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iwlwifi: add new 7260 and 3160 series device IDs
[linux-2.6-block.git] / drivers / net / wireless / iwlwifi / mvm / d3.c
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8ca151b5
JB		 1/******************************************************************************
2 *
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
5 *
6 * GPL LICENSE SUMMARY
7 *
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>
8ca151b5
JB		 66#include <net/cfg80211.h>
67#include <net/ipv6.h>
f0c2646a 68#include <net/tcp.h>
8ca151b5
JB		 69#include "iwl-modparams.h"
70#include "fw-api.h"
71#include "mvm.h"
72
73void iwl_mvm_set_rekey_data(struct ieee80211_hw *hw,
74 struct ieee80211_vif *vif,
75 struct cfg80211_gtk_rekey_data *data)
76{
77 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
78 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
79
80 if (iwlwifi_mod_params.sw_crypto)
81 return;
82
83 mutex_lock(&mvm->mutex);
84
85 memcpy(mvmvif->rekey_data.kek, data->kek, NL80211_KEK_LEN);
86 memcpy(mvmvif->rekey_data.kck, data->kck, NL80211_KCK_LEN);
87 mvmvif->rekey_data.replay_ctr =
88 cpu_to_le64(be64_to_cpup((__be64 *)&data->replay_ctr));
89 mvmvif->rekey_data.valid = true;
90
91 mutex_unlock(&mvm->mutex);
92}
93
94#if IS_ENABLED(CONFIG_IPV6)
95void iwl_mvm_ipv6_addr_change(struct ieee80211_hw *hw,
96 struct ieee80211_vif *vif,
97 struct inet6_dev *idev)
98{
99 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
100 struct inet6_ifaddr *ifa;
101 int idx = 0;
102
a3777e0f 103 read_lock_bh(&idev->lock);
8ca151b5
JB		 104 list_for_each_entry(ifa, &idev->addr_list, if_list) {
105 mvmvif->target_ipv6_addrs[idx] = ifa->addr;
106 idx++;
107 if (idx >= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS)
108 break;
109 }
a3777e0f 110 read_unlock_bh(&idev->lock);
8ca151b5
JB		 111
112 mvmvif->num_target_ipv6_addrs = idx;
113}
114#endif
115
116void iwl_mvm_set_default_unicast_key(struct ieee80211_hw *hw,
117 struct ieee80211_vif *vif, int idx)
118{
119 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
120
121 mvmvif->tx_key_idx = idx;
122}
123
124static void iwl_mvm_convert_p1k(u16 *p1k, __le16 *out)
125{
126 int i;
127
128 for (i = 0; i < IWL_P1K_SIZE; i++)
129 out[i] = cpu_to_le16(p1k[i]);
130}
131
132struct wowlan_key_data {
133 struct iwl_wowlan_rsc_tsc_params_cmd *rsc_tsc;
134 struct iwl_wowlan_tkip_params_cmd *tkip;
135 bool error, use_rsc_tsc, use_tkip;
136 int gtk_key_idx;
137};
138
139static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw *hw,
140 struct ieee80211_vif *vif,
141 struct ieee80211_sta *sta,
142 struct ieee80211_key_conf *key,
143 void *_data)
144{
145 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
146 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
147 struct wowlan_key_data *data = _data;
148 struct aes_sc *aes_sc, *aes_tx_sc = NULL;
149 struct tkip_sc *tkip_sc, *tkip_tx_sc = NULL;
150 struct iwl_p1k_cache *rx_p1ks;
151 u8 *rx_mic_key;
152 struct ieee80211_key_seq seq;
153 u32 cur_rx_iv32 = 0;
154 u16 p1k[IWL_P1K_SIZE];
155 int ret, i;
156
157 mutex_lock(&mvm->mutex);
158
159 switch (key->cipher) {
160 case WLAN_CIPHER_SUITE_WEP40:
161 case WLAN_CIPHER_SUITE_WEP104: { /* hack it for now */
162 struct {
163 struct iwl_mvm_wep_key_cmd wep_key_cmd;
164 struct iwl_mvm_wep_key wep_key;
165 } __packed wkc = {
166 .wep_key_cmd.mac_id_n_color =
167 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
168 mvmvif->color)),
169 .wep_key_cmd.num_keys = 1,
170 /* firmware sets STA_KEY_FLG_WEP_13BYTES */
171 .wep_key_cmd.decryption_type = STA_KEY_FLG_WEP,
172 .wep_key.key_index = key->keyidx,
173 .wep_key.key_size = key->keylen,
174 };
175
176 /*
177 * This will fail -- the key functions don't set support
178 * pairwise WEP keys. However, that's better than silently
179 * failing WoWLAN. Or maybe not?
180 */
181 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE)
182 break;
183
184 memcpy(&wkc.wep_key.key[3], key->key, key->keylen);
185 if (key->keyidx == mvmvif->tx_key_idx) {
186 /* TX key must be at offset 0 */
187 wkc.wep_key.key_offset = 0;
188 } else {
189 /* others start at 1 */
190 data->gtk_key_idx++;
191 wkc.wep_key.key_offset = data->gtk_key_idx;
192 }
193
194 ret = iwl_mvm_send_cmd_pdu(mvm, WEP_KEY, CMD_SYNC,
195 sizeof(wkc), &wkc);
196 data->error = ret != 0;
197
f444eb10
JB		 198 mvm->ptk_ivlen = key->iv_len;
199 mvm->ptk_icvlen = key->icv_len;
200 mvm->gtk_ivlen = key->iv_len;
201 mvm->gtk_icvlen = key->icv_len;
202
8ca151b5
JB		 203 /* don't upload key again */
204 goto out_unlock;
205 }
206 default:
207 data->error = true;
208 goto out_unlock;
209 case WLAN_CIPHER_SUITE_AES_CMAC:
210 /*
211 * Ignore CMAC keys -- the WoWLAN firmware doesn't support them
212 * but we also shouldn't abort suspend due to that. It does have
213 * support for the IGTK key renewal, but doesn't really use the
214 * IGTK for anything. This means we could spuriously wake up or
215 * be deauthenticated, but that was considered acceptable.
