iv32 << 16) |
397 seq.tkip.iv16);
398 }
399
400 data->have_rsc = true;
401 break;
402 case WLAN_CIPHER_SUITE_CCMP:
403 case WLAN_CIPHER_SUITE_GCMP:
404 case WLAN_CIPHER_SUITE_GCMP_256:
405 /*
406 * For non-QoS this relies on the fact that both the uCode and
407 * mac80211/our RX code use TID 0 for checking the PN.
408 */
409 if (sta) {
410 struct iwl_mvm_sta *mvmsta;
411 struct iwl_mvm_key_pn *ptk_pn;
412 const u8 *pn;
413
414 mvmsta = iwl_mvm_sta_from_mac80211(sta);
415 rcu_read_lock();
416 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
417 if (WARN_ON(!ptk_pn)) {
418 rcu_read_unlock();
419 break;
420 }
421
422 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
423 pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i,
424 mvm->trans->num_rx_queues);
425 rsc[i] = cpu_to_le64((u64)pn[5] |
426 ((u64)pn[4] << 8) |
427 ((u64)pn[3] << 16) |
428 ((u64)pn[2] << 24) |
429 ((u64)pn[1] << 32) |
430 ((u64)pn[0] << 40));
431 }
432
433 rcu_read_unlock();
434 } else {
435 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
436 u8 *pn = seq.ccmp.pn;
437
438 ieee80211_get_key_rx_seq(key, i, &seq);
439 rsc[i] = cpu_to_le64((u64)pn[5] |
440 ((u64)pn[4] << 8) |
441 ((u64)pn[3] << 16) |
442 ((u64)pn[2] << 24) |
443 ((u64)pn[1] << 32) |
444 ((u64)pn[0] << 40));
445 }
446 }
447 data->have_rsc = true;
448 break;
449 }
450}
451
631ee512
JB		 452static int iwl_mvm_wowlan_config_rsc_tsc(struct iwl_mvm *mvm,
453 struct ieee80211_vif *vif)
454{
455 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
971cbe50 456 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TSC_RSC_PARAM,
631ee512 457 IWL_FW_CMD_VER_UNKNOWN);
631ee512 458 int ret;
19d9fa7a 459
79e561f0
JB		 460 if (ver == 5) {
461 struct wowlan_key_rsc_v5_data data = {};
462 int i;
463
464 data.rsc = kmalloc(sizeof(*data.rsc), GFP_KERNEL);
465 if (!data.rsc)
466 return -ENOMEM;
467
468 memset(data.rsc, 0xff, sizeof(*data.rsc));
469
470 for (i = 0; i < ARRAY_SIZE(data.rsc->mcast_key_id_map); i++)
471 data.rsc->mcast_key_id_map[i] =
472 IWL_MCAST_KEY_MAP_INVALID;
650cadb7 473 data.rsc->sta_id = cpu_to_le32(mvmvif->deflink.ap_sta_id);
79e561f0
JB		 474
475 ieee80211_iter_keys(mvm->hw, vif,
476 iwl_mvm_wowlan_get_rsc_v5_data,
477 &data);
478
479 if (data.have_rsc)
480 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM,
481 CMD_ASYNC, sizeof(*data.rsc),
482 data.rsc);
483 else
484 ret = 0;
485 kfree(data.rsc);
486 } else if (ver == 4 || ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN) {
487 struct wowlan_key_rsc_tsc_data data = {};
488 int size;
489
490 data.rsc_tsc = kzalloc(sizeof(*data.rsc_tsc), GFP_KERNEL);
491 if (!data.rsc_tsc)
492 return -ENOMEM;
493
494 if (ver == 4) {
495 size = sizeof(*data.rsc_tsc);
650cadb7
GG		 496 data.rsc_tsc->sta_id =
497 cpu_to_le32(mvmvif->deflink.ap_sta_id);
79e561f0
JB		 498 } else {
499 /* ver == 2 || ver == IWL_FW_CMD_VER_UNKNOWN */
500 size = sizeof(data.rsc_tsc->params);
501 }
631ee512 502
79e561f0
JB		 503 ieee80211_iter_keys(mvm->hw, vif,
504 iwl_mvm_wowlan_get_rsc_tsc_data,
505 &data);
506
507 if (data.have_rsc_tsc)
508 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_TSC_RSC_PARAM,
509 CMD_ASYNC, size,
510 data.rsc_tsc);
511 else
512 ret = 0;
513 kfree(data.rsc_tsc);
631ee512
JB		 514 } else {
515 ret = 0;
516 WARN_ON_ONCE(1);
8ca151b5 517 }
631ee512 518
631ee512 519 return ret;
8ca151b5
JB		 520}
521
0419e5e6
JB		 522struct wowlan_key_tkip_data {
523 struct iwl_wowlan_tkip_params_cmd tkip;
524 bool have_tkip_keys;
525};
526
527static void iwl_mvm_wowlan_get_tkip_data(struct ieee80211_hw *hw,
528 struct ieee80211_vif *vif,
529 struct ieee80211_sta *sta,
530 struct ieee80211_key_conf *key,
531 void *_data)
532{
533 struct wowlan_key_tkip_data *data = _data;
534 struct iwl_p1k_cache *rx_p1ks;
535 u8 *rx_mic_key;
536 struct ieee80211_key_seq seq;
537 u32 cur_rx_iv32 = 0;
538 u16 p1k[IWL_P1K_SIZE];
539 int i;
540
541 switch (key->cipher) {
542 default:
543 break;
544 case WLAN_CIPHER_SUITE_TKIP:
545 if (sta) {
546 u64 pn64;
547
548 rx_p1ks = data->tkip.rx_uni;
549
550 pn64 = atomic64_read(&key->tx_pn);
551
552 ieee80211_get_tkip_p1k_iv(key, TKIP_PN_TO_IV32(pn64),
553 p1k);
554 iwl_mvm_convert_p1k(p1k, data->tkip.tx.p1k);
555
556 memcpy(data->tkip.mic_keys.tx,
557 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
558 IWL_MIC_KEY_SIZE);
559
560 rx_mic_key = data->tkip.mic_keys.rx_unicast;
561 } else {
562 rx_p1ks = data->tkip.rx_multi;
563 rx_mic_key = data->tkip.mic_keys.rx_mcast;
564 }
565
566 for (i = 0; i < IWL_NUM_RSC; i++) {
11e94d2b 567 ieee80211_get_key_rx_seq(key, i, &seq);
0419e5e6
JB		 568 /* wrapping isn't allowed, AP must rekey */
569 if (seq.tkip.iv32 > cur_rx_iv32)
570 cur_rx_iv32 = seq.tkip.iv32;
571 }
572
573 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
574 cur_rx_iv32, p1k);
575 iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k);
576 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
577 cur_rx_iv32 + 1, p1k);
578 iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k);
579
580 memcpy(rx_mic_key,
581 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
582 IWL_MIC_KEY_SIZE);
583
584 data->have_tkip_keys = true;
585 break;
586 }
587}
588
be05fae2
JB		 589struct wowlan_key_gtk_type_iter {
590 struct iwl_wowlan_kek_kck_material_cmd_v4 *kek_kck_cmd;
591};
592
593static void iwl_mvm_wowlan_gtk_type_iter(struct ieee80211_hw *hw,
594 struct ieee80211_vif *vif,
595 struct ieee80211_sta *sta,
596 struct ieee80211_key_conf *key,
597 void *_data)
598{
599 struct wowlan_key_gtk_type_iter *data = _data;
600
601 switch (key->cipher) {
602 default:
603 return;
5933b862
NG		 604 case WLAN_CIPHER_SUITE_TKIP:
605 if (!sta)
606 data->kek_kck_cmd->gtk_cipher =
607 cpu_to_le32(STA_KEY_FLG_TKIP);
608 return;
be05fae2
JB		 609 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
610 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
611 data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_GCMP);
612 return;
613 case WLAN_CIPHER_SUITE_AES_CMAC:
614 data->kek_kck_cmd->igtk_cipher = cpu_to_le32(STA_KEY_FLG_CCM);
615 return;
616 case WLAN_CIPHER_SUITE_CCMP:
617 if (!sta)
618 data->kek_kck_cmd->gtk_cipher =
619 cpu_to_le32(STA_KEY_FLG_CCM);
5933b862 620 return;
be05fae2
JB		 621 case WLAN_CIPHER_SUITE_GCMP:
622 case WLAN_CIPHER_SUITE_GCMP_256:
623 if (!sta)
624 data->kek_kck_cmd->gtk_cipher =
625 cpu_to_le32(STA_KEY_FLG_GCMP);
5933b862 626 return;
be05fae2
JB		 627 }
628}
629
0c546fb6
LC		 630static int iwl_mvm_send_patterns_v1(struct iwl_mvm *mvm,
631 struct cfg80211_wowlan *wowlan)
8ca151b5 632{
0c546fb6 633 struct iwl_wowlan_patterns_cmd_v1 *pattern_cmd;
8ca151b5
JB		 634 struct iwl_host_cmd cmd = {
635 .id = WOWLAN_PATTERNS,
636 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
8ca151b5
JB		 637 };
638 int i, err;
639
640 if (!wowlan->n_patterns)
641 return 0;
642
e3448967 643 cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns);
8ca151b5
JB		 644
645 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
646 if (!pattern_cmd)
647 return -ENOMEM;
648
649 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
650
651 for (i = 0; i < wowlan->n_patterns; i++) {
652 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
653
654 memcpy(&pattern_cmd->patterns[i].mask,
655 wowlan->patterns[i].mask, mask_len);
656 memcpy(&pattern_cmd->patterns[i].pattern,
657 wowlan->patterns[i].pattern,
658 wowlan->patterns[i].pattern_len);
659 pattern_cmd->patterns[i].mask_size = mask_len;
660 pattern_cmd->patterns[i].pattern_size =
661 wowlan->patterns[i].pattern_len;
662 }
663
664 cmd.data[0] = pattern_cmd;
665 err = iwl_mvm_send_cmd(mvm, &cmd);
666 kfree(pattern_cmd);
667 return err;
668}
669
0c546fb6 670static int iwl_mvm_send_patterns(struct iwl_mvm *mvm,
0b35991a 671 struct ieee80211_vif *vif,
0c546fb6
LC		 672 struct cfg80211_wowlan *wowlan)
673{
0b35991a 674 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
0c546fb6
LC		 675 struct iwl_wowlan_patterns_cmd *pattern_cmd;
676 struct iwl_host_cmd cmd = {
677 .id = WOWLAN_PATTERNS,
678 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
679 };
680 int i, err;
971cbe50 681 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id,
0b35991a 682 IWL_FW_CMD_VER_UNKNOWN);
0c546fb6
LC		 683
684 if (!wowlan->n_patterns)
685 return 0;
686
687 cmd.len[0] = sizeof(*pattern_cmd) +
688 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern_v2);
689
0b35991a 690 pattern_cmd = kzalloc(cmd.len[0], GFP_KERNEL);
0c546fb6
LC		 691 if (!pattern_cmd)
692 return -ENOMEM;
693
0b35991a
EG		 694 pattern_cmd->n_patterns = wowlan->n_patterns;
695 if (ver >= 3)
650cadb7 696 pattern_cmd->sta_id = mvmvif->deflink.ap_sta_id;
0c546fb6
LC		 697
698 for (i = 0; i < wowlan->n_patterns; i++) {
699 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
700
701 pattern_cmd->patterns[i].pattern_type =
702 WOWLAN_PATTERN_TYPE_BITMASK;
703
704 memcpy(&pattern_cmd->patterns[i].u.bitmask.mask,
705 wowlan->patterns[i].mask, mask_len);
706 memcpy(&pattern_cmd->patterns[i].u.bitmask.pattern,
707 wowlan->patterns[i].pattern,
708 wowlan->patterns[i].pattern_len);
709 pattern_cmd->patterns[i].u.bitmask.mask_size = mask_len;
710 pattern_cmd->patterns[i].u.bitmask.pattern_size =
711 wowlan->patterns[i].pattern_len;
712 }
713
714 cmd.data[0] = pattern_cmd;
715 err = iwl_mvm_send_cmd(mvm, &cmd);
716 kfree(pattern_cmd);
717 return err;
718}
719
8ca151b5
JB		 720static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
721 struct ieee80211_sta *ap_sta)
722{
723 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
724 struct ieee80211_chanctx_conf *ctx;
725 u8 chains_static, chains_dynamic;
726 struct cfg80211_chan_def chandef;
727 int ret, i;
10a970df 728 struct iwl_binding_cmd_v1 binding_cmd = {};
8ca151b5 729 struct iwl_time_quota_cmd quota_cmd = {};
72cbb73e 730 struct iwl_time_quota_data *quota;
8ca151b5 731 u32 status;
10a970df
DH		 732
733 if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm)))
734 return -EINVAL;
8ca151b5
JB		 735
736 /* add back the PHY */
650cadb7 737 if (WARN_ON(!mvmvif->deflink.phy_ctxt))
8ca151b5
JB		 738 return -EINVAL;
739
740 rcu_read_lock();
d0a9123e 741 ctx = rcu_dereference(vif->bss_conf.chanctx_conf);
8ca151b5
JB		 742 if (WARN_ON(!ctx)) {
743 rcu_read_unlock();
744 return -EINVAL;
745 }
746 chandef = ctx->def;
747 chains_static = ctx->rx_chains_static;
748 chains_dynamic = ctx->rx_chains_dynamic;
749 rcu_read_unlock();
750
650cadb7 751 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->deflink.phy_ctxt, &chandef,
8ca151b5
JB		 752 chains_static, chains_dynamic);
753 if (ret)
754 return ret;
755
756 /* add back the MAC */
757 mvmvif->uploaded = false;
758
f276e20b 759 if (WARN_ON(!vif->cfg.assoc))
8ca151b5 760 return -EINVAL;
bca49d9a 761
8ca151b5 762 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
8ca151b5
JB		 763 if (ret)
764 return ret;
765
766 /* add back binding - XXX refactor? */
767 binding_cmd.id_and_color =
650cadb7
GG		 768 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id,
769 mvmvif->deflink.phy_ctxt->color));
8ca151b5
JB		 770 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
771 binding_cmd.phy =
650cadb7
GG		 772 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id,
773 mvmvif->deflink.phy_ctxt->color));
8ca151b5
JB		 774 binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
775 mvmvif->color));
776 for (i = 1; i < MAX_MACS_IN_BINDING; i++)
777 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
778
779 status = 0;
780 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
10a970df
DH		 781 IWL_BINDING_CMD_SIZE_V1, &binding_cmd,
782 &status);
8ca151b5
JB		 783 if (ret) {
784 IWL_ERR(mvm, "Failed to add binding: %d\n", ret);
785 return ret;
786 }
787
788 if (status) {
789 IWL_ERR(mvm, "Binding command failed: %u\n", status);
790 return -EIO;
791 }
792
24afba76 793 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0);
8ca151b5
JB		 794 if (ret)
795 return ret;
650cadb7
GG		 796 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->deflink.ap_sta_id],
797 ap_sta);
8ca151b5 798
3dfd3a97 799 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 800 if (ret)
801 return ret;
802
803 /* and some quota */
72cbb73e
DS		 804 quota = iwl_mvm_quota_cmd_get_quota(mvm, &quota_cmd, 0);
805 quota->id_and_color =
650cadb7
GG		 806 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->deflink.phy_ctxt->id,
807 mvmvif->deflink.phy_ctxt->color));
72cbb73e
DS		 808 quota->quota = cpu_to_le32(IWL_MVM_MAX_QUOTA);
809 quota->max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA);
8ca151b5 810
72cbb73e
DS		 811 for (i = 1; i < MAX_BINDINGS; i++) {
812 quota = iwl_mvm_quota_cmd_get_quota(mvm, &quota_cmd, i);
813 quota->id_and_color = cpu_to_le32(FW_CTXT_INVALID);
814 }
8ca151b5 815
a1022927 816 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0,
72cbb73e 817 iwl_mvm_quota_cmd_size(mvm), &quota_cmd);
8ca151b5
JB		 818 if (ret)
819 IWL_ERR(mvm, "Failed to send quota: %d\n", ret);
820
ea02a208 821 if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm, false))
47c8b154
JD		 822 IWL_ERR(mvm, "Failed to initialize D3 LAR information\n");
823
8ca151b5
JB		 824 return 0;
825}
826
4ac6cb59
JB		 827static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
828 struct ieee80211_vif *vif)
829{
6d9d32b8
JB		 830 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
831 struct iwl_nonqos_seq_query_cmd query_cmd = {
832 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET),
833 .mac_id_n_color =
834 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
835 mvmvif->color)),
836 };
4ac6cb59
JB		 837 struct iwl_host_cmd cmd = {
838 .id = NON_QOS_TX_COUNTER_CMD,
a1022927 839 .flags = CMD_WANT_SKB,
4ac6cb59
JB		 840 };
841 int err;
842 u32 size;
843
3afec639
EG		 844 cmd.data[0] = &query_cmd;
845 cmd.len[0] = sizeof(query_cmd);
6d9d32b8 846
4ac6cb59
JB		 847 err = iwl_mvm_send_cmd(mvm, &cmd);
848 if (err)
849 return err;
850
65b30348 851 size = iwl_rx_packet_payload_len(cmd.resp_pkt);
6d9d32b8 852 if (size < sizeof(__le16)) {
4ac6cb59 853 err = -EINVAL;
6d9d32b8
JB		 854 } else {
855 err = le16_to_cpup((__le16 *)cmd.resp_pkt->data);
3afec639
EG		 856 /* firmware returns next, not last-used seqno */
857 err = (u16) (err - 0x10);
6d9d32b8 858 }
4ac6cb59
JB		 859
860 iwl_free_resp(&cmd);
861 return err;
862}
863
6d9d32b8
JB		 864void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
865{
866 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
867 struct iwl_nonqos_seq_query_cmd query_cmd = {
868 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET),
869 .mac_id_n_color =
870 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
871 mvmvif->color)),
872 .value = cpu_to_le16(mvmvif->seqno),
873 };
874
875 /* return if called during restart, not resume from D3 */
876 if (!mvmvif->seqno_valid)
877 return;
878
879 mvmvif->seqno_valid = false;
880
a1022927 881 if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0,
6d9d32b8
JB		 882 sizeof(query_cmd), &query_cmd))
883 IWL_ERR(mvm, "failed to set non-QoS seqno\n");
884}
885
671b5820
LC		 886static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm)
887{
c7d42480 888 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
671b5820 889
fcb6b92a 890 iwl_mvm_stop_device(mvm);
671b5820
LC		 891 /*
892 * Set the HW restart bit -- this is mostly true as we're
893 * going to load new firmware and reprogram that, though
894 * the reprogramming is going to be manual to avoid adding
895 * all the MACs that aren't support.
