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
10 * Copyright(c) 2016 Intel Deutschland GmbH
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
26 * The full GNU General Public License is included in this distribution
27 * in the file called COPYING.
29 * Contact Information:
30 * Intel Linux Wireless <linuxwifi@intel.com>
31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
36 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
37 * Copyright(c) 2016 Intel Deutschland GmbH
38 * All rights reserved.
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
44 * * Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * * Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in
48 * the documentation and/or other materials provided with the
50 * * Neither the name Intel Corporation nor the names of its
51 * contributors may be used to endorse or promote products derived
52 * from this software without specific prior written permission.
54 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
55 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
56 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
57 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
58 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
59 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
60 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
64 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
66 *****************************************************************************/
68 #include <linux/etherdevice.h>
71 #include <net/cfg80211.h>
74 #include <net/addrconf.h>
75 #include "iwl-modparams.h"
79 void iwl_mvm_set_rekey_data(struct ieee80211_hw
*hw
,
80 struct ieee80211_vif
*vif
,
81 struct cfg80211_gtk_rekey_data
*data
)
83 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
84 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
86 if (iwlwifi_mod_params
.sw_crypto
)
89 mutex_lock(&mvm
->mutex
);
91 memcpy(mvmvif
->rekey_data
.kek
, data
->kek
, NL80211_KEK_LEN
);
92 memcpy(mvmvif
->rekey_data
.kck
, data
->kck
, NL80211_KCK_LEN
);
93 mvmvif
->rekey_data
.replay_ctr
=
94 cpu_to_le64(be64_to_cpup((__be64
*)&data
->replay_ctr
));
95 mvmvif
->rekey_data
.valid
= true;
97 mutex_unlock(&mvm
->mutex
);
100 #if IS_ENABLED(CONFIG_IPV6)
101 void iwl_mvm_ipv6_addr_change(struct ieee80211_hw
*hw
,
102 struct ieee80211_vif
*vif
,
103 struct inet6_dev
*idev
)
105 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
106 struct inet6_ifaddr
*ifa
;
109 memset(mvmvif
->tentative_addrs
, 0, sizeof(mvmvif
->tentative_addrs
));
111 read_lock_bh(&idev
->lock
);
112 list_for_each_entry(ifa
, &idev
->addr_list
, if_list
) {
113 mvmvif
->target_ipv6_addrs
[idx
] = ifa
->addr
;
114 if (ifa
->flags
& IFA_F_TENTATIVE
)
115 __set_bit(idx
, mvmvif
->tentative_addrs
);
117 if (idx
>= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX
)
120 read_unlock_bh(&idev
->lock
);
122 mvmvif
->num_target_ipv6_addrs
= idx
;
126 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw
*hw
,
127 struct ieee80211_vif
*vif
, int idx
)
129 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
131 mvmvif
->tx_key_idx
= idx
;
134 static void iwl_mvm_convert_p1k(u16
*p1k
, __le16
*out
)
138 for (i
= 0; i
< IWL_P1K_SIZE
; i
++)
139 out
[i
] = cpu_to_le16(p1k
[i
]);
142 static const u8
*iwl_mvm_find_max_pn(struct ieee80211_key_conf
*key
,
143 struct iwl_mvm_key_pn
*ptk_pn
,
144 struct ieee80211_key_seq
*seq
,
147 const u8
*ret
= seq
->ccmp
.pn
;
150 /* get the PN from mac80211, used on the default queue */
151 ieee80211_get_key_rx_seq(key
, tid
, seq
);
153 /* and use the internal data for the other queues */
154 for (i
= 1; i
< queues
; i
++) {
155 const u8
*tmp
= ptk_pn
->q
[i
].pn
[tid
];
157 if (memcmp(ret
, tmp
, IEEE80211_CCMP_PN_LEN
) <= 0)
164 struct wowlan_key_data
{
165 struct iwl_wowlan_rsc_tsc_params_cmd
*rsc_tsc
;
166 struct iwl_wowlan_tkip_params_cmd
*tkip
;
167 bool error
, use_rsc_tsc
, use_tkip
, configure_keys
;
171 static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw
*hw
,
172 struct ieee80211_vif
*vif
,
173 struct ieee80211_sta
*sta
,
174 struct ieee80211_key_conf
*key
,
177 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
178 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
179 struct wowlan_key_data
*data
= _data
;
180 struct aes_sc
*aes_sc
, *aes_tx_sc
= NULL
;
181 struct tkip_sc
*tkip_sc
, *tkip_tx_sc
= NULL
;
182 struct iwl_p1k_cache
*rx_p1ks
;
184 struct ieee80211_key_seq seq
;
186 u16 p1k
[IWL_P1K_SIZE
];
189 switch (key
->cipher
) {
190 case WLAN_CIPHER_SUITE_WEP40
:
191 case WLAN_CIPHER_SUITE_WEP104
: { /* hack it for now */
193 struct iwl_mvm_wep_key_cmd wep_key_cmd
;
194 struct iwl_mvm_wep_key wep_key
;
196 .wep_key_cmd
.mac_id_n_color
=
197 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
199 .wep_key_cmd
.num_keys
= 1,
200 /* firmware sets STA_KEY_FLG_WEP_13BYTES */
201 .wep_key_cmd
.decryption_type
= STA_KEY_FLG_WEP
,
202 .wep_key
.key_index
= key
->keyidx
,
203 .wep_key
.key_size
= key
->keylen
,
207 * This will fail -- the key functions don't set support
208 * pairwise WEP keys. However, that's better than silently
209 * failing WoWLAN. Or maybe not?
211 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
214 memcpy(&wkc
.wep_key
.key
[3], key
->key
, key
->keylen
);
215 if (key
->keyidx
== mvmvif
->tx_key_idx
) {
216 /* TX key must be at offset 0 */
217 wkc
.wep_key
.key_offset
= 0;
219 /* others start at 1 */
221 wkc
.wep_key
.key_offset
= data
->wep_key_idx
;
224 if (data
->configure_keys
) {
225 mutex_lock(&mvm
->mutex
);
226 ret
= iwl_mvm_send_cmd_pdu(mvm
, WEP_KEY
, 0,
228 data
->error
= ret
!= 0;
230 mvm
->ptk_ivlen
= key
->iv_len
;
231 mvm
->ptk_icvlen
= key
->icv_len
;
232 mvm
->gtk_ivlen
= key
->iv_len
;
233 mvm
->gtk_icvlen
= key
->icv_len
;
234 mutex_unlock(&mvm
->mutex
);
237 /* don't upload key again */
243 case WLAN_CIPHER_SUITE_AES_CMAC
:
245 * Ignore CMAC keys -- the WoWLAN firmware doesn't support them
246 * but we also shouldn't abort suspend due to that. It does have
247 * support for the IGTK key renewal, but doesn't really use the
248 * IGTK for anything. This means we could spuriously wake up or
249 * be deauthenticated, but that was considered acceptable.
252 case WLAN_CIPHER_SUITE_TKIP
:
254 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.unicast_rsc
;
255 tkip_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.tkip
.tsc
;
257 rx_p1ks
= data
->tkip
->rx_uni
;
259 ieee80211_get_key_tx_seq(key
, &seq
);
260 tkip_tx_sc
->iv16
= cpu_to_le16(seq
.tkip
.iv16
);
261 tkip_tx_sc
->iv32
= cpu_to_le32(seq
.tkip
.iv32
);
263 ieee80211_get_tkip_p1k_iv(key
, seq
.tkip
.iv32
, p1k
);
264 iwl_mvm_convert_p1k(p1k
, data
->tkip
->tx
.p1k
);
266 memcpy(data
->tkip
->mic_keys
.tx
,
267 &key
->key
[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY
],
270 rx_mic_key
= data
->tkip
->mic_keys
.rx_unicast
;
273 data
->rsc_tsc
->all_tsc_rsc
.tkip
.multicast_rsc
;
274 rx_p1ks
= data
->tkip
->rx_multi
;
275 rx_mic_key
= data
->tkip
->mic_keys
.rx_mcast
;
279 * For non-QoS this relies on the fact that both the uCode and
280 * mac80211 use TID 0 (as they need to to avoid replay attacks)
281 * for checking the IV in the frames.
283 for (i
= 0; i
< IWL_NUM_RSC
; i
++) {
284 ieee80211_get_key_rx_seq(key
, i
, &seq
);
285 tkip_sc
[i
].iv16
= cpu_to_le16(seq
.tkip
.iv16
);
286 tkip_sc
[i
].iv32
= cpu_to_le32(seq
.tkip
.iv32
);
287 /* wrapping isn't allowed, AP must rekey */
288 if (seq
.tkip
.iv32
> cur_rx_iv32
)
289 cur_rx_iv32
= seq
.tkip
.iv32
;
292 ieee80211_get_tkip_rx_p1k(key
, vif
->bss_conf
.bssid
,
294 iwl_mvm_convert_p1k(p1k
, rx_p1ks
[0].p1k
);
295 ieee80211_get_tkip_rx_p1k(key
, vif
->bss_conf
.bssid
,
296 cur_rx_iv32
+ 1, p1k
);
297 iwl_mvm_convert_p1k(p1k
, rx_p1ks
[1].p1k
);
300 &key
->key
[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
],
303 data
->use_tkip
= true;
304 data
->use_rsc_tsc
= true;
306 case WLAN_CIPHER_SUITE_CCMP
:
310 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.unicast_rsc
;
311 aes_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.aes
.tsc
;
313 pn64
= atomic64_read(&key
->tx_pn
);
314 aes_tx_sc
->pn
= cpu_to_le64(pn64
);
316 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.multicast_rsc
;
320 * For non-QoS this relies on the fact that both the uCode and
321 * mac80211/our RX code use TID 0 for checking the PN.
