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 - 2017 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 - 2017 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
.swcrypto
)
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
:
256 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.unicast_rsc
;
257 tkip_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.tkip
.tsc
;
259 rx_p1ks
= data
->tkip
->rx_uni
;
261 pn64
= atomic64_read(&key
->tx_pn
);
262 tkip_tx_sc
->iv16
= cpu_to_le16(TKIP_PN_TO_IV16(pn64
));
263 tkip_tx_sc
->iv32
= cpu_to_le32(TKIP_PN_TO_IV32(pn64
));
265 ieee80211_get_tkip_p1k_iv(key
, TKIP_PN_TO_IV32(pn64
),
267 iwl_mvm_convert_p1k(p1k
, data
->tkip
->tx
.p1k
);
269 memcpy(data
->tkip
->mic_keys
.tx
,
270 &key
->key
[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY
],
273 rx_mic_key
= data
->tkip
->mic_keys
.rx_unicast
;
276 data
->rsc_tsc
->all_tsc_rsc
.tkip
.multicast_rsc
;
277 rx_p1ks
= data
->tkip
->rx_multi
;
278 rx_mic_key
= data
->tkip
->mic_keys
.rx_mcast
;
282 * For non-QoS this relies on the fact that both the uCode and
283 * mac80211 use TID 0 (as they need to to avoid replay attacks)
284 * for checking the IV in the frames.
286 for (i
= 0; i
< IWL_NUM_RSC
; i
++) {
287 ieee80211_get_key_rx_seq(key
, i
, &seq
);
288 tkip_sc
[i
].iv16
= cpu_to_le16(seq
.tkip
.iv16
);
289 tkip_sc
[i
].iv32
= cpu_to_le32(seq
.tkip
.iv32
);
290 /* wrapping isn't allowed, AP must rekey */
291 if (seq
.tkip
.iv32
> cur_rx_iv32
)
292 cur_rx_iv32
= seq
.tkip
.iv32
;
295 ieee80211_get_tkip_rx_p1k(key
, vif
->bss_conf
.bssid
,
297 iwl_mvm_convert_p1k(p1k
, rx_p1ks
[0].p1k
);
298 ieee80211_get_tkip_rx_p1k(key
, vif
->bss_conf
.bssid
,
299 cur_rx_iv32
+ 1, p1k
);
300 iwl_mvm_convert_p1k(p1k
, rx_p1ks
[1].p1k
);
303 &key
->key
[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
],
306 data
->use_tkip
= true;
307 data
->use_rsc_tsc
= true;
309 case WLAN_CIPHER_SUITE_CCMP
:
313 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.unicast_rsc
;
314 aes_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.aes
.tsc
;
316 pn64
= atomic64_read(&key
->tx_pn
);
317 aes_tx_sc
->pn
= cpu_to_le64(pn64
);
319 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.multicast_rsc
;
323 * For non-QoS this relies on the fact that both the uCode and
324 * mac80211/our RX code use TID 0 for checking the PN.
326 if (sta
&& iwl_mvm_has_new_rx_api(mvm
)) {
327 struct iwl_mvm_sta
*mvmsta
;
328 struct iwl_mvm_key_pn
*ptk_pn
;
331 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
332 ptk_pn
= rcu_dereference_protected(
333 mvmsta
->ptk_pn
[key
->keyidx
],
334 lockdep_is_held(&mvm
->mutex
));
335 if (WARN_ON(!ptk_pn
))
338 for (i
= 0; i
< IWL_MAX_TID_COUNT
; i
++) {
339 pn
= iwl_mvm_find_max_pn(key
, ptk_pn
, &seq
, i
,
340 mvm
->trans
->num_rx_queues
);
341 aes_sc
[i
].pn
= cpu_to_le64((u64
)pn
[5] |
349 for (i
= 0; i
< IWL_NUM_RSC
; i
++) {
350 u8
*pn
= seq
.ccmp
.pn
;
352 ieee80211_get_key_rx_seq(key
, i
, &seq
);
353 aes_sc
[i
].pn
= cpu_to_le64((u64
)pn
[5] |
361 data
->use_rsc_tsc
= true;
365 if (data
->configure_keys
) {
366 mutex_lock(&mvm
->mutex
);
368 * The D3 firmware hardcodes the key offset 0 as the key it
369 * uses to transmit packets to the AP, i.e. the PTK.
371 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
) {
372 mvm
->ptk_ivlen
= key
->iv_len
;
373 mvm
->ptk_icvlen
= key
->icv_len
;
374 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, 0);
377 * firmware only supports TSC/RSC for a single key,
378 * so if there are multiple keep overwriting them
379 * with new ones -- this relies on mac80211 doing
382 mvm
->gtk_ivlen
= key
->iv_len
;
383 mvm
->gtk_icvlen
= key
->icv_len
;
384 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, 1);
386 mutex_unlock(&mvm
->mutex
);
387 data
->error
= ret
!= 0;
391 static int iwl_mvm_send_patterns(struct iwl_mvm
*mvm
,
392 struct cfg80211_wowlan
*wowlan
)
394 struct iwl_wowlan_patterns_cmd
*pattern_cmd
;
395 struct iwl_host_cmd cmd
= {
396 .id
= WOWLAN_PATTERNS
,
397 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
401 if (!wowlan
->n_patterns
)
404 cmd
.len
[0] = sizeof(*pattern_cmd
) +
405 wowlan
->n_patterns
* sizeof(struct iwl_wowlan_pattern
);
407 pattern_cmd
= kmalloc(cmd
.len
[0], GFP_KERNEL
);
411 pattern_cmd
->n_patterns
= cpu_to_le32(wowlan
->n_patterns
);
413 for (i
= 0; i
< wowlan
->n_patterns
; i
++) {
414 int mask_len
= DIV_ROUND_UP(wowlan
->patterns
[i
].pattern_len
, 8);
416 memcpy(&pattern_cmd
->patterns
[i
].mask
,
417 wowlan
->patterns
[i
].mask
, mask_len
);
418 memcpy(&pattern_cmd
->patterns
[i
].pattern
,
419 wowlan
->patterns
[i
].pattern
,
420 wowlan
->patterns
[i
].pattern_len
);
421 pattern_cmd
->patterns
[i
].mask_size
= mask_len
;
422 pattern_cmd
->patterns
[i
].pattern_size
=
423 wowlan
->patterns
[i
].pattern_len
;
426 cmd
.data
[0] = pattern_cmd
;
427 err
= iwl_mvm_send_cmd(mvm
, &cmd
);
432 enum iwl_mvm_tcp_packet_type
{
441 static __le16
pseudo_hdr_check(int len
, __be32 saddr
, __be32 daddr
)
443 __sum16 check
= tcp_v4_check(len
, saddr
, daddr
, 0);
444 return cpu_to_le16(be16_to_cpu((__force __be16
)check
));
447 static void iwl_mvm_build_tcp_packet(struct ieee80211_vif
*vif
,
448 struct cfg80211_wowlan_tcp
*tcp
,
449 void *_pkt
, u8
*mask
,
450 __le16
*pseudo_hdr_csum
,
451 enum iwl_mvm_tcp_packet_type ptype
)
458 } __packed
*pkt
= _pkt
;
459 u16 ip_tot_len
= sizeof(struct iphdr
) + sizeof(struct tcphdr
);
462 pkt
->eth
.h_proto
= cpu_to_be16(ETH_P_IP
),
465 pkt
->ip
.protocol
= IPPROTO_TCP
;
469 case MVM_TCP_TX_DATA
:
471 memcpy(pkt
->eth
.h_dest
, tcp
->dst_mac
, ETH_ALEN
);
472 memcpy(pkt
->eth
.h_source
, vif
->addr
, ETH_ALEN
);
474 pkt
->ip
.saddr
= tcp
->src
;
475 pkt
->ip
.daddr
= tcp
->dst
;
476 pkt
->tcp
.source
= cpu_to_be16(tcp
->src_port
);
477 pkt
->tcp
.dest
= cpu_to_be16(tcp
->dst_port
);
478 /* overwritten for TX SYN later */
479 pkt
->tcp
.doff
= sizeof(struct tcphdr
) / 4;
480 pkt
->tcp
.window
= cpu_to_be16(65000);
482 case MVM_TCP_RX_SYNACK
:
484 case MVM_TCP_RX_WAKE
:
485 memcpy(pkt
->eth
.h_dest
, vif
->addr
, ETH_ALEN
);
486 memcpy(pkt
->eth
.h_source
, tcp
->dst_mac
, ETH_ALEN
);
487 pkt
->ip
.saddr
= tcp
->dst
;
488 pkt
->ip
.daddr
= tcp
->src
;
489 pkt
->tcp
.source
= cpu_to_be16(tcp
->dst_port
);
490 pkt
->tcp
.dest
= cpu_to_be16(tcp
->src_port
);
499 /* firmware assumes 8 option bytes - 8 NOPs for now */
500 memset(pkt
->data
, 0x01, 8);
502 pkt
->tcp
.doff
= (sizeof(struct tcphdr
) + 8) / 4;
505 case MVM_TCP_TX_DATA
:
506 ip_tot_len
+= tcp
->payload_len
;
507 memcpy(pkt
->data
, tcp
->payload
, tcp
->payload_len
);
515 case MVM_TCP_RX_SYNACK
:
522 case MVM_TCP_RX_WAKE
:
523 ip_tot_len
+= tcp
->wake_len
;
526 memcpy(pkt
->data
, tcp
->wake_data
, tcp
->wake_len
);
532 case MVM_TCP_TX_DATA
:
534 pkt
->ip
.tot_len
= cpu_to_be16(ip_tot_len
);
535 pkt
->ip
.check
= ip_fast_csum(&pkt
->ip
, pkt
->ip
.ihl
);
537 case MVM_TCP_RX_WAKE