896 * We don't have to clear up everything though because the
897 * reprogramming is manual. When we resume, we'll actually
898 * go through a proper restart sequence again to switch
899 * back to the runtime firmware image.
900 */
901 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
902
9c3deeb5
LC		 903 /* the fw is reset, so all the keys are cleared */
904 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
905
671b5820
LC		 906 mvm->ptk_ivlen = 0;
907 mvm->ptk_icvlen = 0;
908 mvm->ptk_ivlen = 0;
909 mvm->ptk_icvlen = 0;
910
911 return iwl_mvm_load_d3_fw(mvm);
912}
913
671b5820
LC		 914static int
915iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
916 struct cfg80211_wowlan *wowlan,
c8b06a99 917 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
671b5820
LC		 918 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
919 struct ieee80211_sta *ap_sta)
8ca151b5 920{
9d8ce6af 921 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
8ca151b5 922
c8b06a99 923 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
8ca151b5 924
c8b06a99 925 wowlan_config_cmd->is_11n_connection =
046d2e7c 926 ap_sta->deflink.ht_cap.ht_supported;
70b4c536 927 wowlan_config_cmd->flags = ENABLE_L3_FILTERING |
32795a88 928 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING;
8ca151b5 929
971cbe50 930 if (iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_CONFIGURATION, 0) < 6) {
5b16565a
NG		 931 /* Query the last used seqno and set it */
932 int ret = iwl_mvm_get_last_nonqos_seq(mvm, vif);
933
934 if (ret < 0)
935 return ret;
8ca151b5 936
5b16565a
NG		 937 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret);
938 }
671b5820 939
c8b06a99 940 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd);
8ca151b5
JB		 941
942 if (wowlan->disconnect)
c8b06a99 943 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 944 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
945 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
946 if (wowlan->magic_pkt)
c8b06a99 947 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 948 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
949 if (wowlan->gtk_rekey_failure)
c8b06a99 950 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 951 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
952 if (wowlan->eap_identity_req)
c8b06a99 953 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 954 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
955 if (wowlan->four_way_handshake)
c8b06a99 956 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 957 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
958 if (wowlan->n_patterns)
c8b06a99 959 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 960 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
961
962 if (wowlan->rfkill_release)
c8b06a99 963 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 964 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
965
f0c2646a
JB		 966 if (wowlan->tcp) {
967 /*
6039f3e1
JB		 968 * Set the "link change" (really "link lost") flag as well
969 * since that implies losing the TCP connection.
f0c2646a 970 */
c8b06a99 971 wowlan_config_cmd->wakeup_filter |=
f0c2646a
JB		 972 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS |
973 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE |
974 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET |
975 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
976 }
977
d3a6f7fb
EP		 978 if (wowlan->any) {
979 wowlan_config_cmd->wakeup_filter |=
980 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
981 IWL_WOWLAN_WAKEUP_LINK_CHANGE |
982 IWL_WOWLAN_WAKEUP_RX_FRAME |
983 IWL_WOWLAN_WAKEUP_BCN_FILTERING);
984 }
985
671b5820
LC		 986 return 0;
987}
f444eb10 988
0ea93388 989static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
398760aa 990 struct ieee80211_vif *vif)
671b5820 991{
8c7fd6a3
SS		 992 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
993 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
af3aab9c 994 struct wowlan_key_reprogram_data key_data = {};
ac8ef0ce
EP		 995 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
996 int ret;
9e3c3936
NE		 997 u8 cmd_ver;
998 size_t cmd_size;
ac8ef0ce 999
af3aab9c
JB		 1000 if (!unified) {
1001 /*
1002 * if we have to configure keys, call ieee80211_iter_keys(),
1003 * as we need non-atomic context in order to take the
1004 * required locks.
1005 */
1006 /*
1007 * Note that currently we don't use CMD_ASYNC in the iterator.
1008 * In case of key_data.configure_keys, all the configured
1009 * commands are SYNC, and iwl_mvm_wowlan_program_keys() will
1010 * take care of locking/unlocking mvm->mutex.
1011 */
1012 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_program_keys,
1013 &key_data);
ac8ef0ce 1014
af3aab9c
JB		 1015 if (key_data.error)
1016 return -EIO;
1017 }
ee3ae3a1 1018
631ee512
JB		 1019 ret = iwl_mvm_wowlan_config_rsc_tsc(mvm, vif);
1020 if (ret)
1021 return ret;
ac8ef0ce 1022
0419e5e6 1023 if (!fw_has_api(&mvm->fw->ucode_capa,
45c458b4 1024 IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) {
971cbe50 1025 int ver = iwl_fw_lookup_cmd_ver(mvm->fw, WOWLAN_TKIP_PARAM,
e80bfd11 1026 IWL_FW_CMD_VER_UNKNOWN);
0419e5e6 1027 struct wowlan_key_tkip_data tkip_data = {};
870bde78
DH		 1028 int size;
1029
1030 if (ver == 2) {
0419e5e6
JB		 1031 size = sizeof(tkip_data.tkip);
1032 tkip_data.tkip.sta_id =
650cadb7 1033 cpu_to_le32(mvmvif->deflink.ap_sta_id);
870bde78
DH		 1034 } else if (ver == 1 || ver == IWL_FW_CMD_VER_UNKNOWN) {
1035 size = sizeof(struct iwl_wowlan_tkip_params_cmd_ver_1);
1036 } else {
870bde78 1037 WARN_ON_ONCE(1);
631ee512 1038 return -EINVAL;
870bde78
DH		 1039 }
1040
0419e5e6
JB		 1041 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_get_tkip_data,
1042 &tkip_data);
1043
1044 if (tkip_data.have_tkip_keys) {
1045 /* send relevant data according to CMD version */
1046 ret = iwl_mvm_send_cmd_pdu(mvm,
1047 WOWLAN_TKIP_PARAM,
398760aa 1048 CMD_ASYNC, size,
0419e5e6
JB		 1049 &tkip_data.tkip);
1050 if (ret)
631ee512 1051 return ret;
0419e5e6 1052 }
ac8ef0ce
EP		 1053 }
1054
a3f7ba5c 1055 /* configure rekey data only if offloaded rekey is supported (d3) */
0ea93388 1056 if (mvmvif->rekey_data.valid) {
be05fae2
JB		 1057 struct iwl_wowlan_kek_kck_material_cmd_v4 kek_kck_cmd = {};
1058 struct iwl_wowlan_kek_kck_material_cmd_v4 *_kek_kck_cmd =
1059 &kek_kck_cmd;
1060 struct wowlan_key_gtk_type_iter gtk_type_data = {
1061 .kek_kck_cmd = _kek_kck_cmd,
1062 };
1063
e80bfd11 1064 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw,
e80bfd11
MG		 1065 WOWLAN_KEK_KCK_MATERIAL,
1066 IWL_FW_CMD_VER_UNKNOWN);
80e67119 1067 if (WARN_ON(cmd_ver != 2 && cmd_ver != 3 && cmd_ver != 4 &&
9e3c3936
NE		 1068 cmd_ver != IWL_FW_CMD_VER_UNKNOWN))
1069 return -EINVAL;
9e3c3936 1070
be05fae2
JB		 1071 ieee80211_iter_keys(mvm->hw, vif, iwl_mvm_wowlan_gtk_type_iter,
1072 &gtk_type_data);
1073
ac8ef0ce 1074 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
2a42aea7
NE		 1075 mvmvif->rekey_data.kck_len);
1076 kek_kck_cmd.kck_len = cpu_to_le16(mvmvif->rekey_data.kck_len);
ac8ef0ce 1077 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
2a42aea7
NE		 1078 mvmvif->rekey_data.kek_len);
1079 kek_kck_cmd.kek_len = cpu_to_le16(mvmvif->rekey_data.kek_len);
ac8ef0ce 1080 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
2a42aea7 1081 kek_kck_cmd.akm = cpu_to_le32(mvmvif->rekey_data.akm);
650cadb7 1082 kek_kck_cmd.sta_id = cpu_to_le32(mvmvif->deflink.ap_sta_id);
80e67119
EG		 1083
1084 if (cmd_ver == 4) {
1085 cmd_size = sizeof(struct iwl_wowlan_kek_kck_material_cmd_v4);
1086 } else {
1087 if (cmd_ver == 3)
1088 cmd_size =
1089 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v3);
1090 else
1091 cmd_size =
1092 sizeof(struct iwl_wowlan_kek_kck_material_cmd_v2);
1093 /* skip the sta_id at the beginning */
1094 _kek_kck_cmd = (void *)
3827cb59 1095 ((u8 *)_kek_kck_cmd + sizeof(kek_kck_cmd.sta_id));
80e67119 1096 }
ac8ef0ce 1097
19d9fa7a
SS		 1098 IWL_DEBUG_WOWLAN(mvm, "setting akm %d\n",
1099 mvmvif->rekey_data.akm);
1100
398760aa
JB		 1101 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_KEK_KCK_MATERIAL,
1102 CMD_ASYNC, cmd_size, _kek_kck_cmd);
ac8ef0ce 1103 if (ret)
631ee512 1104 return ret;
ac8ef0ce 1105 }
631ee512
JB		 1106
1107 return 0;
ac8ef0ce
EP		 1108}
1109
1110static int
1111iwl_mvm_wowlan_config(struct iwl_mvm *mvm,
1112 struct cfg80211_wowlan *wowlan,
1113 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
1114 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
1115 struct ieee80211_sta *ap_sta)
1116{
671b5820 1117 int ret;
23ae6128
MG		 1118 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1119 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
8ca151b5 1120
ba7136f3
AM		 1121 mvm->offload_tid = wowlan_config_cmd->offloading_tid;
1122
23ae6128
MG		 1123 if (!unified_image) {
1124 ret = iwl_mvm_switch_to_d3(mvm);
1125 if (ret)
1126 return ret;
3acc952b 1127
23ae6128
MG		 1128 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
1129 if (ret)
1130 return ret;
1131 }
671b5820 1132
398760aa 1133 ret = iwl_mvm_wowlan_config_key_params(mvm, vif);
f4bfdc5e
EG		 1134 if (ret)
1135 return ret;
8ca151b5 1136
c8b06a99
EG		 1137 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
1138 sizeof(*wowlan_config_cmd),
1139 wowlan_config_cmd);
8ca151b5 1140 if (ret)
ac8ef0ce 1141 return ret;
8ca151b5 1142
0c546fb6
LC		 1143 if (fw_has_api(&mvm->fw->ucode_capa,
1144 IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE))
0b35991a 1145 ret = iwl_mvm_send_patterns(mvm, vif, wowlan);
0c546fb6
LC		 1146 else
1147 ret = iwl_mvm_send_patterns_v1(mvm, wowlan);
8ca151b5 1148 if (ret)
ac8ef0ce 1149 return ret;
8ca151b5 1150
debdc23b 1151 return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0);
671b5820
LC		 1152}
1153
3acc952b
LC		 1154static int
1155iwl_mvm_netdetect_config(struct iwl_mvm *mvm,
1156 struct cfg80211_wowlan *wowlan,
1157 struct cfg80211_sched_scan_request *nd_config,
1158 struct ieee80211_vif *vif)
1159{
3acc952b 1160 int ret;
23ae6128
MG		 1161 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1162 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
3acc952b 1163
23ae6128
MG		 1164 if (!unified_image) {
1165 ret = iwl_mvm_switch_to_d3(mvm);
1166 if (ret)
1167 return ret;
5a143db8
LC		 1168 } else {
1169 /* In theory, we wouldn't have to stop a running sched
1170 * scan in order to start another one (for
1171 * net-detect). But in practice this doesn't seem to
1172 * work properly, so stop any running sched_scan now.
1173 */
1174 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
1175 if (ret)
1176 return ret;
23ae6128 1177 }
3acc952b 1178
19945dfb
LC		 1179 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies,
1180 IWL_MVM_SCAN_NETDETECT);
d9718da8
LC		 1181 if (ret)
1182 return ret;
3acc952b 1183
8ed4e659 1184 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels))
d9718da8
LC		 1185 return -EBUSY;
1186
8ed4e659 1187 /* save the sched scan matchsets... */
d9718da8
LC		 1188 if (nd_config->n_match_sets) {
1189 mvm->nd_match_sets = kmemdup(nd_config->match_sets,
1190 sizeof(*nd_config->match_sets) *
1191 nd_config->n_match_sets,
1192 GFP_KERNEL);
1193 if (mvm->nd_match_sets)
1194 mvm->n_nd_match_sets = nd_config->n_match_sets;
1195 }
1196
8ed4e659
LC		 1197 /* ...and the sched scan channels for later reporting */
1198 mvm->nd_channels = kmemdup(nd_config->channels,
1199 sizeof(*nd_config->channels) *
1200 nd_config->n_channels,
1201 GFP_KERNEL);
1202 if (mvm->nd_channels)
1203 mvm->n_nd_channels = nd_config->n_channels;
1204
d9718da8
LC		 1205 return 0;
1206}
1207
1208static void iwl_mvm_free_nd(struct iwl_mvm *mvm)
1209{
1210 kfree(mvm->nd_match_sets);
1211 mvm->nd_match_sets = NULL;
1212 mvm->n_nd_match_sets = 0;
8ed4e659
LC		 1213 kfree(mvm->nd_channels);
1214 mvm->nd_channels = NULL;
1215 mvm->n_nd_channels = 0;
3acc952b
LC		 1216}
1217
671b5820
LC		 1218static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
1219 struct cfg80211_wowlan *wowlan,
1220 bool test)
1221{
1222 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
671b5820
LC		 1223 struct ieee80211_vif *vif = NULL;
1224 struct iwl_mvm_vif *mvmvif = NULL;
1225 struct ieee80211_sta *ap_sta = NULL;
671b5820
LC		 1226 struct iwl_d3_manager_config d3_cfg_cmd_data = {
1227 /*
1228 * Program the minimum sleep time to 10 seconds, as many
1229 * platforms have issues processing a wakeup signal while
1230 * still being in the process of suspending.
