1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
36 * All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *****************************************************************************/
66 #include <linux/etherdevice.h>
69 #include <net/cfg80211.h>
72 #include <net/addrconf.h>
73 #include "iwl-modparams.h"
77 void iwl_mvm_set_rekey_data(struct ieee80211_hw
*hw
,
78 struct ieee80211_vif
*vif
,
79 struct cfg80211_gtk_rekey_data
*data
)
81 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
82 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
84 if (iwlwifi_mod_params
.sw_crypto
)
87 mutex_lock(&mvm
->mutex
);
89 memcpy(mvmvif
->rekey_data
.kek
, data
->kek
, NL80211_KEK_LEN
);
90 memcpy(mvmvif
->rekey_data
.kck
, data
->kck
, NL80211_KCK_LEN
);
91 mvmvif
->rekey_data
.replay_ctr
=
92 cpu_to_le64(be64_to_cpup((__be64
*)&data
->replay_ctr
));
93 mvmvif
->rekey_data
.valid
= true;
95 mutex_unlock(&mvm
->mutex
);
98 #if IS_ENABLED(CONFIG_IPV6)
99 void iwl_mvm_ipv6_addr_change(struct ieee80211_hw
*hw
,
100 struct ieee80211_vif
*vif
,
101 struct inet6_dev
*idev
)
103 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
104 struct inet6_ifaddr
*ifa
;
107 read_lock_bh(&idev
->lock
);
108 list_for_each_entry(ifa
, &idev
->addr_list
, if_list
) {
109 mvmvif
->target_ipv6_addrs
[idx
] = ifa
->addr
;
111 if (idx
>= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX
)
114 read_unlock_bh(&idev
->lock
);
116 mvmvif
->num_target_ipv6_addrs
= idx
;
120 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw
*hw
,
121 struct ieee80211_vif
*vif
, int idx
)
123 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
125 mvmvif
->tx_key_idx
= idx
;
128 static void iwl_mvm_convert_p1k(u16
*p1k
, __le16
*out
)
132 for (i
= 0; i
< IWL_P1K_SIZE
; i
++)
133 out
[i
] = cpu_to_le16(p1k
[i
]);
136 struct wowlan_key_data
{
137 struct iwl_wowlan_rsc_tsc_params_cmd
*rsc_tsc
;
138 struct iwl_wowlan_tkip_params_cmd
*tkip
;
139 bool error
, use_rsc_tsc
, use_tkip
;
143 static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw
*hw
,
144 struct ieee80211_vif
*vif
,
145 struct ieee80211_sta
*sta
,
146 struct ieee80211_key_conf
*key
,
149 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
150 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
151 struct wowlan_key_data
*data
= _data
;
152 struct aes_sc
*aes_sc
, *aes_tx_sc
= NULL
;
153 struct tkip_sc
*tkip_sc
, *tkip_tx_sc
= NULL
;
154 struct iwl_p1k_cache
*rx_p1ks
;
156 struct ieee80211_key_seq seq
;
158 u16 p1k
[IWL_P1K_SIZE
];
161 mutex_lock(&mvm
->mutex
);
163 switch (key
->cipher
) {
164 case WLAN_CIPHER_SUITE_WEP40
:
165 case WLAN_CIPHER_SUITE_WEP104
: { /* hack it for now */
167 struct iwl_mvm_wep_key_cmd wep_key_cmd
;
168 struct iwl_mvm_wep_key wep_key
;
170 .wep_key_cmd
.mac_id_n_color
=
171 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
173 .wep_key_cmd
.num_keys
= 1,
174 /* firmware sets STA_KEY_FLG_WEP_13BYTES */
175 .wep_key_cmd
.decryption_type
= STA_KEY_FLG_WEP
,
176 .wep_key
.key_index
= key
->keyidx
,
177 .wep_key
.key_size
= key
->keylen
,
181 * This will fail -- the key functions don't set support
182 * pairwise WEP keys. However, that's better than silently
183 * failing WoWLAN. Or maybe not?
185 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
188 memcpy(&wkc
.wep_key
.key
[3], key
->key
, key
->keylen
);
189 if (key
->keyidx
== mvmvif
->tx_key_idx
) {
190 /* TX key must be at offset 0 */
191 wkc
.wep_key
.key_offset
= 0;
193 /* others start at 1 */
195 wkc
.wep_key
.key_offset
= data
->wep_key_idx
;
198 ret
= iwl_mvm_send_cmd_pdu(mvm
, WEP_KEY
, 0, sizeof(wkc
), &wkc
);
199 data
->error
= ret
!= 0;
201 mvm
->ptk_ivlen
= key
->iv_len
;
202 mvm
->ptk_icvlen
= key
->icv_len
;
203 mvm
->gtk_ivlen
= key
->iv_len
;
204 mvm
->gtk_icvlen
= key
->icv_len
;
206 /* don't upload key again */
212 case WLAN_CIPHER_SUITE_AES_CMAC
:
214 * Ignore CMAC keys -- the WoWLAN firmware doesn't support them
215 * but we also shouldn't abort suspend due to that. It does have
216 * support for the IGTK key renewal, but doesn't really use the
217 * IGTK for anything. This means we could spuriously wake up or
218 * be deauthenticated, but that was considered acceptable.
221 case WLAN_CIPHER_SUITE_TKIP
:
223 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.unicast_rsc
;
224 tkip_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.tkip
.tsc
;
226 rx_p1ks
= data
->tkip
->rx_uni
;
228 ieee80211_get_key_tx_seq(key
, &seq
);
229 tkip_tx_sc
->iv16
= cpu_to_le16(seq
.tkip
.iv16
);
230 tkip_tx_sc
->iv32
= cpu_to_le32(seq
.tkip
.iv32
);
232 ieee80211_get_tkip_p1k_iv(key
, seq
.tkip
.iv32
, p1k
);
233 iwl_mvm_convert_p1k(p1k
, data
->tkip
->tx
.p1k
);
235 memcpy(data
->tkip
->mic_keys
.tx
,
236 &key
->key
[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY
],
239 rx_mic_key
= data
->tkip
->mic_keys
.rx_unicast
;
242 data
->rsc_tsc
->all_tsc_rsc
.tkip
.multicast_rsc
;
243 rx_p1ks
= data
->tkip
->rx_multi
;
244 rx_mic_key
= data
->tkip
->mic_keys
.rx_mcast
;
248 * For non-QoS this relies on the fact that both the uCode and
249 * mac80211 use TID 0 (as they need to to avoid replay attacks)
250 * for checking the IV in the frames.
252 for (i
= 0; i
< IWL_NUM_RSC
; i
++) {
253 ieee80211_get_key_rx_seq(key
, i
, &seq
);
254 tkip_sc
[i
].iv16
= cpu_to_le16(seq
.tkip
.iv16
);
255 tkip_sc
[i
].iv32
= cpu_to_le32(seq
.tkip
.iv32
);
256 /* wrapping isn't allowed, AP must rekey */
257 if (seq
.tkip
.iv32
> cur_rx_iv32
)
258 cur_rx_iv32
= seq
.tkip
.iv32
;
261 ieee80211_get_tkip_rx_p1k(key
, vif
->bss_conf
.bssid
,
263 iwl_mvm_convert_p1k(p1k
, rx_p1ks
[0].p1k
);
264 ieee80211_get_tkip_rx_p1k(key
, vif
->bss_conf
.bssid
,
265 cur_rx_iv32
+ 1, p1k
);
266 iwl_mvm_convert_p1k(p1k
, rx_p1ks
[1].p1k
);
269 &key
->key
[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
],
272 data
->use_tkip
= true;
273 data
->use_rsc_tsc
= true;
275 case WLAN_CIPHER_SUITE_CCMP
:
279 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.unicast_rsc
;
280 aes_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.aes
.tsc
;
282 pn64
= atomic64_read(&key
->tx_pn
);
283 aes_tx_sc
->pn
= cpu_to_le64(pn64
);
285 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.multicast_rsc
;
289 * For non-QoS this relies on the fact that both the uCode and
290 * mac80211 use TID 0 for checking the IV in the frames.
292 for (i
= 0; i
< IWL_NUM_RSC
; i
++) {
293 u8
*pn
= seq
.ccmp
.pn
;
295 ieee80211_get_key_rx_seq(key
, i
, &seq
);
296 aes_sc
[i
].pn
= cpu_to_le64((u64
)pn
[5] |
303 data
->use_rsc_tsc
= true;
308 * The D3 firmware hardcodes the key offset 0 as the key it uses
309 * to transmit packets to the AP, i.e. the PTK.