323 if (sta
&& iwl_mvm_has_new_rx_api(mvm
)) {
324 struct iwl_mvm_sta
*mvmsta
;
325 struct iwl_mvm_key_pn
*ptk_pn
;
328 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
329 ptk_pn
= rcu_dereference_protected(
330 mvmsta
->ptk_pn
[key
->keyidx
],
331 lockdep_is_held(&mvm
->mutex
));
332 if (WARN_ON(!ptk_pn
))
335 for (i
= 0; i
< IWL_MAX_TID_COUNT
; i
++) {
336 pn
= iwl_mvm_find_max_pn(key
, ptk_pn
, &seq
, i
,
337 mvm
->trans
->num_rx_queues
);
338 aes_sc
[i
].pn
= cpu_to_le64((u64
)pn
[5] |
346 for (i
= 0; i
< IWL_NUM_RSC
; i
++) {
347 u8
*pn
= seq
.ccmp
.pn
;
349 ieee80211_get_key_rx_seq(key
, i
, &seq
);
350 aes_sc
[i
].pn
= cpu_to_le64((u64
)pn
[5] |
358 data
->use_rsc_tsc
= true;
362 if (data
->configure_keys
) {
363 mutex_lock(&mvm
->mutex
);
365 * The D3 firmware hardcodes the key offset 0 as the key it
366 * uses to transmit packets to the AP, i.e. the PTK.
368 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
) {
369 mvm
->ptk_ivlen
= key
->iv_len
;
370 mvm
->ptk_icvlen
= key
->icv_len
;
371 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, 0);
374 * firmware only supports TSC/RSC for a single key,
375 * so if there are multiple keep overwriting them
376 * with new ones -- this relies on mac80211 doing
379 mvm
->gtk_ivlen
= key
->iv_len
;
380 mvm
->gtk_icvlen
= key
->icv_len
;
381 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, 1);
383 mutex_unlock(&mvm
->mutex
);
384 data
->error
= ret
!= 0;
388 static int iwl_mvm_send_patterns(struct iwl_mvm
*mvm
,
389 struct cfg80211_wowlan
*wowlan
)
391 struct iwl_wowlan_patterns_cmd
*pattern_cmd
;
392 struct iwl_host_cmd cmd
= {
393 .id
= WOWLAN_PATTERNS
,
394 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
398 if (!wowlan
->n_patterns
)
401 cmd
.len
[0] = sizeof(*pattern_cmd
) +
402 wowlan
->n_patterns
* sizeof(struct iwl_wowlan_pattern
);
404 pattern_cmd
= kmalloc(cmd
.len
[0], GFP_KERNEL
);
408 pattern_cmd
->n_patterns
= cpu_to_le32(wowlan
->n_patterns
);
410 for (i
= 0; i
< wowlan
->n_patterns
; i
++) {
411 int mask_len
= DIV_ROUND_UP(wowlan
->patterns
[i
].pattern_len
, 8);
413 memcpy(&pattern_cmd
->patterns
[i
].mask
,
414 wowlan
->patterns
[i
].mask
, mask_len
);
415 memcpy(&pattern_cmd
->patterns
[i
].pattern
,
416 wowlan
->patterns
[i
].pattern
,
417 wowlan
->patterns
[i
].pattern_len
);
418 pattern_cmd
->patterns
[i
].mask_size
= mask_len
;
419 pattern_cmd
->patterns
[i
].pattern_size
=
420 wowlan
->patterns
[i
].pattern_len
;
423 cmd
.data
[0] = pattern_cmd
;
424 err
= iwl_mvm_send_cmd(mvm
, &cmd
);
429 enum iwl_mvm_tcp_packet_type
{
438 static __le16
pseudo_hdr_check(int len
, __be32 saddr
, __be32 daddr
)
440 __sum16 check
= tcp_v4_check(len
, saddr
, daddr
, 0);
441 return cpu_to_le16(be16_to_cpu((__force __be16
)check
));
444 static void iwl_mvm_build_tcp_packet(struct ieee80211_vif
*vif
,
445 struct cfg80211_wowlan_tcp
*tcp
,
446 void *_pkt
, u8
*mask
,
447 __le16
*pseudo_hdr_csum
,
448 enum iwl_mvm_tcp_packet_type ptype
)
455 } __packed
*pkt
= _pkt
;
456 u16 ip_tot_len
= sizeof(struct iphdr
) + sizeof(struct tcphdr
);
459 pkt
->eth
.h_proto
= cpu_to_be16(ETH_P_IP
),
462 pkt
->ip
.protocol
= IPPROTO_TCP
;
466 case MVM_TCP_TX_DATA
:
468 memcpy(pkt
->eth
.h_dest
, tcp
->dst_mac
, ETH_ALEN
);
469 memcpy(pkt
->eth
.h_source
, vif
->addr
, ETH_ALEN
);
471 pkt
->ip
.saddr
= tcp
->src
;
472 pkt
->ip
.daddr
= tcp
->dst
;
473 pkt
->tcp
.source
= cpu_to_be16(tcp
->src_port
);
474 pkt
->tcp
.dest
= cpu_to_be16(tcp
->dst_port
);
475 /* overwritten for TX SYN later */
476 pkt
->tcp
.doff
= sizeof(struct tcphdr
) / 4;
477 pkt
->tcp
.window
= cpu_to_be16(65000);
479 case MVM_TCP_RX_SYNACK
:
481 case MVM_TCP_RX_WAKE
:
482 memcpy(pkt
->eth
.h_dest
, vif
->addr
, ETH_ALEN
);
483 memcpy(pkt
->eth
.h_source
, tcp
->dst_mac
, ETH_ALEN
);
484 pkt
->ip
.saddr
= tcp
->dst
;
485 pkt
->ip
.daddr
= tcp
->src
;
486 pkt
->tcp
.source
= cpu_to_be16(tcp
->dst_port
);
487 pkt
->tcp
.dest
= cpu_to_be16(tcp
->src_port
);
496 /* firmware assumes 8 option bytes - 8 NOPs for now */
497 memset(pkt
->data
, 0x01, 8);
499 pkt
->tcp
.doff
= (sizeof(struct tcphdr
) + 8) / 4;
502 case MVM_TCP_TX_DATA
:
503 ip_tot_len
+= tcp
->payload_len
;
504 memcpy(pkt
->data
, tcp
->payload
, tcp
->payload_len
);
512 case MVM_TCP_RX_SYNACK
:
519 case MVM_TCP_RX_WAKE
:
520 ip_tot_len
+= tcp
->wake_len
;
523 memcpy(pkt
->data
, tcp
->wake_data
, tcp
->wake_len
);
529 case MVM_TCP_TX_DATA
:
531 pkt
->ip
.tot_len
= cpu_to_be16(ip_tot_len
);
532 pkt
->ip
.check
= ip_fast_csum(&pkt
->ip
, pkt
->ip
.ihl
);
534 case MVM_TCP_RX_WAKE
:
535 for (i
= 0; i
< DIV_ROUND_UP(tcp
->wake_len
, 8); i
++) {
536 u8 tmp
= tcp
->wake_mask
[i
];
537 mask
[i
+ 6] |= tmp
<< 6;
538 if (i
+ 1 < DIV_ROUND_UP(tcp
->wake_len
, 8))
539 mask
[i
+ 7] = tmp
>> 2;
541 /* fall through for ethernet/IP/TCP headers mask */
542 case MVM_TCP_RX_SYNACK
:
544 mask
[0] = 0xff; /* match ethernet */
546 * match ethernet, ip.version, ip.ihl
547 * the ip.ihl half byte is really masked out by firmware
550 mask
[2] = 0x80; /* match ip.protocol */
551 mask
[3] = 0xfc; /* match ip.saddr, ip.daddr */
552 mask
[4] = 0x3f; /* match ip.daddr, tcp.source, tcp.dest */
553 mask
[5] = 0x80; /* match tcp flags */
554 /* leave rest (0 or set for MVM_TCP_RX_WAKE) */
558 *pseudo_hdr_csum
= pseudo_hdr_check(ip_tot_len
- sizeof(struct iphdr
),
559 pkt
->ip
.saddr
, pkt
->ip
.daddr
);
562 static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm
*mvm
,
563 struct ieee80211_vif
*vif
,
564 struct cfg80211_wowlan_tcp
*tcp
)
566 struct iwl_wowlan_remote_wake_config
*cfg
;
567 struct iwl_host_cmd cmd
= {
568 .id
= REMOTE_WAKE_CONFIG_CMD
,
569 .len
= { sizeof(*cfg
), },
570 .dataflags
= { IWL_HCMD_DFL_NOCOPY
, },
577 cfg
= kzalloc(sizeof(*cfg
), GFP_KERNEL
);
582 cfg
->max_syn_retries
= 10;
583 cfg
->max_data_retries
= 10;
584 cfg
->tcp_syn_ack_timeout
= 1; /* seconds */
585 cfg
->tcp_ack_timeout
= 1; /* seconds */
588 iwl_mvm_build_tcp_packet(
589 vif
, tcp
, cfg
->syn_tx
.data
, NULL
,
590 &cfg
->syn_tx
.info
.tcp_pseudo_header_checksum
,
592 cfg
->syn_tx
.info
.tcp_payload_length
= 0;
595 iwl_mvm_build_tcp_packet(
596 vif
, tcp
, cfg
->synack_rx
.data
, cfg
->synack_rx
.rx_mask
,
597 &cfg
->synack_rx
.info
.tcp_pseudo_header_checksum
,
599 cfg
->synack_rx
.info
.tcp_payload_length
= 0;
601 /* KEEPALIVE/ACK (TX) */
602 iwl_mvm_build_tcp_packet(
603 vif
, tcp
, cfg
->keepalive_tx
.data
, NULL
,
604 &cfg
->keepalive_tx
.info
.tcp_pseudo_header_checksum
,
606 cfg
->keepalive_tx
.info
.tcp_payload_length
=
607 cpu_to_le16(tcp
->payload_len
);
608 cfg
->sequence_number_offset
= tcp
->payload_seq
.offset
;
609 /* length must be 0..4, the field is little endian */
610 cfg
->sequence_number_length
= tcp
->payload_seq
.len
;
611 cfg
->initial_sequence_number
= cpu_to_le32(tcp
->payload_seq
.start
);
612 cfg
->keepalive_interval
= cpu_to_le16(tcp
->data_interval
);
613 if (tcp
->payload_tok
.len
) {
614 cfg
->token_offset
= tcp
->payload_tok
.offset
;
615 cfg
->token_length
= tcp
->payload_tok
.len
;
617 cpu_to_le16(tcp
->tokens_size
% tcp
->payload_tok
.len
);
618 memcpy(cfg
->tokens
, tcp
->payload_tok
.token_stream
,
621 /* set tokens to max value to almost never run out */
622 cfg
->num_tokens
= cpu_to_le16(65535);
626 iwl_mvm_build_tcp_packet(