1231 */
1232 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
1233 };
1234 struct iwl_host_cmd d3_cfg_cmd = {
1235 .id = D3_CONFIG_CMD,
708a39aa 1236 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
671b5820
LC		 1237 .data[0] = &d3_cfg_cmd_data,
1238 .len[0] = sizeof(d3_cfg_cmd_data),
1239 };
1240 int ret;
1241 int len __maybe_unused;
23ae6128
MG		 1242 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1243 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
671b5820
LC		 1244
1245 if (!wowlan) {
1246 /*
1247 * mac80211 shouldn't get here, but for D3 test
1248 * it doesn't warrant a warning
1249 */
1250 WARN_ON(!test);
1251 return -EINVAL;
1252 }
1253
1254 mutex_lock(&mvm->mutex);
1255
1019f9ef
JB		 1256 set_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
1257
00520b7a
EG		 1258 synchronize_net();
1259
7f549e2c
LC		 1260 vif = iwl_mvm_get_bss_vif(mvm);
1261 if (IS_ERR_OR_NULL(vif)) {
671b5820
LC		 1262 ret = 1;
1263 goto out_noreset;
1264 }
1265
671b5820
LC		 1266 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1267
650cadb7 1268 if (mvmvif->deflink.ap_sta_id == IWL_MVM_INVALID_STA) {
3acc952b 1269 /* if we're not associated, this must be netdetect */
566f165d 1270 if (!wowlan->nd_config) {
3acc952b
LC		 1271 ret = 1;
1272 goto out_noreset;
1273 }
1274
1275 ret = iwl_mvm_netdetect_config(
566f165d 1276 mvm, wowlan, wowlan->nd_config, vif);
3acc952b
LC		 1277 if (ret)
1278 goto out;
2021a89d
LC		 1279
1280 mvm->net_detect = true;
3acc952b 1281 } else {
78f65fbf
BB		 1282 struct iwl_wowlan_config_cmd wowlan_config_cmd = {
1283 .offloading_tid = 0,
1284 };
3acc952b 1285
650cadb7 1286 wowlan_config_cmd.sta_id = mvmvif->deflink.ap_sta_id;
f005fd88 1287
1e4d19ca 1288 ap_sta = rcu_dereference_protected(
650cadb7 1289 mvm->fw_id_to_mac_id[mvmvif->deflink.ap_sta_id],
1e4d19ca
LC		 1290 lockdep_is_held(&mvm->mutex));
1291 if (IS_ERR_OR_NULL(ap_sta)) {
1292 ret = -EINVAL;
1293 goto out_noreset;
1294 }
671b5820 1295
78f65fbf
BB		 1296 ret = iwl_mvm_sta_ensure_queue(
1297 mvm, ap_sta->txq[wowlan_config_cmd.offloading_tid]);
1298 if (ret)
1299 goto out_noreset;
1300
1e4d19ca
LC		 1301 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1302 vif, mvmvif, ap_sta);
1303 if (ret)
1304 goto out_noreset;
1e4d19ca
LC		 1305 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1306 vif, mvmvif, ap_sta);
1307 if (ret)
3c2f3b20 1308 goto out;
2021a89d
LC		 1309
1310 mvm->net_detect = false;
1e4d19ca 1311 }
f0c2646a 1312
c1cb92fc 1313 ret = iwl_mvm_power_update_device(mvm);
64b928c4
AB		 1314 if (ret)
1315 goto out;
1316
999609f1 1317 ret = iwl_mvm_power_update_mac(mvm);
ee1e8422
AB		 1318 if (ret)
1319 goto out;
1320
b0114714
JB		 1321#ifdef CONFIG_IWLWIFI_DEBUGFS
1322 if (mvm->d3_wake_sysassert)
1323 d3_cfg_cmd_data.wakeup_flags |=
1324 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR);
1325#endif
1326
e8a583f9 1327 /*
c040fe83
SM		 1328 * Prior to 9000 device family the driver needs to stop the dbg
1329 * recording before entering D3. In later devices the FW stops the
1330 * recording automatically.
e8a583f9 1331 */
286ca8eb 1332 if (mvm->trans->trans_cfg->device_family < IWL_DEVICE_FAMILY_9000)
57605833 1333 iwl_fw_dbg_stop_restart_recording(&mvm->fwrt, NULL, true);
e8a583f9 1334
708a39aa
HD		 1335 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
1336
8ca151b5 1337 /* must be last -- this switches firmware state */
debff618 1338 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
8ca151b5
JB		 1339 if (ret)
1340 goto out;
debff618 1341#ifdef CONFIG_IWLWIFI_DEBUGFS
65b30348
JB		 1342 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt);
1343 if (len >= sizeof(u32)) {
debff618
JB		 1344 mvm->d3_test_pme_ptr =
1345 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
debff618
JB		 1346 }
1347#endif
1348 iwl_free_resp(&d3_cfg_cmd);
8ca151b5
JB		 1349
1350 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1351
e5f3f215 1352 ret = iwl_trans_d3_suspend(mvm->trans, test, !unified_image);
8ca151b5 1353 out:
d9718da8 1354 if (ret < 0) {
d9718da8 1355 iwl_mvm_free_nd(mvm);
bac453ab
LC		 1356
1357 if (!unified_image) {
3b37f4c9
JB		 1358 if (mvm->fw_restart > 0) {
1359 mvm->fw_restart--;
bac453ab
LC		 1360 ieee80211_restart_hw(mvm->hw);
1361 }
1362 }
1019f9ef
JB		 1363
1364 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
d9718da8 1365 }
b70ab727 1366 out_noreset:
8ca151b5
JB		 1367 mutex_unlock(&mvm->mutex);
1368
1369 return ret;
1370}
1371
debff618
JB		 1372int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
1373{
d15a747f 1374 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
c43fe907 1375
7d9d0d56 1376 iwl_mvm_pause_tcm(mvm, true);
cf8c3cff 1377
7f8ae00f
HD		 1378 iwl_fw_runtime_suspend(&mvm->fwrt);
1379
debff618
JB		 1380 return __iwl_mvm_suspend(hw, wowlan, false);
1381}
1382
04f78e24
YB		 1383struct iwl_multicast_key_data {
1384 u8 key[WOWLAN_KEY_MAX_SIZE];
1385 u8 len;
1386 u8 flags;
1387 u8 id;
1388 u8 ipn[6];
1389};
1390
6d9d32b8
JB		 1391/* converted data from the different status responses */
1392struct iwl_wowlan_status_data {
4d4cbb9b
JB		 1393 u64 replay_ctr;
1394 u32 num_of_gtk_rekeys;
1395 u32 received_beacons;
6d9d32b8
JB		 1396 u32 wakeup_reasons;
1397 u32 wake_packet_length;
1398 u32 wake_packet_bufsize;
4d4cbb9b
JB		 1399 u16 pattern_number;
1400 u16 non_qos_seq_ctr;
1401 u16 qos_seq_ctr[8];
1402 u8 tid_tear_down;
1403
2dc97742
JB		 1404 struct {
1405 /* including RX MIC key for TKIP */
1406 u8 key[WOWLAN_KEY_MAX_SIZE];
1407 u8 len;
1408 u8 flags;
fa4e48fb
YB		 1409 u8 id;
1410 } gtk[WOWLAN_GTK_KEYS_NUM];
2dc97742 1411
4d4cbb9b
JB		 1412 struct {
1413 /*
1414 * We store both the TKIP and AES representations
1415 * coming from the firmware because we decode the
1416 * data from there before we iterate the keys and
1417 * know which one we need.
1418 */
1419 struct {
1420 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
1421 } tkip, aes;
2dc97742
JB		 1422
1423 /*
1424 * We use -1 for when we have valid data but don't know
1425 * the key ID from firmware, and thus it needs to be
1426 * installed with the last key (depending on rekeying).
1427 */
1428 s8 key_id;
1429 bool valid;
1430 } gtk_seq[2];
4d4cbb9b
JB		 1431
1432 struct {
1433 /* Same as above */
1434 struct {
1435 struct ieee80211_key_seq seq[IWL_MAX_TID_COUNT];
1436 u64 tx_pn;
1437 } tkip, aes;
1438 } ptk;
1439
04f78e24 1440 struct iwl_multicast_key_data igtk;
0c4aa7a1 1441 struct iwl_multicast_key_data bigtk[WOWLAN_BIGTK_KEYS_NUM];
4d4cbb9b 1442
219ed58f 1443 u8 *wake_packet;
6d9d32b8
JB		 1444};
1445
7abc4632
JB		 1446static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
1447 struct ieee80211_vif *vif,
6d9d32b8 1448 struct iwl_wowlan_status_data *status)
9b26b500 1449{
7abc4632 1450 struct sk_buff *pkt = NULL;
9b26b500
JB		 1451 struct cfg80211_wowlan_wakeup wakeup = {
1452 .pattern_idx = -1,
1453 };
1454 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
6d9d32b8 1455 u32 reasons = status->wakeup_reasons;
9b26b500
JB		 1456
1457 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1458 wakeup_report = NULL;
1459 goto report;
1460 }
1461
06ae2ad4
DB		 1462 pm_wakeup_event(mvm->dev, 0);
1463
f444eb10 1464 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
9b26b500 1465 wakeup.magic_pkt = true;
9b26b500 1466
f444eb10 1467 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
9b26b500 1468 wakeup.pattern_idx =
6d9d32b8 1469 status->pattern_number;
9b26b500
JB		 1470
1471 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1472 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH))
1473 wakeup.disconnect = true;
1474
f444eb10 1475 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
9b26b500 1476 wakeup.gtk_rekey_failure = true;
9b26b500 1477
f444eb10 1478 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
9b26b500 1479 wakeup.rfkill_release = true;
9b26b500 1480
f444eb10 1481 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
9b26b500 1482 wakeup.eap_identity_req = true;
9b26b500 1483
f444eb10 1484 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
9b26b500 1485 wakeup.four_way_handshake = true;
9b26b500 1486
f0c2646a
JB		 1487 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1488 wakeup.tcp_connlost = true;
1489
1490 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1491 wakeup.tcp_nomoretokens = true;
1492
1493 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1494 wakeup.tcp_match = true;
1495
219ed58f 1496 if (status->wake_packet) {
6d9d32b8
JB		 1497 int pktsize = status->wake_packet_bufsize;
1498 int pktlen = status->wake_packet_length;
f444eb10 1499 const u8 *pktdata = status->wake_packet;
86e8e657 1500 const struct ieee80211_hdr *hdr = (const void *)pktdata;
f444eb10
JB		 1501 int truncated = pktlen - pktsize;
1502
1503 /* this would be a firmware bug */
1504 if (WARN_ON_ONCE(truncated < 0))
1505 truncated = 0;
1506
1507 if (ieee80211_is_data(hdr->frame_control)) {
1508 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1509 int ivlen = 0, icvlen = 4; /* also FCS */
9b26b500 1510
9b26b500
JB		 1511 pkt = alloc_skb(pktsize, GFP_KERNEL);
1512 if (!pkt)
1513 goto report;
f444eb10 1514
59ae1d12 1515 skb_put_data(pkt, pktdata, hdrlen);
f444eb10
JB		 1516 pktdata += hdrlen;
1517 pktsize -= hdrlen;
1518
1519 if (ieee80211_has_protected(hdr->frame_control)) {
7abc4632
JB		 1520 /*
1521 * This is unlocked and using gtk_i(c)vlen,
1522 * but since everything is under RTNL still
1523 * that's not really a problem - changing
1524 * it would be difficult.