311 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
) {
313 mvm
->ptk_ivlen
= key
->iv_len
;
314 mvm
->ptk_icvlen
= key
->icv_len
;
317 * firmware only supports TSC/RSC for a single key,
318 * so if there are multiple keep overwriting them
319 * with new ones -- this relies on mac80211 doing
323 mvm
->gtk_ivlen
= key
->iv_len
;
324 mvm
->gtk_icvlen
= key
->icv_len
;
327 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, true);
328 data
->error
= ret
!= 0;
330 mutex_unlock(&mvm
->mutex
);
333 static int iwl_mvm_send_patterns(struct iwl_mvm
*mvm
,
334 struct cfg80211_wowlan
*wowlan
)
336 struct iwl_wowlan_patterns_cmd
*pattern_cmd
;
337 struct iwl_host_cmd cmd
= {
338 .id
= WOWLAN_PATTERNS
,
339 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
343 if (!wowlan
->n_patterns
)
346 cmd
.len
[0] = sizeof(*pattern_cmd
) +
347 wowlan
->n_patterns
* sizeof(struct iwl_wowlan_pattern
);
349 pattern_cmd
= kmalloc(cmd
.len
[0], GFP_KERNEL
);
353 pattern_cmd
->n_patterns
= cpu_to_le32(wowlan
->n_patterns
);
355 for (i
= 0; i
< wowlan
->n_patterns
; i
++) {
356 int mask_len
= DIV_ROUND_UP(wowlan
->patterns
[i
].pattern_len
, 8);
358 memcpy(&pattern_cmd
->patterns
[i
].mask
,
359 wowlan
->patterns
[i
].mask
, mask_len
);
360 memcpy(&pattern_cmd
->patterns
[i
].pattern
,
361 wowlan
->patterns
[i
].pattern
,
362 wowlan
->patterns
[i
].pattern_len
);
363 pattern_cmd
->patterns
[i
].mask_size
= mask_len
;
364 pattern_cmd
->patterns
[i
].pattern_size
=
365 wowlan
->patterns
[i
].pattern_len
;
368 cmd
.data
[0] = pattern_cmd
;
369 err
= iwl_mvm_send_cmd(mvm
, &cmd
);
374 enum iwl_mvm_tcp_packet_type
{
383 static __le16
pseudo_hdr_check(int len
, __be32 saddr
, __be32 daddr
)
385 __sum16 check
= tcp_v4_check(len
, saddr
, daddr
, 0);
386 return cpu_to_le16(be16_to_cpu((__force __be16
)check
));
389 static void iwl_mvm_build_tcp_packet(struct ieee80211_vif
*vif
,
390 struct cfg80211_wowlan_tcp
*tcp
,
391 void *_pkt
, u8
*mask
,
392 __le16
*pseudo_hdr_csum
,
393 enum iwl_mvm_tcp_packet_type ptype
)
400 } __packed
*pkt
= _pkt
;
401 u16 ip_tot_len
= sizeof(struct iphdr
) + sizeof(struct tcphdr
);
404 pkt
->eth
.h_proto
= cpu_to_be16(ETH_P_IP
),
407 pkt
->ip
.protocol
= IPPROTO_TCP
;
411 case MVM_TCP_TX_DATA
:
413 memcpy(pkt
->eth
.h_dest
, tcp
->dst_mac
, ETH_ALEN
);
414 memcpy(pkt
->eth
.h_source
, vif
->addr
, ETH_ALEN
);
416 pkt
->ip
.saddr
= tcp
->src
;
417 pkt
->ip
.daddr
= tcp
->dst
;
418 pkt
->tcp
.source
= cpu_to_be16(tcp
->src_port
);
419 pkt
->tcp
.dest
= cpu_to_be16(tcp
->dst_port
);
420 /* overwritten for TX SYN later */
421 pkt
->tcp
.doff
= sizeof(struct tcphdr
) / 4;
422 pkt
->tcp
.window
= cpu_to_be16(65000);
424 case MVM_TCP_RX_SYNACK
:
426 case MVM_TCP_RX_WAKE
:
427 memcpy(pkt
->eth
.h_dest
, vif
->addr
, ETH_ALEN
);
428 memcpy(pkt
->eth
.h_source
, tcp
->dst_mac
, ETH_ALEN
);
429 pkt
->ip
.saddr
= tcp
->dst
;
430 pkt
->ip
.daddr
= tcp
->src
;
431 pkt
->tcp
.source
= cpu_to_be16(tcp
->dst_port
);
432 pkt
->tcp
.dest
= cpu_to_be16(tcp
->src_port
);
441 /* firmware assumes 8 option bytes - 8 NOPs for now */
442 memset(pkt
->data
, 0x01, 8);
444 pkt
->tcp
.doff
= (sizeof(struct tcphdr
) + 8) / 4;
447 case MVM_TCP_TX_DATA
:
448 ip_tot_len
+= tcp
->payload_len
;
449 memcpy(pkt
->data
, tcp
->payload
, tcp
->payload_len
);
457 case MVM_TCP_RX_SYNACK
:
464 case MVM_TCP_RX_WAKE
:
465 ip_tot_len
+= tcp
->wake_len
;
468 memcpy(pkt
->data
, tcp
->wake_data
, tcp
->wake_len
);
474 case MVM_TCP_TX_DATA
:
476 pkt
->ip
.tot_len
= cpu_to_be16(ip_tot_len
);
477 pkt
->ip
.check
= ip_fast_csum(&pkt
->ip
, pkt
->ip
.ihl
);
479 case MVM_TCP_RX_WAKE
:
480 for (i
= 0; i
< DIV_ROUND_UP(tcp
->wake_len
, 8); i
++) {
481 u8 tmp
= tcp
->wake_mask
[i
];
482 mask
[i
+ 6] |= tmp
<< 6;
483 if (i
+ 1 < DIV_ROUND_UP(tcp
->wake_len
, 8))
484 mask
[i
+ 7] = tmp
>> 2;
486 /* fall through for ethernet/IP/TCP headers mask */
487 case MVM_TCP_RX_SYNACK
:
489 mask
[0] = 0xff; /* match ethernet */
491 * match ethernet, ip.version, ip.ihl
492 * the ip.ihl half byte is really masked out by firmware
495 mask
[2] = 0x80; /* match ip.protocol */
496 mask
[3] = 0xfc; /* match ip.saddr, ip.daddr */
497 mask
[4] = 0x3f; /* match ip.daddr, tcp.source, tcp.dest */
498 mask
[5] = 0x80; /* match tcp flags */
499 /* leave rest (0 or set for MVM_TCP_RX_WAKE) */
503 *pseudo_hdr_csum
= pseudo_hdr_check(ip_tot_len
- sizeof(struct iphdr
),
504 pkt
->ip
.saddr
, pkt
->ip
.daddr
);
507 static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm
*mvm
,
508 struct ieee80211_vif
*vif
,
509 struct cfg80211_wowlan_tcp
*tcp
)
511 struct iwl_wowlan_remote_wake_config
*cfg
;
512 struct iwl_host_cmd cmd
= {
513 .id
= REMOTE_WAKE_CONFIG_CMD
,
514 .len
= { sizeof(*cfg
), },
515 .dataflags
= { IWL_HCMD_DFL_NOCOPY
, },
522 cfg
= kzalloc(sizeof(*cfg
), GFP_KERNEL
);
527 cfg
->max_syn_retries
= 10;
528 cfg
->max_data_retries
= 10;
529 cfg
->tcp_syn_ack_timeout
= 1; /* seconds */
530 cfg
->tcp_ack_timeout
= 1; /* seconds */
533 iwl_mvm_build_tcp_packet(
534 vif
, tcp
, cfg
->syn_tx
.data
, NULL
,
535 &cfg
->syn_tx
.info
.tcp_pseudo_header_checksum
,
537 cfg
->syn_tx
.info
.tcp_payload_length
= 0;
540 iwl_mvm_build_tcp_packet(
541 vif
, tcp
, cfg
->synack_rx
.data
, cfg
->synack_rx
.rx_mask
,
542 &cfg
->synack_rx
.info
.tcp_pseudo_header_checksum
,
544 cfg
->synack_rx
.info
.tcp_payload_length
= 0;
546 /* KEEPALIVE/ACK (TX) */
547 iwl_mvm_build_tcp_packet(
548 vif
, tcp
, cfg
->keepalive_tx
.data
, NULL
,
549 &cfg
->keepalive_tx
.info
.tcp_pseudo_header_checksum
,
551 cfg
->keepalive_tx
.info
.tcp_payload_length
=
552 cpu_to_le16(tcp
->payload_len
);
553 cfg
->sequence_number_offset
= tcp
->payload_seq
.offset
;
554 /* length must be 0..4, the field is little endian */
555 cfg
