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 - 2014 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 - 2014 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
:
277 u8
*pn
= seq
.ccmp
.pn
;
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 ieee80211_get_key_tx_seq(key
, &seq
);
283 aes_tx_sc
->pn
= cpu_to_le64((u64
)pn
[5] |
290 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.multicast_rsc
;
294 * For non-QoS this relies on the fact that both the uCode and
295 * mac80211 use TID 0 for checking the IV in the frames.
297 for (i
= 0; i
< IWL_NUM_RSC
; i
++) {
298 u8
*pn
= seq
.ccmp
.pn
;
300 ieee80211_get_key_rx_seq(key
, i
, &seq
);
301 aes_sc
->pn
= cpu_to_le64((u64
)pn
[5] |
308 data
->use_rsc_tsc
= true;
313 * The D3 firmware hardcodes the key offset 0 as the key it uses
314 * to transmit packets to the AP, i.e. the PTK.
316 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
) {
318 mvm
->ptk_ivlen
= key
->iv_len
;
319 mvm
->ptk_icvlen
= key
->icv_len
;
322 * firmware only supports TSC/RSC for a single key,
323 * so if there are multiple keep overwriting them
324 * with new ones -- this relies on mac80211 doing
328 mvm
->gtk_ivlen
= key
->iv_len
;
329 mvm
->gtk_icvlen
= key
->icv_len
;
332 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, true);
333 data
->error
= ret
!= 0;
335 mutex_unlock(&mvm
->mutex
);
338 static int iwl_mvm_send_patterns(struct iwl_mvm
*mvm
,
339 struct cfg80211_wowlan
*wowlan
)
341 struct iwl_wowlan_patterns_cmd
*pattern_cmd
;
342 struct iwl_host_cmd cmd
= {
343 .id
= WOWLAN_PATTERNS
,
344 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
348 if (!wowlan
->n_patterns
)
351 cmd
.len
[0] = sizeof(*pattern_cmd
) +
352 wowlan
->n_patterns
* sizeof(struct iwl_wowlan_pattern
);
354 pattern_cmd
= kmalloc(cmd
.len
[0], GFP_KERNEL
);
358 pattern_cmd
->n_patterns
= cpu_to_le32(wowlan
->n_patterns
);
360 for (i
= 0; i
< wowlan
->n_patterns
; i
++) {
361 int mask_len
= DIV_ROUND_UP(wowlan
->patterns
[i
].pattern_len
, 8);
363 memcpy(&pattern_cmd
->patterns
[i
].mask
,
364 wowlan
->patterns
[i
].mask
, mask_len
);
365 memcpy(&pattern_cmd
->patterns
[i
].pattern
,
366 wowlan
->patterns
[i
].pattern
,
367 wowlan
->patterns
[i
].pattern_len
);
368 pattern_cmd
->patterns
[i
].mask_size
= mask_len
;
369 pattern_cmd
->patterns
[i
].pattern_size
=
370 wowlan
->patterns
[i
].pattern_len
;
373 cmd
.data
[0] = pattern_cmd
;
374 err
= iwl_mvm_send_cmd(mvm
, &cmd
);
379 enum iwl_mvm_tcp_packet_type
{
388 static __le16
pseudo_hdr_check(int len
, __be32 saddr
, __be32 daddr
)
390 __sum16 check
= tcp_v4_check(len
, saddr
, daddr
, 0);
391 return cpu_to_le16(be16_to_cpu((__force __be16
)check
));
394 static void iwl_mvm_build_tcp_packet(struct ieee80211_vif
*vif
,
395 struct cfg80211_wowlan_tcp
*tcp
,
396 void *_pkt
, u8
*mask
,
397 __le16
*pseudo_hdr_csum
,
398 enum iwl_mvm_tcp_packet_type ptype
)
405 } __packed
*pkt
= _pkt
;
406 u16 ip_tot_len
= sizeof(struct iphdr
) + sizeof(struct tcphdr
);
409 pkt
->eth
.h_proto
= cpu_to_be16(ETH_P_IP
),
412 pkt
->ip
.protocol
= IPPROTO_TCP
;
416 case MVM_TCP_TX_DATA
:
418 memcpy(pkt
->eth
.h_dest
, tcp
->dst_mac
, ETH_ALEN
);
419 memcpy(pkt
->eth
.h_source
, vif
->addr
, ETH_ALEN
);
421 pkt
->ip
.saddr
= tcp
->src
;
422 pkt
->ip
.daddr
= tcp
->dst
;
423 pkt
->tcp
.source
= cpu_to_be16(tcp
->src_port
);
424 pkt
->tcp
.dest
= cpu_to_be16(tcp
->dst_port
);
425 /* overwritten for TX SYN later */
426 pkt
->tcp
.doff
= sizeof(struct tcphdr
) / 4;
427 pkt
->tcp
.window
= cpu_to_be16(65000);
429 case MVM_TCP_RX_SYNACK
:
431 case MVM_TCP_RX_WAKE
:
432 memcpy(pkt
->eth
.h_dest
, vif
->addr
, ETH_ALEN
);
433 memcpy(pkt
->eth
.h_source
, tcp
->dst_mac
, ETH_ALEN
);
434 pkt
->ip
.saddr
= tcp
->dst
;
435 pkt
->ip
.daddr
= tcp
->src
;
436 pkt
->tcp
.source
= cpu_to_be16(tcp
->dst_port
);
437 pkt
->tcp
.dest
= cpu_to_be16(tcp
->src_port
);
446 /* firmware assumes 8 option bytes - 8 NOPs for now */
447 memset(pkt
->data
, 0x01, 8);
449 pkt
->tcp
.doff
= (sizeof(struct tcphdr
) + 8) / 4;
452 case MVM_TCP_TX_DATA
:
453 ip_tot_len
+= tcp
->payload_len
;
454 memcpy(pkt
->data
, tcp
->payload
, tcp
->payload_len
);
462 case MVM_TCP_RX_SYNACK
:
469 case MVM_TCP_RX_WAKE
:
470 ip_tot_len
+= tcp
->wake_len
;
473 memcpy(pkt
->data
, tcp
->wake_data
, tcp
->wake_len
);
479 case MVM_TCP_TX_DATA
:
481 pkt
->ip
.tot_len
= cpu_to_be16(ip_tot_len
);
482 pkt
->ip
.check
= ip_fast_csum(&pkt
->ip
, pkt
->ip
.ihl
);
484 case MVM_TCP_RX_WAKE
:
485 for (i
= 0; i
< DIV_ROUND_UP(tcp
->wake_len
, 8); i
++) {
486 u8 tmp
= tcp
->wake_mask
[i
];
487 mask
[i
+ 6] |= tmp
<< 6;
488 if (i
+ 1 < DIV_ROUND_UP(tcp
->wake_len
, 8))
489 mask
[i
+ 7] = tmp
>> 2;
491 /* fall through for ethernet/IP/TCP headers mask */
492 case MVM_TCP_RX_SYNACK
