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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 | * | |
8 | * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of version 2 of the GNU General Public License as | |
12 | * published by the Free Software Foundation. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, but | |
15 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | * General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, | |
22 | * USA | |
23 | * | |
24 | * The full GNU General Public License is included in this distribution | |
410dc5aa | 25 | * in the file called COPYING. |
8ca151b5 JB |
26 | * |
27 | * Contact Information: | |
28 | * Intel Linux Wireless <ilw@linux.intel.com> | |
29 | * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | |
30 | * | |
31 | * BSD LICENSE | |
32 | * | |
33 | * Copyright(c) 2012 - 2013 Intel Corporation. All rights reserved. | |
34 | * All rights reserved. | |
35 | * | |
36 | * Redistribution and use in source and binary forms, with or without | |
37 | * modification, are permitted provided that the following conditions | |
38 | * are met: | |
39 | * | |
40 | * * Redistributions of source code must retain the above copyright | |
41 | * notice, this list of conditions and the following disclaimer. | |
42 | * * Redistributions in binary form must reproduce the above copyright | |
43 | * notice, this list of conditions and the following disclaimer in | |
44 | * the documentation and/or other materials provided with the | |
45 | * distribution. | |
46 | * * Neither the name Intel Corporation nor the names of its | |
47 | * contributors may be used to endorse or promote products derived | |
48 | * from this software without specific prior written permission. | |
49 | * | |
50 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
51 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
52 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
53 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
54 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
55 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
56 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
57 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
58 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
59 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
60 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
61 | * | |
62 | *****************************************************************************/ | |
63 | ||
f444eb10 | 64 | #include <linux/etherdevice.h> |
f0c2646a | 65 | #include <linux/ip.h> |
debff618 | 66 | #include <linux/fs.h> |
8ca151b5 JB |
67 | #include <net/cfg80211.h> |
68 | #include <net/ipv6.h> | |
f0c2646a | 69 | #include <net/tcp.h> |
8ca151b5 JB |
70 | #include "iwl-modparams.h" |
71 | #include "fw-api.h" | |
72 | #include "mvm.h" | |
73 | ||
74 | void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw, | |
75 | struct ieee80211_vif *vif, | |
76 | struct cfg80211_gtk_rekey_data *data) | |
77 | { | |
78 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
79 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
80 | ||
81 | if (iwlwifi_mod_params.sw_crypto) | |
82 | return; | |
83 | ||
84 | mutex_lock(&mvm->mutex); | |
85 | ||
86 | memcpy(mvmvif->rekey_data.kek, data->kek, NL80211_KEK_LEN); | |
87 | memcpy(mvmvif->rekey_data.kck, data->kck, NL80211_KCK_LEN); | |
88 | mvmvif->rekey_data.replay_ctr = | |
89 | cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr)); | |
90 | mvmvif->rekey_data.valid = true; | |
91 | ||
92 | mutex_unlock(&mvm->mutex); | |
93 | } | |
94 | ||
95 | #if IS_ENABLED(CONFIG_IPV6) | |
96 | void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw, | |
97 | struct ieee80211_vif *vif, | |
98 | struct inet6_dev *idev) | |
99 | { | |
100 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
101 | struct inet6_ifaddr *ifa; | |
102 | int idx = 0; | |
103 | ||
a3777e0f | 104 | read_lock_bh(&idev->lock); |
8ca151b5 JB |
105 | list_for_each_entry(ifa, &idev->addr_list, if_list) { |
106 | mvmvif->target_ipv6_addrs[idx] = ifa->addr; | |
107 | idx++; | |
108 | if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS) | |
109 | break; | |
110 | } | |
a3777e0f | 111 | read_unlock_bh(&idev->lock); |
8ca151b5 JB |
112 | |
113 | mvmvif->num_target_ipv6_addrs = idx; | |
114 | } | |
115 | #endif | |
116 | ||
117 | void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw, | |
118 | struct ieee80211_vif *vif, int idx) | |
119 | { | |
120 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
121 | ||
122 | mvmvif->tx_key_idx = idx; | |
123 | } | |
124 | ||
125 | static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out) | |
126 | { | |
127 | int i; | |
128 | ||
129 | for (i = 0; i < IWL_P1K_SIZE; i++) | |
130 | out[i] = cpu_to_le16(p1k[i]); | |
131 | } | |
132 | ||
133 | struct wowlan_key_data { | |
134 | struct iwl_wowlan_rsc_tsc_params_cmd *rsc_tsc; | |
135 | struct iwl_wowlan_tkip_params_cmd *tkip; | |
136 | bool error, use_rsc_tsc, use_tkip; | |
5312e54d | 137 | int wep_key_idx; |
8ca151b5 JB |
138 | }; |
139 | ||
140 | static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw, | |
141 | struct ieee80211_vif *vif, | |
142 | struct ieee80211_sta *sta, | |
143 | struct ieee80211_key_conf *key, | |
144 | void *_data) | |
145 | { | |
146 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
147 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
148 | struct wowlan_key_data *data = _data; | |
149 | struct aes_sc *aes_sc, *aes_tx_sc = NULL; | |
150 | struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL; | |
151 | struct iwl_p1k_cache *rx_p1ks; | |
152 | u8 *rx_mic_key; | |
153 | struct ieee80211_key_seq seq; | |
154 | u32 cur_rx_iv32 = 0; | |
155 | u16 p1k[IWL_P1K_SIZE]; | |
156 | int ret, i; | |
157 | ||
158 | mutex_lock(&mvm->mutex); | |
159 | ||
160 | switch (key->cipher) { | |
161 | case WLAN_CIPHER_SUITE_WEP40: | |
162 | case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */ | |
163 | struct { | |
164 | struct iwl_mvm_wep_key_cmd wep_key_cmd; | |
165 | struct iwl_mvm_wep_key wep_key; | |
166 | } __packed wkc = { | |
167 | .wep_key_cmd.mac_id_n_color = | |
168 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
169 | mvmvif->color)), | |
170 | .wep_key_cmd.num_keys = 1, | |
171 | /* firmware sets STA_KEY_FLG_WEP_13BYTES */ | |
172 | .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP, | |
173 | .wep_key.key_index = key->keyidx, | |
174 | .wep_key.key_size = key->keylen, | |
