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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 |
23ae6128 | 10 | * Copyright(c) 2016 Intel Deutschland GmbH |
8ca151b5 JB |
11 | * |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of version 2 of the GNU General Public License as | |
14 | * published by the Free Software Foundation. | |
15 | * | |
16 | * This program is distributed in the hope that it will be useful, but | |
17 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
19 | * General Public License for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License | |
22 | * along with this program; if not, write to the Free Software | |
23 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
24 | * USA | |
25 | * | |
26 | * The full GNU General Public License is included in this distribution | |
410dc5aa | 27 | * in the file called COPYING. |
8ca151b5 JB |
28 | * |
29 | * Contact Information: | |
cb2f8277 | 30 | * Intel Linux Wireless <linuxwifi@intel.com> |
8ca151b5 JB |
31 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
32 | * | |
33 | * BSD LICENSE | |
34 | * | |
51368bf7 | 35 | * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. |
65ff556b | 36 | * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH |
23ae6128 | 37 | * Copyright(c) 2016 Intel Deutschland GmbH |
8ca151b5 JB |
38 | * All rights reserved. |
39 | * | |
40 | * Redistribution and use in source and binary forms, with or without | |
41 | * modification, are permitted provided that the following conditions | |
42 | * are met: | |
43 | * | |
44 | * * Redistributions of source code must retain the above copyright | |
45 | * notice, this list of conditions and the following disclaimer. | |
46 | * * Redistributions in binary form must reproduce the above copyright | |
47 | * notice, this list of conditions and the following disclaimer in | |
48 | * the documentation and/or other materials provided with the | |
49 | * distribution. | |
50 | * * Neither the name Intel Corporation nor the names of its | |
51 | * contributors may be used to endorse or promote products derived | |
52 | * from this software without specific prior written permission. | |
53 | * | |
54 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
55 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
56 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
57 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
58 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
59 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
60 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
61 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
62 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
63 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
64 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
65 | * | |
66 | *****************************************************************************/ | |
67 | ||
f444eb10 | 68 | #include <linux/etherdevice.h> |
f0c2646a | 69 | #include <linux/ip.h> |
debff618 | 70 | #include <linux/fs.h> |
8ca151b5 JB |
71 | #include <net/cfg80211.h> |
72 | #include <net/ipv6.h> | |
f0c2646a | 73 | #include <net/tcp.h> |
f7fc5989 | 74 | #include <net/addrconf.h> |
8ca151b5 JB |
75 | #include "iwl-modparams.h" |
76 | #include "fw-api.h" | |
77 | #include "mvm.h" | |
78 | ||
79 | void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw, | |
80 | struct ieee80211_vif *vif, | |
81 | struct cfg80211_gtk_rekey_data *data) | |
82 | { | |
83 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
84 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
85 | ||
86 | if (iwlwifi_mod_params.sw_crypto) | |
87 | return; | |
88 | ||
89 | mutex_lock(&mvm->mutex); | |
90 | ||
91 | memcpy(mvmvif->rekey_data.kek, data->kek, NL80211_KEK_LEN); | |
92 | memcpy(mvmvif->rekey_data.kck, data->kck, NL80211_KCK_LEN); | |
93 | mvmvif->rekey_data.replay_ctr = | |
94 | cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); | |
95 | mvmvif->rekey_data.valid = true; | |
96 | ||
97 | mutex_unlock(&mvm->mutex); | |
98 | } | |
99 | ||
100 | #if IS_ENABLED(CONFIG_IPV6) | |
101 | void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw, | |
102 | struct ieee80211_vif *vif, | |
103 | struct inet6_dev *idev) | |
104 | { | |
105 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
106 | struct inet6_ifaddr *ifa; | |
107 | int idx = 0; | |
108 | ||
c97dab40 SS |
109 | memset(mvmvif->tentative_addrs, 0, sizeof(mvmvif->tentative_addrs)); |
110 | ||
a3777e0f | 111 | read_lock_bh(&idev->lock); |
8ca151b5 JB |
112 | list_for_each_entry(ifa, &idev->addr_list, if_list) { |
113 | mvmvif->target_ipv6_addrs[idx] = ifa->addr; | |
c97dab40 SS |
114 | if (ifa->flags & IFA_F_TENTATIVE) |
115 | __set_bit(idx, mvmvif->tentative_addrs); | |
8ca151b5 | 116 | idx++; |
5369d6c1 | 117 | if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX) |
8ca151b5 JB |
118 | break; |
119 | } | |
a3777e0f | 120 | read_unlock_bh(&idev->lock); |
8ca151b5 JB |
121 | |
122 | mvmvif->num_target_ipv6_addrs = idx; | |
123 | } | |
124 | #endif | |
125 | ||
126 | void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw, | |
127 | struct ieee80211_vif *vif, int idx) | |
128 | { | |
129 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
130 | ||
131 | mvmvif->tx_key_idx = idx; | |
132 | } | |
133 | ||
134 | static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out) | |
135 | { | |
136 | int i; | |
137 | ||
138 | for (i = 0; i < IWL_P1K_SIZE; i++) | |
139 | out[i] = cpu_to_le16(p1k[i]); | |
140 | } | |
141 | ||
f5e28eac JB |
142 | static const u8 *iwl_mvm_find_max_pn(struct ieee80211_key_conf *key, |
143 | struct iwl_mvm_key_pn *ptk_pn, | |
144 | struct ieee80211_key_seq *seq, | |
145 | int tid, int queues) | |
146 | { | |
147 | const u8 *ret = seq->ccmp.pn; | |
148 | int i; | |
149 | ||
150 | /* get the PN from mac80211, used on the default queue */ | |
151 | ieee80211_get_key_rx_seq(key, tid, seq); | |
152 | ||
153 | /* and use the internal data for the other queues */ | |
154 | for (i = 1; i < queues; i++) { | |
155 | const u8 *tmp = ptk_pn->q[i].pn[tid]; | |
156 | ||
157 | if (memcmp(ret, tmp, IEEE80211_CCMP_PN_LEN) <= 0) | |
158 | ret = tmp; | |
159 | } | |
160 | ||
161 | return ret; | |
162 | } | |
163 | ||
8ca151b5 JB |
164 | struct wowlan_key_data { |
165 | struct iwl_wowlan_rsc_tsc_params_cmd *rsc_tsc; | |
166 | struct iwl_wowlan_tkip_params_cmd *tkip; | |
ac8ef0ce | 167 | bool error, use_rsc_tsc, use_tkip, configure_keys; |
5312e54d | 168 | int wep_key_idx; |
8ca151b5 JB |
169 | }; |
170 | ||
171 | static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw, | |
172 | struct ieee80211_vif *vif, | |
173 | struct ieee80211_sta *sta, | |
174 | struct ieee80211_key_conf *key, | |
175 | void *_data) | |
176 | { | |
177 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
178 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
179 | struct wowlan_key_data *data = _data; | |
180 | struct aes_sc *aes_sc, *aes_tx_sc = NULL; | |
181 | struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL; | |
182 | struct iwl_p1k_cache *rx_p1ks; | |
183 | u8 *rx_mic_key; | |
184 | struct ieee80211_key_seq seq; | |
185 | u32 cur_rx_iv32 = 0; | |
186 | u16 p1k[IWL_P1K_SIZE]; | |
187 | int ret, i; | |
188 | ||
8ca151b5 JB |
189 | switch (key->cipher) { |
190 | case WLAN_CIPHER_SUITE_WEP40: | |
191 | case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */ | |
192 | struct { | |
193 | struct iwl_mvm_wep_key_cmd wep_key_cmd; | |
194 | struct iwl_mvm_wep_key wep_key; | |
195 | } __packed wkc = { | |
196 | .wep_key_cmd.mac_id_n_color = | |
197 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
198 | mvmvif->color)), | |
199 | .wep_key_cmd.num_keys = 1, | |
200 | /* firmware sets STA_KEY_FLG_WEP_13BYTES */ | |
201 | .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP, | |
202 | .wep_key.key_index = key->keyidx, | |
203 | .wep_key.key_size = key->keylen, | |
204 | }; | |
205 | ||
206 | /* | |
207 | * This will fail -- the key functions don't set support | |
208 | * pairwise WEP keys. However, that's better than silently | |
209 | * failing WoWLAN. Or maybe not? | |
210 | */ | |
211 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) | |
212 | break; | |
213 | ||
214 | memcpy(&wkc.wep_key.key[3], key->key, key->keylen); | |
215 | if (key->keyidx == mvmvif->tx_key_idx) { | |
216 | /* TX key must be at offset 0 */ | |
217 | wkc.wep_key.key_offset = 0; | |
218 | } else { | |
219 | /* others start at 1 */ | |
5312e54d JB |
220 | data->wep_key_idx++; |
221 | wkc.wep_key.key_offset = data->wep_key_idx; | |
8ca151b5 JB |
222 | } |
223 | ||
ac8ef0ce EP |
224 | if (data->configure_keys) { |
225 | mutex_lock(&mvm->mutex); | |
226 | ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, 0, | |
227 | sizeof(wkc), &wkc); | |
228 | data->error = ret != 0; | |
229 | ||
230 | mvm->ptk_ivlen = key->iv_len; | |
231 | mvm->ptk_icvlen = key->icv_len; | |
232 | mvm->gtk_ivlen = key->iv_len; | |
233 | mvm->gtk_icvlen = key->icv_len; | |
234 | mutex_unlock(&mvm->mutex); | |
235 | } | |
f444eb10 | 236 | |
8ca151b5 | 237 | /* don't upload key again */ |
ac8ef0ce | 238 | return; |
8ca151b5 JB |
239 | } |
240 | default: | |
241 | data->error = true; | |
ac8ef0ce | 242 | return; |
8ca151b5 JB |
243 | case WLAN_CIPHER_SUITE_AES_CMAC: |
244 | /* | |
245 | * Ignore CMAC keys -- the WoWLAN firmware doesn't support them | |
246 | * but we also shouldn't abort suspend due to that. It does have | |
247 | * support for the IGTK key renewal, but doesn't really use the | |
248 | * IGTK for anything. This means we could spuriously wake up or | |
249 | * be deauthenticated, but that was considered acceptable. | |
250 | */ | |
ac8ef0ce | 251 | return; |
8ca151b5 JB |
252 | case WLAN_CIPHER_SUITE_TKIP: |
253 | if (sta) { | |
1ad4f639 EP |
254 | u64 pn64; |
255 | ||
8ca151b5 JB |
256 | tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc; |
257 | tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc; | |
258 | ||
259 | rx_p1ks = data->tkip->rx_uni; | |
260 | ||
1ad4f639 EP |
261 | pn64 = atomic64_read(&key->tx_pn); |
262 | tkip_tx_sc->iv16 = cpu_to_le16(TKIP_PN_TO_IV16(pn64)); | |
263 | tkip_tx_sc->iv32 = cpu_to_le32(TKIP_PN_TO_IV32(pn64)); | |
8ca151b5 | 264 | |
1ad4f639 EP |
265 | ieee80211_get_tkip_p1k_iv(key, TKIP_PN_TO_IV32(pn64), |
266 | p1k); | |
8ca151b5 JB |
267 | iwl_mvm_convert_p1k(p1k, data->tkip->tx.p1k); |
268 | ||
269 | memcpy(data->tkip->mic_keys.tx, | |
270 | &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], | |
271 | IWL_MIC_KEY_SIZE); | |
272 | ||
273 | rx_mic_key = data->tkip->mic_keys.rx_unicast; | |
274 | } else { | |
275 | tkip_sc = | |
276 | data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc; | |
277 | rx_p1ks = data->tkip->rx_multi; | |
278 | rx_mic_key = data->tkip->mic_keys.rx_mcast; | |
279 | } | |
280 | ||
281 | /* | |
282 | * For non-QoS this relies on the fact that both the uCode and | |