1525 */
f444eb10
JB		 1526 if (is_multicast_ether_addr(hdr->addr1)) {
1527 ivlen = mvm->gtk_ivlen;
1528 icvlen += mvm->gtk_icvlen;
1529 } else {
1530 ivlen = mvm->ptk_ivlen;
1531 icvlen += mvm->ptk_icvlen;
1532 }
1533 }
1534
1535 /* if truncated, FCS/ICV is (partially) gone */
1536 if (truncated >= icvlen) {
1537 icvlen = 0;
1538 truncated -= icvlen;
1539 } else {
1540 icvlen -= truncated;
1541 truncated = 0;
1542 }
1543
1544 pktsize -= ivlen + icvlen;
1545 pktdata += ivlen;
1546
59ae1d12 1547 skb_put_data(pkt, pktdata, pktsize);
f444eb10 1548
9b26b500
JB		 1549 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1550 goto report;
1551 wakeup.packet = pkt->data;
1552 wakeup.packet_present_len = pkt->len;
f444eb10 1553 wakeup.packet_len = pkt->len - truncated;
9b26b500
JB		 1554 wakeup.packet_80211 = false;
1555 } else {
f444eb10
JB		 1556 int fcslen = 4;
1557
1558 if (truncated >= 4) {
1559 truncated -= 4;
1560 fcslen = 0;
1561 } else {
1562 fcslen -= truncated;
1563 truncated = 0;
1564 }
1565 pktsize -= fcslen;
9b26b500
JB		 1566 wakeup.packet = status->wake_packet;
1567 wakeup.packet_present_len = pktsize;
f444eb10 1568 wakeup.packet_len = pktlen - truncated;
9b26b500
JB		 1569 wakeup.packet_80211 = true;
1570 }
1571 }
1572
1573 report:
1574 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1575 kfree_skb(pkt);
7abc4632 1576}
9b26b500 1577
2dc97742 1578static void iwl_mvm_le64_to_aes_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
6d9d32b8 1579{
2dc97742 1580 u64 pn = le64_to_cpu(le_pn);
6d9d32b8 1581
6d9d32b8
JB		 1582 seq->ccmp.pn[0] = pn >> 40;
1583 seq->ccmp.pn[1] = pn >> 32;
1584 seq->ccmp.pn[2] = pn >> 24;
1585 seq->ccmp.pn[3] = pn >> 16;
1586 seq->ccmp.pn[4] = pn >> 8;
1587 seq->ccmp.pn[5] = pn;
1588}
1589
2dc97742
JB		 1590static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
1591 struct ieee80211_key_seq *seq)
1592{
1593 iwl_mvm_le64_to_aes_seq(sc->pn, seq);
1594}
1595
1596static void iwl_mvm_le64_to_tkip_seq(__le64 le_pn, struct ieee80211_key_seq *seq)
1597{
1598 u64 pn = le64_to_cpu(le_pn);
1599
1600 seq->tkip.iv16 = (u16)pn;
1601 seq->tkip.iv32 = (u32)(pn >> 16);
1602}
1603
6d9d32b8
JB		 1604static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
1605 struct ieee80211_key_seq *seq)
1606{
1607 seq->tkip.iv32 = le32_to_cpu(sc->iv32);
1608 seq->tkip.iv16 = le16_to_cpu(sc->iv16);
1609}
1610
4d4cbb9b
JB		 1611static void iwl_mvm_set_key_rx_seq_tids(struct ieee80211_key_conf *key,
1612 struct ieee80211_key_seq *seq)
6d9d32b8
JB		 1613{
1614 int tid;
1615
4d4cbb9b
JB		 1616 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++)
1617 ieee80211_set_key_rx_seq(key, tid, &seq[tid]);
1618}
6d9d32b8 1619
4d4cbb9b
JB		 1620static void iwl_mvm_set_aes_ptk_rx_seq(struct iwl_mvm *mvm,
1621 struct iwl_wowlan_status_data *status,
1622 struct ieee80211_sta *sta,
1623 struct ieee80211_key_conf *key)
1624{
1625 struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta);
1626 struct iwl_mvm_key_pn *ptk_pn;
1627 int tid;
6d9d32b8 1628
4d4cbb9b 1629 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.aes.seq);
f5e28eac 1630
4d4cbb9b
JB		 1631 if (!iwl_mvm_has_new_rx_api(mvm))
1632 return;
f5e28eac 1633
f5e28eac 1634
4d4cbb9b
JB		 1635 rcu_read_lock();
1636 ptk_pn = rcu_dereference(mvmsta->ptk_pn[key->keyidx]);
1637 if (WARN_ON(!ptk_pn)) {
efa40c7e 1638 rcu_read_unlock();
4d4cbb9b
JB		 1639 return;
1640 }
f5e28eac 1641
4d4cbb9b
JB		 1642 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1643 int i;
1644
1645 for (i = 1; i < mvm->trans->num_rx_queues; i++)
1646 memcpy(ptk_pn->q[i].pn[tid],
1647 status->ptk.aes.seq[tid].ccmp.pn,
1648 IEEE80211_CCMP_PN_LEN);
6d9d32b8 1649 }
4d4cbb9b 1650 rcu_read_unlock();
6d9d32b8
JB		 1651}
1652
4d4cbb9b
JB		 1653static void iwl_mvm_convert_key_counters(struct iwl_wowlan_status_data *status,
1654 union iwl_all_tsc_rsc *sc)
6d9d32b8 1655{
4d4cbb9b 1656 int i;
6d9d32b8 1657
4d4cbb9b
JB		 1658 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
1659 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
6d9d32b8 1660
4d4cbb9b
JB		 1661 /* GTK RX counters */
1662 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1663 iwl_mvm_tkip_sc_to_seq(&sc->tkip.multicast_rsc[i],
2dc97742 1664 &status->gtk_seq[0].tkip.seq[i]);
4d4cbb9b 1665 iwl_mvm_aes_sc_to_seq(&sc->aes.multicast_rsc[i],
2dc97742 1666 &status->gtk_seq[0].aes.seq[i]);
4d4cbb9b 1667 }
2dc97742
JB		 1668 status->gtk_seq[0].valid = true;
1669 status->gtk_seq[0].key_id = -1;
6d9d32b8 1670
4d4cbb9b
JB		 1671 /* PTK TX counter */
1672 status->ptk.tkip.tx_pn = (u64)le16_to_cpu(sc->tkip.tsc.iv16) |
1673 ((u64)le32_to_cpu(sc->tkip.tsc.iv32) << 16);
1674 status->ptk.aes.tx_pn = le64_to_cpu(sc->aes.tsc.pn);
1675
1676 /* PTK RX counters */
1677 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1678 iwl_mvm_tkip_sc_to_seq(&sc->tkip.unicast_rsc[i],
1679 &status->ptk.tkip.seq[i]);
1680 iwl_mvm_aes_sc_to_seq(&sc->aes.unicast_rsc[i],
1681 &status->ptk.aes.seq[i]);
6d9d32b8
JB		 1682 }
1683}
1684
2dc97742
JB		 1685static void
1686iwl_mvm_convert_key_counters_v5_gtk_seq(struct iwl_wowlan_status_data *status,
1687 struct iwl_wowlan_all_rsc_tsc_v5 *sc,
1688 unsigned int idx, unsigned int key_id)
6d9d32b8 1689{
2dc97742
JB		 1690 int tid;
1691
1692 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1693 iwl_mvm_le64_to_tkip_seq(sc->mcast_rsc[idx][tid],
1694 &status->gtk_seq[idx].tkip.seq[tid]);
1695 iwl_mvm_le64_to_aes_seq(sc->mcast_rsc[idx][tid],
1696 &status->gtk_seq[idx].aes.seq[tid]);
1697 }
1698
1699 status->gtk_seq[idx].valid = true;
1700 status->gtk_seq[idx].key_id = key_id;
1701}
1702
1703static void
1704iwl_mvm_convert_key_counters_v5(struct iwl_wowlan_status_data *status,
1705 struct iwl_wowlan_all_rsc_tsc_v5 *sc)
1706{
1707 int i, tid;
1708
1709 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_MAX_TID_COUNT);
1710 BUILD_BUG_ON(IWL_MAX_TID_COUNT > IWL_NUM_RSC);
1711 BUILD_BUG_ON(ARRAY_SIZE(sc->mcast_rsc) != ARRAY_SIZE(status->gtk_seq));
1712
1713 /* GTK RX counters */
1714 for (i = 0; i < ARRAY_SIZE(sc->mcast_key_id_map); i++) {
1715 u8 entry = sc->mcast_key_id_map[i];
1716
1717 if (entry < ARRAY_SIZE(sc->mcast_rsc))
1718 iwl_mvm_convert_key_counters_v5_gtk_seq(status, sc,
1719 entry, i);
1720 }
87209b7f 1721
2dc97742
JB		 1722 /* PTK TX counters not needed, assigned in device */
1723
1724 /* PTK RX counters */
1725 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1726 iwl_mvm_le64_to_tkip_seq(sc->ucast_rsc[tid],
1727 &status->ptk.tkip.seq[tid]);
1728 iwl_mvm_le64_to_aes_seq(sc->ucast_rsc[tid],
1729 &status->ptk.aes.seq[tid]);
1730 }
1731}
1732
1733static void iwl_mvm_set_key_rx_seq_idx(struct ieee80211_key_conf *key,
1734 struct iwl_wowlan_status_data *status,
1735 int idx)
1736{
6d9d32b8
JB		 1737 switch (key->cipher) {
1738 case WLAN_CIPHER_SUITE_CCMP:
c7f996eb
JB		 1739 case WLAN_CIPHER_SUITE_GCMP:
1740 case WLAN_CIPHER_SUITE_GCMP_256:
2dc97742 1741 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].aes.seq);
6d9d32b8
JB		 1742 break;
1743 case WLAN_CIPHER_SUITE_TKIP:
2dc97742 1744 iwl_mvm_set_key_rx_seq_tids(key, status->gtk_seq[idx].tkip.seq);
6d9d32b8
JB		 1745 break;
1746 default:
1747 WARN_ON(1);
1748 }
1749}
1750
2dc97742
JB		 1751static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf *key,
1752 struct iwl_wowlan_status_data *status,
1753 bool installed)
1754{
1755 int i;
1756
1757 for (i = 0; i < ARRAY_SIZE(status->gtk_seq); i++) {
1758 if (!status->gtk_seq[i].valid)
1759 continue;
1760
1761 /* Handle the case where we know the key ID */
1762 if (status->gtk_seq[i].key_id == key->keyidx) {
1763 s8 new_key_id = -1;
1764
1765 if (status->num_of_gtk_rekeys)
fa4e48fb 1766 new_key_id = status->gtk[0].flags &
2dc97742
JB		 1767 IWL_WOWLAN_GTK_IDX_MASK;
1768
1769 /* Don't install a new key's value to an old key */
1770 if (new_key_id != key->keyidx)
1771 iwl_mvm_set_key_rx_seq_idx(key, status, i);
1772 continue;
1773 }
1774
1775 /* handle the case where we didn't, last key only */
1776 if (status->gtk_seq[i].key_id == -1 &&
1777 (!status->num_of_gtk_rekeys || installed))
1778 iwl_mvm_set_key_rx_seq_idx(key, status, i);
1779 }
1780}
1781
6d9d32b8 1782struct iwl_mvm_d3_gtk_iter_data {
f5e28eac 1783 struct iwl_mvm *mvm;
4d4cbb9b 1784 struct iwl_wowlan_status_data *status;
0c4aa7a1
YB		 1785 u32 gtk_cipher, igtk_cipher, bigtk_cipher;
1786 bool unhandled_cipher, igtk_support, bigtk_support;
6d9d32b8
JB		 1787 int num_keys;
1788};
1789
60555ea4
YB		 1790static void iwl_mvm_d3_find_last_keys(struct ieee80211_hw *hw,
1791 struct ieee80211_vif *vif,
1792 struct ieee80211_sta *sta,
1793 struct ieee80211_key_conf *key,
1794 void *_data)
6d9d32b8
JB		 1795{
1796 struct iwl_mvm_d3_gtk_iter_data *data = _data;
1797
1798 if (data->unhandled_cipher)
1799 return;
1800
1801 switch (key->cipher) {
1802 case WLAN_CIPHER_SUITE_WEP40:
1803 case WLAN_CIPHER_SUITE_WEP104:
1804 /* ignore WEP completely, nothing to do */
1805 return;
1806 case WLAN_CIPHER_SUITE_CCMP:
c7f996eb
JB		 1807 case WLAN_CIPHER_SUITE_GCMP:
1808 case WLAN_CIPHER_SUITE_GCMP_256:
6d9d32b8
JB		 1809 case WLAN_CIPHER_SUITE_TKIP:
1810 /* we support these */
fa4e48fb 1811 data->gtk_cipher = key->cipher;
6d9d32b8 1812 break;
04f78e24
YB		 1813 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
1814 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
1815 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
1816 case WLAN_CIPHER_SUITE_AES_CMAC:
1817 /* we support these */
1818 if (data->igtk_support &&
1819 (key->keyidx == 4 || key->keyidx == 5)) {
1820 data->igtk_cipher = key->cipher;
0c4aa7a1
YB		 1821 } else if (data->bigtk_support &&
1822 (key->keyidx == 6 || key->keyidx == 7)) {
1823 data->bigtk_cipher = key->cipher;
04f78e24
YB		 1824 } else {
1825 data->unhandled_cipher = true;
1826 return;
1827 }
1828 break;
6d9d32b8 1829 default:
60555ea4 1830 /* everything else - disconnect from AP */
6d9d32b8
JB		 1831 data->unhandled_cipher = true;
1832 return;
1833 }
1834
1835 data->num_keys++;
60555ea4 1836}
6d9d32b8 1837
04f78e24
YB		 1838static void
1839iwl_mvm_d3_set_igtk_bigtk_ipn(const struct iwl_multicast_key_data *key,
1840 struct ieee80211_key_seq *seq, u32 cipher)
1841{
1842 switch (cipher) {
1843 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
1844 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
1845 BUILD_BUG_ON(sizeof(seq->aes_gmac.pn) != sizeof(key->ipn));
1846 memcpy(seq->aes_gmac.pn, key->ipn, sizeof(seq->aes_gmac.pn));
1847 break;
1848 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
1849 BUILD_BUG_ON(sizeof(seq->aes_cmac.pn) != sizeof(key->ipn));
1850 memcpy(seq->aes_cmac.pn, key->ipn, sizeof(seq->aes_cmac.pn));
1851 break;
1852 }
1853}
1854
0c4aa7a1
YB		 1855static void
1856iwl_mvm_d3_update_igtk_bigtk(struct iwl_wowlan_status_data *status,
1857 struct ieee80211_key_conf *key,
1858 struct iwl_multicast_key_data *key_data)
1859{
1860 if (status->num_of_gtk_rekeys && key_data->len) {
1861 /* remove rekeyed key */
1862 ieee80211_remove_key(key);
1863 } else {
1864 struct ieee80211_key_seq seq;
1865
1866 iwl_mvm_d3_set_igtk_bigtk_ipn(key_data,
1867 &seq,
1868 key->cipher);
1869 ieee80211_set_key_rx_seq(key, 0, &seq);
1870 }
1871}
1872
60555ea4
YB		 1873static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
1874 struct ieee80211_vif *vif,
1875 struct ieee80211_sta *sta,
1876 struct ieee80211_key_conf *key,
1877 void *_data)
1878{
1879 struct iwl_mvm_d3_gtk_iter_data *data = _data;
1880 struct iwl_wowlan_status_data *status = data->status;
fa4e48fb 1881 s8 keyidx;
60555ea4
YB		 1882
1883 if (data->unhandled_cipher)
1884 return;
6d9d32b8 1885
60555ea4
YB		 1886 switch (key->cipher) {
1887 case WLAN_CIPHER_SUITE_WEP40:
1888 case WLAN_CIPHER_SUITE_WEP104:
1889 /* ignore WEP completely, nothing to do */
1890 return;
1891 case WLAN_CIPHER_SUITE_CCMP:
1892 case WLAN_CIPHER_SUITE_GCMP:
1893 case WLAN_CIPHER_SUITE_GCMP_256:
1894 if (sta) {
4d4cbb9b
JB		 1895 atomic64_set(&key->tx_pn, status->ptk.aes.tx_pn);
1896 iwl_mvm_set_aes_ptk_rx_seq(data->mvm, status, sta, key);
60555ea4
YB		 1897 return;
1898 }
1899 fallthrough;
1900 case WLAN_CIPHER_SUITE_TKIP:
1901 if (sta) {
4d4cbb9b
JB		 1902 atomic64_set(&key->tx_pn, status->ptk.tkip.tx_pn);
1903 iwl_mvm_set_key_rx_seq_tids(key, status->ptk.tkip.seq);
60555ea4 1904 return;
6d9d32b8 1905 }
fa4e48fb
YB		 1906 keyidx = key->keyidx;
1907 /* The current key is always sent by the FW, even if it wasn't
1908 * rekeyed during D3.