627 vif
, tcp
, cfg
->keepalive_ack_rx
.data
,
628 cfg
->keepalive_ack_rx
.rx_mask
,
629 &cfg
->keepalive_ack_rx
.info
.tcp_pseudo_header_checksum
,
631 cfg
->keepalive_ack_rx
.info
.tcp_payload_length
= 0;
634 iwl_mvm_build_tcp_packet(
635 vif
, tcp
, cfg
->wake_rx
.data
, cfg
->wake_rx
.rx_mask
,
636 &cfg
->wake_rx
.info
.tcp_pseudo_header_checksum
,
638 cfg
->wake_rx
.info
.tcp_payload_length
=
639 cpu_to_le16(tcp
->wake_len
);
642 iwl_mvm_build_tcp_packet(
643 vif
, tcp
, cfg
->fin_tx
.data
, NULL
,
644 &cfg
->fin_tx
.info
.tcp_pseudo_header_checksum
,
646 cfg
->fin_tx
.info
.tcp_payload_length
= 0;
648 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
654 static int iwl_mvm_d3_reprogram(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
655 struct ieee80211_sta
*ap_sta
)
657 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
658 struct ieee80211_chanctx_conf
*ctx
;
659 u8 chains_static
, chains_dynamic
;
660 struct cfg80211_chan_def chandef
;
662 struct iwl_binding_cmd binding_cmd
= {};
663 struct iwl_time_quota_cmd quota_cmd
= {};
666 /* add back the PHY */
667 if (WARN_ON(!mvmvif
->phy_ctxt
))
671 ctx
= rcu_dereference(vif
->chanctx_conf
);
677 chains_static
= ctx
->rx_chains_static
;
678 chains_dynamic
= ctx
->rx_chains_dynamic
;
681 ret
= iwl_mvm_phy_ctxt_add(mvm
, mvmvif
->phy_ctxt
, &chandef
,
682 chains_static
, chains_dynamic
);
686 /* add back the MAC */
687 mvmvif
->uploaded
= false;
689 if (WARN_ON(!vif
->bss_conf
.assoc
))
692 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
696 /* add back binding - XXX refactor? */
697 binding_cmd
.id_and_color
=
698 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
699 mvmvif
->phy_ctxt
->color
));
700 binding_cmd
.action
= cpu_to_le32(FW_CTXT_ACTION_ADD
);
702 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
703 mvmvif
->phy_ctxt
->color
));
704 binding_cmd
.macs
[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
706 for (i
= 1; i
< MAX_MACS_IN_BINDING
; i
++)
707 binding_cmd
.macs
[i
] = cpu_to_le32(FW_CTXT_INVALID
);
710 ret
= iwl_mvm_send_cmd_pdu_status(mvm
, BINDING_CONTEXT_CMD
,
711 sizeof(binding_cmd
), &binding_cmd
,
714 IWL_ERR(mvm
, "Failed to add binding: %d\n", ret
);
719 IWL_ERR(mvm
, "Binding command failed: %u\n", status
);
723 ret
= iwl_mvm_sta_send_to_fw(mvm
, ap_sta
, false);
726 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvmvif
->ap_sta_id
], ap_sta
);
728 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
733 quota_cmd
.quotas
[0].id_and_color
=
734 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
735 mvmvif
->phy_ctxt
->color
));
736 quota_cmd
.quotas
[0].quota
= cpu_to_le32(IWL_MVM_MAX_QUOTA
);
737 quota_cmd
.quotas
[0].max_duration
= cpu_to_le32(IWL_MVM_MAX_QUOTA
);
739 for (i
= 1; i
< MAX_BINDINGS
; i
++)
740 quota_cmd
.quotas
[i
].id_and_color
= cpu_to_le32(FW_CTXT_INVALID
);
742 ret
= iwl_mvm_send_cmd_pdu(mvm
, TIME_QUOTA_CMD
, 0,
743 sizeof(quota_cmd
), "a_cmd
);
745 IWL_ERR(mvm
, "Failed to send quota: %d\n", ret
);
747 if (iwl_mvm_is_lar_supported(mvm
) && iwl_mvm_init_fw_regd(mvm
))
748 IWL_ERR(mvm
, "Failed to initialize D3 LAR information\n");
753 static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm
*mvm
,
754 struct ieee80211_vif
*vif
)
756 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
757 struct iwl_nonqos_seq_query_cmd query_cmd
= {
758 .get_set_flag
= cpu_to_le32(IWL_NONQOS_SEQ_GET
),
760 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
763 struct iwl_host_cmd cmd
= {
764 .id
= NON_QOS_TX_COUNTER_CMD
,
765 .flags
= CMD_WANT_SKB
,
770 cmd
.data
[0] = &query_cmd
;
771 cmd
.len
[0] = sizeof(query_cmd
);
773 err
= iwl_mvm_send_cmd(mvm
, &cmd
);
777 size
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
778 if (size
< sizeof(__le16
)) {
781 err
= le16_to_cpup((__le16
*)cmd
.resp_pkt
->data
);
782 /* firmware returns next, not last-used seqno */
783 err
= (u16
) (err
- 0x10);
790 void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
792 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
793 struct iwl_nonqos_seq_query_cmd query_cmd
= {
794 .get_set_flag
= cpu_to_le32(IWL_NONQOS_SEQ_SET
),
796 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
798 .value
= cpu_to_le16(mvmvif
->seqno
),
801 /* return if called during restart, not resume from D3 */
802 if (!mvmvif
->seqno_valid
)
805 mvmvif
->seqno_valid
= false;
807 if (iwl_mvm_send_cmd_pdu(mvm
, NON_QOS_TX_COUNTER_CMD
, 0,
808 sizeof(query_cmd
), &query_cmd
))
809 IWL_ERR(mvm
, "failed to set non-QoS seqno\n");
812 static int iwl_mvm_switch_to_d3(struct iwl_mvm
*mvm
)
814 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_REGULAR
, true);
816 iwl_trans_stop_device(mvm
->trans
);
819 * Set the HW restart bit -- this is mostly true as we're
820 * going to load new firmware and reprogram that, though
821 * the reprogramming is going to be manual to avoid adding
822 * all the MACs that aren't support.
823 * We don't have to clear up everything though because the
824 * reprogramming is manual. When we resume, we'll actually
825 * go through a proper restart sequence again to switch
826 * back to the runtime firmware image.
828 set_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
830 /* the fw is reset, so all the keys are cleared */
831 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
838 return iwl_mvm_load_d3_fw(mvm
);
842 iwl_mvm_get_wowlan_config(struct iwl_mvm
*mvm
,
843 struct cfg80211_wowlan
*wowlan
,
844 struct iwl_wowlan_config_cmd
*wowlan_config_cmd
,
845 struct ieee80211_vif
*vif
, struct iwl_mvm_vif
*mvmvif
,
846 struct ieee80211_sta
*ap_sta
)
849 struct iwl_mvm_sta
*mvm_ap_sta
= iwl_mvm_sta_from_mac80211(ap_sta
);
851 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
853 wowlan_config_cmd
->is_11n_connection
=
854 ap_sta
->ht_cap
.ht_supported
;
855 wowlan_config_cmd
->flags
= ENABLE_L3_FILTERING
|
856 ENABLE_NBNS_FILTERING
| ENABLE_DHCP_FILTERING
|
859 /* Query the last used seqno and set it */
860 ret
= iwl_mvm_get_last_nonqos_seq(mvm
, vif
);
864 wowlan_config_cmd
->non_qos_seq
= cpu_to_le16(ret
);
866 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta
, wowlan_config_cmd
);
868 if (wowlan
->disconnect
)
869 wowlan_config_cmd
->wakeup_filter
|=
870 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS
|
871 IWL_WOWLAN_WAKEUP_LINK_CHANGE
);
872 if (wowlan
->magic_pkt
)
873 wowlan_config_cmd
->wakeup_filter
|=
874 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET
);
875 if (wowlan
->gtk_rekey_failure
)
876 wowlan_config_cmd
->wakeup_filter
|=
877 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL
);
878 if (wowlan
->eap_identity_req
)
879 wowlan_config_cmd
->wakeup_filter
|=
880 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ
);
881 if (wowlan
->four_way_handshake
)
882 wowlan_config_cmd
->wakeup_filter
|=
883 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE
);
884 if (wowlan
->n_patterns
)
885 wowlan_config_cmd
->wakeup_filter
|=
886 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH
);
888 if (wowlan
->rfkill_release
)
889 wowlan_config_cmd
->wakeup_filter
|=
890 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT
);
894 * Set the "link change" (really "link lost") flag as well
895 * since that implies losing the TCP connection.