283 | * mac80211 use TID 0 (as they need to to avoid replay attacks) | |
284 | * for checking the IV in the frames. | |
285 | */ | |
286 | for (i = 0; i < IWL_NUM_RSC; i++) { | |
287 | ieee80211_get_key_rx_seq(key, i, &seq); | |
288 | tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16); | |
289 | tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32); | |
290 | /* wrapping isn't allowed, AP must rekey */ | |
291 | if (seq.tkip.iv32 > cur_rx_iv32) | |
292 | cur_rx_iv32 = seq.tkip.iv32; | |
293 | } | |
294 | ||
295 | ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, | |
296 | cur_rx_iv32, p1k); | |
297 | iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k); | |
298 | ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, | |
299 | cur_rx_iv32 + 1, p1k); | |
300 | iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k); | |
301 | ||
302 | memcpy(rx_mic_key, | |
303 | &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], | |
304 | IWL_MIC_KEY_SIZE); | |
305 | ||
306 | data->use_tkip = true; | |
307 | data->use_rsc_tsc = true; | |
308 | break; | |
309 | case WLAN_CIPHER_SUITE_CCMP: | |
310 | if (sta) { | |
6645d5e4 | 311 | u64 pn64; |
8ca151b5 JB |
312 | |
313 | aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc; | |
314 | aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc; | |
315 | ||
6645d5e4 JB |
316 | pn64 = atomic64_read(&key->tx_pn); |
317 | aes_tx_sc->pn = cpu_to_le64(pn64); | |
8ca151b5 JB |
318 | } else { |
319 | aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc; | |
320 | } | |
321 | ||
322 | /* | |
323 | * For non-QoS this relies on the fact that both the uCode and | |
f5e28eac | 324 | * mac80211/our RX code use TID 0 for checking the PN. |
8ca151b5 | 325 | */ |
f5e28eac JB |
326 | if (sta && iwl_mvm_has_new_rx_api(mvm)) { |
327 | struct iwl_mvm_sta *mvmsta; | |
328 | struct iwl_mvm_key_pn *ptk_pn; | |
329 | const u8 *pn; | |
330 | ||
331 | mvmsta = iwl_mvm_sta_from_mac80211(sta); | |
332 | ptk_pn = rcu_dereference_protected( | |
333 | mvmsta->ptk_pn[key->keyidx], | |
334 | lockdep_is_held(&mvm->mutex)); | |
335 | if (WARN_ON(!ptk_pn)) | |
336 | break; | |
337 | ||
338 | for (i = 0; i < IWL_MAX_TID_COUNT; i++) { | |
339 | pn = iwl_mvm_find_max_pn(key, ptk_pn, &seq, i, | |
340 | mvm->trans->num_rx_queues); | |
341 | aes_sc[i].pn = cpu_to_le64((u64)pn[5] | | |
342 | ((u64)pn[4] << 8) | | |
343 | ((u64)pn[3] << 16) | | |
344 | ((u64)pn[2] << 24) | | |
345 | ((u64)pn[1] << 32) | | |
346 | ((u64)pn[0] << 40)); | |
347 | } | |
348 | } else { | |
349 | for (i = 0; i < IWL_NUM_RSC; i++) { | |
350 | u8 *pn = seq.ccmp.pn; | |
351 | ||
352 | ieee80211_get_key_rx_seq(key, i, &seq); | |
353 | aes_sc[i].pn = cpu_to_le64((u64)pn[5] | | |
354 | ((u64)pn[4] << 8) | | |
355 | ((u64)pn[3] << 16) | | |
356 | ((u64)pn[2] << 24) | | |
357 | ((u64)pn[1] << 32) | | |
358 | ((u64)pn[0] << 40)); | |
359 | } | |
8ca151b5 JB |
360 | } |
361 | data->use_rsc_tsc = true; | |
362 | break; | |
363 | } | |
364 | ||
ac8ef0ce EP |
365 | if (data->configure_keys) { |
366 | mutex_lock(&mvm->mutex); | |
5312e54d | 367 | /* |
ac8ef0ce EP |
368 | * The D3 firmware hardcodes the key offset 0 as the key it |
369 | * uses to transmit packets to the AP, i.e. the PTK. | |
5312e54d | 370 | */ |
ac8ef0ce EP |
371 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { |
372 | mvm->ptk_ivlen = key->iv_len; | |
373 | mvm->ptk_icvlen = key->icv_len; | |
374 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 0); | |
375 | } else { | |
376 | /* | |
377 | * firmware only supports TSC/RSC for a single key, | |
378 | * so if there are multiple keep overwriting them | |
379 | * with new ones -- this relies on mac80211 doing | |
380 | * list_add_tail(). | |
381 | */ | |
382 | mvm->gtk_ivlen = key->iv_len; | |
383 | mvm->gtk_icvlen = key->icv_len; | |
384 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, 1); | |
385 | } | |
386 | mutex_unlock(&mvm->mutex); | |
387 | data->error = ret != 0; | |
8ca151b5 | 388 | } |
8ca151b5 JB |
389 | } |
390 | ||
391 | static int iwl_mvm_send_patterns(struct iwl_mvm *mvm, | |
392 | struct cfg80211_wowlan *wowlan) | |
393 | { | |
394 | struct iwl_wowlan_patterns_cmd *pattern_cmd; | |
395 | struct iwl_host_cmd cmd = { | |
396 | .id = WOWLAN_PATTERNS, | |
397 | .dataflags[0] = IWL_HCMD_DFL_NOCOPY, | |
8ca151b5 JB |
398 | }; |
399 | int i, err; | |
400 | ||
401 | if (!wowlan->n_patterns) | |
402 | return 0; | |
403 | ||
404 | cmd.len[0] = sizeof(*pattern_cmd) + | |
405 | wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern); | |
406 | ||
407 | pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL); | |
408 | if (!pattern_cmd) | |
409 | return -ENOMEM; | |
410 | ||
411 | pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns); | |
412 | ||
413 | for (i = 0; i < wowlan->n_patterns; i++) { | |
414 | int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); | |
415 | ||
416 | memcpy(&pattern_cmd->patterns[i].mask, | |
417 | wowlan->patterns[i].mask, mask_len); | |
418 | memcpy(&pattern_cmd->patterns[i].pattern, | |
419 | wowlan->patterns[i].pattern, | |
420 | wowlan->patterns[i].pattern_len); | |
421 | pattern_cmd->patterns[i].mask_size = mask_len; | |
422 | pattern_cmd->patterns[i].pattern_size = | |
423 | wowlan->patterns[i].pattern_len; | |
424 | } | |
425 | ||
426 | cmd.data[0] = pattern_cmd; | |
427 | err = iwl_mvm_send_cmd(mvm, &cmd); | |
428 | kfree(pattern_cmd); | |
429 | return err; | |
430 | } | |
431 | ||
f0c2646a JB |
432 | enum iwl_mvm_tcp_packet_type { |
433 | MVM_TCP_TX_SYN, | |
434 | MVM_TCP_RX_SYNACK, | |
435 | MVM_TCP_TX_DATA, | |
436 | MVM_TCP_RX_ACK, | |
437 | MVM_TCP_RX_WAKE, | |
438 | MVM_TCP_TX_FIN, | |
439 | }; | |
440 | ||
441 | static __le16 pseudo_hdr_check(int len, __be32 saddr, __be32 daddr) | |
442 | { | |
443 | __sum16 check = tcp_v4_check(len, saddr, daddr, 0); | |
444 | return cpu_to_le16(be16_to_cpu((__force __be16)check)); | |
445 | } | |
446 | ||
b002c7e1 | 447 | static void iwl_mvm_build_tcp_packet(struct ieee80211_vif *vif, |
f0c2646a JB |
448 | struct cfg80211_wowlan_tcp *tcp, |
449 | void *_pkt, u8 *mask, | |
450 | __le16 *pseudo_hdr_csum, | |
451 | enum iwl_mvm_tcp_packet_type ptype) | |
452 | { | |
453 | struct { | |
454 | struct ethhdr eth; | |
455 | struct iphdr ip; | |
456 | struct tcphdr tcp; | |
457 | u8 data[]; | |
458 | } __packed *pkt = _pkt; | |
459 | u16 ip_tot_len = sizeof(struct iphdr) + sizeof(struct tcphdr); | |
460 | int i; | |
461 | ||
462 | pkt->eth.h_proto = cpu_to_be16(ETH_P_IP), | |
463 | pkt->ip.version = 4; | |
464 | pkt->ip.ihl = 5; | |
465 | pkt->ip.protocol = IPPROTO_TCP; | |
466 | ||
467 | switch (ptype) { | |
468 | case MVM_TCP_TX_SYN: | |
469 | case MVM_TCP_TX_DATA: | |
470 | case MVM_TCP_TX_FIN: | |
471 | memcpy(pkt->eth.h_dest, tcp->dst_mac, ETH_ALEN); | |
472 | memcpy(pkt->eth.h_source, vif->addr, ETH_ALEN); | |
473 | pkt->ip.ttl = 128; | |
474 | pkt->ip.saddr = tcp->src; | |
475 | pkt->ip.daddr = tcp->dst; | |
476 | pkt->tcp.source = cpu_to_be16(tcp->src_port); | |
477 | pkt->tcp.dest = cpu_to_be16(tcp->dst_port); | |
478 | /* overwritten for TX SYN later */ | |
479 | pkt->tcp.doff = sizeof(struct tcphdr) / 4; | |
480 | pkt->tcp.window = cpu_to_be16(65000); | |
481 | break; | |
482 | case MVM_TCP_RX_SYNACK: | |
483 | case MVM_TCP_RX_ACK: | |
484 | case MVM_TCP_RX_WAKE: | |
485 | memcpy(pkt->eth.h_dest, vif->addr, ETH_ALEN); | |
486 | memcpy(pkt->eth.h_source, tcp->dst_mac, ETH_ALEN); | |
487 | pkt->ip.saddr = tcp->dst; | |
488 | pkt->ip.daddr = tcp->src; | |
489 | pkt->tcp.source = cpu_to_be16(tcp->dst_port); | |
490 | pkt->tcp.dest = cpu_to_be16(tcp->src_port); | |
491 | break; | |
492 | default: | |
493 | WARN_ON(1); | |
494 | return; | |
495 | } | |
496 | ||
497 | switch (ptype) { | |
498 | case MVM_TCP_TX_SYN: | |
499 | /* firmware assumes 8 option bytes - 8 NOPs for now */ | |
500 | memset(pkt->data, 0x01, 8); | |
501 | ip_tot_len += 8; | |
502 | pkt->tcp.doff = (sizeof(struct tcphdr) + 8) / 4; | |
503 | pkt->tcp.syn = 1; | |
504 | break; | |
505 | case MVM_TCP_TX_DATA: | |
506 | ip_tot_len += tcp->payload_len; | |
507 | memcpy(pkt->data, tcp->payload, tcp->payload_len); | |
508 | pkt->tcp.psh = 1; | |
509 | pkt->tcp.ack = 1; | |
510 | break; | |
511 | case MVM_TCP_TX_FIN: | |
512 | pkt->tcp.fin = 1; | |
513 | pkt->tcp.ack = 1; | |
514 | break; | |
515 | case MVM_TCP_RX_SYNACK: | |
516 | pkt->tcp.syn = 1; | |
517 | pkt->tcp.ack = 1; | |
518 | break; | |
519 | case MVM_TCP_RX_ACK: | |
520 | pkt->tcp.ack = 1; | |
521 | break; | |
522 | case MVM_TCP_RX_WAKE: | |
523 | ip_tot_len += tcp->wake_len; | |
524 | pkt->tcp.psh = 1; | |
525 | pkt->tcp.ack = 1; | |
526 | memcpy(pkt->data, tcp->wake_data, tcp->wake_len); | |
527 | break; | |
528 | } | |
529 | ||
530 | switch (ptype) { | |
531 | case MVM_TCP_TX_SYN: | |
532 | case MVM_TCP_TX_DATA: | |
533 | case MVM_TCP_TX_FIN: | |
534 | pkt->ip.tot_len = cpu_to_be16(ip_tot_len); | |
535 | pkt->ip.check = ip_fast_csum(&pkt->ip, pkt->ip.ihl); | |
536 | break; | |
537 | case MVM_TCP_RX_WAKE: | |
538 | for (i = 0; i < DIV_ROUND_UP(tcp->wake_len, 8); i++) { | |
539 | u8 tmp = tcp->wake_mask[i]; | |
540 | mask[i + 6] |= tmp << 6; | |
541 | if (i + 1 < DIV_ROUND_UP(tcp->wake_len, 8)) | |
542 | mask[i + 7] = tmp >> 2; | |
543 | } | |
544 | /* fall through for ethernet/IP/TCP headers mask */ | |
545 | case MVM_TCP_RX_SYNACK: | |
546 | case MVM_TCP_RX_ACK: | |
547 | mask[0] = 0xff; /* match ethernet */ | |
548 | /* | |
549 | * match ethernet, ip.version, ip.ihl | |
550 | * the ip.ihl half byte is really masked out by firmware | |
551 | */ | |
552 | mask[1] = 0x7f; | |
553 | mask[2] = 0x80; /* match ip.protocol */ | |
554 | mask[3] = 0xfc; /* match ip.saddr, ip.daddr */ | |
555 | mask[4] = 0x3f; /* match ip.daddr, tcp.source, tcp.dest */ | |
556 | mask[5] = 0x80; /* match tcp flags */ | |
557 | /* leave rest (0 or set for MVM_TCP_RX_WAKE) */ | |
558 | break; | |
559 | }; | |
560 | ||
561 | *pseudo_hdr_csum = pseudo_hdr_check(ip_tot_len - sizeof(struct iphdr), | |
562 | pkt->ip.saddr, pkt->ip.daddr); | |
563 | } | |
564 | ||
565 | static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm *mvm, | |
566 | struct ieee80211_vif *vif, | |
567 | struct cfg80211_wowlan_tcp *tcp) | |
568 | { | |
569 | struct iwl_wowlan_remote_wake_config *cfg; | |
570 | struct iwl_host_cmd cmd = { | |
571 | .id = REMOTE_WAKE_CONFIG_CMD, | |
572 | .len = { sizeof(*cfg), }, | |
573 | .dataflags = { IWL_HCMD_DFL_NOCOPY, }, | |
f0c2646a JB |
574 | }; |
575 | int ret; | |
576 | ||
577 | if (!tcp) | |
578 | return 0; | |
579 | ||
580 | cfg = kzalloc(sizeof(*cfg), GFP_KERNEL); | |
581 | if (!cfg) | |
582 | return -ENOMEM; | |
583 | cmd.data[0] = cfg; | |
584 | ||
585 | cfg->max_syn_retries = 10; | |
586 | cfg->max_data_retries = 10; | |
587 | cfg->tcp_syn_ack_timeout = 1; /* seconds */ | |
588 | cfg->tcp_ack_timeout = 1; /* seconds */ | |
589 | ||
590 | /* SYN (TX) */ | |
591 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 592 | vif, tcp, cfg->syn_tx.data, NULL, |
