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iwlwifi: dbg: move debug recording stop from trans to op mode
[linux-2.6-block.git] / drivers / net / wireless / intel / iwlwifi / mvm / d3.c
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8ca151b5
JB		 1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
51368bf7 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
65ff556b 9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
fcea37b2 10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
e4fe5d4b 11 * Copyright(c) 2018 - 2019 Intel Corporation
8ca151b5
JB		 12 *
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of version 2 of the GNU General Public License as
15 * published by the Free Software Foundation.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
8ca151b5 22 * The full GNU General Public License is included in this distribution
410dc5aa 23 * in the file called COPYING.
8ca151b5
JB		 24 *
25 * Contact Information:
cb2f8277 26 * Intel Linux Wireless <linuxwifi@intel.com>
8ca151b5
JB		 27 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
28 *
29 * BSD LICENSE
30 *
51368bf7 31 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
65ff556b 32 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
fcea37b2 33 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
e4fe5d4b 34 * Copyright(c) 2018 - 2019 Intel Corporation
8ca151b5
JB		 35 * All rights reserved.
36 *
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
39 * are met:
40 *
41 * * Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * * Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in
45 * the documentation and/or other materials provided with the
46 * distribution.
47 * * Neither the name Intel Corporation nor the names of its
48 * contributors may be used to endorse or promote products derived
49 * from this software without specific prior written permission.
50 *
51 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
52 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
53 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
54 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
55 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
56 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
57 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
61 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *
63 *****************************************************************************/
64
f444eb10 65#include <linux/etherdevice.h>
f0c2646a 66#include <linux/ip.h>
debff618 67#include <linux/fs.h>
8ca151b5
JB		 68#include <net/cfg80211.h>
69#include <net/ipv6.h>
f0c2646a 70#include <net/tcp.h>
f7fc5989 71#include <net/addrconf.h>
8ca151b5
JB		 72#include "iwl-modparams.h"
73#include "fw-api.h"
74#include "mvm.h"
75
76void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
77 struct ieee80211_vif *vif,
78 struct cfg80211_gtk_rekey_data *data)
79{
80 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
81 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
82
3b37f4c9 83 if (iwlwifi_mod_params.swcrypto)
8ca151b5
JB		 84 return;
85
86 mutex_lock(&mvm->mutex);
87
88 memcpy(mvmvif->rekey_data.kek, data->kek, NL80211_KEK_LEN);
89 memcpy(mvmvif->rekey_data.kck, data->kck, NL80211_KCK_LEN);
90 mvmvif->rekey_data.replay_ctr =
cba84570 91 cpu_to_le64(be64_to_cpup((__be64 *)data->replay_ctr));
8ca151b5
JB		 92 mvmvif->rekey_data.valid = true;
93
94 mutex_unlock(&mvm->mutex);
95}
96
97#if IS_ENABLED(CONFIG_IPV6)
98void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
99 struct ieee80211_vif *vif,
100 struct inet6_dev *idev)
101{
102 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
103 struct inet6_ifaddr *ifa;
104 int idx = 0;
105
c97dab40
SS		 106 memset(mvmvif->tentative_addrs, 0, sizeof(mvmvif->tentative_addrs));
107
a3777e0f 108 read_lock_bh(&idev->lock);
8ca151b5
JB		 109 list_for_each_entry(ifa, &idev->addr_list, if_list) {
110 mvmvif->target_ipv6_addrs[idx] = ifa->addr;
c97dab40
SS		 111 if (ifa->flags & IFA_F_TENTATIVE)
112 __set_bit(idx, mvmvif->tentative_addrs);
8ca151b5 113 idx++;
5369d6c1 114 if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX)
8ca151b5
JB		 115 break;
116 }
a3777e0f 117 read_unlock_bh(&idev->lock);
8ca151b5
JB		 118
119 mvmvif->num_target_ipv6_addrs = idx;
120}
121#endif
122
123void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
124 struct ieee80211_vif *vif, int idx)
125{
126 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
127
128 mvmvif->tx_key_idx = idx;
129}
130
131static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out)
132{
133 int i;
134
135 for (i = 0; i < IWL_P1K_SIZE; i++)
136 out[i] = cpu_to_le16(p1k[i]);
137}
138
f5e28eac
JB		 139static const u8 *iwl_mvm_find_max_pn(struct ieee80211_key_conf *key,
140 struct iwl_mvm_key_pn *ptk_pn,
141 struct ieee80211_key_seq *seq,
142 int tid, int queues)
143{
144 const u8 *ret = seq->ccmp.pn;
145 int i;
146
147 /* get the PN from mac80211, used on the default queue */
148 ieee80211_get_key_rx_seq(key, tid, seq);
149
150 /* and use the internal data for the other queues */
151 for (i = 1; i < queues; i++) {
152 const u8 *tmp = ptk_pn->q[i].pn[tid];
153
154 if (memcmp(ret, tmp, IEEE80211_CCMP_PN_LEN) <= 0)
155 ret = tmp;
156 }
157
158 return ret;
159}
160
8ca151b5
JB		 161struct wowlan_key_data {
162 struct iwl_wowlan_rsc_tsc_params_cmd *rsc_tsc;
163 struct iwl_wowlan_tkip_params_cmd *tkip;
ac8ef0ce 164 bool error, use_rsc_tsc, use_tkip, configure_keys;
5312e54d 165 int wep_key_idx;
8ca151b5
JB		 166};
167
168static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw,
169 struct ieee80211_vif *vif,
170 struct ieee80211_sta *sta,
171 struct ieee80211_key_conf *key,
172 void *_data)
173{
174 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
175 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
176 struct wowlan_key_data *data = _data;
177 struct aes_sc *aes_sc, *aes_tx_sc = NULL;
178 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
179 struct iwl_p1k_cache *rx_p1ks;
180 u8 *rx_mic_key;
181 struct ieee80211_key_seq seq;
182 u32 cur_rx_iv32 = 0;
183 u16 p1k[IWL_P1K_SIZE];
184 int ret, i;
185
8ca151b5
JB		 186 switch (key->cipher) {
187 case WLAN_CIPHER_SUITE_WEP40:
188 case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */
189 struct {
190 struct iwl_mvm_wep_key_cmd wep_key_cmd;
191 struct iwl_mvm_wep_key wep_key;
192 } __packed wkc = {
193 .wep_key_cmd.mac_id_n_color =
194 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
195 mvmvif->color)),
196 .wep_key_cmd.num_keys = 1,
197 /* firmware sets STA_KEY_FLG_WEP_13BYTES */
198 .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP,
199 .wep_key.key_index = key->keyidx,
200 .wep_key.key_size = key->keylen,
201 };
202
203 /*
204 * This will fail -- the key functions don't set support
205 * pairwise WEP keys. However, that's better than silently
206 * failing WoWLAN. Or maybe not?
207 */
208 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
209 break;
210
211 memcpy(&wkc.wep_key.key[3], key->key, key->keylen);
212 if (key->keyidx == mvmvif->tx_key_idx) {
213 /* TX key must be at offset 0 */
214 wkc.wep_key.key_offset = 0;
215 } else {
216 /* others start at 1 */
5312e54d
JB		 217 data->wep_key_idx++;
218 wkc.wep_key.key_offset = data->wep_key_idx;
8ca151b5
JB		 219 }
220
ac8ef0ce
EP		 221 if (data->configure_keys) {
222 mutex_lock(&mvm->mutex);
223 ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0,
224 sizeof(wkc), &wkc);
225 data->error = ret != 0;
226
227 mvm->ptk_ivlen = key->iv_len;
228 mvm->ptk_icvlen = key->icv_len;
229 mvm->gtk_ivlen = key->iv_len;
230 mvm->gtk_icvlen = key->icv_len;
231 mutex_unlock(&mvm->mutex);
232 }
f444eb10 233
8ca151b5 234 /* don't upload key again */
ac8ef0ce 235 return;
8ca151b5
JB		 236 }
237 default:
238 data->error = true;
ac8ef0ce 239 return;
8ca151b5
JB		 240 case WLAN_CIPHER_SUITE_AES_CMAC:
241 /*
242 * Ignore CMAC keys -- the WoWLAN firmware doesn't support them
243 * but we also shouldn't abort suspend due to that. It does have
244 * support for the IGTK key renewal, but doesn't really use the
245 * IGTK for anything. This means we could spuriously wake up or
246 * be deauthenticated, but that was considered acceptable.
247 */
ac8ef0ce 248 return;
8ca151b5
JB		 249 case WLAN_CIPHER_SUITE_TKIP:
250 if (sta) {
1ad4f639
EP		 251 u64 pn64;
252
8ca151b5
JB		 253 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc;
254 tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc;
255
256 rx_p1ks = data->tkip->rx_uni;
257
1ad4f639
EP		 258 pn64 = atomic64_read(&key->tx_pn);
259 tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64));
260 tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64));
8ca151b5 261
1ad4f639
EP		 262 ieee80211_get_tkip_p1k_iv(key, TKIP_PN_TO_IV32(pn64),
263 p1k);
8ca151b5
JB		 264 iwl_mvm_convert_p1k(p1k, data->tkip->tx.p1k);
265
266 memcpy(data->tkip->mic_keys.tx,
267 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
268 IWL_MIC_KEY_SIZE);
269
270 rx_mic_key = data->tkip->mic_keys.rx_unicast;
271 } else {
272 tkip_sc =
273 data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc;
274 rx_p1ks = data->tkip->rx_multi;
275 rx_mic_key = data->tkip->mic_keys.rx_mcast;
276 }
277
278 /*
279 * For non-QoS this relies on the fact that both the uCode and
280 * mac80211 use TID 0 (as they need to to avoid replay attacks)
281 * for checking the IV in the frames.
282 */
283 for (i = 0; i < IWL_NUM_RSC; i++) {
284 ieee80211_get_key_rx_seq(key, i, &seq);
285 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
286 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
287 /* wrapping isn't allowed, AP must rekey */
288 if (seq.tkip.iv32 > cur_rx_iv32)
289 cur_rx_iv32 = seq.tkip.iv32;
290 }
291
292 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
293 cur_rx_iv32, p1k);
294 iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k);
295 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
296 cur_rx_iv32 + 1, p1k);
297 iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k);
298
299 memcpy(rx_mic_key,
300 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
301 IWL_MIC_KEY_SIZE);
302
303 data->use_tkip = true;
304 data->use_rsc_tsc = true;
305 break;
306 case WLAN_CIPHER_SUITE_CCMP:
307 if (sta) {
6645d5e4 308 u64 pn64;
8ca151b5
JB		 309
310 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
311 aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
312
6645d5e4
JB		 313 pn64 = atomic64_read(&key->tx_pn);
314 aes_tx_sc->pn = cpu_to_le64(pn64);
8ca151b5
JB		 315 } else {
316 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
317 }
318
319 /*
320 * For non-QoS this relies on the fact that both the uCode and
f5e28eac 321 * mac80211/our RX code use TID 0 for checking the PN.