897 wowlan_config_cmd
->wakeup_filter
|=
898 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS
|
899 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE
|
900 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET
|
901 IWL_WOWLAN_WAKEUP_LINK_CHANGE
);
908 iwl_mvm_iter_d0i3_ap_keys(struct iwl_mvm
*mvm
,
909 struct ieee80211_vif
*vif
,
910 void (*iter
)(struct ieee80211_hw
*hw
,
911 struct ieee80211_vif
*vif
,
912 struct ieee80211_sta
*sta
,
913 struct ieee80211_key_conf
*key
,
917 struct ieee80211_sta
*ap_sta
;
921 ap_sta
= rcu_dereference(mvm
->fw_id_to_mac_id
[mvm
->d0i3_ap_sta_id
]);
922 if (IS_ERR_OR_NULL(ap_sta
))
925 ieee80211_iter_keys_rcu(mvm
->hw
, vif
, iter
, data
);
930 int iwl_mvm_wowlan_config_key_params(struct iwl_mvm
*mvm
,
931 struct ieee80211_vif
*vif
,
935 struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd
= {};
936 struct iwl_wowlan_tkip_params_cmd tkip_cmd
= {};
937 struct wowlan_key_data key_data
= {
938 .configure_keys
= !d0i3
,
939 .use_rsc_tsc
= false,
943 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
946 key_data
.rsc_tsc
= kzalloc(sizeof(*key_data
.rsc_tsc
), GFP_KERNEL
);
947 if (!key_data
.rsc_tsc
)
951 * if we have to configure keys, call ieee80211_iter_keys(),
952 * as we need non-atomic context in order to take the
954 * for the d0i3 we can't use ieee80211_iter_keys(), as
955 * taking (almost) any mutex might result in deadlock.
959 * Note that currently we don't propagate cmd_flags
960 * to the iterator. In case of key_data.configure_keys,
961 * all the configured commands are SYNC, and
962 * iwl_mvm_wowlan_program_keys() will take care of
963 * locking/unlocking mvm->mutex.
965 ieee80211_iter_keys(mvm
->hw
, vif
,
966 iwl_mvm_wowlan_program_keys
,
969 iwl_mvm_iter_d0i3_ap_keys(mvm
, vif
,
970 iwl_mvm_wowlan_program_keys
,
974 if (key_data
.error
) {
979 if (key_data
.use_rsc_tsc
) {
980 ret
= iwl_mvm_send_cmd_pdu(mvm
,
981 WOWLAN_TSC_RSC_PARAM
, cmd_flags
,
982 sizeof(*key_data
.rsc_tsc
),
988 if (key_data
.use_tkip
) {
989 ret
= iwl_mvm_send_cmd_pdu(mvm
,
991 cmd_flags
, sizeof(tkip_cmd
),
997 /* configure rekey data only if offloaded rekey is supported (d3) */
998 if (mvmvif
->rekey_data
.valid
&& !d0i3
) {
999 memset(&kek_kck_cmd
, 0, sizeof(kek_kck_cmd
));
1000 memcpy(kek_kck_cmd
.kck
, mvmvif
->rekey_data
.kck
,
1002 kek_kck_cmd
.kck_len
= cpu_to_le16(NL80211_KCK_LEN
);
1003 memcpy(kek_kck_cmd
.kek
, mvmvif
->rekey_data
.kek
,
1005 kek_kck_cmd
.kek_len
= cpu_to_le16(NL80211_KEK_LEN
);
1006 kek_kck_cmd
.replay_ctr
= mvmvif
->rekey_data
.replay_ctr
;
1008 ret
= iwl_mvm_send_cmd_pdu(mvm
,
1009 WOWLAN_KEK_KCK_MATERIAL
, cmd_flags
,
1010 sizeof(kek_kck_cmd
),
1017 kfree(key_data
.rsc_tsc
);
1022 iwl_mvm_wowlan_config(struct iwl_mvm
*mvm
,
1023 struct cfg80211_wowlan
*wowlan
,
1024 struct iwl_wowlan_config_cmd
*wowlan_config_cmd
,
1025 struct ieee80211_vif
*vif
, struct iwl_mvm_vif
*mvmvif
,
1026 struct ieee80211_sta
*ap_sta
)
1029 bool unified_image
= fw_has_capa(&mvm
->fw
->ucode_capa
,
1030 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG
);
1032 if (!unified_image
) {
1033 ret
= iwl_mvm_switch_to_d3(mvm
);
1037 ret
= iwl_mvm_d3_reprogram(mvm
, vif
, ap_sta
);
1042 if (!iwlwifi_mod_params
.sw_crypto
) {
1044 * This needs to be unlocked due to lock ordering
1045 * constraints. Since we're in the suspend path
1046 * that isn't really a problem though.
1048 mutex_unlock(&mvm
->mutex
);
1049 ret
= iwl_mvm_wowlan_config_key_params(mvm
, vif
, false,
1051 mutex_lock(&mvm
->mutex
);
1056 ret
= iwl_mvm_send_cmd_pdu(mvm
, WOWLAN_CONFIGURATION
, 0,
1057 sizeof(*wowlan_config_cmd
),
1062 ret
= iwl_mvm_send_patterns(mvm
, wowlan
);
1066 ret
= iwl_mvm_send_proto_offload(mvm
, vif
, false, true, 0);
1070 ret
= iwl_mvm_send_remote_wake_cfg(mvm
, vif
, wowlan
->tcp
);
1075 iwl_mvm_netdetect_config(struct iwl_mvm
*mvm
,
1076 struct cfg80211_wowlan
*wowlan
,
1077 struct cfg80211_sched_scan_request
*nd_config
,
1078 struct ieee80211_vif
*vif
)
1080 struct iwl_wowlan_config_cmd wowlan_config_cmd
= {};
1082 bool unified_image
= fw_has_capa(&mvm
->fw
->ucode_capa
,
1083 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG
);
1085 if (!unified_image
) {
1086 ret
= iwl_mvm_switch_to_d3(mvm
);
1091 /* rfkill release can be either for wowlan or netdetect */
1092 if (wowlan
->rfkill_release
)
1093 wowlan_config_cmd
.wakeup_filter
|=
1094 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT
);
1096 ret
= iwl_mvm_send_cmd_pdu(mvm
, WOWLAN_CONFIGURATION
, 0,
1097 sizeof(wowlan_config_cmd
),
1098 &wowlan_config_cmd
);
1102 ret
= iwl_mvm_sched_scan_start(mvm
, vif
, nd_config
, &mvm
->nd_ies
,
1103 IWL_MVM_SCAN_NETDETECT
);
1107 if (WARN_ON(mvm
->nd_match_sets
|| mvm
->nd_channels
))
1110 /* save the sched scan matchsets... */
1111 if (nd_config
->n_match_sets
) {
1112 mvm
->nd_match_sets
= kmemdup(nd_config
->match_sets
,
1113 sizeof(*nd_config
->match_sets
) *
1114 nd_config
->n_match_sets
,
1116 if (mvm
->nd_match_sets
)
1117 mvm
->n_nd_match_sets
= nd_config
->n_match_sets
;
1120 /* ...and the sched scan channels for later reporting */
1121 mvm
->nd_channels
= kmemdup(nd_config
->channels
,
1122 sizeof(*nd_config
->channels
) *
1123 nd_config
->n_channels
,
1125 if (mvm
->nd_channels
)
1126 mvm
->n_nd_channels
= nd_config
->n_channels
;
1131 static void iwl_mvm_free_nd(struct iwl_mvm
*mvm
)
1133 kfree(mvm
->nd_match_sets
);
1134 mvm
->nd_match_sets
= NULL
;
1135 mvm
->n_nd_match_sets
= 0;
1136 kfree(mvm
->nd_channels
);
1137 mvm
->nd_channels
= NULL
;
1138 mvm
->n_nd_channels
= 0;
1141 static int __iwl_mvm_suspend(struct ieee80211_hw
*hw
,
1142 struct cfg80211_wowlan
*wowlan
,
1145 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1146 struct ieee80211_vif
*vif
= NULL
;
1147 struct iwl_mvm_vif
*mvmvif
= NULL
;
1148 struct ieee80211_sta
*ap_sta
= NULL
;
1149 struct iwl_d3_manager_config d3_cfg_cmd_data
= {
1151 * Program the minimum sleep time to 10 seconds, as many
1152 * platforms have issues processing a wakeup signal while
1153 * still being in the process of suspending.