1909 * We remove an existing key if it has the same index as
1910 * a new key
1911 */
1912 if (status->num_of_gtk_rekeys &&
1913 ((status->gtk[0].len && keyidx == status->gtk[0].id) ||
1914 (status->gtk[1].len && keyidx == status->gtk[1].id))) {
60555ea4 1915 ieee80211_remove_key(key);
fa4e48fb 1916 } else {
60555ea4 1917 iwl_mvm_set_key_rx_seq(key, data->status, false);
fa4e48fb 1918 }
04f78e24
YB		 1919 break;
1920 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
1921 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
1922 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
1923 case WLAN_CIPHER_SUITE_AES_CMAC:
1924 if (key->keyidx == 4 || key->keyidx == 5) {
0c4aa7a1
YB		 1925 iwl_mvm_d3_update_igtk_bigtk(status, key,
1926 &status->igtk);
1927 }
1928 if (key->keyidx == 6 || key->keyidx == 7) {
1929 u8 idx = key->keyidx == status->bigtk[1].id;
04f78e24 1930
0c4aa7a1
YB		 1931 iwl_mvm_d3_update_igtk_bigtk(status, key,
1932 &status->bigtk[idx]);
04f78e24 1933 }
6d9d32b8 1934 }
6d9d32b8
JB		 1935}
1936
fa4e48fb
YB		 1937static bool iwl_mvm_gtk_rekey(struct iwl_wowlan_status_data *status,
1938 struct ieee80211_vif *vif,
1939 struct iwl_mvm *mvm, u32 gtk_cipher)
1940{
1941 int i;
1942 struct ieee80211_key_conf *key;
1943 struct {
1944 struct ieee80211_key_conf conf;
1945 u8 key[32];
1946 } conf = {
1947 .conf.cipher = gtk_cipher,
1948 };
1949
1950 BUILD_BUG_ON(WLAN_KEY_LEN_CCMP != WLAN_KEY_LEN_GCMP);
1951 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_CCMP);
1952 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_GCMP_256);
1953 BUILD_BUG_ON(sizeof(conf.key) < WLAN_KEY_LEN_TKIP);
1954 BUILD_BUG_ON(sizeof(conf.key) < sizeof(status->gtk[0].key));
1955
1956 switch (gtk_cipher) {
1957 case WLAN_CIPHER_SUITE_CCMP:
1958 case WLAN_CIPHER_SUITE_GCMP:
1959 conf.conf.keylen = WLAN_KEY_LEN_CCMP;
1960 break;
1961 case WLAN_CIPHER_SUITE_GCMP_256:
1962 conf.conf.keylen = WLAN_KEY_LEN_GCMP_256;
1963 break;
1964 case WLAN_CIPHER_SUITE_TKIP:
1965 conf.conf.keylen = WLAN_KEY_LEN_TKIP;
1966 break;
1967 default:
1968 WARN_ON(1);
1969 }
1970
1971 for (i = 0; i < ARRAY_SIZE(status->gtk); i++) {
1972 if (!status->gtk[i].len)
1973 continue;
1974
1975 conf.conf.keyidx = status->gtk[i].id;
1976 IWL_DEBUG_WOWLAN(mvm,
1977 "Received from FW GTK cipher %d, key index %d\n",
1978 conf.conf.cipher, conf.conf.keyidx);
1979 memcpy(conf.conf.key, status->gtk[i].key,
1980 sizeof(status->gtk[i].key));
1981
1982 key = ieee80211_gtk_rekey_add(vif, &conf.conf);
1983 if (IS_ERR(key))
1984 return false;
1985 iwl_mvm_set_key_rx_seq_idx(key, status, i);
1986 }
1987
1988 return true;
1989}
1990
04f78e24
YB		 1991static bool
1992iwl_mvm_d3_igtk_bigtk_rekey_add(struct iwl_wowlan_status_data *status,
1993 struct ieee80211_vif *vif, u32 cipher,
1994 struct iwl_multicast_key_data *key_data)
1995{
1996 struct ieee80211_key_conf *key_config;
1997 struct {
1998 struct ieee80211_key_conf conf;
1999 u8 key[WOWLAN_KEY_MAX_SIZE];
2000 } conf = {
2001 .conf.cipher = cipher,
2002 .conf.keyidx = key_data->id,
2003 };
2004 struct ieee80211_key_seq seq;
2005
2006 if (!key_data->len)
2007 return true;
2008
2009 iwl_mvm_d3_set_igtk_bigtk_ipn(key_data, &seq, conf.conf.cipher);
2010
2011 switch (cipher) {
2012 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
2013 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_128;
2014 break;
2015 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2016 conf.conf.keylen = WLAN_KEY_LEN_BIP_GMAC_256;
2017 break;
2018 case WLAN_CIPHER_SUITE_AES_CMAC:
2019 conf.conf.keylen = WLAN_KEY_LEN_AES_CMAC;
2020 break;
2021 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
2022 conf.conf.keylen = WLAN_KEY_LEN_BIP_CMAC_256;
2023 break;
2024 default:
2025 WARN_ON(1);
2026 }
2027 BUILD_BUG_ON(sizeof(conf.key) < sizeof(key_data->key));
2028 memcpy(conf.conf.key, key_data->key, conf.conf.keylen);
2029
2030 key_config = ieee80211_gtk_rekey_add(vif, &conf.conf);
2031 if (IS_ERR(key_config))
2032 return false;
2033 ieee80211_set_key_rx_seq(key_config, 0, &seq);
ac0c6fdc
YB		 2034
2035 if (key_config->keyidx == 4 || key_config->keyidx == 5) {
2036 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2037 int link_id = vif->active_links ? __ffs(vif->active_links) : 0;
2038 struct iwl_mvm_vif_link_info *mvm_link =
2039 mvmvif->link[link_id];
2040
2041 mvm_link->igtk = key_config;
2042 }
2043
04f78e24
YB		 2044 return true;
2045}
2046
2047static int iwl_mvm_lookup_wowlan_status_ver(struct iwl_mvm *mvm)
2048{
2049 u8 notif_ver;
2050
2051 if (!fw_has_api(&mvm->fw->ucode_capa,
2052 IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL))
2053 return 6;
2054
2055 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */
2056 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
2057 WOWLAN_GET_STATUSES, 0);
2058 if (!notif_ver)
2059 notif_ver = iwl_fw_lookup_notif_ver(mvm->fw, LEGACY_GROUP,
2060 WOWLAN_GET_STATUSES, 7);
2061
2062 return notif_ver;
2063}
2064
6d9d32b8
JB		 2065static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
2066 struct ieee80211_vif *vif,
4d4cbb9b 2067 struct iwl_wowlan_status_data *status)
6d9d32b8
JB		 2068{
2069 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
2070 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
f5e28eac 2071 .mvm = mvm,
6d9d32b8
JB		 2072 .status = status,
2073 };
0c4aa7a1
YB		 2074 int i;
2075
431591cc
EP		 2076 u32 disconnection_reasons =
2077 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
2078 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
6d9d32b8
JB		 2079
2080 if (!status || !vif->bss_conf.bssid)
2081 return false;
2082
4d4cbb9b 2083 if (status->wakeup_reasons & disconnection_reasons)
431591cc
EP		 2084 return false;
2085
04f78e24
YB		 2086 if (iwl_mvm_lookup_wowlan_status_ver(mvm) > 6 ||
2087 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
2088 WOWLAN_INFO_NOTIFICATION,
2089 0))
2090 gtkdata.igtk_support = true;
2091
0c4aa7a1
YB		 2092 if (iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
2093 WOWLAN_INFO_NOTIFICATION,
2094 0) >= 3)
2095 gtkdata.bigtk_support = true;
2096
6d9d32b8 2097 /* find last GTK that we used initially, if any */
6d9d32b8 2098 ieee80211_iter_keys(mvm->hw, vif,
60555ea4 2099 iwl_mvm_d3_find_last_keys, &gtkdata);
6d9d32b8
JB		 2100 /* not trying to keep connections with MFP/unhandled ciphers */
2101 if (gtkdata.unhandled_cipher)
2102 return false;
2103 if (!gtkdata.num_keys)
cfa88893 2104 goto out;
6d9d32b8
JB		 2105
2106 /*
2107 * invalidate all other GTKs that might still exist and update
2108 * the one that we used
2109 */
6d9d32b8 2110 ieee80211_iter_keys(mvm->hw, vif,
59fd4bf6 2111 iwl_mvm_d3_update_keys, &gtkdata);
6d9d32b8
JB		 2112
2113 if (status->num_of_gtk_rekeys) {
fa4e48fb 2114 __be64 replay_ctr = cpu_to_be64(status->replay_ctr);
4d4cbb9b 2115
fa4e48fb
YB		 2116 IWL_DEBUG_WOWLAN(mvm, "num of GTK rekeying %d\n",
2117 status->num_of_gtk_rekeys);
4d4cbb9b 2118
fa4e48fb 2119 if (!iwl_mvm_gtk_rekey(status, vif, mvm, gtkdata.gtk_cipher))
6d9d32b8 2120 return false;
04f78e24
YB		 2121
2122 if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif,
2123 gtkdata.igtk_cipher,
2124 &status->igtk))
2125 return false;
2126
0c4aa7a1
YB		 2127 for (i = 0; i < ARRAY_SIZE(status->bigtk); i++) {
2128 if (!iwl_mvm_d3_igtk_bigtk_rekey_add(status, vif,
2129 gtkdata.bigtk_cipher,
2130 &status->bigtk[i]))
2131 return false;
2132 }
2133
6d9d32b8
JB		 2134 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid,
2135 (void *)&replay_ctr, GFP_KERNEL);
2136 }
2137
cfa88893 2138out:
5b16565a
NG		 2139 if (iwl_fw_lookup_notif_ver(mvm->fw, LONG_GROUP,
2140 WOWLAN_GET_STATUSES, 0) < 10) {
2141 mvmvif->seqno_valid = true;
2142 /* +0x10 because the set API expects next-to-use, not last-used */
4d4cbb9b 2143 mvmvif->seqno = status->non_qos_seq_ctr + 0x10;
5b16565a 2144 }
6d9d32b8
JB		 2145
2146 return true;
2147}
2148
32fed470
NG		 2149static void iwl_mvm_convert_gtk_v2(struct iwl_wowlan_status_data *status,
2150 struct iwl_wowlan_gtk_status_v2 *data)
2151{
fa4e48fb 2152 BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data->key));
32fed470
NG		 2153 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2154 sizeof(data->tkip_mic_key) >
fa4e48fb 2155 sizeof(status->gtk[0].key));
32fed470 2156
fa4e48fb
YB		 2157 status->gtk[0].len = data->key_len;
2158 status->gtk[0].flags = data->key_flags;
32fed470 2159
fa4e48fb 2160 memcpy(status->gtk[0].key, data->key, sizeof(data->key));
32fed470
NG		 2161
2162 /* if it's as long as the TKIP encryption key, copy MIC key */
fa4e48fb
YB		 2163 if (status->gtk[0].len == NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY)
2164 memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
32fed470
NG		 2165 data->tkip_mic_key, sizeof(data->tkip_mic_key));
2166}
2167
2168static void iwl_mvm_convert_gtk_v3(struct iwl_wowlan_status_data *status,
2169 struct iwl_wowlan_gtk_status_v3 *data)
2170{
fa4e48fb
YB		 2171 int data_idx, status_idx = 0;
2172
2173 BUILD_BUG_ON(sizeof(status->gtk[0].key) < sizeof(data[0].key));
2174 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2175 sizeof(data[0].tkip_mic_key) >
2176 sizeof(status->gtk[0].key));
2177 BUILD_BUG_ON(ARRAY_SIZE(status->gtk) < WOWLAN_GTK_KEYS_NUM);
2178 for (data_idx = 0; data_idx < ARRAY_SIZE(status->gtk); data_idx++) {
2179 if (!(data[data_idx].key_len))
2180 continue;
2181 status->gtk[status_idx].len = data[data_idx].key_len;
2182 status->gtk[status_idx].flags = data[data_idx].key_flags;
2183 status->gtk[status_idx].id = status->gtk[status_idx].flags &
2184 IWL_WOWLAN_GTK_IDX_MASK;
2185
2186 memcpy(status->gtk[status_idx].key, data[data_idx].key,
2187 sizeof(data[data_idx].key));
2188
2189 /* if it's as long as the TKIP encryption key, copy MIC key */
2190 if (status->gtk[status_idx].len ==
2191 NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY)
2192 memcpy(status->gtk[status_idx].key +
2193 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2194 data[data_idx].tkip_mic_key,
2195 sizeof(data[data_idx].tkip_mic_key));
2196 status_idx++;
2197 }
32fed470
NG		 2198}
2199
2200static void iwl_mvm_convert_igtk(struct iwl_wowlan_status_data *status,
2201 struct iwl_wowlan_igtk_status *data)
2202{
32fed470
NG		 2203 BUILD_BUG_ON(sizeof(status->igtk.key) < sizeof(data->key));
2204
04f78e24
YB		 2205 if (!data->key_len)
2206 return;
2207
32fed470
NG		 2208 status->igtk.len = data->key_len;
2209 status->igtk.flags = data->key_flags;
04f78e24
YB		 2210 status->igtk.id = u32_get_bits(data->key_flags,
2211 IWL_WOWLAN_IGTK_BIGTK_IDX_MASK)
2212 + WOWLAN_IGTK_MIN_INDEX;
32fed470
NG		 2213
2214 memcpy(status->igtk.key, data->key, sizeof(data->key));
04f78e24 2215 memcpy(status->igtk.ipn, data->ipn, sizeof(data->ipn));
32fed470
NG		 2216}
2217
0c4aa7a1
YB		 2218static void iwl_mvm_convert_bigtk(struct iwl_wowlan_status_data *status,
2219 const struct iwl_wowlan_igtk_status *data)
2220{
2221 int data_idx, status_idx = 0;
2222
2223 BUILD_BUG_ON(ARRAY_SIZE(status->bigtk) < WOWLAN_BIGTK_KEYS_NUM);
2224
2225 for (data_idx = 0; data_idx < WOWLAN_BIGTK_KEYS_NUM; data_idx++) {
2226 if (!data[data_idx].key_len)
2227 continue;
2228
2229 status->bigtk[status_idx].len = data[data_idx].key_len;
2230 status->bigtk[status_idx].flags = data[data_idx].key_flags;
2231 status->bigtk[status_idx].id =
2232 u32_get_bits(data[data_idx].key_flags,
2233 IWL_WOWLAN_IGTK_BIGTK_IDX_MASK)
2234 + WOWLAN_BIGTK_MIN_INDEX;
2235
2236 BUILD_BUG_ON(sizeof(status->bigtk[status_idx].key) <
2237 sizeof(data[data_idx].key));
2238 BUILD_BUG_ON(sizeof(status->bigtk[status_idx].ipn) <
2239 sizeof(data[data_idx].ipn));
2240
2241 memcpy(status->bigtk[status_idx].key, data[data_idx].key,
2242 sizeof(data[data_idx].key));
2243 memcpy(status->bigtk[status_idx].ipn, data[data_idx].ipn,
2244 sizeof(data[data_idx].ipn));
2245 status_idx++;
2246 }
2247}
2248
32fed470
NG		 2249static void iwl_mvm_parse_wowlan_info_notif(struct iwl_mvm *mvm,
2250 struct iwl_wowlan_info_notif *data,
2251 struct iwl_wowlan_status_data *status,
2252 u32 len)
2253{
2254 u32 i;
2255
905d50dd
HD		 2256 if (!data) {
2257 IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n");
2258 status = NULL;
2259 return;
2260 }
2261
32fed470
NG		 2262 if (len < sizeof(*data)) {
2263 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n");
2264 status = NULL;
2265 return;
2266 }
2267
2268 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc);
fa4e48fb 2269 iwl_mvm_convert_gtk_v3(status, data->gtk);
32fed470 2270 iwl_mvm_convert_igtk(status, &data->igtk[0]);
0c4aa7a1
YB		 2271 iwl_mvm_convert_bigtk(status, data->bigtk);
2272 status->replay_ctr = le64_to_cpu(data->replay_ctr);
2273 status->pattern_number = le16_to_cpu(data->pattern_number);
2274 for (i = 0; i < IWL_MAX_TID_COUNT; i++)
2275 status->qos_seq_ctr[i] =
2276 le16_to_cpu(data->qos_seq_ctr[i]);
2277 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons);
2278 status->num_of_gtk_rekeys =
2279 le32_to_cpu(data->num_of_gtk_rekeys);
2280 status->received_beacons = le32_to_cpu(data->received_beacons);
2281 status->tid_tear_down = data->tid_tear_down;
2282}
2283
2284static void
2285iwl_mvm_parse_wowlan_info_notif_v2(struct iwl_mvm *mvm,
2286 struct iwl_wowlan_info_notif_v2 *data,
2287 struct iwl_wowlan_status_data *status,
2288 u32 len)
2289{
2290 u32 i;
2291
2292 if (!data) {
2293 IWL_ERR(mvm, "iwl_wowlan_info_notif data is NULL\n");
2294 status = NULL;
2295 return;
2296 }
2297
2298 if (len < sizeof(*data)) {
2299 IWL_ERR(mvm, "Invalid WoWLAN info notification!\n");
2300 status = NULL;
2301 return;
2302 }
32fed470 2303
0c4aa7a1
YB		 2304 iwl_mvm_convert_key_counters_v5(status, &data->gtk[0].sc);
2305 iwl_mvm_convert_gtk_v3(status, data->gtk);
2306 iwl_mvm_convert_igtk(status, &data->igtk[0]);
32fed470
NG		 2307 status->replay_ctr = le64_to_cpu(data->replay_ctr);
2308 status->pattern_number = le16_to_cpu(data->pattern_number);
2309 for (i = 0; i < IWL_MAX_TID_COUNT; i++)
2310 status->qos_seq_ctr[i] =
2311 le16_to_cpu(data->qos_seq_ctr[i]);
2312 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons);
2313 status->num_of_gtk_rekeys =
2314 le32_to_cpu(data->num_of_gtk_rekeys);
2315 status->received_beacons = le32_to_cpu(data->received_beacons);
2316 status->tid_tear_down = data->tid_tear_down;
2317}
2318
bc68163c
JB		 2319/* Occasionally, templates would be nice. This is one of those times ... */
2320#define iwl_mvm_parse_wowlan_status_common(_ver) \
4d4cbb9b 2321static struct iwl_wowlan_status_data * \
bc68163c 2322iwl_mvm_parse_wowlan_status_common_ ## _ver(struct iwl_mvm *mvm, \
4d4cbb9b
JB		 2323 struct iwl_wowlan_status_ ##_ver *data,\
2324 int len) \
bc68163c 2325{ \
4d4cbb9b
JB		 2326 struct iwl_wowlan_status_data *status; \
2327 int data_size, i; \
bc68163c
JB		 2328 \
2329 if (len < sizeof(*data)) { \
2330 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \
537b76d2 2331 return NULL; \
bc68163c
JB		 2332 } \
2333 \
2334 data_size = ALIGN(le32_to_cpu(data->wake_packet_bufsize), 4); \
2335 if (len != sizeof(*data) + data_size) { \
2336 IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); \