:
494 mask
[0] = 0xff; /* match ethernet */
496 * match ethernet, ip.version, ip.ihl
497 * the ip.ihl half byte is really masked out by firmware
500 mask
[2] = 0x80; /* match ip.protocol */
501 mask
[3] = 0xfc; /* match ip.saddr, ip.daddr */
502 mask
[4] = 0x3f; /* match ip.daddr, tcp.source, tcp.dest */
503 mask
[5] = 0x80; /* match tcp flags */
504 /* leave rest (0 or set for MVM_TCP_RX_WAKE) */
508 *pseudo_hdr_csum
= pseudo_hdr_check(ip_tot_len
- sizeof(struct iphdr
),
509 pkt
->ip
.saddr
, pkt
->ip
.daddr
);
512 static int iwl_mvm_send_remote_wake_cfg(struct iwl_mvm
*mvm
,
513 struct ieee80211_vif
*vif
,
514 struct cfg80211_wowlan_tcp
*tcp
)
516 struct iwl_wowlan_remote_wake_config
*cfg
;
517 struct iwl_host_cmd cmd
= {
518 .id
= REMOTE_WAKE_CONFIG_CMD
,
519 .len
= { sizeof(*cfg
), },
520 .dataflags
= { IWL_HCMD_DFL_NOCOPY
, },
527 cfg
= kzalloc(sizeof(*cfg
), GFP_KERNEL
);
532 cfg
->max_syn_retries
= 10;
533 cfg
->max_data_retries
= 10;
534 cfg
->tcp_syn_ack_timeout
= 1; /* seconds */
535 cfg
->tcp_ack_timeout
= 1; /* seconds */
538 iwl_mvm_build_tcp_packet(
539 vif
, tcp
, cfg
->syn_tx
.data
, NULL
,
540 &cfg
->syn_tx
.info
.tcp_pseudo_header_checksum
,
542 cfg
->syn_tx
.info
.tcp_payload_length
= 0;
545 iwl_mvm_build_tcp_packet(
546 vif
, tcp
, cfg
->synack_rx
.data
, cfg
->synack_rx
.rx_mask
,
547 &cfg
->synack_rx
.info
.tcp_pseudo_header_checksum
,
549 cfg
->synack_rx
.info
.tcp_payload_length
= 0;
551 /* KEEPALIVE/ACK (TX) */
552 iwl_mvm_build_tcp_packet(
553 vif
, tcp
, cfg
->keepalive_tx
.data
, NULL
,
554 &cfg
->keepalive_tx
.info
.tcp_pseudo_header_checksum
,
556 cfg
->keepalive_tx
.info
.tcp_payload_length
=
557 cpu_to_le16(tcp
->payload_len
);
558 cfg
->sequence_number_offset
= tcp
->payload_seq
.offset
;
559 /* length must be 0..4, the field is little endian */
560 cfg
->sequence_number_length
= tcp
->payload_seq
.len
;
561 cfg
->initial_sequence_number
= cpu_to_le32(tcp
->payload_seq
.start
);
562 cfg
->keepalive_interval
= cpu_to_le16(tcp
->data_interval
);
563 if (tcp
->payload_tok
.len
) {
564 cfg
->token_offset
= tcp
->payload_tok
.offset
;
565 cfg
->token_length
= tcp
->payload_tok
.len
;
567 cpu_to_le16(tcp
->tokens_size
% tcp
->payload_tok
.len
);
568 memcpy(cfg
->tokens
, tcp
->payload_tok
.token_stream
,
571 /* set tokens to max value to almost never run out */
572 cfg
->num_tokens
= cpu_to_le16(65535);
576 iwl_mvm_build_tcp_packet(
577 vif
, tcp
, cfg
->keepalive_ack_rx
.data
,
578 cfg
->keepalive_ack_rx
.rx_mask
,
579 &cfg
->keepalive_ack_rx
.info
.tcp_pseudo_header_checksum
,
581 cfg
->keepalive_ack_rx
.info
.tcp_payload_length
= 0;
584 iwl_mvm_build_tcp_packet(
585 vif
, tcp
, cfg
->wake_rx
.data
, cfg
->wake_rx
.rx_mask
,
586 &cfg
->wake_rx
.info
.tcp_pseudo_header_checksum
,
588 cfg
->wake_rx
.info
.tcp_payload_length
=
589 cpu_to_le16(tcp
->wake_len
);
592 iwl_mvm_build_tcp_packet(
593 vif
, tcp
, cfg
->fin_tx
.data
, NULL
,
594 &cfg
->fin_tx
.info
.tcp_pseudo_header_checksum
,
596 cfg
->fin_tx
.info
.tcp_payload_length
= 0;
598 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
604 static int iwl_mvm_d3_reprogram(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
605 struct ieee80211_sta
*ap_sta
)
607 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
608 struct ieee80211_chanctx_conf
*ctx
;
609 u8 chains_static
, chains_dynamic
;
610 struct cfg80211_chan_def chandef
;
612 struct iwl_binding_cmd binding_cmd
= {};
613 struct iwl_time_quota_cmd quota_cmd
= {};
616 /* add back the PHY */
617 if (WARN_ON(!mvmvif
->phy_ctxt
))
621 ctx
= rcu_dereference(vif
->chanctx_conf
);
627 chains_static
= ctx
->rx_chains_static
;
628 chains_dynamic
= ctx
->rx_chains_dynamic
;
631 ret
= iwl_mvm_phy_ctxt_add(mvm
, mvmvif
->phy_ctxt
, &chandef
,
632 chains_static
, chains_dynamic
);
636 /* add back the MAC */
637 mvmvif
->uploaded
= false;
639 if (WARN_ON(!vif
->bss_conf
.assoc
))
642 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
646 /* add back binding - XXX refactor? */
647 binding_cmd
.id_and_color
=
648 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
649 mvmvif
->phy_ctxt
->color
));
650 binding_cmd
.action
= cpu_to_le32(FW_CTXT_ACTION_ADD
);
652 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
653 mvmvif
->phy_ctxt
->color
));
654 binding_cmd
.macs
[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
656 for (i
= 1; i
< MAX_MACS_IN_BINDING
; i
++)
657 binding_cmd
.macs
[i
] = cpu_to_le32(FW_CTXT_INVALID
);
660 ret
= iwl_mvm_send_cmd_pdu_status(mvm
, BINDING_CONTEXT_CMD
,
661 sizeof(binding_cmd
), &binding_cmd
,
664 IWL_ERR(mvm
, "Failed to add binding: %d\n", ret
);
669 IWL_ERR(mvm
, "Binding command failed: %u\n", status
);
673 ret
= iwl_mvm_sta_send_to_fw(mvm
, ap_sta
, false);
676 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvmvif
->ap_sta_id
], ap_sta
);
678 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
683 quota_cmd
.quotas
[0].id_and_color
=
684 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
685 mvmvif
->phy_ctxt
->color
));
686 quota_cmd
.quotas
[0].quota
= cpu_to_le32(IWL_MVM_MAX_QUOTA
);
687 quota_cmd
.quotas
[0].max_duration
= cpu_to_le32(IWL_MVM_MAX_QUOTA
);
689 for (i
= 1; i
< MAX_BINDINGS
; i
++)
690 quota_cmd
.quotas
[i
].id_and_color
= cpu_to_le32(FW_CTXT_INVALID
);
692 ret
= iwl_mvm_send_cmd_pdu(mvm
, TIME_QUOTA_CMD
, 0,
693 sizeof(quota_cmd
), "a_cmd
);
695 IWL_ERR(mvm
, "Failed to send quota: %d\n", ret
);
697 if (iwl_mvm_is_lar_supported(mvm
) && iwl_mvm_init_fw_regd(mvm
))
698 IWL_ERR(mvm
, "Failed to initialize D3 LAR information\n");
703 static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm
*mvm
,
704 struct ieee80211_vif
*vif
)
706 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
707 struct iwl_nonqos_seq_query_cmd query_cmd
= {
708 .get_set_flag
= cpu_to_le32(IWL_NONQOS_SEQ_GET
),
710 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
713 struct iwl_host_cmd cmd
= {
714 .id
= NON_QOS_TX_COUNTER_CMD
,
715 .flags
= CMD_WANT_SKB
,
720 cmd
.data
[0] = &query_cmd
;
721 cmd
.len
[0] = sizeof(query_cmd
);
723 err
= iwl_mvm_send_cmd(mvm
, &cmd
);
727 size
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
728 if (size
< sizeof(__le16
)) {
731 err
= le16_to_cpup((__le16
*)cmd
.resp_pkt
->data
);
732 /* firmware returns next, not last-used seqno */
733 err
= (u16
) (err
- 0x10);
740 void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
742 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
743 struct iwl_nonqos_seq_query_cmd query_cmd
= {
744 .get_set_flag
= cpu_to_le32(IWL_NONQOS_SEQ_SET
),
746 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
748 .value
= cpu_to_le16(mvmvif
->seqno
),
751 /* return if called during restart, not resume from D3 */
752 if (!mvmvif
->seqno_valid
)
755 mvmvif
->seqno_valid
= false;
757 if (iwl_mvm_send_cmd_pdu(mvm
, NON_QOS_TX_COUNTER_CMD
, 0,
758 sizeof(query_cmd
), &query_cmd
))
759 IWL_ERR(mvm
, "failed to set non-QoS seqno\n");
762 static int iwl_mvm_switch_to_d3(struct iwl_mvm
*mvm
)
764 iwl_mvm_cancel_scan(mvm
);
766 iwl_trans_stop_device(mvm
->trans
);
769 * Set the HW restart bit -- this is mostly true as we're
770 * going to load new firmware and reprogram that, though
771 * the reprogramming is going to be manual to avoid adding
772 * all the MACs that aren't support.
773 * We don't have to clear up everything though because the
774 * reprogramming is manual. When we resume, we'll actually
775 * go through a proper restart sequence again to switch
776 * back to the runtime firmware image.
778 set_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
780 /* We reprogram keys and shouldn't allocate new key indices */
781 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
788 return iwl_mvm_load_d3_fw(mvm
);
792 iwl_mvm_get_wowlan_config(struct iwl_mvm
*mvm
,
793 struct cfg80211_wowlan
*wowlan
,
794 struct iwl_wowlan_config_cmd
*wowlan_config_cmd
,
795 struct ieee80211_vif
*vif
, struct iwl_mvm_vif
*mvmvif
,
796 struct ieee80211_sta
*ap_sta
)
799 struct iwl_mvm_sta
*mvm_ap_sta
= iwl_mvm_sta_from_mac80211(ap_sta
);
801 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
803 wowlan_config_cmd
->is_11n_connection
=
804 ap_sta
->ht_cap
.ht_supported
;
806 /* Query the last used seqno and set it */
807 ret
= iwl_mvm_get_last_nonqos_seq(mvm
, vif
);
811 wowlan_config_cmd
->non_qos_seq
= cpu_to_le16(ret
);
813 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta
, wowlan_config_cmd
);
815 if (wowlan
->disconnect
)
816 wowlan_config_cmd
->wakeup_filter
|=
817 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS
|
818 IWL_WOWLAN_WAKEUP_LINK_CHANGE
);
819 if (wowlan
->magic_pkt
)
820 wowlan_config_cmd
->wakeup_filter
|=
821 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET
);
822 if (wowlan
->gtk_rekey_failure
)
823 wowlan_config_cmd
->wakeup_filter
|=
824 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL
);
825 if (wowlan
->eap_identity_req
)
826 wowlan_config_cmd
->wakeup_filter
|=
827 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ
);
828 if (wowlan
->four_way_handshake
)
829 wowlan_config_cmd
->wakeup_filter
|=
830 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE
);
831 if (wowlan
->n_patterns
)
832 wowlan_config_cmd
->wakeup_filter
|=
833 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH
);
835 if (wowlan
->rfkill_release
)
836 wowlan_config_cmd
->wakeup_filter
|=
837 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT
);
841 * Set the "link change" (really "link lost") flag as well
842 * since that implies losing the TCP connection.