->sequence_number_length
= tcp
->payload_seq
.len
;
556 cfg
->initial_sequence_number
= cpu_to_le32(tcp
->payload_seq
.start
);
557 cfg
->keepalive_interval
= cpu_to_le16(tcp
->data_interval
);
558 if (tcp
->payload_tok
.len
) {
559 cfg
->token_offset
= tcp
->payload_tok
.offset
;
560 cfg
->token_length
= tcp
->payload_tok
.len
;
562 cpu_to_le16(tcp
->tokens_size
% tcp
->payload_tok
.len
);
563 memcpy(cfg
->tokens
, tcp
->payload_tok
.token_stream
,
566 /* set tokens to max value to almost never run out */
567 cfg
->num_tokens
= cpu_to_le16(65535);
571 iwl_mvm_build_tcp_packet(
572 vif
, tcp
, cfg
->keepalive_ack_rx
.data
,
573 cfg
->keepalive_ack_rx
.rx_mask
,
574 &cfg
->keepalive_ack_rx
.info
.tcp_pseudo_header_checksum
,
576 cfg
->keepalive_ack_rx
.info
.tcp_payload_length
= 0;
579 iwl_mvm_build_tcp_packet(
580 vif
, tcp
, cfg
->wake_rx
.data
, cfg
->wake_rx
.rx_mask
,
581 &cfg
->wake_rx
.info
.tcp_pseudo_header_checksum
,
583 cfg
->wake_rx
.info
.tcp_payload_length
=
584 cpu_to_le16(tcp
->wake_len
);
587 iwl_mvm_build_tcp_packet(
588 vif
, tcp
, cfg
->fin_tx
.data
, NULL
,
589 &cfg
->fin_tx
.info
.tcp_pseudo_header_checksum
,
591 cfg
->fin_tx
.info
.tcp_payload_length
= 0;
593 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
599 static int iwl_mvm_d3_reprogram(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
600 struct ieee80211_sta
*ap_sta
)
602 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
603 struct ieee80211_chanctx_conf
*ctx
;
604 u8 chains_static
, chains_dynamic
;
605 struct cfg80211_chan_def chandef
;
607 struct iwl_binding_cmd binding_cmd
= {};
608 struct iwl_time_quota_cmd quota_cmd
= {};
611 /* add back the PHY */
612 if (WARN_ON(!mvmvif
->phy_ctxt
))
616 ctx
= rcu_dereference(vif
->chanctx_conf
);
622 chains_static
= ctx
->rx_chains_static
;
623 chains_dynamic
= ctx
->rx_chains_dynamic
;
626 ret
= iwl_mvm_phy_ctxt_add(mvm
, mvmvif
->phy_ctxt
, &chandef
,
627 chains_static
, chains_dynamic
);
631 /* add back the MAC */
632 mvmvif
->uploaded
= false;
634 if (WARN_ON(!vif
->bss_conf
.assoc
))
637 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
641 /* add back binding - XXX refactor? */
642 binding_cmd
.id_and_color
=
643 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
644 mvmvif
->phy_ctxt
->color
));
645 binding_cmd
.action
= cpu_to_le32(FW_CTXT_ACTION_ADD
);
647 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
648 mvmvif
->phy_ctxt
->color
));
649 binding_cmd
.macs
[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
651 for (i
= 1; i
< MAX_MACS_IN_BINDING
; i
++)
652 binding_cmd
.macs
[i
] = cpu_to_le32(FW_CTXT_INVALID
);
655 ret
= iwl_mvm_send_cmd_pdu_status(mvm
, BINDING_CONTEXT_CMD
,
656 sizeof(binding_cmd
), &binding_cmd
,
659 IWL_ERR(mvm
, "Failed to add binding: %d\n", ret
);
664 IWL_ERR(mvm
, "Binding command failed: %u\n", status
);
668 ret
= iwl_mvm_sta_send_to_fw(mvm
, ap_sta
, false);
671 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvmvif
->ap_sta_id
], ap_sta
);
673 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
678 quota_cmd
.quotas
[0].id_and_color
=
679 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
680 mvmvif
->phy_ctxt
->color
));
681 quota_cmd
.quotas
[0].quota
= cpu_to_le32(IWL_MVM_MAX_QUOTA
);
682 quota_cmd
.quotas
[0].max_duration
= cpu_to_le32(IWL_MVM_MAX_QUOTA
);
684 for (i
= 1; i
< MAX_BINDINGS
; i
++)
685 quota_cmd
.quotas
[i
].id_and_color
= cpu_to_le32(FW_CTXT_INVALID
);
687 ret
= iwl_mvm_send_cmd_pdu(mvm
, TIME_QUOTA_CMD
, 0,
688 sizeof(quota_cmd
), "a_cmd
);
690 IWL_ERR(mvm
, "Failed to send quota: %d\n", ret
);
692 if (iwl_mvm_is_lar_supported(mvm
) && iwl_mvm_init_fw_regd(mvm
))
693 IWL_ERR(mvm
, "Failed to initialize D3 LAR information\n");
698 static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm
*mvm
,
699 struct ieee80211_vif
*vif
)
701 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
702 struct iwl_nonqos_seq_query_cmd query_cmd
= {
703 .get_set_flag
= cpu_to_le32(IWL_NONQOS_SEQ_GET
),
705 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
708 struct iwl_host_cmd cmd
= {
709 .id
= NON_QOS_TX_COUNTER_CMD
,
710 .flags
= CMD_WANT_SKB
,
715 cmd
.data
[0] = &query_cmd
;
716 cmd
.len
[0] = sizeof(query_cmd
);
718 err
= iwl_mvm_send_cmd(mvm
, &cmd
);
722 size
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
723 if (size
< sizeof(__le16
)) {
726 err
= le16_to_cpup((__le16
*)cmd
.resp_pkt
->data
);
727 /* firmware returns next, not last-used seqno */
728 err
= (u16
) (err
- 0x10);
735 void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
737 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
738 struct iwl_nonqos_seq_query_cmd query_cmd
= {
739 .get_set_flag
= cpu_to_le32(IWL_NONQOS_SEQ_SET
),
741 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
743 .value
= cpu_to_le16(mvmvif
->seqno
),
746 /* return if called during restart, not resume from D3 */
747 if (!mvmvif
->seqno_valid
)
750 mvmvif
->seqno_valid
= false;
752 if (iwl_mvm_send_cmd_pdu(mvm
, NON_QOS_TX_COUNTER_CMD
, 0,
753 sizeof(query_cmd
), &query_cmd
))
754 IWL_ERR(mvm
, "failed to set non-QoS seqno\n");
757 static int iwl_mvm_switch_to_d3(struct iwl_mvm
*mvm
)
759 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_REGULAR
, true);
761 iwl_trans_stop_device(mvm
->trans
);
764 * Set the HW restart bit -- this is mostly true as we're
765 * going to load new firmware and reprogram that, though
766 * the reprogramming is going to be manual to avoid adding
767 * all the MACs that aren't support.
768 * We don't have to clear up everything though because the
769 * reprogramming is manual. When we resume, we'll actually
770 * go through a proper restart sequence again to switch
771 * back to the runtime firmware image.