216 */
217 goto out_unlock;
218 case WLAN_CIPHER_SUITE_TKIP:
219 if (sta) {
220 tkip_sc = data->rsc_tsc->all_tsc_rsc.tkip.unicast_rsc;
221 tkip_tx_sc = &data->rsc_tsc->all_tsc_rsc.tkip.tsc;
222
223 rx_p1ks = data->tkip->rx_uni;
224
225 ieee80211_get_key_tx_seq(key, &seq);
226 tkip_tx_sc->iv16 = cpu_to_le16(seq.tkip.iv16);
227 tkip_tx_sc->iv32 = cpu_to_le32(seq.tkip.iv32);
228
229 ieee80211_get_tkip_p1k_iv(key, seq.tkip.iv32, p1k);
230 iwl_mvm_convert_p1k(p1k, data->tkip->tx.p1k);
231
232 memcpy(data->tkip->mic_keys.tx,
233 &key->key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY],
234 IWL_MIC_KEY_SIZE);
235
236 rx_mic_key = data->tkip->mic_keys.rx_unicast;
237 } else {
238 tkip_sc =
239 data->rsc_tsc->all_tsc_rsc.tkip.multicast_rsc;
240 rx_p1ks = data->tkip->rx_multi;
241 rx_mic_key = data->tkip->mic_keys.rx_mcast;
242 }
243
244 /*
245 * For non-QoS this relies on the fact that both the uCode and
246 * mac80211 use TID 0 (as they need to to avoid replay attacks)
247 * for checking the IV in the frames.
248 */
249 for (i = 0; i < IWL_NUM_RSC; i++) {
250 ieee80211_get_key_rx_seq(key, i, &seq);
251 tkip_sc[i].iv16 = cpu_to_le16(seq.tkip.iv16);
252 tkip_sc[i].iv32 = cpu_to_le32(seq.tkip.iv32);
253 /* wrapping isn't allowed, AP must rekey */
254 if (seq.tkip.iv32 > cur_rx_iv32)
255 cur_rx_iv32 = seq.tkip.iv32;
256 }
257
258 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
259 cur_rx_iv32, p1k);
260 iwl_mvm_convert_p1k(p1k, rx_p1ks[0].p1k);
261 ieee80211_get_tkip_rx_p1k(key, vif->bss_conf.bssid,
262 cur_rx_iv32 + 1, p1k);
263 iwl_mvm_convert_p1k(p1k, rx_p1ks[1].p1k);
264
265 memcpy(rx_mic_key,
266 &key->key[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY],
267 IWL_MIC_KEY_SIZE);
268
269 data->use_tkip = true;
270 data->use_rsc_tsc = true;
271 break;
272 case WLAN_CIPHER_SUITE_CCMP:
273 if (sta) {
274 u8 *pn = seq.ccmp.pn;
275
276 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.unicast_rsc;
277 aes_tx_sc = &data->rsc_tsc->all_tsc_rsc.aes.tsc;
278
279 ieee80211_get_key_tx_seq(key, &seq);
280 aes_tx_sc->pn = cpu_to_le64((u64)pn[5] |
281 ((u64)pn[4] << 8) |
282 ((u64)pn[3] << 16) |
283 ((u64)pn[2] << 24) |
284 ((u64)pn[1] << 32) |
285 ((u64)pn[0] << 40));
286 } else {
287 aes_sc = data->rsc_tsc->all_tsc_rsc.aes.multicast_rsc;
288 }
289
290 /*
291 * For non-QoS this relies on the fact that both the uCode and
292 * mac80211 use TID 0 for checking the IV in the frames.
293 */
294 for (i = 0; i < IWL_NUM_RSC; i++) {
295 u8 *pn = seq.ccmp.pn;
296
297 ieee80211_get_key_rx_seq(key, i, &seq);
298 aes_sc->pn = cpu_to_le64((u64)pn[5] |
299 ((u64)pn[4] << 8) |
300 ((u64)pn[3] << 16) |
301 ((u64)pn[2] << 24) |
302 ((u64)pn[1] << 32) |
303 ((u64)pn[0] << 40));
304 }
305 data->use_rsc_tsc = true;
306 break;
307 }
308
309 /*
310 * The D3 firmware hardcodes the key offset 0 as the key it uses
311 * to transmit packets to the AP, i.e. the PTK.
312 */
313 if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
314 key->hw_key_idx = 0;
f444eb10
JB		 315 mvm->ptk_ivlen = key->iv_len;
316 mvm->ptk_icvlen = key->icv_len;
8ca151b5
JB		 317 } else {
318 data->gtk_key_idx++;
319 key->hw_key_idx = data->gtk_key_idx;
f444eb10
JB		 320 mvm->gtk_ivlen = key->iv_len;
321 mvm->gtk_icvlen = key->icv_len;
8ca151b5
JB		 322 }
323
324 ret = iwl_mvm_set_sta_key(mvm, vif, sta, key, true);
325 data->error = ret != 0;
326out_unlock:
327 mutex_unlock(&mvm->mutex);
328}
329
330static int iwl_mvm_send_patterns(struct iwl_mvm *mvm,
331 struct cfg80211_wowlan *wowlan)
332{
333 struct iwl_wowlan_patterns_cmd *pattern_cmd;
334 struct iwl_host_cmd cmd = {
335 .id = WOWLAN_PATTERNS,
336 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
337 .flags = CMD_SYNC,
338 };
339 int i, err;
340
341 if (!wowlan->n_patterns)
342 return 0;
343
344 cmd.len[0] = sizeof(*pattern_cmd) +
345 wowlan->n_patterns * sizeof(struct iwl_wowlan_pattern);
346
347 pattern_cmd = kmalloc(cmd.len[0], GFP_KERNEL);
348 if (!pattern_cmd)
349 return -ENOMEM;
350
351 pattern_cmd->n_patterns = cpu_to_le32(wowlan->n_patterns);
352
353 for (i = 0; i < wowlan->n_patterns; i++) {
354 int mask_len = DIV_ROUND_UP(wowlan->patterns[i].pattern_len, 8);
355
356 memcpy(&pattern_cmd->patterns[i].mask,