f0c2646a JB |
593 | &cfg->syn_tx.info.tcp_pseudo_header_checksum, |
594 | MVM_TCP_TX_SYN); | |
595 | cfg->syn_tx.info.tcp_payload_length = 0; | |
596 | ||
597 | /* SYN/ACK (RX) */ | |
598 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 599 | vif, tcp, cfg->synack_rx.data, cfg->synack_rx.rx_mask, |
f0c2646a JB |
600 | &cfg->synack_rx.info.tcp_pseudo_header_checksum, |
601 | MVM_TCP_RX_SYNACK); | |
602 | cfg->synack_rx.info.tcp_payload_length = 0; | |
603 | ||
604 | /* KEEPALIVE/ACK (TX) */ | |
605 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 606 | vif, tcp, cfg->keepalive_tx.data, NULL, |
f0c2646a JB |
607 | &cfg->keepalive_tx.info.tcp_pseudo_header_checksum, |
608 | MVM_TCP_TX_DATA); | |
609 | cfg->keepalive_tx.info.tcp_payload_length = | |
610 | cpu_to_le16(tcp->payload_len); | |
611 | cfg->sequence_number_offset = tcp->payload_seq.offset; | |
612 | /* length must be 0..4, the field is little endian */ | |
613 | cfg->sequence_number_length = tcp->payload_seq.len; | |
614 | cfg->initial_sequence_number = cpu_to_le32(tcp->payload_seq.start); | |
615 | cfg->keepalive_interval = cpu_to_le16(tcp->data_interval); | |
616 | if (tcp->payload_tok.len) { | |
617 | cfg->token_offset = tcp->payload_tok.offset; | |
618 | cfg->token_length = tcp->payload_tok.len; | |
619 | cfg->num_tokens = | |
620 | cpu_to_le16(tcp->tokens_size % tcp->payload_tok.len); | |
621 | memcpy(cfg->tokens, tcp->payload_tok.token_stream, | |
622 | tcp->tokens_size); | |
623 | } else { | |
624 | /* set tokens to max value to almost never run out */ | |
625 | cfg->num_tokens = cpu_to_le16(65535); | |
626 | } | |
627 | ||
628 | /* ACK (RX) */ | |
629 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 630 | vif, tcp, cfg->keepalive_ack_rx.data, |
f0c2646a JB |
631 | cfg->keepalive_ack_rx.rx_mask, |
632 | &cfg->keepalive_ack_rx.info.tcp_pseudo_header_checksum, | |
633 | MVM_TCP_RX_ACK); | |
634 | cfg->keepalive_ack_rx.info.tcp_payload_length = 0; | |
635 | ||
636 | /* WAKEUP (RX) */ | |
637 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 638 | vif, tcp, cfg->wake_rx.data, cfg->wake_rx.rx_mask, |
f0c2646a JB |
639 | &cfg->wake_rx.info.tcp_pseudo_header_checksum, |
640 | MVM_TCP_RX_WAKE); | |
641 | cfg->wake_rx.info.tcp_payload_length = | |
642 | cpu_to_le16(tcp->wake_len); | |
643 | ||
644 | /* FIN */ | |
645 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 646 | vif, tcp, cfg->fin_tx.data, NULL, |
f0c2646a JB |
647 | &cfg->fin_tx.info.tcp_pseudo_header_checksum, |
648 | MVM_TCP_TX_FIN); | |
649 | cfg->fin_tx.info.tcp_payload_length = 0; | |
650 | ||
651 | ret = iwl_mvm_send_cmd(mvm, &cmd); | |
652 | kfree(cfg); | |
653 | ||
654 | return ret; | |
655 | } | |
656 | ||
8ca151b5 JB |
657 | static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif, |
658 | struct ieee80211_sta *ap_sta) | |
659 | { | |
660 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
661 | struct ieee80211_chanctx_conf *ctx; | |
662 | u8 chains_static, chains_dynamic; | |
663 | struct cfg80211_chan_def chandef; | |
664 | int ret, i; | |
665 | struct iwl_binding_cmd binding_cmd = {}; | |
666 | struct iwl_time_quota_cmd quota_cmd = {}; | |
667 | u32 status; | |
668 | ||
669 | /* add back the PHY */ | |
670 | if (WARN_ON(!mvmvif->phy_ctxt)) | |
671 | return -EINVAL; | |
672 | ||
673 | rcu_read_lock(); | |
674 | ctx = rcu_dereference(vif->chanctx_conf); | |
675 | if (WARN_ON(!ctx)) { | |
676 | rcu_read_unlock(); | |
677 | return -EINVAL; | |
678 | } | |
679 | chandef = ctx->def; | |
680 | chains_static = ctx->rx_chains_static; | |
681 | chains_dynamic = ctx->rx_chains_dynamic; | |
682 | rcu_read_unlock(); | |
683 | ||
684 | ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef, | |
685 | chains_static, chains_dynamic); | |
686 | if (ret) | |
687 | return ret; | |
688 | ||
689 | /* add back the MAC */ | |
690 | mvmvif->uploaded = false; | |
691 | ||
692 | if (WARN_ON(!vif->bss_conf.assoc)) | |
693 | return -EINVAL; | |
bca49d9a | 694 | |
8ca151b5 | 695 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); |
8ca151b5 JB |
696 | if (ret) |
697 | return ret; | |
698 | ||
699 | /* add back binding - XXX refactor? */ | |
700 | binding_cmd.id_and_color = | |
701 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, | |
702 | mvmvif->phy_ctxt->color)); | |
703 | binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD); | |
704 | binding_cmd.phy = | |
705 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, | |
706 | mvmvif->phy_ctxt->color)); | |
707 | binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
708 | mvmvif->color)); | |
709 | for (i = 1; i < MAX_MACS_IN_BINDING; i++) | |
710 | binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID); | |
711 | ||
712 | status = 0; | |
713 | ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD, | |
714 | sizeof(binding_cmd), &binding_cmd, | |
715 | &status); | |
716 | if (ret) { | |
717 | IWL_ERR(mvm, "Failed to add binding: %d\n", ret); | |
718 | return ret; | |
719 | } | |
720 | ||
721 | if (status) { | |
722 | IWL_ERR(mvm, "Binding command failed: %u\n", status); | |
723 | return -EIO; | |
724 | } | |
725 | ||
7a453973 | 726 | ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false); |
8ca151b5 JB |
727 | if (ret) |
728 | return ret; | |
729 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta); | |
730 | ||
3dfd3a97 | 731 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL); |
8ca151b5 JB |
732 | if (ret) |
733 | return ret; | |
734 | ||
735 | /* and some quota */ | |
736 | quota_cmd.quotas[0].id_and_color = | |
737 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, | |
738 | mvmvif->phy_ctxt->color)); | |
9a3daf82 EG |
739 | quota_cmd.quotas[0].quota = cpu_to_le32(IWL_MVM_MAX_QUOTA); |
740 | quota_cmd.quotas[0].max_duration = cpu_to_le32(IWL_MVM_MAX_QUOTA); | |
8ca151b5 JB |
741 | |
742 | for (i = 1; i < MAX_BINDINGS; i++) | |
743 | quota_cmd.quotas[i].id_and_color = cpu_to_le32(FW_CTXT_INVALID); | |
744 | ||
a1022927 | 745 | ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, 0, |
8ca151b5 JB |
746 | sizeof(quota_cmd), "a_cmd); |
747 | if (ret) | |
748 | IWL_ERR(mvm, "Failed to send quota: %d\n", ret); | |
749 | ||
47c8b154 JD |
750 | if (iwl_mvm_is_lar_supported(mvm) && iwl_mvm_init_fw_regd(mvm)) |
751 | IWL_ERR(mvm, "Failed to initialize D3 LAR information\n"); | |
752 | ||
8ca151b5 JB |
753 | return 0; |
754 | } | |
755 | ||
4ac6cb59 JB |
756 | static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm *mvm, |
757 | struct ieee80211_vif *vif) | |
758 | { | |
6d9d32b8 JB |
759 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
760 | struct iwl_nonqos_seq_query_cmd query_cmd = { | |
761 | .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_GET), | |
762 | .mac_id_n_color = | |
763 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
764 | mvmvif->color)), | |
765 | }; | |
4ac6cb59 JB |
766 | struct iwl_host_cmd cmd = { |
767 | .id = NON_QOS_TX_COUNTER_CMD, | |
a1022927 | 768 | .flags = CMD_WANT_SKB, |
4ac6cb59 JB |
769 | }; |
770 | int err; | |
771 | u32 size; | |
772 | ||
3afec639 EG |
773 | cmd.data[0] = &query_cmd; |
774 | cmd.len[0] = sizeof(query_cmd); | |
6d9d32b8 | 775 | |
4ac6cb59 JB |
776 | err = iwl_mvm_send_cmd(mvm, &cmd); |
777 | if (err) | |
778 | return err; | |
779 | ||
65b30348 | 780 | size = iwl_rx_packet_payload_len(cmd.resp_pkt); |
6d9d32b8 | 781 | if (size < sizeof(__le16)) { |
4ac6cb59 | 782 | err = -EINVAL; |
6d9d32b8 JB |
783 | } else { |
784 | err = le16_to_cpup((__le16 *)cmd.resp_pkt->data); | |
3afec639 EG |
785 | /* firmware returns next, not last-used seqno */ |
786 | err = (u16) (err - 0x10); | |
6d9d32b8 | 787 | } |
4ac6cb59 JB |
788 | |
789 | iwl_free_resp(&cmd); | |
790 | return err; | |
791 | } | |
792 | ||
6d9d32b8 JB |
793 | void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm *mvm, struct ieee80211_vif *vif) |
794 | { | |
795 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
796 | struct iwl_nonqos_seq_query_cmd query_cmd = { | |
797 | .get_set_flag = cpu_to_le32(IWL_NONQOS_SEQ_SET), | |
798 | .mac_id_n_color = | |
799 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
800 | mvmvif->color)), | |
801 | .value = cpu_to_le16(mvmvif->seqno), | |
802 | }; | |
803 | ||
804 | /* return if called during restart, not resume from D3 */ | |
805 | if (!mvmvif->seqno_valid) | |
806 | return; | |
807 | ||
808 | mvmvif->seqno_valid = false; | |
809 | ||
a1022927 | 810 | if (iwl_mvm_send_cmd_pdu(mvm, NON_QOS_TX_COUNTER_CMD, 0, |
6d9d32b8 JB |
811 | sizeof(query_cmd), &query_cmd)) |
812 | IWL_ERR(mvm, "failed to set non-QoS seqno\n"); | |
813 | } | |
814 | ||
671b5820 LC |
815 | static int iwl_mvm_switch_to_d3(struct iwl_mvm *mvm) |
816 | { | |
c7d42480 | 817 | iwl_mvm_scan_stop(mvm, IWL_MVM_SCAN_REGULAR, true); |
671b5820 | 818 | |
fcb6b92a | 819 | iwl_mvm_stop_device(mvm); |
671b5820 LC |
820 | /* |
821 | * Set the HW restart bit -- this is mostly true as we're | |
822 | * going to load new firmware and reprogram that, though | |
823 | * the reprogramming is going to be manual to avoid adding | |
824 | * all the MACs that aren't support. | |
825 | * We don't have to clear up everything though because the | |
826 | * reprogramming is manual. When we resume, we'll actually | |
827 | * go through a proper restart sequence again to switch | |
828 | * back to the runtime firmware image. | |
829 | */ | |
830 | set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
831 | ||
9c3deeb5 LC |
832 | /* the fw is reset, so all the keys are cleared */ |
833 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); | |
834 | ||
671b5820 LC |
835 | mvm->ptk_ivlen = 0; |
836 | mvm->ptk_icvlen = 0; | |
837 | mvm->ptk_ivlen = 0; | |
838 | mvm->ptk_icvlen = 0; | |
839 | ||
840 | return iwl_mvm_load_d3_fw(mvm); | |
841 | } | |
842 | ||
671b5820 LC |
843 | static int |
844 | iwl_mvm_get_wowlan_config(struct iwl_mvm *mvm, | |
845 | struct cfg80211_wowlan *wowlan, | |
c8b06a99 | 846 | struct iwl_wowlan_config_cmd *wowlan_config_cmd, |
671b5820 LC |
847 | struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif, |
848 | struct ieee80211_sta *ap_sta) | |
8ca151b5 | 849 | { |
1a95c8df | 850 | int ret; |
9d8ce6af | 851 | struct iwl_mvm_sta *mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta); |
8ca151b5 | 852 | |
c8b06a99 | 853 | /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */ |
8ca151b5 | 854 | |
c8b06a99 | 855 | wowlan_config_cmd->is_11n_connection = |
1a95c8df | 856 | ap_sta->ht_cap.ht_supported; |
70b4c536 | 857 | wowlan_config_cmd->flags = ENABLE_L3_FILTERING | |
32795a88 | 858 | ENABLE_NBNS_FILTERING | ENABLE_DHCP_FILTERING; |
8ca151b5 | 859 | |
4ac6cb59 JB |
860 | /* Query the last used seqno and set it */ |
861 | ret = iwl_mvm_get_last_nonqos_seq(mvm, vif); | |
862 | if (ret < 0) | |
671b5820 | 863 | return ret; |
8ca151b5 | 864 | |
c8b06a99 | 865 | wowlan_config_cmd->non_qos_seq = cpu_to_le16(ret); |
671b5820 | 866 | |