1155 .min_sleep_time
= cpu_to_le32(10 * 1000 * 1000),
1157 struct iwl_host_cmd d3_cfg_cmd
= {
1158 .id
= D3_CONFIG_CMD
,
1159 .flags
= CMD_WANT_SKB
,
1160 .data
[0] = &d3_cfg_cmd_data
,
1161 .len
[0] = sizeof(d3_cfg_cmd_data
),
1164 int len __maybe_unused
;
1165 bool unified_image
= fw_has_capa(&mvm
->fw
->ucode_capa
,
1166 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG
);
1170 * mac80211 shouldn't get here, but for D3 test
1171 * it doesn't warrant a warning
1177 mutex_lock(&mvm
->mutex
);
1179 vif
= iwl_mvm_get_bss_vif(mvm
);
1180 if (IS_ERR_OR_NULL(vif
)) {
1185 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1187 if (mvmvif
->ap_sta_id
== IWL_MVM_STATION_COUNT
) {
1188 /* if we're not associated, this must be netdetect */
1189 if (!wowlan
->nd_config
) {
1194 ret
= iwl_mvm_netdetect_config(
1195 mvm
, wowlan
, wowlan
->nd_config
, vif
);
1199 mvm
->net_detect
= true;
1201 struct iwl_wowlan_config_cmd wowlan_config_cmd
= {};
1203 ap_sta
= rcu_dereference_protected(
1204 mvm
->fw_id_to_mac_id
[mvmvif
->ap_sta_id
],
1205 lockdep_is_held(&mvm
->mutex
));
1206 if (IS_ERR_OR_NULL(ap_sta
)) {
1211 ret
= iwl_mvm_get_wowlan_config(mvm
, wowlan
, &wowlan_config_cmd
,
1212 vif
, mvmvif
, ap_sta
);
1215 ret
= iwl_mvm_wowlan_config(mvm
, wowlan
, &wowlan_config_cmd
,
1216 vif
, mvmvif
, ap_sta
);
1220 mvm
->net_detect
= false;
1223 ret
= iwl_mvm_power_update_device(mvm
);
1227 ret
= iwl_mvm_power_update_mac(mvm
);
1231 #ifdef CONFIG_IWLWIFI_DEBUGFS
1232 if (mvm
->d3_wake_sysassert
)
1233 d3_cfg_cmd_data
.wakeup_flags
|=
1234 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR
);
1237 /* must be last -- this switches firmware state */
1238 ret
= iwl_mvm_send_cmd(mvm
, &d3_cfg_cmd
);
1241 #ifdef CONFIG_IWLWIFI_DEBUGFS
1242 len
= iwl_rx_packet_payload_len(d3_cfg_cmd
.resp_pkt
);
1243 if (len
>= sizeof(u32
)) {
1244 mvm
->d3_test_pme_ptr
=
1245 le32_to_cpup((__le32
*)d3_cfg_cmd
.resp_pkt
->data
);
1248 iwl_free_resp(&d3_cfg_cmd
);
1250 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1252 iwl_trans_d3_suspend(mvm
->trans
, test
, !unified_image
);
1255 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1256 ieee80211_restart_hw(mvm
->hw
);
1257 iwl_mvm_free_nd(mvm
);
1260 mutex_unlock(&mvm
->mutex
);
1265 static int iwl_mvm_enter_d0i3_sync(struct iwl_mvm
*mvm
)
1267 struct iwl_notification_wait wait_d3
;
1268 static const u16 d3_notif
[] = { D3_CONFIG_CMD
};
1271 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_d3
,
1272 d3_notif
, ARRAY_SIZE(d3_notif
),
1275 ret
= iwl_mvm_enter_d0i3(mvm
->hw
->priv
);
1279 ret
= iwl_wait_notification(&mvm
->notif_wait
, &wait_d3
, HZ
);
1284 iwl_remove_notification(&mvm
->notif_wait
, &wait_d3
);
1288 int iwl_mvm_suspend(struct ieee80211_hw
*hw
, struct cfg80211_wowlan
*wowlan
)
1290 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1291 struct iwl_trans
*trans
= mvm
->trans
;
1294 /* make sure the d0i3 exit work is not pending */
1295 flush_work(&mvm
->d0i3_exit_work
);
1297 ret
= iwl_trans_suspend(trans
);
1302 trans
->system_pm_mode
= IWL_PLAT_PM_MODE_D0I3
;
1304 if (iwl_mvm_enter_d0i3_on_suspend(mvm
)) {
1305 ret
= iwl_mvm_enter_d0i3_sync(mvm
);
1311 mutex_lock(&mvm
->d0i3_suspend_mutex
);
1312 __set_bit(D0I3_DEFER_WAKEUP
, &mvm
->d0i3_suspend_flags
);
1313 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
1315 iwl_trans_d3_suspend(trans
, false, false);
1320 trans
->system_pm_mode
= IWL_PLAT_PM_MODE_D3
;
1322 return __iwl_mvm_suspend(hw
, wowlan
, false);
1325 /* converted data from the different status responses */
1326 struct iwl_wowlan_status_data
{
1330 u32 wake_packet_length
;
1331 u32 wake_packet_bufsize
;
1332 const u8
*wake_packet
;
1335 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm
*mvm
,
1336 struct ieee80211_vif
*vif
,
1337 struct iwl_wowlan_status_data
*status
)
1339 struct sk_buff
*pkt
= NULL
;
1340 struct cfg80211_wowlan_wakeup wakeup
= {
1343 struct cfg80211_wowlan_wakeup
*wakeup_report
= &wakeup
;
1344 u32 reasons
= status
->wakeup_reasons
;
1346 if (reasons
== IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS
) {
1347 wakeup_report
= NULL
;
1351 pm_wakeup_event(mvm
->dev
, 0);
1353 if (reasons
& IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET
)
1354 wakeup
.magic_pkt
= true;
1356 if (reasons
& IWL_WOWLAN_WAKEUP_BY_PATTERN
)
1357 wakeup
.pattern_idx
=
1358 status
->pattern_number
;
1360 if (reasons
& (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON
|
1361 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH
))
1362 wakeup
.disconnect
= true;
1364 if (reasons
& IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE
)
1365 wakeup
.gtk_rekey_failure
= true;
1367 if (reasons
& IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED
)
1368 wakeup
.rfkill_release
= true;
1370 if (reasons
& IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST
)
1371 wakeup
.eap_identity_req
= true;
1373 if (reasons
& IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE
)
1374 wakeup
.four_way_handshake
= true;
1376 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS
)
1377 wakeup
.tcp_connlost
= true;
1379 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE
)
1380 wakeup
.tcp_nomoretokens
= true;
1382 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET
)
1383 wakeup
.tcp_match
= true;
1385 if (status
->wake_packet_bufsize
) {
1386 int pktsize
= status
->wake_packet_bufsize
;
1387 int pktlen
= status
->wake_packet_length
;
1388 const u8
*pktdata
= status
->wake_packet
;
1389 struct ieee80211_hdr
*hdr
= (void *)pktdata
;
1390 int truncated
= pktlen
- pktsize
;
1392 /* this would be a firmware bug */
1393 if (WARN_ON_ONCE(truncated
< 0))
1396 if (ieee80211_is_data(hdr
->frame_control
)) {
1397 int hdrlen
= ieee80211_hdrlen(hdr
->frame_control
);
1398 int ivlen
= 0, icvlen
= 4; /* also FCS */
1400 pkt
= alloc_skb(pktsize
, GFP_KERNEL
);
1404 memcpy(skb_put(pkt
, hdrlen
), pktdata
, hdrlen
);
1408 if (ieee80211_has_protected(hdr
->frame_control
)) {
1410 * This is unlocked and using gtk_i(c)vlen,
1411 * but since everything is under RTNL still
1412 * that's not really a problem - changing
1413 * it would be difficult.