:
538 for (i
= 0; i
< DIV_ROUND_UP(tcp
->wake_len
, 8); i
++) {
539 u8 tmp
= tcp
->wake_mask
[i
];
540 mask
[i
+ 6] |= tmp
<< 6;
541 if (i
+ 1 < DIV_ROUND_UP(tcp
->wake_len
, 8))
542 mask
[i
+ 7] = tmp
>> 2;
544 /* fall through for ethernet/IP/TCP headers mask */
545 case MVM_TCP_RX_SYNACK
:
547 mask
[0] = 0xff; /* match ethernet */
549 * match ethernet, ip.version, ip.ihl
550 * the ip.ihl half byte is really masked out by firmware
553 mask
[2] = 0x80; /* match ip.protocol */
554 mask
[3] = 0xfc; /* match ip.saddr, ip.daddr */
555 mask
[4] = 0x3f; /* match ip.daddr, tcp.source, tcp.dest */
556 mask
[5] = 0x80; /* match tcp flags */
557 /* leave rest (0 or set for MVM_TCP_RX_WAKE) */
561 *pseudo_hdr_csum
= pseudo_hdr_check(ip_tot_len
- sizeof(struct iphdr
),
562 pkt
->ip
.saddr
, pkt
->ip
.daddr
);
565 static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm
*mvm
,
566 struct ieee80211_vif
*vif
,
567 struct cfg80211_wowlan_tcp
*tcp
)
569 struct iwl_wowlan_remote_wake_config
*cfg
;
570 struct iwl_host_cmd cmd
= {
571 .id
= REMOTE_WAKE_CONFIG_CMD
,
572 .len
= { sizeof(*cfg
), },
573 .dataflags
= { IWL_HCMD_DFL_NOCOPY
, },
580 cfg
= kzalloc(sizeof(*cfg
), GFP_KERNEL
);
585 cfg
->max_syn_retries
= 10;
586 cfg
->max_data_retries
= 10;
587 cfg
->tcp_syn_ack_timeout
= 1; /* seconds */
588 cfg
->tcp_ack_timeout
= 1; /* seconds */
591 iwl_mvm_build_tcp_packet(
592 vif
, tcp
, cfg
->syn_tx
.data
, NULL
,
593 &cfg
->syn_tx
.info
.tcp_pseudo_header_checksum
,
595 cfg
->syn_tx
.info
.tcp_payload_length
= 0;
598 iwl_mvm_build_tcp_packet(
599 vif
, tcp
, cfg
->synack_rx
.data
, cfg
->synack_rx
.rx_mask
,
600 &cfg
->synack_rx
.info
.tcp_pseudo_header_checksum
,
602 cfg
->synack_rx
.info
.tcp_payload_length
= 0;
604 /* KEEPALIVE/ACK (TX) */
605 iwl_mvm_build_tcp_packet(
606 vif
, tcp
, cfg
->keepalive_tx
.data
, NULL
,
607 &cfg
->keepalive_tx
.info
.tcp_pseudo_header_checksum
,
609 cfg
->keepalive_tx
.info
.tcp_payload_length
=
610 cpu_to_le16(tcp
->payload_len
);
611 cfg
->sequence_number_offset
= tcp
->payload_seq
.offset
;
612 /* length must be 0..4, the field is little endian */
613 cfg
->sequence_number_length
= tcp
->payload_seq
.len
;
614 cfg
->initial_sequence_number
= cpu_to_le32(tcp
->payload_seq
.start
);
615 cfg
->keepalive_interval
= cpu_to_le16(tcp
->data_interval
);
616 if (tcp
->payload_tok
.len
) {
617 cfg
->token_offset
= tcp
->payload_tok
.offset
;
618 cfg
->token_length
= tcp
->payload_tok
.len
;
620 cpu_to_le16(tcp
->tokens_size
% tcp
->payload_tok
.len
);
621 memcpy(cfg
->tokens
, tcp
->payload_tok
.token_stream
,
624 /* set tokens to max value to almost never run out */
625 cfg
->num_tokens
= cpu_to_le16(65535);
629 iwl_mvm_build_tcp_packet(
630 vif
, tcp
, cfg
->keepalive_ack_rx
.data
,
631 cfg
->keepalive_ack_rx
.rx_mask
,
632 &cfg
->keepalive_ack_rx
.info
.tcp_pseudo_header_checksum
,
634 cfg
->keepalive_ack_rx
.info
.tcp_payload_length
= 0;
637 iwl_mvm_build_tcp_packet(
638 vif
, tcp
, cfg
->wake_rx
.data
, cfg
->wake_rx
.rx_mask
,
639 &cfg
->wake_rx
.info
.tcp_pseudo_header_checksum
,
641 cfg
->wake_rx
.info
.tcp_payload_length
=
642 cpu_to_le16(tcp
->wake_len
);
645 iwl_mvm_build_tcp_packet(
646 vif
, tcp
, cfg
->fin_tx
.data
, NULL
,
647 &cfg
->fin_tx
.info
.tcp_pseudo_header_checksum
,
649 cfg
->fin_tx
.info
.tcp_payload_length
= 0;
651 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
657 static int iwl_mvm_d3_reprogram(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
658 struct ieee80211_sta
*ap_sta
)
660 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
661 struct ieee80211_chanctx_conf
*ctx
;
662 u8 chains_static
, chains_dynamic
;
663 struct cfg80211_chan_def chandef
;
665 struct iwl_binding_cmd binding_cmd
= {};
666 struct iwl_time_quota_cmd quota_cmd
= {};
670 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
671 IWL_UCODE_TLV_CAPA_BINDING_CDB_SUPPORT
)) {
672 size
= sizeof(binding_cmd
);
673 if (mvmvif
->phy_ctxt
->channel
->band
== NL80211_BAND_2GHZ
||
674 !iwl_mvm_is_cdb_supported(mvm
))
675 binding_cmd
.lmac_id
= cpu_to_le32(IWL_LMAC_24G_INDEX
);
677 binding_cmd
.lmac_id
= cpu_to_le32(IWL_LMAC_5G_INDEX
);
679 size
= IWL_BINDING_CMD_SIZE_V1
;
682 /* add back the PHY */
683 if (WARN_ON(!mvmvif
->phy_ctxt
))
687 ctx
= rcu_dereference(vif
->chanctx_conf
);
693 chains_static
= ctx
->rx_chains_static
;
694 chains_dynamic
= ctx
->rx_chains_dynamic
;
697 ret
= iwl_mvm_phy_ctxt_add(mvm
, mvmvif
->phy_ctxt
, &chandef
,
698 chains_static
, chains_dynamic
);
702 /* add back the MAC */
703 mvmvif
->uploaded
= false;
705 if (WARN_ON(!vif
->bss_conf
.assoc
))
708 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
712 /* add back binding - XXX refactor? */
713 binding_cmd
.id_and_color
=
714 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
715 mvmvif
->phy_ctxt
->color
));
716 binding_cmd
.action
= cpu_to_le32(FW_CTXT_ACTION_ADD
);
718 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
719 mvmvif
->phy_ctxt
->color
));
720 binding_cmd
.macs
[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
722 for (i
= 1; i
< MAX_MACS_IN_BINDING
; i
++)
723 binding_cmd
.macs
[i
] = cpu_to_le32(FW_CTXT_INVALID
);
726 ret
= iwl_mvm_send_cmd_pdu_status(mvm
, BINDING_CONTEXT_CMD
,
727 size
, &binding_cmd
, &status
);
729 IWL_ERR(mvm
, "Failed to add binding: %d\n", ret
);
734 IWL_ERR(mvm
, "Binding command failed: %u\n", status
);
738 ret
= iwl_mvm_sta_send_to_fw(mvm
, ap_sta
, false, 0);
741 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvmvif
->ap_sta_id
], ap_sta
);
743 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
748 quota_cmd
.quotas
[0].id_and_color
=
749 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
750 mvmvif
->phy_ctxt
->color
));
751 quota_cmd
.quotas
[0].quota
= cpu_to_le32(IWL_MVM_MAX_QUOTA
);
752 quota_cmd
.quotas
[0].max_duration
= cpu_to_le32(IWL_MVM_MAX_QUOTA
);
754 for (i
= 1; i
< MAX_BINDINGS
; i
++)
755 quota_cmd
.quotas
[i
].id_and_color
= cpu_to_le32(FW_CTXT_INVALID
);
757 ret
= iwl_mvm_send_cmd_pdu(mvm
, TIME_QUOTA_CMD
, 0,
758 sizeof(quota_cmd
), "a_cmd
);
760 IWL_ERR(mvm
, "Failed to send quota: %d\n", ret
);
762 if (iwl_mvm_is_lar_supported(mvm
) && iwl_mvm_init_fw_regd(mvm
))
763 IWL_ERR(mvm
, "Failed to initialize D3 LAR information\n");
768 static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm
*mvm
,
769 struct ieee80211_vif
*vif
)
771 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
772 struct iwl_nonqos_seq_query_cmd query_cmd
= {
773 .get_set_flag
= cpu_to_le32(IWL_NONQOS_SEQ_GET
),
775 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
778 struct iwl_host_cmd cmd
= {
779 .id
= NON_QOS_TX_COUNTER_CMD
,
780 .flags
= CMD_WANT_SKB
,
785 cmd
.data
[0] = &query_cmd
;
786 cmd
.len
[0] = sizeof(query_cmd
);
788 err
= iwl_mvm_send_cmd(mvm
, &cmd
);
792 size
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
793 if (size
< sizeof(__le16
)) {
796 err
= le16_to_cpup((__le16
*)cmd