175 | }; | |
176 | ||
177 | /* | |
178 | * This will fail -- the key functions don't set support | |
179 | * pairwise WEP keys. However, that's better than silently | |
180 | * failing WoWLAN. Or maybe not? | |
181 | */ | |
182 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) | |
183 | break; | |
184 | ||
185 | memcpy(&wkc.wep_key.key[3], key->key, key->keylen); | |
186 | if (key->keyidx == mvmvif->tx_key_idx) { | |
187 | /* TX key must be at offset 0 */ | |
188 | wkc.wep_key.key_offset = 0; | |
189 | } else { | |
190 | /* others start at 1 */ | |
5312e54d JB |
191 | data->wep_key_idx++; |
192 | wkc.wep_key.key_offset = data->wep_key_idx; | |
8ca151b5 JB |
193 | } |
194 | ||
195 | ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, CMD_SYNC, | |
196 | sizeof(wkc), &wkc); | |
197 | data->error = ret != 0; | |
198 | ||
f444eb10 JB |
199 | mvm->ptk_ivlen = key->iv_len; |
200 | mvm->ptk_icvlen = key->icv_len; | |
201 | mvm->gtk_ivlen = key->iv_len; | |
202 | mvm->gtk_icvlen = key->icv_len; | |
203 | ||
8ca151b5 JB |
204 | /* don't upload key again */ |
205 | goto out_unlock; | |
206 | } | |
207 | default: | |
208 | data->error = true; | |
209 | goto out_unlock; | |
210 | case WLAN_CIPHER_SUITE_AES_CMAC: | |
211 | /* | |
212 | * Ignore CMAC keys -- the WoWLAN firmware doesn't support them | |
213 | * but we also shouldn't abort suspend due to that. It does have | |
214 | * support for the IGTK key renewal, but doesn't really use the | |
215 | * IGTK for anything. This means we could spuriously wake up or | |
216 | * be deauthenticated, but that was considered acceptable. | |
217 | */ | |
218 | goto out_unlock; | |
219 | case WLAN_CIPHER_SUITE_TKIP: | |
220 | if (sta) { | |
221 | tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc; | |
222 | tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc; | |
223 | ||
224 | rx_p1ks = data->tkip->rx_uni; | |
225 | ||
226 | ieee80211_get_key_tx_seq(key, &seq); | |
227 | tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16); | |
228 | tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32); | |
229 | ||
230 | ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k); | |
231 | iwl_mvm_convert_p1k(p1k, data->tkip->tx.p1k); | |
232 | ||
233 | memcpy(data->tkip->mic_keys.tx, | |
234 | &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY], | |
235 | IWL_MIC_KEY_SIZE); | |
236 | ||
237 | rx_mic_key = data->tkip->mic_keys.rx_unicast; | |
238 | } else { | |
239 | tkip_sc = | |
240 | data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc; | |
241 | rx_p1ks = data->tkip->rx_multi; | |
242 | rx_mic_key = data->tkip->mic_keys.rx_mcast; | |
243 | } | |
244 | ||
245 | /* | |
246 | * For non-QoS this relies on the fact that both the uCode and | |
247 | * mac80211 use TID 0 (as they need to to avoid replay attacks) | |
248 | * for checking the IV in the frames. | |
249 | */ | |
250 | for (i = 0; i < IWL_NUM_RSC; i++) { | |
251 | ieee80211_get_key_rx_seq(key, i, &seq); | |
252 | tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16); | |
253 | tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32); | |
254 | /* wrapping isn't allowed, AP must rekey */ | |
255 | if (seq.tkip.iv32 > cur_rx_iv32) | |
256 | cur_rx_iv32 = seq.tkip.iv32; | |
257 | } | |
258 | ||
259 | ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, | |
260 | cur_rx_iv32, p1k); | |
261 | iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k); | |
262 | ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid, | |
263 | cur_rx_iv32 + 1, p1k); | |
264 | iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k); | |
265 | ||
266 | memcpy(rx_mic_key, | |
267 | &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY], | |
268 | IWL_MIC_KEY_SIZE); | |
269 | ||
270 | data->use_tkip = true; | |
271 | data->use_rsc_tsc = true; | |
272 | break; | |
273 | case WLAN_CIPHER_SUITE_CCMP: | |
274 | if (sta) { | |
275 | u8 *pn = seq.ccmp.pn; | |
276 | ||
277 | aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc; | |
278 | aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc; | |
279 | ||
280 | ieee80211_get_key_tx_seq(key, &seq); | |
281 | aes_tx_sc->pn = cpu_to_le64((u64)pn[5] | | |
282 | ((u64)pn[4] << 8) | | |
283 | ((u64)pn[3] << 16) | | |
284 | ((u64)pn[2] << 24) | | |
285 | ((u64)pn[1] << 32) | | |
286 | ((u64)pn[0] << 40)); | |
287 | } else { | |
288 | aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc; | |
289 | } | |
290 | ||
291 | /* | |
292 | * For non-QoS this relies on the fact that both the uCode and | |
293 | * mac80211 use TID 0 for checking the IV in the frames. | |
294 | */ | |
295 | for (i = 0; i < IWL_NUM_RSC; i++) { | |
296 | u8 *pn = seq.ccmp.pn; | |
297 | ||
298 | ieee80211_get_key_rx_seq(key, i, &seq); | |
299 | aes_sc->pn = cpu_to_le64((u64)pn[5] | | |
300 | ((u64)pn[4] << 8) | | |
301 | ((u64)pn[3] << 16) | | |
302 | ((u64)pn[2] << 24) | | |
303 | ((u64)pn[1] << 32) | | |
304 | ((u64)pn[0] << 40)); | |
305 | } | |
306 | data->use_rsc_tsc = true; | |
307 | break; | |
308 | } | |
309 | ||
310 | /* | |
311 | * The D3 firmware hardcodes the key offset 0 as the key it uses | |
312 | * to transmit packets to the AP, i.e. the PTK. | |
313 | */ | |
314 | if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) { | |
315 | key->hw_key_idx = 0; | |
f444eb10 JB |
316 | mvm->ptk_ivlen = key->iv_len; |
317 | mvm->ptk_icvlen = key->icv_len; | |
8ca151b5 | 318 | } else { |
5312e54d JB |
319 | /* |
320 | * firmware only supports TSC/RSC for a single key, | |
321 | * so if there are multiple keep overwriting them | |
322 | * with new ones -- this relies on mac80211 doing | |
323 | * list_add_tail(). | |
324 | */ | |
325 | key->hw_key_idx = 1; | |
f444eb10 JB |
326 | mvm->gtk_ivlen = key->iv_len; |
327 | mvm->gtk_icvlen = key->icv_len; | |
8ca151b5 JB |
328 | } |
329 | ||
330 | ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, true); | |
331 | data->error = ret != 0; | |
332 | out_unlock: | |
333 | mutex_unlock(&mvm->mutex); | |
334 | } | |
335 | ||
336 | static int iwl_mvm_send_patterns(struct iwl_mvm *mvm, | |
337 | struct cfg80211_wowlan *wowlan) | |
338 | { | |
339 | struct iwl_wowlan_patterns_cmd *pattern_cmd; | |
340 | struct iwl_host_cmd cmd = { | |
341 | .id = WOWLAN_PATTERNS, | |
342 | .dataflags[0] = IWL_HCMD_DFL_NOCOPY, | |
343 | .flags = CMD_SYNC, | |
344 | }; | |
345 | int i, err; | |
346 | ||
347 | if (!wowlan->n_patterns) | |
348 | return 0; | |
349 | ||
350 | cmd.len[0] = sizeof(*pattern_cmd) + | |
351 | wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern); | |