844 wowlan_config_cmd
->wakeup_filter
|=
845 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS
|
846 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE
|
847 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET
|
848 IWL_WOWLAN_WAKEUP_LINK_CHANGE
);
855 iwl_mvm_wowlan_config(struct iwl_mvm
*mvm
,
856 struct cfg80211_wowlan
*wowlan
,
857 struct iwl_wowlan_config_cmd
*wowlan_config_cmd
,
858 struct ieee80211_vif
*vif
, struct iwl_mvm_vif
*mvmvif
,
859 struct ieee80211_sta
*ap_sta
)
861 struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd
= {};
862 struct iwl_wowlan_tkip_params_cmd tkip_cmd
= {};
863 struct wowlan_key_data key_data
= {
864 .use_rsc_tsc
= false,
870 ret
= iwl_mvm_switch_to_d3(mvm
);
874 ret
= iwl_mvm_d3_reprogram(mvm
, vif
, ap_sta
);
878 key_data
.rsc_tsc
= kzalloc(sizeof(*key_data
.rsc_tsc
), GFP_KERNEL
);
879 if (!key_data
.rsc_tsc
)
882 if (!iwlwifi_mod_params
.sw_crypto
) {
884 * This needs to be unlocked due to lock ordering
885 * constraints. Since we're in the suspend path
886 * that isn't really a problem though.
888 mutex_unlock(&mvm
->mutex
);
889 ieee80211_iter_keys(mvm
->hw
, vif
,
890 iwl_mvm_wowlan_program_keys
,
892 mutex_lock(&mvm
->mutex
);
893 if (key_data
.error
) {
898 if (key_data
.use_rsc_tsc
) {
899 struct iwl_host_cmd rsc_tsc_cmd
= {
900 .id
= WOWLAN_TSC_RSC_PARAM
,
901 .data
[0] = key_data
.rsc_tsc
,
902 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
903 .len
[0] = sizeof(*key_data
.rsc_tsc
),
906 ret
= iwl_mvm_send_cmd(mvm
, &rsc_tsc_cmd
);
911 if (key_data
.use_tkip
) {
912 ret
= iwl_mvm_send_cmd_pdu(mvm
,
920 if (mvmvif
->rekey_data
.valid
) {
921 memset(&kek_kck_cmd
, 0, sizeof(kek_kck_cmd
));
922 memcpy(kek_kck_cmd
.kck
, mvmvif
->rekey_data
.kck
,
924 kek_kck_cmd
.kck_len
= cpu_to_le16(NL80211_KCK_LEN
);
925 memcpy(kek_kck_cmd
.kek
, mvmvif
->rekey_data
.kek
,
927 kek_kck_cmd
.kek_len
= cpu_to_le16(NL80211_KEK_LEN
);
928 kek_kck_cmd
.replay_ctr
= mvmvif
->rekey_data
.replay_ctr
;
930 ret
= iwl_mvm_send_cmd_pdu(mvm
,
931 WOWLAN_KEK_KCK_MATERIAL
, 0,
939 ret
= iwl_mvm_send_cmd_pdu(mvm
, WOWLAN_CONFIGURATION
, 0,
940 sizeof(*wowlan_config_cmd
),
945 ret
= iwl_mvm_send_patterns(mvm
, wowlan
);
949 ret
= iwl_mvm_send_proto_offload(mvm
, vif
, false, 0);
953 ret
= iwl_mvm_send_remote_wake_cfg(mvm
, vif
, wowlan
->tcp
);
956 kfree(key_data
.rsc_tsc
);
961 iwl_mvm_netdetect_config(struct iwl_mvm
*mvm
,
962 struct cfg80211_wowlan
*wowlan
,
963 struct cfg80211_sched_scan_request
*nd_config
,
964 struct ieee80211_vif
*vif
)
966 struct iwl_wowlan_config_cmd wowlan_config_cmd
= {};
969 ret
= iwl_mvm_switch_to_d3(mvm
);
973 /* rfkill release can be either for wowlan or netdetect */
974 if (wowlan
->rfkill_release
)
975 wowlan_config_cmd
.wakeup_filter
|=
976 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT
);
978 ret
= iwl_mvm_send_cmd_pdu(mvm
, WOWLAN_CONFIGURATION
, 0,
979 sizeof(wowlan_config_cmd
),
984 ret
= iwl_mvm_scan_offload_start(mvm
, vif
, nd_config
, &mvm
->nd_ies
);
988 if (WARN_ON(mvm
->nd_match_sets
|| mvm
->nd_channels
))
991 /* save the sched scan matchsets... */
992 if (nd_config
->n_match_sets
) {
993 mvm
->nd_match_sets
= kmemdup(nd_config
->match_sets
,
994 sizeof(*nd_config
->match_sets
) *
995 nd_config
->n_match_sets
,
997 if (mvm
->nd_match_sets
)
998 mvm
->n_nd_match_sets
= nd_config
->n_match_sets
;
1001 /* ...and the sched scan channels for later reporting */
1002 mvm
->nd_channels
= kmemdup(nd_config
->channels
,
1003 sizeof(*nd_config
->channels
) *
1004 nd_config
->n_channels
,
1006 if (mvm
->nd_channels
)
1007 mvm
->n_nd_channels
= nd_config
->n_channels
;
1012 static void iwl_mvm_free_nd(struct iwl_mvm
*mvm
)
1014 kfree(mvm
->nd_match_sets
);
1015 mvm
->nd_match_sets
= NULL
;
1016 mvm
->n_nd_match_sets
= 0;
1017 kfree(mvm
->nd_channels
);
1018 mvm
->nd_channels
= NULL
;
1019 mvm
->n_nd_channels
= 0;
1022 static int __iwl_mvm_suspend(struct ieee80211_hw
*hw
,
1023 struct cfg80211_wowlan
*wowlan
,
1026 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1027 struct ieee80211_vif
*vif
= NULL
;
1028 struct iwl_mvm_vif
*mvmvif
= NULL
;
1029 struct ieee80211_sta
*ap_sta
= NULL
;
1030 struct iwl_d3_manager_config d3_cfg_cmd_data
= {
1032 * Program the minimum sleep time to 10 seconds, as many
1033 * platforms have issues processing a wakeup signal while
1034 * still being in the process of suspending.