.resp_pkt
->data
);
797 /* firmware returns next, not last-used seqno */
798 err
= (u16
) (err
- 0x10);
805 void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
807 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
808 struct iwl_nonqos_seq_query_cmd query_cmd
= {
809 .get_set_flag
= cpu_to_le32(IWL_NONQOS_SEQ_SET
),
811 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
813 .value
= cpu_to_le16(mvmvif
->seqno
),
816 /* return if called during restart, not resume from D3 */
817 if (!mvmvif
->seqno_valid
)
820 mvmvif
->seqno_valid
= false;
822 if (iwl_mvm_send_cmd_pdu(mvm
, NON_QOS_TX_COUNTER_CMD
, 0,
823 sizeof(query_cmd
), &query_cmd
))
824 IWL_ERR(mvm
, "failed to set non-QoS seqno\n");
827 static int iwl_mvm_switch_to_d3(struct iwl_mvm
*mvm
)
829 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_REGULAR
, true);
831 iwl_mvm_stop_device(mvm
);
833 * Set the HW restart bit -- this is mostly true as we're
834 * going to load new firmware and reprogram that, though
835 * the reprogramming is going to be manual to avoid adding
836 * all the MACs that aren't support.
837 * We don't have to clear up everything though because the
838 * reprogramming is manual. When we resume, we'll actually
839 * go through a proper restart sequence again to switch
840 * back to the runtime firmware image.
842 set_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
844 /* the fw is reset, so all the keys are cleared */
845 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
852 return iwl_mvm_load_d3_fw(mvm
);
856 iwl_mvm_get_wowlan_config(struct iwl_mvm
*mvm
,
857 struct cfg80211_wowlan
*wowlan
,
858 struct iwl_wowlan_config_cmd
*wowlan_config_cmd
,
859 struct ieee80211_vif
*vif
, struct iwl_mvm_vif
*mvmvif
,
860 struct ieee80211_sta
*ap_sta
)
863 struct iwl_mvm_sta
*mvm_ap_sta
= iwl_mvm_sta_from_mac80211(ap_sta
);
865 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
867 wowlan_config_cmd
->is_11n_connection
=
868 ap_sta
->ht_cap
.ht_supported
;
869 wowlan_config_cmd
->flags
= ENABLE_L3_FILTERING
|
870 ENABLE_NBNS_FILTERING
| ENABLE_DHCP_FILTERING
;
872 /* Query the last used seqno and set it */
873 ret
= iwl_mvm_get_last_nonqos_seq(mvm
, vif
);
877 wowlan_config_cmd
->non_qos_seq
= cpu_to_le16(ret
);
879 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta
, wowlan_config_cmd
);
881 if (wowlan
->disconnect
)
882 wowlan_config_cmd
->wakeup_filter
|=
883 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS
|
884 IWL_WOWLAN_WAKEUP_LINK_CHANGE
);
885 if (wowlan
->magic_pkt
)
886 wowlan_config_cmd
->wakeup_filter
|=
887 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET
);
888 if (wowlan
->gtk_rekey_failure
)
889 wowlan_config_cmd
->wakeup_filter
|=
890 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL
);
891 if (wowlan
->eap_identity_req
)
892 wowlan_config_cmd
->wakeup_filter
|=
893 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ
);
894 if (wowlan
->four_way_handshake
)
895 wowlan_config_cmd
->wakeup_filter
|=
896 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE
);
897 if (wowlan
->n_patterns
)
898 wowlan_config_cmd
->wakeup_filter
|=
899 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH
);
901 if (wowlan
->rfkill_release
)
902 wowlan_config_cmd
->wakeup_filter
|=
903 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT
);
907 * Set the "link change" (really "link lost") flag as well
908 * since that implies losing the TCP connection.
910 wowlan_config_cmd
->wakeup_filter
|=
911 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS
|
912 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE
|
913 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET
|
914 IWL_WOWLAN_WAKEUP_LINK_CHANGE
);
921 iwl_mvm_iter_d0i3_ap_keys(struct iwl_mvm
*mvm
,
922 struct ieee80211_vif
*vif
,
923 void (*iter
)(struct ieee80211_hw
*hw
,
924 struct ieee80211_vif
*vif
,
925 struct ieee80211_sta
*sta
,
926 struct ieee80211_key_conf
*key
,
930 struct ieee80211_sta
*ap_sta
;
934 ap_sta
= rcu_dereference(mvm
->fw_id_to_mac_id
[mvm
->d0i3_ap_sta_id
]);
935 if (IS_ERR_OR_NULL(ap_sta
))
938 ieee80211_iter_keys_rcu(mvm
->hw
, vif
, iter
, data
);
943 int iwl_mvm_wowlan_config_key_params(struct iwl_mvm
*mvm
,
944 struct ieee80211_vif
*vif
,
948 struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd
= {};
949 struct iwl_wowlan_tkip_params_cmd tkip_cmd
= {};
950 struct wowlan_key_data key_data
= {
951 .configure_keys
= !d0i3
,
952 .use_rsc_tsc
= false,
956 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
959 key_data
.rsc_tsc
= kzalloc(sizeof(*key_data
.rsc_tsc
), GFP_KERNEL
);
960 if (!key_data
.rsc_tsc
)
964 * if we have to configure keys, call ieee80211_iter_keys(),
965 * as we need non-atomic context in order to take the
967 * for the d0i3 we can't use ieee80211_iter_keys(), as
968 * taking (almost) any mutex might result in deadlock.
972 * Note that currently we don't propagate cmd_flags
973 * to the iterator. In case of key_data.configure_keys,
974 * all the configured commands are SYNC, and
975 * iwl_mvm_wowlan_program_keys() will take care of
976 * locking/unlocking mvm->mutex.
978 ieee80211_iter_keys(mvm
->hw
, vif
,
979 iwl_mvm_wowlan_program_keys
,
982 iwl_mvm_iter_d0i3_ap_keys(mvm
, vif
,
983 iwl_mvm_wowlan_program_keys
,
987 if (key_data
.error
) {
992 if (key_data
.use_rsc_tsc
) {
993 ret
= iwl_mvm_send_cmd_pdu(mvm
,
994 WOWLAN_TSC_RSC_PARAM
, cmd_flags
,
995 sizeof(*key_data
.rsc_tsc
),
1001 if (key_data
.use_tkip
&&
1002 !fw_has_api(&mvm
->fw
->ucode_capa
,
1003 IWL_UCODE_TLV_API_TKIP_MIC_KEYS
)) {
1004 ret
= iwl_mvm_send_cmd_pdu(mvm
,
1006 cmd_flags
, sizeof(tkip_cmd
),
1012 /* configure rekey data only if offloaded rekey is supported (d3) */
1013 if (mvmvif
->rekey_data
.valid
&& !d0i3
) {
1014 memset(&kek_kck_cmd
, 0, sizeof(kek_kck_cmd
));
1015 memcpy(kek_kck_cmd
.kck
, mvmvif
->rekey_data
.kck
,
1017 kek_kck_cmd
.kck_len
= cpu_to_le16(NL80211_KCK_LEN
);
1018 memcpy(kek_kck_cmd
.kek
, mvmvif
->rekey_data
.kek
,
1020 kek_kck_cmd
.kek_len
= cpu_to_le16(NL80211_KEK_LEN
);
1021 kek_kck_cmd
.replay_ctr
= mvmvif
->rekey_data
.replay_ctr
;
1023 ret
= iwl_mvm_send_cmd_pdu(mvm
,
1024 WOWLAN_KEK_KCK_MATERIAL
, cmd_flags
,
1025 sizeof(kek_kck_cmd
),
1032 kfree(key_data
.rsc_tsc
);
1037 iwl_mvm_wowlan_config(struct iwl_mvm
*mvm
,
1038 struct cfg80211_wowlan
*wowlan
,
1039 struct iwl_wowlan_config_cmd
*wowlan_config_cmd
,
1040 struct ieee80211_vif
*vif
, struct iwl_mvm_vif
*mvmvif
,
1041 struct ieee80211_sta
*ap_sta
)
1044 bool unified_image
= fw_has_capa(&mvm
->fw
->ucode_capa
,
1045 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG
);
1047 if (!unified_image
) {
1048 ret
= iwl_mvm_switch_to_d3(mvm
);
1052 ret
= iwl_mvm_d3_reprogram(mvm
, vif
, ap_sta
);
1057 if (!iwlwifi_mod_params
.swcrypto
) {
1059 * This needs to be unlocked due to lock ordering
1060 * constraints. Since we're in the suspend path
1061 * that isn't really a problem though.
