1 /******************************************************************************
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.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
28 * Contact Information:
29 * Intel Linux Wireless <linuxwifi@intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
36 * All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *****************************************************************************/
66 #include <linux/etherdevice.h>
69 #include <net/cfg80211.h>
72 #include <net/addrconf.h>
73 #include "iwl-modparams.h"
77 void iwl_mvm_set_rekey_data(struct ieee80211_hw
*hw
,
78 struct ieee80211_vif
*vif
,
79 struct cfg80211_gtk_rekey_data
*data
)
81 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
82 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
84 if (iwlwifi_mod_params
.sw_crypto
)
87 mutex_lock(&mvm
->mutex
);
89 memcpy(mvmvif
->rekey_data
.kek
, data
->kek
, NL80211_KEK_LEN
);
90 memcpy(mvmvif
->rekey_data
.kck
, data
->kck
, NL80211_KCK_LEN
);
91 mvmvif
->rekey_data
.replay_ctr
=
92 cpu_to_le64(be64_to_cpup((__be64
*)&data
->replay_ctr
));
93 mvmvif
->rekey_data
.valid
= true;
95 mutex_unlock(&mvm
->mutex
);
98 #if IS_ENABLED(CONFIG_IPV6)
99 void iwl_mvm_ipv6_addr_change(struct ieee80211_hw
*hw
,
100 struct ieee80211_vif
*vif
,
101 struct inet6_dev
*idev
)
103 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
104 struct inet6_ifaddr
*ifa
;
107 memset(mvmvif
->tentative_addrs
, 0, sizeof(mvmvif
->tentative_addrs
));
109 read_lock_bh(&idev
->lock
);
110 list_for_each_entry(ifa
, &idev
->addr_list
, if_list
) {
111 mvmvif
->target_ipv6_addrs
[idx
] = ifa
->addr
;
112 if (ifa
->flags
& IFA_F_TENTATIVE
)
113 __set_bit(idx
, mvmvif
->tentative_addrs
);
115 if (idx
>= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX
)
118 read_unlock_bh(&idev
->lock
);
120 mvmvif
->num_target_ipv6_addrs
= idx
;
124 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw
*hw
,
125 struct ieee80211_vif
*vif
, int idx
)
127 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
129 mvmvif
->tx_key_idx
= idx
;
132 static void iwl_mvm_convert_p1k(u16
*p1k
, __le16
*out
)
136 for (i
= 0; i
< IWL_P1K_SIZE
; i
++)
137 out
[i
] = cpu_to_le16(p1k
[i
]);
140 static const u8
*iwl_mvm_find_max_pn(struct ieee80211_key_conf
*key
,
141 struct iwl_mvm_key_pn
*ptk_pn
,
142 struct ieee80211_key_seq
*seq
,
145 const u8
*ret
= seq
->ccmp
.pn
;
148 /* get the PN from mac80211, used on the default queue */
149 ieee80211_get_key_rx_seq(key
, tid
, seq
);
151 /* and use the internal data for the other queues */
152 for (i
= 1; i
< queues
; i
++) {
153 const u8
*tmp
= ptk_pn
->q
[i
].pn
[tid
];
155 if (memcmp(ret
, tmp
, IEEE80211_CCMP_PN_LEN
) <= 0)
162 struct wowlan_key_data
{
163 struct iwl_wowlan_rsc_tsc_params_cmd
*rsc_tsc
;
164 struct iwl_wowlan_tkip_params_cmd
*tkip
;
165 bool error
, use_rsc_tsc
, use_tkip
, configure_keys
;
169 static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw
*hw
,
170 struct ieee80211_vif
*vif
,
171 struct ieee80211_sta
*sta
,
172 struct ieee80211_key_conf
*key
,
175 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
176 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
177 struct wowlan_key_data
*data
= _data
;
178 struct aes_sc
*aes_sc
, *aes_tx_sc
= NULL
;
179 struct tkip_sc
*tkip_sc
, *tkip_tx_sc
= NULL
;
180 struct iwl_p1k_cache
*rx_p1ks
;
182 struct ieee80211_key_seq seq
;
184 u16 p1k
[IWL_P1K_SIZE
];
187 switch (key
->cipher
) {
188 case WLAN_CIPHER_SUITE_WEP40
:
189 case WLAN_CIPHER_SUITE_WEP104
: { /* hack it for now */
191 struct iwl_mvm_wep_key_cmd wep_key_cmd
;
192 struct iwl_mvm_wep_key wep_key
;
194 .wep_key_cmd
.mac_id_n_color
=
195 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
197 .wep_key_cmd
.num_keys
= 1,
198 /* firmware sets STA_KEY_FLG_WEP_13BYTES */
199 .wep_key_cmd
.decryption_type
= STA_KEY_FLG_WEP
,
200 .wep_key
.key_index
= key
->keyidx
,
201 .wep_key
.key_size
= key
->keylen
,
205 * This will fail -- the key functions don't set support
206 * pairwise WEP keys. However, that's better than silently
207 * failing WoWLAN. Or maybe not?
209 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
212 memcpy(&wkc
.wep_key
.key
[3], key
->key
, key
->keylen
);
213 if (key
->keyidx
== mvmvif
->tx_key_idx
) {
214 /* TX key must be at offset 0 */
215 wkc
.wep_key
.key_offset
= 0;
217 /* others start at 1 */
219 wkc
.wep_key
.key_offset
= data
->wep_key_idx
;
222 if (data
->configure_keys
) {
223 mutex_lock(&mvm
->mutex
);
224 ret
= iwl_mvm_send_cmd_pdu(mvm
, WEP_KEY
, 0,
226 data
->error
= ret
!= 0;
228 mvm
->ptk_ivlen
= key
->iv_len
;
229 mvm
->ptk_icvlen
= key
->icv_len
;
230 mvm
->gtk_ivlen
= key
->iv_len
;
231 mvm
->gtk_icvlen
= key
->icv_len
;
232 mutex_unlock(&mvm
->mutex
);
235 /* don't upload key again */
241 case WLAN_CIPHER_SUITE_AES_CMAC
:
243 * Ignore CMAC keys -- the WoWLAN firmware doesn't support them
244 * but we also shouldn't abort suspend due to that. It does have
245 * support for the IGTK key renewal, but doesn't really use the
246 * IGTK for anything. This means we could spuriously wake up or
247 * be deauthenticated, but that was considered acceptable.
250 case WLAN_CIPHER_SUITE_TKIP
:
252 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.unicast_rsc
;
253 tkip_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.tkip
.tsc
;
255 rx_p1ks
= data
->tkip
->rx_uni
;
257 ieee80211_get_key_tx_seq(key
, &seq
);
258 tkip_tx_sc
->iv16
= cpu_to_le16(seq
.tkip
.iv16
);
259 tkip_tx_sc
->iv32
= cpu_to_le32(seq
.tkip
.iv32
);
261 ieee80211_get_tkip_p1k_iv(key
, seq
.tkip
.iv32
, p1k
);
262 iwl_mvm_convert_p1k(p1k
, data
->tkip
->tx
.p1k
);
264 memcpy(data
->tkip
->mic_keys
.tx
,
265 &key
->key
[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY
],
268 rx_mic_key
= data
->tkip
->mic_keys
.rx_unicast
;
271 data
->rsc_tsc
->all_tsc_rsc
.tkip
.multicast_rsc
;
272 rx_p1ks
= data
->tkip
->rx_multi
;
273 rx_mic_key
= data
->tkip
->mic_keys
.rx_mcast
;
277 * For non-QoS this relies on the fact that both the uCode and
278 * mac80211 use TID 0 (as they need to to avoid replay attacks)
279 * for checking the IV in the frames.
281 for (i
= 0; i
< IWL_NUM_RSC
; i
++) {
282 ieee80211_get_key_rx_seq(key
, i
, &seq
);
283 tkip_sc
[i
].iv16
= cpu_to_le16(seq
.tkip
.iv16
);
284 tkip_sc
[i
].iv32
= cpu_to_le32(seq
.tkip
.iv32
);
285 /* wrapping isn't allowed, AP must rekey */
286 if (seq
.tkip
.iv32
> cur_rx_iv32
)
287 cur_rx_iv32
= seq
.tkip
.iv32
;
290 ieee80211_get_tkip_rx_p1k(key
, vif
->bss_conf
.bssid
,
292 iwl_mvm_convert_p1k(p1k
, rx_p1ks
[0].p1k
);
293 ieee80211_get_tkip_rx_p1k(key
, vif
->bss_conf
.bssid
,
294 cur_rx_iv32
+ 1, p1k
);
295 iwl_mvm_convert_p1k(p1k
, rx_p1ks
[1].p1k
);
298 &key
->key
[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
],
301 data
->use_tkip
= true;
302 data
->use_rsc_tsc
= true;
304 case WLAN_CIPHER_SUITE_CCMP
:
308 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.unicast_rsc
;
309 aes_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.aes
.tsc
;
311 pn64
= atomic64_read(&key
->tx_pn
);
312 aes_tx_sc
->pn
= cpu_to_le64(pn64
);
314 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.multicast_rsc
;
318 * For non-QoS this relies on the fact that both the uCode and
319 * mac80211/our RX code use TID 0 for checking the PN.