8ca151b5 322 */
f5e28eac
JB		 323 if (sta && iwl_mvm_has_new_rx_api(mvm)) {
324 struct iwl_mvm_sta *mvmsta;
325 struct iwl_mvm_key_pn *ptk_pn;
326 const u8 *pn;
327
328 mvmsta = iwl_mvm_sta_from_mac80211(sta);
329 ptk_pn = rcu_dereference_protected(
330 mvmsta->ptk_pn[key->keyidx],
331 lockdep_is_held(&mvm->mutex));
332 if (WARN_ON(!ptk_pn))
333 break;
334
335 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
336 pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i,
337 mvm->trans->num_rx_queues);
338 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
339 ((u64)pn[4] << 8) |
340 ((u64)pn[3] << 16) |
341 ((u64)pn[2] << 24) |
342 ((u64)pn[1] << 32) |
343 ((u64)pn[0] << 40));
344 }
345 } else {
346 for (i = 0; i < IWL_NUM_RSC; i++) {
347 u8 *pn = seq.ccmp.pn;
348
349 ieee80211_get_key_rx_seq(key, i, &seq);
350 aes_sc[i].pn = cpu_to_le64((u64)pn[5] |
351 ((u64)pn[4] << 8) |
352 ((u64)pn[3] << 16) |
353 ((u64)pn[2] << 24) |
354 ((u64)pn[1] << 32) |
355 ((u64)pn[0] << 40));
356 }
8ca151b5
JB		 357 }
358 data->use_rsc_tsc = true;
359 break;
360 }
361
ac8ef0ce
EP		 362 if (data->configure_keys) {
363 mutex_lock(&mvm->mutex);
5312e54d 364 /*
ac8ef0ce
EP		 365 * The D3 firmware hardcodes the key offset 0 as the key it
366 * uses to transmit packets to the AP, i.e. the PTK.
5312e54d 367 */
ac8ef0ce
EP		 368 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
369 mvm->ptk_ivlen = key->iv_len;
370 mvm->ptk_icvlen = key->icv_len;
371 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 0);
372 } else {
373 /*
374 * firmware only supports TSC/RSC for a single key,
375 * so if there are multiple keep overwriting them
376 * with new ones -- this relies on mac80211 doing
377 * list_add_tail().
378 */
379 mvm->gtk_ivlen = key->iv_len;
380 mvm->gtk_icvlen = key->icv_len;
381 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 1);
382 }
383 mutex_unlock(&mvm->mutex);
384 data->error = ret != 0;
8ca151b5 385 }
8ca151b5
JB		 386}
387
0c546fb6
LC		 388static int iwl_mvm_send_patterns_v1(struct iwl_mvm *mvm,
389 struct cfg80211_wowlan *wowlan)
8ca151b5 390{
0c546fb6 391 struct iwl_wowlan_patterns_cmd_v1 *pattern_cmd;
8ca151b5
JB		 392 struct iwl_host_cmd cmd = {
393 .id = WOWLAN_PATTERNS,
394 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
8ca151b5
JB		 395 };
396 int i, err;
397
398 if (!wowlan->n_patterns)
399 return 0;
400
e3448967 401 cmd.len[0] = struct_size(pattern_cmd, patterns, wowlan->n_patterns);
8ca151b5
JB		 402
403 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
404 if (!pattern_cmd)
405 return -ENOMEM;
406
407 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
408
409 for (i = 0; i < wowlan->n_patterns; i++) {
410 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
411
412 memcpy(&pattern_cmd->patterns[i].mask,
413 wowlan->patterns[i].mask, mask_len);
414 memcpy(&pattern_cmd->patterns[i].pattern,
415 wowlan->patterns[i].pattern,
416 wowlan->patterns[i].pattern_len);
417 pattern_cmd->patterns[i].mask_size = mask_len;
418 pattern_cmd->patterns[i].pattern_size =
419 wowlan->patterns[i].pattern_len;
420 }
421
422 cmd.data[0] = pattern_cmd;
423 err = iwl_mvm_send_cmd(mvm, &cmd);
424 kfree(pattern_cmd);
425 return err;
426}
427
0c546fb6
LC		 428static int iwl_mvm_send_patterns(struct iwl_mvm *mvm,
429 struct cfg80211_wowlan *wowlan)
430{
431 struct iwl_wowlan_patterns_cmd *pattern_cmd;
432 struct iwl_host_cmd cmd = {
433 .id = WOWLAN_PATTERNS,
434 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
435 };
436 int i, err;
437
438 if (!wowlan->n_patterns)
439 return 0;
440
441 cmd.len[0] = sizeof(*pattern_cmd) +
442 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern_v2);
443
444 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
445 if (!pattern_cmd)
446 return -ENOMEM;
447
448 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
449
450 for (i = 0; i < wowlan->n_patterns; i++) {
451 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
452
453 pattern_cmd->patterns[i].pattern_type =
454 WOWLAN_PATTERN_TYPE_BITMASK;
455
456 memcpy(&pattern_cmd->patterns[i].u.bitmask.mask,
457 wowlan->patterns[i].mask, mask_len);
458 memcpy(&pattern_cmd->patterns[i].u.bitmask.pattern,
459 wowlan->patterns[i].pattern,
460 wowlan->patterns[i].pattern_len);
461 pattern_cmd->patterns[i].u.bitmask.mask_size = mask_len;
462 pattern_cmd->patterns[i].u.bitmask.pattern_size =
463 wowlan->patterns[i].pattern_len;
464 }
465
466 cmd.data[0] = pattern_cmd;
467 err = iwl_mvm_send_cmd(mvm, &cmd);
468 kfree(pattern_cmd);
469 return err;
470}
471
8ca151b5
JB		 472static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
473 struct ieee80211_sta *ap_sta)
474{
475 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
476 struct ieee80211_chanctx_conf *ctx;
477 u8 chains_static, chains_dynamic;
478 struct cfg80211_chan_def chandef;
479 int ret, i;
10a970df 480 struct iwl_binding_cmd_v1 binding_cmd = {};
8ca151b5 481 struct iwl_time_quota_cmd quota_cmd = {};
72cbb73e 482 struct iwl_time_quota_data *quota;
8ca151b5 483 u32 status;
10a970df
DH		 484
485 if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm)))
486 return -EINVAL;
8ca151b5
JB		 487
488 /* add back the PHY */
489 if (WARN_ON(!mvmvif->phy_ctxt))
490 return -EINVAL;
491
492 rcu_read_lock();
493 ctx = rcu_dereference(vif->chanctx_conf);
494 if (WARN_ON(!ctx)) {
495 rcu_read_unlock();
496 return -EINVAL;
497 }
498 chandef = ctx->def;
499 chains_static = ctx->rx_chains_static;
500 chains_dynamic = ctx->rx_chains_dynamic;
501 rcu_read_unlock();
502
503 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef,
504 chains_static, chains_dynamic);
505 if (ret)
506 return ret;
507
508 /* add back the MAC */
509 mvmvif->uploaded = false;
510
511 if (WARN_ON(!vif->bss_conf.assoc))
512 return -EINVAL;
bca49d9a 513
8ca151b5 514 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
8ca151b5
JB		 515 if (ret)
516 return ret;
517
518 /* add back binding - XXX refactor? */
519 binding_cmd.id_and_color =
520 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
521 mvmvif->phy_ctxt->color));
522 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
523 binding_cmd.phy =
524 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
525 mvmvif->phy_ctxt->color));
526 binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
527 mvmvif->color));
528 for (i = 1; i < MAX_MACS_IN_BINDING; i++)
529 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
530
531 status = 0;
532 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
10a970df
DH		 533 IWL_BINDING_CMD_SIZE_V1, &binding_cmd,
534 &status);
8ca151b5
JB		 535 if (ret) {
536 IWL_ERR(mvm, "Failed to add binding: %d\n", ret);
537 return ret;
538 }
539
540 if (status) {
541 IWL_ERR(mvm, "Binding command failed: %u\n", status);
542 return -EIO;
543 }
544
24afba76 545 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false, 0);
8ca151b5
JB		 546 if (ret)
547 return ret;
548 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta);
549
3dfd3a97 550 ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
8ca151b5
JB		 551 if (ret)
552 return ret;
553
554 /* and some quota */
72cbb73e
DS		 555 quota = iwl_mvm_quota_cmd_get_quota(mvm, &quota_cmd, 0);
556 quota->id_and_color =
8ca151b5
JB		 557 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
558 mvmvif->phy_ctxt->color));
72cbb73e
DS		 559 quota->quota = cpu_to_le32(IWL_MVM_MAX_QUOTA);
560 quota->max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA);
8ca151b5 561
72cbb73e
DS		 562 for (i = 1; i < MAX_BINDINGS; i++) {
563 quota = iwl_mvm_quota_cmd_get_quota(mvm, &quota_cmd, i);
564 quota->id_and_color = cpu_to_le32(FW_CTXT_INVALID);
565 }
8ca151b5 566
a1022927 567 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0,
72cbb73e 568 iwl_mvm_quota_cmd_size(mvm), &quota_cmd);
8ca151b5
JB		 569 if (ret)
570 IWL_ERR(mvm, "Failed to send quota: %d\n", ret);
571
47c8b154
JD		 572 if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm))
573 IWL_ERR(mvm, "Failed to initialize D3 LAR information\n");
574
8ca151b5
JB		 575 return 0;
576}
577
4ac6cb59
JB		 578static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm,
579 struct ieee80211_vif *vif)
580{
6d9d32b8
JB		 581 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
582 struct iwl_nonqos_seq_query_cmd query_cmd = {
583 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET),
584 .mac_id_n_color =
585 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
586 mvmvif->color)),
587 };
4ac6cb59
JB		 588 struct iwl_host_cmd cmd = {
589 .id = NON_QOS_TX_COUNTER_CMD,
a1022927 590 .flags = CMD_WANT_SKB,
4ac6cb59
JB		 591 };
592 int err;
593 u32 size;
594
3afec639
EG		 595 cmd.data[0] = &query_cmd;
596 cmd.len[0] = sizeof(query_cmd);
6d9d32b8 597
4ac6cb59
JB		 598 err = iwl_mvm_send_cmd(mvm, &cmd);
599 if (err)
600 return err;
601
65b30348 602 size = iwl_rx_packet_payload_len(cmd.resp_pkt);
6d9d32b8 603 if (size < sizeof(__le16)) {
4ac6cb59 604 err = -EINVAL;
6d9d32b8
JB		 605 } else {
606 err = le16_to_cpup((__le16 *)cmd.resp_pkt->data);
3afec639
EG		 607 /* firmware returns next, not last-used seqno */
608 err = (u16) (err - 0x10);
6d9d32b8 609 }
4ac6cb59
JB		 610
611 iwl_free_resp(&cmd);
612 return err;
613}
614
6d9d32b8
JB		 615void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif)
616{
617 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
618 struct iwl_nonqos_seq_query_cmd query_cmd = {
619 .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET),
620 .mac_id_n_color =
621 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
622 mvmvif->color)),
623 .value = cpu_to_le16(mvmvif->seqno),
624 };
625
626 /* return if called during restart, not resume from D3 */
627 if (!mvmvif->seqno_valid)
628 return;
629
630 mvmvif->seqno_valid = false;
631
a1022927 632 if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0,
6d9d32b8
JB		 633 sizeof(query_cmd), &query_cmd))
634 IWL_ERR(mvm, "failed to set non-QoS seqno\n");
635}
636
671b5820
LC		 637static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm)
638{
c7d42480 639 iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true);
671b5820 640
fcb6b92a 641 iwl_mvm_stop_device(mvm);
671b5820
LC		 642 /*
643 * Set the HW restart bit -- this is mostly true as we're
644 * going to load new firmware and reprogram that, though
645 * the reprogramming is going to be manual to avoid adding
646 * all the MACs that aren't support.