773 set_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
775 /* We reprogram keys and shouldn't allocate new key indices */
776 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
783 return iwl_mvm_load_d3_fw(mvm
);
787 iwl_mvm_get_wowlan_config(struct iwl_mvm
*mvm
,
788 struct cfg80211_wowlan
*wowlan
,
789 struct iwl_wowlan_config_cmd
*wowlan_config_cmd
,
790 struct ieee80211_vif
*vif
, struct iwl_mvm_vif
*mvmvif
,
791 struct ieee80211_sta
*ap_sta
)
794 struct iwl_mvm_sta
*mvm_ap_sta
= iwl_mvm_sta_from_mac80211(ap_sta
);
796 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
798 wowlan_config_cmd
->is_11n_connection
=
799 ap_sta
->ht_cap
.ht_supported
;
801 /* Query the last used seqno and set it */
802 ret
= iwl_mvm_get_last_nonqos_seq(mvm
, vif
);
806 wowlan_config_cmd
->non_qos_seq
= cpu_to_le16(ret
);
808 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta
, wowlan_config_cmd
);
810 if (wowlan
->disconnect
)
811 wowlan_config_cmd
->wakeup_filter
|=
812 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS
|
813 IWL_WOWLAN_WAKEUP_LINK_CHANGE
);
814 if (wowlan
->magic_pkt
)
815 wowlan_config_cmd
->wakeup_filter
|=
816 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET
);
817 if (wowlan
->gtk_rekey_failure
)
818 wowlan_config_cmd
->wakeup_filter
|=
819 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL
);
820 if (wowlan
->eap_identity_req
)
821 wowlan_config_cmd
->wakeup_filter
|=
822 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ
);
823 if (wowlan
->four_way_handshake
)
824 wowlan_config_cmd
->wakeup_filter
|=
825 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE
);
826 if (wowlan
->n_patterns
)
827 wowlan_config_cmd
->wakeup_filter
|=
828 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH
);
830 if (wowlan
->rfkill_release
)
831 wowlan_config_cmd
->wakeup_filter
|=
832 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT
);
836 * Set the "link change" (really "link lost") flag as well
837 * since that implies losing the TCP connection.
839 wowlan_config_cmd
->wakeup_filter
|=
840 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS
|
841 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE
|
842 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET
|
843 IWL_WOWLAN_WAKEUP_LINK_CHANGE
);
850 iwl_mvm_wowlan_config(struct iwl_mvm
*mvm
,
851 struct cfg80211_wowlan
*wowlan
,
852 struct iwl_wowlan_config_cmd
*wowlan_config_cmd
,
853 struct ieee80211_vif
*vif
, struct iwl_mvm_vif
*mvmvif
,
854 struct ieee80211_sta
*ap_sta
)
856 struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd
= {};
857 struct iwl_wowlan_tkip_params_cmd tkip_cmd
= {};
858 struct wowlan_key_data key_data
= {
859 .use_rsc_tsc
= false,
865 ret
= iwl_mvm_switch_to_d3(mvm
);
869 ret
= iwl_mvm_d3_reprogram(mvm
, vif
, ap_sta
);
873 key_data
.rsc_tsc
= kzalloc(sizeof(*key_data
.rsc_tsc
), GFP_KERNEL
);
874 if (!key_data
.rsc_tsc
)
877 if (!iwlwifi_mod_params
.sw_crypto
) {
879 * This needs to be unlocked due to lock ordering
880 * constraints. Since we're in the suspend path
881 * that isn't really a problem though.
883 mutex_unlock(&mvm
->mutex
);
884 ieee80211_iter_keys(mvm
->hw
, vif
,
885 iwl_mvm_wowlan_program_keys
,
887 mutex_lock(&mvm
->mutex
);
888 if (key_data
.error
) {
893 if (key_data
.use_rsc_tsc
) {
894 struct iwl_host_cmd rsc_tsc_cmd
= {
895 .id
= WOWLAN_TSC_RSC_PARAM
,
896 .data
[0] = key_data
.rsc_tsc
,
897 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
898 .len
[0] = sizeof(*key_data
.rsc_tsc
),
901 ret
= iwl_mvm_send_cmd(mvm
, &rsc_tsc_cmd
);
906 if (key_data
.use_tkip
) {
907 ret
= iwl_mvm_send_cmd_pdu(mvm
,
915 if (mvmvif
->rekey_data
.valid
) {
916 memset(&kek_kck_cmd
, 0, sizeof(kek_kck_cmd
));
917 memcpy(kek_kck_cmd
.kck
, mvmvif
->rekey_data
.kck
,
919 kek_kck_cmd
.kck_len
= cpu_to_le16(NL80211_KCK_LEN
);
920 memcpy(kek_kck_cmd
.kek
, mvmvif
->rekey_data
.kek
,
922 kek_kck_cmd
.kek_len
= cpu_to_le16(NL80211_KEK_LEN
);
923 kek_kck_cmd
.replay_ctr
= mvmvif
->rekey_data
.replay_ctr
;
925 ret
= iwl_mvm_send_cmd_pdu(mvm
,
926 WOWLAN_KEK_KCK_MATERIAL
, 0,
934 ret
= iwl_mvm_send_cmd_pdu(mvm
, WOWLAN_CONFIGURATION
, 0,
935 sizeof(*wowlan_config_cmd
),
940 ret
= iwl_mvm_send_patterns(mvm
, wowlan
);
944 ret
= iwl_mvm_send_proto_offload(mvm
, vif
, false, 0);
948 ret
= iwl_mvm_send_remote_wake_cfg(mvm
, vif
, wowlan
->tcp
);
951 kfree(key_data
.rsc_tsc
);
956 iwl_mvm_netdetect_config(struct iwl_mvm
*mvm
,
957 struct cfg80211_wowlan
*wowlan
,
958 struct cfg80211_sched_scan_request
*nd_config
,
959 struct ieee80211_vif
*vif
)
961 struct iwl_wowlan_config_cmd wowlan_config_cmd
= {};
964 ret
= iwl_mvm_switch_to_d3(mvm
);
968 /* rfkill release can be either for wowlan or netdetect */
969 if (wowlan
->rfkill_release
)
970 wowlan_config_cmd
.wakeup_filter
|=
971 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT
);
973 ret
= iwl_mvm_send_cmd_pdu(mvm
, WOWLAN_CONFIGURATION
, 0,
974 sizeof(wowlan_config_cmd
),
979 ret
= iwl_mvm_sched_scan_start(mvm
, vif
, nd_config
, &mvm
->nd_ies
,
980 IWL_MVM_SCAN_NETDETECT
);
984 if (WARN_ON(mvm
->nd_match_sets
|| mvm
->nd_channels
))
987 /* save the sched scan matchsets... */
988 if (nd_config
->n_match_sets
) {
989 mvm
->nd_match_sets
= kmemdup(nd_config
->match_sets
,
990 sizeof(*nd_config
->match_sets
) *
991 nd_config
->n_match_sets
,
993 if (mvm
->nd_match_sets
)
994 mvm
->n_nd_match_sets
= nd_config
->n_match_sets
;
997 /* ...and the sched scan channels for later reporting */
998 mvm
->nd_channels
= kmemdup(nd_config
->channels
,
999 sizeof(*nd_config
->channels
) *
1000 nd_config
->n_channels
,
1002 if (mvm
->nd_channels
)
1003 mvm
->n_nd_channels
= nd_config
->n_channels
;
1008 static void iwl_mvm_free_nd(struct iwl_mvm
*mvm
)
1010 kfree(mvm
->nd_match_sets
);
1011 mvm
->nd_match_sets
= NULL
;
1012 mvm
->n_nd_match_sets
= 0;
1013 kfree(mvm
->nd_channels
);
1014 mvm
->nd_channels
= NULL
;
1015 mvm
->n_nd_channels
= 0;
1018 static int __iwl_mvm_suspend(struct ieee80211_hw
*hw
,
1019 struct cfg80211_wowlan
*wowlan
,
1022 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1023 struct ieee80211_vif
*vif
= NULL
;
1024 struct iwl_mvm_vif
*mvmvif
= NULL
;
1025 struct ieee80211_sta
*ap_sta
= NULL
;
1026 struct iwl_d3_manager_config d3_cfg_cmd_data
= {
1028 * Program the minimum sleep time to 10 seconds, as many
1029 * platforms have issues processing a wakeup signal while
1030 * still being in the process of suspending.