357 wowlan->patterns[i].mask, mask_len);
358 memcpy(&pattern_cmd->patterns[i].pattern,
359 wowlan->patterns[i].pattern,
360 wowlan->patterns[i].pattern_len);
361 pattern_cmd->patterns[i].mask_size = mask_len;
362 pattern_cmd->patterns[i].pattern_size =
363 wowlan->patterns[i].pattern_len;
364 }
365
366 cmd.data[0] = pattern_cmd;
367 err = iwl_mvm_send_cmd(mvm, &cmd);
368 kfree(pattern_cmd);
369 return err;
370}
371
372static int iwl_mvm_send_proto_offload(struct iwl_mvm *mvm,
373 struct ieee80211_vif *vif)
374{
375 struct iwl_proto_offload_cmd cmd = {};
376#if IS_ENABLED(CONFIG_IPV6)
377 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
378 int i;
379
380 if (mvmvif->num_target_ipv6_addrs) {
381 cmd.enabled |= cpu_to_le32(IWL_D3_PROTO_OFFLOAD_NS);
382 memcpy(cmd.ndp_mac_addr, vif->addr, ETH_ALEN);
383 }
384
385 BUILD_BUG_ON(sizeof(cmd.target_ipv6_addr[i]) !=
386 sizeof(mvmvif->target_ipv6_addrs[i]));
387
388 for (i = 0; i < mvmvif->num_target_ipv6_addrs; i++)
389 memcpy(cmd.target_ipv6_addr[i],
390 &mvmvif->target_ipv6_addrs[i],
391 sizeof(cmd.target_ipv6_addr[i]));
392#endif
393
394 if (vif->bss_conf.arp_addr_cnt) {
395 cmd.enabled |= cpu_to_le32(IWL_D3_PROTO_OFFLOAD_ARP);
396 cmd.host_ipv4_addr = vif->bss_conf.arp_addr_list[0];
397 memcpy(cmd.arp_mac_addr, vif->addr, ETH_ALEN);
398 }
399
400 if (!cmd.enabled)
401 return 0;
402
403 return iwl_mvm_send_cmd_pdu(mvm, PROT_OFFLOAD_CONFIG_CMD, CMD_SYNC,
404 sizeof(cmd), &cmd);
405}
406
f0c2646a
JB		 407enum iwl_mvm_tcp_packet_type {
408 MVM_TCP_TX_SYN,
409 MVM_TCP_RX_SYNACK,
410 MVM_TCP_TX_DATA,
411 MVM_TCP_RX_ACK,
412 MVM_TCP_RX_WAKE,
413 MVM_TCP_TX_FIN,
414};
415
416static __le16 pseudo_hdr_check(int len, __be32 saddr, __be32 daddr)
417{
418 __sum16 check = tcp_v4_check(len, saddr, daddr, 0);
419 return cpu_to_le16(be16_to_cpu((__force __be16)check));
420}
421
422static void iwl_mvm_build_tcp_packet(struct iwl_mvm *mvm,
423 struct ieee80211_vif *vif,
424 struct cfg80211_wowlan_tcp *tcp,
425 void *_pkt, u8 *mask,
426 __le16 *pseudo_hdr_csum,
427 enum iwl_mvm_tcp_packet_type ptype)
428{
429 struct {
430 struct ethhdr eth;
431 struct iphdr ip;
432 struct tcphdr tcp;
433 u8 data[];
434 } __packed *pkt = _pkt;
435 u16 ip_tot_len = sizeof(struct iphdr) + sizeof(struct tcphdr);
436 int i;
437
438 pkt->eth.h_proto = cpu_to_be16(ETH_P_IP),
439 pkt->ip.version = 4;
440 pkt->ip.ihl = 5;
441 pkt->ip.protocol = IPPROTO_TCP;
442
443 switch (ptype) {
444 case MVM_TCP_TX_SYN:
445 case MVM_TCP_TX_DATA:
446 case MVM_TCP_TX_FIN:
447 memcpy(pkt->eth.h_dest, tcp->dst_mac, ETH_ALEN);
448 memcpy(pkt->eth.h_source, vif->addr, ETH_ALEN);
449 pkt->ip.ttl = 128;
450 pkt->ip.saddr = tcp->src;
451 pkt->ip.daddr = tcp->dst;
452 pkt->tcp.source = cpu_to_be16(tcp->src_port);
453 pkt->tcp.dest = cpu_to_be16(tcp->dst_port);
454 /* overwritten for TX SYN later */
455 pkt->tcp.doff = sizeof(struct tcphdr) / 4;
456 pkt->tcp.window = cpu_to_be16(65000);
457 break;
458 case MVM_TCP_RX_SYNACK:
459 case MVM_TCP_RX_ACK:
460 case MVM_TCP_RX_WAKE:
461 memcpy(pkt->eth.h_dest, vif->addr, ETH_ALEN);
462 memcpy(pkt->eth.h_source, tcp->dst_mac, ETH_ALEN);
463 pkt->ip.saddr = tcp->dst;
464 pkt->ip.daddr = tcp->src;
465 pkt->tcp.source = cpu_to_be16(tcp->dst_port);
466 pkt->tcp.dest = cpu_to_be16(tcp->src_port);
467 break;
468 default:
469 WARN_ON(1);
470 return;
471 }
472
473 switch (ptype) {
474 case MVM_TCP_TX_SYN:
475 /* firmware assumes 8 option bytes - 8 NOPs for now */
476 memset(pkt->data, 0x01, 8);
477 ip_tot_len += 8;
478 pkt->tcp.doff = (sizeof(struct tcphdr) + 8) / 4;
479 pkt->tcp.syn = 1;
480 break;
481 case MVM_TCP_TX_DATA:
482 ip_tot_len += tcp->payload_len;
483 memcpy(pkt->data, tcp->payload, tcp->payload_len);
484 pkt->tcp.psh = 1;
485 pkt->tcp.ack = 1;
486 break;
487 case MVM_TCP_TX_FIN:
488 pkt->tcp.fin = 1;
489 pkt->tcp.ack = 1;
490 break;
491 case MVM_TCP_RX_SYNACK:
492 pkt->tcp.syn = 1;
493 pkt->tcp.ack = 1;
494 break;
495 case MVM_TCP_RX_ACK:
496 pkt->tcp.ack = 1;
497 break;
498 case MVM_TCP_RX_WAKE:
499 ip_tot_len += tcp->wake_len;
500 pkt->tcp.psh = 1;
501 pkt->tcp.ack = 1;
502 memcpy(pkt->data, tcp->wake_data, tcp->wake_len);
503 break;
504 }
505
506 switch (ptype) {