352 | ||
353 | pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL); | |
354 | if (!pattern_cmd) | |
355 | return -ENOMEM; | |
356 | ||
357 | pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns); | |
358 | ||
359 | for (i = 0; i < wowlan->n_patterns; i++) { | |
360 | int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8); | |
361 | ||
362 | memcpy(&pattern_cmd->patterns[i].mask, | |
363 | wowlan->patterns[i].mask, mask_len); | |
364 | memcpy(&pattern_cmd->patterns[i].pattern, | |
365 | wowlan->patterns[i].pattern, | |
366 | wowlan->patterns[i].pattern_len); | |
367 | pattern_cmd->patterns[i].mask_size = mask_len; | |
368 | pattern_cmd->patterns[i].pattern_size = | |
369 | wowlan->patterns[i].pattern_len; | |
370 | } | |
371 | ||
372 | cmd.data[0] = pattern_cmd; | |
373 | err = iwl_mvm_send_cmd(mvm, &cmd); | |
374 | kfree(pattern_cmd); | |
375 | return err; | |
376 | } | |
377 | ||
378 | static int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm, | |
379 | struct ieee80211_vif *vif) | |
380 | { | |
381 | struct iwl_proto_offload_cmd cmd = {}; | |
382 | #if IS_ENABLED(CONFIG_IPV6) | |
383 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
384 | int i; | |
385 | ||
386 | if (mvmvif->num_target_ipv6_addrs) { | |
387 | cmd.enabled |= cpu_to_le32(IWL_D3_PROTO_OFFLOAD_NS); | |
388 | memcpy(cmd.ndp_mac_addr, vif->addr, ETH_ALEN); | |
389 | } | |
390 | ||
391 | BUILD_BUG_ON(sizeof(cmd.target_ipv6_addr[i]) != | |
392 | sizeof(mvmvif->target_ipv6_addrs[i])); | |
393 | ||
394 | for (i = 0; i < mvmvif->num_target_ipv6_addrs; i++) | |
395 | memcpy(cmd.target_ipv6_addr[i], | |
396 | &mvmvif->target_ipv6_addrs[i], | |
397 | sizeof(cmd.target_ipv6_addr[i])); | |
398 | #endif | |
399 | ||
400 | if (vif->bss_conf.arp_addr_cnt) { | |
401 | cmd.enabled |= cpu_to_le32(IWL_D3_PROTO_OFFLOAD_ARP); | |
402 | cmd.host_ipv4_addr = vif->bss_conf.arp_addr_list[0]; | |
403 | memcpy(cmd.arp_mac_addr, vif->addr, ETH_ALEN); | |
404 | } | |
405 | ||
406 | if (!cmd.enabled) | |
407 | return 0; | |
408 | ||
409 | return iwl_mvm_send_cmd_pdu(mvm, PROT_OFFLOAD_CONFIG_CMD, CMD_SYNC, | |
410 | sizeof(cmd), &cmd); | |
411 | } | |
412 | ||
f0c2646a JB |
413 | enum iwl_mvm_tcp_packet_type { |
414 | MVM_TCP_TX_SYN, | |
415 | MVM_TCP_RX_SYNACK, | |
416 | MVM_TCP_TX_DATA, | |
417 | MVM_TCP_RX_ACK, | |
418 | MVM_TCP_RX_WAKE, | |
419 | MVM_TCP_TX_FIN, | |
420 | }; | |
421 | ||
422 | static __le16 pseudo_hdr_check(int len, __be32 saddr, __be32 daddr) | |
423 | { | |
424 | __sum16 check = tcp_v4_check(len, saddr, daddr, 0); | |
425 | return cpu_to_le16(be16_to_cpu((__force __be16)check)); | |
426 | } | |
427 | ||
b002c7e1 | 428 | static void iwl_mvm_build_tcp_packet(struct ieee80211_vif *vif, |
f0c2646a JB |
429 | struct cfg80211_wowlan_tcp *tcp, |
430 | void *_pkt, u8 *mask, | |
431 | __le16 *pseudo_hdr_csum, | |
432 | enum iwl_mvm_tcp_packet_type ptype) | |
433 | { | |
434 | struct { | |
435 | struct ethhdr eth; | |
436 | struct iphdr ip; | |
437 | struct tcphdr tcp; | |
438 | u8 data[]; | |
439 | } __packed *pkt = _pkt; | |
440 | u16 ip_tot_len = sizeof(struct iphdr) + sizeof(struct tcphdr); | |
441 | int i; | |
442 | ||
443 | pkt->eth.h_proto = cpu_to_be16(ETH_P_IP), | |
444 | pkt->ip.version = 4; | |
445 | pkt->ip.ihl = 5; | |
446 | pkt->ip.protocol = IPPROTO_TCP; | |
447 | ||
448 | switch (ptype) { | |
449 | case MVM_TCP_TX_SYN: | |
450 | case MVM_TCP_TX_DATA: | |
451 | case MVM_TCP_TX_FIN: | |
452 | memcpy(pkt->eth.h_dest, tcp->dst_mac, ETH_ALEN); | |
453 | memcpy(pkt->eth.h_source, vif->addr, ETH_ALEN); | |
454 | pkt->ip.ttl = 128; | |
455 | pkt->ip.saddr = tcp->src; | |
456 | pkt->ip.daddr = tcp->dst; | |
457 | pkt->tcp.source = cpu_to_be16(tcp->src_port); | |
458 | pkt->tcp.dest = cpu_to_be16(tcp->dst_port); | |
459 | /* overwritten for TX SYN later */ | |
460 | pkt->tcp.doff = sizeof(struct tcphdr) / 4; | |
461 | pkt->tcp.window = cpu_to_be16(65000); | |
462 | break; | |
463 | case MVM_TCP_RX_SYNACK: | |
464 | case MVM_TCP_RX_ACK: | |
465 | case MVM_TCP_RX_WAKE: | |
466 | memcpy(pkt->eth.h_dest, vif->addr, ETH_ALEN); | |
467 | memcpy(pkt->eth.h_source, tcp->dst_mac, ETH_ALEN); | |
468 | pkt->ip.saddr = tcp->dst; | |
469 | pkt->ip.daddr = tcp->src; | |
470 | pkt->tcp.source = cpu_to_be16(tcp->dst_port); | |
471 | pkt->tcp.dest = cpu_to_be16(tcp->src_port); | |
472 | break; | |
473 | default: | |
474 | WARN_ON(1); | |
475 | return; | |
476 | } | |
477 | ||
478 | switch (ptype) { | |
479 | case MVM_TCP_TX_SYN: | |
480 | /* firmware assumes 8 option bytes - 8 NOPs for now */ | |
481 | memset(pkt->data, 0x01, 8); | |
482 | ip_tot_len += 8; | |
483 | pkt->tcp.doff = (sizeof(struct tcphdr) + 8) / 4; | |
484 | pkt->tcp.syn = 1; | |
485 | break; | |
486 | case MVM_TCP_TX_DATA: | |
487 | ip_tot_len += tcp->payload_len; | |
488 | memcpy(pkt->data, tcp->payload, tcp->payload_len); | |
489 | pkt->tcp.psh = 1; | |
490 | pkt->tcp.ack = 1; | |
491 | break; | |
492 | case MVM_TCP_TX_FIN: | |
493 | pkt->tcp.fin = 1; | |
494 | pkt->tcp.ack = 1; | |
495 | break; | |
496 | case MVM_TCP_RX_SYNACK: | |
497 | pkt->tcp.syn = 1; | |
498 | pkt->tcp.ack = 1; | |
499 | break; | |
500 | case MVM_TCP_RX_ACK: | |
501 | pkt->tcp.ack = 1; | |
502 | break; | |
503 | case MVM_TCP_RX_WAKE: | |
504 | ip_tot_len += tcp->wake_len; | |
505 | pkt->tcp.psh = 1; | |
506 | pkt->tcp.ack = 1; | |
507 | memcpy(pkt->data, tcp->wake_data, tcp->wake_len); | |
508 | break; | |
509 | } | |
510 | ||
511 | switch (ptype) { | |
512 | case MVM_TCP_TX_SYN: | |
513 | case MVM_TCP_TX_DATA: | |
514 | case MVM_TCP_TX_FIN: | |
515 | pkt->ip.tot_len = cpu_to_be16(ip_tot_len); | |
516 | pkt->ip.check = ip_fast_csum(&pkt->ip, pkt->ip.ihl); | |
517 | break; | |
518 | case MVM_TCP_RX_WAKE: | |
519 | for (i = 0; i < DIV_ROUND_UP(tcp->wake_len, 8); i++) { | |
520 | u8 tmp = tcp->wake_mask[i]; | |
521 | mask[i + 6] |= tmp << 6; | |
522 | if (i + 1 < DIV_ROUND_UP(tcp->wake_len, 8)) | |
523 | mask[i + 7] = tmp >> 2; | |
524 | } | |
525 | /* fall through for ethernet/IP/TCP headers mask */ | |
526 | case MVM_TCP_RX_SYNACK: | |
527 | case MVM_TCP_RX_ACK: | |
528 | mask[0] = 0xff; /* match ethernet */ | |
529 | /* | |
530 | * match ethernet, ip.version, ip.ihl | |
531 | * the ip.ihl half byte is really masked out by firmware | |
532 | */ | |
533 | mask[1] = 0x7f; | |
534 | mask[2] = 0x80; /* match ip.protocol */ | |
535 | mask[3] = 0xfc; /* match ip.saddr, ip.daddr */ | |
536 | mask[4] = 0x3f; /* match ip.daddr, tcp.source, tcp.dest */ | |