1032 .min_sleep_time
= cpu_to_le32(10 * 1000 * 1000),
1034 struct iwl_host_cmd d3_cfg_cmd
= {
1035 .id
= D3_CONFIG_CMD
,
1036 .flags
= CMD_WANT_SKB
,
1037 .data
[0] = &d3_cfg_cmd_data
,
1038 .len
[0] = sizeof(d3_cfg_cmd_data
),
1041 int len __maybe_unused
;
1045 * mac80211 shouldn't get here, but for D3 test
1046 * it doesn't warrant a warning
1052 mutex_lock(&mvm
->mutex
);
1054 vif
= iwl_mvm_get_bss_vif(mvm
);
1055 if (IS_ERR_OR_NULL(vif
)) {
1060 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1062 if (mvmvif
->ap_sta_id
== IWL_MVM_STATION_COUNT
) {
1063 /* if we're not associated, this must be netdetect */
1064 if (!wowlan
->nd_config
&& !mvm
->nd_config
) {
1069 ret
= iwl_mvm_netdetect_config(
1070 mvm
, wowlan
, wowlan
->nd_config
?: mvm
->nd_config
, vif
);
1074 mvm
->net_detect
= true;
1076 struct iwl_wowlan_config_cmd wowlan_config_cmd
= {};
1078 ap_sta
= rcu_dereference_protected(
1079 mvm
->fw_id_to_mac_id
[mvmvif
->ap_sta_id
],
1080 lockdep_is_held(&mvm
->mutex
));
1081 if (IS_ERR_OR_NULL(ap_sta
)) {
1086 ret
= iwl_mvm_get_wowlan_config(mvm
, wowlan
, &wowlan_config_cmd
,
1087 vif
, mvmvif
, ap_sta
);
1090 ret
= iwl_mvm_wowlan_config(mvm
, wowlan
, &wowlan_config_cmd
,
1091 vif
, mvmvif
, ap_sta
);
1095 mvm
->net_detect
= false;
1098 ret
= iwl_mvm_power_update_device(mvm
);
1102 ret
= iwl_mvm_power_update_mac(mvm
);
1106 #ifdef CONFIG_IWLWIFI_DEBUGFS
1107 if (mvm
->d3_wake_sysassert
)
1108 d3_cfg_cmd_data
.wakeup_flags
|=
1109 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR
);
1112 /* must be last -- this switches firmware state */
1113 ret
= iwl_mvm_send_cmd(mvm
, &d3_cfg_cmd
);
1116 #ifdef CONFIG_IWLWIFI_DEBUGFS
1117 len
= iwl_rx_packet_payload_len(d3_cfg_cmd
.resp_pkt
);
1118 if (len
>= sizeof(u32
)) {
1119 mvm
->d3_test_pme_ptr
=
1120 le32_to_cpup((__le32
*)d3_cfg_cmd
.resp_pkt
->data
);
1123 iwl_free_resp(&d3_cfg_cmd
);
1125 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1127 iwl_trans_d3_suspend(mvm
->trans
, test
);
1130 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1131 ieee80211_restart_hw(mvm
->hw
);
1132 iwl_mvm_free_nd(mvm
);
1135 mutex_unlock(&mvm
->mutex
);
1140 static int iwl_mvm_enter_d0i3_sync(struct iwl_mvm
*mvm
)
1142 struct iwl_notification_wait wait_d3
;
1143 static const u16 d3_notif
[] = { D3_CONFIG_CMD
};
1146 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_d3
,
1147 d3_notif
, ARRAY_SIZE(d3_notif
),
1150 ret
= iwl_mvm_enter_d0i3(mvm
->hw
->priv
);
1154 ret
= iwl_wait_notification(&mvm
->notif_wait
, &wait_d3
, HZ
);
1159 iwl_remove_notification(&mvm
->notif_wait
, &wait_d3
);
1163 int iwl_mvm_suspend(struct ieee80211_hw
*hw
, struct cfg80211_wowlan
*wowlan
)
1165 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1168 /* make sure the d0i3 exit work is not pending */
1169 flush_work(&mvm
->d0i3_exit_work
);
1171 ret
= iwl_trans_suspend(mvm
->trans
);
1175 mvm
->trans
->wowlan_d0i3
= wowlan
->any
;
1176 if (mvm
->trans
->wowlan_d0i3
) {
1177 /* 'any' trigger means d0i3 usage */
1178 if (mvm
->trans
->d0i3_mode
== IWL_D0I3_MODE_ON_SUSPEND
) {
1179 ret
= iwl_mvm_enter_d0i3_sync(mvm
);
1185 mutex_lock(&mvm
->d0i3_suspend_mutex
);
1186 __set_bit(D0I3_DEFER_WAKEUP
, &mvm
->d0i3_suspend_flags
);
1187 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
1189 iwl_trans_d3_suspend(mvm
->trans
, false);
1194 return __iwl_mvm_suspend(hw
, wowlan
, false);
1197 /* converted data from the different status responses */
1198 struct iwl_wowlan_status_data
{
1202 u32 wake_packet_length
;
1203 u32 wake_packet_bufsize
;
1204 const u8
*wake_packet
;
1207 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm
*mvm
,
1208 struct ieee80211_vif
*vif
,
1209 struct iwl_wowlan_status_data
*status
)
1211 struct sk_buff
*pkt
= NULL
;
1212 struct cfg80211_wowlan_wakeup wakeup
= {
1215 struct cfg80211_wowlan_wakeup
*wakeup_report
= &wakeup
;
1216 u32 reasons
= status
->wakeup_reasons
;
1218 if (reasons
== IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS
) {
1219 wakeup_report
= NULL
;
1223 if (reasons
& IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET
)
1224 wakeup
.magic_pkt
= true;
1226 if (reasons
& IWL_WOWLAN_WAKEUP_BY_PATTERN
)
1227 wakeup
.pattern_idx
=
1228 status
->pattern_number
;
1230 if (reasons
& (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON
|
1231 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH
))
1232 wakeup
.disconnect
= true;
1234 if (reasons
& IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE
)
1235 wakeup
.gtk_rekey_failure
= true;
1237 if (reasons
& IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED
)
1238 wakeup
.rfkill_release
= true;
1240 if (reasons
& IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST
)
1241 wakeup
.eap_identity_req
= true;
1243 if (reasons
& IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE
)
1244 wakeup
.four_way_handshake
= true;
1246 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS
)
1247 wakeup
.tcp_connlost
= true;
1249 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE
)
1250 wakeup
.tcp_nomoretokens
= true;
1252 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET
)
1253 wakeup
.tcp_match
= true;
1255 if (status
->wake_packet_bufsize
) {
1256 int pktsize
= status
->wake_packet_bufsize
;
1257 int pktlen
= status
->wake_packet_length
;
1258 const u8
*pktdata
= status
->wake_packet
;
1259 struct ieee80211_hdr
*hdr
= (void *)pktdata
;
1260 int truncated
= pktlen
- pktsize
;
1262 /* this would be a firmware bug */
1263 if (WARN_ON_ONCE(truncated
< 0))
1266 if (ieee80211_is_data(hdr
->frame_control
)) {
1267 int hdrlen
= ieee80211_hdrlen(hdr
->frame_control
);
1268 int ivlen
= 0, icvlen
= 4; /* also FCS */
1270 pkt
= alloc_skb(pktsize
, GFP_KERNEL
);
1274 memcpy(skb_put(pkt
, hdrlen
), pktdata
, hdrlen
);
1278 if (ieee80211_has_protected(hdr
->frame_control
)) {
1280 * This is unlocked and using gtk_i(c)vlen,
1281 * but since everything is under RTNL still
1282 * that's not really a problem - changing
1283 * it would be difficult.