537b76d2 2337 return NULL; \
bc68163c
JB		 2338 } \
2339 \
219ed58f 2340 status = kzalloc(sizeof(*status), GFP_KERNEL); \
bc68163c 2341 if (!status) \
537b76d2 2342 return NULL; \
bc68163c
JB		 2343 \
2344 /* copy all the common fields */ \
4d4cbb9b
JB		 2345 status->replay_ctr = le64_to_cpu(data->replay_ctr); \
2346 status->pattern_number = le16_to_cpu(data->pattern_number); \
2347 status->non_qos_seq_ctr = le16_to_cpu(data->non_qos_seq_ctr); \
2348 for (i = 0; i < 8; i++) \
2349 status->qos_seq_ctr[i] = \
2350 le16_to_cpu(data->qos_seq_ctr[i]); \
2351 status->wakeup_reasons = le32_to_cpu(data->wakeup_reasons); \
2352 status->num_of_gtk_rekeys = \
2353 le32_to_cpu(data->num_of_gtk_rekeys); \
2354 status->received_beacons = le32_to_cpu(data->received_beacons); \
2355 status->wake_packet_length = \
2356 le32_to_cpu(data->wake_packet_length); \
2357 status->wake_packet_bufsize = \
2358 le32_to_cpu(data->wake_packet_bufsize); \
219ed58f
HD		 2359 if (status->wake_packet_bufsize) { \
2360 status->wake_packet = \
2361 kmemdup(data->wake_packet, \
2362 status->wake_packet_bufsize, \
2363 GFP_KERNEL); \
2364 if (!status->wake_packet) { \
2365 kfree(status); \
2366 return NULL; \
2367 } \
2368 } else { \
2369 status->wake_packet = NULL; \
2370 } \
bc68163c
JB		 2371 \
2372 return status; \
2373}
2374
2375iwl_mvm_parse_wowlan_status_common(v6)
2376iwl_mvm_parse_wowlan_status_common(v7)
2377iwl_mvm_parse_wowlan_status_common(v9)
2dc97742 2378iwl_mvm_parse_wowlan_status_common(v12)
bc68163c 2379
4d4cbb9b 2380static struct iwl_wowlan_status_data *
5c157941 2381iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm, u8 sta_id)
2afa6a73 2382{
4d4cbb9b 2383 struct iwl_wowlan_status_data *status;
5c157941
EG		 2384 struct iwl_wowlan_get_status_cmd get_status_cmd = {
2385 .sta_id = cpu_to_le32(sta_id),
2386 };
2afa6a73
LC		 2387 struct iwl_host_cmd cmd = {
2388 .id = WOWLAN_GET_STATUSES,
2389 .flags = CMD_WANT_SKB,
5c157941
EG		 2390 .data = { &get_status_cmd, },
2391 .len = { sizeof(get_status_cmd), },
2afa6a73 2392 };
bc68163c 2393 int ret, len;
250380c9 2394 u8 notif_ver;
971cbe50 2395 u8 cmd_ver = iwl_fw_lookup_cmd_ver(mvm->fw, cmd.id,
5c157941
EG		 2396 IWL_FW_CMD_VER_UNKNOWN);
2397
2398 if (cmd_ver == IWL_FW_CMD_VER_UNKNOWN)
2399 cmd.len[0] = 0;
2afa6a73
LC		 2400
2401 lockdep_assert_held(&mvm->mutex);
2402
2403 ret = iwl_mvm_send_cmd(mvm, &cmd);
2404 if (ret) {
2405 IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret);
2406 return ERR_PTR(ret);
2407 }
2408
250380c9 2409 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
bc68163c
JB		 2410
2411 /* default to 7 (when we have IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL) */
04f78e24 2412 notif_ver = iwl_mvm_lookup_wowlan_status_ver(mvm);
bc68163c 2413
04f78e24 2414 if (notif_ver < 7) {
2afa6a73 2415 struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data;
2afa6a73 2416
4d4cbb9b 2417 status = iwl_mvm_parse_wowlan_status_common_v6(mvm, v6, len);
537b76d2 2418 if (!status)
2afa6a73
LC		 2419 goto out_free_resp;
2420
2421 BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) >
fa4e48fb 2422 sizeof(status->gtk[0].key));
4d4cbb9b
JB		 2423 BUILD_BUG_ON(NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY +
2424 sizeof(v6->gtk.tkip_mic_key) >
fa4e48fb 2425 sizeof(status->gtk[0].key));
2afa6a73
LC		 2426
2427 /* copy GTK info to the right place */
fa4e48fb 2428 memcpy(status->gtk[0].key, v6->gtk.decrypt_key,
2afa6a73 2429 sizeof(v6->gtk.decrypt_key));
fa4e48fb 2430 memcpy(status->gtk[0].key + NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
4d4cbb9b 2431 v6->gtk.tkip_mic_key,
2afa6a73 2432 sizeof(v6->gtk.tkip_mic_key));
4d4cbb9b
JB		 2433
2434 iwl_mvm_convert_key_counters(status, &v6->gtk.rsc.all_tsc_rsc);
2afa6a73
LC		 2435
2436 /* hardcode the key length to 16 since v6 only supports 16 */
fa4e48fb 2437 status->gtk[0].len = 16;
2afa6a73
LC		 2438
2439 /*
2440 * The key index only uses 2 bits (values 0 to 3) and
2441 * we always set bit 7 which means this is the
2442 * currently used key.
2443 */
fa4e48fb 2444 status->gtk[0].flags = v6->gtk.key_index | BIT(7);
bc68163c
JB		 2445 } else if (notif_ver == 7) {
2446 struct iwl_wowlan_status_v7 *v7 = (void *)cmd.resp_pkt->data;
2afa6a73 2447
4d4cbb9b 2448 status = iwl_mvm_parse_wowlan_status_common_v7(mvm, v7, len);
537b76d2 2449 if (!status)
bc68163c 2450 goto out_free_resp;
250380c9 2451
4d4cbb9b 2452 iwl_mvm_convert_key_counters(status, &v7->gtk[0].rsc.all_tsc_rsc);
2dc97742 2453 iwl_mvm_convert_gtk_v2(status, &v7->gtk[0]);
4d4cbb9b 2454 iwl_mvm_convert_igtk(status, &v7->igtk[0]);
058b94dc 2455 } else if (notif_ver == 9 || notif_ver == 10 || notif_ver == 11) {
bc68163c 2456 struct iwl_wowlan_status_v9 *v9 = (void *)cmd.resp_pkt->data;
250380c9 2457
058b94dc
GG		 2458 /* these three command versions have same layout and size, the
2459 * difference is only in a few not used (reserved) fields.
2460 */
4d4cbb9b 2461 status = iwl_mvm_parse_wowlan_status_common_v9(mvm, v9, len);
537b76d2 2462 if (!status)
bc68163c 2463 goto out_free_resp;
2afa6a73 2464
4d4cbb9b 2465 iwl_mvm_convert_key_counters(status, &v9->gtk[0].rsc.all_tsc_rsc);
2dc97742 2466 iwl_mvm_convert_gtk_v2(status, &v9->gtk[0]);
4d4cbb9b 2467 iwl_mvm_convert_igtk(status, &v9->igtk[0]);
2afa6a73 2468
bc68163c 2469 status->tid_tear_down = v9->tid_tear_down;
2dc97742
JB		 2470 } else if (notif_ver == 12) {
2471 struct iwl_wowlan_status_v12 *v12 = (void *)cmd.resp_pkt->data;
2472
2473 status = iwl_mvm_parse_wowlan_status_common_v12(mvm, v12, len);
537b76d2 2474 if (!status)
2dc97742
JB		 2475 goto out_free_resp;
2476
2477 iwl_mvm_convert_key_counters_v5(status, &v12->gtk[0].sc);
fa4e48fb 2478 iwl_mvm_convert_gtk_v3(status, v12->gtk);
2dc97742
JB		 2479 iwl_mvm_convert_igtk(status, &v12->igtk[0]);
2480
2481 status->tid_tear_down = v12->tid_tear_down;
bc68163c
JB		 2482 } else {
2483 IWL_ERR(mvm,
2484 "Firmware advertises unknown WoWLAN status response %d!\n",
2485 notif_ver);
537b76d2 2486 status = NULL;
2afa6a73
LC		 2487 }
2488
2afa6a73
LC		 2489out_free_resp:
2490 iwl_free_resp(&cmd);
2491 return status;
2492}
2493
ec12f457
LC		 2494/* releases the MVM mutex */
2495static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
4da46a06
HD		 2496 struct ieee80211_vif *vif,
2497 struct iwl_wowlan_status_data *status)
ec12f457 2498{
ec12f457 2499 int i;
6ba40cd3 2500 bool keep = false;
ec12f457
LC		 2501 struct iwl_mvm_sta *mvm_ap_sta;
2502
537b76d2 2503 if (!status)
ec12f457 2504 goto out_unlock;
3afec639 2505
19d9fa7a 2506 IWL_DEBUG_WOWLAN(mvm, "wakeup reason 0x%x\n",
4d4cbb9b 2507 status->wakeup_reasons);
7abc4632 2508
6d9d32b8 2509 /* still at hard-coded place 0 for D3 image */
13303c0f
SS		 2510 mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, 0);
2511 if (!mvm_ap_sta)
4da46a06 2512 goto out_unlock;
6d9d32b8 2513
6d9d32b8 2514 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
4d4cbb9b 2515 u16 seq = status->qos_seq_ctr[i];
6d9d32b8
JB		 2516 /* firmware stores last-used value, we store next value */
2517 seq += 0x10;
2518 mvm_ap_sta->tid_data[i].seq_number = seq;
2519 }
2520
286ca8eb 2521 if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_22000) {
ba7136f3
AM		 2522 i = mvm->offload_tid;
2523 iwl_trans_set_q_ptrs(mvm->trans,
2524 mvm_ap_sta->tid_data[i].txq_id,
2525 mvm_ap_sta->tid_data[i].seq_number >> 4);
2526 }
2527
4d4cbb9b 2528 iwl_mvm_report_wakeup_reasons(mvm, vif, status);
6d9d32b8 2529
4d4cbb9b 2530 keep = iwl_mvm_setup_connection_keep(mvm, vif, status);
ec12f457 2531out_unlock:
7abc4632 2532 mutex_unlock(&mvm->mutex);
6ba40cd3 2533 return keep;
9b26b500
JB		 2534}
2535
e4fe5d4b
IP		 2536#define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \
2537 IWL_SCAN_MAX_PROFILES)
2538
5ac54afd 2539struct iwl_mvm_nd_results {
8ed4e659 2540 u32 matched_profiles;
e4fe5d4b 2541 u8 matches[ND_QUERY_BUF_LEN];
8ed4e659
LC		 2542};
2543
2544static int
2545iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
5ac54afd 2546 struct iwl_mvm_nd_results *results)
b04998f3 2547{
5ac54afd 2548 struct iwl_scan_offload_match_info *query;
b04998f3
LC		 2549 struct iwl_host_cmd cmd = {
2550 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD,
2551 .flags = CMD_WANT_SKB,
2552 };
2553 int ret, len;
e4fe5d4b 2554 size_t query_len, matches_len;
5d1234ba 2555 int max_profiles = iwl_umac_scan_get_max_profiles(mvm->fw);
b04998f3
LC		 2556
2557 ret = iwl_mvm_send_cmd(mvm, &cmd);
2558 if (ret) {
2559 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret);
8ed4e659 2560 return ret;
b04998f3
LC		 2561 }
2562
e4fe5d4b
IP		 2563 if (fw_has_api(&mvm->fw->ucode_capa,
2564 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
5ac54afd 2565 query_len = sizeof(struct iwl_scan_offload_match_info);
e4fe5d4b 2566 matches_len = sizeof(struct iwl_scan_offload_profile_match) *
5d1234ba 2567 max_profiles;
e4fe5d4b
IP		 2568 } else {
2569 query_len = sizeof(struct iwl_scan_offload_profiles_query_v1);
2570 matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) *
5d1234ba 2571 max_profiles;
e4fe5d4b
IP		 2572 }
2573
b04998f3 2574 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
e4fe5d4b 2575 if (len < query_len) {
b04998f3 2576 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");
8ed4e659 2577 ret = -EIO;
b04998f3
LC		 2578 goto out_free_resp;
2579 }
2580
2581 query = (void *)cmd.resp_pkt->data;
2582
8ed4e659 2583 results->matched_profiles = le32_to_cpu(query->matched_profiles);
e4fe5d4b 2584 memcpy(results->matches, query->matches, matches_len);
b04998f3 2585
6bbd5521 2586#ifdef CONFIG_IWLWIFI_DEBUGFS
484b3d13
LC		 2587 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done);
2588#endif
2589
b04998f3
LC		 2590out_free_resp:
2591 iwl_free_resp(&cmd);
2592 return ret;
2593}
2594
e4fe5d4b 2595static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm,
5ac54afd 2596 struct iwl_mvm_nd_results *results,
e4fe5d4b
IP		 2597 int idx)
2598{
2599 int n_chans = 0, i;
2600
2601 if (fw_has_api(&mvm->fw->ucode_capa,
2602 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2603 struct iwl_scan_offload_profile_match *matches =
5ac54afd 2604 (void *)results->matches;
e4fe5d4b
IP		 2605
2606 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++)
2607 n_chans += hweight8(matches[idx].matching_channels[i]);
2608 } else {
2609 struct iwl_scan_offload_profile_match_v1 *matches =
5ac54afd 2610 (void *)results->matches;
e4fe5d4b
IP		 2611
2612 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++)
2613 n_chans += hweight8(matches[idx].matching_channels[i]);
2614 }
2615
2616 return n_chans;
2617}
2618
2619static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm,
5ac54afd 2620 struct iwl_mvm_nd_results *results,
e4fe5d4b
IP		 2621 struct cfg80211_wowlan_nd_match *match,
2622 int idx)
2623{
2624 int i;
2625
2626 if (fw_has_api(&mvm->fw->ucode_capa,
2627 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
2628 struct iwl_scan_offload_profile_match *matches =
5ac54afd 2629 (void *)results->matches;
e4fe5d4b
IP		 2630
2631 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++)
2632 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2633 match->channels[match->n_channels++] =
2634 mvm->nd_channels[i]->center_freq;
2635 } else {
2636 struct iwl_scan_offload_profile_match_v1 *matches =
5ac54afd 2637 (void *)results->matches;
e4fe5d4b
IP		 2638
2639 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++)
2640 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
2641 match->channels[match->n_channels++] =
2642 mvm->nd_channels[i]->center_freq;
2643 }
2644}
2645
5ac54afd
IP		 2646/**
2647 * enum iwl_d3_notif - d3 notifications
2648 * @IWL_D3_NOTIF_WOWLAN_INFO: WOWLAN_INFO_NOTIF was received
2649 * @IWL_D3_NOTIF_WOWLAN_WAKE_PKT: WOWLAN_WAKE_PKT_NOTIF was received
2650 * @IWL_D3_NOTIF_PROT_OFFLOAD: PROT_OFFLOAD_NOTIF was received
2651 * @IWL_D3_ND_MATCH_INFO: OFFLOAD_MATCH_INFO_NOTIF was received
2652 * @IWL_D3_NOTIF_D3_END_NOTIF: D3_END_NOTIF was received
2653 */
2654enum iwl_d3_notif {
2655 IWL_D3_NOTIF_WOWLAN_INFO = BIT(0),
2656 IWL_D3_NOTIF_WOWLAN_WAKE_PKT = BIT(1),
2657 IWL_D3_NOTIF_PROT_OFFLOAD = BIT(2),
2658 IWL_D3_ND_MATCH_INFO = BIT(3),
2659 IWL_D3_NOTIF_D3_END_NOTIF = BIT(4)
2660};
2661
2662/* manage d3 resume data */
2663struct iwl_d3_data {
2664 struct iwl_wowlan_status_data *status;
2665 bool test;
2666 u32 d3_end_flags;
2667 u32 notif_expected; /* bitmap - see &enum iwl_d3_notif */
2668 u32 notif_received; /* bitmap - see &enum iwl_d3_notif */
2669 struct iwl_mvm_nd_results *nd_results;
2670 bool nd_results_valid;
2671};
2672
2021a89d 2673static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
4da46a06 2674 struct ieee80211_vif *vif,
5ac54afd 2675 struct iwl_d3_data *d3_data)
2021a89d 2676{
d9718da8 2677 struct cfg80211_wowlan_nd_info *net_detect = NULL;
2021a89d
LC		 2678 struct cfg80211_wowlan_wakeup wakeup = {
2679 .pattern_idx = -1,
2680 };
2681 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
d9718da8 2682 unsigned long matched_profiles;
2021a89d 2683 u32 reasons = 0;
e4fe5d4b 2684 int i, n_matches, ret;
2021a89d 2685
5ac54afd
IP		 2686 if (WARN_ON(!d3_data || !d3_data->status))
2687 goto out;
4da46a06 2688
5ac54afd 2689 reasons = d3_data->status->wakeup_reasons;
2021a89d
LC		 2690
2691 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
2692 wakeup.rfkill_release = true;
2693
b04998f3
LC		 2694 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS)
2695 goto out;
2696
5ac54afd
IP		 2697 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
2698 WOWLAN_INFO_NOTIFICATION, 0)) {
2699 IWL_INFO(mvm, "Query FW for ND results\n");
2700 ret = iwl_mvm_netdetect_query_results(mvm, d3_data->nd_results);
2701
2702 } else {
2703 IWL_INFO(mvm, "Notification based ND results\n");
2704 ret = d3_data->nd_results_valid ? 0 : -1;
2705 }
2706
2707 if (ret || !d3_data->nd_results->matched_profiles) {
2021a89d 2708 wakeup_report = NULL;
b04998f3 2709 goto out;
2021a89d
LC		 2710 }
2711
5ac54afd 2712 matched_profiles = d3_data->nd_results->matched_profiles;
d9718da8
LC		 2713 if (mvm->n_nd_match_sets) {
2714 n_matches = hweight_long(matched_profiles);
2715 } else {
2716 IWL_ERR(mvm, "no net detect match information available\n");
2717 n_matches = 0;
2718 }
2719
83ea00d6 2720 net_detect = kzalloc(struct_size(net_detect, matches, n_matches),
d9718da8
LC		 2721 GFP_KERNEL);
2722 if (!net_detect || !n_matches)
2723 goto out_report_nd;
2724
2725 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) {
2726 struct cfg80211_wowlan_nd_match *match;
ae90c2e5 2727 int idx, n_channels = 0;
8ed4e659 2728
5ac54afd
IP		 2729 n_channels = iwl_mvm_query_num_match_chans(mvm,
2730 d3_data->nd_results,
2731 i);
d9718da8 2732
83ea00d6 2733 match = kzalloc(struct_size(match, channels, n_channels),
8ed4e659 2734 GFP_KERNEL);
d9718da8
LC		 2735 if (!match)
2736 goto out_report_nd;
2737
8ed4e659
LC		 2738 net_detect->matches[net_detect->n_matches++] = match;
2739
ae90c2e5
LC		 2740 /* We inverted the order of the SSIDs in the scan
2741 * request, so invert the index here.