647 * We don't have to clear up everything though because the
648 * reprogramming is manual. When we resume, we'll actually
649 * go through a proper restart sequence again to switch
650 * back to the runtime firmware image.
651 */
652 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
653
9c3deeb5
LC		 654 /* the fw is reset, so all the keys are cleared */
655 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
656
671b5820
LC		 657 mvm->ptk_ivlen = 0;
658 mvm->ptk_icvlen = 0;
659 mvm->ptk_ivlen = 0;
660 mvm->ptk_icvlen = 0;
661
662 return iwl_mvm_load_d3_fw(mvm);
663}
664
671b5820
LC		 665static int
666iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm,
667 struct cfg80211_wowlan *wowlan,
c8b06a99 668 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
671b5820
LC		 669 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
670 struct ieee80211_sta *ap_sta)
8ca151b5 671{
1a95c8df 672 int ret;
9d8ce6af 673 struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta);
8ca151b5 674
c8b06a99 675 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
8ca151b5 676
c8b06a99 677 wowlan_config_cmd->is_11n_connection =
1a95c8df 678 ap_sta->ht_cap.ht_supported;
70b4c536 679 wowlan_config_cmd->flags = ENABLE_L3_FILTERING |
32795a88 680 ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING;
8ca151b5 681
4ac6cb59
JB		 682 /* Query the last used seqno and set it */
683 ret = iwl_mvm_get_last_nonqos_seq(mvm, vif);
684 if (ret < 0)
671b5820 685 return ret;
8ca151b5 686
c8b06a99 687 wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret);
671b5820 688
c8b06a99 689 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd);
8ca151b5
JB		 690
691 if (wowlan->disconnect)
c8b06a99 692 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 693 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
694 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
695 if (wowlan->magic_pkt)
c8b06a99 696 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 697 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
698 if (wowlan->gtk_rekey_failure)
c8b06a99 699 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 700 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
701 if (wowlan->eap_identity_req)
c8b06a99 702 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 703 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
704 if (wowlan->four_way_handshake)
c8b06a99 705 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 706 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
707 if (wowlan->n_patterns)
c8b06a99 708 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 709 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
710
711 if (wowlan->rfkill_release)
c8b06a99 712 wowlan_config_cmd->wakeup_filter |=
8ca151b5
JB		 713 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
714
f0c2646a
JB		 715 if (wowlan->tcp) {
716 /*
6039f3e1
JB		 717 * Set the "link change" (really "link lost") flag as well
718 * since that implies losing the TCP connection.
f0c2646a 719 */
c8b06a99 720 wowlan_config_cmd->wakeup_filter |=
f0c2646a
JB		 721 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS |
722 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE |
723 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET |
724 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
725 }
726
d3a6f7fb
EP		 727 if (wowlan->any) {
728 wowlan_config_cmd->wakeup_filter |=
729 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
730 IWL_WOWLAN_WAKEUP_LINK_CHANGE |
731 IWL_WOWLAN_WAKEUP_RX_FRAME |
732 IWL_WOWLAN_WAKEUP_BCN_FILTERING);
733 }
734
671b5820
LC		 735 return 0;
736}
f444eb10 737
a3f7ba5c
EP		 738static void
739iwl_mvm_iter_d0i3_ap_keys(struct iwl_mvm *mvm,
740 struct ieee80211_vif *vif,
741 void (*iter)(struct ieee80211_hw *hw,
742 struct ieee80211_vif *vif,
743 struct ieee80211_sta *sta,
744 struct ieee80211_key_conf *key,
745 void *data),
746 void *data)
747{
748 struct ieee80211_sta *ap_sta;
749
750 rcu_read_lock();
751
752 ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id]);
753 if (IS_ERR_OR_NULL(ap_sta))
754 goto out;
755
756 ieee80211_iter_keys_rcu(mvm->hw, vif, iter, data);
757out:
758 rcu_read_unlock();
759}
760
ac8ef0ce
EP		 761int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm,
762 struct ieee80211_vif *vif,
a3f7ba5c 763 bool d0i3,
ac8ef0ce 764 u32 cmd_flags)
671b5820
LC		 765{
766 struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {};
767 struct iwl_wowlan_tkip_params_cmd tkip_cmd = {};
8c7fd6a3
SS		 768 bool unified = fw_has_capa(&mvm->fw->ucode_capa,
769 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
671b5820 770 struct wowlan_key_data key_data = {
8c7fd6a3 771 .configure_keys = !d0i3 && !unified,
671b5820
LC		 772 .use_rsc_tsc = false,
773 .tkip = &tkip_cmd,
774 .use_tkip = false,
775 };
ac8ef0ce
EP		 776 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
777 int ret;
778
779 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
780 if (!key_data.rsc_tsc)
781 return -ENOMEM;
782
783 /*
a3f7ba5c
EP		 784 * if we have to configure keys, call ieee80211_iter_keys(),
785 * as we need non-atomic context in order to take the
786 * required locks.
787 * for the d0i3 we can't use ieee80211_iter_keys(), as
788 * taking (almost) any mutex might result in deadlock.
ac8ef0ce 789 */
a3f7ba5c
EP		 790 if (!d0i3) {
791 /*
792 * Note that currently we don't propagate cmd_flags
793 * to the iterator. In case of key_data.configure_keys,
794 * all the configured commands are SYNC, and
795 * iwl_mvm_wowlan_program_keys() will take care of
796 * locking/unlocking mvm->mutex.
797 */
798 ieee80211_iter_keys(mvm->hw, vif,
799 iwl_mvm_wowlan_program_keys,
800 &key_data);
801 } else {
802 iwl_mvm_iter_d0i3_ap_keys(mvm, vif,
803 iwl_mvm_wowlan_program_keys,
804 &key_data);
805 }
ac8ef0ce
EP		 806
807 if (key_data.error) {
808 ret = -EIO;
809 goto out;
810 }
811
812 if (key_data.use_rsc_tsc) {
813 ret = iwl_mvm_send_cmd_pdu(mvm,
814 WOWLAN_TSC_RSC_PARAM, cmd_flags,
815 sizeof(*key_data.rsc_tsc),
816 key_data.rsc_tsc);
817 if (ret)
818 goto out;
819 }
820
45c458b4
SS		 821 if (key_data.use_tkip &&
822 !fw_has_api(&mvm->fw->ucode_capa,
823 IWL_UCODE_TLV_API_TKIP_MIC_KEYS)) {
ac8ef0ce
EP		 824 ret = iwl_mvm_send_cmd_pdu(mvm,
825 WOWLAN_TKIP_PARAM,
826 cmd_flags, sizeof(tkip_cmd),
827 &tkip_cmd);
828 if (ret)
829 goto out;
830 }
831
a3f7ba5c
EP		 832 /* configure rekey data only if offloaded rekey is supported (d3) */
833 if (mvmvif->rekey_data.valid && !d0i3) {
ac8ef0ce
EP		 834 memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));
835 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
836 NL80211_KCK_LEN);
837 kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN);
838 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
839 NL80211_KEK_LEN);
840 kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN);
841 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
842
843 ret = iwl_mvm_send_cmd_pdu(mvm,
844 WOWLAN_KEK_KCK_MATERIAL, cmd_flags,
845 sizeof(kek_kck_cmd),
846 &kek_kck_cmd);
847 if (ret)
848 goto out;
849 }
3f50a690 850 ret = 0;
ac8ef0ce
EP		 851out:
852 kfree(key_data.rsc_tsc);
853 return ret;
854}
855
856static int
857iwl_mvm_wowlan_config(struct iwl_mvm *mvm,
858 struct cfg80211_wowlan *wowlan,
859 struct iwl_wowlan_config_cmd *wowlan_config_cmd,
860 struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif,
861 struct ieee80211_sta *ap_sta)
862{
671b5820 863 int ret;
23ae6128
MG		 864 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
865 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
8ca151b5 866
23ae6128
MG		 867 if (!unified_image) {
868 ret = iwl_mvm_switch_to_d3(mvm);
869 if (ret)
870 return ret;
3acc952b 871
23ae6128
MG		 872 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
873 if (ret)
874 return ret;
875 }
671b5820 876
3b37f4c9 877 if (!iwlwifi_mod_params.swcrypto) {
8ca151b5
JB		 878 /*
879 * This needs to be unlocked due to lock ordering
880 * constraints. Since we're in the suspend path
881 * that isn't really a problem though.
882 */
883 mutex_unlock(&mvm->mutex);
a3f7ba5c 884 ret = iwl_mvm_wowlan_config_key_params(mvm, vif, false,
3f50a690 885 CMD_ASYNC);
8ca151b5 886 mutex_lock(&mvm->mutex);
3f50a690
EP		 887 if (ret)
888 return ret;
8ca151b5
JB		 889 }
890
c8b06a99
EG		 891 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
892 sizeof(*wowlan_config_cmd),
893 wowlan_config_cmd);
8ca151b5 894 if (ret)
ac8ef0ce 895 return ret;
8ca151b5 896
0c546fb6
LC		 897 if (fw_has_api(&mvm->fw->ucode_capa,
898 IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE))
899 ret = iwl_mvm_send_patterns(mvm, wowlan);
900 else
901 ret = iwl_mvm_send_patterns_v1(mvm, wowlan);
8ca151b5 902 if (ret)
ac8ef0ce 903 return ret;
8ca151b5 904
debdc23b 905 return iwl_mvm_send_proto_offload(mvm, vif, false, true, 0);
671b5820
LC		 906}
907
3acc952b
LC		 908static int
909iwl_mvm_netdetect_config(struct iwl_mvm *mvm,
910 struct cfg80211_wowlan *wowlan,
911 struct cfg80211_sched_scan_request *nd_config,
912 struct ieee80211_vif *vif)
913{
c8b06a99 914 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
3acc952b 915 int ret;
23ae6128
MG		 916 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
917 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
3acc952b 918
23ae6128
MG		 919 if (!unified_image) {
920 ret = iwl_mvm_switch_to_d3(mvm);
921 if (ret)
922 return ret;
5a143db8
LC		 923 } else {
924 /* In theory, we wouldn't have to stop a running sched
925 * scan in order to start another one (for
926 * net-detect). But in practice this doesn't seem to
927 * work properly, so stop any running sched_scan now.