507 case MVM_TCP_TX_SYN:
508 case MVM_TCP_TX_DATA:
509 case MVM_TCP_TX_FIN:
510 pkt->ip.tot_len = cpu_to_be16(ip_tot_len);
511 pkt->ip.check = ip_fast_csum(&pkt->ip, pkt->ip.ihl);
512 break;
513 case MVM_TCP_RX_WAKE:
514 for (i = 0; i < DIV_ROUND_UP(tcp->wake_len, 8); i++) {
515 u8 tmp = tcp->wake_mask[i];
516 mask[i + 6] |= tmp << 6;
517 if (i + 1 < DIV_ROUND_UP(tcp->wake_len, 8))
518 mask[i + 7] = tmp >> 2;
519 }
520 /* fall through for ethernet/IP/TCP headers mask */
521 case MVM_TCP_RX_SYNACK:
522 case MVM_TCP_RX_ACK:
523 mask[0] = 0xff; /* match ethernet */
524 /*
525 * match ethernet, ip.version, ip.ihl
526 * the ip.ihl half byte is really masked out by firmware
527 */
528 mask[1] = 0x7f;
529 mask[2] = 0x80; /* match ip.protocol */
530 mask[3] = 0xfc; /* match ip.saddr, ip.daddr */
531 mask[4] = 0x3f; /* match ip.daddr, tcp.source, tcp.dest */
532 mask[5] = 0x80; /* match tcp flags */
533 /* leave rest (0 or set for MVM_TCP_RX_WAKE) */
534 break;
535 };
536
537 *pseudo_hdr_csum = pseudo_hdr_check(ip_tot_len - sizeof(struct iphdr),
538 pkt->ip.saddr, pkt->ip.daddr);
539}
540
541static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm *mvm,
542 struct ieee80211_vif *vif,
543 struct cfg80211_wowlan_tcp *tcp)
544{
545 struct iwl_wowlan_remote_wake_config *cfg;
546 struct iwl_host_cmd cmd = {
547 .id = REMOTE_WAKE_CONFIG_CMD,
548 .len = { sizeof(*cfg), },
549 .dataflags = { IWL_HCMD_DFL_NOCOPY, },
550 .flags = CMD_SYNC,
551 };
552 int ret;
553
554 if (!tcp)
555 return 0;
556
557 cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
558 if (!cfg)
559 return -ENOMEM;
560 cmd.data[0] = cfg;
561
562 cfg->max_syn_retries = 10;
563 cfg->max_data_retries = 10;
564 cfg->tcp_syn_ack_timeout = 1; /* seconds */
565 cfg->tcp_ack_timeout = 1; /* seconds */
566
567 /* SYN (TX) */
568 iwl_mvm_build_tcp_packet(
569 mvm, vif, tcp, cfg->syn_tx.data, NULL,
570 &cfg->syn_tx.info.tcp_pseudo_header_checksum,
571 MVM_TCP_TX_SYN);
572 cfg->syn_tx.info.tcp_payload_length = 0;
573
574 /* SYN/ACK (RX) */
575 iwl_mvm_build_tcp_packet(
576 mvm, vif, tcp, cfg->synack_rx.data, cfg->synack_rx.rx_mask,
577 &cfg->synack_rx.info.tcp_pseudo_header_checksum,
578 MVM_TCP_RX_SYNACK);
579 cfg->synack_rx.info.tcp_payload_length = 0;
580
581 /* KEEPALIVE/ACK (TX) */
582 iwl_mvm_build_tcp_packet(
583 mvm, vif, tcp, cfg->keepalive_tx.data, NULL,
584 &cfg->keepalive_tx.info.tcp_pseudo_header_checksum,
585 MVM_TCP_TX_DATA);
586 cfg->keepalive_tx.info.tcp_payload_length =
587 cpu_to_le16(tcp->payload_len);
588 cfg->sequence_number_offset = tcp->payload_seq.offset;
589 /* length must be 0..4, the field is little endian */
590 cfg->sequence_number_length = tcp->payload_seq.len;
591 cfg->initial_sequence_number = cpu_to_le32(tcp->payload_seq.start);
592 cfg->keepalive_interval = cpu_to_le16(tcp->data_interval);
593 if (tcp->payload_tok.len) {
594 cfg->token_offset = tcp->payload_tok.offset;
595 cfg->token_length = tcp->payload_tok.len;
596 cfg->num_tokens =
597 cpu_to_le16(tcp->tokens_size % tcp->payload_tok.len);
598 memcpy(cfg->tokens, tcp->payload_tok.token_stream,
599 tcp->tokens_size);
600 } else {
601 /* set tokens to max value to almost never run out */
602 cfg->num_tokens = cpu_to_le16(65535);
603 }
604
605 /* ACK (RX) */
606 iwl_mvm_build_tcp_packet(
607 mvm, vif, tcp, cfg->keepalive_ack_rx.data,
608 cfg->keepalive_ack_rx.rx_mask,
609 &cfg->keepalive_ack_rx.info.tcp_pseudo_header_checksum,
610 MVM_TCP_RX_ACK);
611 cfg->keepalive_ack_rx.info.tcp_payload_length = 0;
612
613 /* WAKEUP (RX) */
614 iwl_mvm_build_tcp_packet(
615 mvm, vif, tcp, cfg->wake_rx.data, cfg->wake_rx.rx_mask,
616 &cfg->wake_rx.info.tcp_pseudo_header_checksum,
617 MVM_TCP_RX_WAKE);
618 cfg->wake_rx.info.tcp_payload_length =
619 cpu_to_le16(tcp->wake_len);
620
621 /* FIN */
622 iwl_mvm_build_tcp_packet(
623 mvm, vif, tcp, cfg->fin_tx.data, NULL,
624 &cfg->fin_tx.info.tcp_pseudo_header_checksum,
625 MVM_TCP_TX_FIN);
626 cfg->fin_tx.info.tcp_payload_length = 0;
627
628 ret = iwl_mvm_send_cmd(mvm, &cmd);
629 kfree(cfg);
630
631 return ret;
632}
633
8ca151b5
JB		 634struct iwl_d3_iter_data {
635 struct iwl_mvm *mvm;
636 struct ieee80211_vif *vif;
637 bool error;
638};
639