321 if (sta
&& iwl_mvm_has_new_rx_api(mvm
)) {
322 struct iwl_mvm_sta
*mvmsta
;
323 struct iwl_mvm_key_pn
*ptk_pn
;
326 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
327 ptk_pn
= rcu_dereference_protected(
328 mvmsta
->ptk_pn
[key
->keyidx
],
329 lockdep_is_held(&mvm
->mutex
));
330 if (WARN_ON(!ptk_pn
))
333 for (i
= 0; i
< IWL_MAX_TID_COUNT
; i
++) {
334 pn
= iwl_mvm_find_max_pn(key
, ptk_pn
, &seq
, i
,
335 mvm
->trans
->num_rx_queues
);
336 aes_sc
[i
].pn
= cpu_to_le64((u64
)pn
[5] |
344 for (i
= 0; i
< IWL_NUM_RSC
; i
++) {
345 u8
*pn
= seq
.ccmp
.pn
;
347 ieee80211_get_key_rx_seq(key
, i
, &seq
);
348 aes_sc
[i
].pn
= cpu_to_le64((u64
)pn
[5] |
356 data
->use_rsc_tsc
= true;
360 if (data
->configure_keys
) {
361 mutex_lock(&mvm
->mutex
);
363 * The D3 firmware hardcodes the key offset 0 as the key it
364 * uses to transmit packets to the AP, i.e. the PTK.
366 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
) {
367 mvm
->ptk_ivlen
= key
->iv_len
;
368 mvm
->ptk_icvlen
= key
->icv_len
;
369 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, 0);
372 * firmware only supports TSC/RSC for a single key,
373 * so if there are multiple keep overwriting them
374 * with new ones -- this relies on mac80211 doing
377 mvm
->gtk_ivlen
= key
->iv_len
;
378 mvm
->gtk_icvlen
= key
->icv_len
;
379 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, 1);
381 mutex_unlock(&mvm
->mutex
);
382 data
->error
= ret
!= 0;
386 static int iwl_mvm_send_patterns(struct iwl_mvm
*mvm
,
387 struct cfg80211_wowlan
*wowlan
)
389 struct iwl_wowlan_patterns_cmd
*pattern_cmd
;
390 struct iwl_host_cmd cmd
= {
391 .id
= WOWLAN_PATTERNS
,
392 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
396 if (!wowlan
->n_patterns
)
399 cmd
.len
[0] = sizeof(*pattern_cmd
) +
400 wowlan
->n_patterns
* sizeof(struct iwl_wowlan_pattern
);
402 pattern_cmd
= kmalloc(cmd
.len
[0], GFP_KERNEL
);
406 pattern_cmd
->n_patterns
= cpu_to_le32(wowlan
->n_patterns
);
408 for (i
= 0; i
< wowlan
->n_patterns
; i
++) {
409 int mask_len
= DIV_ROUND_UP(wowlan
->patterns
[i
].pattern_len
, 8);
411 memcpy(&pattern_cmd
->patterns
[i
].mask
,
412 wowlan
->patterns
[i
].mask
, mask_len
);
413 memcpy(&pattern_cmd
->patterns
[i
].pattern
,
414 wowlan
->patterns
[i
].pattern
,
415 wowlan
->patterns
[i
].pattern_len
);
416 pattern_cmd
->patterns
[i
].mask_size
= mask_len
;
417 pattern_cmd
->patterns
[i
].pattern_size
=
418 wowlan
->patterns
[i
].pattern_len
;
421 cmd
.data
[0] = pattern_cmd
;
422 err
= iwl_mvm_send_cmd(mvm
, &cmd
);
427 enum iwl_mvm_tcp_packet_type
{
436 static __le16
pseudo_hdr_check(int len
, __be32 saddr
, __be32 daddr
)
438 __sum16 check
= tcp_v4_check(len
, saddr
, daddr
, 0);
439 return cpu_to_le16(be16_to_cpu((__force __be16
)check
));
442 static void iwl_mvm_build_tcp_packet(struct ieee80211_vif
*vif
,
443 struct cfg80211_wowlan_tcp
*tcp
,
444 void *_pkt
, u8
*mask
,
445 __le16
*pseudo_hdr_csum
,
446 enum iwl_mvm_tcp_packet_type ptype
)
453 } __packed
*pkt
= _pkt
;
454 u16 ip_tot_len
= sizeof(struct iphdr
) + sizeof(struct tcphdr
);
457 pkt
->eth
.h_proto
= cpu_to_be16(ETH_P_IP
),
460 pkt
->ip
.protocol
= IPPROTO_TCP
;
464 case MVM_TCP_TX_DATA
:
466 memcpy(pkt
->eth
.h_dest
, tcp
->dst_mac
, ETH_ALEN
);
467 memcpy(pkt
->eth
.h_source
, vif
->addr
, ETH_ALEN
);
469 pkt
->ip
.saddr
= tcp
->src
;
470 pkt
->ip
.daddr
= tcp
->dst
;
471 pkt
->tcp
.source
= cpu_to_be16(tcp
->src_port
);
472 pkt
->tcp
.dest
= cpu_to_be16(tcp
->dst_port
);
473 /* overwritten for TX SYN later */
474 pkt
->tcp
.doff
= sizeof(struct tcphdr
) / 4;
475 pkt
->tcp
.window
= cpu_to_be16(65000);
477 case MVM_TCP_RX_SYNACK
:
479 case MVM_TCP_RX_WAKE
:
480 memcpy(pkt
->eth
.h_dest
, vif
->addr
, ETH_ALEN
);
481 memcpy(pkt
->eth
.h_source
, tcp
->dst_mac
, ETH_ALEN
);
482 pkt
->ip
.saddr
= tcp
->dst
;
483 pkt
->ip
.daddr
= tcp
->src
;
484 pkt
->tcp
.source
= cpu_to_be16(tcp
->dst_port
);
485 pkt
->tcp
.dest
= cpu_to_be16(tcp
->src_port
);
494 /* firmware assumes 8 option bytes - 8 NOPs for now */
495 memset(pkt
->data
, 0x01, 8);
497 pkt
->tcp
.doff
= (sizeof(struct tcphdr
) + 8) / 4;
500 case MVM_TCP_TX_DATA
:
501 ip_tot_len
+= tcp
->payload_len
;
502 memcpy(pkt
->data
, tcp
->payload
, tcp
->payload_len
);
510 case MVM_TCP_RX_SYNACK
:
517 case MVM_TCP_RX_WAKE
:
518 ip_tot_len
+= tcp
->wake_len
;
521 memcpy(pkt
->data
, tcp
->wake_data
, tcp
->wake_len
);
527 case MVM_TCP_TX_DATA
:
529 pkt
->ip
.tot_len
= cpu_to_be16(ip_tot_len
);
530 pkt
->ip
.check
= ip_fast_csum(&pkt
->ip
, pkt
->ip
.ihl
);
532 case MVM_TCP_RX_WAKE
:
533 for (i
= 0; i
< DIV_ROUND_UP(tcp
->wake_len
, 8); i
++) {
534 u8 tmp
= tcp
->wake_mask
[i
];
535 mask
[i
+ 6] |= tmp
<< 6;
536 if (i
+ 1 < DIV_ROUND_UP(tcp
->wake_len
, 8))
537 mask
[i
+ 7] = tmp
>> 2;
539 /* fall through for ethernet/IP/TCP headers mask */
540 case MVM_TCP_RX_SYNACK
:
542 mask
[0] = 0xff; /* match ethernet */
544 * match ethernet, ip.version, ip.ihl
545 * the ip.ihl half byte is really masked out by firmware
548 mask
[2] = 0x80; /* match ip.protocol */
549 mask
[3] = 0xfc; /* match ip.saddr, ip.daddr */
550 mask
[4] = 0x3f; /* match ip.daddr, tcp.source, tcp.dest */
551 mask
[5] = 0x80; /* match tcp flags */
552 /* leave rest (0 or set for MVM_TCP_RX_WAKE) */
556 *pseudo_hdr_csum
= pseudo_hdr_check(ip_tot_len
- sizeof(struct iphdr
),
557 pkt
->ip
.saddr
, pkt
->ip
.daddr
);
560 static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm
*mvm
,
561 struct ieee80211_vif
*vif
,
562 struct cfg80211_wowlan_tcp
*tcp
)
564 struct iwl_wowlan_remote_wake_config
*cfg
;
565 struct iwl_host_cmd cmd
= {
566 .id
= REMOTE_WAKE_CONFIG_CMD
,
567 .len
= { sizeof(*cfg
), },
568 .dataflags
= { IWL_HCMD_DFL_NOCOPY
, },
575 cfg
= kzalloc(sizeof(*cfg
), GFP_KERNEL
);
580 cfg
->max_syn_retries
= 10;
581 cfg
->max_data_retries
= 10;
582 cfg
->tcp_syn_ack_timeout
= 1; /* seconds */
583 cfg
->tcp_ack_timeout
= 1; /* seconds */
586 iwl_mvm_build_tcp_packet(
587 vif
, tcp
, cfg
->syn_tx
.data
, NULL
,
588 &cfg
->syn_tx
.info
.tcp_pseudo_header_checksum
,
590 cfg
->syn_tx
.info
.tcp_payload_length
= 0;
593 iwl_mvm_build_tcp_packet(
594 vif
, tcp
, cfg
->synack_rx
.data
, cfg
->synack_rx
.rx_mask
,
595 &cfg
->synack_rx
.info
.tcp_pseudo_header_checksum
,
597 cfg
->synack_rx
.info
.tcp_payload_length
= 0;
599 /* KEEPALIVE/ACK (TX) */
600 iwl_mvm_build_tcp_packet(
601 vif
, tcp
, cfg
->keepalive_tx
.data
, NULL
,
602 &cfg
->keepalive_tx
.info
.tcp_pseudo_header_checksum
,
604 cfg
->keepalive_tx
.info
.tcp_payload_length
=
605 cpu_to_le16(tcp
->payload_len
);
606 cfg
->sequence_number_offset
= tcp
->payload_seq
.offset
;
607 /* length must be 0..4, the field is little endian */
608 cfg
->sequence_number_length
= tcp
->payload_seq
.len
;
609 cfg
->initial_sequence_number
= cpu_to_le32(tcp
->payload_seq
.start
);
610 cfg
->keepalive_interval
= cpu_to_le16(tcp
->data_interval
);
611 if (tcp
->payload_tok
.len
) {
612 cfg
->token_offset
= tcp
->payload_tok
.offset
;
613 cfg
->token_length
= tcp
->payload_tok
.len
;
615 cpu_to_le16(tcp
->tokens_size
% tcp
->payload_tok
.len
);
616 memcpy(cfg
->tokens
, tcp
->payload_tok
.token_stream
,
619 /* set tokens to max value to almost never run out */
620 cfg
->num_tokens
= cpu_to_le16(65535);
624 iwl_mvm_build_tcp_packet(