928 */
929 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_SCHED, true);
930 if (ret)
931 return ret;
23ae6128 932 }
3acc952b
LC		 933
934 /* rfkill release can be either for wowlan or netdetect */
935 if (wowlan->rfkill_release)
c8b06a99 936 wowlan_config_cmd.wakeup_filter |=
3acc952b
LC		 937 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
938
c8b06a99
EG		 939 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0,
940 sizeof(wowlan_config_cmd),
941 &wowlan_config_cmd);
3acc952b
LC		 942 if (ret)
943 return ret;
944
19945dfb
LC		 945 ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies,
946 IWL_MVM_SCAN_NETDETECT);
d9718da8
LC		 947 if (ret)
948 return ret;
3acc952b 949
8ed4e659 950 if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels))
d9718da8
LC		 951 return -EBUSY;
952
8ed4e659 953 /* save the sched scan matchsets... */
d9718da8
LC		 954 if (nd_config->n_match_sets) {
955 mvm->nd_match_sets = kmemdup(nd_config->match_sets,
956 sizeof(*nd_config->match_sets) *
957 nd_config->n_match_sets,
958 GFP_KERNEL);
959 if (mvm->nd_match_sets)
960 mvm->n_nd_match_sets = nd_config->n_match_sets;
961 }
962
8ed4e659
LC		 963 /* ...and the sched scan channels for later reporting */
964 mvm->nd_channels = kmemdup(nd_config->channels,
965 sizeof(*nd_config->channels) *
966 nd_config->n_channels,
967 GFP_KERNEL);
968 if (mvm->nd_channels)
969 mvm->n_nd_channels = nd_config->n_channels;
970
d9718da8
LC		 971 return 0;
972}
973
974static void iwl_mvm_free_nd(struct iwl_mvm *mvm)
975{
976 kfree(mvm->nd_match_sets);
977 mvm->nd_match_sets = NULL;
978 mvm->n_nd_match_sets = 0;
8ed4e659
LC		 979 kfree(mvm->nd_channels);
980 mvm->nd_channels = NULL;
981 mvm->n_nd_channels = 0;
3acc952b
LC		 982}
983
671b5820
LC		 984static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
985 struct cfg80211_wowlan *wowlan,
986 bool test)
987{
988 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
671b5820
LC		 989 struct ieee80211_vif *vif = NULL;
990 struct iwl_mvm_vif *mvmvif = NULL;
991 struct ieee80211_sta *ap_sta = NULL;
671b5820
LC		 992 struct iwl_d3_manager_config d3_cfg_cmd_data = {
993 /*
994 * Program the minimum sleep time to 10 seconds, as many
995 * platforms have issues processing a wakeup signal while
996 * still being in the process of suspending.
997 */
998 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
999 };
1000 struct iwl_host_cmd d3_cfg_cmd = {
1001 .id = D3_CONFIG_CMD,
1002 .flags = CMD_WANT_SKB,
1003 .data[0] = &d3_cfg_cmd_data,
1004 .len[0] = sizeof(d3_cfg_cmd_data),
1005 };
1006 int ret;
1007 int len __maybe_unused;
23ae6128
MG		 1008 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
1009 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
671b5820
LC		 1010
1011 if (!wowlan) {
1012 /*
1013 * mac80211 shouldn't get here, but for D3 test
1014 * it doesn't warrant a warning
1015 */
1016 WARN_ON(!test);
1017 return -EINVAL;
1018 }
1019
1020 mutex_lock(&mvm->mutex);
1021
7f549e2c
LC		 1022 vif = iwl_mvm_get_bss_vif(mvm);
1023 if (IS_ERR_OR_NULL(vif)) {
671b5820
LC		 1024 ret = 1;
1025 goto out_noreset;
1026 }
1027
671b5820
LC		 1028 mvmvif = iwl_mvm_vif_from_mac80211(vif);
1029
0ae98812 1030 if (mvmvif->ap_sta_id == IWL_MVM_INVALID_STA) {
3acc952b 1031 /* if we're not associated, this must be netdetect */
566f165d 1032 if (!wowlan->nd_config) {
3acc952b
LC		 1033 ret = 1;
1034 goto out_noreset;
1035 }
1036
1037 ret = iwl_mvm_netdetect_config(
566f165d 1038 mvm, wowlan, wowlan->nd_config, vif);
3acc952b
LC		 1039 if (ret)
1040 goto out;
2021a89d
LC		 1041
1042 mvm->net_detect = true;
3acc952b 1043 } else {
c8b06a99 1044 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
3acc952b 1045
1e4d19ca
LC		 1046 ap_sta = rcu_dereference_protected(
1047 mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
1048 lockdep_is_held(&mvm->mutex));
1049 if (IS_ERR_OR_NULL(ap_sta)) {
1050 ret = -EINVAL;
1051 goto out_noreset;
1052 }
671b5820 1053
1e4d19ca
LC		 1054 ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1055 vif, mvmvif, ap_sta);
1056 if (ret)
1057 goto out_noreset;
1e4d19ca
LC		 1058 ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd,
1059 vif, mvmvif, ap_sta);
1060 if (ret)
3c2f3b20 1061 goto out;
2021a89d
LC		 1062
1063 mvm->net_detect = false;
1e4d19ca 1064 }
f0c2646a 1065
c1cb92fc 1066 ret = iwl_mvm_power_update_device(mvm);
64b928c4
AB		 1067 if (ret)
1068 goto out;
1069
999609f1 1070 ret = iwl_mvm_power_update_mac(mvm);
ee1e8422
AB		 1071 if (ret)
1072 goto out;
1073
b0114714
JB		 1074#ifdef CONFIG_IWLWIFI_DEBUGFS
1075 if (mvm->d3_wake_sysassert)
1076 d3_cfg_cmd_data.wakeup_flags |=
1077 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR);
1078#endif
1079
e8a583f9 1080 /*
c040fe83
SM		 1081 * Prior to 9000 device family the driver needs to stop the dbg
1082 * recording before entering D3. In later devices the FW stops the
1083 * recording automatically.
e8a583f9 1084 */
c040fe83 1085 if (mvm->trans->cfg->device_family < IWL_DEVICE_FAMILY_9000)
6c7f7087 1086 iwl_fw_dbg_stop_recording(mvm->trans, NULL);
e8a583f9 1087
8ca151b5 1088 /* must be last -- this switches firmware state */
debff618 1089 ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
8ca151b5
JB		 1090 if (ret)
1091 goto out;
debff618 1092#ifdef CONFIG_IWLWIFI_DEBUGFS
65b30348
JB		 1093 len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt);
1094 if (len >= sizeof(u32)) {
debff618
JB		 1095 mvm->d3_test_pme_ptr =
1096 le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data);
debff618
JB		 1097 }
1098#endif
1099 iwl_free_resp(&d3_cfg_cmd);
8ca151b5
JB		 1100
1101 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1102
23ae6128 1103 iwl_trans_d3_suspend(mvm->trans, test, !unified_image);
8ca151b5 1104 out:
d9718da8 1105 if (ret < 0) {
d9718da8 1106 iwl_mvm_free_nd(mvm);
bac453ab
LC		 1107
1108 if (!unified_image) {
1109 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
3b37f4c9
JB		 1110 if (mvm->fw_restart > 0) {
1111 mvm->fw_restart--;
bac453ab
LC		 1112 ieee80211_restart_hw(mvm->hw);
1113 }
1114 }
d9718da8 1115 }
b70ab727 1116 out_noreset:
8ca151b5
JB		 1117 mutex_unlock(&mvm->mutex);
1118
1119 return ret;
1120}
1121
6735943f
EP		 1122static int iwl_mvm_enter_d0i3_sync(struct iwl_mvm *mvm)
1123{
1124 struct iwl_notification_wait wait_d3;
6eb031d2 1125 static const u16 d3_notif[] = { D3_CONFIG_CMD };
6735943f
EP		 1126 int ret;
1127
1128 iwl_init_notification_wait(&mvm->notif_wait, &wait_d3,
1129 d3_notif, ARRAY_SIZE(d3_notif),
1130 NULL, NULL);
1131
1132 ret = iwl_mvm_enter_d0i3(mvm->hw->priv);
1133 if (ret)
1134 goto remove_notif;
1135
1136 ret = iwl_wait_notification(&mvm->notif_wait, &wait_d3, HZ);
1137 WARN_ON_ONCE(ret);
1138 return ret;
1139
1140remove_notif:
1141 iwl_remove_notification(&mvm->notif_wait, &wait_d3);
1142 return ret;
1143}
1144
debff618
JB		 1145int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
1146{
d15a747f 1147 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b7282643 1148 struct iwl_trans *trans = mvm->trans;
c43fe907
EP		 1149 int ret;
1150
cf8c3cff
LC		 1151 /* make sure the d0i3 exit work is not pending */
1152 flush_work(&mvm->d0i3_exit_work);
7d9d0d56 1153 iwl_mvm_pause_tcm(mvm, true);
cf8c3cff 1154
7f8ae00f
HD		 1155 iwl_fw_runtime_suspend(&mvm->fwrt);
1156
b7282643 1157 ret = iwl_trans_suspend(trans);
c43fe907
EP		 1158 if (ret)
1159 return ret;
d15a747f 1160
b7282643
LC		 1161 if (wowlan->any) {
1162 trans->system_pm_mode = IWL_PLAT_PM_MODE_D0I3;
1163
1164 if (iwl_mvm_enter_d0i3_on_suspend(mvm)) {
c43fe907 1165 ret = iwl_mvm_enter_d0i3_sync(mvm);
6735943f
EP		 1166
1167 if (ret)
1168 return ret;
1169 }
1170
d15a747f
EP		 1171 mutex_lock(&mvm->d0i3_suspend_mutex);
1172 __set_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
1173 mutex_unlock(&mvm->d0i3_suspend_mutex);
6dfb36c8 1174
23ae6128 1175 iwl_trans_d3_suspend(trans, false, false);
6dfb36c8 1176
d15a747f
EP		 1177 return 0;
1178 }
1179
b7282643
LC		 1180 trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
1181
debff618
JB		 1182 return __iwl_mvm_suspend(hw, wowlan, false);
1183}
1184
6d9d32b8
JB		 1185/* converted data from the different status responses */
1186struct iwl_wowlan_status_data {
1187 u16 pattern_number;
1188 u16 qos_seq_ctr[8];
1189 u32 wakeup_reasons;
1190 u32 wake_packet_length;
1191 u32 wake_packet_bufsize;
1192 const u8 *wake_packet;
1193};
1194
7abc4632
JB		 1195static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm,
1196 struct ieee80211_vif *vif,
6d9d32b8 1197 struct iwl_wowlan_status_data *status)
9b26b500 1198{
7abc4632 1199 struct sk_buff *pkt = NULL;
9b26b500
JB		 1200 struct cfg80211_wowlan_wakeup wakeup = {
1201 .pattern_idx = -1,
1202 };
1203 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
6d9d32b8 1204 u32 reasons = status->wakeup_reasons;
9b26b500
JB		 1205
1206 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1207 wakeup_report = NULL;
1208 goto report;
1209 }
1210
06ae2ad4
DB		 1211 pm_wakeup_event(mvm->dev, 0);
1212
f444eb10 1213 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
9b26b500 1214 wakeup.magic_pkt = true;
9b26b500 1215
f444eb10 1216 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
9b26b500 1217 wakeup.pattern_idx =
6d9d32b8 1218 status->pattern_number;
9b26b500
JB		 1219
1220 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1221 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH))
1222 wakeup.disconnect = true;
1223
f444eb10 1224 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
9b26b500 1225 wakeup.gtk_rekey_failure = true;
9b26b500 1226
f444eb10 1227 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
9b26b500 1228 wakeup.rfkill_release = true;
9b26b500 1229
f444eb10 1230 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
9b26b500 1231 wakeup.eap_identity_req = true;
9b26b500 1232
f444eb10 1233 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
9b26b500 1234 wakeup.four_way_handshake = true;
9b26b500 1235
f0c2646a
JB		 1236 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1237 wakeup.tcp_connlost = true;
1238
1239 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1240 wakeup.tcp_nomoretokens = true;
1241
1242 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1243 wakeup.tcp_match = true;
1244
9b26b500 1245 if (status->wake_packet_bufsize) {
6d9d32b8
JB		 1246 int pktsize = status->wake_packet_bufsize;
1247 int pktlen = status->wake_packet_length;
f444eb10
JB		 1248 const u8 *pktdata = status->wake_packet;
1249 struct ieee80211_hdr *hdr = (void *)pktdata;
1250 int truncated = pktlen - pktsize;
1251
1252 /* this would be a firmware bug */
1253 if (WARN_ON_ONCE(truncated < 0))
1254 truncated = 0;
1255
1256 if (ieee80211_is_data(hdr->frame_control)) {
1257 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1258 int ivlen = 0, icvlen = 4; /* also FCS */
9b26b500 1259
9b26b500
JB		 1260 pkt = alloc_skb(pktsize, GFP_KERNEL);
1261 if (!pkt)
1262 goto report;
f444eb10 1263
59ae1d12 1264 skb_put_data(pkt, pktdata, hdrlen);
f444eb10
JB		 1265 pktdata += hdrlen;
1266 pktsize -= hdrlen;
1267
1268 if (ieee80211_has_protected(hdr->frame_control)) {
7abc4632
JB		 1269 /*
1270 * This is unlocked and using gtk_i(c)vlen,
1271 * but since everything is under RTNL still
1272 * that's not really a problem - changing
1273 * it would be difficult.