640static void iwl_mvm_d3_iface_iterator(void *_data, u8 *mac,
641 struct ieee80211_vif *vif)
642{
643 struct iwl_d3_iter_data *data = _data;
644 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
645
646 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p)
647 return;
648
649 if (mvmvif->ap_sta_id == IWL_MVM_STATION_COUNT)
650 return;
651
652 if (data->vif) {
653 IWL_ERR(data->mvm, "More than one managed interface active!\n");
654 data->error = true;
655 return;
656 }
657
658 data->vif = vif;
659}
660
661static int iwl_mvm_d3_reprogram(struct iwl_mvm *mvm, struct ieee80211_vif *vif,
662 struct ieee80211_sta *ap_sta)
663{
664 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
665 struct ieee80211_chanctx_conf *ctx;
666 u8 chains_static, chains_dynamic;
667 struct cfg80211_chan_def chandef;
668 int ret, i;
669 struct iwl_binding_cmd binding_cmd = {};
670 struct iwl_time_quota_cmd quota_cmd = {};
671 u32 status;
672
673 /* add back the PHY */
674 if (WARN_ON(!mvmvif->phy_ctxt))
675 return -EINVAL;
676
677 rcu_read_lock();
678 ctx = rcu_dereference(vif->chanctx_conf);
679 if (WARN_ON(!ctx)) {
680 rcu_read_unlock();
681 return -EINVAL;
682 }
683 chandef = ctx->def;
684 chains_static = ctx->rx_chains_static;
685 chains_dynamic = ctx->rx_chains_dynamic;
686 rcu_read_unlock();
687
688 ret = iwl_mvm_phy_ctxt_add(mvm, mvmvif->phy_ctxt, &chandef,
689 chains_static, chains_dynamic);
690 if (ret)
691 return ret;
692
693 /* add back the MAC */
694 mvmvif->uploaded = false;
695
696 if (WARN_ON(!vif->bss_conf.assoc))
697 return -EINVAL;
698 /* hack */
699 vif->bss_conf.assoc = false;
700 ret = iwl_mvm_mac_ctxt_add(mvm, vif);
701 vif->bss_conf.assoc = true;
702 if (ret)
703 return ret;
704
705 /* add back binding - XXX refactor? */
706 binding_cmd.id_and_color =
707 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
708 mvmvif->phy_ctxt->color));
709 binding_cmd.action = cpu_to_le32(FW_CTXT_ACTION_ADD);
710 binding_cmd.phy =
711 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
712 mvmvif->phy_ctxt->color));
713 binding_cmd.macs[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->id,
714 mvmvif->color));
715 for (i = 1; i < MAX_MACS_IN_BINDING; i++)
716 binding_cmd.macs[i] = cpu_to_le32(FW_CTXT_INVALID);
717
718 status = 0;
719 ret = iwl_mvm_send_cmd_pdu_status(mvm, BINDING_CONTEXT_CMD,
720 sizeof(binding_cmd), &binding_cmd,
721 &status);
722 if (ret) {
723 IWL_ERR(mvm, "Failed to add binding: %d\n", ret);
724 return ret;
725 }
726
727 if (status) {
728 IWL_ERR(mvm, "Binding command failed: %u\n", status);
729 return -EIO;
730 }
731
7a453973 732 ret = iwl_mvm_sta_send_to_fw(mvm, ap_sta, false);
8ca151b5
JB		 733 if (ret)
734 return ret;
735 rcu_assign_pointer(mvm->fw_id_to_mac_id[mvmvif->ap_sta_id], ap_sta);
736
737 ret = iwl_mvm_mac_ctxt_changed(mvm, vif);
738 if (ret)
739 return ret;
740
741 /* and some quota */
742 quota_cmd.quotas[0].id_and_color =
743 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif->phy_ctxt->id,
744 mvmvif->phy_ctxt->color));
745 quota_cmd.quotas[0].quota = cpu_to_le32(100);
746 quota_cmd.quotas[0].max_duration = cpu_to_le32(1000);
747
748 for (i = 1; i < MAX_BINDINGS; i++)
749 quota_cmd.quotas[i].id_and_color = cpu_to_le32(FW_CTXT_INVALID);
750
751 ret = iwl_mvm_send_cmd_pdu(mvm, TIME_QUOTA_CMD, CMD_SYNC,
752 sizeof(quota_cmd), &quota_cmd);
753 if (ret)
754 IWL_ERR(mvm, "Failed to send quota: %d\n", ret);
755
756 return 0;
757}
758
759int iwl_mvm_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan)
760{
761 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
762 struct iwl_d3_iter_data suspend_iter_data = {
763 .mvm = mvm,
764 };
765 struct ieee80211_vif *vif;
766 struct iwl_mvm_vif *mvmvif;
767 struct ieee80211_sta *ap_sta;
768 struct iwl_mvm_sta *mvm_ap_sta;
769 struct iwl_wowlan_config_cmd wowlan_config_cmd = {};
770 struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd = {};
771 struct iwl_wowlan_tkip_params_cmd tkip_cmd = {};
c920487d
JB		 772 struct iwl_d3_manager_config d3_cfg_cmd = {
773 /*
774 * Program the minimum sleep time to 10 seconds, as many
775 * platforms have issues processing a wakeup signal while
776 * still being in the process of suspending.