1415 if (is_multicast_ether_addr(hdr
->addr1
)) {
1416 ivlen
= mvm
->gtk_ivlen
;
1417 icvlen
+= mvm
->gtk_icvlen
;
1419 ivlen
= mvm
->ptk_ivlen
;
1420 icvlen
+= mvm
->ptk_icvlen
;
1424 /* if truncated, FCS/ICV is (partially) gone */
1425 if (truncated
>= icvlen
) {
1427 truncated
-= icvlen
;
1429 icvlen
-= truncated
;
1433 pktsize
-= ivlen
+ icvlen
;
1436 memcpy(skb_put(pkt
, pktsize
), pktdata
, pktsize
);
1438 if (ieee80211_data_to_8023(pkt
, vif
->addr
, vif
->type
))
1440 wakeup
.packet
= pkt
->data
;
1441 wakeup
.packet_present_len
= pkt
->len
;
1442 wakeup
.packet_len
= pkt
->len
- truncated
;
1443 wakeup
.packet_80211
= false;
1447 if (truncated
>= 4) {
1451 fcslen
-= truncated
;
1455 wakeup
.packet
= status
->wake_packet
;
1456 wakeup
.packet_present_len
= pktsize
;
1457 wakeup
.packet_len
= pktlen
- truncated
;
1458 wakeup
.packet_80211
= true;
1463 ieee80211_report_wowlan_wakeup(vif
, wakeup_report
, GFP_KERNEL
);
1467 static void iwl_mvm_aes_sc_to_seq(struct aes_sc
*sc
,
1468 struct ieee80211_key_seq
*seq
)
1472 pn
= le64_to_cpu(sc
->pn
);
1473 seq
->ccmp
.pn
[0] = pn
>> 40;
1474 seq
->ccmp
.pn
[1] = pn
>> 32;
1475 seq
->ccmp
.pn
[2] = pn
>> 24;
1476 seq
->ccmp
.pn
[3] = pn
>> 16;
1477 seq
->ccmp
.pn
[4] = pn
>> 8;
1478 seq
->ccmp
.pn
[5] = pn
;
1481 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc
*sc
,
1482 struct ieee80211_key_seq
*seq
)
1484 seq
->tkip
.iv32
= le32_to_cpu(sc
->iv32
);
1485 seq
->tkip
.iv16
= le16_to_cpu(sc
->iv16
);
1488 static void iwl_mvm_set_aes_rx_seq(struct iwl_mvm
*mvm
, struct aes_sc
*scs
,
1489 struct ieee80211_sta
*sta
,
1490 struct ieee80211_key_conf
*key
)
1494 BUILD_BUG_ON(IWL_NUM_RSC
!= IEEE80211_NUM_TIDS
);
1496 if (sta
&& iwl_mvm_has_new_rx_api(mvm
)) {
1497 struct iwl_mvm_sta
*mvmsta
;
1498 struct iwl_mvm_key_pn
*ptk_pn
;
1500 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
1502 ptk_pn
= rcu_dereference_protected(mvmsta
->ptk_pn
[key
->keyidx
],
1503 lockdep_is_held(&mvm
->mutex
));
1504 if (WARN_ON(!ptk_pn
))
1507 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
1508 struct ieee80211_key_seq seq
= {};
1511 iwl_mvm_aes_sc_to_seq(&scs
[tid
], &seq
);
1512 ieee80211_set_key_rx_seq(key
, tid
, &seq
);
1513 for (i
= 1; i
< mvm
->trans
->num_rx_queues
; i
++)
1514 memcpy(ptk_pn
->q
[i
].pn
[tid
],
1515 seq
.ccmp
.pn
, IEEE80211_CCMP_PN_LEN
);
1518 for (tid
= 0; tid
< IWL_NUM_RSC
; tid
++) {
1519 struct ieee80211_key_seq seq
= {};
1521 iwl_mvm_aes_sc_to_seq(&scs
[tid
], &seq
);
1522 ieee80211_set_key_rx_seq(key
, tid
, &seq
);
1527 static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc
*scs
,
1528 struct ieee80211_key_conf
*key
)
1532 BUILD_BUG_ON(IWL_NUM_RSC
!= IEEE80211_NUM_TIDS
);
1534 for (tid
= 0; tid
< IWL_NUM_RSC
; tid
++) {
1535 struct ieee80211_key_seq seq
= {};
1537 iwl_mvm_tkip_sc_to_seq(&scs
[tid
], &seq
);
1538 ieee80211_set_key_rx_seq(key
, tid
, &seq
);
1542 static void iwl_mvm_set_key_rx_seq(struct iwl_mvm
*mvm
,
1543 struct ieee80211_key_conf
*key
,
1544 struct iwl_wowlan_status
*status
)
1546 union iwl_all_tsc_rsc
*rsc
= &status
->gtk
.rsc
.all_tsc_rsc
;
1548 switch (key
->cipher
) {
1549 case WLAN_CIPHER_SUITE_CCMP
:
1550 iwl_mvm_set_aes_rx_seq(mvm
, rsc
->aes
.multicast_rsc
, NULL
, key
);
1552 case WLAN_CIPHER_SUITE_TKIP
:
1553 iwl_mvm_set_tkip_rx_seq(rsc
->tkip
.multicast_rsc
, key
);
1560 struct iwl_mvm_d3_gtk_iter_data
{
1561 struct iwl_mvm
*mvm
;
1562 struct iwl_wowlan_status
*status
;
1565 bool find_phase
, unhandled_cipher
;
1569 static void iwl_mvm_d3_update_keys(struct ieee80211_hw
*hw
,
1570 struct ieee80211_vif
*vif
,
1571 struct ieee80211_sta
*sta
,
1572 struct ieee80211_key_conf
*key
,
1575 struct iwl_mvm_d3_gtk_iter_data
*data
= _data
;
1577 if (data
->unhandled_cipher
)
1580 switch (key
->cipher
) {
1581 case WLAN_CIPHER_SUITE_WEP40
:
1582 case WLAN_CIPHER_SUITE_WEP104
:
1583 /* ignore WEP completely, nothing to do */
1585 case WLAN_CIPHER_SUITE_CCMP
:
1586 case WLAN_CIPHER_SUITE_TKIP
:
1587 /* we support these */
1590 /* everything else (even CMAC for MFP) - disconnect from AP */
1591 data
->unhandled_cipher
= true;
1598 * pairwise key - update sequence counters only;
1599 * note that this assumes no TDLS sessions are active
1602 struct ieee80211_key_seq seq
= {};
1603 union iwl_all_tsc_rsc
*sc
= &data
->status
->gtk
.rsc
.all_tsc_rsc
;
1605 if (data
->find_phase
)
1608 switch (key
->cipher
) {
1609 case WLAN_CIPHER_SUITE_CCMP
:
1610 iwl_mvm_set_aes_rx_seq(data
->mvm
, sc
->aes
.unicast_rsc
,
1612 atomic64_set(&key
->tx_pn
, le64_to_cpu(sc
->aes
.tsc
.pn
));
1614 case WLAN_CIPHER_SUITE_TKIP
:
1615 iwl_mvm_tkip_sc_to_seq(&sc
->tkip
.tsc
, &seq
);
1616 iwl_mvm_set_tkip_rx_seq(sc
->tkip
.unicast_rsc
, key
);
1617 ieee80211_set_key_tx_seq(key
, &seq
);
1621 /* that's it for this key */
1625 if (data
->find_phase
) {
1626 data
->last_gtk
= key
;
1627 data
->cipher
= key
->cipher
;
1631 if (data
->status
->num_of_gtk_rekeys
)
1632 ieee80211_remove_key(key
);
1633 else if (data
->last_gtk
== key
)
1634 iwl_mvm_set_key_rx_seq(data
->mvm
, key
, data
->status
);
1637 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm
*mvm
,
1638 struct ieee80211_vif
*vif
,
1639 struct iwl_wowlan_status
*status
)
1641 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1642 struct iwl_mvm_d3_gtk_iter_data gtkdata
= {
1646 u32 disconnection_reasons
=
1647 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON
|
1648 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH
;
1650 if (!status
|| !vif
->bss_conf
.bssid
)
1653 if (le32_to_cpu(status
->wakeup_reasons
) & disconnection_reasons
)
1656 /* find last GTK that we used initially, if any */
1657 gtkdata
.find_phase
= true;
1658 ieee80211_iter_keys(mvm
->hw
, vif
,
1659 iwl_mvm_d3_update_keys
, >kdata
);
1660 /* not trying to keep connections with MFP/unhandled ciphers */
1661 if (gtkdata
.unhandled_cipher
)
1663 if (!gtkdata
.num_keys
)
1665 if (!gtkdata
.last_gtk
)
1669 * invalidate all other GTKs that might still exist and update
1670 * the one that we used
1672 gtkdata
.find_phase
= false;
1673 ieee80211_iter_keys(mvm
->hw
, vif
,
1674 iwl_mvm_d3_update_keys
, >kdata
);
1676 if (status
->num_of_gtk_rekeys
) {
1677 struct ieee80211_key_conf
*key
;
1679 struct ieee80211_key_conf conf
;
1682 .conf
.cipher
= gtkdata
.cipher
,
1683 .conf
.keyidx
= status
->gtk
.key_index
,
1686 switch (gtkdata
.cipher
) {
1687 case WLAN_CIPHER_SUITE_CCMP
:
1688 conf
.conf
.keylen
= WLAN_KEY_LEN_CCMP
;
1689 memcpy(conf
.conf
.key
, status
->gtk
.decrypt_key
,
1692 case WLAN_CIPHER_SUITE_TKIP
:
1693 conf
.conf
.keylen
= WLAN_KEY_LEN_TKIP
;
1694 memcpy(conf
.conf
.key
, status
->gtk
.decrypt_key
, 16);
1695 /* leave TX MIC key zeroed, we don't use it anyway */
1696 memcpy(conf
.conf
.key
+
1697 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
,
1698 status
->gtk
.tkip_mic_key
, 8);
1702 key
= ieee80211_gtk_rekey_add(vif
, &conf
.conf
);
1705 iwl_mvm_set_key_rx_seq(mvm
, key
, status
);
1708 if (status
->num_of_gtk_rekeys
) {
1710 cpu_to_be64(le64_to_cpu(status
->replay_ctr
));
1711 ieee80211_gtk_rekey_notify(vif
, vif
->bss_conf
.bssid
,
1712 (void *)&replay_ctr
, GFP_KERNEL
);
1716 mvmvif
->seqno_valid
= true;