1274 */
f444eb10
JB		 1275 if (is_multicast_ether_addr(hdr->addr1)) {
1276 ivlen = mvm->gtk_ivlen;
1277 icvlen += mvm->gtk_icvlen;
1278 } else {
1279 ivlen = mvm->ptk_ivlen;
1280 icvlen += mvm->ptk_icvlen;
1281 }
1282 }
1283
1284 /* if truncated, FCS/ICV is (partially) gone */
1285 if (truncated >= icvlen) {
1286 icvlen = 0;
1287 truncated -= icvlen;
1288 } else {
1289 icvlen -= truncated;
1290 truncated = 0;
1291 }
1292
1293 pktsize -= ivlen + icvlen;
1294 pktdata += ivlen;
1295
59ae1d12 1296 skb_put_data(pkt, pktdata, pktsize);
f444eb10 1297
9b26b500
JB		 1298 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1299 goto report;
1300 wakeup.packet = pkt->data;
1301 wakeup.packet_present_len = pkt->len;
f444eb10 1302 wakeup.packet_len = pkt->len - truncated;
9b26b500
JB		 1303 wakeup.packet_80211 = false;
1304 } else {
f444eb10
JB		 1305 int fcslen = 4;
1306
1307 if (truncated >= 4) {
1308 truncated -= 4;
1309 fcslen = 0;
1310 } else {
1311 fcslen -= truncated;
1312 truncated = 0;
1313 }
1314 pktsize -= fcslen;
9b26b500
JB		 1315 wakeup.packet = status->wake_packet;
1316 wakeup.packet_present_len = pktsize;
f444eb10 1317 wakeup.packet_len = pktlen - truncated;
9b26b500
JB		 1318 wakeup.packet_80211 = true;
1319 }
1320 }
1321
1322 report:
1323 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1324 kfree_skb(pkt);
7abc4632 1325}
9b26b500 1326
6d9d32b8
JB		 1327static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc,
1328 struct ieee80211_key_seq *seq)
1329{
1330 u64 pn;
1331
1332 pn = le64_to_cpu(sc->pn);
1333 seq->ccmp.pn[0] = pn >> 40;
1334 seq->ccmp.pn[1] = pn >> 32;
1335 seq->ccmp.pn[2] = pn >> 24;
1336 seq->ccmp.pn[3] = pn >> 16;
1337 seq->ccmp.pn[4] = pn >> 8;
1338 seq->ccmp.pn[5] = pn;
1339}
1340
1341static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc,
1342 struct ieee80211_key_seq *seq)
1343{
1344 seq->tkip.iv32 = le32_to_cpu(sc->iv32);
1345 seq->tkip.iv16 = le16_to_cpu(sc->iv16);
1346}
1347
f5e28eac
JB		 1348static void iwl_mvm_set_aes_rx_seq(struct iwl_mvm *mvm, struct aes_sc *scs,
1349 struct ieee80211_sta *sta,
6d9d32b8
JB		 1350 struct ieee80211_key_conf *key)
1351{
1352 int tid;
1353
1354 BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS);
1355
f5e28eac
JB		 1356 if (sta && iwl_mvm_has_new_rx_api(mvm)) {
1357 struct iwl_mvm_sta *mvmsta;
1358 struct iwl_mvm_key_pn *ptk_pn;
6d9d32b8 1359
f5e28eac
JB		 1360 mvmsta = iwl_mvm_sta_from_mac80211(sta);
1361
1362 ptk_pn = rcu_dereference_protected(mvmsta->ptk_pn[key->keyidx],
1363 lockdep_is_held(&mvm->mutex));
1364 if (WARN_ON(!ptk_pn))
1365 return;
1366
1367 for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) {
1368 struct ieee80211_key_seq seq = {};
1369 int i;
1370
1371 iwl_mvm_aes_sc_to_seq(&scs[tid], &seq);
1372 ieee80211_set_key_rx_seq(key, tid, &seq);
1373 for (i = 1; i < mvm->trans->num_rx_queues; i++)
1374 memcpy(ptk_pn->q[i].pn[tid],
1375 seq.ccmp.pn, IEEE80211_CCMP_PN_LEN);
1376 }
1377 } else {
1378 for (tid = 0; tid < IWL_NUM_RSC; tid++) {
1379 struct ieee80211_key_seq seq = {};
1380
1381 iwl_mvm_aes_sc_to_seq(&scs[tid], &seq);
1382 ieee80211_set_key_rx_seq(key, tid, &seq);
1383 }
6d9d32b8
JB		 1384 }
1385}
1386
1387static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc *scs,
1388 struct ieee80211_key_conf *key)
1389{
1390 int tid;
1391
1392 BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS);
1393
1394 for (tid = 0; tid < IWL_NUM_RSC; tid++) {
1395 struct ieee80211_key_seq seq = {};
1396
1397 iwl_mvm_tkip_sc_to_seq(&scs[tid], &seq);
1398 ieee80211_set_key_rx_seq(key, tid, &seq);
1399 }
1400}
1401
f5e28eac
JB		 1402static void iwl_mvm_set_key_rx_seq(struct iwl_mvm *mvm,
1403 struct ieee80211_key_conf *key,
3afec639 1404 struct iwl_wowlan_status *status)
6d9d32b8 1405{
2afa6a73 1406 union iwl_all_tsc_rsc *rsc = &status->gtk[0].rsc.all_tsc_rsc;
6d9d32b8
JB		 1407
1408 switch (key->cipher) {
1409 case WLAN_CIPHER_SUITE_CCMP:
f5e28eac 1410 iwl_mvm_set_aes_rx_seq(mvm, rsc->aes.multicast_rsc, NULL, key);
6d9d32b8
JB		 1411 break;
1412 case WLAN_CIPHER_SUITE_TKIP:
1413 iwl_mvm_set_tkip_rx_seq(rsc->tkip.multicast_rsc, key);
1414 break;
1415 default:
1416 WARN_ON(1);
1417 }
1418}
1419
1420struct iwl_mvm_d3_gtk_iter_data {
f5e28eac 1421 struct iwl_mvm *mvm;
3afec639 1422 struct iwl_wowlan_status *status;
6d9d32b8
JB		 1423 void *last_gtk;
1424 u32 cipher;
1425 bool find_phase, unhandled_cipher;
1426 int num_keys;
1427};
1428
59fd4bf6 1429static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw,
6d9d32b8
JB		 1430 struct ieee80211_vif *vif,
1431 struct ieee80211_sta *sta,
1432 struct ieee80211_key_conf *key,
1433 void *_data)
1434{
1435 struct iwl_mvm_d3_gtk_iter_data *data = _data;
1436
1437 if (data->unhandled_cipher)
1438 return;
1439
1440 switch (key->cipher) {
1441 case WLAN_CIPHER_SUITE_WEP40:
1442 case WLAN_CIPHER_SUITE_WEP104:
1443 /* ignore WEP completely, nothing to do */
1444 return;
1445 case WLAN_CIPHER_SUITE_CCMP:
1446 case WLAN_CIPHER_SUITE_TKIP:
1447 /* we support these */
1448 break;
1449 default:
1450 /* everything else (even CMAC for MFP) - disconnect from AP */
1451 data->unhandled_cipher = true;
1452 return;
1453 }
1454
1455 data->num_keys++;
1456
1457 /*
1458 * pairwise key - update sequence counters only;
1459 * note that this assumes no TDLS sessions are active
1460 */
1461 if (sta) {
1462 struct ieee80211_key_seq seq = {};
2afa6a73
LC		 1463 union iwl_all_tsc_rsc *sc =
1464 &data->status->gtk[0].rsc.all_tsc_rsc;
6d9d32b8
JB		 1465
1466 if (data->find_phase)
1467 return;
1468
1469 switch (key->cipher) {
1470 case WLAN_CIPHER_SUITE_CCMP:
f5e28eac
JB		 1471 iwl_mvm_set_aes_rx_seq(data->mvm, sc->aes.unicast_rsc,
1472 sta, key);
6645d5e4 1473 atomic64_set(&key->tx_pn, le64_to_cpu(sc->aes.tsc.pn));
6d9d32b8
JB		 1474 break;
1475 case WLAN_CIPHER_SUITE_TKIP:
1476 iwl_mvm_tkip_sc_to_seq(&sc->tkip.tsc, &seq);
1477 iwl_mvm_set_tkip_rx_seq(sc->tkip.unicast_rsc, key);
1ad4f639
EP		 1478 atomic64_set(&key->tx_pn,
1479 (u64)seq.tkip.iv16 |
1480 ((u64)seq.tkip.iv32 << 16));
6d9d32b8
JB		 1481 break;
1482 }
6d9d32b8
JB		 1483
1484 /* that's it for this key */
1485 return;
1486 }
1487
1488 if (data->find_phase) {
1489 data->last_gtk = key;
1490 data->cipher = key->cipher;
1491 return;
1492 }
1493
1494 if (data->status->num_of_gtk_rekeys)
1495 ieee80211_remove_key(key);
1496 else if (data->last_gtk == key)
f5e28eac 1497 iwl_mvm_set_key_rx_seq(data->mvm, key, data->status);
6d9d32b8
JB		 1498}
1499
1500static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm,
1501 struct ieee80211_vif *vif,
3afec639 1502 struct iwl_wowlan_status *status)
6d9d32b8
JB		 1503{
1504 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
1505 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
f5e28eac 1506 .mvm = mvm,
6d9d32b8
JB		 1507 .status = status,
1508 };
431591cc
EP		 1509 u32 disconnection_reasons =
1510 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1511 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH;
6d9d32b8
JB		 1512
1513 if (!status || !vif->bss_conf.bssid)
1514 return false;
1515
431591cc
EP		 1516 if (le32_to_cpu(status->wakeup_reasons) & disconnection_reasons)
1517 return false;
1518
6d9d32b8
JB		 1519 /* find last GTK that we used initially, if any */
1520 gtkdata.find_phase = true;
1521 ieee80211_iter_keys(mvm->hw, vif,
59fd4bf6 1522 iwl_mvm_d3_update_keys, &gtkdata);
6d9d32b8
JB		 1523 /* not trying to keep connections with MFP/unhandled ciphers */
1524 if (gtkdata.unhandled_cipher)
1525 return false;
1526 if (!gtkdata.num_keys)
cfa88893 1527 goto out;
6d9d32b8
JB		 1528 if (!gtkdata.last_gtk)
1529 return false;
1530
1531 /*