2742 */
2743 idx = mvm->n_nd_match_sets - i - 1;
2744 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len;
2745 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid,
d9718da8
LC		 2746 match->ssid.ssid_len);
2747
8ed4e659
LC		 2748 if (mvm->n_nd_channels < n_channels)
2749 continue;
2750
5ac54afd 2751 iwl_mvm_query_set_freqs(mvm, d3_data->nd_results, match, i);
d9718da8
LC		 2752 }
2753
2754out_report_nd:
2755 wakeup.net_detect = net_detect;
b04998f3 2756out:
d9718da8
LC		 2757 iwl_mvm_free_nd(mvm);
2758
2021a89d
LC		 2759 mutex_unlock(&mvm->mutex);
2760 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
d9718da8
LC		 2761
2762 if (net_detect) {
2763 for (i = 0; i < net_detect->n_matches; i++)
2764 kfree(net_detect->matches[i]);
2765 kfree(net_detect);
2766 }
2021a89d
LC		 2767}
2768
6d9d32b8
JB		 2769static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
2770 struct ieee80211_vif *vif)
2771{
2772 /* skip the one we keep connection on */
2773 if (data == vif)
2774 return;
2775
2776 if (vif->type == NL80211_IFTYPE_STATION)
2777 ieee80211_resume_disconnect(vif);
2778}
2779
577ddbee 2780static bool iwl_mvm_rt_status(struct iwl_trans *trans, u32 base, u32 *err_id)
f57d104f 2781{
f57d104f
SM		 2782 struct error_table_start {
2783 /* cf. struct iwl_error_event_table */
2784 u32 valid;
577ddbee 2785 __le32 err_id;
f57d104f
SM		 2786 } err_info;
2787
577ddbee
MG		 2788 if (!base)
2789 return false;
2790
2791 iwl_trans_read_mem_bytes(trans, base,
f57d104f 2792 &err_info, sizeof(err_info));
577ddbee
MG		 2793 if (err_info.valid && err_id)
2794 *err_id = le32_to_cpu(err_info.err_id);
f57d104f 2795
577ddbee
MG		 2796 return !!err_info.valid;
2797}
2798
2799static bool iwl_mvm_check_rt_status(struct iwl_mvm *mvm,
2800 struct ieee80211_vif *vif)
2801{
2802 u32 err_id;
2803
2804 /* check for lmac1 error */
2805 if (iwl_mvm_rt_status(mvm->trans,
2806 mvm->trans->dbg.lmac_error_event_table[0],
2807 &err_id)) {
2808 if (err_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
2809 struct cfg80211_wowlan_wakeup wakeup = {
2810 .rfkill_release = true,
2811 };
2812 ieee80211_report_wowlan_wakeup(vif, &wakeup,
2813 GFP_KERNEL);
2814 }
2815 return true;
f57d104f 2816 }
577ddbee
MG		 2817
2818 /* check if we have lmac2 set and check for error */
2819 if (iwl_mvm_rt_status(mvm->trans,
2820 mvm->trans->dbg.lmac_error_event_table[1], NULL))
2821 return true;
2822
2823 /* check for umac error */
2824 if (iwl_mvm_rt_status(mvm->trans,
2825 mvm->trans->dbg.umac_error_event_table, NULL))
2826 return true;
2827
2828 return false;
f57d104f
SM		 2829}
2830
4da46a06
HD		 2831/*
2832 * This function assumes:
2833 * 1. The mutex is already held.
2834 * 2. The callee functions unlock the mutex.
2835 */
4a0e6422 2836static bool
5ac54afd
IP		 2837iwl_mvm_choose_query_wakeup_reasons(struct iwl_mvm *mvm,
2838 struct ieee80211_vif *vif,
2839 struct iwl_d3_data *d3_data)
4da46a06
HD		 2840{
2841 lockdep_assert_held(&mvm->mutex);
2842
2843 /* if FW uses status notification, status shouldn't be NULL here */
2844 if (!d3_data->status) {
2845 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
650cadb7
GG		 2846 u8 sta_id = mvm->net_detect ? IWL_MVM_INVALID_STA :
2847 mvmvif->deflink.ap_sta_id;
4da46a06 2848
219ed58f 2849 d3_data->status = iwl_mvm_send_wowlan_get_status(mvm, sta_id);
4da46a06
HD		 2850 }
2851
2852 if (mvm->net_detect) {
5ac54afd 2853 iwl_mvm_query_netdetect_reasons(mvm, vif, d3_data);
4da46a06
HD		 2854 } else {
2855 bool keep = iwl_mvm_query_wakeup_reasons(mvm, vif,
2856 d3_data->status);
2857
2858#ifdef CONFIG_IWLWIFI_DEBUGFS
2859 if (keep)
2860 mvm->keep_vif = vif;
2861#endif
2862
4a0e6422 2863 return keep;
4da46a06 2864 }
4a0e6422 2865 return false;
4da46a06
HD		 2866}
2867
219ed58f
HD		 2868#define IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT (IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET | \
2869 IWL_WOWLAN_WAKEUP_BY_PATTERN | \
2870 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN |\
2871 IWL_WAKEUP_BY_PATTERN_IPV4_TCP_SYN_WILDCARD |\
2872 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN |\
2873 IWL_WAKEUP_BY_PATTERN_IPV6_TCP_SYN_WILDCARD)
2874
2875static int iwl_mvm_wowlan_store_wake_pkt(struct iwl_mvm *mvm,
2876 struct iwl_wowlan_wake_pkt_notif *notif,
2877 struct iwl_wowlan_status_data *status,
2878 u32 len)
2879{
2880 u32 data_size, packet_len = le32_to_cpu(notif->wake_packet_length);
2881
2882 if (len < sizeof(*notif)) {
2883 IWL_ERR(mvm, "Invalid WoWLAN wake packet notification!\n");
2884 return -EIO;
2885 }
2886
2887 if (WARN_ON(!status)) {
2888 IWL_ERR(mvm, "Got wake packet notification but wowlan status data is NULL\n");
2889 return -EIO;
2890 }
2891
2892 if (WARN_ON(!(status->wakeup_reasons &
2893 IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT))) {
2894 IWL_ERR(mvm, "Got wakeup packet but wakeup reason is %x\n",
2895 status->wakeup_reasons);
2896 return -EIO;
2897 }
2898
2899 data_size = len - offsetof(struct iwl_wowlan_wake_pkt_notif, wake_packet);
2900
2901 /* data_size got the padding from the notification, remove it. */
2902 if (packet_len < data_size)
2903 data_size = packet_len;
2904
2905 status->wake_packet = kmemdup(notif->wake_packet, data_size,
2906 GFP_ATOMIC);
2907
2908 if (!status->wake_packet)
2909 return -ENOMEM;
2910
2911 status->wake_packet_length = packet_len;
2912 status->wake_packet_bufsize = data_size;
2913
2914 return 0;
2915}
2916
5ac54afd
IP		 2917static void iwl_mvm_nd_match_info_handler(struct iwl_mvm *mvm,
2918 struct iwl_d3_data *d3_data,
2919 struct iwl_scan_offload_match_info *notif,
2920 u32 len)
2921{
2922 struct iwl_wowlan_status_data *status = d3_data->status;
2923 struct ieee80211_vif *vif = iwl_mvm_get_bss_vif(mvm);
2924 struct iwl_mvm_nd_results *results = d3_data->nd_results;
2925 size_t i, matches_len = sizeof(struct iwl_scan_offload_profile_match) *
2926 iwl_umac_scan_get_max_profiles(mvm->fw);
2927
2928 if (IS_ERR_OR_NULL(vif))
2929 return;
2930
2931 if (len < sizeof(struct iwl_scan_offload_match_info)) {
2932 IWL_ERR(mvm, "Invalid scan match info notification\n");
2933 return;
2934 }
2935
2936 if (!mvm->net_detect) {
2937 IWL_ERR(mvm, "Unexpected scan match info notification\n");
2938 return;
2939 }
2940
2941 if (!status || status->wakeup_reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
2942 IWL_ERR(mvm,
2943 "Ignore scan match info notification: no reason\n");
2944 return;
2945 }
2946
2947#ifdef CONFIG_IWLWIFI_DEBUGFS
2948 mvm->last_netdetect_scans = le32_to_cpu(notif->n_scans_done);
2949#endif
2950
2951 results->matched_profiles = le32_to_cpu(notif->matched_profiles);
2952 IWL_INFO(mvm, "number of matched profiles=%u\n",
2953 results->matched_profiles);
2954
2955 if (results->matched_profiles) {
2956 memcpy(results->matches, notif->matches, matches_len);
2957 d3_data->nd_results_valid = TRUE;
2958 }
2959
2960 /* no scan should be active at this point */
2961 mvm->scan_status = 0;
2962 for (i = 0; i < mvm->max_scans; i++)
2963 mvm->scan_uid_status[i] = 0;
2964}
2965
4da46a06
HD		 2966static bool iwl_mvm_wait_d3_notif(struct iwl_notif_wait_data *notif_wait,
2967 struct iwl_rx_packet *pkt, void *data)
2968{
2969 struct iwl_mvm *mvm =
2970 container_of(notif_wait, struct iwl_mvm, notif_wait);
2971 struct iwl_d3_data *d3_data = data;
0c4aa7a1 2972 u32 len = iwl_rx_packet_payload_len(pkt);
219ed58f 2973 int ret;
905d50dd
HD		 2974 int wowlan_info_ver = iwl_fw_lookup_notif_ver(mvm->fw,
2975 PROT_OFFLOAD_GROUP,
2976 WOWLAN_INFO_NOTIFICATION,
2977 IWL_FW_CMD_VER_UNKNOWN);
2978
4da46a06
HD		 2979
2980 switch (WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd)) {
2981 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION): {
905d50dd 2982
457d7fb0
JB		 2983 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_INFO) {
2984 /* We might get two notifications due to dual bss */
2985 IWL_DEBUG_WOWLAN(mvm,
2986 "Got additional wowlan info notification\n");
2987 break;
2988 }
2989
905d50dd 2990 if (wowlan_info_ver < 2) {
0c4aa7a1
YB		 2991 struct iwl_wowlan_info_notif_v1 *notif_v1 =
2992 (void *)pkt->data;
2993 struct iwl_wowlan_info_notif_v2 *notif_v2;
2994
2995 notif_v2 = kmemdup(notif_v1, sizeof(*notif_v2), GFP_ATOMIC);
905d50dd 2996
0c4aa7a1 2997 if (!notif_v2)
905d50dd
HD		 2998 return false;
2999
0c4aa7a1
YB		 3000 notif_v2->tid_tear_down = notif_v1->tid_tear_down;
3001 notif_v2->station_id = notif_v1->station_id;
3002 memset_after(notif_v2, 0, station_id);
3003 iwl_mvm_parse_wowlan_info_notif_v2(mvm, notif_v2,
3004 d3_data->status,
3005 len);
3006 kfree(notif_v2);
3007
3008 } else if (wowlan_info_ver == 2) {
3009 struct iwl_wowlan_info_notif_v2 *notif_v2 =
3010 (void *)pkt->data;
3011
3012 iwl_mvm_parse_wowlan_info_notif_v2(mvm, notif_v2,
3013 d3_data->status,
3014 len);
905d50dd 3015 } else {
0c4aa7a1
YB		 3016 struct iwl_wowlan_info_notif *notif =
3017 (void *)pkt->data;
3018
3019 iwl_mvm_parse_wowlan_info_notif(mvm, notif,
3020 d3_data->status, len);
905d50dd 3021 }
4da46a06 3022
4da46a06 3023 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_INFO;
905d50dd 3024
219ed58f
HD		 3025 if (d3_data->status &&
3026 d3_data->status->wakeup_reasons & IWL_WOWLAN_WAKEUP_REASON_HAS_WAKEUP_PKT)
3027 /* We are supposed to get also wake packet notif */
3028 d3_data->notif_expected |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT;
3029
3030 break;
3031 }
3032 case WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION): {
3033 struct iwl_wowlan_wake_pkt_notif *notif = (void *)pkt->data;
3034
3035 if (d3_data->notif_received & IWL_D3_NOTIF_WOWLAN_WAKE_PKT) {
3036 /* We shouldn't get two wake packet notifications */
3037 IWL_ERR(mvm,
3038 "Got additional wowlan wake packet notification\n");
3039 } else {
3040 d3_data->notif_received |= IWL_D3_NOTIF_WOWLAN_WAKE_PKT;
3041 len = iwl_rx_packet_payload_len(pkt);
3042 ret = iwl_mvm_wowlan_store_wake_pkt(mvm, notif,
3043 d3_data->status,
3044 len);
3045 if (ret)
3046 IWL_ERR(mvm,
3047 "Can't parse WOWLAN_WAKE_PKT_NOTIFICATION\n");
3048 }
3049
4da46a06
HD		 3050 break;
3051 }
5ac54afd
IP		 3052 case WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF): {
3053 struct iwl_scan_offload_match_info *notif = (void *)pkt->data;
3054
3055 if (d3_data->notif_received & IWL_D3_ND_MATCH_INFO) {
3056 IWL_ERR(mvm,
3057 "Got additional netdetect match info\n");
3058 break;
3059 }
3060
3061 d3_data->notif_received |= IWL_D3_ND_MATCH_INFO;
3062
3063 /* explicitly set this in the 'expected' as well */
3064 d3_data->notif_expected |= IWL_D3_ND_MATCH_INFO;
3065
3066 len = iwl_rx_packet_payload_len(pkt);
3067 iwl_mvm_nd_match_info_handler(mvm, d3_data, notif, len);
3068 break;
3069 }
c39e718a
HD		 3070 case WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION): {
3071 struct iwl_mvm_d3_end_notif *notif = (void *)pkt->data;
3072
3073 d3_data->d3_end_flags = __le32_to_cpu(notif->flags);
3074 d3_data->notif_received |= IWL_D3_NOTIF_D3_END_NOTIF;
3075
3076 break;
3077 }
4da46a06
HD		 3078 default:
3079 WARN_ON(1);
3080 }
3081
3082 return d3_data->notif_received == d3_data->notif_expected;
3083}
3084
b75dac84
HD		 3085static int iwl_mvm_resume_firmware(struct iwl_mvm *mvm, bool test)
3086{
3087 int ret;
3088 enum iwl_d3_status d3_status;
3089 struct iwl_host_cmd cmd = {
3090 .id = D0I3_END_CMD,
3091 .flags = CMD_WANT_SKB | CMD_SEND_IN_D3,
3092 };
3093 bool reset = fw_has_capa(&mvm->fw->ucode_capa,
3094 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
3095
3096 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !reset);
3097 if (ret)
3098 return ret;
3099
3100 if (d3_status != IWL_D3_STATUS_ALIVE) {
3101 IWL_INFO(mvm, "Device was reset during suspend\n");
3102 return -ENOENT;
3103 }
3104
3105 /*
3106 * We should trigger resume flow using command only for 22000 family
3107 * AX210 and above don't need the command since they have
3108 * the doorbell interrupt.