625 vif
, tcp
, cfg
->keepalive_ack_rx
.data
,
626 cfg
->keepalive_ack_rx
.rx_mask
,
627 &cfg
->keepalive_ack_rx
.info
.tcp_pseudo_header_checksum
,
629 cfg
->keepalive_ack_rx
.info
.tcp_payload_length
= 0;
632 iwl_mvm_build_tcp_packet(
633 vif
, tcp
, cfg
->wake_rx
.data
, cfg
->wake_rx
.rx_mask
,
634 &cfg
->wake_rx
.info
.tcp_pseudo_header_checksum
,
636 cfg
->wake_rx
.info
.tcp_payload_length
=
637 cpu_to_le16(tcp
->wake_len
);
640 iwl_mvm_build_tcp_packet(
641 vif
, tcp
, cfg
->fin_tx
.data
, NULL
,
642 &cfg
->fin_tx
.info
.tcp_pseudo_header_checksum
,
644 cfg
->fin_tx
.info
.tcp_payload_length
= 0;
646 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
652 static int iwl_mvm_d3_reprogram(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
653 struct ieee80211_sta
*ap_sta
)
655 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
656 struct ieee80211_chanctx_conf
*ctx
;
657 u8 chains_static
, chains_dynamic
;
658 struct cfg80211_chan_def chandef
;
660 struct iwl_binding_cmd binding_cmd
= {};
661 struct iwl_time_quota_cmd quota_cmd
= {};
664 /* add back the PHY */
665 if (WARN_ON(!mvmvif
->phy_ctxt
))
669 ctx
= rcu_dereference(vif
->chanctx_conf
);
675 chains_static
= ctx
->rx_chains_static
;
676 chains_dynamic
= ctx
->rx_chains_dynamic
;
679 ret
= iwl_mvm_phy_ctxt_add(mvm
, mvmvif
->phy_ctxt
, &chandef
,
680 chains_static
, chains_dynamic
);
684 /* add back the MAC */
685 mvmvif
->uploaded
= false;
687 if (WARN_ON(!vif
->bss_conf
.assoc
))
690 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
694 /* add back binding - XXX refactor? */
695 binding_cmd
.id_and_color
=
696 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
697 mvmvif
->phy_ctxt
->color
));
698 binding_cmd
.action
= cpu_to_le32(FW_CTXT_ACTION_ADD
);
700 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
701 mvmvif
->phy_ctxt
->color
));
702 binding_cmd
.macs
[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
704 for (i
= 1; i
< MAX_MACS_IN_BINDING
; i
++)
705 binding_cmd
.macs
[i
] = cpu_to_le32(FW_CTXT_INVALID
);
708 ret
= iwl_mvm_send_cmd_pdu_status(mvm
, BINDING_CONTEXT_CMD
,
709 sizeof(binding_cmd
), &binding_cmd
,
712 IWL_ERR(mvm
, "Failed to add binding: %d\n", ret
);
717 IWL_ERR(mvm
, "Binding command failed: %u\n", status
);
721 ret
= iwl_mvm_sta_send_to_fw(mvm
, ap_sta
, false);
724 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvmvif
->ap_sta_id
], ap_sta
);
726 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
731 quota_cmd
.quotas
[0].id_and_color
=
732 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
733 mvmvif
->phy_ctxt
->color
));
734 quota_cmd
.quotas
[0].quota
= cpu_to_le32(IWL_MVM_MAX_QUOTA
);
735 quota_cmd
.quotas
[0].max_duration
= cpu_to_le32(IWL_MVM_MAX_QUOTA
);
737 for (i
= 1; i
< MAX_BINDINGS
; i
++)
738 quota_cmd
.quotas
[i
].id_and_color
= cpu_to_le32(FW_CTXT_INVALID
);
740 ret
= iwl_mvm_send_cmd_pdu(mvm
, TIME_QUOTA_CMD
, 0,
741 sizeof(quota_cmd
), "a_cmd
);
743 IWL_ERR(mvm
, "Failed to send quota: %d\n", ret
);
745 if (iwl_mvm_is_lar_supported(mvm
) && iwl_mvm_init_fw_regd(mvm
))
746 IWL_ERR(mvm
, "Failed to initialize D3 LAR information\n");
751 static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm
*mvm
,
752 struct ieee80211_vif
*vif
)
754 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
755 struct iwl_nonqos_seq_query_cmd query_cmd
= {
756 .get_set_flag
= cpu_to_le32(IWL_NONQOS_SEQ_GET
),
758 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
761 struct iwl_host_cmd cmd
= {
762 .id
= NON_QOS_TX_COUNTER_CMD
,
763 .flags
= CMD_WANT_SKB
,
768 cmd
.data
[0] = &query_cmd
;
769 cmd
.len
[0] = sizeof(query_cmd
);
771 err
= iwl_mvm_send_cmd(mvm
, &cmd
);
775 size
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
776 if (size
< sizeof(__le16
)) {
779 err
= le16_to_cpup((__le16
*)cmd
.resp_pkt
->data
);
780 /* firmware returns next, not last-used seqno */
781 err
= (u16
) (err
- 0x10);
788 void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
790 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
791 struct iwl_nonqos_seq_query_cmd query_cmd
= {
792 .get_set_flag
= cpu_to_le32(IWL_NONQOS_SEQ_SET
),
794 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
796 .value
= cpu_to_le16(mvmvif
->seqno
),
799 /* return if called during restart, not resume from D3 */
800 if (!mvmvif
->seqno_valid
)
803 mvmvif
->seqno_valid
= false;
805 if (iwl_mvm_send_cmd_pdu(mvm
, NON_QOS_TX_COUNTER_CMD
, 0,
806 sizeof(query_cmd
), &query_cmd
))
807 IWL_ERR(mvm
, "failed to set non-QoS seqno\n");
810 static int iwl_mvm_switch_to_d3(struct iwl_mvm
*mvm
)
812 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_REGULAR
, true);
814 iwl_trans_stop_device(mvm
->trans
);
817 * Set the HW restart bit -- this is mostly true as we're
818 * going to load new firmware and reprogram that, though
819 * the reprogramming is going to be manual to avoid adding
820 * all the MACs that aren't support.
821 * We don't have to clear up everything though because the
822 * reprogramming is manual. When we resume, we'll actually
823 * go through a proper restart sequence again to switch
824 * back to the runtime firmware image.
826 set_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
828 /* the fw is reset, so all the keys are cleared */
829 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
836 return iwl_mvm_load_d3_fw(mvm
);
840 iwl_mvm_get_wowlan_config(struct iwl_mvm
*mvm
,
841 struct cfg80211_wowlan
*wowlan
,
842 struct iwl_wowlan_config_cmd
*wowlan_config_cmd
,
843 struct ieee80211_vif
*vif
, struct iwl_mvm_vif
*mvmvif
,
844 struct ieee80211_sta
*ap_sta
)
847 struct iwl_mvm_sta
*mvm_ap_sta
= iwl_mvm_sta_from_mac80211(ap_sta
);
849 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
851 wowlan_config_cmd
->is_11n_connection
=
852 ap_sta
->ht_cap
.ht_supported
;
853 wowlan_config_cmd
->flags
= ENABLE_L3_FILTERING
|
854 ENABLE_NBNS_FILTERING
| ENABLE_DHCP_FILTERING
;
856 /* Query the last used seqno and set it */
857 ret
= iwl_mvm_get_last_nonqos_seq(mvm
, vif
);
861 wowlan_config_cmd
->non_qos_seq
= cpu_to_le16(ret
);
863 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta
, wowlan_config_cmd
);
865 if (wowlan
->disconnect
)
866 wowlan_config_cmd
->wakeup_filter
|=
867 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS
|
868 IWL_WOWLAN_WAKEUP_LINK_CHANGE
);
869 if (wowlan
->magic_pkt
)
870 wowlan_config_cmd
->wakeup_filter
|=
871 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET
);
872 if (wowlan
->gtk_rekey_failure
)
873 wowlan_config_cmd
->wakeup_filter
|=
874 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL
);
875 if (wowlan
->eap_identity_req
)
876 wowlan_config_cmd
->wakeup_filter
|=
877 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ
);
878 if (wowlan
->four_way_handshake
)
879 wowlan_config_cmd
->wakeup_filter
|=
880 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE
);
881 if (wowlan
->n_patterns
)
882 wowlan_config_cmd
->wakeup_filter
|=
883 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH
);
885 if (wowlan
->rfkill_release
)
886 wowlan_config_cmd
->wakeup_filter
|=
887 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT
);
891 * Set the "link change" (really "link lost") flag as well
892 * since that implies losing the TCP connection.