c8b06a99 | 867 | iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta, wowlan_config_cmd); |
8ca151b5 JB |
868 | |
869 | if (wowlan->disconnect) | |
c8b06a99 | 870 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
871 | cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | |
872 | IWL_WOWLAN_WAKEUP_LINK_CHANGE); | |
873 | if (wowlan->magic_pkt) | |
c8b06a99 | 874 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
875 | cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET); |
876 | if (wowlan->gtk_rekey_failure) | |
c8b06a99 | 877 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
878 | cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL); |
879 | if (wowlan->eap_identity_req) | |
c8b06a99 | 880 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
881 | cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ); |
882 | if (wowlan->four_way_handshake) | |
c8b06a99 | 883 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
884 | cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE); |
885 | if (wowlan->n_patterns) | |
c8b06a99 | 886 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
887 | cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH); |
888 | ||
889 | if (wowlan->rfkill_release) | |
c8b06a99 | 890 | wowlan_config_cmd->wakeup_filter |= |
8ca151b5 JB |
891 | cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT); |
892 | ||
f0c2646a JB |
893 | if (wowlan->tcp) { |
894 | /* | |
6039f3e1 JB |
895 | * Set the "link change" (really "link lost") flag as well |
896 | * since that implies losing the TCP connection. | |
f0c2646a | 897 | */ |
c8b06a99 | 898 | wowlan_config_cmd->wakeup_filter |= |
f0c2646a JB |
899 | cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS | |
900 | IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE | | |
901 | IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET | | |
902 | IWL_WOWLAN_WAKEUP_LINK_CHANGE); | |
903 | } | |
904 | ||
671b5820 LC |
905 | return 0; |
906 | } | |
f444eb10 | 907 | |
a3f7ba5c EP |
908 | static void |
909 | iwl_mvm_iter_d0i3_ap_keys(struct iwl_mvm *mvm, | |
910 | struct ieee80211_vif *vif, | |
911 | void (*iter)(struct ieee80211_hw *hw, | |
912 | struct ieee80211_vif *vif, | |
913 | struct ieee80211_sta *sta, | |
914 | struct ieee80211_key_conf *key, | |
915 | void *data), | |
916 | void *data) | |
917 | { | |
918 | struct ieee80211_sta *ap_sta; | |
919 | ||
920 | rcu_read_lock(); | |
921 | ||
922 | ap_sta = rcu_dereference(mvm->fw_id_to_mac_id[mvm->d0i3_ap_sta_id]); | |
923 | if (IS_ERR_OR_NULL(ap_sta)) | |
924 | goto out; | |
925 | ||
926 | ieee80211_iter_keys_rcu(mvm->hw, vif, iter, data); | |
927 | out: | |
928 | rcu_read_unlock(); | |
929 | } | |
930 | ||
ac8ef0ce EP |
931 | int iwl_mvm_wowlan_config_key_params(struct iwl_mvm *mvm, |
932 | struct ieee80211_vif *vif, | |
a3f7ba5c | 933 | bool d0i3, |
ac8ef0ce | 934 | u32 cmd_flags) |
671b5820 LC |
935 | { |
936 | struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {}; | |
937 | struct iwl_wowlan_tkip_params_cmd tkip_cmd = {}; | |
938 | struct wowlan_key_data key_data = { | |
a3f7ba5c | 939 | .configure_keys = !d0i3, |
671b5820 LC |
940 | .use_rsc_tsc = false, |
941 | .tkip = &tkip_cmd, | |
942 | .use_tkip = false, | |
943 | }; | |
ac8ef0ce EP |
944 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); |
945 | int ret; | |
946 | ||
947 | key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL); | |
948 | if (!key_data.rsc_tsc) | |
949 | return -ENOMEM; | |
950 | ||
951 | /* | |
a3f7ba5c EP |
952 | * if we have to configure keys, call ieee80211_iter_keys(), |
953 | * as we need non-atomic context in order to take the | |
954 | * required locks. | |
955 | * for the d0i3 we can't use ieee80211_iter_keys(), as | |
956 | * taking (almost) any mutex might result in deadlock. | |
ac8ef0ce | 957 | */ |
a3f7ba5c EP |
958 | if (!d0i3) { |
959 | /* | |
960 | * Note that currently we don't propagate cmd_flags | |
961 | * to the iterator. In case of key_data.configure_keys, | |
962 | * all the configured commands are SYNC, and | |
963 | * iwl_mvm_wowlan_program_keys() will take care of | |
964 | * locking/unlocking mvm->mutex. | |
965 | */ | |
966 | ieee80211_iter_keys(mvm->hw, vif, | |
967 | iwl_mvm_wowlan_program_keys, | |
968 | &key_data); | |
969 | } else { | |
970 | iwl_mvm_iter_d0i3_ap_keys(mvm, vif, | |
971 | iwl_mvm_wowlan_program_keys, | |
972 | &key_data); | |
973 | } | |
ac8ef0ce EP |
974 | |
975 | if (key_data.error) { | |
976 | ret = -EIO; | |
977 | goto out; | |
978 | } | |
979 | ||
980 | if (key_data.use_rsc_tsc) { | |
981 | ret = iwl_mvm_send_cmd_pdu(mvm, | |
982 | WOWLAN_TSC_RSC_PARAM, cmd_flags, | |
983 | sizeof(*key_data.rsc_tsc), | |
984 | key_data.rsc_tsc); | |
985 | if (ret) | |
986 | goto out; | |
987 | } | |
988 | ||
989 | if (key_data.use_tkip) { | |
990 | ret = iwl_mvm_send_cmd_pdu(mvm, | |
991 | WOWLAN_TKIP_PARAM, | |
992 | cmd_flags, sizeof(tkip_cmd), | |
993 | &tkip_cmd); | |
994 | if (ret) | |
995 | goto out; | |
996 | } | |
997 | ||
a3f7ba5c EP |
998 | /* configure rekey data only if offloaded rekey is supported (d3) */ |
999 | if (mvmvif->rekey_data.valid && !d0i3) { | |
ac8ef0ce EP |
1000 | memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd)); |
1001 | memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck, | |
1002 | NL80211_KCK_LEN); | |
1003 | kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN); | |
1004 | memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek, | |
1005 | NL80211_KEK_LEN); | |
1006 | kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN); | |
1007 | kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr; | |
1008 | ||
1009 | ret = iwl_mvm_send_cmd_pdu(mvm, | |
1010 | WOWLAN_KEK_KCK_MATERIAL, cmd_flags, | |
1011 | sizeof(kek_kck_cmd), | |
1012 | &kek_kck_cmd); | |
1013 | if (ret) | |
1014 | goto out; | |
1015 | } | |
3f50a690 | 1016 | ret = 0; |
ac8ef0ce EP |
1017 | out: |
1018 | kfree(key_data.rsc_tsc); | |
1019 | return ret; | |
1020 | } | |
1021 | ||
1022 | static int | |
1023 | iwl_mvm_wowlan_config(struct iwl_mvm *mvm, | |
1024 | struct cfg80211_wowlan *wowlan, | |
1025 | struct iwl_wowlan_config_cmd *wowlan_config_cmd, | |
1026 | struct ieee80211_vif *vif, struct iwl_mvm_vif *mvmvif, | |
1027 | struct ieee80211_sta *ap_sta) | |
1028 | { | |
671b5820 | 1029 | int ret; |
23ae6128 MG |
1030 | bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, |
1031 | IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); | |
8ca151b5 | 1032 | |
23ae6128 MG |
1033 | if (!unified_image) { |
1034 | ret = iwl_mvm_switch_to_d3(mvm); | |
1035 | if (ret) | |
1036 | return ret; | |
3acc952b | 1037 | |
23ae6128 MG |
1038 | ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta); |
1039 | if (ret) | |
1040 | return ret; | |
1041 | } | |
671b5820 | 1042 | |
8ca151b5 JB |
1043 | if (!iwlwifi_mod_params.sw_crypto) { |
1044 | /* | |
1045 | * This needs to be unlocked due to lock ordering | |
1046 | * constraints. Since we're in the suspend path | |
1047 | * that isn't really a problem though. | |
1048 | */ | |
1049 | mutex_unlock(&mvm->mutex); | |
a3f7ba5c | 1050 | ret = iwl_mvm_wowlan_config_key_params(mvm, vif, false, |
3f50a690 | 1051 | CMD_ASYNC); |
8ca151b5 | 1052 | mutex_lock(&mvm->mutex); |
3f50a690 EP |
1053 | if (ret) |
1054 | return ret; | |
8ca151b5 JB |
1055 | } |
1056 | ||
c8b06a99 EG |
1057 | ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0, |
1058 | sizeof(*wowlan_config_cmd), | |
1059 | wowlan_config_cmd); | |
8ca151b5 | 1060 | if (ret) |
ac8ef0ce | 1061 | return ret; |
8ca151b5 JB |
1062 | |
1063 | ret = iwl_mvm_send_patterns(mvm, wowlan); | |
1064 | if (ret) | |
ac8ef0ce | 1065 | return ret; |
8ca151b5 | 1066 | |
c97dab40 | 1067 | ret = iwl_mvm_send_proto_offload(mvm, vif, false, true, 0); |
8ca151b5 | 1068 | if (ret) |
ac8ef0ce | 1069 | return ret; |
8ca151b5 | 1070 | |
f0c2646a | 1071 | ret = iwl_mvm_send_remote_wake_cfg(mvm, vif, wowlan->tcp); |
671b5820 LC |
1072 | return ret; |
1073 | } | |
1074 | ||
3acc952b LC |
1075 | static int |
1076 | iwl_mvm_netdetect_config(struct iwl_mvm *mvm, | |
1077 | struct cfg80211_wowlan *wowlan, | |
1078 | struct cfg80211_sched_scan_request *nd_config, | |
1079 | struct ieee80211_vif *vif) | |
1080 | { | |
c8b06a99 | 1081 | struct iwl_wowlan_config_cmd wowlan_config_cmd = {}; |
3acc952b | 1082 | int ret; |
23ae6128 MG |
1083 | bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, |
1084 | IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); | |
3acc952b | 1085 | |
23ae6128 MG |
1086 | if (!unified_image) { |
1087 | ret = iwl_mvm_switch_to_d3(mvm); | |
1088 | if (ret) | |
1089 | return ret; | |
1090 | } | |
3acc952b LC |
1091 | |
1092 | /* rfkill release can be either for wowlan or netdetect */ | |
1093 | if (wowlan->rfkill_release) | |
c8b06a99 | 1094 | wowlan_config_cmd.wakeup_filter |= |
3acc952b LC |
1095 | cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT); |
1096 | ||
c8b06a99 EG |
1097 | ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, 0, |
1098 | sizeof(wowlan_config_cmd), | |
1099 | &wowlan_config_cmd); | |
3acc952b LC |
1100 | if (ret) |
1101 | return ret; | |
1102 | ||
19945dfb LC |
1103 | ret = iwl_mvm_sched_scan_start(mvm, vif, nd_config, &mvm->nd_ies, |
1104 | IWL_MVM_SCAN_NETDETECT); | |
d9718da8 LC |
1105 | if (ret) |
1106 | return ret; | |
3acc952b | 1107 | |
8ed4e659 | 1108 | if (WARN_ON(mvm->nd_match_sets || mvm->nd_channels)) |
d9718da8 LC |
1109 | return -EBUSY; |
1110 | ||
8ed4e659 | 1111 | /* save the sched scan matchsets... */ |
d9718da8 LC |
1112 | if (nd_config->n_match_sets) { |
1113 | mvm->nd_match_sets = kmemdup(nd_config->match_sets, | |
1114 | sizeof(*nd_config->match_sets) * | |
1115 | nd_config->n_match_sets, | |
1116 | GFP_KERNEL); | |
1117 | if (mvm->nd_match_sets) | |
1118 | mvm->n_nd_match_sets = nd_config->n_match_sets; | |
1119 | } | |
1120 | ||
8ed4e659 LC |
1121 | /* ...and the sched scan channels for later reporting */ |
1122 | mvm->nd_channels = kmemdup(nd_config->channels, | |
1123 | sizeof(*nd_config->channels) * | |
1124 | nd_config->n_channels, | |
1125 | GFP_KERNEL); | |
1126 | if (mvm->nd_channels) | |
1127 | mvm->n_nd_channels = nd_config->n_channels; | |
1128 | ||
d9718da8 LC |
1129 | return 0; |
1130 | } | |
1131 | ||
1132 | static void iwl_mvm_free_nd(struct iwl_mvm *mvm) | |
1133 | { | |
1134 | kfree(mvm->nd_match_sets); | |
1135 | mvm->nd_match_sets = NULL; | |
1136 | mvm->n_nd_match_sets = 0; | |
8ed4e659 LC |
1137 | kfree(mvm->nd_channels); |
1138 | mvm->nd_channels = NULL; | |
1139 | mvm->n_nd_channels = 0; | |
3acc952b LC |
1140 | } |
1141 | ||
671b5820 LC |
1142 | static int __iwl_mvm_suspend(struct ieee80211_hw *hw, |
1143 | struct cfg80211_wowlan *wowlan, | |
1144 | bool test) | |
1145 | { | |
1146 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
671b5820 LC |
1147 | struct ieee80211_vif *vif = NULL; |
1148 | struct iwl_mvm_vif *mvmvif = NULL; | |
1149 | struct ieee80211_sta *ap_sta = NULL; | |