3109 */
3110 if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_22000 &&
3111 fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_D0I3_END_FIRST)) {
3112 ret = iwl_mvm_send_cmd(mvm, &cmd);
3113 if (ret < 0)
3114 IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n",
3115 ret);
3116 }
3117
3118 return ret;
3119}
3120
4da46a06
HD		 3121#define IWL_MVM_D3_NOTIF_TIMEOUT (HZ / 5)
3122
3123static int iwl_mvm_d3_notif_wait(struct iwl_mvm *mvm,
b75dac84 3124 struct iwl_d3_data *d3_data)
4da46a06
HD		 3125{
3126 static const u16 d3_resume_notif[] = {
219ed58f 3127 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_INFO_NOTIFICATION),
c39e718a 3128 WIDE_ID(PROT_OFFLOAD_GROUP, WOWLAN_WAKE_PKT_NOTIFICATION),
5ac54afd 3129 WIDE_ID(SCAN_GROUP, OFFLOAD_MATCH_INFO_NOTIF),
c39e718a 3130 WIDE_ID(PROT_OFFLOAD_GROUP, D3_END_NOTIFICATION)
4da46a06
HD		 3131 };
3132 struct iwl_notification_wait wait_d3_notif;
3133 int ret;
3134
3135 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3_notif,
3136 d3_resume_notif, ARRAY_SIZE(d3_resume_notif),
3137 iwl_mvm_wait_d3_notif, d3_data);
3138
b75dac84 3139 ret = iwl_mvm_resume_firmware(mvm, d3_data->test);
4da46a06
HD		 3140 if (ret) {
3141 iwl_remove_notification(&mvm->notif_wait, &wait_d3_notif);
3142 return ret;
3143 }
3144
4da46a06
HD		 3145 return iwl_wait_notification(&mvm->notif_wait, &wait_d3_notif,
3146 IWL_MVM_D3_NOTIF_TIMEOUT);
3147}
3148
319756ad
HD		 3149static inline bool iwl_mvm_d3_resume_notif_based(struct iwl_mvm *mvm)
3150{
3151 return iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3152 WOWLAN_INFO_NOTIFICATION, 0) &&
3153 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3154 WOWLAN_WAKE_PKT_NOTIFICATION, 0) &&
3155 iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3156 D3_END_NOTIFICATION, 0);
3157}
3158
debff618 3159static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
8ca151b5 3160{
8ca151b5 3161 struct ieee80211_vif *vif = NULL;
23ae6128 3162 int ret = 1;
5ac54afd 3163 struct iwl_mvm_nd_results results = {};
4da46a06
HD		 3164 struct iwl_d3_data d3_data = {
3165 .test = test,
c39e718a
HD		 3166 .notif_expected =
3167 IWL_D3_NOTIF_WOWLAN_INFO |
3168 IWL_D3_NOTIF_D3_END_NOTIF,
5ac54afd
IP		 3169 .nd_results_valid = false,
3170 .nd_results = &results,
4da46a06 3171 };
23ae6128
MG		 3172 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
3173 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
fcea37b2
LC		 3174 bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa,
3175 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST);
319756ad 3176 bool resume_notif_based = iwl_mvm_d3_resume_notif_based(mvm);
4a0e6422 3177 bool keep = false;
8ca151b5
JB		 3178
3179 mutex_lock(&mvm->mutex);
3180
e8fe3b41
IP		 3181 mvm->last_reset_or_resume_time_jiffies = jiffies;
3182
8ca151b5 3183 /* get the BSS vif pointer again */
7f549e2c
LC		 3184 vif = iwl_mvm_get_bss_vif(mvm);
3185 if (IS_ERR_OR_NULL(vif))
a500e469 3186 goto err;
8ca151b5 3187
2d8c2615 3188 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
afc66bb7 3189
f57d104f
SM		 3190 if (iwl_mvm_check_rt_status(mvm, vif)) {
3191 set_bit(STATUS_FW_ERROR, &mvm->trans->status);
3192 iwl_mvm_dump_nic_error_log(mvm);
4d75a9eb
SM		 3193 iwl_dbg_tlv_time_point(&mvm->fwrt,
3194 IWL_FW_INI_TIME_POINT_FW_ASSERT, NULL);
f57d104f 3195 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
124e0eba 3196 false, 0);
f57d104f
SM		 3197 ret = 1;
3198 goto err;
3199 }
3200
4da46a06
HD		 3201 if (resume_notif_based) {
3202 d3_data.status = kzalloc(sizeof(*d3_data.status), GFP_KERNEL);
3203 if (!d3_data.status) {
3204 IWL_ERR(mvm, "Failed to allocate wowlan status\n");
3205 ret = -ENOMEM;
3206 goto err;
3207 }
3208
b75dac84
HD		 3209 ret = iwl_mvm_d3_notif_wait(mvm, &d3_data);
3210 if (ret)
3211 goto err;
4da46a06 3212 } else {
b75dac84
HD		 3213 ret = iwl_mvm_resume_firmware(mvm, test);
3214 if (ret < 0)
fcea37b2 3215 goto err;
fcea37b2
LC		 3216 }
3217
2f629a77 3218 /* after the successful handshake, we're out of D3 */
708a39aa
HD		 3219 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
3220
c39e718a
HD		 3221 /* when reset is required we can't send these following commands */
3222 if (d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)
3223 goto query_wakeup_reasons;
3224
47c8b154
JD		 3225 /*
3226 * Query the current location and source from the D3 firmware so we
3227 * can play it back when we re-intiailize the D0 firmware
3228 */
3229 iwl_mvm_update_changed_regdom(mvm);
3230
6ce1e5c0
GA		 3231 /* Re-configure PPAG settings */
3232 iwl_mvm_ppag_send_cmd(mvm);
3233
42ce76d6
LC		 3234 if (!unified_image)
3235 /* Re-configure default SAR profile */
3236 iwl_mvm_sar_select_profile(mvm, 1, 1);
3237
4da46a06 3238 if (mvm->net_detect && unified_image) {
5a143db8
LC		 3239 /* If this is a non-unified image, we restart the FW,
3240 * so no need to stop the netdetect scan. If that
3241 * fails, continue and try to get the wake-up reasons,
3242 * but trigger a HW restart by keeping a failure code
3243 * in ret.
3244 */
4da46a06
HD		 3245 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT,
3246 false);
2021a89d 3247 }
8ca151b5 3248
c39e718a 3249query_wakeup_reasons:
4a0e6422 3250 keep = iwl_mvm_choose_query_wakeup_reasons(mvm, vif, &d3_data);
4da46a06
HD		 3251 /* has unlocked the mutex, so skip that */
3252 goto out;
3253
a500e469 3254err:
8ca151b5 3255 mutex_unlock(&mvm->mutex);
e0ede177 3256out:
219ed58f
HD		 3257 if (d3_data.status)
3258 kfree(d3_data.status->wake_packet);
4da46a06
HD		 3259 kfree(d3_data.status);
3260 iwl_mvm_free_nd(mvm);
3261
4a0e6422
YB		 3262 if (!d3_data.test && !mvm->net_detect)
3263 ieee80211_iterate_active_interfaces_mtx(mvm->hw,
3264 IEEE80211_IFACE_ITER_NORMAL,
3265 iwl_mvm_d3_disconnect_iter,
3266 keep ? vif : NULL);
3267
96d2bfb7
ST		 3268 clear_bit(IWL_MVM_STATUS_IN_D3, &mvm->status);
3269
fcea37b2 3270 /* no need to reset the device in unified images, if successful */
23ae6128 3271 if (unified_image && !ret) {
fcea37b2
LC		 3272 /* nothing else to do if we already sent D0I3_END_CMD */
3273 if (d0i3_first)
3274 return 0;
3275
c39e718a
HD		 3276 if (!iwl_fw_lookup_notif_ver(mvm->fw, PROT_OFFLOAD_GROUP,
3277 D3_END_NOTIFICATION, 0)) {
3278 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL);
3279 if (!ret)
3280 return 0;
3281 } else if (!(d3_data.d3_end_flags & IWL_D0I3_RESET_REQUIRE)) {
23ae6128 3282 return 0;
c39e718a 3283 }
23ae6128
MG		 3284 }
3285
3286 /*
3287 * Reconfigure the device in one of the following cases:
3288 * 1. We are not using a unified image
3289 * 2. We are using a unified image but had an error while exiting D3
3290 */
59cd827f 3291 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
23ae6128 3292
2f629a77
JB		 3293 /* regardless of what happened, we're now out of D3 */
3294 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
3295
8ca151b5
JB		 3296 return 1;
3297}
3298
2d42801b
EP		 3299int iwl_mvm_resume(struct ieee80211_hw *hw)
3300{
3301 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b7282643 3302 int ret;
2d42801b 3303
34b79fcf 3304 ret = __iwl_mvm_resume(mvm, false);
b7282643 3305
7d9d0d56
LC		 3306 iwl_mvm_resume_tcm(mvm);
3307
7f8ae00f
HD		 3308 iwl_fw_runtime_resume(&mvm->fwrt);
3309
b7282643 3310 return ret;
debff618
JB		 3311}
3312
8ca151b5
JB		 3313void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
3314{
3315 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
3316
3317 device_set_wakeup_enable(mvm->trans->dev, enabled);
3318}
debff618
JB		 3319
3320#ifdef CONFIG_IWLWIFI_DEBUGFS
3321static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
3322{
3323 struct iwl_mvm *mvm = inode->i_private;
3324 int err;
3325
3326 if (mvm->d3_test_active)
3327 return -EBUSY;
3328
3329 file->private_data = inode->i_private;
3330
7d9d0d56
LC		 3331 iwl_mvm_pause_tcm(mvm, true);
3332
7f8ae00f
HD		 3333 iwl_fw_runtime_suspend(&mvm->fwrt);
3334
debff618
JB		 3335 /* start pseudo D3 */
3336 rtnl_lock();
59e1221f 3337 wiphy_lock(mvm->hw->wiphy);
debff618 3338 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
59e1221f 3339 wiphy_unlock(mvm->hw->wiphy);
debff618
JB		 3340 rtnl_unlock();
3341 if (err > 0)
3342 err = -EINVAL;
cfbc6c4c 3343 if (err)
debff618 3344 return err;
cfbc6c4c 3345
debff618 3346 mvm->d3_test_active = true;
78c9df66 3347 mvm->keep_vif = NULL;
debff618
JB		 3348 return 0;
3349}
3350
3351static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
3352 size_t count, loff_t *ppos)
3353{
3354 struct iwl_mvm *mvm = file->private_data;
3355 u32 pme_asserted;
3356
3357 while (true) {
4ed80a86
EP		 3358 /* read pme_ptr if available */
3359 if (mvm->d3_test_pme_ptr) {
3360 pme_asserted = iwl_trans_read_mem32(mvm->trans,
3361 mvm->d3_test_pme_ptr);
3362 if (pme_asserted)
3363 break;
3364 }
3365
debff618
JB		 3366 if (msleep_interruptible(100))
3367 break;
3368 }
3369
3370 return 0;
3371}
3372
3373static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
3374 struct ieee80211_vif *vif)
3375{
78c9df66
EP		 3376 /* skip the one we keep connection on */
3377 if (_data == vif)
3378 return;
3379
debff618
JB		 3380 if (vif->type == NL80211_IFTYPE_STATION)
3381 ieee80211_connection_loss(vif);
3382}
3383
3384static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
3385{
3386 struct iwl_mvm *mvm = inode->i_private;
85cd69b8
LC		 3387 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
3388 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
debff618
JB		 3389
3390 mvm->d3_test_active = false;
b7282643 3391
2d8c2615
SM		 3392 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
3393
31ca09dd 3394 rtnl_lock();
59e1221f 3395 wiphy_lock(mvm->hw->wiphy);
debff618 3396 __iwl_mvm_resume(mvm, true);
59e1221f 3397 wiphy_unlock(mvm->hw->wiphy);
31ca09dd 3398 rtnl_unlock();
b7282643 3399
7d9d0d56
LC		 3400 iwl_mvm_resume_tcm(mvm);
3401
7f8ae00f
HD		 3402 iwl_fw_runtime_resume(&mvm->fwrt);
3403
debff618 3404 iwl_abort_notification_waits(&mvm->notif_wait);
85cd69b8
LC		 3405 if (!unified_image) {
3406 int remaining_time = 10;
debff618 3407
85cd69b8
LC		 3408 ieee80211_restart_hw(mvm->hw);
3409
3410 /* wait for restart and disconnect all interfaces */
3411 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
3412 remaining_time > 0) {
3413 remaining_time--;
3414 msleep(1000);
3415 }
debff618 3416
85cd69b8
LC		 3417 if (remaining_time == 0)
3418 IWL_ERR(mvm, "Timed out waiting for HW restart!\n");
3419 }
debff618
JB		 3420
3421 ieee80211_iterate_active_interfaces_atomic(
3422 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
78c9df66 3423 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif);
debff618 3424
debff618
JB		 3425 return 0;
3426}
3427
3428const struct file_operations iwl_dbgfs_d3_test_ops = {
3429 .llseek = no_llseek,
3430 .open = iwl_mvm_d3_test_open,
3431 .read = iwl_mvm_d3_test_read,
3432 .release = iwl_mvm_d3_test_release,
3433};
3434#endif
Linux 6.x block layer and io_uring tree(s)