1036 .min_sleep_time
= cpu_to_le32(10 * 1000 * 1000),
1038 struct iwl_host_cmd d3_cfg_cmd
= {
1039 .id
= D3_CONFIG_CMD
,
1040 .flags
= CMD_WANT_SKB
,
1041 .data
[0] = &d3_cfg_cmd_data
,
1042 .len
[0] = sizeof(d3_cfg_cmd_data
),
1045 int len __maybe_unused
;
1049 * mac80211 shouldn't get here, but for D3 test
1050 * it doesn't warrant a warning
1056 mutex_lock(&mvm
->mutex
);
1058 vif
= iwl_mvm_get_bss_vif(mvm
);
1059 if (IS_ERR_OR_NULL(vif
)) {
1064 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1066 if (mvmvif
->ap_sta_id
== IWL_MVM_STATION_COUNT
) {
1067 /* if we're not associated, this must be netdetect */
1068 if (!wowlan
->nd_config
&& !mvm
->nd_config
) {
1073 ret
= iwl_mvm_netdetect_config(
1074 mvm
, wowlan
, wowlan
->nd_config
?: mvm
->nd_config
, vif
);
1078 mvm
->net_detect
= true;
1080 struct iwl_wowlan_config_cmd wowlan_config_cmd
= {};
1082 ap_sta
= rcu_dereference_protected(
1083 mvm
->fw_id_to_mac_id
[mvmvif
->ap_sta_id
],
1084 lockdep_is_held(&mvm
->mutex
));
1085 if (IS_ERR_OR_NULL(ap_sta
)) {
1090 ret
= iwl_mvm_get_wowlan_config(mvm
, wowlan
, &wowlan_config_cmd
,
1091 vif
, mvmvif
, ap_sta
);
1094 ret
= iwl_mvm_wowlan_config(mvm
, wowlan
, &wowlan_config_cmd
,
1095 vif
, mvmvif
, ap_sta
);
1099 mvm
->net_detect
= false;
1102 ret
= iwl_mvm_power_update_device(mvm
);
1106 ret
= iwl_mvm_power_update_mac(mvm
);
1110 #ifdef CONFIG_IWLWIFI_DEBUGFS
1111 if (mvm
->d3_wake_sysassert
)
1112 d3_cfg_cmd_data
.wakeup_flags
|=
1113 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR
);
1116 /* must be last -- this switches firmware state */
1117 ret
= iwl_mvm_send_cmd(mvm
, &d3_cfg_cmd
);
1120 #ifdef CONFIG_IWLWIFI_DEBUGFS
1121 len
= iwl_rx_packet_payload_len(d3_cfg_cmd
.resp_pkt
);
1122 if (len
>= sizeof(u32
)) {
1123 mvm
->d3_test_pme_ptr
=
1124 le32_to_cpup((__le32
*)d3_cfg_cmd
.resp_pkt
->data
);
1127 iwl_free_resp(&d3_cfg_cmd
);
1129 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1131 iwl_trans_d3_suspend(mvm
->trans
, test
);
1134 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1135 ieee80211_restart_hw(mvm
->hw
);
1136 iwl_mvm_free_nd(mvm
);
1139 mutex_unlock(&mvm
->mutex
);
1144 static int iwl_mvm_enter_d0i3_sync(struct iwl_mvm
*mvm
)
1146 struct iwl_notification_wait wait_d3
;
1147 static const u8 d3_notif
[] = { D3_CONFIG_CMD
};
1150 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_d3
,
1151 d3_notif
, ARRAY_SIZE(d3_notif
),
1154 ret
= iwl_mvm_enter_d0i3(mvm
->hw
->priv
);
1158 ret
= iwl_wait_notification(&mvm
->notif_wait
, &wait_d3
, HZ
);
1163 iwl_remove_notification(&mvm
->notif_wait
, &wait_d3
);
1167 int iwl_mvm_suspend(struct ieee80211_hw
*hw
, struct cfg80211_wowlan
*wowlan
)
1169 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1171 iwl_trans_suspend(mvm
->trans
);
1173 /* 'any' trigger means d0i3 usage */
1174 if (mvm
->trans
->d0i3_mode
== IWL_D0I3_MODE_ON_SUSPEND
) {
1175 int ret
= iwl_mvm_enter_d0i3_sync(mvm
);
1181 mutex_lock(&mvm
->d0i3_suspend_mutex
);
1182 __set_bit(D0I3_DEFER_WAKEUP
, &mvm
->d0i3_suspend_flags
);
1183 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
1187 return __iwl_mvm_suspend(hw
, wowlan
, false);
1190 /* converted data from the different status responses */
1191 struct iwl_wowlan_status_data
{
1195 u32 wake_packet_length
;
1196 u32 wake_packet_bufsize
;
1197 const u8
*wake_packet
;
1200 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm
*mvm
,
1201 struct ieee80211_vif
*vif
,
1202 struct iwl_wowlan_status_data
*status
)
1204 struct sk_buff
*pkt
= NULL
;
1205 struct cfg80211_wowlan_wakeup wakeup
= {
1208 struct cfg80211_wowlan_wakeup
*wakeup_report
= &wakeup
;
1209 u32 reasons
= status
->wakeup_reasons
;
1211 if (reasons
== IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS
) {
1212 wakeup_report
= NULL
;
1216 if (reasons
& IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET
)
1217 wakeup
.magic_pkt
= true;
1219 if (reasons
& IWL_WOWLAN_WAKEUP_BY_PATTERN
)
1220 wakeup
.pattern_idx
=
1221 status
->pattern_number
;
1223 if (reasons
& (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON
|
1224 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH
))
1225 wakeup
.disconnect
= true;
1227 if (reasons
& IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE
)
1228 wakeup
.gtk_rekey_failure
= true;
1230 if (reasons
& IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED
)
1231 wakeup
.rfkill_release
= true;
1233 if (reasons
& IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST
)
1234 wakeup
.eap_identity_req
= true;
1236 if (reasons
& IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE
)
1237 wakeup
.four_way_handshake
= true;
1239 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS
)
1240 wakeup
.tcp_connlost
= true;
1242 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE
)
1243 wakeup
.tcp_nomoretokens
= true;
1245 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET
)
1246 wakeup
.tcp_match
= true;
1248 if (status
->wake_packet_bufsize
) {
1249 int pktsize
= status
->wake_packet_bufsize
;
1250 int pktlen
= status
->wake_packet_length
;
1251 const u8
*pktdata
= status
->wake_packet
;
1252 struct ieee80211_hdr
*hdr
= (void *)pktdata
;
1253 int truncated
= pktlen
- pktsize
;
1255 /* this would be a firmware bug */
1256 if (WARN_ON_ONCE(truncated
< 0))
1259 if (ieee80211_is_data(hdr
->frame_control
)) {
1260 int hdrlen
= ieee80211_hdrlen(hdr
->frame_control
);
1261 int ivlen
= 0, icvlen
= 4; /* also FCS */
1263 pkt
= alloc_skb(pktsize
, GFP_KERNEL
);
1267 memcpy(skb_put(pkt
, hdrlen
), pktdata
, hdrlen
);
1271 if (ieee80211_has_protected(hdr
->frame_control
)) {
1273 * This is unlocked and using gtk_i(c)vlen,
1274 * but since everything is under RTNL still
1275 * that's not really a problem - changing
1276 * it would be difficult.