671b5820 LC |
1150 | struct iwl_d3_manager_config d3_cfg_cmd_data = { |
1151 | /* | |
1152 | * Program the minimum sleep time to 10 seconds, as many | |
1153 | * platforms have issues processing a wakeup signal while | |
1154 | * still being in the process of suspending. | |
1155 | */ | |
1156 | .min_sleep_time = cpu_to_le32(10 * 1000 * 1000), | |
1157 | }; | |
1158 | struct iwl_host_cmd d3_cfg_cmd = { | |
1159 | .id = D3_CONFIG_CMD, | |
1160 | .flags = CMD_WANT_SKB, | |
1161 | .data[0] = &d3_cfg_cmd_data, | |
1162 | .len[0] = sizeof(d3_cfg_cmd_data), | |
1163 | }; | |
1164 | int ret; | |
1165 | int len __maybe_unused; | |
23ae6128 MG |
1166 | bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, |
1167 | IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); | |
671b5820 LC |
1168 | |
1169 | if (!wowlan) { | |
1170 | /* | |
1171 | * mac80211 shouldn't get here, but for D3 test | |
1172 | * it doesn't warrant a warning | |
1173 | */ | |
1174 | WARN_ON(!test); | |
1175 | return -EINVAL; | |
1176 | } | |
1177 | ||
1178 | mutex_lock(&mvm->mutex); | |
1179 | ||
7f549e2c LC |
1180 | vif = iwl_mvm_get_bss_vif(mvm); |
1181 | if (IS_ERR_OR_NULL(vif)) { | |
671b5820 LC |
1182 | ret = 1; |
1183 | goto out_noreset; | |
1184 | } | |
1185 | ||
671b5820 LC |
1186 | mvmvif = iwl_mvm_vif_from_mac80211(vif); |
1187 | ||
3acc952b LC |
1188 | if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) { |
1189 | /* if we're not associated, this must be netdetect */ | |
566f165d | 1190 | if (!wowlan->nd_config) { |
3acc952b LC |
1191 | ret = 1; |
1192 | goto out_noreset; | |
1193 | } | |
1194 | ||
1195 | ret = iwl_mvm_netdetect_config( | |
566f165d | 1196 | mvm, wowlan, wowlan->nd_config, vif); |
3acc952b LC |
1197 | if (ret) |
1198 | goto out; | |
2021a89d LC |
1199 | |
1200 | mvm->net_detect = true; | |
3acc952b | 1201 | } else { |
c8b06a99 | 1202 | struct iwl_wowlan_config_cmd wowlan_config_cmd = {}; |
3acc952b | 1203 | |
1e4d19ca LC |
1204 | ap_sta = rcu_dereference_protected( |
1205 | mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], | |
1206 | lockdep_is_held(&mvm->mutex)); | |
1207 | if (IS_ERR_OR_NULL(ap_sta)) { | |
1208 | ret = -EINVAL; | |
1209 | goto out_noreset; | |
1210 | } | |
671b5820 | 1211 | |
1e4d19ca LC |
1212 | ret = iwl_mvm_get_wowlan_config(mvm, wowlan, &wowlan_config_cmd, |
1213 | vif, mvmvif, ap_sta); | |
1214 | if (ret) | |
1215 | goto out_noreset; | |
1e4d19ca LC |
1216 | ret = iwl_mvm_wowlan_config(mvm, wowlan, &wowlan_config_cmd, |
1217 | vif, mvmvif, ap_sta); | |
1218 | if (ret) | |
3c2f3b20 | 1219 | goto out; |
2021a89d LC |
1220 | |
1221 | mvm->net_detect = false; | |
1e4d19ca | 1222 | } |
f0c2646a | 1223 | |
c1cb92fc | 1224 | ret = iwl_mvm_power_update_device(mvm); |
64b928c4 AB |
1225 | if (ret) |
1226 | goto out; | |
1227 | ||
999609f1 | 1228 | ret = iwl_mvm_power_update_mac(mvm); |
ee1e8422 AB |
1229 | if (ret) |
1230 | goto out; | |
1231 | ||
b0114714 JB |
1232 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
1233 | if (mvm->d3_wake_sysassert) | |
1234 | d3_cfg_cmd_data.wakeup_flags |= | |
1235 | cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR); | |
1236 | #endif | |
1237 | ||
8ca151b5 | 1238 | /* must be last -- this switches firmware state */ |
debff618 | 1239 | ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd); |
8ca151b5 JB |
1240 | if (ret) |
1241 | goto out; | |
debff618 | 1242 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
65b30348 JB |
1243 | len = iwl_rx_packet_payload_len(d3_cfg_cmd.resp_pkt); |
1244 | if (len >= sizeof(u32)) { | |
debff618 JB |
1245 | mvm->d3_test_pme_ptr = |
1246 | le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data); | |
debff618 JB |
1247 | } |
1248 | #endif | |
1249 | iwl_free_resp(&d3_cfg_cmd); | |
8ca151b5 JB |
1250 | |
1251 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
1252 | ||
23ae6128 | 1253 | iwl_trans_d3_suspend(mvm->trans, test, !unified_image); |
8ca151b5 | 1254 | out: |
d9718da8 | 1255 | if (ret < 0) { |
48e67751 | 1256 | iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); |
8ca151b5 | 1257 | ieee80211_restart_hw(mvm->hw); |
d9718da8 LC |
1258 | iwl_mvm_free_nd(mvm); |
1259 | } | |
b70ab727 | 1260 | out_noreset: |
8ca151b5 JB |
1261 | mutex_unlock(&mvm->mutex); |
1262 | ||
1263 | return ret; | |
1264 | } | |
1265 | ||
6735943f EP |
1266 | static int iwl_mvm_enter_d0i3_sync(struct iwl_mvm *mvm) |
1267 | { | |
1268 | struct iwl_notification_wait wait_d3; | |
6eb031d2 | 1269 | static const u16 d3_notif[] = { D3_CONFIG_CMD }; |
6735943f EP |
1270 | int ret; |
1271 | ||
1272 | iwl_init_notification_wait(&mvm->notif_wait, &wait_d3, | |
1273 | d3_notif, ARRAY_SIZE(d3_notif), | |
1274 | NULL, NULL); | |
1275 | ||
1276 | ret = iwl_mvm_enter_d0i3(mvm->hw->priv); | |
1277 | if (ret) | |
1278 | goto remove_notif; | |
1279 | ||
1280 | ret = iwl_wait_notification(&mvm->notif_wait, &wait_d3, HZ); | |
1281 | WARN_ON_ONCE(ret); | |
1282 | return ret; | |
1283 | ||
1284 | remove_notif: | |
1285 | iwl_remove_notification(&mvm->notif_wait, &wait_d3); | |
1286 | return ret; | |
1287 | } | |
1288 | ||
debff618 JB |
1289 | int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) |
1290 | { | |
d15a747f | 1291 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); |
b7282643 | 1292 | struct iwl_trans *trans = mvm->trans; |
c43fe907 EP |
1293 | int ret; |
1294 | ||
cf8c3cff LC |
1295 | /* make sure the d0i3 exit work is not pending */ |
1296 | flush_work(&mvm->d0i3_exit_work); | |
1297 | ||
b7282643 | 1298 | ret = iwl_trans_suspend(trans); |
c43fe907 EP |
1299 | if (ret) |
1300 | return ret; | |
d15a747f | 1301 | |
b7282643 LC |
1302 | if (wowlan->any) { |
1303 | trans->system_pm_mode = IWL_PLAT_PM_MODE_D0I3; | |
1304 | ||
1305 | if (iwl_mvm_enter_d0i3_on_suspend(mvm)) { | |
c43fe907 | 1306 | ret = iwl_mvm_enter_d0i3_sync(mvm); |
6735943f EP |
1307 | |
1308 | if (ret) | |
1309 | return ret; | |
1310 | } | |
1311 | ||
d15a747f EP |
1312 | mutex_lock(&mvm->d0i3_suspend_mutex); |
1313 | __set_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags); | |
1314 | mutex_unlock(&mvm->d0i3_suspend_mutex); | |
6dfb36c8 | 1315 | |
23ae6128 | 1316 | iwl_trans_d3_suspend(trans, false, false); |
6dfb36c8 | 1317 | |
d15a747f EP |
1318 | return 0; |
1319 | } | |
1320 | ||
b7282643 LC |
1321 | trans->system_pm_mode = IWL_PLAT_PM_MODE_D3; |
1322 | ||
debff618 JB |
1323 | return __iwl_mvm_suspend(hw, wowlan, false); |
1324 | } | |
1325 | ||
6d9d32b8 JB |
1326 | /* converted data from the different status responses */ |
1327 | struct iwl_wowlan_status_data { | |
1328 | u16 pattern_number; | |
1329 | u16 qos_seq_ctr[8]; | |
1330 | u32 wakeup_reasons; | |
1331 | u32 wake_packet_length; | |
1332 | u32 wake_packet_bufsize; | |
1333 | const u8 *wake_packet; | |
1334 | }; | |
1335 | ||
7abc4632 JB |
1336 | static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm *mvm, |
1337 | struct ieee80211_vif *vif, | |
6d9d32b8 | 1338 | struct iwl_wowlan_status_data *status) |
9b26b500 | 1339 | { |
7abc4632 | 1340 | struct sk_buff *pkt = NULL; |
9b26b500 JB |
1341 | struct cfg80211_wowlan_wakeup wakeup = { |
1342 | .pattern_idx = -1, | |
1343 | }; | |
1344 | struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; | |
6d9d32b8 | 1345 | u32 reasons = status->wakeup_reasons; |
9b26b500 JB |
1346 | |
1347 | if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) { | |
1348 | wakeup_report = NULL; | |
1349 | goto report; | |
1350 | } | |
1351 | ||
06ae2ad4 DB |
1352 | pm_wakeup_event(mvm->dev, 0); |
1353 | ||
f444eb10 | 1354 | if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET) |
9b26b500 | 1355 | wakeup.magic_pkt = true; |
9b26b500 | 1356 | |
f444eb10 | 1357 | if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN) |
9b26b500 | 1358 | wakeup.pattern_idx = |
6d9d32b8 | 1359 | status->pattern_number; |
9b26b500 JB |
1360 | |
1361 | if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | | |
1362 | IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)) | |
1363 | wakeup.disconnect = true; | |
1364 | ||
f444eb10 | 1365 | if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE) |
9b26b500 | 1366 | wakeup.gtk_rekey_failure = true; |
9b26b500 | 1367 | |
f444eb10 | 1368 | if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) |
9b26b500 | 1369 | wakeup.rfkill_release = true; |
9b26b500 | 1370 | |
f444eb10 | 1371 | if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST) |
9b26b500 | 1372 | wakeup.eap_identity_req = true; |
9b26b500 | 1373 | |
f444eb10 | 1374 | if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE) |
9b26b500 | 1375 | wakeup.four_way_handshake = true; |
9b26b500 | 1376 | |
f0c2646a JB |
1377 | if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS) |
1378 | wakeup.tcp_connlost = true; | |
1379 | ||
1380 | if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE) | |
1381 | wakeup.tcp_nomoretokens = true; | |
1382 | ||
1383 | if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET) | |
1384 | wakeup.tcp_match = true; | |
1385 | ||
9b26b500 | 1386 | if (status->wake_packet_bufsize) { |
6d9d32b8 JB |
1387 | int pktsize = status->wake_packet_bufsize; |
1388 | int pktlen = status->wake_packet_length; | |
f444eb10 JB |
1389 | const u8 *pktdata = status->wake_packet; |
1390 | struct ieee80211_hdr *hdr = (void *)pktdata; | |
1391 | int truncated = pktlen - pktsize; | |
1392 | ||
1393 | /* this would be a firmware bug */ | |
1394 | if (WARN_ON_ONCE(truncated < 0)) | |
1395 | truncated = 0; | |
1396 | ||
1397 | if (ieee80211_is_data(hdr->frame_control)) { | |
1398 | int hdrlen = ieee80211_hdrlen(hdr->frame_control); | |
1399 | int ivlen = 0, icvlen = 4; /* also FCS */ | |
9b26b500 | 1400 | |
9b26b500 JB |
1401 | pkt = alloc_skb(pktsize, GFP_KERNEL); |
1402 | if (!pkt) | |
1403 | goto report; | |
f444eb10 JB |
1404 | |
1405 | memcpy(skb_put(pkt, hdrlen), pktdata, hdrlen); | |
1406 | pktdata += hdrlen; | |
1407 | pktsize -= hdrlen; | |
1408 | ||
1409 | if (ieee80211_has_protected(hdr->frame_control)) { | |
7abc4632 JB |
1410 | /* |
1411 | * This is unlocked and using gtk_i(c)vlen, | |
1412 | * but since everything is under RTNL still | |
1413 | * that's not really a problem - changing | |
1414 | * it would be difficult. | |
1415 | */ | |
f444eb10 JB |
1416 | if (is_multicast_ether_addr(hdr->addr1)) { |
1417 | ivlen = mvm->gtk_ivlen; | |
1418 | icvlen += mvm->gtk_icvlen; | |
1419 | } else { | |
1420 | ivlen = mvm->ptk_ivlen; | |
1421 | icvlen += mvm->ptk_icvlen; | |
1422 | } | |
1423 | } | |
1424 | ||
1425 | /* if truncated, FCS/ICV is (partially) gone */ | |
1426 | if (truncated >= icvlen) { | |
1427 | icvlen = 0; | |
1428 | truncated -= icvlen; | |
1429 | } else { | |
1430 | icvlen -= truncated; | |
1431 | truncated = 0; | |
1432 | } | |
1433 | ||
1434 | pktsize -= ivlen + icvlen; | |
1435 | pktdata += ivlen; | |
1436 | ||
1437 | memcpy(skb_put(pkt, pktsize), pktdata, pktsize); | |
1438 | ||
9b26b500 JB |
1439 | if (ieee80211_data_to_8023(pkt, vif->addr, vif->type)) |