537 | mask[5] = 0x80; /* match tcp flags */ | |
538 | /* leave rest (0 or set for MVM_TCP_RX_WAKE) */ | |
539 | break; | |
540 | }; | |
541 | ||
542 | *pseudo_hdr_csum = pseudo_hdr_check(ip_tot_len - sizeof(struct iphdr), | |
543 | pkt->ip.saddr, pkt->ip.daddr); | |
544 | } | |
545 | ||
546 | static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm *mvm, | |
547 | struct ieee80211_vif *vif, | |
548 | struct cfg80211_wowlan_tcp *tcp) | |
549 | { | |
550 | struct iwl_wowlan_remote_wake_config *cfg; | |
551 | struct iwl_host_cmd cmd = { | |
552 | .id = REMOTE_WAKE_CONFIG_CMD, | |
553 | .len = { sizeof(*cfg), }, | |
554 | .dataflags = { IWL_HCMD_DFL_NOCOPY, }, | |
555 | .flags = CMD_SYNC, | |
556 | }; | |
557 | int ret; | |
558 | ||
559 | if (!tcp) | |
560 | return 0; | |
561 | ||
562 | cfg = kzalloc(sizeof(*cfg), GFP_KERNEL); | |
563 | if (!cfg) | |
564 | return -ENOMEM; | |
565 | cmd.data[0] = cfg; | |
566 | ||
567 | cfg->max_syn_retries = 10; | |
568 | cfg->max_data_retries = 10; | |
569 | cfg->tcp_syn_ack_timeout = 1; /* seconds */ | |
570 | cfg->tcp_ack_timeout = 1; /* seconds */ | |
571 | ||
572 | /* SYN (TX) */ | |
573 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 574 | vif, tcp, cfg->syn_tx.data, NULL, |
f0c2646a JB |
575 | &cfg->syn_tx.info.tcp_pseudo_header_checksum, |
576 | MVM_TCP_TX_SYN); | |
577 | cfg->syn_tx.info.tcp_payload_length = 0; | |
578 | ||
579 | /* SYN/ACK (RX) */ | |
580 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 581 | vif, tcp, cfg->synack_rx.data, cfg->synack_rx.rx_mask, |
f0c2646a JB |
582 | &cfg->synack_rx.info.tcp_pseudo_header_checksum, |
583 | MVM_TCP_RX_SYNACK); | |
584 | cfg->synack_rx.info.tcp_payload_length = 0; | |
585 | ||
586 | /* KEEPALIVE/ACK (TX) */ | |
587 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 588 | vif, tcp, cfg->keepalive_tx.data, NULL, |
f0c2646a JB |
589 | &cfg->keepalive_tx.info.tcp_pseudo_header_checksum, |
590 | MVM_TCP_TX_DATA); | |
591 | cfg->keepalive_tx.info.tcp_payload_length = | |
592 | cpu_to_le16(tcp->payload_len); | |
593 | cfg->sequence_number_offset = tcp->payload_seq.offset; | |
594 | /* length must be 0..4, the field is little endian */ | |
595 | cfg->sequence_number_length = tcp->payload_seq.len; | |
596 | cfg->initial_sequence_number = cpu_to_le32(tcp->payload_seq.start); | |
597 | cfg->keepalive_interval = cpu_to_le16(tcp->data_interval); | |
598 | if (tcp->payload_tok.len) { | |
599 | cfg->token_offset = tcp->payload_tok.offset; | |
600 | cfg->token_length = tcp->payload_tok.len; | |
601 | cfg->num_tokens = | |
602 | cpu_to_le16(tcp->tokens_size % tcp->payload_tok.len); | |
603 | memcpy(cfg->tokens, tcp->payload_tok.token_stream, | |
604 | tcp->tokens_size); | |
605 | } else { | |
606 | /* set tokens to max value to almost never run out */ | |
607 | cfg->num_tokens = cpu_to_le16(65535); | |
608 | } | |
609 | ||
610 | /* ACK (RX) */ | |
611 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 612 | vif, tcp, cfg->keepalive_ack_rx.data, |
f0c2646a JB |
613 | cfg->keepalive_ack_rx.rx_mask, |
614 | &cfg->keepalive_ack_rx.info.tcp_pseudo_header_checksum, | |
615 | MVM_TCP_RX_ACK); | |
616 | cfg->keepalive_ack_rx.info.tcp_payload_length = 0; | |
617 | ||
618 | /* WAKEUP (RX) */ | |
619 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 620 | vif, tcp, cfg->wake_rx.data, cfg->wake_rx.rx_mask, |
f0c2646a JB |
621 | &cfg->wake_rx.info.tcp_pseudo_header_checksum, |
622 | MVM_TCP_RX_WAKE); | |
623 | cfg->wake_rx.info.tcp_payload_length = | |
624 | cpu_to_le16(tcp->wake_len); | |
625 | ||
626 | /* FIN */ | |
627 | iwl_mvm_build_tcp_packet( | |
b002c7e1 | 628 | vif, tcp, cfg->fin_tx.data, NULL, |
f0c2646a JB |
629 | &cfg->fin_tx.info.tcp_pseudo_header_checksum, |
630 | MVM_TCP_TX_FIN); | |
631 | cfg->fin_tx.info.tcp_payload_length = 0; | |
632 | ||
633 | ret = iwl_mvm_send_cmd(mvm, &cmd); | |
634 | kfree(cfg); | |
635 | ||
636 | return ret; | |
637 | } | |
638 | ||
8ca151b5 JB |
639 | struct iwl_d3_iter_data { |
640 | struct iwl_mvm *mvm; | |
641 | struct ieee80211_vif *vif; | |
642 | bool error; | |
643 | }; | |
644 | ||
645 | static void iwl_mvm_d3_iface_iterator(void *_data, u8 *mac, | |
646 | struct ieee80211_vif *vif) | |
647 | { | |
648 | struct iwl_d3_iter_data *data = _data; | |
649 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
650 | ||
651 | if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) | |
652 | return; | |
653 | ||
654 | if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT) | |
655 | return; | |
656 | ||
657 | if (data->vif) { | |
658 | IWL_ERR(data->mvm, "More than one managed interface active!\n"); | |
659 | data->error = true; | |
660 | return; | |
661 | } | |
662 | ||
663 | data->vif = vif; | |
664 | } | |
665 | ||
666 | static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif, | |
667 | struct ieee80211_sta *ap_sta) | |
668 | { | |
669 | struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
670 | struct ieee80211_chanctx_conf *ctx; | |
671 | u8 chains_static, chains_dynamic; | |
672 | struct cfg80211_chan_def chandef; | |
673 | int ret, i; | |
674 | struct iwl_binding_cmd binding_cmd = {}; | |
675 | struct iwl_time_quota_cmd quota_cmd = {}; | |
676 | u32 status; | |
677 | ||
678 | /* add back the PHY */ | |
679 | if (WARN_ON(!mvmvif->phy_ctxt)) | |
680 | return -EINVAL; | |
681 | ||
682 | rcu_read_lock(); | |
683 | ctx = rcu_dereference(vif->chanctx_conf); | |
684 | if (WARN_ON(!ctx)) { | |
685 | rcu_read_unlock(); | |
686 | return -EINVAL; | |
687 | } | |
688 | chandef = ctx->def; | |
689 | chains_static = ctx->rx_chains_static; | |
690 | chains_dynamic = ctx->rx_chains_dynamic; | |
691 | rcu_read_unlock(); | |
692 | ||
693 | ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef, | |
694 | chains_static, chains_dynamic); | |
695 | if (ret) | |
696 | return ret; | |
697 | ||
698 | /* add back the MAC */ | |
699 | mvmvif->uploaded = false; | |
700 | ||
701 | if (WARN_ON(!vif->bss_conf.assoc)) | |
702 | return -EINVAL; | |
703 | /* hack */ | |
704 | vif->bss_conf.assoc = false; | |
705 | ret = iwl_mvm_mac_ctxt_add(mvm, vif); | |
706 | vif->bss_conf.assoc = true; | |
707 | if (ret) | |
708 | return ret; | |
709 | ||
710 | /* add back binding - XXX refactor? */ | |
711 | binding_cmd.id_and_color = | |
712 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, | |
713 | mvmvif->phy_ctxt->color)); | |
714 | binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD); | |
715 | binding_cmd.phy = | |
716 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, | |