1063 mutex_unlock(&mvm
->mutex
);
1064 ret
= iwl_mvm_wowlan_config_key_params(mvm
, vif
, false,
1066 mutex_lock(&mvm
->mutex
);
1071 ret
= iwl_mvm_send_cmd_pdu(mvm
, WOWLAN_CONFIGURATION
, 0,
1072 sizeof(*wowlan_config_cmd
),
1077 ret
= iwl_mvm_send_patterns(mvm
, wowlan
);
1081 ret
= iwl_mvm_send_proto_offload(mvm
, vif
, false, true, 0);
1085 ret
= iwl_mvm_send_remote_wake_cfg(mvm
, vif
, wowlan
->tcp
);
1090 iwl_mvm_netdetect_config(struct iwl_mvm
*mvm
,
1091 struct cfg80211_wowlan
*wowlan
,
1092 struct cfg80211_sched_scan_request
*nd_config
,
1093 struct ieee80211_vif
*vif
)
1095 struct iwl_wowlan_config_cmd wowlan_config_cmd
= {};
1097 bool unified_image
= fw_has_capa(&mvm
->fw
->ucode_capa
,
1098 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG
);
1100 if (!unified_image
) {
1101 ret
= iwl_mvm_switch_to_d3(mvm
);
1105 /* In theory, we wouldn't have to stop a running sched
1106 * scan in order to start another one (for
1107 * net-detect). But in practice this doesn't seem to
1108 * work properly, so stop any running sched_scan now.
1110 ret
= iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_SCHED
, true);
1115 /* rfkill release can be either for wowlan or netdetect */
1116 if (wowlan
->rfkill_release
)
1117 wowlan_config_cmd
.wakeup_filter
|=
1118 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT
);
1120 ret
= iwl_mvm_send_cmd_pdu(mvm
, WOWLAN_CONFIGURATION
, 0,
1121 sizeof(wowlan_config_cmd
),
1122 &wowlan_config_cmd
);
1126 ret
= iwl_mvm_sched_scan_start(mvm
, vif
, nd_config
, &mvm
->nd_ies
,
1127 IWL_MVM_SCAN_NETDETECT
);
1131 if (WARN_ON(mvm
->nd_match_sets
|| mvm
->nd_channels
))
1134 /* save the sched scan matchsets... */
1135 if (nd_config
->n_match_sets
) {
1136 mvm
->nd_match_sets
= kmemdup(nd_config
->match_sets
,
1137 sizeof(*nd_config
->match_sets
) *
1138 nd_config
->n_match_sets
,
1140 if (mvm
->nd_match_sets
)
1141 mvm
->n_nd_match_sets
= nd_config
->n_match_sets
;
1144 /* ...and the sched scan channels for later reporting */
1145 mvm
->nd_channels
= kmemdup(nd_config
->channels
,
1146 sizeof(*nd_config
->channels
) *
1147 nd_config
->n_channels
,
1149 if (mvm
->nd_channels
)
1150 mvm
->n_nd_channels
= nd_config
->n_channels
;
1155 static void iwl_mvm_free_nd(struct iwl_mvm
*mvm
)
1157 kfree(mvm
->nd_match_sets
);
1158 mvm
->nd_match_sets
= NULL
;
1159 mvm
->n_nd_match_sets
= 0;
1160 kfree(mvm
->nd_channels
);
1161 mvm
->nd_channels
= NULL
;
1162 mvm
->n_nd_channels
= 0;
1165 static int __iwl_mvm_suspend(struct ieee80211_hw
*hw
,
1166 struct cfg80211_wowlan
*wowlan
,
1169 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1170 struct ieee80211_vif
*vif
= NULL
;
1171 struct iwl_mvm_vif
*mvmvif
= NULL
;
1172 struct ieee80211_sta
*ap_sta
= NULL
;
1173 struct iwl_d3_manager_config d3_cfg_cmd_data
= {
1175 * Program the minimum sleep time to 10 seconds, as many
1176 * platforms have issues processing a wakeup signal while
1177 * still being in the process of suspending.
1179 .min_sleep_time
= cpu_to_le32(10 * 1000 * 1000),
1181 struct iwl_host_cmd d3_cfg_cmd
= {
1182 .id
= D3_CONFIG_CMD
,
1183 .flags
= CMD_WANT_SKB
,
1184 .data
[0] = &d3_cfg_cmd_data
,
1185 .len
[0] = sizeof(d3_cfg_cmd_data
),
1188 int len __maybe_unused
;
1189 bool unified_image
= fw_has_capa(&mvm
->fw
->ucode_capa
,
1190 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG
);
1194 * mac80211 shouldn't get here, but for D3 test
1195 * it doesn't warrant a warning
1201 mutex_lock(&mvm
->mutex
);
1203 vif
= iwl_mvm_get_bss_vif(mvm
);
1204 if (IS_ERR_OR_NULL(vif
)) {
1209 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1211 if (mvmvif
->ap_sta_id
== IWL_MVM_INVALID_STA
) {
1212 /* if we're not associated, this must be netdetect */
1213 if (!wowlan
->nd_config
) {
1218 ret
= iwl_mvm_netdetect_config(
1219 mvm
, wowlan
, wowlan
->nd_config
, vif
);
1223 mvm
->net_detect
= true;
1225 struct iwl_wowlan_config_cmd wowlan_config_cmd
= {};
1227 ap_sta
= rcu_dereference_protected(
1228 mvm
->fw_id_to_mac_id
[mvmvif
->ap_sta_id
],
1229 lockdep_is_held(&mvm
->mutex
));
1230 if (IS_ERR_OR_NULL(ap_sta
)) {
1235 ret
= iwl_mvm_get_wowlan_config(mvm
, wowlan
, &wowlan_config_cmd
,
1236 vif
, mvmvif
, ap_sta
);
1239 ret
= iwl_mvm_wowlan_config(mvm
, wowlan
, &wowlan_config_cmd
,
1240 vif
, mvmvif
, ap_sta
);
1244 mvm
->net_detect
= false;
1247 ret
= iwl_mvm_power_update_device(mvm
);
1251 ret
= iwl_mvm_power_update_mac(mvm
);
1255 #ifdef CONFIG_IWLWIFI_DEBUGFS
1256 if (mvm
->d3_wake_sysassert
)
1257 d3_cfg_cmd_data
.wakeup_flags
|=
1258 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR
);
1261 /* must be last -- this switches firmware state */
1262 ret
= iwl_mvm_send_cmd(mvm
, &d3_cfg_cmd
);
1265 #ifdef CONFIG_IWLWIFI_DEBUGFS
1266 len
= iwl_rx_packet_payload_len(d3_cfg_cmd
.resp_pkt
);
1267 if (len
>= sizeof(u32
)) {
1268 mvm
->d3_test_pme_ptr
=
1269 le32_to_cpup((__le32
*)d3_cfg_cmd
.resp_pkt
->data
);
1272 iwl_free_resp(&d3_cfg_cmd
);
1274 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1276 iwl_trans_d3_suspend(mvm
->trans
, test
, !unified_image
);
1279 iwl_mvm_free_nd(mvm
);
1281 if (!unified_image
) {
1282 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1283 if (mvm
->fw_restart
> 0) {
1285 ieee80211_restart_hw(mvm
->hw
);
1290 mutex_unlock(&mvm
->mutex
);
1295 static int iwl_mvm_enter_d0i3_sync(struct iwl_mvm
*mvm
)
1297 struct iwl_notification_wait wait_d3
;
1298 static const u16 d3_notif
[] = { D3_CONFIG_CMD
};
1301 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_d3
,
1302 d3_notif
, ARRAY_SIZE(d3_notif
),
1305 ret
= iwl_mvm_enter_d0i3(mvm
->hw
->priv
);
1309 ret
= iwl_wait_notification(&mvm
->notif_wait
, &wait_d3
, HZ
);
1314 iwl_remove_notification(&mvm
->notif_wait
, &wait_d3
);
1318 int iwl_mvm_suspend(struct ieee80211_hw
*hw
, struct cfg80211_wowlan
*wowlan
)
1320 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1321 struct iwl_trans
*trans
= mvm
->trans
;
1324 /* make sure the d0i3 exit work is not pending */
1325 flush_work(&mvm
->d0i3_exit_work
);
1327 ret
= iwl_trans_suspend(trans
);
1332 trans
->system_pm_mode
= IWL_PLAT_PM_MODE_D0I3
;
1334 if (iwl_mvm_enter_d0i3_on_suspend(mvm
)) {
1335 ret
= iwl_mvm_enter_d0i3_sync(mvm
);
1341 mutex_lock(&mvm
->d0i3_suspend_mutex
);
1342 __set_bit(D0I3_DEFER_WAKEUP
, &mvm
->d0i3_suspend_flags
);
1343 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
1345 iwl_trans_d3_suspend(trans
, false, false);
1350 trans
->system_pm_mode
= IWL_PLAT_PM_MODE_D3
;
1352 return __iwl_mvm_suspend(hw
, wowlan
, false);
1355 /* converted data from the different status responses */
1356 struct iwl_wowlan_status_data
{
1360 u32 wake_packet_length
;