1532 * invalidate all other GTKs that might still exist and update
1533 * the one that we used
1534 */
1535 gtkdata.find_phase = false;
1536 ieee80211_iter_keys(mvm->hw, vif,
59fd4bf6 1537 iwl_mvm_d3_update_keys, &gtkdata);
6d9d32b8
JB		 1538
1539 if (status->num_of_gtk_rekeys) {
1540 struct ieee80211_key_conf *key;
1541 struct {
1542 struct ieee80211_key_conf conf;
1543 u8 key[32];
1544 } conf = {
1545 .conf.cipher = gtkdata.cipher,
2afa6a73
LC		 1546 .conf.keyidx =
1547 iwlmvm_wowlan_gtk_idx(&status->gtk[0]),
6d9d32b8 1548 };
11a0513c 1549 __be64 replay_ctr;
6d9d32b8
JB		 1550
1551 switch (gtkdata.cipher) {
1552 case WLAN_CIPHER_SUITE_CCMP:
1553 conf.conf.keylen = WLAN_KEY_LEN_CCMP;
2afa6a73 1554 memcpy(conf.conf.key, status->gtk[0].key,
6d9d32b8
JB		 1555 WLAN_KEY_LEN_CCMP);
1556 break;
1557 case WLAN_CIPHER_SUITE_TKIP:
1558 conf.conf.keylen = WLAN_KEY_LEN_TKIP;
2afa6a73 1559 memcpy(conf.conf.key, status->gtk[0].key, 16);
6d9d32b8
JB		 1560 /* leave TX MIC key zeroed, we don't use it anyway */
1561 memcpy(conf.conf.key +
1562 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY,
2afa6a73 1563 status->gtk[0].tkip_mic_key, 8);
6d9d32b8
JB		 1564 break;
1565 }
1566
1567 key = ieee80211_gtk_rekey_add(vif, &conf.conf);
1568 if (IS_ERR(key))
1569 return false;
f5e28eac 1570 iwl_mvm_set_key_rx_seq(mvm, key, status);
6d9d32b8 1571
2afa6a73
LC		 1572 replay_ctr =
1573 cpu_to_be64(le64_to_cpu(status->replay_ctr));
11a0513c 1574
6d9d32b8
JB		 1575 ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid,
1576 (void *)&replay_ctr, GFP_KERNEL);
1577 }
1578
cfa88893 1579out:
6d9d32b8
JB		 1580 mvmvif->seqno_valid = true;
1581 /* +0x10 because the set API expects next-to-use, not last-used */
1582 mvmvif->seqno = le16_to_cpu(status->non_qos_seq_ctr) + 0x10;
1583
1584 return true;
1585}
1586
2afa6a73
LC		 1587struct iwl_wowlan_status *iwl_mvm_send_wowlan_get_status(struct iwl_mvm *mvm)
1588{
1589 struct iwl_wowlan_status *v7, *status;
1590 struct iwl_host_cmd cmd = {
1591 .id = WOWLAN_GET_STATUSES,
1592 .flags = CMD_WANT_SKB,
1593 };
1594 int ret, len, status_size;
1595
1596 lockdep_assert_held(&mvm->mutex);
1597
1598 ret = iwl_mvm_send_cmd(mvm, &cmd);
1599 if (ret) {
1600 IWL_ERR(mvm, "failed to query wakeup status (%d)\n", ret);
1601 return ERR_PTR(ret);
1602 }
1603
1604 if (!fw_has_api(&mvm->fw->ucode_capa,
1605 IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL)) {
1606 struct iwl_wowlan_status_v6 *v6 = (void *)cmd.resp_pkt->data;
1607 int data_size;
1608
1609 status_size = sizeof(*v6);
1610 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
1611
1612 if (len < status_size) {
1613 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1614 status = ERR_PTR(-EIO);
1615 goto out_free_resp;
1616 }
1617
1618 data_size = ALIGN(le32_to_cpu(v6->wake_packet_bufsize), 4);
1619
1620 if (len != (status_size + data_size)) {
1621 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1622 status = ERR_PTR(-EIO);
1623 goto out_free_resp;
1624 }
1625
1626 status = kzalloc(sizeof(*status) + data_size, GFP_KERNEL);
1627 if (!status)
1628 goto out_free_resp;
1629
1630 BUILD_BUG_ON(sizeof(v6->gtk.decrypt_key) >
1631 sizeof(status->gtk[0].key));
1632 BUILD_BUG_ON(sizeof(v6->gtk.tkip_mic_key) >
1633 sizeof(status->gtk[0].tkip_mic_key));
1634
1635 /* copy GTK info to the right place */
1636 memcpy(status->gtk[0].key, v6->gtk.decrypt_key,
1637 sizeof(v6->gtk.decrypt_key));
1638 memcpy(status->gtk[0].tkip_mic_key, v6->gtk.tkip_mic_key,
1639 sizeof(v6->gtk.tkip_mic_key));
1640 memcpy(&status->gtk[0].rsc, &v6->gtk.rsc,
1641 sizeof(status->gtk[0].rsc));
1642
1643 /* hardcode the key length to 16 since v6 only supports 16 */
1644 status->gtk[0].key_len = 16;
1645
1646 /*
1647 * The key index only uses 2 bits (values 0 to 3) and
1648 * we always set bit 7 which means this is the
1649 * currently used key.
1650 */
1651 status->gtk[0].key_flags = v6->gtk.key_index | BIT(7);
1652
1653 status->replay_ctr = v6->replay_ctr;
1654
1655 /* everything starting from pattern_number is identical */
1656 memcpy(&status->pattern_number, &v6->pattern_number,
1657 offsetof(struct iwl_wowlan_status, wake_packet) -
1658 offsetof(struct iwl_wowlan_status, pattern_number) +
1659 data_size);
1660
1661 goto out_free_resp;
1662 }
1663
1664 v7 = (void *)cmd.resp_pkt->data;
1665 status_size = sizeof(*v7);
1666 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
1667
1668 if (len < status_size) {
1669 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1670 status = ERR_PTR(-EIO);
1671 goto out_free_resp;
1672 }
1673
1674 if (len != (status_size +
1675 ALIGN(le32_to_cpu(v7->wake_packet_bufsize), 4))) {
1676 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1677 status = ERR_PTR(-EIO);
1678 goto out_free_resp;
1679 }
1680
1681 status = kmemdup(v7, len, GFP_KERNEL);
1682
1683out_free_resp:
1684 iwl_free_resp(&cmd);
1685 return status;
1686}
1687
ec12f457 1688static struct iwl_wowlan_status *
f57d104f 1689iwl_mvm_get_wakeup_status(struct iwl_mvm *mvm)
7abc4632 1690{
2afa6a73 1691 int ret;
7abc4632 1692
7abc4632 1693 /* only for tracing for now */
a1022927 1694 ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, 0, 0, NULL);
7abc4632
JB		 1695 if (ret)
1696 IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret);
1697
2afa6a73 1698 return iwl_mvm_send_wowlan_get_status(mvm);
ec12f457
LC		 1699}
1700
1701/* releases the MVM mutex */
1702static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
1703 struct ieee80211_vif *vif)
1704{
1705 struct iwl_wowlan_status_data status;
1706 struct iwl_wowlan_status *fw_status;
1707 int i;
1708 bool keep;
ec12f457
LC		 1709 struct iwl_mvm_sta *mvm_ap_sta;
1710
f57d104f 1711 fw_status = iwl_mvm_get_wakeup_status(mvm);
ec12f457
LC		 1712 if (IS_ERR_OR_NULL(fw_status))
1713 goto out_unlock;
3afec639
EG		 1714
1715 status.pattern_number = le16_to_cpu(fw_status->pattern_number);
1716 for (i = 0; i < 8; i++)
1717 status.qos_seq_ctr[i] =
1718 le16_to_cpu(fw_status->qos_seq_ctr[i]);
1719 status.wakeup_reasons = le32_to_cpu(fw_status->wakeup_reasons);
1720 status.wake_packet_length =
1721 le32_to_cpu(fw_status->wake_packet_length);
1722 status.wake_packet_bufsize =
1723 le32_to_cpu(fw_status->wake_packet_bufsize);
1724 status.wake_packet = fw_status->wake_packet;
7abc4632 1725
6d9d32b8 1726 /* still at hard-coded place 0 for D3 image */
13303c0f
SS		 1727 mvm_ap_sta = iwl_mvm_sta_from_staid_protected(mvm, 0);
1728 if (!mvm_ap_sta)
ec12f457 1729 goto out_free;
6d9d32b8 1730
6d9d32b8
JB		 1731 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
1732 u16 seq = status.qos_seq_ctr[i];
1733 /* firmware stores last-used value, we store next value */
1734 seq += 0x10;
1735 mvm_ap_sta->tid_data[i].seq_number = seq;
1736 }
1737
7abc4632
JB		 1738 /* now we have all the data we need, unlock to avoid mac80211 issues */
1739 mutex_unlock(&mvm->mutex);
1740
6d9d32b8
JB		 1741 iwl_mvm_report_wakeup_reasons(mvm, vif, &status);
1742
3afec639 1743 keep = iwl_mvm_setup_connection_keep(mvm, vif, fw_status);
6d9d32b8 1744
ec12f457 1745 kfree(fw_status);
6d9d32b8 1746 return keep;
7abc4632 1747
ec12f457
LC		 1748out_free:
1749 kfree(fw_status);
1750out_unlock:
7abc4632 1751 mutex_unlock(&mvm->mutex);
6d9d32b8 1752 return false;
9b26b500
JB		 1753}
1754
a3f7ba5c
EP		 1755void iwl_mvm_d0i3_update_keys(struct iwl_mvm *mvm,
1756 struct ieee80211_vif *vif,
1757 struct iwl_wowlan_status *status)
1758{
1759 struct iwl_mvm_d3_gtk_iter_data gtkdata = {
0eb1c968 1760 .mvm = mvm,
a3f7ba5c
EP		 1761 .status = status,
1762 };
1763
1764 /*
1765 * rekey handling requires taking locks that can't be taken now.