1440 | goto report; | |
1441 | wakeup.packet = pkt->data; | |
1442 | wakeup.packet_present_len = pkt->len; | |
f444eb10 | 1443 | wakeup.packet_len = pkt->len - truncated; |
9b26b500 JB |
1444 | wakeup.packet_80211 = false; |
1445 | } else { | |
f444eb10 JB |
1446 | int fcslen = 4; |
1447 | ||
1448 | if (truncated >= 4) { | |
1449 | truncated -= 4; | |
1450 | fcslen = 0; | |
1451 | } else { | |
1452 | fcslen -= truncated; | |
1453 | truncated = 0; | |
1454 | } | |
1455 | pktsize -= fcslen; | |
9b26b500 JB |
1456 | wakeup.packet = status->wake_packet; |
1457 | wakeup.packet_present_len = pktsize; | |
f444eb10 | 1458 | wakeup.packet_len = pktlen - truncated; |
9b26b500 JB |
1459 | wakeup.packet_80211 = true; |
1460 | } | |
1461 | } | |
1462 | ||
1463 | report: | |
1464 | ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); | |
1465 | kfree_skb(pkt); | |
7abc4632 | 1466 | } |
9b26b500 | 1467 | |
6d9d32b8 JB |
1468 | static void iwl_mvm_aes_sc_to_seq(struct aes_sc *sc, |
1469 | struct ieee80211_key_seq *seq) | |
1470 | { | |
1471 | u64 pn; | |
1472 | ||
1473 | pn = le64_to_cpu(sc->pn); | |
1474 | seq->ccmp.pn[0] = pn >> 40; | |
1475 | seq->ccmp.pn[1] = pn >> 32; | |
1476 | seq->ccmp.pn[2] = pn >> 24; | |
1477 | seq->ccmp.pn[3] = pn >> 16; | |
1478 | seq->ccmp.pn[4] = pn >> 8; | |
1479 | seq->ccmp.pn[5] = pn; | |
1480 | } | |
1481 | ||
1482 | static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc *sc, | |
1483 | struct ieee80211_key_seq *seq) | |
1484 | { | |
1485 | seq->tkip.iv32 = le32_to_cpu(sc->iv32); | |
1486 | seq->tkip.iv16 = le16_to_cpu(sc->iv16); | |
1487 | } | |
1488 | ||
f5e28eac JB |
1489 | static void iwl_mvm_set_aes_rx_seq(struct iwl_mvm *mvm, struct aes_sc *scs, |
1490 | struct ieee80211_sta *sta, | |
6d9d32b8 JB |
1491 | struct ieee80211_key_conf *key) |
1492 | { | |
1493 | int tid; | |
1494 | ||
1495 | BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS); | |
1496 | ||
f5e28eac JB |
1497 | if (sta && iwl_mvm_has_new_rx_api(mvm)) { |
1498 | struct iwl_mvm_sta *mvmsta; | |
1499 | struct iwl_mvm_key_pn *ptk_pn; | |
6d9d32b8 | 1500 | |
f5e28eac JB |
1501 | mvmsta = iwl_mvm_sta_from_mac80211(sta); |
1502 | ||
1503 | ptk_pn = rcu_dereference_protected(mvmsta->ptk_pn[key->keyidx], | |
1504 | lockdep_is_held(&mvm->mutex)); | |
1505 | if (WARN_ON(!ptk_pn)) | |
1506 | return; | |
1507 | ||
1508 | for (tid = 0; tid < IWL_MAX_TID_COUNT; tid++) { | |
1509 | struct ieee80211_key_seq seq = {}; | |
1510 | int i; | |
1511 | ||
1512 | iwl_mvm_aes_sc_to_seq(&scs[tid], &seq); | |
1513 | ieee80211_set_key_rx_seq(key, tid, &seq); | |
1514 | for (i = 1; i < mvm->trans->num_rx_queues; i++) | |
1515 | memcpy(ptk_pn->q[i].pn[tid], | |
1516 | seq.ccmp.pn, IEEE80211_CCMP_PN_LEN); | |
1517 | } | |
1518 | } else { | |
1519 | for (tid = 0; tid < IWL_NUM_RSC; tid++) { | |
1520 | struct ieee80211_key_seq seq = {}; | |
1521 | ||
1522 | iwl_mvm_aes_sc_to_seq(&scs[tid], &seq); | |
1523 | ieee80211_set_key_rx_seq(key, tid, &seq); | |
1524 | } | |
6d9d32b8 JB |
1525 | } |
1526 | } | |
1527 | ||
1528 | static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc *scs, | |
1529 | struct ieee80211_key_conf *key) | |
1530 | { | |
1531 | int tid; | |
1532 | ||
1533 | BUILD_BUG_ON(IWL_NUM_RSC != IEEE80211_NUM_TIDS); | |
1534 | ||
1535 | for (tid = 0; tid < IWL_NUM_RSC; tid++) { | |
1536 | struct ieee80211_key_seq seq = {}; | |
1537 | ||
1538 | iwl_mvm_tkip_sc_to_seq(&scs[tid], &seq); | |
1539 | ieee80211_set_key_rx_seq(key, tid, &seq); | |
1540 | } | |
1541 | } | |
1542 | ||
f5e28eac JB |
1543 | static void iwl_mvm_set_key_rx_seq(struct iwl_mvm *mvm, |
1544 | struct ieee80211_key_conf *key, | |
3afec639 | 1545 | struct iwl_wowlan_status *status) |
6d9d32b8 JB |
1546 | { |
1547 | union iwl_all_tsc_rsc *rsc = &status->gtk.rsc.all_tsc_rsc; | |
1548 | ||
1549 | switch (key->cipher) { | |
1550 | case WLAN_CIPHER_SUITE_CCMP: | |
f5e28eac | 1551 | iwl_mvm_set_aes_rx_seq(mvm, rsc->aes.multicast_rsc, NULL, key); |
6d9d32b8 JB |
1552 | break; |
1553 | case WLAN_CIPHER_SUITE_TKIP: | |
1554 | iwl_mvm_set_tkip_rx_seq(rsc->tkip.multicast_rsc, key); | |
1555 | break; | |
1556 | default: | |
1557 | WARN_ON(1); | |
1558 | } | |
1559 | } | |
1560 | ||
1561 | struct iwl_mvm_d3_gtk_iter_data { | |
f5e28eac | 1562 | struct iwl_mvm *mvm; |
3afec639 | 1563 | struct iwl_wowlan_status *status; |
6d9d32b8 JB |
1564 | void *last_gtk; |
1565 | u32 cipher; | |
1566 | bool find_phase, unhandled_cipher; | |
1567 | int num_keys; | |
1568 | }; | |
1569 | ||
59fd4bf6 | 1570 | static void iwl_mvm_d3_update_keys(struct ieee80211_hw *hw, |
6d9d32b8 JB |
1571 | struct ieee80211_vif *vif, |
1572 | struct ieee80211_sta *sta, | |
1573 | struct ieee80211_key_conf *key, | |
1574 | void *_data) | |
1575 | { | |
1576 | struct iwl_mvm_d3_gtk_iter_data *data = _data; | |
1577 | ||
1578 | if (data->unhandled_cipher) | |
1579 | return; | |
1580 | ||
1581 | switch (key->cipher) { | |
1582 | case WLAN_CIPHER_SUITE_WEP40: | |
1583 | case WLAN_CIPHER_SUITE_WEP104: | |
1584 | /* ignore WEP completely, nothing to do */ | |
1585 | return; | |
1586 | case WLAN_CIPHER_SUITE_CCMP: | |
1587 | case WLAN_CIPHER_SUITE_TKIP: | |
1588 | /* we support these */ | |
1589 | break; | |
1590 | default: | |
1591 | /* everything else (even CMAC for MFP) - disconnect from AP */ | |
1592 | data->unhandled_cipher = true; | |
1593 | return; | |
1594 | } | |
1595 | ||
1596 | data->num_keys++; | |
1597 | ||
1598 | /* | |
1599 | * pairwise key - update sequence counters only; | |
1600 | * note that this assumes no TDLS sessions are active | |
1601 | */ | |
1602 | if (sta) { | |
1603 | struct ieee80211_key_seq seq = {}; | |
1604 | union iwl_all_tsc_rsc *sc = &data->status->gtk.rsc.all_tsc_rsc; | |
1605 | ||
1606 | if (data->find_phase) | |
1607 | return; | |
1608 | ||
1609 | switch (key->cipher) { | |
1610 | case WLAN_CIPHER_SUITE_CCMP: | |
f5e28eac JB |
1611 | iwl_mvm_set_aes_rx_seq(data->mvm, sc->aes.unicast_rsc, |
1612 | sta, key); | |
6645d5e4 | 1613 | atomic64_set(&key->tx_pn, le64_to_cpu(sc->aes.tsc.pn)); |
6d9d32b8 JB |
1614 | break; |
1615 | case WLAN_CIPHER_SUITE_TKIP: | |
1616 | iwl_mvm_tkip_sc_to_seq(&sc->tkip.tsc, &seq); | |
1617 | iwl_mvm_set_tkip_rx_seq(sc->tkip.unicast_rsc, key); | |
1ad4f639 EP |
1618 | atomic64_set(&key->tx_pn, |
1619 | (u64)seq.tkip.iv16 | | |
1620 | ((u64)seq.tkip.iv32 << 16)); | |
6d9d32b8 JB |
1621 | break; |
1622 | } | |
6d9d32b8 JB |
1623 | |
1624 | /* that's it for this key */ | |
1625 | return; | |
1626 | } | |
1627 | ||
1628 | if (data->find_phase) { | |
1629 | data->last_gtk = key; | |
1630 | data->cipher = key->cipher; | |
1631 | return; | |
1632 | } | |
1633 | ||
1634 | if (data->status->num_of_gtk_rekeys) | |
1635 | ieee80211_remove_key(key); | |
1636 | else if (data->last_gtk == key) | |
f5e28eac | 1637 | iwl_mvm_set_key_rx_seq(data->mvm, key, data->status); |
6d9d32b8 JB |
1638 | } |
1639 | ||
1640 | static bool iwl_mvm_setup_connection_keep(struct iwl_mvm *mvm, | |
1641 | struct ieee80211_vif *vif, | |
3afec639 | 1642 | struct iwl_wowlan_status *status) |
6d9d32b8 JB |
1643 | { |
1644 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
1645 | struct iwl_mvm_d3_gtk_iter_data gtkdata = { | |
f5e28eac | 1646 | .mvm = mvm, |
6d9d32b8 JB |
1647 | .status = status, |
1648 | }; | |
431591cc EP |
1649 | u32 disconnection_reasons = |
1650 | IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | | |
1651 | IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH; | |
6d9d32b8 JB |
1652 | |
1653 | if (!status || !vif->bss_conf.bssid) | |
1654 | return false; | |
1655 | ||
431591cc EP |
1656 | if (le32_to_cpu(status->wakeup_reasons) & disconnection_reasons) |
1657 | return false; | |
1658 | ||
6d9d32b8 JB |
1659 | /* find last GTK that we used initially, if any */ |
1660 | gtkdata.find_phase = true; | |
1661 | ieee80211_iter_keys(mvm->hw, vif, | |
59fd4bf6 | 1662 | iwl_mvm_d3_update_keys, >kdata); |
6d9d32b8 JB |
1663 | /* not trying to keep connections with MFP/unhandled ciphers */ |
1664 | if (gtkdata.unhandled_cipher) | |
1665 | return false; | |
1666 | if (!gtkdata.num_keys) | |
cfa88893 | 1667 | goto out; |
6d9d32b8 JB |
1668 | if (!gtkdata.last_gtk) |
1669 | return false; | |
1670 | ||
1671 | /* | |
1672 | * invalidate all other GTKs that might still exist and update | |
1673 | * the one that we used | |
1674 | */ | |
1675 | gtkdata.find_phase = false; | |
1676 | ieee80211_iter_keys(mvm->hw, vif, | |
59fd4bf6 | 1677 | iwl_mvm_d3_update_keys, >kdata); |
6d9d32b8 JB |
1678 | |
1679 | if (status->num_of_gtk_rekeys) { | |
1680 | struct ieee80211_key_conf *key; | |
1681 | struct { | |
1682 | struct ieee80211_key_conf conf; | |
1683 | u8 key[32]; | |
1684 | } conf = { | |
1685 | .conf.cipher = gtkdata.cipher, | |
1686 | .conf.keyidx = status->gtk.key_index, | |
1687 | }; | |
1688 | ||
1689 | switch (gtkdata.cipher) { | |
1690 | case WLAN_CIPHER_SUITE_CCMP: | |
1691 | conf.conf.keylen = WLAN_KEY_LEN_CCMP; | |
1692 | memcpy(conf.conf.key, status->gtk.decrypt_key, | |
1693 | WLAN_KEY_LEN_CCMP); | |
1694 | break; | |
1695 | case WLAN_CIPHER_SUITE_TKIP: | |
1696 | conf.conf.keylen = WLAN_KEY_LEN_TKIP; | |
1697 | memcpy(conf.conf.key, status->gtk.decrypt_key, 16); | |
1698 | /* leave TX MIC key zeroed, we don't use it anyway */ | |
1699 | memcpy(conf.conf.key + | |
1700 | NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY, | |
1701 | status->gtk.tkip_mic_key, 8); | |
1702 | break; | |
1703 | } | |
1704 | ||
1705 | key = ieee80211_gtk_rekey_add(vif, &conf.conf); | |
1706 | if (IS_ERR(key)) | |
1707 | return false; | |
f5e28eac | 1708 | iwl_mvm_set_key_rx_seq(mvm, key, status); |
6d9d32b8 JB |
1709 | } |
1710 | ||
1711 | if (status->num_of_gtk_rekeys) { | |
1712 | __be64 replay_ctr = | |
1713 | cpu_to_be64(le64_to_cpu(status->replay_ctr)); | |
1714 | ieee80211_gtk_rekey_notify(vif, vif->bss_conf.bssid, | |
1715 | (void *)&replay_ctr, GFP_KERNEL); | |
1716 | } | |
1717 | ||
cfa88893 | 1718 | out: |
6d9d32b8 JB |
1719 | mvmvif->seqno_valid = true; |
1720 | /* +0x10 because the set API expects next-to-use, not last-used */ | |
1721 | mvmvif->seqno = le16_to_cpu(status->non_qos_seq_ctr) + 0x10; | |
1722 | ||
1723 | return true; | |
1724 | } | |
1725 | ||
ec12f457 LC |
1726 | static struct iwl_wowlan_status * |
1727 | iwl_mvm_get_wakeup_status(struct iwl_mvm *mvm, struct ieee80211_vif *vif) | |
7abc4632 JB |
1728 | { |
1729 | u32 base = mvm->error_event_table; | |
1730 | struct error_table_start { | |
1731 | /* cf. struct iwl_error_event_table */ | |
1732 | u32 valid; | |
1733 | u32 error_id; | |
1734 | } err_info; | |
1735 | struct iwl_host_cmd cmd = { | |
1736 | .id = WOWLAN_GET_STATUSES, | |
a1022927 | 1737 | .flags = CMD_WANT_SKB, |
7abc4632 | 1738 | }; |
ec12f457 LC |
1739 | struct iwl_wowlan_status *status, *fw_status; |
1740 | int ret, len, status_size; | |
7abc4632 JB |
1741 | |
1742 | iwl_trans_read_mem_bytes(mvm->trans, base, | |
1743 | &err_info, sizeof(err_info)); | |