1361 u32 wake_packet_bufsize
;
1362 const u8
*wake_packet
;
1365 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm
*mvm
,
1366 struct ieee80211_vif
*vif
,
1367 struct iwl_wowlan_status_data
*status
)
1369 struct sk_buff
*pkt
= NULL
;
1370 struct cfg80211_wowlan_wakeup wakeup
= {
1373 struct cfg80211_wowlan_wakeup
*wakeup_report
= &wakeup
;
1374 u32 reasons
= status
->wakeup_reasons
;
1376 if (reasons
== IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS
) {
1377 wakeup_report
= NULL
;
1381 pm_wakeup_event(mvm
->dev
, 0);
1383 if (reasons
& IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET
)
1384 wakeup
.magic_pkt
= true;
1386 if (reasons
& IWL_WOWLAN_WAKEUP_BY_PATTERN
)
1387 wakeup
.pattern_idx
=
1388 status
->pattern_number
;
1390 if (reasons
& (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON
|
1391 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH
))
1392 wakeup
.disconnect
= true;
1394 if (reasons
& IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE
)
1395 wakeup
.gtk_rekey_failure
= true;
1397 if (reasons
& IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED
)
1398 wakeup
.rfkill_release
= true;
1400 if (reasons
& IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST
)
1401 wakeup
.eap_identity_req
= true;
1403 if (reasons
& IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE
)
1404 wakeup
.four_way_handshake
= true;
1406 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS
)
1407 wakeup
.tcp_connlost
= true;
1409 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE
)
1410 wakeup
.tcp_nomoretokens
= true;
1412 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET
)
1413 wakeup
.tcp_match
= true;
1415 if (status
->wake_packet_bufsize
) {
1416 int pktsize
= status
->wake_packet_bufsize
;
1417 int pktlen
= status
->wake_packet_length
;
1418 const u8
*pktdata
= status
->wake_packet
;
1419 struct ieee80211_hdr
*hdr
= (void *)pktdata
;
1420 int truncated
= pktlen
- pktsize
;
1422 /* this would be a firmware bug */
1423 if (WARN_ON_ONCE(truncated
< 0))
1426 if (ieee80211_is_data(hdr
->frame_control
)) {
1427 int hdrlen
= ieee80211_hdrlen(hdr
->frame_control
);
1428 int ivlen
= 0, icvlen
= 4; /* also FCS */
1430 pkt
= alloc_skb(pktsize
, GFP_KERNEL
);
1434 skb_put_data(pkt
, pktdata
, hdrlen
);
1438 if (ieee80211_has_protected(hdr
->frame_control
)) {
1440 * This is unlocked and using gtk_i(c)vlen,
1441 * but since everything is under RTNL still
1442 * that's not really a problem - changing
1443 * it would be difficult.
1445 if (is_multicast_ether_addr(hdr
->addr1
)) {
1446 ivlen
= mvm
->gtk_ivlen
;
1447 icvlen
+= mvm
->gtk_icvlen
;
1449 ivlen
= mvm
->ptk_ivlen
;
1450 icvlen
+= mvm
->ptk_icvlen
;
1454 /* if truncated, FCS/ICV is (partially) gone */
1455 if (truncated
>= icvlen
) {
1457 truncated
-= icvlen
;
1459 icvlen
-= truncated
;
1463 pktsize
-= ivlen
+ icvlen
;
1466 skb_put_data(pkt
, pktdata
, pktsize
);
1468 if (ieee80211_data_to_8023(pkt
, vif
->addr
, vif
->type
))
1470 wakeup
.packet
= pkt
->data
;
1471 wakeup
.packet_present_len
= pkt
->len
;
1472 wakeup
.packet_len
= pkt
->len
- truncated
;
1473 wakeup
.packet_80211
= false;
1477 if (truncated
>= 4) {
1481 fcslen
-= truncated
;
1485 wakeup
.packet
= status
->wake_packet
;
1486 wakeup
.packet_present_len
= pktsize
;
1487 wakeup
.packet_len
= pktlen
- truncated
;
1488 wakeup
.packet_80211
= true;
1493 ieee80211_report_wowlan_wakeup(vif
, wakeup_report
, GFP_KERNEL
);
1497 static void iwl_mvm_aes_sc_to_seq(struct aes_sc
*sc
,
1498 struct ieee80211_key_seq
*seq
)
1502 pn
= le64_to_cpu(sc
->pn
);
1503 seq
->ccmp
.pn
[0] = pn
>> 40;
1504 seq
->ccmp
.pn
[1] = pn
>> 32;
1505 seq
->ccmp
.pn
[2] = pn
>> 24;
1506 seq
->ccmp
.pn
[3] = pn
>> 16;
1507 seq
->ccmp
.pn
[4] = pn
>> 8;
1508 seq
->ccmp
.pn
[5] = pn
;
1511 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc
*sc
,
1512 struct ieee80211_key_seq
*seq
)
1514 seq
->tkip
.iv32
= le32_to_cpu(sc
->iv32
);
1515 seq
->tkip
.iv16
= le16_to_cpu(sc
->iv16
);
1518 static void iwl_mvm_set_aes_rx_seq(struct iwl_mvm
*mvm
, struct aes_sc
*scs
,
1519 struct ieee80211_sta
*sta
,
1520 struct ieee80211_key_conf
*key
)
1524 BUILD_BUG_ON(IWL_NUM_RSC
!= IEEE80211_NUM_TIDS
);
1526 if (sta
&& iwl_mvm_has_new_rx_api(mvm
)) {
1527 struct iwl_mvm_sta
*mvmsta
;
1528 struct iwl_mvm_key_pn
*ptk_pn
;
1530 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
1532 ptk_pn
= rcu_dereference_protected(mvmsta
->ptk_pn
[key
->keyidx
],
1533 lockdep_is_held(&mvm
->mutex
));
1534 if (WARN_ON(!ptk_pn
))
1537 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
1538 struct ieee80211_key_seq seq
= {};
1541 iwl_mvm_aes_sc_to_seq(&scs
[tid
], &seq
);
1542 ieee80211_set_key_rx_seq(key
, tid
, &seq
);
1543 for (i
= 1; i
< mvm
->trans
->num_rx_queues
; i
++)
1544 memcpy(ptk_pn
->q
[i
].pn
[tid
],
1545 seq
.ccmp
.pn
, IEEE80211_CCMP_PN_LEN
);
1548 for (tid
= 0; tid
< IWL_NUM_RSC
; tid
++) {
1549 struct ieee80211_key_seq seq
= {};
1551 iwl_mvm_aes_sc_to_seq(&scs
[tid
], &seq
);
1552 ieee80211_set_key_rx_seq(key
, tid
, &seq
);
1557 static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc
*scs
,
1558 struct ieee80211_key_conf
*key
)
1562 BUILD_BUG_ON(IWL_NUM_RSC
!= IEEE80211_NUM_TIDS
);
1564 for (tid
= 0; tid
< IWL_NUM_RSC
; tid
++) {
1565 struct ieee80211_key_seq seq
= {};
1567 iwl_mvm_tkip_sc_to_seq(&scs
[tid
], &seq
);
1568 ieee80211_set_key_rx_seq(key
, tid
, &seq
);
1572 static void iwl_mvm_set_key_rx_seq(struct iwl_mvm
*mvm
,
1573 struct ieee80211_key_conf
*key
,
1574 struct iwl_wowlan_status
*status
)
1576 union iwl_all_tsc_rsc
*rsc
= &status
->gtk
.rsc
.all_tsc_rsc
;
1578 switch (key
->cipher
) {
1579 case WLAN_CIPHER_SUITE_CCMP
:
1580 iwl_mvm_set_aes_rx_seq(mvm
, rsc
->aes
.multicast_rsc
, NULL
, key
);
1582 case WLAN_CIPHER_SUITE_TKIP
:
1583 iwl_mvm_set_tkip_rx_seq(rsc
->tkip
.multicast_rsc
, key
);
1590 struct iwl_mvm_d3_gtk_iter_data
{
1591 struct iwl_mvm
*mvm
;
1592 struct iwl_wowlan_status
*status
;
1595 bool find_phase
, unhandled_cipher
;
1599 static void iwl_mvm_d3_update_keys(struct ieee80211_hw
*hw
,
1600 struct ieee80211_vif
*vif
,
1601 struct ieee80211_sta
*sta
,
1602 struct ieee80211_key_conf
*key
,
1605 struct iwl_mvm_d3_gtk_iter_data
*data
= _data
;
1607 if (data
->unhandled_cipher
)
1610 switch (key
->cipher
) {
1611 case WLAN_CIPHER_SUITE_WEP40
:
1612 case WLAN_CIPHER_SUITE_WEP104
:
1613 /* ignore WEP completely, nothing to do */
1615 case WLAN_CIPHER_SUITE_CCMP
:
1616 case WLAN_CIPHER_SUITE_TKIP
:
1617 /* we support these */
1620 /* everything else (even CMAC for MFP) - disconnect from AP */
1621 data
->unhandled_cipher
= true;
1628 * pairwise key - update sequence counters only;