1766 * however, d0i3 doesn't offload rekey, so we're fine.
1767 */
1768 if (WARN_ON_ONCE(status->num_of_gtk_rekeys))
1769 return;
1770
1771 /* find last GTK that we used initially, if any */
1772 gtkdata.find_phase = true;
1773 iwl_mvm_iter_d0i3_ap_keys(mvm, vif, iwl_mvm_d3_update_keys, &gtkdata);
1774
1775 gtkdata.find_phase = false;
1776 iwl_mvm_iter_d0i3_ap_keys(mvm, vif, iwl_mvm_d3_update_keys, &gtkdata);
1777}
1778
e4fe5d4b
IP		 1779#define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \
1780 IWL_SCAN_MAX_PROFILES)
1781
8ed4e659
LC		 1782struct iwl_mvm_nd_query_results {
1783 u32 matched_profiles;
e4fe5d4b 1784 u8 matches[ND_QUERY_BUF_LEN];
8ed4e659
LC		 1785};
1786
1787static int
1788iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
1789 struct iwl_mvm_nd_query_results *results)
b04998f3
LC		 1790{
1791 struct iwl_scan_offload_profiles_query *query;
1792 struct iwl_host_cmd cmd = {
1793 .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD,
1794 .flags = CMD_WANT_SKB,
1795 };
1796 int ret, len;
e4fe5d4b 1797 size_t query_len, matches_len;
b04998f3
LC		 1798
1799 ret = iwl_mvm_send_cmd(mvm, &cmd);
1800 if (ret) {
1801 IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret);
8ed4e659 1802 return ret;
b04998f3
LC		 1803 }
1804
e4fe5d4b
IP		 1805 if (fw_has_api(&mvm->fw->ucode_capa,
1806 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
1807 query_len = sizeof(struct iwl_scan_offload_profiles_query);
1808 matches_len = sizeof(struct iwl_scan_offload_profile_match) *
1809 IWL_SCAN_MAX_PROFILES;
1810 } else {
1811 query_len = sizeof(struct iwl_scan_offload_profiles_query_v1);
1812 matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) *
1813 IWL_SCAN_MAX_PROFILES;
1814 }
1815
b04998f3 1816 len = iwl_rx_packet_payload_len(cmd.resp_pkt);
e4fe5d4b 1817 if (len < query_len) {
b04998f3 1818 IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");
8ed4e659 1819 ret = -EIO;
b04998f3
LC		 1820 goto out_free_resp;
1821 }
1822
1823 query = (void *)cmd.resp_pkt->data;
1824
8ed4e659 1825 results->matched_profiles = le32_to_cpu(query->matched_profiles);
e4fe5d4b 1826 memcpy(results->matches, query->matches, matches_len);
b04998f3 1827
6bbd5521 1828#ifdef CONFIG_IWLWIFI_DEBUGFS
484b3d13
LC		 1829 mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done);
1830#endif
1831
b04998f3
LC		 1832out_free_resp:
1833 iwl_free_resp(&cmd);
1834 return ret;
1835}
1836
e4fe5d4b
IP		 1837static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm,
1838 struct iwl_mvm_nd_query_results *query,
1839 int idx)
1840{
1841 int n_chans = 0, i;
1842
1843 if (fw_has_api(&mvm->fw->ucode_capa,
1844 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
1845 struct iwl_scan_offload_profile_match *matches =
1846 (struct iwl_scan_offload_profile_match *)query->matches;
1847
1848 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++)
1849 n_chans += hweight8(matches[idx].matching_channels[i]);
1850 } else {
1851 struct iwl_scan_offload_profile_match_v1 *matches =
1852 (struct iwl_scan_offload_profile_match_v1 *)query->matches;
1853
1854 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++)
1855 n_chans += hweight8(matches[idx].matching_channels[i]);
1856 }
1857
1858 return n_chans;
1859}
1860
1861static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm,
1862 struct iwl_mvm_nd_query_results *query,
1863 struct cfg80211_wowlan_nd_match *match,
1864 int idx)
1865{
1866 int i;
1867
1868 if (fw_has_api(&mvm->fw->ucode_capa,
1869 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
1870 struct iwl_scan_offload_profile_match *matches =
1871 (struct iwl_scan_offload_profile_match *)query->matches;
1872
1873 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++)
1874 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
1875 match->channels[match->n_channels++] =
1876 mvm->nd_channels[i]->center_freq;
1877 } else {
1878 struct iwl_scan_offload_profile_match_v1 *matches =
1879 (struct iwl_scan_offload_profile_match_v1 *)query->matches;
1880
1881 for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++)
1882 if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
1883 match->channels[match->n_channels++] =
1884 mvm->nd_channels[i]->center_freq;
1885 }
1886}
1887
2021a89d
LC		 1888static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
1889 struct ieee80211_vif *vif)
1890{
d9718da8 1891 struct cfg80211_wowlan_nd_info *net_detect = NULL;
2021a89d
LC		 1892 struct cfg80211_wowlan_wakeup wakeup = {
1893 .pattern_idx = -1,
1894 };
1895 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
8ed4e659 1896 struct iwl_mvm_nd_query_results query;
2021a89d 1897 struct iwl_wowlan_status *fw_status;
d9718da8 1898 unsigned long matched_profiles;
2021a89d 1899 u32 reasons = 0;
e4fe5d4b 1900 int i, n_matches, ret;
2021a89d 1901
f57d104f 1902 fw_status = iwl_mvm_get_wakeup_status(mvm);
2fc863a5 1903 if (!IS_ERR_OR_NULL(fw_status)) {
2021a89d 1904 reasons = le32_to_cpu(fw_status->wakeup_reasons);
2fc863a5
HD		 1905 kfree(fw_status);
1906 }
2021a89d
LC		 1907
1908 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
1909 wakeup.rfkill_release = true;
1910
b04998f3
LC		 1911 if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS)
1912 goto out;
1913
8ed4e659
LC		 1914 ret = iwl_mvm_netdetect_query_results(mvm, &query);
1915 if (ret || !query.matched_profiles) {
2021a89d 1916 wakeup_report = NULL;
b04998f3 1917 goto out;
2021a89d
LC		 1918 }
1919
8ed4e659 1920 matched_profiles = query.matched_profiles;
d9718da8
LC		 1921 if (mvm->n_nd_match_sets) {
1922 n_matches = hweight_long(matched_profiles);
1923 } else {
1924 IWL_ERR(mvm, "no net detect match information available\n");
1925 n_matches = 0;
1926 }
1927
83ea00d6 1928 net_detect = kzalloc(struct_size(net_detect, matches, n_matches),
d9718da8
LC		 1929 GFP_KERNEL);
1930 if (!net_detect || !n_matches)
1931 goto out_report_nd;
1932
1933 for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) {
1934 struct cfg80211_wowlan_nd_match *match;
ae90c2e5 1935 int idx, n_channels = 0;
8ed4e659 1936
e4fe5d4b 1937 n_channels = iwl_mvm_query_num_match_chans(mvm, &query, i);
d9718da8 1938
83ea00d6 1939 match = kzalloc(struct_size(match, channels, n_channels),
8ed4e659 1940 GFP_KERNEL);
d9718da8
LC		 1941 if (!match)
1942 goto out_report_nd;
1943
8ed4e659
LC		 1944 net_detect->matches[net_detect->n_matches++] = match;
1945
ae90c2e5
LC		 1946 /* We inverted the order of the SSIDs in the scan
1947 * request, so invert the index here.
1948 */
1949 idx = mvm->n_nd_match_sets - i - 1;
1950 match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len;
1951 memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid,
d9718da8
LC		 1952 match->ssid.ssid_len);
1953
8ed4e659
LC		 1954 if (mvm->n_nd_channels < n_channels)
1955 continue;
1956
e4fe5d4b 1957 iwl_mvm_query_set_freqs(mvm, &query, match, i);
d9718da8
LC		 1958 }
1959
1960out_report_nd:
1961 wakeup.net_detect = net_detect;
b04998f3 1962out:
d9718da8
LC		 1963 iwl_mvm_free_nd(mvm);
1964
2021a89d
LC		 1965 mutex_unlock(&mvm->mutex);
1966 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
d9718da8
LC		 1967
1968 if (net_detect) {
1969 for (i = 0; i < net_detect->n_matches; i++)
1970 kfree(net_detect->matches[i]);
1971 kfree(net_detect);
1972 }
2021a89d
LC		 1973}
1974
6d9d32b8
JB		 1975static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac,
1976 struct ieee80211_vif *vif)
1977{
1978 /* skip the one we keep connection on */
1979 if (data == vif)
1980 return;
1981
1982 if (vif->type == NL80211_IFTYPE_STATION)
1983 ieee80211_resume_disconnect(vif);
1984}
1985
f57d104f
SM		 1986static int iwl_mvm_check_rt_status(struct iwl_mvm *mvm,
1987 struct ieee80211_vif *vif)
1988{
91c28b83 1989 u32 base = mvm->trans->dbg.lmac_error_event_table[0];
f57d104f
SM		 1990 struct error_table_start {
1991 /* cf. struct iwl_error_event_table */
1992 u32 valid;
1993 u32 error_id;
1994 } err_info;
1995
1996 iwl_trans_read_mem_bytes(mvm->trans, base,
1997 &err_info, sizeof(err_info));
1998
1999 if (err_info.valid &&
2000 err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
2001 struct cfg80211_wowlan_wakeup wakeup = {
2002 .rfkill_release = true,
2003 };
2004 ieee80211_report_wowlan_wakeup(vif, &wakeup, GFP_KERNEL);
2005 }
2006 return err_info.valid;
2007}
2008
debff618 2009static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test)
8ca151b5 2010{
8ca151b5 2011 struct ieee80211_vif *vif = NULL;
23ae6128 2012 int ret = 1;
8ca151b5 2013 enum iwl_d3_status d3_status;
6d9d32b8 2014 bool keep = false;
23ae6128
MG		 2015 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2016 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
fcea37b2
LC		 2017 bool d0i3_first = fw_has_capa(&mvm->fw->ucode_capa,
2018 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST);
8ca151b5
JB		 2019
2020 mutex_lock(&mvm->mutex);
2021
2022 /* get the BSS vif pointer again */
7f549e2c
LC		 2023 vif = iwl_mvm_get_bss_vif(mvm);
2024 if (IS_ERR_OR_NULL(vif))
a500e469 2025 goto err;
8ca151b5 2026
23ae6128 2027 ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !unified_image);
8ca151b5 2028 if (ret)
a500e469 2029 goto err;
8ca151b5
JB		 2030
2031 if (d3_status != IWL_D3_STATUS_ALIVE) {
2032 IWL_INFO(mvm, "Device was reset during suspend\n");
a500e469 2033 goto err;
8ca151b5
JB		 2034 }
2035
2d8c2615 2036 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
afc66bb7 2037
f57d104f
SM		 2038 if (iwl_mvm_check_rt_status(mvm, vif)) {
2039 set_bit(STATUS_FW_ERROR, &mvm->trans->status);
2040 iwl_mvm_dump_nic_error_log(mvm);
2041 iwl_fw_dbg_collect_desc(&mvm->fwrt, &iwl_dump_desc_assert,
124e0eba 2042 false, 0);
f57d104f
SM		 2043 ret = 1;
2044 goto err;
2045 }
2046
fcea37b2
LC		 2047 if (d0i3_first) {
2048 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL);
2049 if (ret < 0) {
2050 IWL_ERR(mvm, "Failed to send D0I3_END_CMD first (%d)\n",
2051 ret);
2052 goto err;
2053 }
2054 }
2055
47c8b154
JD		 2056 /*
2057 * Query the current location and source from the D3 firmware so we
2058 * can play it back when we re-intiailize the D0 firmware
2059 */
2060 iwl_mvm_update_changed_regdom(mvm);
2061
42ce76d6
LC		 2062 if (!unified_image)
2063 /* Re-configure default SAR profile */
2064 iwl_mvm_sar_select_profile(mvm, 1, 1);
2065
2021a89d 2066 if (mvm->net_detect) {
5a143db8
LC		 2067 /* If this is a non-unified image, we restart the FW,
2068 * so no need to stop the netdetect scan. If that
2069 * fails, continue and try to get the wake-up reasons,
2070 * but trigger a HW restart by keeping a failure code
2071 * in ret.