894 wowlan_config_cmd
->wakeup_filter
|=
895 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS
|
896 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE
|
897 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET
|
898 IWL_WOWLAN_WAKEUP_LINK_CHANGE
);
905 iwl_mvm_iter_d0i3_ap_keys(struct iwl_mvm
*mvm
,
906 struct ieee80211_vif
*vif
,
907 void (*iter
)(struct ieee80211_hw
*hw
,
908 struct ieee80211_vif
*vif
,
909 struct ieee80211_sta
*sta
,
910 struct ieee80211_key_conf
*key
,
914 struct ieee80211_sta
*ap_sta
;
918 ap_sta
= rcu_dereference(mvm
->fw_id_to_mac_id
[mvm
->d0i3_ap_sta_id
]);
919 if (IS_ERR_OR_NULL(ap_sta
))
922 ieee80211_iter_keys_rcu(mvm
->hw
, vif
, iter
, data
);
927 int iwl_mvm_wowlan_config_key_params(struct iwl_mvm
*mvm
,
928 struct ieee80211_vif
*vif
,
932 struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd
= {};
933 struct iwl_wowlan_tkip_params_cmd tkip_cmd
= {};
934 struct wowlan_key_data key_data
= {
935 .configure_keys
= !d0i3
,
936 .use_rsc_tsc
= false,
940 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
943 key_data
.rsc_tsc
= kzalloc(sizeof(*key_data
.rsc_tsc
), GFP_KERNEL
);
944 if (!key_data
.rsc_tsc
)
948 * if we have to configure keys, call ieee80211_iter_keys(),
949 * as we need non-atomic context in order to take the
951 * for the d0i3 we can't use ieee80211_iter_keys(), as
952 * taking (almost) any mutex might result in deadlock.
956 * Note that currently we don't propagate cmd_flags
957 * to the iterator. In case of key_data.configure_keys,
958 * all the configured commands are SYNC, and
959 * iwl_mvm_wowlan_program_keys() will take care of
960 * locking/unlocking mvm->mutex.
962 ieee80211_iter_keys(mvm
->hw
, vif
,
963 iwl_mvm_wowlan_program_keys
,
966 iwl_mvm_iter_d0i3_ap_keys(mvm
, vif
,
967 iwl_mvm_wowlan_program_keys
,
971 if (key_data
.error
) {
976 if (key_data
.use_rsc_tsc
) {
977 ret
= iwl_mvm_send_cmd_pdu(mvm
,
978 WOWLAN_TSC_RSC_PARAM
, cmd_flags
,
979 sizeof(*key_data
.rsc_tsc
),
985 if (key_data
.use_tkip
) {
986 ret
= iwl_mvm_send_cmd_pdu(mvm
,
988 cmd_flags
, sizeof(tkip_cmd
),
994 /* configure rekey data only if offloaded rekey is supported (d3) */
995 if (mvmvif
->rekey_data
.valid
&& !d0i3
) {
996 memset(&kek_kck_cmd
, 0, sizeof(kek_kck_cmd
));
997 memcpy(kek_kck_cmd
.kck
, mvmvif
->rekey_data
.kck
,
999 kek_kck_cmd
.kck_len
= cpu_to_le16(NL80211_KCK_LEN
);
1000 memcpy(kek_kck_cmd
.kek
, mvmvif
->rekey_data
.kek
,
1002 kek_kck_cmd
.kek_len
= cpu_to_le16(NL80211_KEK_LEN
);
1003 kek_kck_cmd
.replay_ctr
= mvmvif
->rekey_data
.replay_ctr
;
1005 ret
= iwl_mvm_send_cmd_pdu(mvm
,
1006 WOWLAN_KEK_KCK_MATERIAL
, cmd_flags
,
1007 sizeof(kek_kck_cmd
),
1014 kfree(key_data
.rsc_tsc
);
1019 iwl_mvm_wowlan_config(struct iwl_mvm
*mvm
,
1020 struct cfg80211_wowlan
*wowlan
,
1021 struct iwl_wowlan_config_cmd
*wowlan_config_cmd
,
1022 struct ieee80211_vif
*vif
, struct iwl_mvm_vif
*mvmvif
,
1023 struct ieee80211_sta
*ap_sta
)
1027 ret
= iwl_mvm_switch_to_d3(mvm
);
1031 ret
= iwl_mvm_d3_reprogram(mvm
, vif
, ap_sta
);
1035 if (!iwlwifi_mod_params
.sw_crypto
) {
1037 * This needs to be unlocked due to lock ordering
1038 * constraints. Since we're in the suspend path
1039 * that isn't really a problem though.
1041 mutex_unlock(&mvm
->mutex
);
1042 ret
= iwl_mvm_wowlan_config_key_params(mvm
, vif
, false,
1044 mutex_lock(&mvm
->mutex
);
1049 ret
= iwl_mvm_send_cmd_pdu(mvm
, WOWLAN_CONFIGURATION
, 0,
1050 sizeof(*wowlan_config_cmd
),
1055 ret
= iwl_mvm_send_patterns(mvm
, wowlan
);
1059 ret
= iwl_mvm_send_proto_offload(mvm
, vif
, false, true, 0);
1063 ret
= iwl_mvm_send_remote_wake_cfg(mvm
, vif
, wowlan
->tcp
);
1068 iwl_mvm_netdetect_config(struct iwl_mvm
*mvm
,
1069 struct cfg80211_wowlan
*wowlan
,
1070 struct cfg80211_sched_scan_request
*nd_config
,
1071 struct ieee80211_vif
*vif
)
1073 struct iwl_wowlan_config_cmd wowlan_config_cmd
= {};
1076 ret
= iwl_mvm_switch_to_d3(mvm
);
1080 /* rfkill release can be either for wowlan or netdetect */
1081 if (wowlan
->rfkill_release
)
1082 wowlan_config_cmd
.wakeup_filter
|=
1083 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT
);
1085 ret
= iwl_mvm_send_cmd_pdu(mvm
, WOWLAN_CONFIGURATION
, 0,
1086 sizeof(wowlan_config_cmd
),
1087 &wowlan_config_cmd
);
1091 ret
= iwl_mvm_sched_scan_start(mvm
, vif
, nd_config
, &mvm
->nd_ies
,
1092 IWL_MVM_SCAN_NETDETECT
);
1096 if (WARN_ON(mvm
->nd_match_sets
|| mvm
->nd_channels
))
1099 /* save the sched scan matchsets... */
1100 if (nd_config
->n_match_sets
) {
1101 mvm
->nd_match_sets
= kmemdup(nd_config
->match_sets
,
1102 sizeof(*nd_config
->match_sets
) *
1103 nd_config
->n_match_sets
,
1105 if (mvm
->nd_match_sets
)
1106 mvm
->n_nd_match_sets
= nd_config
->n_match_sets
;
1109 /* ...and the sched scan channels for later reporting */
1110 mvm
->nd_channels
= kmemdup(nd_config
->channels
,
1111 sizeof(*nd_config
->channels
) *
1112 nd_config
->n_channels
,
1114 if (mvm
->nd_channels
)
1115 mvm
->n_nd_channels
= nd_config
->n_channels
;
1120 static void iwl_mvm_free_nd(struct iwl_mvm
*mvm
)
1122 kfree(mvm
->nd_match_sets
);
1123 mvm
->nd_match_sets
= NULL
;
1124 mvm
->n_nd_match_sets
= 0;
1125 kfree(mvm
->nd_channels
);
1126 mvm
->nd_channels
= NULL
;
1127 mvm
->n_nd_channels
= 0;
1130 static int __iwl_mvm_suspend(struct ieee80211_hw
*hw
,
1131 struct cfg80211_wowlan
*wowlan
,
1134 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1135 struct ieee80211_vif
*vif
= NULL
;
1136 struct iwl_mvm_vif
*mvmvif
= NULL
;
1137 struct ieee80211_sta
*ap_sta
= NULL
;
1138 struct iwl_d3_manager_config d3_cfg_cmd_data
= {
1140 * Program the minimum sleep time to 10 seconds, as many
1141 * platforms have issues processing a wakeup signal while
1142 * still being in the process of suspending.