717 | mvmvif->phy_ctxt->color)); | |
718 | binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id, | |
719 | mvmvif->color)); | |
720 | for (i = 1; i < MAX_MACS_IN_BINDING; i++) | |
721 | binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID); | |
722 | ||
723 | status = 0; | |
724 | ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD, | |
725 | sizeof(binding_cmd), &binding_cmd, | |
726 | &status); | |
727 | if (ret) { | |
728 | IWL_ERR(mvm, "Failed to add binding: %d\n", ret); | |
729 | return ret; | |
730 | } | |
731 | ||
732 | if (status) { | |
733 | IWL_ERR(mvm, "Binding command failed: %u\n", status); | |
734 | return -EIO; | |
735 | } | |
736 | ||
7a453973 | 737 | ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false); |
8ca151b5 JB |
738 | if (ret) |
739 | return ret; | |
740 | rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta); | |
741 | ||
742 | ret = iwl_mvm_mac_ctxt_changed(mvm, vif); | |
743 | if (ret) | |
744 | return ret; | |
745 | ||
746 | /* and some quota */ | |
747 | quota_cmd.quotas[0].id_and_color = | |
748 | cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id, | |
749 | mvmvif->phy_ctxt->color)); | |
750 | quota_cmd.quotas[0].quota = cpu_to_le32(100); | |
751 | quota_cmd.quotas[0].max_duration = cpu_to_le32(1000); | |
752 | ||
753 | for (i = 1; i < MAX_BINDINGS; i++) | |
754 | quota_cmd.quotas[i].id_and_color = cpu_to_le32(FW_CTXT_INVALID); | |
755 | ||
756 | ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, CMD_SYNC, | |
757 | sizeof(quota_cmd), "a_cmd); | |
758 | if (ret) | |
759 | IWL_ERR(mvm, "Failed to send quota: %d\n", ret); | |
760 | ||
761 | return 0; | |
762 | } | |
763 | ||
debff618 JB |
764 | static int __iwl_mvm_suspend(struct ieee80211_hw *hw, |
765 | struct cfg80211_wowlan *wowlan, | |
766 | bool test) | |
8ca151b5 JB |
767 | { |
768 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
769 | struct iwl_d3_iter_data suspend_iter_data = { | |
770 | .mvm = mvm, | |
771 | }; | |
772 | struct ieee80211_vif *vif; | |
773 | struct iwl_mvm_vif *mvmvif; | |
774 | struct ieee80211_sta *ap_sta; | |
775 | struct iwl_mvm_sta *mvm_ap_sta; | |
776 | struct iwl_wowlan_config_cmd wowlan_config_cmd = {}; | |
777 | struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {}; | |
778 | struct iwl_wowlan_tkip_params_cmd tkip_cmd = {}; | |
debff618 | 779 | struct iwl_d3_manager_config d3_cfg_cmd_data = { |
c920487d JB |
780 | /* |
781 | * Program the minimum sleep time to 10 seconds, as many | |
782 | * platforms have issues processing a wakeup signal while | |
783 | * still being in the process of suspending. | |
784 | */ | |
785 | .min_sleep_time = cpu_to_le32(10 * 1000 * 1000), | |
786 | }; | |
debff618 JB |
787 | struct iwl_host_cmd d3_cfg_cmd = { |
788 | .id = D3_CONFIG_CMD, | |
789 | .flags = CMD_SYNC | CMD_WANT_SKB, | |
790 | .data[0] = &d3_cfg_cmd_data, | |
791 | .len[0] = sizeof(d3_cfg_cmd_data), | |
792 | }; | |
8ca151b5 JB |
793 | struct wowlan_key_data key_data = { |
794 | .use_rsc_tsc = false, | |
795 | .tkip = &tkip_cmd, | |
796 | .use_tkip = false, | |
797 | }; | |
798 | int ret, i; | |
debff618 | 799 | int len __maybe_unused; |
8ca151b5 JB |
800 | u16 seq; |
801 | u8 old_aux_sta_id, old_ap_sta_id = IWL_MVM_STATION_COUNT; | |
802 | ||
debff618 JB |
803 | if (!wowlan) { |
804 | /* | |
805 | * mac80211 shouldn't get here, but for D3 test | |
806 | * it doesn't warrant a warning | |
807 | */ | |
808 | WARN_ON(!test); | |
8ca151b5 | 809 | return -EINVAL; |
debff618 | 810 | } |
8ca151b5 JB |
811 | |
812 | key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL); | |
813 | if (!key_data.rsc_tsc) | |
814 | return -ENOMEM; | |
815 | ||
816 | mutex_lock(&mvm->mutex); | |
817 | ||
818 | old_aux_sta_id = mvm->aux_sta.sta_id; | |
819 | ||
820 | /* see if there's only a single BSS vif and it's associated */ | |
821 | ieee80211_iterate_active_interfaces_atomic( | |
822 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
823 | iwl_mvm_d3_iface_iterator, &suspend_iter_data); | |
824 | ||
825 | if (suspend_iter_data.error || !suspend_iter_data.vif) { | |
826 | ret = 1; | |
827 | goto out_noreset; | |
828 | } | |
829 | ||
830 | vif = suspend_iter_data.vif; | |
831 | mvmvif = iwl_mvm_vif_from_mac80211(vif); | |
832 | ||
833 | ap_sta = rcu_dereference_protected( | |
834 | mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], | |
835 | lockdep_is_held(&mvm->mutex)); | |
836 | if (IS_ERR_OR_NULL(ap_sta)) { | |
837 | ret = -EINVAL; | |
838 | goto out_noreset; | |
839 | } | |
840 | ||
841 | mvm_ap_sta = (struct iwl_mvm_sta *)ap_sta->drv_priv; | |
842 | ||
843 | /* | |
844 | * The D3 firmware still hardcodes the AP station ID for the | |
845 | * BSS we're associated with as 0. Store the real STA ID here | |
846 | * and assign 0. When we leave this function, we'll restore | |
847 | * the original value for the resume code. | |
848 | */ | |
849 | old_ap_sta_id = mvm_ap_sta->sta_id; | |
850 | mvm_ap_sta->sta_id = 0; | |
851 | mvmvif->ap_sta_id = 0; | |
852 | ||
853 | /* TODO: wowlan_config_cmd.wowlan_ba_teardown_tids */ | |
854 | ||
855 | wowlan_config_cmd.is_11n_connection = ap_sta->ht_cap.ht_supported; | |
856 | ||
857 | /* | |
858 | * We know the last used seqno, and the uCode expects to know that | |
859 | * one, it will increment before TX. | |
860 | */ | |
861 | seq = mvm_ap_sta->last_seq_ctl & IEEE80211_SCTL_SEQ; | |
862 | wowlan_config_cmd.non_qos_seq = cpu_to_le16(seq); | |
863 | ||
864 | /* | |
865 | * For QoS counters, we store the one to use next, so subtract 0x10 | |
866 | * since the uCode will add 0x10 *before* using the value while we | |
867 | * increment after using the value (i.e. store the next value to use). | |
868 | */ | |
869 | for (i = 0; i < IWL_MAX_TID_COUNT; i++) { | |
870 | seq = mvm_ap_sta->tid_data[i].seq_number; | |
871 | seq -= 0x10; | |
872 | wowlan_config_cmd.qos_seq[i] = cpu_to_le16(seq); | |
873 | } | |
874 | ||
875 | if (wowlan->disconnect) | |
876 | wowlan_config_cmd.wakeup_filter |= | |
877 | cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS | | |
878 | IWL_WOWLAN_WAKEUP_LINK_CHANGE); | |
879 | if (wowlan->magic_pkt) | |
880 | wowlan_config_cmd.wakeup_filter |= | |
881 | cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET); | |
882 | if (wowlan->gtk_rekey_failure) | |
883 | wowlan_config_cmd.wakeup_filter |= | |
884 | cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL); | |
885 | if (wowlan->eap_identity_req) | |
886 | wowlan_config_cmd.wakeup_filter |= | |