1278 if (is_multicast_ether_addr(hdr
->addr1
)) {
1279 ivlen
= mvm
->gtk_ivlen
;
1280 icvlen
+= mvm
->gtk_icvlen
;
1282 ivlen
= mvm
->ptk_ivlen
;
1283 icvlen
+= mvm
->ptk_icvlen
;
1287 /* if truncated, FCS/ICV is (partially) gone */
1288 if (truncated
>= icvlen
) {
1290 truncated
-= icvlen
;
1292 icvlen
-= truncated
;
1296 pktsize
-= ivlen
+ icvlen
;
1299 memcpy(skb_put(pkt
, pktsize
), pktdata
, pktsize
);
1301 if (ieee80211_data_to_8023(pkt
, vif
->addr
, vif
->type
))
1303 wakeup
.packet
= pkt
->data
;
1304 wakeup
.packet_present_len
= pkt
->len
;
1305 wakeup
.packet_len
= pkt
->len
- truncated
;
1306 wakeup
.packet_80211
= false;
1310 if (truncated
>= 4) {
1314 fcslen
-= truncated
;
1318 wakeup
.packet
= status
->wake_packet
;
1319 wakeup
.packet_present_len
= pktsize
;
1320 wakeup
.packet_len
= pktlen
- truncated
;
1321 wakeup
.packet_80211
= true;
1326 ieee80211_report_wowlan_wakeup(vif
, wakeup_report
, GFP_KERNEL
);
1330 static void iwl_mvm_aes_sc_to_seq(struct aes_sc
*sc
,
1331 struct ieee80211_key_seq
*seq
)
1335 pn
= le64_to_cpu(sc
->pn
);
1336 seq
->ccmp
.pn
[0] = pn
>> 40;
1337 seq
->ccmp
.pn
[1] = pn
>> 32;
1338 seq
->ccmp
.pn
[2] = pn
>> 24;
1339 seq
->ccmp
.pn
[3] = pn
>> 16;
1340 seq
->ccmp
.pn
[4] = pn
>> 8;
1341 seq
->ccmp
.pn
[5] = pn
;
1344 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc
*sc
,
1345 struct ieee80211_key_seq
*seq
)
1347 seq
->tkip
.iv32
= le32_to_cpu(sc
->iv32
);
1348 seq
->tkip
.iv16
= le16_to_cpu(sc
->iv16
);
1351 static void iwl_mvm_set_aes_rx_seq(struct aes_sc
*scs
,
1352 struct ieee80211_key_conf
*key
)
1356 BUILD_BUG_ON(IWL_NUM_RSC
!= IEEE80211_NUM_TIDS
);
1358 for (tid
= 0; tid
< IWL_NUM_RSC
; tid
++) {
1359 struct ieee80211_key_seq seq
= {};
1361 iwl_mvm_aes_sc_to_seq(&scs
[tid
], &seq
);
1362 ieee80211_set_key_rx_seq(key
, tid
, &seq
);
1366 static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc
*scs
,
1367 struct ieee80211_key_conf
*key
)
1371 BUILD_BUG_ON(IWL_NUM_RSC
!= IEEE80211_NUM_TIDS
);
1373 for (tid
= 0; tid
< IWL_NUM_RSC
; tid
++) {
1374 struct ieee80211_key_seq seq
= {};
1376 iwl_mvm_tkip_sc_to_seq(&scs
[tid
], &seq
);
1377 ieee80211_set_key_rx_seq(key
, tid
, &seq
);
1381 static void iwl_mvm_set_key_rx_seq(struct ieee80211_key_conf
*key
,
1382 struct iwl_wowlan_status
*status
)
1384 union iwl_all_tsc_rsc
*rsc
= &status
->gtk
.rsc
.all_tsc_rsc
;
1386 switch (key
->cipher
) {
1387 case WLAN_CIPHER_SUITE_CCMP
:
1388 iwl_mvm_set_aes_rx_seq(rsc
->aes
.multicast_rsc
, key
);
1390 case WLAN_CIPHER_SUITE_TKIP
:
1391 iwl_mvm_set_tkip_rx_seq(rsc
->tkip
.multicast_rsc
, key
);
1398 struct iwl_mvm_d3_gtk_iter_data
{
1399 struct iwl_wowlan_status
*status
;
1402 bool find_phase
, unhandled_cipher
;
1406 static void iwl_mvm_d3_update_gtks(struct ieee80211_hw
*hw
,
1407 struct ieee80211_vif
*vif
,
1408 struct ieee80211_sta
*sta
,
1409 struct ieee80211_key_conf
*key
,
1412 struct iwl_mvm_d3_gtk_iter_data
*data
= _data
;
1414 if (data
->unhandled_cipher
)
1417 switch (key
->cipher
) {
1418 case WLAN_CIPHER_SUITE_WEP40
:
1419 case WLAN_CIPHER_SUITE_WEP104
:
1420 /* ignore WEP completely, nothing to do */
1422 case WLAN_CIPHER_SUITE_CCMP
:
1423 case WLAN_CIPHER_SUITE_TKIP
:
1424 /* we support these */
1427 /* everything else (even CMAC for MFP) - disconnect from AP */
1428 data
->unhandled_cipher
= true;
1435 * pairwise key - update sequence counters only;
1436 * note that this assumes no TDLS sessions are active
1439 struct ieee80211_key_seq seq
= {};
1440 union iwl_all_tsc_rsc
*sc
= &data
->status
->gtk
.rsc
.all_tsc_rsc
;
1442 if (data
->find_phase
)
1445 switch (key
->cipher
) {
1446 case WLAN_CIPHER_SUITE_CCMP
:
1447 iwl_mvm_aes_sc_to_seq(&sc
->aes
.tsc
, &seq
);
1448 iwl_mvm_set_aes_rx_seq(sc
->aes
.unicast_rsc
, key
);
1450 case WLAN_CIPHER_SUITE_TKIP
:
1451 iwl_mvm_tkip_sc_to_seq(&sc
->tkip
.tsc
, &seq
);
1452 iwl_mvm_set_tkip_rx_seq(sc
->tkip
.unicast_rsc
, key
);
1455 ieee80211_set_key_tx_seq(key
, &seq
);
1457 /* that's it for this key */
1461 if (data
->find_phase
) {
1462 data
->last_gtk
= key
;
1463 data
->cipher
= key
->cipher
;
1467 if (data
->status
->num_of_gtk_rekeys
)
1468 ieee80211_remove_key(key
);
1469 else if (data
->last_gtk
== key
)
1470 iwl_mvm_set_key_rx_seq(key
, data
->status
);
1473 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm
*mvm
,
1474 struct ieee80211_vif
*vif
,
1475 struct iwl_wowlan_status
*status
)
1477 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1478 struct iwl_mvm_d3_gtk_iter_data gtkdata