777 */
778 .min_sleep_time = cpu_to_le32(10 * 1000 * 1000),
779 };
8ca151b5
JB		 780 struct wowlan_key_data key_data = {
781 .use_rsc_tsc = false,
782 .tkip = &tkip_cmd,
783 .use_tkip = false,
784 };
785 int ret, i;
786 u16 seq;
787 u8 old_aux_sta_id, old_ap_sta_id = IWL_MVM_STATION_COUNT;
788
789 if (WARN_ON(!wowlan))
790 return -EINVAL;
791
792 key_data.rsc_tsc = kzalloc(sizeof(*key_data.rsc_tsc), GFP_KERNEL);
793 if (!key_data.rsc_tsc)
794 return -ENOMEM;
795
796 mutex_lock(&mvm->mutex);
797
798 old_aux_sta_id = mvm->aux_sta.sta_id;
799
800 /* see if there's only a single BSS vif and it's associated */
801 ieee80211_iterate_active_interfaces_atomic(
802 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
803 iwl_mvm_d3_iface_iterator, &suspend_iter_data);
804
805 if (suspend_iter_data.error || !suspend_iter_data.vif) {
806 ret = 1;
807 goto out_noreset;
808 }
809
810 vif = suspend_iter_data.vif;
811 mvmvif = iwl_mvm_vif_from_mac80211(vif);
812
813 ap_sta = rcu_dereference_protected(
814 mvm->fw_id_to_mac_id[mvmvif->ap_sta_id],
815 lockdep_is_held(&mvm->mutex));
816 if (IS_ERR_OR_NULL(ap_sta)) {
817 ret = -EINVAL;
818 goto out_noreset;
819 }
820
821 mvm_ap_sta = (struct iwl_mvm_sta *)ap_sta->drv_priv;
822
823 /*
824 * The D3 firmware still hardcodes the AP station ID for the
825 * BSS we're associated with as 0. Store the real STA ID here
826 * and assign 0. When we leave this function, we'll restore
827 * the original value for the resume code.
828 */
829 old_ap_sta_id = mvm_ap_sta->sta_id;
830 mvm_ap_sta->sta_id = 0;
831 mvmvif->ap_sta_id = 0;
832
833 /* TODO: wowlan_config_cmd.wowlan_ba_teardown_tids */
834
835 wowlan_config_cmd.is_11n_connection = ap_sta->ht_cap.ht_supported;
836
837 /*
838 * We know the last used seqno, and the uCode expects to know that
839 * one, it will increment before TX.
840 */
841 seq = mvm_ap_sta->last_seq_ctl & IEEE80211_SCTL_SEQ;
842 wowlan_config_cmd.non_qos_seq = cpu_to_le16(seq);
843
844 /*
845 * For QoS counters, we store the one to use next, so subtract 0x10
846 * since the uCode will add 0x10 *before* using the value while we
847 * increment after using the value (i.e. store the next value to use).
848 */
849 for (i = 0; i < IWL_MAX_TID_COUNT; i++) {
850 seq = mvm_ap_sta->tid_data[i].seq_number;
851 seq -= 0x10;
852 wowlan_config_cmd.qos_seq[i] = cpu_to_le16(seq);
853 }
854
855 if (wowlan->disconnect)
856 wowlan_config_cmd.wakeup_filter |=
857 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS |
858 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
859 if (wowlan->magic_pkt)
860 wowlan_config_cmd.wakeup_filter |=
861 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET);
862 if (wowlan->gtk_rekey_failure)
863 wowlan_config_cmd.wakeup_filter |=
864 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL);
865 if (wowlan->eap_identity_req)
866 wowlan_config_cmd.wakeup_filter |=
867 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ);
868 if (wowlan->four_way_handshake)
869 wowlan_config_cmd.wakeup_filter |=
870 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE);
871 if (wowlan->n_patterns)
872 wowlan_config_cmd.wakeup_filter |=
873 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH);
874
875 if (wowlan->rfkill_release)
6039f3e1 876 wowlan_config_cmd.wakeup_filter |=
8ca151b5
JB		 877 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT);
878
f0c2646a
JB		 879 if (wowlan->tcp) {
880 /*
6039f3e1
JB		 881 * Set the "link change" (really "link lost") flag as well
882 * since that implies losing the TCP connection.
f0c2646a
JB		 883 */
884 wowlan_config_cmd.wakeup_filter |=
885 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS |
886 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE |
887 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET |
888 IWL_WOWLAN_WAKEUP_LINK_CHANGE);
889 }
890
8ca151b5
JB		 891 iwl_mvm_cancel_scan(mvm);
892
893 iwl_trans_stop_device(mvm->trans);
894
895 /*
896 * Set the HW restart bit -- this is mostly true as we're
897 * going to load new firmware and reprogram that, though
898 * the reprogramming is going to be manual to avoid adding
899 * all the MACs that aren't support.
900 * We don't have to clear up everything though because the
901 * reprogramming is manual. When we resume, we'll actually
902 * go through a proper restart sequence again to switch
903 * back to the runtime firmware image.
904 */
905 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
906
907 /* We reprogram keys and shouldn't allocate new key indices */
908 memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
909
f444eb10
JB		 910 mvm->ptk_ivlen = 0;
911 mvm->ptk_icvlen = 0;
912 mvm->ptk_ivlen = 0;
913 mvm->ptk_icvlen = 0;
914
8ca151b5
JB		 915 /*
916 * The D3 firmware still hardcodes the AP station ID for the
917 * BSS we're associated with as 0. As a result, we have to move
918 * the auxiliary station to ID 1 so the ID 0 remains free for
919 * the AP station for later.
920 * We set the sta_id to 1 here, and reset it to its previous
921 * value (that we stored above) later.
922 */
923 mvm->aux_sta.sta_id = 1;
924
925 ret = iwl_mvm_load_d3_fw(mvm);
926 if (ret)
927 goto out;
928
929 ret = iwl_mvm_d3_reprogram(mvm, vif, ap_sta);
930 if (ret)
931 goto out;
932
933 if (!iwlwifi_mod_params.sw_crypto) {
934 /*
935 * This needs to be unlocked due to lock ordering
936 * constraints. Since we're in the suspend path
937 * that isn't really a problem though.