887 | cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ); | |
888 | if (wowlan->four_way_handshake) | |
889 | wowlan_config_cmd.wakeup_filter |= | |
890 | cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE); | |
891 | if (wowlan->n_patterns) | |
892 | wowlan_config_cmd.wakeup_filter |= | |
893 | cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH); | |
894 | ||
895 | if (wowlan->rfkill_release) | |
6039f3e1 | 896 | wowlan_config_cmd.wakeup_filter |= |
8ca151b5 JB |
897 | cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT); |
898 | ||
f0c2646a JB |
899 | if (wowlan->tcp) { |
900 | /* | |
6039f3e1 JB |
901 | * Set the "link change" (really "link lost") flag as well |
902 | * since that implies losing the TCP connection. | |
f0c2646a JB |
903 | */ |
904 | wowlan_config_cmd.wakeup_filter |= | |
905 | cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS | | |
906 | IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE | | |
907 | IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET | | |
908 | IWL_WOWLAN_WAKEUP_LINK_CHANGE); | |
909 | } | |
910 | ||
8ca151b5 JB |
911 | iwl_mvm_cancel_scan(mvm); |
912 | ||
913 | iwl_trans_stop_device(mvm->trans); | |
914 | ||
915 | /* | |
916 | * Set the HW restart bit -- this is mostly true as we're | |
917 | * going to load new firmware and reprogram that, though | |
918 | * the reprogramming is going to be manual to avoid adding | |
919 | * all the MACs that aren't support. | |
920 | * We don't have to clear up everything though because the | |
921 | * reprogramming is manual. When we resume, we'll actually | |
922 | * go through a proper restart sequence again to switch | |
923 | * back to the runtime firmware image. | |
924 | */ | |
925 | set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
926 | ||
927 | /* We reprogram keys and shouldn't allocate new key indices */ | |
928 | memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table)); | |
929 | ||
f444eb10 JB |
930 | mvm->ptk_ivlen = 0; |
931 | mvm->ptk_icvlen = 0; | |
932 | mvm->ptk_ivlen = 0; | |
933 | mvm->ptk_icvlen = 0; | |
934 | ||
8ca151b5 JB |
935 | /* |
936 | * The D3 firmware still hardcodes the AP station ID for the | |
937 | * BSS we're associated with as 0. As a result, we have to move | |
938 | * the auxiliary station to ID 1 so the ID 0 remains free for | |
939 | * the AP station for later. | |
940 | * We set the sta_id to 1 here, and reset it to its previous | |
941 | * value (that we stored above) later. | |
942 | */ | |
943 | mvm->aux_sta.sta_id = 1; | |
944 | ||
945 | ret = iwl_mvm_load_d3_fw(mvm); | |
946 | if (ret) | |
947 | goto out; | |
948 | ||
949 | ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta); | |
950 | if (ret) | |
951 | goto out; | |
952 | ||
953 | if (!iwlwifi_mod_params.sw_crypto) { | |
954 | /* | |
955 | * This needs to be unlocked due to lock ordering | |
956 | * constraints. Since we're in the suspend path | |
957 | * that isn't really a problem though. | |
958 | */ | |
959 | mutex_unlock(&mvm->mutex); | |
960 | ieee80211_iter_keys(mvm->hw, vif, | |
961 | iwl_mvm_wowlan_program_keys, | |
962 | &key_data); | |
963 | mutex_lock(&mvm->mutex); | |
964 | if (key_data.error) { | |
965 | ret = -EIO; | |
966 | goto out; | |
967 | } | |
968 | ||
969 | if (key_data.use_rsc_tsc) { | |
970 | struct iwl_host_cmd rsc_tsc_cmd = { | |
971 | .id = WOWLAN_TSC_RSC_PARAM, | |
972 | .flags = CMD_SYNC, | |
973 | .data[0] = key_data.rsc_tsc, | |
974 | .dataflags[0] = IWL_HCMD_DFL_NOCOPY, | |
975 | .len[0] = sizeof(*key_data.rsc_tsc), | |
976 | }; | |
977 | ||
978 | ret = iwl_mvm_send_cmd(mvm, &rsc_tsc_cmd); | |
979 | if (ret) | |
980 | goto out; | |
981 | } | |
982 | ||
983 | if (key_data.use_tkip) { | |
984 | ret = iwl_mvm_send_cmd_pdu(mvm, | |
985 | WOWLAN_TKIP_PARAM, | |
986 | CMD_SYNC, sizeof(tkip_cmd), | |
987 | &tkip_cmd); | |
988 | if (ret) | |
989 | goto out; | |
990 | } | |
991 | ||
992 | if (mvmvif->rekey_data.valid) { | |
993 | memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd)); | |
994 | memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck, | |
995 | NL80211_KCK_LEN); | |
996 | kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN); | |
997 | memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek, | |
998 | NL80211_KEK_LEN); | |
999 | kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN); | |
1000 | kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr; | |
1001 | ||
1002 | ret = iwl_mvm_send_cmd_pdu(mvm, | |
1003 | WOWLAN_KEK_KCK_MATERIAL, | |
1004 | CMD_SYNC, | |
1005 | sizeof(kek_kck_cmd), | |
1006 | &kek_kck_cmd); | |
1007 | if (ret) | |
1008 | goto out; | |
1009 | } | |
1010 | } | |
1011 | ||
1012 | ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION, | |
1013 | CMD_SYNC, sizeof(wowlan_config_cmd), | |
1014 | &wowlan_config_cmd); | |
1015 | if (ret) | |
1016 | goto out; | |
1017 | ||
1018 | ret = iwl_mvm_send_patterns(mvm, wowlan); | |
1019 | if (ret) | |
1020 | goto out; | |
1021 | ||
1022 | ret = iwl_mvm_send_proto_offload(mvm, vif); | |
1023 | if (ret) | |
1024 | goto out; | |
1025 | ||
f0c2646a JB |
1026 | ret = iwl_mvm_send_remote_wake_cfg(mvm, vif, wowlan->tcp); |
1027 | if (ret) | |
1028 | goto out; | |
1029 | ||
ee1e8422 AB |
1030 | ret = iwl_mvm_power_update_mode(mvm, vif); |
1031 | if (ret) | |
1032 | goto out; | |
1033 | ||
b0114714 JB |
1034 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
1035 | if (mvm->d3_wake_sysassert) | |
1036 | d3_cfg_cmd_data.wakeup_flags |= | |
1037 | cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR); | |
1038 | #endif | |
1039 | ||
8ca151b5 | 1040 | /* must be last -- this switches firmware state */ |
debff618 | 1041 | ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd); |
8ca151b5 JB |
1042 | if (ret) |
1043 | goto out; | |
debff618 JB |
1044 | #ifdef CONFIG_IWLWIFI_DEBUGFS |
1045 | len = le32_to_cpu(d3_cfg_cmd.resp_pkt->len_n_flags) & | |
1046 | FH_RSCSR_FRAME_SIZE_MSK; | |
1047 | if (len >= sizeof(u32) * 2) { | |
1048 | mvm->d3_test_pme_ptr = | |
1049 | le32_to_cpup((__le32 *)d3_cfg_cmd.resp_pkt->data); | |
1050 | } else if (test) { | |
1051 | /* in test mode we require the pointer */ | |
1052 | ret = -EIO; | |
1053 | goto out; | |
1054 | } | |
1055 | #endif | |
1056 | iwl_free_resp(&d3_cfg_cmd); | |
8ca151b5 JB |
1057 | |
1058 | clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
1059 | ||
debff618 | 1060 | iwl_trans_d3_suspend(mvm->trans, test); |
8ca151b5 JB |
1061 | out: |
1062 | mvm->aux_sta.sta_id = old_aux_sta_id; | |
1063 | mvm_ap_sta->sta_id = old_ap_sta_id; | |