= {
1481 u32 disconnection_reasons
=
1482 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON
|
1483 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH
;
1485 if (!status
|| !vif
->bss_conf
.bssid
)
1488 if (le32_to_cpu(status
->wakeup_reasons
) & disconnection_reasons
)
1491 /* find last GTK that we used initially, if any */
1492 gtkdata
.find_phase
= true;
1493 ieee80211_iter_keys(mvm
->hw
, vif
,
1494 iwl_mvm_d3_update_gtks
, >kdata
);
1495 /* not trying to keep connections with MFP/unhandled ciphers */
1496 if (gtkdata
.unhandled_cipher
)
1498 if (!gtkdata
.num_keys
)
1500 if (!gtkdata
.last_gtk
)
1504 * invalidate all other GTKs that might still exist and update
1505 * the one that we used
1507 gtkdata
.find_phase
= false;
1508 ieee80211_iter_keys(mvm
->hw
, vif
,
1509 iwl_mvm_d3_update_gtks
, >kdata
);
1511 if (status
->num_of_gtk_rekeys
) {
1512 struct ieee80211_key_conf
*key
;
1514 struct ieee80211_key_conf conf
;
1517 .conf
.cipher
= gtkdata
.cipher
,
1518 .conf
.keyidx
= status
->gtk
.key_index
,
1521 switch (gtkdata
.cipher
) {
1522 case WLAN_CIPHER_SUITE_CCMP
:
1523 conf
.conf
.keylen
= WLAN_KEY_LEN_CCMP
;
1524 memcpy(conf
.conf
.key
, status
->gtk
.decrypt_key
,
1527 case WLAN_CIPHER_SUITE_TKIP
:
1528 conf
.conf
.keylen
= WLAN_KEY_LEN_TKIP
;
1529 memcpy(conf
.conf
.key
, status
->gtk
.decrypt_key
, 16);
1530 /* leave TX MIC key zeroed, we don't use it anyway */
1531 memcpy(conf
.conf
.key
+
1532 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
,
1533 status
->gtk
.tkip_mic_key
, 8);
1537 key
= ieee80211_gtk_rekey_add(vif
, &conf
.conf
);
1540 iwl_mvm_set_key_rx_seq(key
, status
);
1543 if (status
->num_of_gtk_rekeys
) {
1545 cpu_to_be64(le64_to_cpu(status
->replay_ctr
));
1546 ieee80211_gtk_rekey_notify(vif
, vif
->bss_conf
.bssid
,
1547 (void *)&replay_ctr
, GFP_KERNEL
);
1551 mvmvif
->seqno_valid
= true;
1552 /* +0x10 because the set API expects next-to-use, not last-used */
1553 mvmvif
->seqno
= le16_to_cpu(status
->non_qos_seq_ctr
) + 0x10;
1558 static struct iwl_wowlan_status
*
1559 iwl_mvm_get_wakeup_status(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
1561 u32 base
= mvm
->error_event_table
;
1562 struct error_table_start
{
1563 /* cf. struct iwl_error_event_table */
1567 struct iwl_host_cmd cmd
= {
1568 .id
= WOWLAN_GET_STATUSES
,
1569 .flags
= CMD_WANT_SKB
,
1571 struct iwl_wowlan_status
*status
, *fw_status
;
1572 int ret
, len
, status_size
;
1574 iwl_trans_read_mem_bytes(mvm
->trans
, base
,
1575 &err_info
, sizeof(err_info
));
1577 if (err_info
.valid
) {
1578 IWL_INFO(mvm
, "error table is valid (%d) with error (%d)\n",
1579 err_info
.valid
, err_info
.error_id
);
1580 if (err_info
.error_id
== RF_KILL_INDICATOR_FOR_WOWLAN
) {
1581 struct cfg80211_wowlan_wakeup wakeup
= {
1582 .rfkill_release
= true,
1584 ieee80211_report_wowlan_wakeup(vif
, &wakeup
,
1587 return ERR_PTR(-EIO
);
1590 /* only for tracing for now */
1591 ret
= iwl_mvm_send_cmd_pdu(mvm
, OFFLOADS_QUERY_CMD
, 0, 0, NULL
);
1593 IWL_ERR(mvm
, "failed to query offload statistics (%d)\n", ret
);
1595 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
1597 IWL_ERR(mvm
, "failed to query status (%d)\n", ret
);
1598 return ERR_PTR(ret
);
1601 /* RF-kill already asserted again... */
1602 if (!cmd
.resp_pkt
) {
1603 fw_status
= ERR_PTR(-ERFKILL
);
1607 status_size
= sizeof(*fw_status
);
1609 len
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
1610 if (len
< status_size
) {
1611 IWL_ERR(mvm
, "Invalid WoWLAN status response!\n");
1612 fw_status
= ERR_PTR(-EIO
);
1616 status
= (void *)cmd
.resp_pkt
->data
;
1617 if (len
!= (status_size
+
1618 ALIGN(le32_to_cpu(status
->wake_packet_bufsize
), 4))) {
1619 IWL_ERR(mvm
, "Invalid WoWLAN status response!\n");
1620 fw_status
= ERR_PTR(-EIO
);
1624 fw_status
= kmemdup(status
, len
, GFP_KERNEL
);
1627 iwl_free_resp(&cmd
);
1631 /* releases the MVM mutex */
1632 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm
*mvm
,
1633 struct ieee80211_vif
*vif
)
1635 struct iwl_wowlan_status_data status
;
1636 struct iwl_wowlan_status
*fw_status
;
1639 struct ieee80211_sta
*ap_sta
;
1640 struct iwl_mvm_sta
*mvm_ap_sta
;
1642 fw_status
= iwl_mvm_get_wakeup_status(mvm
, vif
);
1643 if (IS_ERR_OR_NULL(fw_status
))
1646 status
.pattern_number
= le16_to_cpu(fw_status
->pattern_number
);
1647 for (i
= 0; i
< 8; i
++)
1648 status
.qos_seq_ctr
[i
] =
1649 le16_to_cpu(fw_status
->qos_seq_ctr
[i
]);
1650 status
.wakeup_reasons
= le32_to_cpu(fw_status