1144 .min_sleep_time
= cpu_to_le32(10 * 1000 * 1000),
1146 struct iwl_host_cmd d3_cfg_cmd
= {
1147 .id
= D3_CONFIG_CMD
,
1148 .flags
= CMD_WANT_SKB
,
1149 .data
[0] = &d3_cfg_cmd_data
,
1150 .len
[0] = sizeof(d3_cfg_cmd_data
),
1153 int len __maybe_unused
;
1157 * mac80211 shouldn't get here, but for D3 test
1158 * it doesn't warrant a warning
1164 mutex_lock(&mvm
->mutex
);
1166 vif
= iwl_mvm_get_bss_vif(mvm
);
1167 if (IS_ERR_OR_NULL(vif
)) {
1172 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1174 if (mvmvif
->ap_sta_id
== IWL_MVM_STATION_COUNT
) {
1175 /* if we're not associated, this must be netdetect */
1176 if (!wowlan
->nd_config
) {
1181 ret
= iwl_mvm_netdetect_config(
1182 mvm
, wowlan
, wowlan
->nd_config
, vif
);
1186 mvm
->net_detect
= true;
1188 struct iwl_wowlan_config_cmd wowlan_config_cmd
= {};
1190 ap_sta
= rcu_dereference_protected(
1191 mvm
->fw_id_to_mac_id
[mvmvif
->ap_sta_id
],
1192 lockdep_is_held(&mvm
->mutex
));
1193 if (IS_ERR_OR_NULL(ap_sta
)) {
1198 ret
= iwl_mvm_get_wowlan_config(mvm
, wowlan
, &wowlan_config_cmd
,
1199 vif
, mvmvif
, ap_sta
);
1202 ret
= iwl_mvm_wowlan_config(mvm
, wowlan
, &wowlan_config_cmd
,
1203 vif
, mvmvif
, ap_sta
);
1207 mvm
->net_detect
= false;
1210 ret
= iwl_mvm_power_update_device(mvm
);
1214 ret
= iwl_mvm_power_update_mac(mvm
);
1218 #ifdef CONFIG_IWLWIFI_DEBUGFS
1219 if (mvm
->d3_wake_sysassert
)
1220 d3_cfg_cmd_data
.wakeup_flags
|=
1221 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR
);
1224 /* must be last -- this switches firmware state */
1225 ret
= iwl_mvm_send_cmd(mvm
, &d3_cfg_cmd
);
1228 #ifdef CONFIG_IWLWIFI_DEBUGFS
1229 len
= iwl_rx_packet_payload_len(d3_cfg_cmd
.resp_pkt
);
1230 if (len
>= sizeof(u32
)) {
1231 mvm
->d3_test_pme_ptr
=
1232 le32_to_cpup((__le32
*)d3_cfg_cmd
.resp_pkt
->data
);
1235 iwl_free_resp(&d3_cfg_cmd
);
1237 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1239 iwl_trans_d3_suspend(mvm
->trans
, test
);
1242 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1243 ieee80211_restart_hw(mvm
->hw
);
1244 iwl_mvm_free_nd(mvm
);
1247 mutex_unlock(&mvm
->mutex
);
1252 static int iwl_mvm_enter_d0i3_sync(struct iwl_mvm
*mvm
)
1254 struct iwl_notification_wait wait_d3
;
1255 static const u16 d3_notif
[] = { D3_CONFIG_CMD
};
1258 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_d3
,
1259 d3_notif
, ARRAY_SIZE(d3_notif
),
1262 ret
= iwl_mvm_enter_d0i3(mvm
->hw
->priv
);
1266 ret
= iwl_wait_notification(&mvm
->notif_wait
, &wait_d3
, HZ
);
1271 iwl_remove_notification(&mvm
->notif_wait
, &wait_d3
);
1275 int iwl_mvm_suspend(struct ieee80211_hw
*hw
, struct cfg80211_wowlan
*wowlan
)
1277 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1278 struct iwl_trans
*trans
= mvm
->trans
;
1281 /* make sure the d0i3 exit work is not pending */
1282 flush_work(&mvm
->d0i3_exit_work
);
1284 ret
= iwl_trans_suspend(trans
);
1289 trans
->system_pm_mode
= IWL_PLAT_PM_MODE_D0I3
;
1291 if (iwl_mvm_enter_d0i3_on_suspend(mvm
)) {
1292 ret
= iwl_mvm_enter_d0i3_sync(mvm
);
1298 mutex_lock(&mvm
->d0i3_suspend_mutex
);
1299 __set_bit(D0I3_DEFER_WAKEUP
, &mvm
->d0i3_suspend_flags
);
1300 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
1302 iwl_trans_d3_suspend(trans
, false);
1307 trans
->system_pm_mode
= IWL_PLAT_PM_MODE_D3
;
1309 return __iwl_mvm_suspend(hw
, wowlan
, false);
1312 /* converted data from the different status responses */
1313 struct iwl_wowlan_status_data
{
1317 u32 wake_packet_length
;
1318 u32 wake_packet_bufsize
;
1319 const u8
*wake_packet
;
1322 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm
*mvm
,
1323 struct ieee80211_vif
*vif
,
1324 struct iwl_wowlan_status_data
*status
)
1326 struct sk_buff
*pkt
= NULL
;
1327 struct cfg80211_wowlan_wakeup wakeup
= {
1330 struct cfg80211_wowlan_wakeup
*wakeup_report
= &wakeup
;
1331 u32 reasons
= status
->wakeup_reasons
;
1333 if (reasons
== IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS
) {
1334 wakeup_report
= NULL
;
1338 pm_wakeup_event(mvm
->dev
, 0);
1340 if (reasons
& IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET
)
1341 wakeup
.magic_pkt
= true;
1343 if (reasons
& IWL_WOWLAN_WAKEUP_BY_PATTERN
)
1344 wakeup
.pattern_idx
=
1345 status
->pattern_number
;
1347 if (reasons
& (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON
|
1348 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH
))
1349 wakeup
.disconnect
= true;
1351 if (reasons
& IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE
)
1352 wakeup
.gtk_rekey_failure
= true;
1354 if (reasons
& IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED
)
1355 wakeup
.rfkill_release
= true;
1357 if (reasons
& IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST
)
1358 wakeup
.eap_identity_req
= true;
1360 if (reasons
& IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE
)
1361 wakeup
.four_way_handshake
= true;
1363 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS
)
1364 wakeup
.tcp_connlost
= true;
1366 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE
)
1367 wakeup
.tcp_nomoretokens
= true;
1369 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET
)
1370 wakeup
.tcp_match
= true;
1372 if (status
->wake_packet_bufsize
) {
1373 int pktsize
= status
->wake_packet_bufsize
;
1374 int pktlen
= status
->wake_packet_length
;
1375 const u8
*pktdata
= status
->wake_packet
;
1376 struct ieee80211_hdr
*hdr
= (void *)pktdata
;
1377 int truncated
= pktlen
- pktsize
;
1379 /* this would be a firmware bug */
1380 if (WARN_ON_ONCE(truncated
< 0))
1383 if (ieee80211_is_data(hdr
->frame_control
)) {
1384 int hdrlen
= ieee80211_hdrlen(hdr
->frame_control
);
1385 int ivlen
= 0, icvlen
= 4; /* also FCS */
1387 pkt
= alloc_skb(pktsize
, GFP_KERNEL
);
1391 memcpy(skb_put(pkt
, hdrlen
), pktdata
, hdrlen
);
1395 if (ieee80211_has_protected(hdr
->frame_control
)) {
1397 * This is unlocked and using gtk_i(c)vlen,
1398 * but since everything is under RTNL still
1399 * that's not really a problem - changing
1400 * it would be difficult.