1064 | mvmvif->ap_sta_id = old_ap_sta_id; | |
1065 | out_noreset: | |
1066 | kfree(key_data.rsc_tsc); | |
1067 | if (ret < 0) | |
1068 | ieee80211_restart_hw(mvm->hw); | |
1069 | ||
1070 | mutex_unlock(&mvm->mutex); | |
1071 | ||
1072 | return ret; | |
1073 | } | |
1074 | ||
debff618 JB |
1075 | int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) |
1076 | { | |
1077 | return __iwl_mvm_suspend(hw, wowlan, false); | |
1078 | } | |
1079 | ||
9b26b500 JB |
1080 | static void iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm, |
1081 | struct ieee80211_vif *vif) | |
1082 | { | |
1083 | u32 base = mvm->error_event_table; | |
1084 | struct error_table_start { | |
1085 | /* cf. struct iwl_error_event_table */ | |
1086 | u32 valid; | |
1087 | u32 error_id; | |
1088 | } err_info; | |
1089 | struct cfg80211_wowlan_wakeup wakeup = { | |
1090 | .pattern_idx = -1, | |
1091 | }; | |
1092 | struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup; | |
1093 | struct iwl_host_cmd cmd = { | |
1094 | .id = WOWLAN_GET_STATUSES, | |
1095 | .flags = CMD_SYNC | CMD_WANT_SKB, | |
1096 | }; | |
1097 | struct iwl_wowlan_status *status; | |
1098 | u32 reasons; | |
1099 | int ret, len; | |
9b26b500 JB |
1100 | struct sk_buff *pkt = NULL; |
1101 | ||
1102 | iwl_trans_read_mem_bytes(mvm->trans, base, | |
1103 | &err_info, sizeof(err_info)); | |
1104 | ||
1105 | if (err_info.valid) { | |
1106 | IWL_INFO(mvm, "error table is valid (%d)\n", | |
1107 | err_info.valid); | |
1108 | if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) { | |
1109 | wakeup.rfkill_release = true; | |
1110 | ieee80211_report_wowlan_wakeup(vif, &wakeup, | |
1111 | GFP_KERNEL); | |
1112 | } | |
1113 | return; | |
1114 | } | |
1115 | ||
1116 | /* only for tracing for now */ | |
1117 | ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, CMD_SYNC, 0, NULL); | |
1118 | if (ret) | |
1119 | IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret); | |
1120 | ||
1121 | ret = iwl_mvm_send_cmd(mvm, &cmd); | |
1122 | if (ret) { | |
1123 | IWL_ERR(mvm, "failed to query status (%d)\n", ret); | |
1124 | return; | |
1125 | } | |
1126 | ||
1127 | /* RF-kill already asserted again... */ | |
1128 | if (!cmd.resp_pkt) | |
1129 | return; | |
1130 | ||
1131 | len = le32_to_cpu(cmd.resp_pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK; | |
1132 | if (len - sizeof(struct iwl_cmd_header) < sizeof(*status)) { | |
1133 | IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); | |
1134 | goto out; | |
1135 | } | |
1136 | ||
1137 | status = (void *)cmd.resp_pkt->data; | |
1138 | ||
1139 | if (len - sizeof(struct iwl_cmd_header) != | |
f444eb10 JB |
1140 | sizeof(*status) + |
1141 | ALIGN(le32_to_cpu(status->wake_packet_bufsize), 4)) { | |
9b26b500 JB |
1142 | IWL_ERR(mvm, "Invalid WoWLAN status response!\n"); |
1143 | goto out; | |
1144 | } | |
1145 | ||
1146 | reasons = le32_to_cpu(status->wakeup_reasons); | |
1147 | ||
1148 | if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) { | |
1149 | wakeup_report = NULL; | |
1150 | goto report; | |
1151 | } | |
1152 | ||
f444eb10 | 1153 | if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET) |
9b26b500 | 1154 | wakeup.magic_pkt = true; |
9b26b500 | 1155 | |
f444eb10 | 1156 | if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN) |
9b26b500 JB |
1157 | wakeup.pattern_idx = |
1158 | le16_to_cpu(status->pattern_number); | |
9b26b500 JB |
1159 | |
1160 | if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON | | |
1161 | IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH)) | |
1162 | wakeup.disconnect = true; | |
1163 | ||
f444eb10 | 1164 | if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE) |
9b26b500 | 1165 | wakeup.gtk_rekey_failure = true; |
9b26b500 | 1166 | |
f444eb10 | 1167 | if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED) |
9b26b500 | 1168 | wakeup.rfkill_release = true; |
9b26b500 | 1169 | |
f444eb10 | 1170 | if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST) |
9b26b500 | 1171 | wakeup.eap_identity_req = true; |
9b26b500 | 1172 | |
f444eb10 | 1173 | if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE) |
9b26b500 | 1174 | wakeup.four_way_handshake = true; |
9b26b500 | 1175 | |
f0c2646a JB |
1176 | if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS) |
1177 | wakeup.tcp_connlost = true; | |
1178 | ||
1179 | if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE) | |
1180 | wakeup.tcp_nomoretokens = true; | |
1181 | ||
1182 | if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET) | |
1183 | wakeup.tcp_match = true; | |
1184 | ||
9b26b500 | 1185 | if (status->wake_packet_bufsize) { |
f444eb10 JB |
1186 | int pktsize = le32_to_cpu(status->wake_packet_bufsize); |
1187 | int pktlen = le32_to_cpu(status->wake_packet_length); | |
1188 | const u8 *pktdata = status->wake_packet; | |
1189 | struct ieee80211_hdr *hdr = (void *)pktdata; | |
1190 | int truncated = pktlen - pktsize; | |
1191 | ||
1192 | /* this would be a firmware bug */ | |
1193 | if (WARN_ON_ONCE(truncated < 0)) | |
1194 | truncated = 0; | |
1195 | ||
1196 | if (ieee80211_is_data(hdr->frame_control)) { | |
1197 | int hdrlen = ieee80211_hdrlen(hdr->frame_control); | |
1198 | int ivlen = 0, icvlen = 4; /* also FCS */ | |
9b26b500 | 1199 | |
9b26b500 JB |
1200 | pkt = alloc_skb(pktsize, GFP_KERNEL); |
1201 | if (!pkt) | |
1202 | goto report; | |
f444eb10 JB |
1203 | |
1204 | memcpy(skb_put(pkt, hdrlen), pktdata, hdrlen); | |
1205 | pktdata += hdrlen; | |
1206 | pktsize -= hdrlen; | |
1207 | ||
1208 | if (ieee80211_has_protected(hdr->frame_control)) { | |
1209 | if (is_multicast_ether_addr(hdr->addr1)) { | |
1210 | ivlen = mvm->gtk_ivlen; | |
1211 | icvlen += mvm->gtk_icvlen; | |
1212 | } else { | |
1213 | ivlen = mvm->ptk_ivlen; | |
1214 | icvlen += mvm->ptk_icvlen; | |
1215 | } | |
1216 | } | |
1217 | ||
1218 | /* if truncated, FCS/ICV is (partially) gone */ | |
1219 | if (truncated >= icvlen) { | |
1220 | icvlen = 0; | |
1221 | truncated -= icvlen; | |
1222 | } else { | |
1223 | icvlen -= truncated; | |
1224 | truncated = 0; | |
1225 | } | |
1226 | ||
1227 | pktsize -= ivlen + icvlen; | |
1228 | pktdata += ivlen; | |
1229 | ||
1230 | memcpy(skb_put(pkt, pktsize), pktdata, pktsize); | |
1231 | ||
9b26b500 JB |
1232 | if (ieee80211_data_to_8023(pkt, vif->addr, vif->type)) |
1233 | goto report; | |
1234 | wakeup.packet = pkt->data; | |
1235 | wakeup.packet_present_len = pkt->len; | |
f444eb10 | 1236 | wakeup.packet_len = pkt->len - truncated; |
9b26b500 JB |