1285 if (is_multicast_ether_addr(hdr
->addr1
)) {
1286 ivlen
= mvm
->gtk_ivlen
;
1287 icvlen
+= mvm
->gtk_icvlen
;
1289 ivlen
= mvm
->ptk_ivlen
;
1290 icvlen
+= mvm
->ptk_icvlen
;
1294 /* if truncated, FCS/ICV is (partially) gone */
1295 if (truncated
>= icvlen
) {
1297 truncated
-= icvlen
;
1299 icvlen
-= truncated
;
1303 pktsize
-= ivlen
+ icvlen
;
1306 memcpy(skb_put(pkt
, pktsize
), pktdata
, pktsize
);
1308 if (ieee80211_data_to_8023(pkt
, vif
->addr
, vif
->type
))
1310 wakeup
.packet
= pkt
->data
;
1311 wakeup
.packet_present_len
= pkt
->len
;
1312 wakeup
.packet_len
= pkt
->len
- truncated
;
1313 wakeup
.packet_80211
= false;
1317 if (truncated
>= 4) {
1321 fcslen
-= truncated
;
1325 wakeup
.packet
= status
->wake_packet
;
1326 wakeup
.packet_present_len
= pktsize
;
1327 wakeup
.packet_len
= pktlen
- truncated
;
1328 wakeup
.packet_80211
= true;
1333 ieee80211_report_wowlan_wakeup(vif
, wakeup_report
, GFP_KERNEL
);
1337 static void iwl_mvm_aes_sc_to_seq(struct aes_sc
*sc
,
1338 struct ieee80211_key_seq
*seq
)
1342 pn
= le64_to_cpu(sc
->pn
);
1343 seq
->ccmp
.pn
[0] = pn
>> 40;
1344 seq
->ccmp
.pn
[1] = pn
>> 32;
1345 seq
->ccmp
.pn
[2] = pn
>> 24;
1346 seq
->ccmp
.pn
[3] = pn
>> 16;
1347 seq
->ccmp
.pn
[4] = pn
>> 8;
1348 seq
->ccmp
.pn
[5] = pn
;
1351 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc
*sc
,
1352 struct ieee80211_key_seq
*seq
)
1354 seq
->tkip
.iv32
= le32_to_cpu(sc
->iv32
);
1355 seq
->tkip
.iv16
= le16_to_cpu(sc
->iv16
);
1358 static void iwl_mvm_set_aes_rx_seq(struct aes_sc
*scs
,
1359 struct ieee80211_key_conf
*key
)
1363 BUILD_BUG_ON(IWL_NUM_RSC
!= IEEE80211_NUM_TIDS
);
1365 for (tid
= 0; tid
< IWL_NUM_RSC
; tid
++) {
1366 struct ieee80211_key_seq seq
= {};
1368 iwl_mvm_aes_sc_to_seq(&scs
[tid
], &seq
);
1369 ieee80211_set_key_rx_seq(key
, tid
, &seq
);
1373 static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc
*scs
,
1374 struct ieee80211_key_conf
*key
)
1378 BUILD_BUG_ON(IWL_NUM_RSC
!= IEEE80211_NUM_TIDS
);
1380 for (tid
= 0; tid
< IWL_NUM_RSC
; tid
++) {
1381 struct ieee80211_key_seq seq
= {};
1383 iwl_mvm_tkip_sc_to_seq(&scs
[tid
], &seq
);
1384 ieee80211_set_key_rx_seq(key
, tid
, &seq
);
1388 static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf
*key
,
1389 struct iwl_wowlan_status
*status
)
1391 union iwl_all_tsc_rsc
*rsc
= &status
->gtk
.rsc
.all_tsc_rsc
;
1393 switch (key
->cipher
) {
1394 case WLAN_CIPHER_SUITE_CCMP
:
1395 iwl_mvm_set_aes_rx_seq(rsc
->aes
.multicast_rsc
, key
);
1397 case WLAN_CIPHER_SUITE_TKIP
:
1398 iwl_mvm_set_tkip_rx_seq(rsc
->tkip
.multicast_rsc
, key
);
1405 struct iwl_mvm_d3_gtk_iter_data
{
1406 struct iwl_wowlan_status
*status
;
1409 bool find_phase
, unhandled_cipher
;
1413 static void iwl_mvm_d3_update_gtks(struct ieee80211_hw
*hw
,
1414 struct ieee80211_vif
*vif
,
1415 struct ieee80211_sta
*sta
,
1416 struct ieee80211_key_conf
*key
,
1419 struct iwl_mvm_d3_gtk_iter_data
*data
= _data
;
1421 if (data
->unhandled_cipher
)
1424 switch (key
->cipher
) {
1425 case WLAN_CIPHER_SUITE_WEP40
:
1426 case WLAN_CIPHER_SUITE_WEP104
:
1427 /* ignore WEP completely, nothing to do */
1429 case WLAN_CIPHER_SUITE_CCMP
:
1430 case WLAN_CIPHER_SUITE_TKIP
:
1431 /* we support these */
1434 /* everything else (even CMAC for MFP) - disconnect from AP */
1435 data
->unhandled_cipher
= true;
1442 * pairwise key - update sequence counters only;
1443 * note that this assumes no TDLS sessions are active
1446 struct ieee80211_key_seq seq
= {};
1447 union iwl_all_tsc_rsc
*sc
= &data
->status
->gtk
.rsc
.all_tsc_rsc
;
1449 if (data
->find_phase
)
1452 switch (key
->cipher
) {
1453 case WLAN_CIPHER_SUITE_CCMP
:
1454 iwl_mvm_set_aes_rx_seq(sc
->aes
.unicast_rsc
, key
);
1455 atomic64_set(&key
->tx_pn
, le64_to_cpu(sc
->aes
.tsc
.pn
));
1457 case WLAN_CIPHER_SUITE_TKIP
:
1458 iwl_mvm_tkip_sc_to_seq(&sc
->tkip
.tsc
, &seq
);
1459 iwl_mvm_set_tkip_rx_seq(sc
->tkip
.unicast_rsc
, key
);
1460 ieee80211_set_key_tx_seq(key
, &seq
);
1464 /* that's it for this key */
1468 if (data
->find_phase
) {
1469 data
->last_gtk
= key
;
1470 data
->cipher
= key
->cipher
;
1474 if (data
->status
->num_of_gtk_rekeys
)
1475 ieee80211_remove_key(key
);
1476 else if (data
->last_gtk
== key
)
1477 iwl_mvm_set_key_rx_seq(key
, data
->status
);
1480 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm
*mvm
,
1481 struct ieee80211_vif
*vif
,
1482 struct iwl_wowlan_status
*status
)
1484 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1485 struct iwl_mvm_d3_gtk_iter_data gtkdata
= {
1488 u32 disconnection_reasons
=
1489 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON
|
1490 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH
;
1492 if (!status
|| !vif
->bss_conf
.bssid
)
1495 if (le32_to_cpu(status
->wakeup_reasons
) & disconnection_reasons
)
1498 /* find last GTK that we used initially, if any */
1499 gtkdata
.find_phase
= true;
1500 ieee80211_iter_keys(mvm
->hw
, vif
,
1501 iwl_mvm_d3_update_gtks
, >kdata
);
1502 /* not trying to keep connections with MFP/unhandled ciphers */
1503 if (gtkdata
.unhandled_cipher
)
1505 if (!gtkdata
.num_keys
)
1507 if (!gtkdata
.last_gtk
)
1511 * invalidate all other GTKs that might still exist and update
1512 * the one that we used
1514 gtkdata
.find_phase
= false;
1515 ieee80211_iter_keys(mvm
->hw
, vif
,
1516 iwl_mvm_d3_update_gtks
, >kdata
);
1518 if (status
->num_of_gtk_rekeys
) {
1519 struct ieee80211_key_conf
*key
;
1521 struct ieee80211_key_conf conf
;
1524 .conf
.cipher
= gtkdata
.cipher
,
1525 .conf
.keyidx
= status
->gtk
.key_index
,
1528 switch (gtkdata
.cipher
) {
1529 case WLAN_CIPHER_SUITE_CCMP
:
1530 conf
.conf
.keylen
= WLAN_KEY_LEN_CCMP
;
1531 memcpy(conf
.conf
.key
, status
->gtk
.decrypt_key
,
1534 case WLAN_CIPHER_SUITE_TKIP
:
1535 conf
.conf
.keylen
= WLAN_KEY_LEN_TKIP
;
1536 memcpy(conf
.conf
.key
, status
->gtk
.decrypt_key
, 16);
1537 /* leave TX MIC key zeroed, we don't use it anyway */
1538 memcpy(conf
.conf
.key
+
1539 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
,
1540 status
->gtk
.tkip_mic_key
, 8);
1544 key
= ieee80211_gtk_rekey_add(vif
, &conf
.conf
);
1547 iwl_mvm_set_key_rx_seq(key
, status
);
1550 if (status
->num_of_gtk_rekeys
) {
1552 cpu_to_be64(le64_to_cpu(status
->replay_ctr
));
1553 ieee80211_gtk_rekey_notify(vif
, vif
->bss_conf
.bssid
,
1554 (void *)&replay_ctr
, GFP_KERNEL
);
1558 mvmvif
->seqno_valid
= true;
1559 /* +0x10 because the set API expects next-to-use, not last-used */
1560 mvmvif
->seqno