1629 * note that this assumes no TDLS sessions are active
1632 struct ieee80211_key_seq seq
= {};
1633 union iwl_all_tsc_rsc
*sc
= &data
->status
->gtk
.rsc
.all_tsc_rsc
;
1635 if (data
->find_phase
)
1638 switch (key
->cipher
) {
1639 case WLAN_CIPHER_SUITE_CCMP
:
1640 iwl_mvm_set_aes_rx_seq(data
->mvm
, sc
->aes
.unicast_rsc
,
1642 atomic64_set(&key
->tx_pn
, le64_to_cpu(sc
->aes
.tsc
.pn
));
1644 case WLAN_CIPHER_SUITE_TKIP
:
1645 iwl_mvm_tkip_sc_to_seq(&sc
->tkip
.tsc
, &seq
);
1646 iwl_mvm_set_tkip_rx_seq(sc
->tkip
.unicast_rsc
, key
);
1647 atomic64_set(&key
->tx_pn
,
1648 (u64
)seq
.tkip
.iv16
|
1649 ((u64
)seq
.tkip
.iv32
<< 16));
1653 /* that's it for this key */
1657 if (data
->find_phase
) {
1658 data
->last_gtk
= key
;
1659 data
->cipher
= key
->cipher
;
1663 if (data
->status
->num_of_gtk_rekeys
)
1664 ieee80211_remove_key(key
);
1665 else if (data
->last_gtk
== key
)
1666 iwl_mvm_set_key_rx_seq(data
->mvm
, key
, data
->status
);
1669 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm
*mvm
,
1670 struct ieee80211_vif
*vif
,
1671 struct iwl_wowlan_status
*status
)
1673 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1674 struct iwl_mvm_d3_gtk_iter_data gtkdata
= {
1678 u32 disconnection_reasons
=
1679 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON
|
1680 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH
;
1682 if (!status
|| !vif
->bss_conf
.bssid
)
1685 if (le32_to_cpu(status
->wakeup_reasons
) & disconnection_reasons
)
1688 /* find last GTK that we used initially, if any */
1689 gtkdata
.find_phase
= true;
1690 ieee80211_iter_keys(mvm
->hw
, vif
,
1691 iwl_mvm_d3_update_keys
, >kdata
);
1692 /* not trying to keep connections with MFP/unhandled ciphers */
1693 if (gtkdata
.unhandled_cipher
)
1695 if (!gtkdata
.num_keys
)
1697 if (!gtkdata
.last_gtk
)
1701 * invalidate all other GTKs that might still exist and update
1702 * the one that we used
1704 gtkdata
.find_phase
= false;
1705 ieee80211_iter_keys(mvm
->hw
, vif
,
1706 iwl_mvm_d3_update_keys
, >kdata
);
1708 if (status
->num_of_gtk_rekeys
) {
1709 struct ieee80211_key_conf
*key
;
1711 struct ieee80211_key_conf conf
;
1714 .conf
.cipher
= gtkdata
.cipher
,
1715 .conf
.keyidx
= status
->gtk
.key_index
,
1718 switch (gtkdata
.cipher
) {
1719 case WLAN_CIPHER_SUITE_CCMP
:
1720 conf
.conf
.keylen
= WLAN_KEY_LEN_CCMP
;
1721 memcpy(conf
.conf
.key
, status
->gtk
.decrypt_key
,
1724 case WLAN_CIPHER_SUITE_TKIP
:
1725 conf
.conf
.keylen
= WLAN_KEY_LEN_TKIP
;
1726 memcpy(conf
.conf
.key
, status
->gtk
.decrypt_key
, 16);
1727 /* leave TX MIC key zeroed, we don't use it anyway */
1728 memcpy(conf
.conf
.key
+
1729 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
,
1730 status
->gtk
.tkip_mic_key
, 8);
1734 key
= ieee80211_gtk_rekey_add(vif
, &conf
.conf
);
1737 iwl_mvm_set_key_rx_seq(mvm
, key
, status
);
1740 if (status
->num_of_gtk_rekeys
) {
1742 cpu_to_be64(le64_to_cpu(status
->replay_ctr
));
1743 ieee80211_gtk_rekey_notify(vif
, vif
->bss_conf
.bssid
,
1744 (void *)&replay_ctr
, GFP_KERNEL
);
1748 mvmvif
->seqno_valid
= true;
1749 /* +0x10 because the set API expects next-to-use, not last-used */
1750 mvmvif
->seqno
= le16_to_cpu(status
->non_qos_seq_ctr
) + 0x10;
1755 static struct iwl_wowlan_status
*
1756 iwl_mvm_get_wakeup_status(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
1758 u32 base
= mvm
->error_event_table
[0];
1759 struct error_table_start
{
1760 /* cf. struct iwl_error_event_table */
1764 struct iwl_host_cmd cmd
= {
1765 .id
= WOWLAN_GET_STATUSES
,
1766 .flags
= CMD_WANT_SKB
,
1768 struct iwl_wowlan_status
*status
, *fw_status
;
1769 int ret
, len
, status_size
;
1771 iwl_trans_read_mem_bytes(mvm
->trans
, base
,
1772 &err_info
, sizeof(err_info
));
1774 if (err_info
.valid
) {
1775 IWL_INFO(mvm
, "error table is valid (%d) with error (%d)\n",
1776 err_info
.valid
, err_info
.error_id
);
1777 if (err_info
.error_id
== RF_KILL_INDICATOR_FOR_WOWLAN
) {
1778 struct cfg80211_wowlan_wakeup wakeup
= {
1779 .rfkill_release
= true,
1781 ieee80211_report_wowlan_wakeup(vif
, &wakeup
,
1784 return ERR_PTR(-EIO
);
1787 /* only for tracing for now */
1788 ret
= iwl_mvm_send_cmd_pdu(mvm
, OFFLOADS_QUERY_CMD
, 0, 0, NULL
);
1790 IWL_ERR(mvm
, "failed to query offload statistics (%d)\n", ret
);
1792 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
1794 IWL_ERR(mvm
, "failed to query status (%d)\n", ret
);
1795 return ERR_PTR(ret
);
1798 status_size
= sizeof(*fw_status
);
1800 len
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
1801 if (len
< status_size
) {
1802 IWL_ERR(mvm
, "Invalid WoWLAN status response!\n");
1803 fw_status
= ERR_PTR(-EIO
);
1807 status
= (void *)cmd
.resp_pkt
->data
;
1808 if (len
!= (status_size
+
1809 ALIGN(le32_to_cpu(status
->wake_packet_bufsize
), 4))) {
1810 IWL_ERR(mvm
, "Invalid WoWLAN status response!\n");
1811 fw_status
= ERR_PTR(-EIO
);
1815 fw_status
= kmemdup(status
, len
, GFP_KERNEL
);
1818 iwl_free_resp(&cmd
);
1822 /* releases the MVM mutex */
1823 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm
*mvm
,
1824 struct ieee80211_vif
*vif
)
1826 struct iwl_wowlan_status_data status
;
1827 struct iwl_wowlan_status
*fw_status
;
1830 struct iwl_mvm_sta
*mvm_ap_sta
;
1832 fw_status
= iwl_mvm_get_wakeup_status(mvm
, vif
);
1833 if (IS_ERR_OR_NULL(fw_status
))
1836 status
.pattern_number
= le16_to_cpu(fw_status
->pattern_number
);
1837 for (i
= 0; i
< 8; i
++)
1838 status
.qos_seq_ctr
[i
] =
1839 le16_to_cpu(fw_status
->qos_seq_ctr
[i
]);
1840 status
.wakeup_reasons
= le32_to_cpu(fw_status
->wakeup_reasons
);
1841 status
.wake_packet_length
=
1842 le32_to_cpu(fw_status
->wake_packet_length
);
1843 status
.wake_packet_bufsize
=
1844 le32_to_cpu(fw_status
->wake_packet_bufsize
);
1845 status
.wake_packet
= fw_status
->wake_packet
;
1847 /* still at hard-coded place 0 for D3 image */
1848 mvm_ap_sta
= iwl_mvm_sta_from_staid_protected(mvm
, 0);
1852 for (i
= 0; i
< IWL_MAX_TID_COUNT
; i
++) {
1853 u16 seq
= status
.qos_seq_ctr
[i
];
1854 /* firmware stores last-used value, we store next value */
1856 mvm_ap_sta
->tid_data
[i
].seq_number
= seq
;
1859 /* now we have all the data we need, unlock to avoid mac80211 issues */
1860 mutex_unlock(&mvm
->mutex
);
1862 iwl_mvm_report_wakeup_reasons(mvm
, vif
, &status
);
1864 keep
= iwl_mvm_setup_connection_keep(mvm
, vif
, fw_status
);
1872 mutex_unlock(&mvm
->mutex
);
1876 void iwl_mvm_d0i3_update_keys(struct iwl_mvm
*mvm
,
1877 struct ieee80211_vif
*vif
,
1878 struct iwl_wowlan_status
*status
)
1880 struct iwl_mvm_d3_gtk_iter_data gtkdata
= {
1886 * rekey handling requires taking locks that can't be taken now.