1237 | wakeup.packet_80211 = false; |
1238 | } else { | |
f444eb10 JB |
1239 | int fcslen = 4; |
1240 | ||
1241 | if (truncated >= 4) { | |
1242 | truncated -= 4; | |
1243 | fcslen = 0; | |
1244 | } else { | |
1245 | fcslen -= truncated; | |
1246 | truncated = 0; | |
1247 | } | |
1248 | pktsize -= fcslen; | |
9b26b500 JB |
1249 | wakeup.packet = status->wake_packet; |
1250 | wakeup.packet_present_len = pktsize; | |
f444eb10 | 1251 | wakeup.packet_len = pktlen - truncated; |
9b26b500 JB |
1252 | wakeup.packet_80211 = true; |
1253 | } | |
1254 | } | |
1255 | ||
1256 | report: | |
1257 | ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL); | |
1258 | kfree_skb(pkt); | |
1259 | ||
1260 | out: | |
1261 | iwl_free_resp(&cmd); | |
1262 | } | |
1263 | ||
afc66bb7 JB |
1264 | static void iwl_mvm_read_d3_sram(struct iwl_mvm *mvm) |
1265 | { | |
1266 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
1267 | const struct fw_img *img = &mvm->fw->img[IWL_UCODE_WOWLAN]; | |
1268 | u32 len = img->sec[IWL_UCODE_SECTION_DATA].len; | |
1269 | u32 offs = img->sec[IWL_UCODE_SECTION_DATA].offset; | |
1270 | ||
1271 | if (!mvm->store_d3_resume_sram) | |
1272 | return; | |
1273 | ||
1274 | if (!mvm->d3_resume_sram) { | |
1275 | mvm->d3_resume_sram = kzalloc(len, GFP_KERNEL); | |
1276 | if (!mvm->d3_resume_sram) | |
1277 | return; | |
1278 | } | |
1279 | ||
1280 | iwl_trans_read_mem_bytes(mvm->trans, offs, mvm->d3_resume_sram, len); | |
1281 | #endif | |
1282 | } | |
1283 | ||
debff618 | 1284 | static int __iwl_mvm_resume(struct iwl_mvm *mvm, bool test) |
8ca151b5 | 1285 | { |
8ca151b5 JB |
1286 | struct iwl_d3_iter_data resume_iter_data = { |
1287 | .mvm = mvm, | |
1288 | }; | |
1289 | struct ieee80211_vif *vif = NULL; | |
8ca151b5 JB |
1290 | int ret; |
1291 | enum iwl_d3_status d3_status; | |
8ca151b5 JB |
1292 | |
1293 | mutex_lock(&mvm->mutex); | |
1294 | ||
1295 | /* get the BSS vif pointer again */ | |
1296 | ieee80211_iterate_active_interfaces_atomic( | |
1297 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
1298 | iwl_mvm_d3_iface_iterator, &resume_iter_data); | |
1299 | ||
1300 | if (WARN_ON(resume_iter_data.error || !resume_iter_data.vif)) | |
1301 | goto out_unlock; | |
1302 | ||
1303 | vif = resume_iter_data.vif; | |
1304 | ||
debff618 | 1305 | ret = iwl_trans_d3_resume(mvm->trans, &d3_status, test); |
8ca151b5 JB |
1306 | if (ret) |
1307 | goto out_unlock; | |
1308 | ||
1309 | if (d3_status != IWL_D3_STATUS_ALIVE) { | |
1310 | IWL_INFO(mvm, "Device was reset during suspend\n"); | |
1311 | goto out_unlock; | |
1312 | } | |
1313 | ||
afc66bb7 JB |
1314 | /* query SRAM first in case we want event logging */ |
1315 | iwl_mvm_read_d3_sram(mvm); | |
1316 | ||
9b26b500 | 1317 | iwl_mvm_query_wakeup_reasons(mvm, vif); |
8ca151b5 JB |
1318 | |
1319 | out_unlock: | |
1320 | mutex_unlock(&mvm->mutex); | |
1321 | ||
debff618 | 1322 | if (!test && vif) |
8ca151b5 JB |
1323 | ieee80211_resume_disconnect(vif); |
1324 | ||
1325 | /* return 1 to reconfigure the device */ | |
1326 | set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status); | |
1327 | return 1; | |
1328 | } | |
1329 | ||
debff618 JB |
1330 | int iwl_mvm_resume(struct ieee80211_hw *hw) |
1331 | { | |
1332 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1333 | ||
1334 | return __iwl_mvm_resume(mvm, false); | |
1335 | } | |
1336 | ||
8ca151b5 JB |
1337 | void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled) |
1338 | { | |
1339 | struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); | |
1340 | ||
1341 | device_set_wakeup_enable(mvm->trans->dev, enabled); | |
1342 | } | |
debff618 JB |
1343 | |
1344 | #ifdef CONFIG_IWLWIFI_DEBUGFS | |
1345 | static int iwl_mvm_d3_test_open(struct inode *inode, struct file *file) | |
1346 | { | |
1347 | struct iwl_mvm *mvm = inode->i_private; | |
1348 | int err; | |
1349 | ||
1350 | if (mvm->d3_test_active) | |
1351 | return -EBUSY; | |
1352 | ||
1353 | file->private_data = inode->i_private; | |
1354 | ||
1355 | ieee80211_stop_queues(mvm->hw); | |
1356 | synchronize_net(); | |
1357 | ||
1358 | /* start pseudo D3 */ | |
1359 | rtnl_lock(); | |
1360 | err = __iwl_mvm_suspend(mvm->hw, mvm->hw->wiphy->wowlan_config, true); | |
1361 | rtnl_unlock(); | |
1362 | if (err > 0) | |
1363 | err = -EINVAL; | |
1364 | if (err) { | |
1365 | ieee80211_wake_queues(mvm->hw); | |
1366 | return err; | |
1367 | } | |
1368 | mvm->d3_test_active = true; | |
1369 | return 0; | |
1370 | } | |
1371 | ||
1372 | static ssize_t iwl_mvm_d3_test_read(struct file *file, char __user *user_buf, | |
1373 | size_t count, loff_t *ppos) | |
1374 | { | |
1375 | struct iwl_mvm *mvm = file->private_data; | |
1376 | u32 pme_asserted; | |
1377 | ||
1378 | while (true) { | |
1379 | pme_asserted = iwl_trans_read_mem32(mvm->trans, | |
1380 | mvm->d3_test_pme_ptr); | |
1381 | if (pme_asserted) | |
1382 | break; | |
1383 | if (msleep_interruptible(100)) | |
1384 | break; | |
1385 | } | |
1386 | ||
1387 | return 0; | |
1388 | } | |
1389 | ||
1390 | static void iwl_mvm_d3_test_disconn_work_iter(void *_data, u8 *mac, | |
1391 | struct ieee80211_vif *vif) | |
1392 | { | |
1393 | if (vif->type == NL80211_IFTYPE_STATION) | |
1394 | ieee80211_connection_loss(vif); | |
1395 | } | |
1396 | ||
1397 | static int iwl_mvm_d3_test_release(struct inode *inode, struct file *file) | |
1398 | { | |
1399 | struct iwl_mvm *mvm = inode->i_private; | |
1400 | int remaining_time = 10; | |
1401 | ||
1402 | mvm->d3_test_active = false; | |
1403 | __iwl_mvm_resume(mvm, true); | |
1404 | iwl_abort_notification_waits(&mvm->notif_wait); | |
1405 | ieee80211_restart_hw(mvm->hw); | |
1406 | ||
1407 | /* wait for restart and disconnect all interfaces */ | |
1408 | while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status) && | |
1409 | remaining_time > 0) { | |
1410 | remaining_time--; | |
1411 | msleep(1000); | |
1412 | } | |
1413 | ||
1414 | if (remaining_time == 0) | |
1415 | IWL_ERR(mvm, "Timed out waiting for HW restart to finish!\n"); | |
1416 | ||
1417 | ieee80211_iterate_active_interfaces_atomic( | |
1418 | mvm->hw, IEEE80211_IFACE_ITER_NORMAL, | |
1419 | iwl_mvm_d3_test_disconn_work_iter, NULL); | |
1420 | ||
1421 | ieee80211_wake_queues(mvm->hw); | |
1422 | ||
1423 | return 0; | |
1424 | } | |
1425 | ||
1426 | const struct file_operations iwl_dbgfs_d3_test_ops = { | |
1427 | .llseek = no_llseek, | |
1428 | .open = iwl_mvm_d3_test_open, | |
1429 | .read = iwl_mvm_d3_test_read, | |
1430 | .release = iwl_mvm_d3_test_release, | |
1431 | }; | |
1432 | #endif |