= le16_to_cpu(status
->non_qos_seq_ctr
) + 0x10;
1565 static struct iwl_wowlan_status
*
1566 iwl_mvm_get_wakeup_status(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
1568 u32 base
= mvm
->error_event_table
;
1569 struct error_table_start
{
1570 /* cf. struct iwl_error_event_table */
1574 struct iwl_host_cmd cmd
= {
1575 .id
= WOWLAN_GET_STATUSES
,
1576 .flags
= CMD_WANT_SKB
,
1578 struct iwl_wowlan_status
*status
, *fw_status
;
1579 int ret
, len
, status_size
;
1581 iwl_trans_read_mem_bytes(mvm
->trans
, base
,
1582 &err_info
, sizeof(err_info
));
1584 if (err_info
.valid
) {
1585 IWL_INFO(mvm
, "error table is valid (%d) with error (%d)\n",
1586 err_info
.valid
, err_info
.error_id
);
1587 if (err_info
.error_id
== RF_KILL_INDICATOR_FOR_WOWLAN
) {
1588 struct cfg80211_wowlan_wakeup wakeup
= {
1589 .rfkill_release
= true,
1591 ieee80211_report_wowlan_wakeup(vif
, &wakeup
,
1594 return ERR_PTR(-EIO
);
1597 /* only for tracing for now */
1598 ret
= iwl_mvm_send_cmd_pdu(mvm
, OFFLOADS_QUERY_CMD
, 0, 0, NULL
);
1600 IWL_ERR(mvm
, "failed to query offload statistics (%d)\n", ret
);
1602 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
1604 IWL_ERR(mvm
, "failed to query status (%d)\n", ret
);
1605 return ERR_PTR(ret
);
1608 /* RF-kill already asserted again... */
1609 if (!cmd
.resp_pkt
) {
1610 fw_status
= ERR_PTR(-ERFKILL
);
1614 status_size
= sizeof(*fw_status
);
1616 len
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
1617 if (len
< status_size
) {
1618 IWL_ERR(mvm
, "Invalid WoWLAN status response!\n");
1619 fw_status
= ERR_PTR(-EIO
);
1623 status
= (void *)cmd
.resp_pkt
->data
;
1624 if (len
!= (status_size
+
1625 ALIGN(le32_to_cpu(status
->wake_packet_bufsize
), 4))) {
1626 IWL_ERR(mvm
, "Invalid WoWLAN status response!\n");
1627 fw_status
= ERR_PTR(-EIO
);
1631 fw_status
= kmemdup(status
, len
, GFP_KERNEL
);
1634 iwl_free_resp(&cmd
);
1638 /* releases the MVM mutex */
1639 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm
*mvm
,
1640 struct ieee80211_vif
*vif
)
1642 struct iwl_wowlan_status_data status
;
1643 struct iwl_wowlan_status
*fw_status
;
1646 struct ieee80211_sta
*ap_sta
;
1647 struct iwl_mvm_sta
*mvm_ap_sta
;
1649 fw_status
= iwl_mvm_get_wakeup_status(mvm
, vif
);
1650 if (IS_ERR_OR_NULL(fw_status
))
1653 status
.pattern_number
= le16_to_cpu(fw_status
->pattern_number
);
1654 for (i
= 0; i
< 8; i
++)
1655 status
.qos_seq_ctr
[i
] =
1656 le16_to_cpu(fw_status
->qos_seq_ctr
[i
]);
1657 status
.wakeup_reasons
= le32_to_cpu(fw_status
->wakeup_reasons
);
1658 status
.wake_packet_length
=
1659 le32_to_cpu(fw_status
->wake_packet_length
);
1660 status
.wake_packet_bufsize
=
1661 le32_to_cpu(fw_status
->wake_packet_bufsize
);
1662 status
.wake_packet
= fw_status
->wake_packet
;
1664 /* still at hard-coded place 0 for D3 image */
1665 ap_sta
= rcu_dereference_protected(
1666 mvm
->fw_id_to_mac_id
[0],
1667 lockdep_is_held(&mvm
->mutex
));
1668 if (IS_ERR_OR_NULL(ap_sta
))
1671 mvm_ap_sta
= iwl_mvm_sta_from_mac80211(ap_sta
);
1672 for (i
= 0; i
< IWL_MAX_TID_COUNT
; i
++) {
1673 u16 seq
= status
.qos_seq_ctr
[i
];
1674 /* firmware stores last-used value, we store next value */
1676 mvm_ap_sta
->tid_data
[i
].seq_number
= seq
;
1679 /* now we have all the data we need, unlock to avoid mac80211 issues */
1680 mutex_unlock(&mvm
->mutex
);
1682 iwl_mvm_report_wakeup_reasons(mvm
, vif
, &status
);
1684 keep
= iwl_mvm_setup_connection_keep(mvm
, vif
, fw_status
);
1692 mutex_unlock(&mvm
->mutex
);
1696 struct iwl_mvm_nd_query_results
{
1697 u32 matched_profiles
;
1698 struct iwl_scan_offload_profile_match matches
[IWL_SCAN_MAX_PROFILES
];
1702 iwl_mvm_netdetect_query_results(struct iwl_mvm
*mvm
,
1703 struct iwl_mvm_nd_query_results
*results
)
1705 struct iwl_scan_offload_profiles_query
*query
;
1706 struct iwl_host_cmd cmd
= {
1707 .id
= SCAN_OFFLOAD_PROFILES_QUERY_CMD
,
1708 .flags
= CMD_WANT_SKB
,
1712 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
1714 IWL_ERR(mvm
, "failed to query matched profiles (%d)\n", ret
);
1718 /* RF-kill already asserted again... */
1719 if (!cmd
.resp_pkt
) {
1724 len
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
1725 if (len
< sizeof(*query
)) {
1726 IWL_ERR(mvm
, "Invalid scan offload profiles query response!\n");
1731 query
= (void *)cmd
.resp_pkt
->data
;
1733 results
->matched_profiles
= le32_to_cpu(query
->matched_profiles
);
1734 memcpy(results
->matches
, query
->matches
, sizeof(results
->matches
));
1736 #ifdef CONFIG_IWLWIFI_DEBUGFS
1737 mvm
->last_netdetect_scans
= le32_to_cpu(query
->n_scans_done
);
1741 iwl_free_resp(&cmd
);
1745 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm
*mvm
,
1746 struct ieee80211_vif
*vif
)
1748 struct cfg80211_wowlan_nd_info
*net_detect
= NULL
;
1749 struct cfg80211_wowlan_wakeup wakeup
= {
1752 struct cfg80211_wowlan_wakeup
*wakeup_report
= &wakeup
;
1753 struct iwl_mvm_nd_query_results query
;
1754 struct iwl_wowlan_status
*fw_status
;
1755 unsigned long matched_profiles
;
1757 int i
, j
, n_matches
, ret
;
1759 fw_status
= iwl_mvm_get_wakeup_status(mvm
, vif
);
1760 if (!IS_ERR_OR_NULL(fw_status
)) {
1761 reasons
= le32_to_cpu(fw_status
->wakeup_reasons
);
1765 if (reasons
& IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED
)
1766 wakeup
.rfkill_release
= true;
1768 if (reasons
!= IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS
)
1771 ret
= iwl_mvm_netdetect_query_results(mvm
, &query
);
1772 if (ret
|| !query
.matched_profiles
) {
1773 wakeup_report
= NULL
;
1777 matched_profiles
= query
.matched_profiles
;
1778 if (mvm
->n_nd_match_sets
) {
1779 n_matches
= hweight_long(matched_profiles
);
1781 IWL_ERR(mvm
, "no net detect match information available\n");
1785 net_detect
= kzalloc(sizeof(*net_detect
) +
1786 (n_matches
* sizeof(net_detect
->matches
[0])),
1788 if (!net_detect
|| !n_matches
)
1791 for_each_set_bit(i
, &matched_profiles
, mvm
->n_nd_match_sets
) {
1792 struct iwl_scan_offload_profile_match
*fw_match
;
1793 struct cfg80211_wowlan_nd_match
*match
;
1794 int idx
, n_channels
= 0;
1796 fw_match
= &query
.matches
[i
];
1798 for (j
= 0; j
< SCAN_OFFLOAD_MATCHING_CHANNELS_LEN
; j
++)
1799 n_channels
+= hweight8(fw_match
->matching_channels
[j
]);
1801 match
= kzalloc(sizeof(*match
) +
1802 (n_channels
* sizeof(*match
->channels
)),
1807 net_detect
->matches
[net_detect
->n_matches
++] = match
;
1809 /* We inverted the order of the SSIDs in the scan
1810 * request, so invert the index here.