1887 * however, d0i3 doesn't offload rekey, so we're fine.
1889 if (WARN_ON_ONCE(status
->num_of_gtk_rekeys
))
1892 /* find last GTK that we used initially, if any */
1893 gtkdata
.find_phase
= true;
1894 iwl_mvm_iter_d0i3_ap_keys(mvm
, vif
, iwl_mvm_d3_update_keys
, >kdata
);
1896 gtkdata
.find_phase
= false;
1897 iwl_mvm_iter_d0i3_ap_keys(mvm
, vif
, iwl_mvm_d3_update_keys
, >kdata
);
1900 struct iwl_mvm_nd_query_results
{
1901 u32 matched_profiles
;
1902 struct iwl_scan_offload_profile_match matches
[IWL_SCAN_MAX_PROFILES
];
1906 iwl_mvm_netdetect_query_results(struct iwl_mvm
*mvm
,
1907 struct iwl_mvm_nd_query_results
*results
)
1909 struct iwl_scan_offload_profiles_query
*query
;
1910 struct iwl_host_cmd cmd
= {
1911 .id
= SCAN_OFFLOAD_PROFILES_QUERY_CMD
,
1912 .flags
= CMD_WANT_SKB
,
1916 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
1918 IWL_ERR(mvm
, "failed to query matched profiles (%d)\n", ret
);
1922 len
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
1923 if (len
< sizeof(*query
)) {
1924 IWL_ERR(mvm
, "Invalid scan offload profiles query response!\n");
1929 query
= (void *)cmd
.resp_pkt
->data
;
1931 results
->matched_profiles
= le32_to_cpu(query
->matched_profiles
);
1932 memcpy(results
->matches
, query
->matches
, sizeof(results
->matches
));
1934 #ifdef CONFIG_IWLWIFI_DEBUGFS
1935 mvm
->last_netdetect_scans
= le32_to_cpu(query
->n_scans_done
);
1939 iwl_free_resp(&cmd
);
1943 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm
*mvm
,
1944 struct ieee80211_vif
*vif
)
1946 struct cfg80211_wowlan_nd_info
*net_detect
= NULL
;
1947 struct cfg80211_wowlan_wakeup wakeup
= {
1950 struct cfg80211_wowlan_wakeup
*wakeup_report
= &wakeup
;
1951 struct iwl_mvm_nd_query_results query
;
1952 struct iwl_wowlan_status
*fw_status
;
1953 unsigned long matched_profiles
;
1955 int i
, j
, n_matches
, ret
;
1957 fw_status
= iwl_mvm_get_wakeup_status(mvm
, vif
);
1958 if (!IS_ERR_OR_NULL(fw_status
)) {
1959 reasons
= le32_to_cpu(fw_status
->wakeup_reasons
);
1963 if (reasons
& IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED
)
1964 wakeup
.rfkill_release
= true;
1966 if (reasons
!= IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS
)
1969 ret
= iwl_mvm_netdetect_query_results(mvm
, &query
);
1970 if (ret
|| !query
.matched_profiles
) {
1971 wakeup_report
= NULL
;
1975 matched_profiles
= query
.matched_profiles
;
1976 if (mvm
->n_nd_match_sets
) {
1977 n_matches
= hweight_long(matched_profiles
);
1979 IWL_ERR(mvm
, "no net detect match information available\n");
1983 net_detect
= kzalloc(sizeof(*net_detect
) +
1984 (n_matches
* sizeof(net_detect
->matches
[0])),
1986 if (!net_detect
|| !n_matches
)
1989 for_each_set_bit(i
, &matched_profiles
, mvm
->n_nd_match_sets
) {
1990 struct iwl_scan_offload_profile_match
*fw_match
;
1991 struct cfg80211_wowlan_nd_match
*match
;
1992 int idx
, n_channels
= 0;
1994 fw_match
= &query
.matches
[i
];
1996 for (j
= 0; j
< SCAN_OFFLOAD_MATCHING_CHANNELS_LEN
; j
++)
1997 n_channels
+= hweight8(fw_match
->matching_channels
[j
]);
1999 match
= kzalloc(sizeof(*match
) +
2000 (n_channels
* sizeof(*match
->channels
)),
2005 net_detect
->matches
[net_detect
->n_matches
++] = match
;
2007 /* We inverted the order of the SSIDs in the scan
2008 * request, so invert the index here.