1402 if (is_multicast_ether_addr(hdr
->addr1
)) {
1403 ivlen
= mvm
->gtk_ivlen
;
1404 icvlen
+= mvm
->gtk_icvlen
;
1406 ivlen
= mvm
->ptk_ivlen
;
1407 icvlen
+= mvm
->ptk_icvlen
;
1411 /* if truncated, FCS/ICV is (partially) gone */
1412 if (truncated
>= icvlen
) {
1414 truncated
-= icvlen
;
1416 icvlen
-= truncated
;
1420 pktsize
-= ivlen
+ icvlen
;
1423 memcpy(skb_put(pkt
, pktsize
), pktdata
, pktsize
);
1425 if (ieee80211_data_to_8023(pkt
, vif
->addr
, vif
->type
))
1427 wakeup
.packet
= pkt
->data
;
1428 wakeup
.packet_present_len
= pkt
->len
;
1429 wakeup
.packet_len
= pkt
->len
- truncated
;
1430 wakeup
.packet_80211
= false;
1434 if (truncated
>= 4) {
1438 fcslen
-= truncated
;
1442 wakeup
.packet
= status
->wake_packet
;
1443 wakeup
.packet_present_len
= pktsize
;
1444 wakeup
.packet_len
= pktlen
- truncated
;
1445 wakeup
.packet_80211
= true;
1450 ieee80211_report_wowlan_wakeup(vif
, wakeup_report
, GFP_KERNEL
);
1454 static void iwl_mvm_aes_sc_to_seq(struct aes_sc
*sc
,
1455 struct ieee80211_key_seq
*seq
)
1459 pn
= le64_to_cpu(sc
->pn
);
1460 seq
->ccmp
.pn
[0] = pn
>> 40;
1461 seq
->ccmp
.pn
[1] = pn
>> 32;
1462 seq
->ccmp
.pn
[2] = pn
>> 24;
1463 seq
->ccmp
.pn
[3] = pn
>> 16;
1464 seq
->ccmp
.pn
[4] = pn
>> 8;
1465 seq
->ccmp
.pn
[5] = pn
;
1468 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc
*sc
,
1469 struct ieee80211_key_seq
*seq
)
1471 seq
->tkip
.iv32
= le32_to_cpu(sc
->iv32
);
1472 seq
->tkip
.iv16
= le16_to_cpu(sc
->iv16
);
1475 static void iwl_mvm_set_aes_rx_seq(struct iwl_mvm
*mvm
, struct aes_sc
*scs
,
1476 struct ieee80211_sta
*sta
,
1477 struct ieee80211_key_conf
*key
)
1481 BUILD_BUG_ON(IWL_NUM_RSC
!= IEEE80211_NUM_TIDS
);
1483 if (sta
&& iwl_mvm_has_new_rx_api(mvm
)) {
1484 struct iwl_mvm_sta
*mvmsta
;
1485 struct iwl_mvm_key_pn
*ptk_pn
;
1487 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
1489 ptk_pn
= rcu_dereference_protected(mvmsta
->ptk_pn
[key
->keyidx
],
1490 lockdep_is_held(&mvm
->mutex
));
1491 if (WARN_ON(!ptk_pn
))
1494 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
1495 struct ieee80211_key_seq seq
= {};
1498 iwl_mvm_aes_sc_to_seq(&scs
[tid
], &seq
);
1499 ieee80211_set_key_rx_seq(key
, tid
, &seq
);
1500 for (i
= 1; i
< mvm
->trans
->num_rx_queues
; i
++)
1501 memcpy(ptk_pn
->q
[i
].pn
[tid
],
1502 seq
.ccmp
.pn
, IEEE80211_CCMP_PN_LEN
);
1505 for (tid
= 0; tid
< IWL_NUM_RSC
; tid
++) {
1506 struct ieee80211_key_seq seq
= {};
1508 iwl_mvm_aes_sc_to_seq(&scs
[tid
], &seq
);
1509 ieee80211_set_key_rx_seq(key
, tid
, &seq
);
1514 static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc
*scs
,
1515 struct ieee80211_key_conf
*key
)
1519 BUILD_BUG_ON(IWL_NUM_RSC
!= IEEE80211_NUM_TIDS
);
1521 for (tid
= 0; tid
< IWL_NUM_RSC
; tid
++) {
1522 struct ieee80211_key_seq seq
= {};
1524 iwl_mvm_tkip_sc_to_seq(&scs
[tid
], &seq
);
1525 ieee80211_set_key_rx_seq(key
, tid
, &seq
);
1529 static void iwl_mvm_set_key_rx_seq(struct iwl_mvm
*mvm
,
1530 struct ieee80211_key_conf
*key
,
1531 struct iwl_wowlan_status
*status
)
1533 union iwl_all_tsc_rsc
*rsc
= &status
->gtk
.rsc
.all_tsc_rsc
;
1535 switch (key
->cipher
) {
1536 case WLAN_CIPHER_SUITE_CCMP
:
1537 iwl_mvm_set_aes_rx_seq(mvm
, rsc
->aes
.multicast_rsc
, NULL
, key
);
1539 case WLAN_CIPHER_SUITE_TKIP
:
1540 iwl_mvm_set_tkip_rx_seq(rsc
->tkip
.multicast_rsc
, key
);
1547 struct iwl_mvm_d3_gtk_iter_data
{
1548 struct iwl_mvm
*mvm
;
1549 struct iwl_wowlan_status
*status
;
1552 bool find_phase
, unhandled_cipher
;
1556 static void iwl_mvm_d3_update_keys(struct ieee80211_hw
*hw
,
1557 struct ieee80211_vif
*vif
,
1558 struct ieee80211_sta
*sta
,
1559 struct ieee80211_key_conf
*key
,
1562 struct iwl_mvm_d3_gtk_iter_data
*data
= _data
;
1564 if (data
->unhandled_cipher
)
1567 switch (key
->cipher
) {
1568 case WLAN_CIPHER_SUITE_WEP40
:
1569 case WLAN_CIPHER_SUITE_WEP104
:
1570 /* ignore WEP completely, nothing to do */
1572 case WLAN_CIPHER_SUITE_CCMP
:
1573 case WLAN_CIPHER_SUITE_TKIP
:
1574 /* we support these */
1577 /* everything else (even CMAC for MFP) - disconnect from AP */
1578 data
->unhandled_cipher
= true;
1585 * pairwise key - update sequence counters only;
1586 * note that this assumes no TDLS sessions are active
1589 struct ieee80211_key_seq seq
= {};
1590 union iwl_all_tsc_rsc
*sc
= &data
->status
->gtk
.rsc
.all_tsc_rsc
;
1592 if (data
->find_phase
)
1595 switch (key
->cipher
) {
1596 case WLAN_CIPHER_SUITE_CCMP
:
1597 iwl_mvm_set_aes_rx_seq(data
->mvm
, sc
->aes
.unicast_rsc
,
1599 atomic64_set(&key
->tx_pn
, le64_to_cpu(sc
->aes
.tsc
.pn
));
1601 case WLAN_CIPHER_SUITE_TKIP
:
1602 iwl_mvm_tkip_sc_to_seq(&sc
->tkip
.tsc
, &seq
);
1603 iwl_mvm_set_tkip_rx_seq(sc
->tkip
.unicast_rsc
, key
);
1604 ieee80211_set_key_tx_seq(key
, &seq
);
1608 /* that's it for this key */
1612 if (data
->find_phase
) {
1613 data
->last_gtk
= key
;
1614 data
->cipher
= key
->cipher
;
1618 if (data
->status
->num_of_gtk_rekeys
)
1619 ieee80211_remove_key(key
);
1620 else if (data
->last_gtk
== key
)
1621 iwl_mvm_set_key_rx_seq(data
->mvm
, key
, data
->status
);
1624 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm
*mvm
,
1625 struct ieee80211_vif
*vif
,
1626 struct iwl_wowlan_status
*status
)
1628 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1629 struct iwl_mvm_d3_gtk_iter_data gtkdata
= {
1633 u32 disconnection_reasons
=
1634 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON
|
1635 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH
;
1637 if (!status
|| !vif
->bss_conf
.bssid
)
1640 if (le32_to_cpu(status
->wakeup_reasons
) & disconnection_reasons
)
1643 /* find last GTK that we used initially, if any */
1644 gtkdata
.find_phase
= true;
1645 ieee80211_iter_keys(mvm
->hw
, vif
,
1646 iwl_mvm_d3_update_keys
, >kdata
);
1647 /* not trying to keep connections with MFP/unhandled ciphers */
1648 if (gtkdata
.unhandled_cipher
)
1650 if (!gtkdata
.num_keys
)
1652 if (!gtkdata
.last_gtk
)
1656 * invalidate all other GTKs that might still exist and update
1657 * the one that we used
1659 gtkdata
.find_phase
= false;
1660 ieee80211_iter_keys(mvm
->hw
, vif
,
1661 iwl_mvm_d3_update_keys
, >kdata
);
1663 if (status
->num_of_gtk_rekeys
) {
1664 struct ieee80211_key_conf
*key
;
1666 struct ieee80211_key_conf conf
;
1669 .conf
.cipher
= gtkdata
.cipher
,
1670 .conf
.keyidx
= status
->gtk
.key_index
,
1673 switch (gtkdata
.cipher
) {
1674 case WLAN_CIPHER_SUITE_CCMP
:
1675 conf
.conf
.keylen
= WLAN_KEY_LEN_CCMP
;
1676 memcpy(conf
.conf
.key
, status
->gtk
.decrypt_key
,
1679 case WLAN_CIPHER_SUITE_TKIP
:
1680 conf
.conf
.keylen
= WLAN_KEY_LEN_TKIP
;
1681 memcpy(conf
.conf
.key
, status
->gtk
.decrypt_key
, 16);
1682 /* leave TX MIC key zeroed, we don't use it anyway */
1683 memcpy(conf
.conf
.key
+
1684 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
,
1685 status
->gtk
.tkip_mic_key
, 8);
1689 key
= ieee80211_gtk_rekey_add(vif
, &conf
.conf
);
1692 iwl_mvm_set_key_rx_seq(mvm
, key
, status
);
1695 if (status
->num_of_gtk_rekeys
) {
1697 cpu_to_be64(le64_to_cpu(status
->replay_ctr
));
1698 ieee80211_gtk_rekey_notify(vif
, vif
->bss_conf
.bssid
,
1699 (void *)&replay_ctr
, GFP_KERNEL
);
1703 mvmvif
->seqno_valid
= true;