1812 idx
= mvm
->n_nd_match_sets
- i
- 1;
1813 match
->ssid
.ssid_len
= mvm
->nd_match_sets
[idx
].ssid
.ssid_len
;
1814 memcpy(match
->ssid
.ssid
, mvm
->nd_match_sets
[idx
].ssid
.ssid
,
1815 match
->ssid
.ssid_len
);
1817 if (mvm
->n_nd_channels
< n_channels
)
1820 for (j
= 0; j
< SCAN_OFFLOAD_MATCHING_CHANNELS_LEN
* 8; j
++)
1821 if (fw_match
->matching_channels
[j
/ 8] & (BIT(j
% 8)))
1822 match
->channels
[match
->n_channels
++] =
1823 mvm
->nd_channels
[j
]->center_freq
;
1827 wakeup
.net_detect
= net_detect
;
1829 iwl_mvm_free_nd(mvm
);
1831 mutex_unlock(&mvm
->mutex
);
1832 ieee80211_report_wowlan_wakeup(vif
, wakeup_report
, GFP_KERNEL
);
1835 for (i
= 0; i
< net_detect
->n_matches
; i
++)
1836 kfree(net_detect
->matches
[i
]);
1841 static void iwl_mvm_read_d3_sram(struct iwl_mvm
*mvm
)
1843 #ifdef CONFIG_IWLWIFI_DEBUGFS
1844 const struct fw_img
*img
= &mvm
->fw
->img
[IWL_UCODE_WOWLAN
];
1845 u32 len
= img
->sec
[IWL_UCODE_SECTION_DATA
].len
;
1846 u32 offs
= img
->sec
[IWL_UCODE_SECTION_DATA
].offset
;
1848 if (!mvm
->store_d3_resume_sram
)
1851 if (!mvm
->d3_resume_sram
) {
1852 mvm
->d3_resume_sram
= kzalloc(len
, GFP_KERNEL
);
1853 if (!mvm
->d3_resume_sram
)
1857 iwl_trans_read_mem_bytes(mvm
->trans
, offs
, mvm
->d3_resume_sram
, len
);
1861 static void iwl_mvm_d3_disconnect_iter(void *data
, u8
*mac
,
1862 struct ieee80211_vif
*vif
)
1864 /* skip the one we keep connection on */
1868 if (vif
->type
== NL80211_IFTYPE_STATION
)
1869 ieee80211_resume_disconnect(vif
);
1872 static int __iwl_mvm_resume(struct iwl_mvm
*mvm
, bool test
)
1874 struct ieee80211_vif
*vif
= NULL
;
1876 enum iwl_d3_status d3_status
;
1879 mutex_lock(&mvm
->mutex
);
1881 /* get the BSS vif pointer again */
1882 vif
= iwl_mvm_get_bss_vif(mvm
);
1883 if (IS_ERR_OR_NULL(vif
))
1886 ret
= iwl_trans_d3_resume(mvm
->trans
, &d3_status
, test
);
1890 if (d3_status
!= IWL_D3_STATUS_ALIVE
) {
1891 IWL_INFO(mvm
, "Device was reset during suspend\n");
1895 /* query SRAM first in case we want event logging */
1896 iwl_mvm_read_d3_sram(mvm
);
1899 * Query the current location and source from the D3 firmware so we
1900 * can play it back when we re-intiailize the D0 firmware
1902 iwl_mvm_update_changed_regdom(mvm
);
1904 if (mvm
->net_detect
) {
1905 iwl_mvm_query_netdetect_reasons(mvm
, vif
);
1906 /* has unlocked the mutex, so skip that */
1909 keep
= iwl_mvm_query_wakeup_reasons(mvm
, vif
);
1910 #ifdef CONFIG_IWLWIFI_DEBUGFS
1912 mvm
->keep_vif
= vif
;
1914 /* has unlocked the mutex, so skip that */
1919 iwl_mvm_free_nd(mvm
);
1920 mutex_unlock(&mvm
->mutex
);
1924 ieee80211_iterate_active_interfaces_rtnl(mvm
->hw
,
1925 IEEE80211_IFACE_ITER_NORMAL
,
1926 iwl_mvm_d3_disconnect_iter
, keep
? vif
: NULL
);
1929 /* return 1 to reconfigure the device */
1930 set_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1931 set_bit(IWL_MVM_STATUS_D3_RECONFIG
, &mvm
->status
);
1933 /* We always return 1, which causes mac80211 to do a reconfig
1934 * with IEEE80211_RECONFIG_TYPE_RESTART. This type of
1935 * reconfig calls iwl_mvm_restart_complete(), where we unref
1936 * the IWL_MVM_REF_UCODE_DOWN, so we need to take the
1939 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1943 static int iwl_mvm_resume_d3(struct iwl_mvm
*mvm
)
1945 iwl_trans_resume(mvm
->trans
);
1947 return __iwl_mvm_resume(mvm
, false);
1950 static int iwl_mvm_resume_d0i3(struct iwl_mvm
*mvm
)
1953 enum iwl_d3_status d3_status
;
1955 iwl_trans_d3_resume(mvm
->trans
, &d3_status
, false);
1958 * make sure to clear D0I3_DEFER_WAKEUP before
1959 * calling iwl_trans_resume(), which might wait
1960 * for d0i3 exit completion.
1962 mutex_lock(&mvm
->d0i3_suspend_mutex
);
1963 __clear_bit(D0I3_DEFER_WAKEUP
, &mvm
->d0i3_suspend_flags
);
1964 exit_now
= __test_and_clear_bit(D0I3_PENDING_WAKEUP
,
1965 &mvm
->d0i3_suspend_flags
);
1966 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
1968 IWL_DEBUG_RPM(mvm
, "Run deferred d0i3 exit\n");
1969 _iwl_mvm_exit_d0i3(mvm
);
1972 iwl_trans_resume(mvm
->trans
);
1974 if (mvm
->trans
->d0i3_mode
== IWL_D0I3_MODE_ON_SUSPEND
) {
1975 int ret
= iwl_mvm_exit_d0i3(mvm
->hw
->priv
);
1980 * d0i3 exit will be deferred until reconfig_complete.
1981 * make sure there we are out of d0i3.
1987 int iwl_mvm_resume(struct ieee80211_hw
*hw
)
1989 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1991 /* 'any' trigger means d0i3 was used */
1992 if (hw
->wiphy
->wowlan_config
->any
)
1993 return iwl_mvm_resume_d0i3(mvm
);
1995 return iwl_mvm_resume_d3(mvm
);
1998 void iwl_mvm_set_wakeup(struct ieee80211_hw
*hw
, bool enabled
)
2000 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2002 device_set_wakeup_enable(mvm
->trans
->dev
, enabled
);
2005 #ifdef CONFIG_IWLWIFI_DEBUGFS
2006 static int iwl_mvm_d3_test_open(struct inode
*inode
, struct file
*file
)
2008 struct iwl_mvm
*mvm
= inode
->i_private
;
2011 if (mvm
->d3_test_active
)
2014 file
->private_data
= inode
->i_private
;
2016 ieee80211_stop_queues(mvm
->hw
);
2019 /* start pseudo D3 */
2021 err
= __iwl_mvm_suspend(mvm
->hw
, mvm
->hw
->wiphy
->wowlan_config
, true);
2026 ieee80211_wake_queues(mvm
->hw
);
2029 mvm
->d3_test_active
= true;
2030 mvm
->keep_vif
= NULL
;
2034 static ssize_t
iwl_mvm_d3_test_read(struct file
*file
, char __user
*user_buf
,
2035 size_t count
, loff_t
*ppos
)
2037 struct iwl_mvm
*mvm
= file
->private_data
;
2041 /* read pme_ptr if available */
2042 if (mvm
->d3_test_pme_ptr
) {
2043 pme_asserted
= iwl_trans_read_mem32(mvm
->trans
,
2044 mvm
->d3_test_pme_ptr
);
2049 if (msleep_interruptible(100))
2056 static void iwl_mvm_d3_test_disconn_work_iter(void *_data
, u8
*mac
,
2057 struct ieee80211_vif
*vif
)
2059 /* skip the one we keep connection on */
2063 if (vif
->type
== NL80211_IFTYPE_STATION
)
2064 ieee80211_connection_loss(vif
);
2067 static int iwl_mvm_d3_test_release(struct inode
*inode
, struct file
*file
)
2069 struct iwl_mvm
*mvm
= inode
->i_private
;
2070 int remaining_time
= 10;
2072 mvm
->d3_test_active
= false;
2074 __iwl_mvm_resume(mvm
, true);
2076 iwl_abort_notification_waits(&mvm
->notif_wait
);
2077 ieee80211_restart_hw(mvm
->hw
);
2079 /* wait for restart and disconnect all interfaces */
2080 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2081 remaining_time
> 0) {
2086 if (remaining_time
== 0)
2087 IWL_ERR(mvm
, "Timed out waiting for HW restart to finish!\n");
2089 ieee80211_iterate_active_interfaces_atomic(
2090 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
2091 iwl_mvm_d3_test_disconn_work_iter
, mvm
->keep_vif
);
2093 ieee80211_wake_queues(mvm
->hw
);
2098 const struct file_operations iwl_dbgfs_d3_test_ops
= {
2099 .llseek
= no_llseek
,
2100 .open
= iwl_mvm_d3_test_open
,
2101 .read
= iwl_mvm_d3_test_read
,
2102 .release
= iwl_mvm_d3_test_release
,