2010 idx
= mvm
->n_nd_match_sets
- i
- 1;
2011 match
->ssid
.ssid_len
= mvm
->nd_match_sets
[idx
].ssid
.ssid_len
;
2012 memcpy(match
->ssid
.ssid
, mvm
->nd_match_sets
[idx
].ssid
.ssid
,
2013 match
->ssid
.ssid_len
);
2015 if (mvm
->n_nd_channels
< n_channels
)
2018 for (j
= 0; j
< SCAN_OFFLOAD_MATCHING_CHANNELS_LEN
* 8; j
++)
2019 if (fw_match
->matching_channels
[j
/ 8] & (BIT(j
% 8)))
2020 match
->channels
[match
->n_channels
++] =
2021 mvm
->nd_channels
[j
]->center_freq
;
2025 wakeup
.net_detect
= net_detect
;
2027 iwl_mvm_free_nd(mvm
);
2029 mutex_unlock(&mvm
->mutex
);
2030 ieee80211_report_wowlan_wakeup(vif
, wakeup_report
, GFP_KERNEL
);
2033 for (i
= 0; i
< net_detect
->n_matches
; i
++)
2034 kfree(net_detect
->matches
[i
]);
2039 static void iwl_mvm_read_d3_sram(struct iwl_mvm
*mvm
)
2041 #ifdef CONFIG_IWLWIFI_DEBUGFS
2042 const struct fw_img
*img
= &mvm
->fw
->img
[IWL_UCODE_WOWLAN
];
2043 u32 len
= img
->sec
[IWL_UCODE_SECTION_DATA
].len
;
2044 u32 offs
= img
->sec
[IWL_UCODE_SECTION_DATA
].offset
;
2046 if (!mvm
->store_d3_resume_sram
)
2049 if (!mvm
->d3_resume_sram
) {
2050 mvm
->d3_resume_sram
= kzalloc(len
, GFP_KERNEL
);
2051 if (!mvm
->d3_resume_sram
)
2055 iwl_trans_read_mem_bytes(mvm
->trans
, offs
, mvm
->d3_resume_sram
, len
);
2059 static void iwl_mvm_d3_disconnect_iter(void *data
, u8
*mac
,
2060 struct ieee80211_vif
*vif
)
2062 /* skip the one we keep connection on */
2066 if (vif
->type
== NL80211_IFTYPE_STATION
)
2067 ieee80211_resume_disconnect(vif
);
2070 static int __iwl_mvm_resume(struct iwl_mvm
*mvm
, bool test
)
2072 struct ieee80211_vif
*vif
= NULL
;
2074 enum iwl_d3_status d3_status
;
2076 bool unified_image
= fw_has_capa(&mvm
->fw
->ucode_capa
,
2077 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG
);
2078 bool d0i3_first
= fw_has_capa(&mvm
->fw
->ucode_capa
,
2079 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST
);
2081 mutex_lock(&mvm
->mutex
);
2083 /* get the BSS vif pointer again */
2084 vif
= iwl_mvm_get_bss_vif(mvm
);
2085 if (IS_ERR_OR_NULL(vif
))
2088 ret
= iwl_trans_d3_resume(mvm
->trans
, &d3_status
, test
, !unified_image
);
2092 if (d3_status
!= IWL_D3_STATUS_ALIVE
) {
2093 IWL_INFO(mvm
, "Device was reset during suspend\n");
2097 /* query SRAM first in case we want event logging */
2098 iwl_mvm_read_d3_sram(mvm
);
2101 ret
= iwl_mvm_send_cmd_pdu(mvm
, D0I3_END_CMD
, 0, 0, NULL
);
2103 IWL_ERR(mvm
, "Failed to send D0I3_END_CMD first (%d)\n",
2110 * Query the current location and source from the D3 firmware so we
2111 * can play it back when we re-intiailize the D0 firmware
2113 iwl_mvm_update_changed_regdom(mvm
);
2116 /* Re-configure default SAR profile */
2117 iwl_mvm_sar_select_profile(mvm
, 1, 1);
2119 if (mvm
->net_detect
) {
2120 /* If this is a non-unified image, we restart the FW,
2121 * so no need to stop the netdetect scan. If that
2122 * fails, continue and try to get the wake-up reasons,
2123 * but trigger a HW restart by keeping a failure code
2127 ret
= iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_NETDETECT
,
2130 iwl_mvm_query_netdetect_reasons(mvm
, vif
);
2131 /* has unlocked the mutex, so skip that */
2134 keep
= iwl_mvm_query_wakeup_reasons(mvm
, vif
);
2135 #ifdef CONFIG_IWLWIFI_DEBUGFS
2137 mvm
->keep_vif
= vif
;
2139 /* has unlocked the mutex, so skip that */
2144 iwl_mvm_free_nd(mvm
);
2145 mutex_unlock(&mvm
->mutex
);
2149 ieee80211_iterate_active_interfaces_rtnl(mvm
->hw
,
2150 IEEE80211_IFACE_ITER_NORMAL
,
2151 iwl_mvm_d3_disconnect_iter
, keep
? vif
: NULL
);
2154 /* no need to reset the device in unified images, if successful */
2155 if (unified_image
&& !ret
) {
2156 /* nothing else to do if we already sent D0I3_END_CMD */
2160 ret
= iwl_mvm_send_cmd_pdu(mvm
, D0I3_END_CMD
, 0, 0, NULL
);
2166 * Reconfigure the device in one of the following cases:
2167 * 1. We are not using a unified image
2168 * 2. We are using a unified image but had an error while exiting D3
2170 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED
, &mvm
->status
);
2171 set_bit(IWL_MVM_STATUS_D3_RECONFIG
, &mvm
->status
);
2173 * When switching images we return 1, which causes mac80211
2174 * to do a reconfig with IEEE80211_RECONFIG_TYPE_RESTART.
2175 * This type of reconfig calls iwl_mvm_restart_complete(),
2176 * where we unref the IWL_MVM_REF_UCODE_DOWN, so we need
2177 * to take the reference here.
2179 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
2184 static int iwl_mvm_resume_d3(struct iwl_mvm
*mvm
)
2186 iwl_trans_resume(mvm
->trans
);
2188 return __iwl_mvm_resume(mvm
, false);
2191 static int iwl_mvm_resume_d0i3(struct iwl_mvm
*mvm
)
2194 enum iwl_d3_status d3_status
;
2195 struct iwl_trans
*trans
= mvm
->trans
;
2197 iwl_trans_d3_resume(trans
, &d3_status
, false, false);
2200 * make sure to clear D0I3_DEFER_WAKEUP before
2201 * calling iwl_trans_resume(), which might wait
2202 * for d0i3 exit completion.
2204 mutex_lock(&mvm
->d0i3_suspend_mutex
);
2205 __clear_bit(D0I3_DEFER_WAKEUP
, &mvm
->d0i3_suspend_flags
);
2206 exit_now
= __test_and_clear_bit(D0I3_PENDING_WAKEUP
,
2207 &mvm
->d0i3_suspend_flags
);
2208 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
2210 IWL_DEBUG_RPM(mvm
, "Run deferred d0i3 exit\n");
2211 _iwl_mvm_exit_d0i3(mvm
);
2214 iwl_trans_resume(trans
);
2216 if (iwl_mvm_enter_d0i3_on_suspend(mvm
)) {
2217 int ret
= iwl_mvm_exit_d0i3(mvm
->hw
->priv
);
2222 * d0i3 exit will be deferred until reconfig_complete.
2223 * make sure there we are out of d0i3.
2229 int iwl_mvm_resume(struct ieee80211_hw
*hw
)
2231 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2234 if (mvm
->trans
->system_pm_mode
== IWL_PLAT_PM_MODE_D0I3
)
2235 ret
= iwl_mvm_resume_d0i3(mvm
);
2237 ret
= iwl_mvm_resume_d3(mvm
);
2239 mvm
->trans
->system_pm_mode
= IWL_PLAT_PM_MODE_DISABLED
;
2244 void iwl_mvm_set_wakeup(struct ieee80211_hw
*hw
, bool enabled
)
2246 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2248 device_set_wakeup_enable(mvm
->trans
->dev
, enabled
);
2251 #ifdef CONFIG_IWLWIFI_DEBUGFS
2252 static int iwl_mvm_d3_test_open(struct inode
*inode
, struct file
*file
)
2254 struct iwl_mvm
*mvm
= inode
->i_private
;
2257 if (mvm
->d3_test_active
)
2260 file
->private_data
= inode
->i_private
;
2262 ieee80211_stop_queues(mvm
->hw
);
2265 mvm
->trans
->system_pm_mode
= IWL_PLAT_PM_MODE_D3
;
2267 /* start pseudo D3 */
2269 err
= __iwl_mvm_suspend(mvm
->hw
, mvm
->hw
->wiphy
->wowlan_config
, true);
2274 ieee80211_wake_queues(mvm
->hw
);
2277 mvm
->d3_test_active
= true;
2278 mvm
->keep_vif
= NULL
;
2282 static ssize_t
iwl_mvm_d3_test_read(struct file
*file
, char __user
*user_buf
,
2283 size_t count
, loff_t
*ppos
)
2285 struct iwl_mvm
*mvm
= file
->private_data
;
2289 /* read pme_ptr if available */
2290 if (mvm
->d3_test_pme_ptr
) {
2291 pme_asserted
= iwl_trans_read_mem32(mvm
->trans
,
2292 mvm
->d3_test_pme_ptr
);
2297 if (msleep_interruptible(100))
2304 static void iwl_mvm_d3_test_disconn_work_iter(void *_data
, u8
*mac
,
2305 struct ieee80211_vif
*vif
)
2307 /* skip the one we keep connection on */
2311 if (vif
->type
== NL80211_IFTYPE_STATION
)
2312 ieee80211_connection_loss(vif
);
2315 static int iwl_mvm_d3_test_release(struct inode
*inode
, struct file
*file
)
2317 struct iwl_mvm
*mvm
= inode
->i_private
;
2318 bool unified_image
= fw_has_capa(&mvm
->fw
->ucode_capa
,
2319 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG
);
2321 mvm
->d3_test_active
= false;
2324 __iwl_mvm_resume(mvm
, true);
2327 mvm
->trans
->system_pm_mode
= IWL_PLAT_PM_MODE_DISABLED
;
2329 iwl_abort_notification_waits(&mvm
->notif_wait
);
2330 if (!unified_image
) {
2331 int remaining_time
= 10;
2333 ieee80211_restart_hw(mvm
->hw
);
2335 /* wait for restart and disconnect all interfaces */
2336 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2337 remaining_time
> 0) {
2342 if (remaining_time
== 0)
2343 IWL_ERR(mvm
, "Timed out waiting for HW restart!\n");
2346 ieee80211_iterate_active_interfaces_atomic(
2347 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
2348 iwl_mvm_d3_test_disconn_work_iter
, mvm
->keep_vif
);
2350 ieee80211_wake_queues(mvm
->hw
);
2355 const struct file_operations iwl_dbgfs_d3_test_ops
= {
2356 .llseek
= no_llseek
,
2357 .open
= iwl_mvm_d3_test_open
,
2358 .read
= iwl_mvm_d3_test_read
,
2359 .release
= iwl_mvm_d3_test_release
,