1704 /* +0x10 because the set API expects next-to-use, not last-used */
1705 mvmvif
->seqno
= le16_to_cpu(status
->non_qos_seq_ctr
) + 0x10;
1710 static struct iwl_wowlan_status
*
1711 iwl_mvm_get_wakeup_status(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
1713 u32 base
= mvm
->error_event_table
;
1714 struct error_table_start
{
1715 /* cf. struct iwl_error_event_table */
1719 struct iwl_host_cmd cmd
= {
1720 .id
= WOWLAN_GET_STATUSES
,
1721 .flags
= CMD_WANT_SKB
,
1723 struct iwl_wowlan_status
*status
, *fw_status
;
1724 int ret
, len
, status_size
;
1726 iwl_trans_read_mem_bytes(mvm
->trans
, base
,
1727 &err_info
, sizeof(err_info
));
1729 if (err_info
.valid
) {
1730 IWL_INFO(mvm
, "error table is valid (%d) with error (%d)\n",
1731 err_info
.valid
, err_info
.error_id
);
1732 if (err_info
.error_id
== RF_KILL_INDICATOR_FOR_WOWLAN
) {
1733 struct cfg80211_wowlan_wakeup wakeup
= {
1734 .rfkill_release
= true,
1736 ieee80211_report_wowlan_wakeup(vif
, &wakeup
,
1739 return ERR_PTR(-EIO
);
1742 /* only for tracing for now */
1743 ret
= iwl_mvm_send_cmd_pdu(mvm
, OFFLOADS_QUERY_CMD
, 0, 0, NULL
);
1745 IWL_ERR(mvm
, "failed to query offload statistics (%d)\n", ret
);
1747 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
1749 IWL_ERR(mvm
, "failed to query status (%d)\n", ret
);
1750 return ERR_PTR(ret
);
1753 /* RF-kill already asserted again... */
1754 if (!cmd
.resp_pkt
) {
1755 fw_status
= ERR_PTR(-ERFKILL
);
1759 status_size
= sizeof(*fw_status
);
1761 len
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
1762 if (len
< status_size
) {
1763 IWL_ERR(mvm
, "Invalid WoWLAN status response!\n");
1764 fw_status
= ERR_PTR(-EIO
);
1768 status
= (void *)cmd
.resp_pkt
->data
;
1769 if (len
!= (status_size
+
1770 ALIGN(le32_to_cpu(status
->wake_packet_bufsize
), 4))) {
1771 IWL_ERR(mvm
, "Invalid WoWLAN status response!\n");
1772 fw_status
= ERR_PTR(-EIO
);
1776 fw_status
= kmemdup(status
, len
, GFP_KERNEL
);
1779 iwl_free_resp(&cmd
);
1783 /* releases the MVM mutex */
1784 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm
*mvm
,
1785 struct ieee80211_vif
*vif
)
1787 struct iwl_wowlan_status_data status
;
1788 struct iwl_wowlan_status
*fw_status
;
1791 struct ieee80211_sta
*ap_sta
;
1792 struct iwl_mvm_sta
*mvm_ap_sta
;
1794 fw_status
= iwl_mvm_get_wakeup_status(mvm
, vif
);
1795 if (IS_ERR_OR_NULL(fw_status
))
1798 status
.pattern_number
= le16_to_cpu(fw_status
->pattern_number
);
1799 for (i
= 0; i
< 8; i
++)
1800 status
.qos_seq_ctr
[i
] =
1801 le16_to_cpu(fw_status
->qos_seq_ctr
[i
]);
1802 status
.wakeup_reasons
= le32_to_cpu(fw_status
->wakeup_reasons
);
1803 status
.wake_packet_length
=
1804 le32_to_cpu(fw_status
->wake_packet_length
);
1805 status
.wake_packet_bufsize
=
1806 le32_to_cpu(fw_status
->wake_packet_bufsize
);
1807 status
.wake_packet
= fw_status
->wake_packet
;
1809 /* still at hard-coded place 0 for D3 image */
1810 ap_sta
= rcu_dereference_protected(
1811 mvm
->fw_id_to_mac_id
[0],
1812 lockdep_is_held(&mvm
->mutex
));
1813 if (IS_ERR_OR_NULL(ap_sta
))
1816 mvm_ap_sta
= iwl_mvm_sta_from_mac80211(ap_sta
);
1817 for (i
= 0; i
< IWL_MAX_TID_COUNT
; i
++) {
1818 u16 seq
= status
.qos_seq_ctr
[i
];
1819 /* firmware stores last-used value, we store next value */
1821 mvm_ap_sta
->tid_data
[i
].seq_number
= seq
;
1824 /* now we have all the data we need, unlock to avoid mac80211 issues */
1825 mutex_unlock(&mvm
->mutex
);
1827 iwl_mvm_report_wakeup_reasons(mvm
, vif
, &status
);
1829 keep
= iwl_mvm_setup_connection_keep(mvm
, vif
, fw_status
);
1837 mutex_unlock(&mvm
->mutex
);
1841 void iwl_mvm_d0i3_update_keys(struct iwl_mvm
*mvm
,
1842 struct ieee80211_vif
*vif
,
1843 struct iwl_wowlan_status
*status
)
1845 struct iwl_mvm_d3_gtk_iter_data gtkdata
= {
1851 * rekey handling requires taking locks that can't be taken now.
1852 * however, d0i3 doesn't offload rekey, so we're fine.
1854 if (WARN_ON_ONCE(status
->num_of_gtk_rekeys
))
1857 /* find last GTK that we used initially, if any */
1858 gtkdata
.find_phase
= true;
1859 iwl_mvm_iter_d0i3_ap_keys(mvm
, vif
, iwl_mvm_d3_update_keys
, >kdata
);
1861 gtkdata
.find_phase
= false;
1862 iwl_mvm_iter_d0i3_ap_keys(mvm
, vif
, iwl_mvm_d3_update_keys
, >kdata
);
1865 struct iwl_mvm_nd_query_results
{
1866 u32 matched_profiles
;
1867 struct iwl_scan_offload_profile_match matches
[IWL_SCAN_MAX_PROFILES
];
1871 iwl_mvm_netdetect_query_results(struct iwl_mvm
*mvm
,
1872 struct iwl_mvm_nd_query_results
*results
)
1874 struct iwl_scan_offload_profiles_query
*query
;
1875 struct iwl_host_cmd cmd
= {
1876 .id
= SCAN_OFFLOAD_PROFILES_QUERY_CMD
,
1877 .flags
= CMD_WANT_SKB
,
1881 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
1883 IWL_ERR(mvm
, "failed to query matched profiles (%d)\n", ret
);
1887 /* RF-kill already asserted again... */
1888 if (!cmd
.resp_pkt
) {
1893 len
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
1894 if (len
< sizeof(*query
)) {
1895 IWL_ERR(mvm
, "Invalid scan offload profiles query response!\n");
1900 query
= (void *)cmd
.resp_pkt
->data
;
1902 results
->matched_profiles
= le32_to_cpu(query
->matched_profiles
);
1903 memcpy(results
->matches
, query
->matches
, sizeof(results
->matches
));
1905 #ifdef CONFIG_IWLWIFI_DEBUGFS
1906 mvm
->last_netdetect_scans
= le32_to_cpu(query
->n_scans_done
);
1910 iwl_free_resp(&cmd
);
1914 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm
*mvm
,
1915 struct ieee80211_vif
*vif
)
1917 struct cfg80211_wowlan_nd_info
*net_detect
= NULL
;
1918 struct cfg80211_wowlan_wakeup wakeup
= {
1921 struct cfg80211_wowlan_wakeup
*wakeup_report
= &wakeup
;
1922 struct iwl_mvm_nd_query_results query
;
1923 struct iwl_wowlan_status
*fw_status
;
1924 unsigned long matched_profiles
;
1926 int i
, j
, n_matches
, ret
;
1928 fw_status
= iwl_mvm_get_wakeup_status(mvm
, vif
);
1929 if (!IS_ERR_OR_NULL(fw_status
)) {
1930 reasons
= le32_to_cpu(fw_status
->wakeup_reasons
);
1934 if (reasons
& IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED
)
1935 wakeup
.rfkill_release
= true;
1937 if (reasons
!= IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS
)
1940 ret
= iwl_mvm_netdetect_query_results(mvm
, &query
);
1941 if (ret
|| !query
.matched_profiles
) {
1942 wakeup_report
= NULL
;
1946 matched_profiles
= query
.matched_profiles
;
1947 if (mvm
->n_nd_match_sets
) {
1948 n_matches
= hweight_long(matched_profiles
);
1950 IWL_ERR(mvm
, "no net detect match information available\n");
1954 net_detect
= kzalloc(sizeof(*net_detect
) +
1955 (n_matches
* sizeof(net_detect
->matches
[0])),
1957 if (!net_detect
|| !n_matches
)
1960 for_each_set_bit(i
, &matched_profiles
, mvm
->n_nd_match_sets
) {
1961 struct iwl_scan_offload_profile_match
*fw_match
;
1962 struct cfg80211_wowlan_nd_match
*match
;
1963 int idx
, n_channels
= 0;
1965 fw_match
= &query
.matches
[i
];
1967 for (j
= 0; j
< SCAN_OFFLOAD_MATCHING_CHANNELS_LEN
; j
++)
1968 n_channels
+= hweight8(fw_match
->matching_channels
[j
]);
1970 match
= kzalloc(sizeof(*match
) +
1971 (n_channels
* sizeof(*match
->channels
)),
1976 net_detect
->matches
[net_detect
->n_matches
++] = match
;
1978 /* We inverted the order of the SSIDs in the scan
1979 * request, so invert the index here.