1717 /* +0x10 because the set API expects next-to-use, not last-used */
1718 mvmvif
->seqno
= le16_to_cpu(status
->non_qos_seq_ctr
) + 0x10;
1723 static struct iwl_wowlan_status
*
1724 iwl_mvm_get_wakeup_status(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
1726 u32 base
= mvm
->error_event_table
;
1727 struct error_table_start
{
1728 /* cf. struct iwl_error_event_table */
1732 struct iwl_host_cmd cmd
= {
1733 .id
= WOWLAN_GET_STATUSES
,
1734 .flags
= CMD_WANT_SKB
,
1736 struct iwl_wowlan_status
*status
, *fw_status
;
1737 int ret
, len
, status_size
;
1739 iwl_trans_read_mem_bytes(mvm
->trans
, base
,
1740 &err_info
, sizeof(err_info
));
1742 if (err_info
.valid
) {
1743 IWL_INFO(mvm
, "error table is valid (%d) with error (%d)\n",
1744 err_info
.valid
, err_info
.error_id
);
1745 if (err_info
.error_id
== RF_KILL_INDICATOR_FOR_WOWLAN
) {
1746 struct cfg80211_wowlan_wakeup wakeup
= {
1747 .rfkill_release
= true,
1749 ieee80211_report_wowlan_wakeup(vif
, &wakeup
,
1752 return ERR_PTR(-EIO
);
1755 /* only for tracing for now */
1756 ret
= iwl_mvm_send_cmd_pdu(mvm
, OFFLOADS_QUERY_CMD
, 0, 0, NULL
);
1758 IWL_ERR(mvm
, "failed to query offload statistics (%d)\n", ret
);
1760 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
1762 IWL_ERR(mvm
, "failed to query status (%d)\n", ret
);
1763 return ERR_PTR(ret
);
1766 /* RF-kill already asserted again... */
1767 if (!cmd
.resp_pkt
) {
1768 fw_status
= ERR_PTR(-ERFKILL
);
1772 status_size
= sizeof(*fw_status
);
1774 len
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
1775 if (len
< status_size
) {
1776 IWL_ERR(mvm
, "Invalid WoWLAN status response!\n");
1777 fw_status
= ERR_PTR(-EIO
);
1781 status
= (void *)cmd
.resp_pkt
->data
;
1782 if (len
!= (status_size
+
1783 ALIGN(le32_to_cpu(status
->wake_packet_bufsize
), 4))) {
1784 IWL_ERR(mvm
, "Invalid WoWLAN status response!\n");
1785 fw_status
= ERR_PTR(-EIO
);
1789 fw_status
= kmemdup(status
, len
, GFP_KERNEL
);
1792 iwl_free_resp(&cmd
);
1796 /* releases the MVM mutex */
1797 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm
*mvm
,
1798 struct ieee80211_vif
*vif
)
1800 struct iwl_wowlan_status_data status
;
1801 struct iwl_wowlan_status
*fw_status
;
1804 struct ieee80211_sta
*ap_sta
;
1805 struct iwl_mvm_sta
*mvm_ap_sta
;
1807 fw_status
= iwl_mvm_get_wakeup_status(mvm
, vif
);
1808 if (IS_ERR_OR_NULL(fw_status
))
1811 status
.pattern_number
= le16_to_cpu(fw_status
->pattern_number
);
1812 for (i
= 0; i
< 8; i
++)
1813 status
.qos_seq_ctr
[i
] =
1814 le16_to_cpu(fw_status
->qos_seq_ctr
[i
]);
1815 status
.wakeup_reasons
= le32_to_cpu(fw_status
->wakeup_reasons
);
1816 status
.wake_packet_length
=
1817 le32_to_cpu(fw_status
->wake_packet_length
);
1818 status
.wake_packet_bufsize
=
1819 le32_to_cpu(fw_status
->wake_packet_bufsize
);
1820 status
.wake_packet
= fw_status
->wake_packet
;
1822 /* still at hard-coded place 0 for D3 image */
1823 ap_sta
= rcu_dereference_protected(
1824 mvm
->fw_id_to_mac_id
[0],
1825 lockdep_is_held(&mvm
->mutex
));
1826 if (IS_ERR_OR_NULL(ap_sta
))
1829 mvm_ap_sta
= iwl_mvm_sta_from_mac80211(ap_sta
);
1830 for (i
= 0; i
< IWL_MAX_TID_COUNT
; i
++) {
1831 u16 seq
= status
.qos_seq_ctr
[i
];
1832 /* firmware stores last-used value, we store next value */
1834 mvm_ap_sta
->tid_data
[i
].seq_number
= seq
;
1837 /* now we have all the data we need, unlock to avoid mac80211 issues */
1838 mutex_unlock(&mvm
->mutex
);
1840 iwl_mvm_report_wakeup_reasons(mvm
, vif
, &status
);
1842 keep
= iwl_mvm_setup_connection_keep(mvm
, vif
, fw_status
);
1850 mutex_unlock(&mvm
->mutex
);
1854 void iwl_mvm_d0i3_update_keys(struct iwl_mvm
*mvm
,
1855 struct ieee80211_vif
*vif
,
1856 struct iwl_wowlan_status
*status
)
1858 struct iwl_mvm_d3_gtk_iter_data gtkdata
= {
1864 * rekey handling requires taking locks that can't be taken now.
1865 * however, d0i3 doesn't offload rekey, so we're fine.
1867 if (WARN_ON_ONCE(status
->num_of_gtk_rekeys
))
1870 /* find last GTK that we used initially, if any */
1871 gtkdata
.find_phase
= true;
1872 iwl_mvm_iter_d0i3_ap_keys(mvm
, vif
, iwl_mvm_d3_update_keys
, >kdata
);
1874 gtkdata
.find_phase
= false;
1875 iwl_mvm_iter_d0i3_ap_keys(mvm
, vif
, iwl_mvm_d3_update_keys
, >kdata
);
1878 struct iwl_mvm_nd_query_results
{
1879 u32 matched_profiles
;
1880 struct iwl_scan_offload_profile_match matches
[IWL_SCAN_MAX_PROFILES
];
1884 iwl_mvm_netdetect_query_results(struct iwl_mvm
*mvm
,
1885 struct iwl_mvm_nd_query_results
*results
)
1887 struct iwl_scan_offload_profiles_query
*query
;
1888 struct iwl_host_cmd cmd
= {
1889 .id
= SCAN_OFFLOAD_PROFILES_QUERY_CMD
,
1890 .flags
= CMD_WANT_SKB
,
1894 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
1896 IWL_ERR(mvm
, "failed to query matched profiles (%d)\n", ret
);
1900 /* RF-kill already asserted again... */
1901 if (!cmd
.resp_pkt
) {
1906 len
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
1907 if (len
< sizeof(*query
)) {
1908 IWL_ERR(mvm
, "Invalid scan offload profiles query response!\n");
1913 query
= (void *)cmd
.resp_pkt
->data
;
1915 results
->matched_profiles
= le32_to_cpu(query
->matched_profiles
);
1916 memcpy(results
->matches
, query
->matches
, sizeof(results
->matches
));
1918 #ifdef CONFIG_IWLWIFI_DEBUGFS
1919 mvm
->last_netdetect_scans
= le32_to_cpu(query
->n_scans_done
);
1923 iwl_free_resp(&cmd
);
1927 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm
*mvm
,
1928 struct ieee80211_vif
*vif
)
1930 struct cfg80211_wowlan_nd_info
*net_detect
= NULL
;
1931 struct cfg80211_wowlan_wakeup wakeup
= {
1934 struct cfg80211_wowlan_wakeup
*wakeup_report
= &wakeup
;
1935 struct iwl_mvm_nd_query_results query
;
1936 struct iwl_wowlan_status
*fw_status
;
1937 unsigned long matched_profiles
;
1939 int i
, j
, n_matches
, ret
;
1941 fw_status
= iwl_mvm_get_wakeup_status(mvm
, vif
);
1942 if (!IS_ERR_OR_NULL(fw_status
)) {
1943 reasons
= le32_to_cpu(fw_status
->wakeup_reasons
);
1947 if (reasons
& IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED
)
1948 wakeup
.rfkill_release
= true;
1950 if (reasons
!= IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS
)
1953 ret
= iwl_mvm_netdetect_query_results(mvm
, &query
);
1954 if (ret
|| !query
.matched_profiles
) {
1955 wakeup_report
= NULL
;
1959 matched_profiles
= query
.matched_profiles
;
1960 if (mvm
->n_nd_match_sets
) {
1961 n_matches
= hweight_long(matched_profiles
);
1963 IWL_ERR(mvm
, "no net detect match information available\n");
1967 net_detect
= kzalloc(sizeof(*net_detect
) +
1968 (n_matches
* sizeof(net_detect
->matches
[0])),
1970 if (!net_detect
|| !n_matches
)
1973 for_each_set_bit(i
, &matched_profiles
, mvm
->n_nd_match_sets
) {
1974 struct iwl_scan_offload_profile_match
*fw_match
;
1975 struct cfg80211_wowlan_nd_match
*match
;
1976 int idx
, n_channels
= 0;
1978 fw_match
= &query
.matches
[i
];
1980 for (j
= 0; j
< SCAN_OFFLOAD_MATCHING_CHANNELS_LEN
; j
++)
1981 n_channels
+= hweight8(fw_match
->matching_channels
[j
]);
1983 match
= kzalloc(sizeof(*match
) +
1984 (n_channels
* sizeof(*match
->channels
)),
1989 net_detect
->matches
[net_detect
->n_matches
++] = match
;
1991 /* We inverted the order of the SSIDs in the scan
1992 * request, so invert the index here.