938 */
939 mutex_unlock(&mvm->mutex);
940 ieee80211_iter_keys(mvm->hw, vif,
941 iwl_mvm_wowlan_program_keys,
942 &key_data);
943 mutex_lock(&mvm->mutex);
944 if (key_data.error) {
945 ret = -EIO;
946 goto out;
947 }
948
949 if (key_data.use_rsc_tsc) {
950 struct iwl_host_cmd rsc_tsc_cmd = {
951 .id = WOWLAN_TSC_RSC_PARAM,
952 .flags = CMD_SYNC,
953 .data[0] = key_data.rsc_tsc,
954 .dataflags[0] = IWL_HCMD_DFL_NOCOPY,
955 .len[0] = sizeof(*key_data.rsc_tsc),
956 };
957
958 ret = iwl_mvm_send_cmd(mvm, &rsc_tsc_cmd);
959 if (ret)
960 goto out;
961 }
962
963 if (key_data.use_tkip) {
964 ret = iwl_mvm_send_cmd_pdu(mvm,
965 WOWLAN_TKIP_PARAM,
966 CMD_SYNC, sizeof(tkip_cmd),
967 &tkip_cmd);
968 if (ret)
969 goto out;
970 }
971
972 if (mvmvif->rekey_data.valid) {
973 memset(&kek_kck_cmd, 0, sizeof(kek_kck_cmd));
974 memcpy(kek_kck_cmd.kck, mvmvif->rekey_data.kck,
975 NL80211_KCK_LEN);
976 kek_kck_cmd.kck_len = cpu_to_le16(NL80211_KCK_LEN);
977 memcpy(kek_kck_cmd.kek, mvmvif->rekey_data.kek,
978 NL80211_KEK_LEN);
979 kek_kck_cmd.kek_len = cpu_to_le16(NL80211_KEK_LEN);
980 kek_kck_cmd.replay_ctr = mvmvif->rekey_data.replay_ctr;
981
982 ret = iwl_mvm_send_cmd_pdu(mvm,
983 WOWLAN_KEK_KCK_MATERIAL,
984 CMD_SYNC,
985 sizeof(kek_kck_cmd),
986 &kek_kck_cmd);
987 if (ret)
988 goto out;
989 }
990 }
991
992 ret = iwl_mvm_send_cmd_pdu(mvm, WOWLAN_CONFIGURATION,
993 CMD_SYNC, sizeof(wowlan_config_cmd),
994 &wowlan_config_cmd);
995 if (ret)
996 goto out;
997
998 ret = iwl_mvm_send_patterns(mvm, wowlan);
999 if (ret)
1000 goto out;
1001
1002 ret = iwl_mvm_send_proto_offload(mvm, vif);
1003 if (ret)
1004 goto out;
1005
f0c2646a
JB		 1006 ret = iwl_mvm_send_remote_wake_cfg(mvm, vif, wowlan->tcp);
1007 if (ret)
1008 goto out;
1009
8ca151b5
JB		 1010 /* must be last -- this switches firmware state */
1011 ret = iwl_mvm_send_cmd_pdu(mvm, D3_CONFIG_CMD, CMD_SYNC,
1012 sizeof(d3_cfg_cmd), &d3_cfg_cmd);
1013 if (ret)
1014 goto out;
1015
1016 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1017
1018 iwl_trans_d3_suspend(mvm->trans);
1019 out:
1020 mvm->aux_sta.sta_id = old_aux_sta_id;
1021 mvm_ap_sta->sta_id = old_ap_sta_id;
1022 mvmvif->ap_sta_id = old_ap_sta_id;
1023 out_noreset:
1024 kfree(key_data.rsc_tsc);
1025 if (ret < 0)
1026 ieee80211_restart_hw(mvm->hw);
1027
1028 mutex_unlock(&mvm->mutex);
1029
1030 return ret;
1031}
1032
9b26b500
JB		 1033static void iwl_mvm_query_wakeup_reasons(struct iwl_mvm *mvm,
1034 struct ieee80211_vif *vif)
1035{
1036 u32 base = mvm->error_event_table;
1037 struct error_table_start {
1038 /* cf. struct iwl_error_event_table */
1039 u32 valid;
1040 u32 error_id;
1041 } err_info;
1042 struct cfg80211_wowlan_wakeup wakeup = {
1043 .pattern_idx = -1,
1044 };
1045 struct cfg80211_wowlan_wakeup *wakeup_report = &wakeup;
1046 struct iwl_host_cmd cmd = {
1047 .id = WOWLAN_GET_STATUSES,
1048 .flags = CMD_SYNC | CMD_WANT_SKB,
1049 };
1050 struct iwl_wowlan_status *status;
1051 u32 reasons;
1052 int ret, len;
9b26b500
JB		 1053 struct sk_buff *pkt = NULL;
1054
1055 iwl_trans_read_mem_bytes(mvm->trans, base,
1056 &err_info, sizeof(err_info));
1057
1058 if (err_info.valid) {
1059 IWL_INFO(mvm, "error table is valid (%d)\n",
1060 err_info.valid);
1061 if (err_info.error_id == RF_KILL_INDICATOR_FOR_WOWLAN) {
1062 wakeup.rfkill_release = true;
1063 ieee80211_report_wowlan_wakeup(vif, &wakeup,
1064 GFP_KERNEL);
1065 }
1066 return;
1067 }
1068
1069 /* only for tracing for now */
1070 ret = iwl_mvm_send_cmd_pdu(mvm, OFFLOADS_QUERY_CMD, CMD_SYNC, 0, NULL);
1071 if (ret)
1072 IWL_ERR(mvm, "failed to query offload statistics (%d)\n", ret);
1073
1074 ret = iwl_mvm_send_cmd(mvm, &cmd);
1075 if (ret) {
1076 IWL_ERR(mvm, "failed to query status (%d)\n", ret);
1077 return;
1078 }
1079
1080 /* RF-kill already asserted again... */
1081 if (!cmd.resp_pkt)
1082 return;
1083
1084 len = le32_to_cpu(cmd.resp_pkt->len_n_flags) & FH_RSCSR_FRAME_SIZE_MSK;
1085 if (len - sizeof(struct iwl_cmd_header) < sizeof(*status)) {
1086 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1087 goto out;
1088 }
1089
1090 status = (void *)cmd.resp_pkt->data;
1091
1092 if (len - sizeof(struct iwl_cmd_header) !=
f444eb10
JB		 1093 sizeof(*status) +
1094 ALIGN(le32_to_cpu(status->wake_packet_bufsize), 4)) {
9b26b500
JB		 1095 IWL_ERR(mvm, "Invalid WoWLAN status response!\n");
1096 goto out;
1097 }
1098
1099 reasons = le32_to_cpu(status->wakeup_reasons);
1100
1101 if (reasons == IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS) {
1102 wakeup_report = NULL;
1103 goto report;
1104 }
1105
f444eb10 1106 if (reasons & IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET)
9b26b500 1107 wakeup.magic_pkt = true;
9b26b500 1108
f444eb10 1109 if (reasons & IWL_WOWLAN_WAKEUP_BY_PATTERN)
9b26b500
JB		 1110 wakeup.pattern_idx =
1111 le16_to_cpu(status->pattern_number);
9b26b500