1744 | ||
1745 | if (err_info.valid) { | |
ec12f457 LC |
1746 | IWL_INFO(mvm, "error table is valid (%d) with error (%d)\n", |
1747 | err_info.valid, err_info.error_id); | |
7abc4632 JB |
1748 | if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) { |
1749 | struct cfg80211_wowlan_wakeup wakeup = { | |
1750 | .rfkill_release = true, | |
1751 | }; | |
1752 | ieee80211_report_wowlan_wakeup(vif, &wakeup, | |
1753 | GFP_KERNEL); | |
1754 | } | |
ec12f457 | 1755 | return ERR_PTR(-EIO); |
7abc4632 JB |
1756 | } |
1757 | ||
1758 | /* only for tracing for now */ | |
a1022927 | 1759 | ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, 0, 0, NULL); |
7abc4632 JB |
1760 | if (ret) |
1761 | IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret); | |
1762 | ||
1763 | ret = iwl_mvm_send_cmd(mvm, &cmd); | |
1764 | if (ret) { | |
1765 | IWL_ERR(mvm, "failed to query status (%d)\n", ret); | |
ec12f457 | 1766 | return ERR_PTR(ret); |
7abc4632 JB |
1767 | } |
1768 | ||
1769 | /* RF-kill already asserted again... */ | |
ec12f457 | 1770 | if (!cmd.resp_pkt) { |
e111e968 | 1771 | fw_status = ERR_PTR(-ERFKILL); |
ec12f457 LC |
1772 | goto out_free_resp; |
1773 | } | |
7abc4632 | 1774 | |
3afec639 | 1775 | status_size = sizeof(*fw_status); |
6d9d32b8 | 1776 | |
65b30348 JB |
1777 | len = iwl_rx_packet_payload_len(cmd.resp_pkt); |
1778 | if (len < status_size) { | |
7abc4632 | 1779 | IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); |
e111e968 | 1780 | fw_status = ERR_PTR(-EIO); |
ec12f457 LC |
1781 | goto out_free_resp; |
1782 | } | |
1783 | ||
1784 | status = (void *)cmd.resp_pkt->data; | |
1785 | if (len != (status_size + | |
1786 | ALIGN(le32_to_cpu(status->wake_packet_bufsize), 4))) { | |
1787 | IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); | |
e111e968 | 1788 | fw_status = ERR_PTR(-EIO); |
7abc4632 JB |
1789 | goto out_free_resp; |
1790 | } | |
1791 | ||
ec12f457 LC |
1792 | fw_status = kmemdup(status, len, GFP_KERNEL); |
1793 | ||
1794 | out_free_resp: | |
1795 | iwl_free_resp(&cmd); | |
e111e968 | 1796 | return fw_status; |
ec12f457 LC |
1797 | } |
1798 | ||
1799 | /* releases the MVM mutex */ | |
1800 | static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm, | |
1801 | struct ieee80211_vif *vif) | |
1802 | { | |
1803 | struct iwl_wowlan_status_data status; | |
1804 | struct iwl_wowlan_status *fw_status; | |
1805 | int i; | |
1806 | bool keep; | |
1807 | struct ieee80211_sta *ap_sta; | |
1808 | struct iwl_mvm_sta *mvm_ap_sta; | |
1809 | ||
1810 | fw_status = iwl_mvm_get_wakeup_status(mvm, vif); | |
1811 | if (IS_ERR_OR_NULL(fw_status)) | |
1812 | goto out_unlock; | |
3afec639 EG |
1813 | |
1814 | status.pattern_number = le16_to_cpu(fw_status->pattern_number); | |
1815 | for (i = 0; i < 8; i++) | |
1816 | status.qos_seq_ctr[i] = | |
1817 | le16_to_cpu(fw_status->qos_seq_ctr[i]); | |
1818 | status.wakeup_reasons = le32_to_cpu(fw_status->wakeup_reasons); | |
1819 | status.wake_packet_length = | |
1820 | le32_to_cpu(fw_status->wake_packet_length); | |
1821 | status.wake_packet_bufsize = | |
1822 | le32_to_cpu(fw_status->wake_packet_bufsize); | |
1823 | status.wake_packet = fw_status->wake_packet; | |
7abc4632 | 1824 | |
6d9d32b8 JB |
1825 | /* still at hard-coded place 0 for D3 image */ |
1826 | ap_sta = rcu_dereference_protected( | |
1827 | mvm->fw_id_to_mac_id[0], | |
1828 | lockdep_is_held(&mvm->mutex)); | |
1829 | if (IS_ERR_OR_NULL(ap_sta)) | |
ec12f457 | 1830 | goto out_free; |
6d9d32b8 | 1831 | |
9d8ce6af | 1832 | mvm_ap_sta = iwl_mvm_sta_from_mac80211(ap_sta); |
6d9d32b8 JB |
1833 | for (i = 0; i < IWL_MAX_TID_COUNT; i++) { |
1834 | u16 seq = status.qos_seq_ctr[i]; | |
1835 | /* firmware stores last-used value, we store next value */ | |
1836 | seq += 0x10; | |
1837 | mvm_ap_sta->tid_data[i].seq_number = seq; | |
1838 | } | |
1839 | ||
7abc4632 JB |
1840 | /* now we have all the data we need, unlock to avoid mac80211 issues */ |
1841 | mutex_unlock(&mvm->mutex); | |
1842 | ||
6d9d32b8 JB |
1843 | iwl_mvm_report_wakeup_reasons(mvm, vif, &status); |
1844 | ||
3afec639 | 1845 | keep = iwl_mvm_setup_connection_keep(mvm, vif, fw_status); |
6d9d32b8 | 1846 | |
ec12f457 | 1847 | kfree(fw_status); |
6d9d32b8 | 1848 | return keep; |
7abc4632 | 1849 | |
ec12f457 LC |
1850 | out_free: |
1851 | kfree(fw_status); | |
1852 | out_unlock: | |
7abc4632 | 1853 | mutex_unlock(&mvm->mutex); |
6d9d32b8 | 1854 | return false; |
9b26b500 JB |
1855 | } |
1856 | ||
a3f7ba5c EP |
1857 | void iwl_mvm_d0i3_update_keys(struct iwl_mvm *mvm, |
1858 | struct ieee80211_vif *vif, | |
1859 | struct iwl_wowlan_status *status) | |
1860 | { | |
1861 | struct iwl_mvm_d3_gtk_iter_data gtkdata = { | |
0eb1c968 | 1862 | .mvm = mvm, |
a3f7ba5c EP |
1863 | .status = status, |
1864 | }; | |
1865 | ||
1866 | /* | |
1867 | * rekey handling requires taking locks that can't be taken now. | |
1868 | * however, d0i3 doesn't offload rekey, so we're fine. | |
1869 | */ | |
1870 | if (WARN_ON_ONCE(status->num_of_gtk_rekeys)) | |
1871 | return; | |
1872 | ||
1873 | /* find last GTK that we used initially, if any */ | |
1874 | gtkdata.find_phase = true; | |
1875 | iwl_mvm_iter_d0i3_ap_keys(mvm, vif, iwl_mvm_d3_update_keys, >kdata); | |
1876 | ||
1877 | gtkdata.find_phase = false; | |
1878 | iwl_mvm_iter_d0i3_ap_keys(mvm, vif, iwl_mvm_d3_update_keys, >kdata); | |
1879 | } | |
1880 | ||
8ed4e659 LC |
1881 | struct iwl_mvm_nd_query_results { |
1882 | u32 matched_profiles; | |
1883 | struct iwl_scan_offload_profile_match matches[IWL_SCAN_MAX_PROFILES]; | |
1884 | }; | |
1885 | ||
1886 | static int | |
1887 | iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm, | |
1888 | struct iwl_mvm_nd_query_results *results) | |
b04998f3 LC |
1889 | { |
1890 | struct iwl_scan_offload_profiles_query *query; | |
1891 | struct iwl_host_cmd cmd = { | |
1892 | .id = SCAN_OFFLOAD_PROFILES_QUERY_CMD, | |
1893 | .flags = CMD_WANT_SKB, | |
1894 | }; | |
1895 | int ret, len; | |
1896 | ||
1897 | ret = iwl_mvm_send_cmd(mvm, &cmd); | |
1898 | if (ret) { | |
1899 | IWL_ERR(mvm, "failed to query matched profiles (%d)\n", ret); | |
8ed4e659 | 1900 | return ret; |
b04998f3 LC |
1901 | } |
1902 | ||
1903 | /* RF-kill already asserted again... */ | |
8ed4e659 LC |
1904 | if (!cmd.resp_pkt) { |
1905 | ret = -ERFKILL; | |
b04998f3 | 1906 | goto out_free_resp; |
8ed4e659 | 1907 | } |
b04998f3 LC |
1908 | |
1909 | len = iwl_rx_packet_payload_len(cmd.resp_pkt); | |
1910 | if (len < sizeof(*query)) { | |
1911 | IWL_ERR(mvm, "Invalid scan offload profiles query response!\n"); | |
8ed4e659 | 1912 | ret = -EIO; |
b04998f3 LC |
1913 | goto out_free_resp; |
1914 | } | |
1915 | ||
1916 | query = (void *)cmd.resp_pkt->data; | |
1917 | ||
8ed4e659 LC |
1918 | results->matched_profiles = le32_to_cpu(query->matched_profiles); |
1919 | memcpy(results->matches, query->matches, sizeof(results->matches)); | |
b04998f3 | 1920 | |
6bbd5521 | 1921 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
484b3d13 LC |
1922 | mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done); |
1923 | #endif | |
1924 | ||
b04998f3 LC |
1925 | out_free_resp: |
1926 | iwl_free_resp(&cmd); | |
1927 | return ret; | |
1928 | } | |
1929 | ||
2021a89d LC |
1930 | static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm, |
1931 | struct ieee80211_vif *vif) | |
1932 | { | |
d9718da8 | 1933 | struct cfg80211_wowlan_nd_info *net_detect = NULL; |
2021a89d LC |
1934 | struct cfg80211_wowlan_wakeup wakeup = { |
1935 | .pattern_idx = -1, | |
1936 | }; | |
1937 | struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; | |
8ed4e659 | 1938 | struct iwl_mvm_nd_query_results query; |
2021a89d | 1939 | struct iwl_wowlan_status *fw_status; |
d9718da8 | 1940 | unsigned long matched_profiles; |
2021a89d | 1941 | u32 reasons = 0; |
8ed4e659 | 1942 | int i, j, n_matches, ret; |
2021a89d LC |
1943 | |
1944 | fw_status = iwl_mvm_get_wakeup_status(mvm, vif); | |
2fc863a5 | 1945 | if (!IS_ERR_OR_NULL(fw_status)) { |
2021a89d | 1946 | reasons = le32_to_cpu(fw_status->wakeup_reasons); |
2fc863a5 HD |
1947 | kfree(fw_status); |
1948 | } | |
2021a89d LC |
1949 | |
1950 | if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) | |
1951 | wakeup.rfkill_release = true; | |
1952 | ||
b04998f3 LC |
1953 | if (reasons != IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) |
1954 | goto out; | |
1955 | ||
8ed4e659 LC |
1956 | ret = iwl_mvm_netdetect_query_results(mvm, &query); |
1957 | if (ret || !query.matched_profiles) { | |
2021a89d | 1958 | wakeup_report = NULL; |
b04998f3 | 1959 | goto out; |
2021a89d LC |
1960 | } |
1961 | ||
8ed4e659 | 1962 | matched_profiles = query.matched_profiles; |
d9718da8 LC |
1963 | if (mvm->n_nd_match_sets) { |
1964 | n_matches = hweight_long(matched_profiles); | |
1965 | } else { | |
1966 | IWL_ERR(mvm, "no net detect match information available\n"); | |
1967 | n_matches = 0; | |
1968 | } | |
1969 | ||
1970 | net_detect = kzalloc(sizeof(*net_detect) + | |
1971 | (n_matches * sizeof(net_detect->matches[0])), | |
1972 | GFP_KERNEL); | |
1973 | if (!net_detect || !n_matches) | |
1974 | goto out_report_nd; | |
1975 | ||
1976 | for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) { | |
8ed4e659 | 1977 | struct iwl_scan_offload_profile_match *fw_match; |
d9718da8 | 1978 | struct cfg80211_wowlan_nd_match *match; |
ae90c2e5 | 1979 | int idx, n_channels = 0; |
8ed4e659 LC |
1980 | |
1981 | fw_match = &query.matches[i]; | |
1982 | ||
1983 | for (j = 0; j < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; j++) | |
1984 | n_channels += hweight8(fw_match->matching_channels[j]); | |
d9718da8 | 1985 | |
8ed4e659 LC |
1986 | match = kzalloc(sizeof(*match) + |
1987 | (n_channels * sizeof(*match->channels)), | |
1988 | GFP_KERNEL); | |
d9718da8 LC |
1989 | if (!match) |
1990 | goto out_report_nd; | |
1991 | ||
8ed4e659 LC |
1992 | net_detect->matches[net_detect->n_matches++] = match; |
1993 | ||
ae90c2e5 LC |
1994 | /* We inverted the order of the SSIDs in the scan |
1995 | * request, so invert the index here. | |
1996 | */ | |
1997 | idx = mvm->n_nd_match_sets - i - 1; | |
1998 | match->ssid.ssid_len = mvm->nd_match_sets[idx].ssid.ssid_len; | |
1999 | memcpy(match->ssid.ssid, mvm->nd_match_sets[idx].ssid.ssid, | |
d9718da8 LC |
2000 | match->ssid.ssid_len); |
2001 | ||
8ed4e659 LC |
2002 | if (mvm->n_nd_channels < n_channels) |
2003 | continue; | |
2004 | ||
2005 | for (j = 0; j < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; j++) | |
2006 | if (fw_match->matching_channels[j / 8] & (BIT(j % 8))) | |
2007 | match->channels[match->n_channels++] = | |
2008 | mvm->nd_channels[j]->center_freq; | |
d9718da8 LC |
2009 | } |
2010 | ||
2011 | out_report_nd: | |
2012 | wakeup.net_detect = net_detect; | |
b04998f3 | 2013 | out: |
d9718da8 LC |
2014 | iwl_mvm_free_nd(mvm); |
2015 | ||
2021a89d LC |
2016 | mutex_unlock(&mvm->mutex); |
2017 | ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); | |
d9718da8 LC |