1981 idx
= mvm
->n_nd_match_sets
- i
- 1;
1982 match
->ssid
.ssid_len
= mvm
->nd_match_sets
[idx
].ssid
.ssid_len
;
1983 memcpy(match
->ssid
.ssid
, mvm
->nd_match_sets
[idx
].ssid
.ssid
,
1984 match
->ssid
.ssid_len
);
1986 if (mvm
->n_nd_channels
< n_channels
)
1989 for (j
= 0; j
< SCAN_OFFLOAD_MATCHING_CHANNELS_LEN
* 8; j
++)
1990 if (fw_match
->matching_channels
[j
/ 8] & (BIT(j
% 8)))
1991 match
->channels
[match
->n_channels
++] =
1992 mvm
->nd_channels
[j
]->center_freq
;
1996 wakeup
.net_detect
= net_detect
;
1998 iwl_mvm_free_nd(mvm
);
2000 mutex_unlock(&mvm
->mutex
);
2001 ieee80211_report_wowlan_wakeup(vif
, wakeup_report
, GFP_KERNEL
);
2004 for (i
= 0; i
< net_detect
->n_matches
; i
++)
2005 kfree(net_detect
->matches
[i
]);
2010 static void iwl_mvm_read_d3_sram(struct iwl_mvm
*mvm
)
2012 #ifdef CONFIG_IWLWIFI_DEBUGFS
2013 const struct fw_img
*img
= &mvm
->fw
->img
[IWL_UCODE_WOWLAN
];
2014 u32 len
= img
->sec
[IWL_UCODE_SECTION_DATA
].len
;
2015 u32 offs
= img
->sec
[IWL_UCODE_SECTION_DATA
].offset
;
2017 if (!mvm
->store_d3_resume_sram
)
2020 if (!mvm
->d3_resume_sram
) {
2021 mvm
->d3_resume_sram
= kzalloc(len
, GFP_KERNEL
);
2022 if (!mvm
->d3_resume_sram
)
2026 iwl_trans_read_mem_bytes(mvm
->trans
, offs
, mvm
->d3_resume_sram
, len
);
2030 static void iwl_mvm_d3_disconnect_iter(void *data
, u8
*mac
,
2031 struct ieee80211_vif
*vif
)
2033 /* skip the one we keep connection on */
2037 if (vif
->type
== NL80211_IFTYPE_STATION
)
2038 ieee80211_resume_disconnect(vif
);
2041 static int __iwl_mvm_resume(struct iwl_mvm
*mvm
, bool test
)
2043 struct ieee80211_vif
*vif
= NULL
;
2045 enum iwl_d3_status d3_status
;
2048 mutex_lock(&mvm
->mutex
);
2050 /* get the BSS vif pointer again */
2051 vif
= iwl_mvm_get_bss_vif(mvm
);
2052 if (IS_ERR_OR_NULL(vif
))
2055 ret
= iwl_trans_d3_resume(mvm
->trans
, &d3_status
, test
);
2059 if (d3_status
!= IWL_D3_STATUS_ALIVE
) {
2060 IWL_INFO(mvm
, "Device was reset during suspend\n");
2064 /* query SRAM first in case we want event logging */
2065 iwl_mvm_read_d3_sram(mvm
);
2068 * Query the current location and source from the D3 firmware so we
2069 * can play it back when we re-intiailize the D0 firmware
2071 iwl_mvm_update_changed_regdom(mvm
);
2073 if (mvm
->net_detect
) {
2074 iwl_mvm_query_netdetect_reasons(mvm
, vif
);
2075 /* has unlocked the mutex, so skip that */
2078 keep
= iwl_mvm_query_wakeup_reasons(mvm
, vif
);
2079 #ifdef CONFIG_IWLWIFI_DEBUGFS
2081 mvm
->keep_vif
= vif
;
2083 /* has unlocked the mutex, so skip that */
2088 iwl_mvm_free_nd(mvm
);
2089 mutex_unlock(&mvm
->mutex
);
2093 ieee80211_iterate_active_interfaces_rtnl(mvm
->hw
,
2094 IEEE80211_IFACE_ITER_NORMAL
,
2095 iwl_mvm_d3_disconnect_iter
, keep
? vif
: NULL
);
2098 /* return 1 to reconfigure the device */
2099 set_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
2100 set_bit(IWL_MVM_STATUS_D3_RECONFIG
, &mvm
->status
);
2102 /* We always return 1, which causes mac80211 to do a reconfig
2103 * with IEEE80211_RECONFIG_TYPE_RESTART. This type of
2104 * reconfig calls iwl_mvm_restart_complete(), where we unref
2105 * the IWL_MVM_REF_UCODE_DOWN, so we need to take the
2108 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
2112 static int iwl_mvm_resume_d3(struct iwl_mvm
*mvm
)
2114 iwl_trans_resume(mvm
->trans
);
2116 return __iwl_mvm_resume(mvm
, false);
2119 static int iwl_mvm_resume_d0i3(struct iwl_mvm
*mvm
)
2122 enum iwl_d3_status d3_status
;
2123 struct iwl_trans
*trans
= mvm
->trans
;
2125 iwl_trans_d3_resume(trans
, &d3_status
, false);
2128 * make sure to clear D0I3_DEFER_WAKEUP before
2129 * calling iwl_trans_resume(), which might wait
2130 * for d0i3 exit completion.
2132 mutex_lock(&mvm
->d0i3_suspend_mutex
);
2133 __clear_bit(D0I3_DEFER_WAKEUP
, &mvm
->d0i3_suspend_flags
);
2134 exit_now
= __test_and_clear_bit(D0I3_PENDING_WAKEUP
,
2135 &mvm
->d0i3_suspend_flags
);
2136 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
2138 IWL_DEBUG_RPM(mvm
, "Run deferred d0i3 exit\n");
2139 _iwl_mvm_exit_d0i3(mvm
);
2142 iwl_trans_resume(trans
);
2144 if (iwl_mvm_enter_d0i3_on_suspend(mvm
)) {
2145 int ret
= iwl_mvm_exit_d0i3(mvm
->hw
->priv
);
2150 * d0i3 exit will be deferred until reconfig_complete.
2151 * make sure there we are out of d0i3.
2157 int iwl_mvm_resume(struct ieee80211_hw
*hw
)
2159 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2162 if (mvm
->trans
->system_pm_mode
== IWL_PLAT_PM_MODE_D0I3
)
2163 ret
= iwl_mvm_resume_d0i3(mvm
);
2165 ret
= iwl_mvm_resume_d3(mvm
);
2167 mvm
->trans
->system_pm_mode
= IWL_PLAT_PM_MODE_DISABLED
;
2172 void iwl_mvm_set_wakeup(struct ieee80211_hw
*hw
, bool enabled
)
2174 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2176 device_set_wakeup_enable(mvm
->trans
->dev
, enabled
);
2179 #ifdef CONFIG_IWLWIFI_DEBUGFS
2180 static int iwl_mvm_d3_test_open(struct inode
*inode
, struct file
*file
)
2182 struct iwl_mvm
*mvm
= inode
->i_private
;
2185 if (mvm
->d3_test_active
)
2188 file
->private_data
= inode
->i_private
;
2190 ieee80211_stop_queues(mvm
->hw
);
2193 mvm
->trans
->system_pm_mode
= IWL_PLAT_PM_MODE_D3
;
2195 /* start pseudo D3 */
2197 err
= __iwl_mvm_suspend(mvm
->hw
, mvm
->hw
->wiphy
->wowlan_config
, true);
2202 ieee80211_wake_queues(mvm
->hw
);
2205 mvm
->d3_test_active
= true;
2206 mvm
->keep_vif
= NULL
;
2210 static ssize_t
iwl_mvm_d3_test_read(struct file
*file
, char __user
*user_buf
,
2211 size_t count
, loff_t
*ppos
)
2213 struct iwl_mvm
*mvm
= file
->private_data
;
2217 /* read pme_ptr if available */
2218 if (mvm
->d3_test_pme_ptr
) {
2219 pme_asserted
= iwl_trans_read_mem32(mvm
->trans
,
2220 mvm
->d3_test_pme_ptr
);
2225 if (msleep_interruptible(100))
2232 static void iwl_mvm_d3_test_disconn_work_iter(void *_data
, u8
*mac
,
2233 struct ieee80211_vif
*vif
)
2235 /* skip the one we keep connection on */
2239 if (vif
->type
== NL80211_IFTYPE_STATION
)
2240 ieee80211_connection_loss(vif
);
2243 static int iwl_mvm_d3_test_release(struct inode
*inode
, struct file
*file
)
2245 struct iwl_mvm
*mvm
= inode
->i_private
;
2246 int remaining_time
= 10;
2248 mvm
->d3_test_active
= false;
2251 __iwl_mvm_resume(mvm
, true);
2254 mvm
->trans
->system_pm_mode
= IWL_PLAT_PM_MODE_DISABLED
;
2256 iwl_abort_notification_waits(&mvm
->notif_wait
);
2257 ieee80211_restart_hw(mvm
->hw
);
2259 /* wait for restart and disconnect all interfaces */
2260 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2261 remaining_time
> 0) {
2266 if (remaining_time
== 0)
2267 IWL_ERR(mvm
, "Timed out waiting for HW restart to finish!\n");
2269 ieee80211_iterate_active_interfaces_atomic(
2270 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
2271 iwl_mvm_d3_test_disconn_work_iter
, mvm
->keep_vif
);
2273 ieee80211_wake_queues(mvm
->hw
);
2278 const struct file_operations iwl_dbgfs_d3_test_ops
= {
2279 .llseek
= no_llseek
,
2280 .open
= iwl_mvm_d3_test_open
,
2281 .read
= iwl_mvm_d3_test_read
,
2282 .release
= iwl_mvm_d3_test_release
,