JB		 1112
1113 if (reasons & (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON |
1114 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH))
1115 wakeup.disconnect = true;
1116
f444eb10 1117 if (reasons & IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE)
9b26b500 1118 wakeup.gtk_rekey_failure = true;
9b26b500 1119
f444eb10 1120 if (reasons & IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED)
9b26b500 1121 wakeup.rfkill_release = true;
9b26b500 1122
f444eb10 1123 if (reasons & IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST)
9b26b500 1124 wakeup.eap_identity_req = true;
9b26b500 1125
f444eb10 1126 if (reasons & IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE)
9b26b500 1127 wakeup.four_way_handshake = true;
9b26b500 1128
f0c2646a
JB		 1129 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS)
1130 wakeup.tcp_connlost = true;
1131
1132 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE)
1133 wakeup.tcp_nomoretokens = true;
1134
1135 if (reasons & IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET)
1136 wakeup.tcp_match = true;
1137
9b26b500 1138 if (status->wake_packet_bufsize) {
f444eb10
JB		 1139 int pktsize = le32_to_cpu(status->wake_packet_bufsize);
1140 int pktlen = le32_to_cpu(status->wake_packet_length);
1141 const u8 *pktdata = status->wake_packet;
1142 struct ieee80211_hdr *hdr = (void *)pktdata;
1143 int truncated = pktlen - pktsize;
1144
1145 /* this would be a firmware bug */
1146 if (WARN_ON_ONCE(truncated < 0))
1147 truncated = 0;
1148
1149 if (ieee80211_is_data(hdr->frame_control)) {
1150 int hdrlen = ieee80211_hdrlen(hdr->frame_control);
1151 int ivlen = 0, icvlen = 4; /* also FCS */
9b26b500 1152
9b26b500
JB		 1153 pkt = alloc_skb(pktsize, GFP_KERNEL);
1154 if (!pkt)
1155 goto report;
f444eb10
JB		 1156
1157 memcpy(skb_put(pkt, hdrlen), pktdata, hdrlen);
1158 pktdata += hdrlen;
1159 pktsize -= hdrlen;
1160
1161 if (ieee80211_has_protected(hdr->frame_control)) {
1162 if (is_multicast_ether_addr(hdr->addr1)) {
1163 ivlen = mvm->gtk_ivlen;
1164 icvlen += mvm->gtk_icvlen;
1165 } else {
1166 ivlen = mvm->ptk_ivlen;
1167 icvlen += mvm->ptk_icvlen;
1168 }
1169 }
1170
1171 /* if truncated, FCS/ICV is (partially) gone */
1172 if (truncated >= icvlen) {
1173 icvlen = 0;
1174 truncated -= icvlen;
1175 } else {
1176 icvlen -= truncated;
1177 truncated = 0;
1178 }
1179
1180 pktsize -= ivlen + icvlen;
1181 pktdata += ivlen;
1182
1183 memcpy(skb_put(pkt, pktsize), pktdata, pktsize);
1184
9b26b500
JB		 1185 if (ieee80211_data_to_8023(pkt, vif->addr, vif->type))
1186 goto report;
1187 wakeup.packet = pkt->data;
1188 wakeup.packet_present_len = pkt->len;
f444eb10 1189 wakeup.packet_len = pkt->len - truncated;
9b26b500
JB		 1190 wakeup.packet_80211 = false;
1191 } else {
f444eb10
JB		 1192 int fcslen = 4;
1193
1194 if (truncated >= 4) {
1195 truncated -= 4;
1196 fcslen = 0;
1197 } else {
1198 fcslen -= truncated;
1199 truncated = 0;
1200 }
1201 pktsize -= fcslen;
9b26b500
JB		 1202 wakeup.packet = status->wake_packet;
1203 wakeup.packet_present_len = pktsize;
f444eb10 1204 wakeup.packet_len = pktlen - truncated;
9b26b500
JB		 1205 wakeup.packet_80211 = true;
1206 }
1207 }
1208
1209 report:
1210 ieee80211_report_wowlan_wakeup(vif, wakeup_report, GFP_KERNEL);
1211 kfree_skb(pkt);
1212
1213 out:
1214 iwl_free_resp(&cmd);
1215}
1216
8ca151b5
JB		 1217int iwl_mvm_resume(struct ieee80211_hw *hw)
1218{
1219 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1220 struct iwl_d3_iter_data resume_iter_data = {
1221 .mvm = mvm,
1222 };
1223 struct ieee80211_vif *vif = NULL;
8ca151b5
JB		 1224 int ret;
1225 enum iwl_d3_status d3_status;
8ca151b5
JB		 1226
1227 mutex_lock(&mvm->mutex);
1228
1229 /* get the BSS vif pointer again */
1230 ieee80211_iterate_active_interfaces_atomic(
1231 mvm->hw, IEEE80211_IFACE_ITER_NORMAL,
1232 iwl_mvm_d3_iface_iterator, &resume_iter_data);
1233
1234 if (WARN_ON(resume_iter_data.error || !resume_iter_data.vif))
1235 goto out_unlock;
1236
1237 vif = resume_iter_data.vif;
1238
1239 ret = iwl_trans_d3_resume(mvm->trans, &d3_status);
1240 if (ret)
1241 goto out_unlock;
1242
1243 if (d3_status != IWL_D3_STATUS_ALIVE) {
1244 IWL_INFO(mvm, "Device was reset during suspend\n");
1245 goto out_unlock;
1246 }
1247
9b26b500 1248 iwl_mvm_query_wakeup_reasons(mvm, vif);
8ca151b5
JB		 1249
1250 out_unlock:
1251 mutex_unlock(&mvm->mutex);
1252
1253 if (vif)
1254 ieee80211_resume_disconnect(vif);
1255
1256 /* return 1 to reconfigure the device */
1257 set_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
1258 return 1;
1259}
1260
1261void iwl_mvm_set_wakeup(struct ieee80211_hw *hw, bool enabled)
1262{
1263 struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
1264
1265 device_set_wakeup_enable(mvm->trans->dev, enabled);
1266}
Linux 6.x block layer and io_uring tree(s)