1994 idx
= mvm
->n_nd_match_sets
- i
- 1;
1995 match
->ssid
.ssid_len
= mvm
->nd_match_sets
[idx
].ssid
.ssid_len
;
1996 memcpy(match
->ssid
.ssid
, mvm
->nd_match_sets
[idx
].ssid
.ssid
,
1997 match
->ssid
.ssid_len
);
1999 if (mvm
->n_nd_channels
< n_channels
)
2002 for (j
= 0; j
< SCAN_OFFLOAD_MATCHING_CHANNELS_LEN
* 8; j
++)
2003 if (fw_match
->matching_channels
[j
/ 8] & (BIT(j
% 8)))
2004 match
->channels
[match
->n_channels
++] =
2005 mvm
->nd_channels
[j
]->center_freq
;
2009 wakeup
.net_detect
= net_detect
;
2011 iwl_mvm_free_nd(mvm
);
2013 mutex_unlock(&mvm
->mutex
);
2014 ieee80211_report_wowlan_wakeup(vif
, wakeup_report
, GFP_KERNEL
);
2017 for (i
= 0; i
< net_detect
->n_matches
; i
++)
2018 kfree(net_detect
->matches
[i
]);
2023 static void iwl_mvm_read_d3_sram(struct iwl_mvm
*mvm
)
2025 #ifdef CONFIG_IWLWIFI_DEBUGFS
2026 const struct fw_img
*img
= &mvm
->fw
->img
[IWL_UCODE_WOWLAN
];
2027 u32 len
= img
->sec
[IWL_UCODE_SECTION_DATA
].len
;
2028 u32 offs
= img
->sec
[IWL_UCODE_SECTION_DATA
].offset
;
2030 if (!mvm
->store_d3_resume_sram
)
2033 if (!mvm
->d3_resume_sram
) {
2034 mvm
->d3_resume_sram
= kzalloc(len
, GFP_KERNEL
);
2035 if (!mvm
->d3_resume_sram
)
2039 iwl_trans_read_mem_bytes(mvm
->trans
, offs
, mvm
->d3_resume_sram
, len
);
2043 static void iwl_mvm_d3_disconnect_iter(void *data
, u8
*mac
,
2044 struct ieee80211_vif
*vif
)
2046 /* skip the one we keep connection on */
2050 if (vif
->type
== NL80211_IFTYPE_STATION
)
2051 ieee80211_resume_disconnect(vif
);
2054 static int __iwl_mvm_resume(struct iwl_mvm
*mvm
, bool test
)
2056 struct ieee80211_vif
*vif
= NULL
;
2058 enum iwl_d3_status d3_status
;
2060 bool unified_image
= fw_has_capa(&mvm
->fw
->ucode_capa
,
2061 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG
);
2063 u32 flags
= CMD_ASYNC
| CMD_HIGH_PRIO
| CMD_SEND_IN_IDLE
|
2066 mutex_lock(&mvm
->mutex
);
2068 /* get the BSS vif pointer again */
2069 vif
= iwl_mvm_get_bss_vif(mvm
);
2070 if (IS_ERR_OR_NULL(vif
))
2073 ret
= iwl_trans_d3_resume(mvm
->trans
, &d3_status
, test
, !unified_image
);
2077 if (d3_status
!= IWL_D3_STATUS_ALIVE
) {
2078 IWL_INFO(mvm
, "Device was reset during suspend\n");
2082 /* query SRAM first in case we want event logging */
2083 iwl_mvm_read_d3_sram(mvm
);
2086 * Query the current location and source from the D3 firmware so we
2087 * can play it back when we re-intiailize the D0 firmware
2089 iwl_mvm_update_changed_regdom(mvm
);
2091 if (mvm
->net_detect
) {
2092 iwl_mvm_query_netdetect_reasons(mvm
, vif
);
2093 /* has unlocked the mutex, so skip that */
2096 keep
= iwl_mvm_query_wakeup_reasons(mvm
, vif
);
2097 #ifdef CONFIG_IWLWIFI_DEBUGFS
2099 mvm
->keep_vif
= vif
;
2101 /* has unlocked the mutex, so skip that */
2106 iwl_mvm_free_nd(mvm
);
2107 mutex_unlock(&mvm
->mutex
);
2111 ieee80211_iterate_active_interfaces_rtnl(mvm
->hw
,
2112 IEEE80211_IFACE_ITER_NORMAL
,
2113 iwl_mvm_d3_disconnect_iter
, keep
? vif
: NULL
);
2116 if (unified_image
&& !ret
) {
2117 ret
= iwl_mvm_send_cmd_pdu(mvm
, D0I3_END_CMD
, flags
, 0, NULL
);
2118 if (!ret
) /* D3 ended successfully - no need to reset device */
2123 * Reconfigure the device in one of the following cases:
2124 * 1. We are not using a unified image
2125 * 2. We are using a unified image but had an error while exiting D3
2127 set_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
2128 set_bit(IWL_MVM_STATUS_D3_RECONFIG
, &mvm
->status
);
2130 * When switching images we return 1, which causes mac80211
2131 * to do a reconfig with IEEE80211_RECONFIG_TYPE_RESTART.
2132 * This type of reconfig calls iwl_mvm_restart_complete(),
2133 * where we unref the IWL_MVM_REF_UCODE_DOWN, so we need
2134 * to take the reference here.
2136 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
2141 static int iwl_mvm_resume_d3(struct iwl_mvm
*mvm
)
2143 iwl_trans_resume(mvm
->trans
);
2145 return __iwl_mvm_resume(mvm
, false);
2148 static int iwl_mvm_resume_d0i3(struct iwl_mvm
*mvm
)
2151 enum iwl_d3_status d3_status
;
2152 struct iwl_trans
*trans
= mvm
->trans
;
2154 iwl_trans_d3_resume(trans
, &d3_status
, false, false);
2157 * make sure to clear D0I3_DEFER_WAKEUP before
2158 * calling iwl_trans_resume(), which might wait
2159 * for d0i3 exit completion.
2161 mutex_lock(&mvm
->d0i3_suspend_mutex
);
2162 __clear_bit(D0I3_DEFER_WAKEUP
, &mvm
->d0i3_suspend_flags
);
2163 exit_now
= __test_and_clear_bit(D0I3_PENDING_WAKEUP
,
2164 &mvm
->d0i3_suspend_flags
);
2165 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
2167 IWL_DEBUG_RPM(mvm
, "Run deferred d0i3 exit\n");
2168 _iwl_mvm_exit_d0i3(mvm
);
2171 iwl_trans_resume(trans
);
2173 if (iwl_mvm_enter_d0i3_on_suspend(mvm
)) {
2174 int ret
= iwl_mvm_exit_d0i3(mvm
->hw
->priv
);
2179 * d0i3 exit will be deferred until reconfig_complete.
2180 * make sure there we are out of d0i3.
2186 int iwl_mvm_resume(struct ieee80211_hw
*hw
)
2188 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2191 if (mvm
->trans
->system_pm_mode
== IWL_PLAT_PM_MODE_D0I3
)
2192 ret
= iwl_mvm_resume_d0i3(mvm
);
2194 ret
= iwl_mvm_resume_d3(mvm
);
2196 mvm
->trans
->system_pm_mode
= IWL_PLAT_PM_MODE_DISABLED
;
2201 void iwl_mvm_set_wakeup(struct ieee80211_hw
*hw
, bool enabled
)
2203 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2205 device_set_wakeup_enable(mvm
->trans
->dev
, enabled
);
2208 #ifdef CONFIG_IWLWIFI_DEBUGFS
2209 static int iwl_mvm_d3_test_open(struct inode
*inode
, struct file
*file
)
2211 struct iwl_mvm
*mvm
= inode
->i_private
;
2214 if (mvm
->d3_test_active
)
2217 file
->private_data
= inode
->i_private
;
2219 ieee80211_stop_queues(mvm
->hw
);
2222 mvm
->trans
->system_pm_mode
= IWL_PLAT_PM_MODE_D3
;
2224 /* start pseudo D3 */
2226 err
= __iwl_mvm_suspend(mvm
->hw
, mvm
->hw
->wiphy
->wowlan_config
, true);
2231 ieee80211_wake_queues(mvm
->hw
);
2234 mvm
->d3_test_active
= true;
2235 mvm
->keep_vif
= NULL
;
2239 static ssize_t
iwl_mvm_d3_test_read(struct file
*file
, char __user
*user_buf
,
2240 size_t count
, loff_t
*ppos
)
2242 struct iwl_mvm
*mvm
= file
->private_data
;
2246 /* read pme_ptr if available */
2247 if (mvm
->d3_test_pme_ptr
) {
2248 pme_asserted
= iwl_trans_read_mem32(mvm
->trans
,
2249 mvm
->d3_test_pme_ptr
);
2254 if (msleep_interruptible(100))
2261 static void iwl_mvm_d3_test_disconn_work_iter(void *_data
, u8
*mac
,
2262 struct ieee80211_vif
*vif
)
2264 /* skip the one we keep connection on */
2268 if (vif
->type
== NL80211_IFTYPE_STATION
)
2269 ieee80211_connection_loss(vif
);
2272 static int iwl_mvm_d3_test_release(struct inode
*inode
, struct file
*file
)
2274 struct iwl_mvm
*mvm
= inode
->i_private
;
2275 int remaining_time
= 10;
2277 mvm
->d3_test_active
= false;
2280 __iwl_mvm_resume(mvm
, true);
2283 mvm
->trans
->system_pm_mode
= IWL_PLAT_PM_MODE_DISABLED
;
2285 iwl_abort_notification_waits(&mvm
->notif_wait
);
2286 ieee80211_restart_hw(mvm
->hw
);
2288 /* wait for restart and disconnect all interfaces */
2289 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2290 remaining_time
> 0) {
2295 if (remaining_time
== 0)
2296 IWL_ERR(mvm
, "Timed out waiting for HW restart to finish!\n");
2298 ieee80211_iterate_active_interfaces_atomic(
2299 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
2300 iwl_mvm_d3_test_disconn_work_iter
, mvm
->keep_vif
);
2302 ieee80211_wake_queues(mvm
->hw
);
2307 const struct file_operations iwl_dbgfs_d3_test_ops
= {
2308 .llseek
= no_llseek
,
2309 .open
= iwl_mvm_d3_test_open
,
2310 .read
= iwl_mvm_d3_test_read
,
2311 .release
= iwl_mvm_d3_test_release
,