2072 */
2073 if (unified_image)
2074 ret = iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_NETDETECT,
2075 false);
2076
2021a89d 2077 iwl_mvm_query_netdetect_reasons(mvm, vif);
e0ede177
LC		 2078 /* has unlocked the mutex, so skip that */
2079 goto out;
2021a89d
LC		 2080 } else {
2081 keep = iwl_mvm_query_wakeup_reasons(mvm, vif);
78c9df66 2082#ifdef CONFIG_IWLWIFI_DEBUGFS
2021a89d
LC		 2083 if (keep)
2084 mvm->keep_vif = vif;
0c2ae049 2085#endif
e0ede177
LC		 2086 /* has unlocked the mutex, so skip that */
2087 goto out_iterate;
2021a89d 2088 }
8ca151b5 2089
a500e469
LC		 2090err:
2091 iwl_mvm_free_nd(mvm);
8ca151b5
JB		 2092 mutex_unlock(&mvm->mutex);
2093
e0ede177 2094out_iterate:
6d9d32b8
JB		 2095 if (!test)
2096 ieee80211_iterate_active_interfaces_rtnl(mvm->hw,
2097 IEEE80211_IFACE_ITER_NORMAL,
2098 iwl_mvm_d3_disconnect_iter, keep ? vif : NULL);
8ca151b5 2099
e0ede177 2100out:
fcea37b2 2101 /* no need to reset the device in unified images, if successful */
23ae6128 2102 if (unified_image && !ret) {
fcea37b2
LC		 2103 /* nothing else to do if we already sent D0I3_END_CMD */
2104 if (d0i3_first)
2105 return 0;
2106
f28b9361 2107 ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, 0, 0, NULL);
fcea37b2 2108 if (!ret)
23ae6128
MG		 2109 return 0;
2110 }
2111
2112 /*
2113 * Reconfigure the device in one of the following cases:
2114 * 1. We are not using a unified image
2115 * 2. We are using a unified image but had an error while exiting D3
2116 */
59cd827f 2117 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status);
23ae6128
MG		 2118 /*
2119 * When switching images we return 1, which causes mac80211
2120 * to do a reconfig with IEEE80211_RECONFIG_TYPE_RESTART.
2121 * This type of reconfig calls iwl_mvm_restart_complete(),
2122 * where we unref the IWL_MVM_REF_UCODE_DOWN, so we need
2123 * to take the reference here.
dcfc7fb1
LC		 2124 */
2125 iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
23ae6128 2126
8ca151b5
JB		 2127 return 1;
2128}
2129
2d42801b 2130static int iwl_mvm_resume_d3(struct iwl_mvm *mvm)
debff618 2131{
2d42801b
EP		 2132 iwl_trans_resume(mvm->trans);
2133
2134 return __iwl_mvm_resume(mvm, false);
2135}
2136
2137static int iwl_mvm_resume_d0i3(struct iwl_mvm *mvm)
2138{
2139 bool exit_now;
6dfb36c8 2140 enum iwl_d3_status d3_status;
b7282643 2141 struct iwl_trans *trans = mvm->trans;
6dfb36c8 2142
23ae6128 2143 iwl_trans_d3_resume(trans, &d3_status, false, false);
2d42801b
EP		 2144
2145 /*
2146 * make sure to clear D0I3_DEFER_WAKEUP before
2147 * calling iwl_trans_resume(), which might wait
2148 * for d0i3 exit completion.
2149 */
2150 mutex_lock(&mvm->d0i3_suspend_mutex);
2151 __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
2152 exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
2153 &mvm->d0i3_suspend_flags);
2154 mutex_unlock(&mvm->d0i3_suspend_mutex);
2155 if (exit_now) {
2156 IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
2157 _iwl_mvm_exit_d0i3(mvm);
2158 }
debff618 2159
b7282643 2160 iwl_trans_resume(trans);
465921c8 2161
b7282643 2162 if (iwl_mvm_enter_d0i3_on_suspend(mvm)) {
2d42801b 2163 int ret = iwl_mvm_exit_d0i3(mvm->hw->priv);
6735943f 2164
2d42801b
EP		 2165 if (ret)
2166 return ret;
2167 /*
2168 * d0i3 exit will be deferred until reconfig_complete.
2169 * make sure there we are out of d0i3.
2170 */
91742449 2171 }
2d42801b
EP		 2172 return 0;
2173}
d15a747f 2174
2d42801b
EP		 2175int iwl_mvm_resume(struct ieee80211_hw *hw)
2176{
2177 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
b7282643 2178 int ret;
2d42801b 2179
b7282643
LC		 2180 if (mvm->trans->system_pm_mode == IWL_PLAT_PM_MODE_D0I3)
2181 ret = iwl_mvm_resume_d0i3(mvm);
2d42801b 2182 else
b7282643
LC		 2183 ret = iwl_mvm_resume_d3(mvm);
2184
2185 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2186
7d9d0d56
LC		 2187 iwl_mvm_resume_tcm(mvm);
2188
7f8ae00f
HD		 2189 iwl_fw_runtime_resume(&mvm->fwrt);
2190
b7282643 2191 return ret;
debff618
JB		 2192}
2193
8ca151b5
JB		 2194void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
2195{
2196 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
2197
2198 device_set_wakeup_enable(mvm->trans->dev, enabled);
2199}
debff618
JB		 2200
2201#ifdef CONFIG_IWLWIFI_DEBUGFS
2202static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file)
2203{
2204 struct iwl_mvm *mvm = inode->i_private;
2205 int err;
2206
2207 if (mvm->d3_test_active)
2208 return -EBUSY;
2209
2210 file->private_data = inode->i_private;
2211
debff618
JB		 2212 synchronize_net();
2213
b7282643
LC		 2214 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3;
2215
7d9d0d56
LC		 2216 iwl_mvm_pause_tcm(mvm, true);
2217
7f8ae00f
HD		 2218 iwl_fw_runtime_suspend(&mvm->fwrt);
2219
debff618
JB		 2220 /* start pseudo D3 */
2221 rtnl_lock();
2222 err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true);
2223 rtnl_unlock();
2224 if (err > 0)
2225 err = -EINVAL;
cfbc6c4c 2226 if (err)
debff618 2227 return err;
cfbc6c4c 2228
debff618 2229 mvm->d3_test_active = true;
78c9df66 2230 mvm->keep_vif = NULL;
debff618
JB		 2231 return 0;
2232}
2233
2234static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf,
2235 size_t count, loff_t *ppos)
2236{
2237 struct iwl_mvm *mvm = file->private_data;
2238 u32 pme_asserted;
2239
2240 while (true) {
4ed80a86
EP		 2241 /* read pme_ptr if available */
2242 if (mvm->d3_test_pme_ptr) {
2243 pme_asserted = iwl_trans_read_mem32(mvm->trans,
2244 mvm->d3_test_pme_ptr);
2245 if (pme_asserted)
2246 break;
2247 }
2248
debff618
JB		 2249 if (msleep_interruptible(100))
2250 break;
2251 }
2252
2253 return 0;
2254}
2255
2256static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac,
2257 struct ieee80211_vif *vif)
2258{
78c9df66
EP		 2259 /* skip the one we keep connection on */
2260 if (_data == vif)
2261 return;
2262
debff618
JB		 2263 if (vif->type == NL80211_IFTYPE_STATION)
2264 ieee80211_connection_loss(vif);
2265}
2266
2267static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file)
2268{
2269 struct iwl_mvm *mvm = inode->i_private;
85cd69b8
LC		 2270 bool unified_image = fw_has_capa(&mvm->fw->ucode_capa,
2271 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG);
debff618
JB		 2272
2273 mvm->d3_test_active = false;
b7282643 2274
2d8c2615
SM		 2275 iwl_fw_dbg_read_d3_debug_data(&mvm->fwrt);
2276
31ca09dd 2277 rtnl_lock();
debff618 2278 __iwl_mvm_resume(mvm, true);
31ca09dd 2279 rtnl_unlock();
b7282643 2280
7d9d0d56
LC		 2281 iwl_mvm_resume_tcm(mvm);
2282
7f8ae00f
HD		 2283 iwl_fw_runtime_resume(&mvm->fwrt);
2284
b7282643
LC		 2285 mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED;
2286
debff618 2287 iwl_abort_notification_waits(&mvm->notif_wait);
85cd69b8
LC		 2288 if (!unified_image) {
2289 int remaining_time = 10;
debff618 2290
85cd69b8
LC		 2291 ieee80211_restart_hw(mvm->hw);
2292
2293 /* wait for restart and disconnect all interfaces */
2294 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) &&
2295 remaining_time > 0) {
2296 remaining_time--;
2297 msleep(1000);
2298 }
debff618 2299
85cd69b8
LC		 2300 if (remaining_time == 0)
2301 IWL_ERR(mvm, "Timed out waiting for HW restart!\n");
2302 }
debff618
JB		 2303
2304 ieee80211_iterate_active_interfaces_atomic(
2305 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
78c9df66 2306 iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif);
debff618 2307
debff618
JB		 2308 return 0;
2309}
2310
2311const struct file_operations iwl_dbgfs_d3_test_ops = {
2312 .llseek = no_llseek,
2313 .open = iwl_mvm_d3_test_open,
2314 .read = iwl_mvm_d3_test_read,
2315 .release = iwl_mvm_d3_test_release,
2316};
2317#endif
Linux 6.x block layer and io_uring tree(s)