2018 | |
2019 | if (net_detect) { | |
2020 | for (i = 0; i < net_detect->n_matches; i++) | |
2021 | kfree(net_detect->matches[i]); | |
2022 | kfree(net_detect); | |
2023 | } | |
2021a89d LC |
2024 | } |
2025 | ||
afc66bb7 JB |
2026 | static void iwl_mvm_read_d3_sram(struct iwl_mvm *mvm) |
2027 | { | |
2028 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
2029 | const struct fw_img *img = &mvm->fw->img[IWL_UCODE_WOWLAN]; | |
2030 | u32 len = img->sec[IWL_UCODE_SECTION_DATA].len; | |
2031 | u32 offs = img->sec[IWL_UCODE_SECTION_DATA].offset; | |
2032 | ||
2033 | if (!mvm->store_d3_resume_sram) | |
2034 | return; | |
2035 | ||
2036 | if (!mvm->d3_resume_sram) { | |
2037 | mvm->d3_resume_sram = kzalloc(len, GFP_KERNEL); | |
2038 | if (!mvm->d3_resume_sram) | |
2039 | return; | |
2040 | } | |
2041 | ||
2042 | iwl_trans_read_mem_bytes(mvm->trans, offs, mvm->d3_resume_sram, len); | |
2043 | #endif | |
2044 | } | |
2045 | ||
6d9d32b8 JB |
2046 | static void iwl_mvm_d3_disconnect_iter(void *data, u8 *mac, |
2047 | struct ieee80211_vif *vif) | |
2048 | { | |
2049 | /* skip the one we keep connection on */ | |
2050 | if (data == vif) | |
2051 | return; | |
2052 | ||
2053 | if (vif->type == NL80211_IFTYPE_STATION) | |
2054 | ieee80211_resume_disconnect(vif); | |
2055 | } | |
2056 | ||
debff618 | 2057 | static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test) |
8ca151b5 | 2058 | { |
8ca151b5 | 2059 | struct ieee80211_vif *vif = NULL; |
23ae6128 | 2060 | int ret = 1; |
8ca151b5 | 2061 | enum iwl_d3_status d3_status; |
6d9d32b8 | 2062 | bool keep = false; |
23ae6128 MG |
2063 | bool unified_image = fw_has_capa(&mvm->fw->ucode_capa, |
2064 | IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG); | |
2065 | ||
2066 | u32 flags = CMD_ASYNC | CMD_HIGH_PRIO | CMD_SEND_IN_IDLE | | |
2067 | CMD_WAKE_UP_TRANS; | |
8ca151b5 JB |
2068 | |
2069 | mutex_lock(&mvm->mutex); | |
2070 | ||
2071 | /* get the BSS vif pointer again */ | |
7f549e2c LC |
2072 | vif = iwl_mvm_get_bss_vif(mvm); |
2073 | if (IS_ERR_OR_NULL(vif)) | |
a500e469 | 2074 | goto err; |
8ca151b5 | 2075 | |
23ae6128 | 2076 | ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test, !unified_image); |
8ca151b5 | 2077 | if (ret) |
a500e469 | 2078 | goto err; |
8ca151b5 JB |
2079 | |
2080 | if (d3_status != IWL_D3_STATUS_ALIVE) { | |
2081 | IWL_INFO(mvm, "Device was reset during suspend\n"); | |
a500e469 | 2082 | goto err; |
8ca151b5 JB |
2083 | } |
2084 | ||
afc66bb7 JB |
2085 | /* query SRAM first in case we want event logging */ |
2086 | iwl_mvm_read_d3_sram(mvm); | |
2087 | ||
47c8b154 JD |
2088 | /* |
2089 | * Query the current location and source from the D3 firmware so we | |
2090 | * can play it back when we re-intiailize the D0 firmware | |
2091 | */ | |
2092 | iwl_mvm_update_changed_regdom(mvm); | |
2093 | ||
2021a89d LC |
2094 | if (mvm->net_detect) { |
2095 | iwl_mvm_query_netdetect_reasons(mvm, vif); | |
e0ede177 LC |
2096 | /* has unlocked the mutex, so skip that */ |
2097 | goto out; | |
2021a89d LC |
2098 | } else { |
2099 | keep = iwl_mvm_query_wakeup_reasons(mvm, vif); | |
78c9df66 | 2100 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
2021a89d LC |
2101 | if (keep) |
2102 | mvm->keep_vif = vif; | |
0c2ae049 | 2103 | #endif |
e0ede177 LC |
2104 | /* has unlocked the mutex, so skip that */ |
2105 | goto out_iterate; | |
2021a89d | 2106 | } |
8ca151b5 | 2107 | |
a500e469 LC |
2108 | err: |
2109 | iwl_mvm_free_nd(mvm); | |
8ca151b5 JB |
2110 | mutex_unlock(&mvm->mutex); |
2111 | ||
e0ede177 | 2112 | out_iterate: |
6d9d32b8 JB |
2113 | if (!test) |
2114 | ieee80211_iterate_active_interfaces_rtnl(mvm->hw, | |
2115 | IEEE80211_IFACE_ITER_NORMAL, | |
2116 | iwl_mvm_d3_disconnect_iter, keep ? vif : NULL); | |
8ca151b5 | 2117 | |
e0ede177 | 2118 | out: |
23ae6128 MG |
2119 | if (unified_image && !ret) { |
2120 | ret = iwl_mvm_send_cmd_pdu(mvm, D0I3_END_CMD, flags, 0, NULL); | |
2121 | if (!ret) /* D3 ended successfully - no need to reset device */ | |
2122 | return 0; | |
2123 | } | |
2124 | ||
2125 | /* | |
2126 | * Reconfigure the device in one of the following cases: | |
2127 | * 1. We are not using a unified image | |
2128 | * 2. We are using a unified image but had an error while exiting D3 | |
2129 | */ | |
8ca151b5 | 2130 | set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); |
58629d9d | 2131 | set_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status); |
23ae6128 MG |
2132 | /* |
2133 | * When switching images we return 1, which causes mac80211 | |
2134 | * to do a reconfig with IEEE80211_RECONFIG_TYPE_RESTART. | |
2135 | * This type of reconfig calls iwl_mvm_restart_complete(), | |
2136 | * where we unref the IWL_MVM_REF_UCODE_DOWN, so we need | |
2137 | * to take the reference here. | |
dcfc7fb1 LC |
2138 | */ |
2139 | iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN); | |
23ae6128 | 2140 | |
8ca151b5 JB |
2141 | return 1; |
2142 | } | |
2143 | ||
2d42801b | 2144 | static int iwl_mvm_resume_d3(struct iwl_mvm *mvm) |
debff618 | 2145 | { |
2d42801b EP |
2146 | iwl_trans_resume(mvm->trans); |
2147 | ||
2148 | return __iwl_mvm_resume(mvm, false); | |
2149 | } | |
2150 | ||
2151 | static int iwl_mvm_resume_d0i3(struct iwl_mvm *mvm) | |
2152 | { | |
2153 | bool exit_now; | |
6dfb36c8 | 2154 | enum iwl_d3_status d3_status; |
b7282643 | 2155 | struct iwl_trans *trans = mvm->trans; |
6dfb36c8 | 2156 | |
23ae6128 | 2157 | iwl_trans_d3_resume(trans, &d3_status, false, false); |
2d42801b EP |
2158 | |
2159 | /* | |
2160 | * make sure to clear D0I3_DEFER_WAKEUP before | |
2161 | * calling iwl_trans_resume(), which might wait | |
2162 | * for d0i3 exit completion. | |
2163 | */ | |
2164 | mutex_lock(&mvm->d0i3_suspend_mutex); | |
2165 | __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags); | |
2166 | exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP, | |
2167 | &mvm->d0i3_suspend_flags); | |
2168 | mutex_unlock(&mvm->d0i3_suspend_mutex); | |
2169 | if (exit_now) { | |
2170 | IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n"); | |
2171 | _iwl_mvm_exit_d0i3(mvm); | |
2172 | } | |
debff618 | 2173 | |
b7282643 | 2174 | iwl_trans_resume(trans); |
465921c8 | 2175 | |
b7282643 | 2176 | if (iwl_mvm_enter_d0i3_on_suspend(mvm)) { |
2d42801b | 2177 | int ret = iwl_mvm_exit_d0i3(mvm->hw->priv); |
6735943f | 2178 | |
2d42801b EP |
2179 | if (ret) |
2180 | return ret; | |
2181 | /* | |
2182 | * d0i3 exit will be deferred until reconfig_complete. | |
2183 | * make sure there we are out of d0i3. | |
2184 | */ | |
91742449 | 2185 | } |
2d42801b EP |
2186 | return 0; |
2187 | } | |
d15a747f | 2188 | |
2d42801b EP |
2189 | int iwl_mvm_resume(struct ieee80211_hw *hw) |
2190 | { | |
2191 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
b7282643 | 2192 | int ret; |
2d42801b | 2193 | |
b7282643 LC |
2194 | if (mvm->trans->system_pm_mode == IWL_PLAT_PM_MODE_D0I3) |
2195 | ret = iwl_mvm_resume_d0i3(mvm); | |
2d42801b | 2196 | else |
b7282643 LC |
2197 | ret = iwl_mvm_resume_d3(mvm); |
2198 | ||
2199 | mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED; | |
2200 | ||
2201 | return ret; | |
debff618 JB |
2202 | } |
2203 | ||
8ca151b5 JB |
2204 | void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled) |
2205 | { | |
2206 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
2207 | ||
2208 | device_set_wakeup_enable(mvm->trans->dev, enabled); | |
2209 | } | |
debff618 JB |
2210 | |
2211 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
2212 | static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file) | |
2213 | { | |
2214 | struct iwl_mvm *mvm = inode->i_private; | |
2215 | int err; | |
2216 | ||
2217 | if (mvm->d3_test_active) | |
2218 | return -EBUSY; | |
2219 | ||
2220 | file->private_data = inode->i_private; | |
2221 | ||
2222 | ieee80211_stop_queues(mvm->hw); | |
2223 | synchronize_net(); | |
2224 | ||
b7282643 LC |
2225 | mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_D3; |
2226 | ||
debff618 JB |
2227 | /* start pseudo D3 */ |
2228 | rtnl_lock(); | |
2229 | err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true); | |
2230 | rtnl_unlock(); | |
2231 | if (err > 0) | |
2232 | err = -EINVAL; | |
2233 | if (err) { | |
2234 | ieee80211_wake_queues(mvm->hw); | |
2235 | return err; | |
2236 | } | |
2237 | mvm->d3_test_active = true; | |
78c9df66 | 2238 | mvm->keep_vif = NULL; |
debff618 JB |
2239 | return 0; |
2240 | } | |
2241 | ||
2242 | static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf, | |
2243 | size_t count, loff_t *ppos) | |
2244 | { | |
2245 | struct iwl_mvm *mvm = file->private_data; | |
2246 | u32 pme_asserted; | |
2247 | ||
2248 | while (true) { | |
4ed80a86 EP |
2249 | /* read pme_ptr if available */ |
2250 | if (mvm->d3_test_pme_ptr) { | |
2251 | pme_asserted = iwl_trans_read_mem32(mvm->trans, | |
2252 | mvm->d3_test_pme_ptr); | |
2253 | if (pme_asserted) | |
2254 | break; | |
2255 | } | |
2256 | ||
debff618 JB |
2257 | if (msleep_interruptible(100)) |
2258 | break; | |
2259 | } | |
2260 | ||
2261 | return 0; | |
2262 | } | |
2263 | ||
2264 | static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac, | |
2265 | struct ieee80211_vif *vif) | |
2266 | { | |
78c9df66 EP |
2267 | /* skip the one we keep connection on */ |
2268 | if (_data == vif) | |
2269 | return; | |
2270 | ||
debff618 JB |
2271 | if (vif->type == NL80211_IFTYPE_STATION) |
2272 | ieee80211_connection_loss(vif); | |
2273 | } | |
2274 | ||
2275 | static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file) | |
2276 | { | |
2277 | struct iwl_mvm *mvm = inode->i_private; | |
2278 | int remaining_time = 10; | |
2279 | ||
2280 | mvm->d3_test_active = false; | |
b7282643 | 2281 | |
31ca09dd | 2282 | rtnl_lock(); |
debff618 | 2283 | __iwl_mvm_resume(mvm, true); |
31ca09dd | 2284 | rtnl_unlock(); |
b7282643 LC |
2285 | |
2286 | mvm->trans->system_pm_mode = IWL_PLAT_PM_MODE_DISABLED; | |
2287 | ||
debff618 JB |
2288 | iwl_abort_notification_waits(&mvm->notif_wait); |
2289 | ieee80211_restart_hw(mvm->hw); | |
2290 | ||
2291 | /* wait for restart and disconnect all interfaces */ | |
2292 | while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && | |
2293 | remaining_time > 0) { | |
2294 | remaining_time--; | |
2295 | msleep(1000); | |
2296 | } | |
2297 | ||
2298 | if (remaining_time == 0) | |
2299 | IWL_ERR(mvm, "Timed out waiting for HW restart to finish!\n"); | |
2300 | ||
2301 | ieee80211_iterate_active_interfaces_atomic( | |
2302 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
78c9df66 | 2303 | iwl_mvm_d3_test_disconn_work_iter, mvm->keep_vif); |
debff618 JB |
2304 | |
2305 | ieee80211_wake_queues(mvm->hw); | |
2306 | ||
2307 | return 0; | |
2308 | } | |
2309 | ||
2310 | const struct file_operations iwl_dbgfs_d3_test_ops = { | |
2311 | .llseek = no_llseek, | |
2312 | .open = iwl_mvm_d3_test_open, | |
2313 | .read = iwl_mvm_d3_test_read, | |
2314 | .release = iwl_mvm_d3_test_release, | |
2315 | }; | |
2316 | #endif |