->wakeup_reasons
);
1651 status
.wake_packet_length
=
1652 le32_to_cpu(fw_status
->wake_packet_length
);
1653 status
.wake_packet_bufsize
=
1654 le32_to_cpu(fw_status
->wake_packet_bufsize
);
1655 status
.wake_packet
= fw_status
->wake_packet
;
1657 /* still at hard-coded place 0 for D3 image */
1658 ap_sta
= rcu_dereference_protected(
1659 mvm
->fw_id_to_mac_id
[0],
1660 lockdep_is_held(&mvm
->mutex
));
1661 if (IS_ERR_OR_NULL(ap_sta
))
1664 mvm_ap_sta
= iwl_mvm_sta_from_mac80211(ap_sta
);
1665 for (i
= 0; i
< IWL_MAX_TID_COUNT
; i
++) {
1666 u16 seq
= status
.qos_seq_ctr
[i
];
1667 /* firmware stores last-used value, we store next value */
1669 mvm_ap_sta
->tid_data
[i
].seq_number
= seq
;
1672 /* now we have all the data we need, unlock to avoid mac80211 issues */
1673 mutex_unlock(&mvm
->mutex
);
1675 iwl_mvm_report_wakeup_reasons(mvm
, vif
, &status
);
1677 keep
= iwl_mvm_setup_connection_keep(mvm
, vif
, fw_status
);
1685 mutex_unlock(&mvm
->mutex
);
1689 struct iwl_mvm_nd_query_results
{
1690 u32 matched_profiles
;
1691 struct iwl_scan_offload_profile_match matches
[IWL_SCAN_MAX_PROFILES
];
1695 iwl_mvm_netdetect_query_results(struct iwl_mvm
*mvm
,
1696 struct iwl_mvm_nd_query_results
*results
)
1698 struct iwl_scan_offload_profiles_query
*query
;
1699 struct iwl_host_cmd cmd
= {
1700 .id
= SCAN_OFFLOAD_PROFILES_QUERY_CMD
,
1701 .flags
= CMD_WANT_SKB
,
1705 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
1707 IWL_ERR(mvm
, "failed to query matched profiles (%d)\n", ret
);
1711 /* RF-kill already asserted again... */
1712 if (!cmd
.resp_pkt
) {
1717 len
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
1718 if (len
< sizeof(*query
)) {
1719 IWL_ERR(mvm
, "Invalid scan offload profiles query response!\n");
1724 query
= (void *)cmd
.resp_pkt
->data
;
1726 results
->matched_profiles
= le32_to_cpu(query
->matched_profiles
);
1727 memcpy(results
->matches
, query
->matches
, sizeof(results
->matches
));
1729 #ifdef CPTCFG_IWLWIFI_DEBUGFS
1730 mvm
->last_netdetect_scans
= le32_to_cpu(query
->n_scans_done
);
1734 iwl_free_resp(&cmd
);
1738 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm
*mvm
,
1739 struct ieee80211_vif
*vif
)
1741 struct cfg80211_wowlan_nd_info
*net_detect
= NULL
;
1742 struct cfg80211_wowlan_wakeup wakeup
= {
1745 struct cfg80211_wowlan_wakeup
*wakeup_report
= &wakeup
;
1746 struct iwl_mvm_nd_query_results query
;
1747 struct iwl_wowlan_status
*fw_status
;
1748 unsigned long matched_profiles
;
1750 int i
, j
, n_matches
, ret
;
1752 fw_status
= iwl_mvm_get_wakeup_status(mvm
, vif
);
1753 if (!IS_ERR_OR_NULL(fw_status
))
1754 reasons
= le32_to_cpu(fw_status
->wakeup_reasons
);
1756 if (reasons
& IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED
)
1757 wakeup
.rfkill_release
= true;
1759 if (reasons
!= IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS
)
1762 ret
= iwl_mvm_netdetect_query_results(mvm
, &query
);
1763 if (ret
|| !query
.matched_profiles
) {
1764 wakeup_report
= NULL
;
1768 matched_profiles
= query
.matched_profiles
;
1769 if (mvm
->n_nd_match_sets
) {
1770 n_matches
= hweight_long(matched_profiles
);
1772 IWL_ERR(mvm
, "no net detect match information available\n");
1776 net_detect
= kzalloc(sizeof(*net_detect
) +
1777 (n_matches
* sizeof(net_detect
->matches
[0])),
1779 if (!net_detect
|| !n_matches
)
1782 for_each_set_bit(i
, &matched_profiles
, mvm
->n_nd_match_sets
) {
1783 struct iwl_scan_offload_profile_match
*fw_match
;
1784 struct cfg80211_wowlan_nd_match
*match
;
1787 fw_match
= &query
.matches
[i
];
1789 for (j
= 0; j
< SCAN_OFFLOAD_MATCHING_CHANNELS_LEN
; j
++)
1790 n_channels
+= hweight8(fw_match
->matching_channels
[j
]);
1792 match
= kzalloc(sizeof(*match
) +
1793 (n_channels
* sizeof(*match
->channels
)),
1798 net_detect
->matches
[net_detect
->n_matches
++] = match
;
1800 match
->ssid
.ssid_len
= mvm
->nd_match_sets
[i
].ssid
.ssid_len
;
1801 memcpy(match
->ssid
.ssid
, mvm
->nd_match_sets
[i
].ssid
.ssid
,
1802 match
->ssid
.ssid_len
);
1804 if (mvm
->n_nd_channels
< n_channels
)
1807 for (j
= 0; j
< SCAN_OFFLOAD_MATCHING_CHANNELS_LEN
* 8; j
++)
1808 if (fw_match
->matching_channels
[j
/ 8] & (BIT(j
% 8)))
1809 match
->channels
[match
->n_channels
++] =
1810 mvm
->nd_channels
[j
]->center_freq
;
1814 wakeup
.net_detect
= net_detect
;
1816 iwl_mvm_free_nd(mvm
);
1818 mutex_unlock(&mvm
->mutex
);
1819 ieee80211_report_wowlan_wakeup(vif
, wakeup_report
, GFP_KERNEL
);
1822 for (i
= 0; i
< net_detect
->n_matches
; i
++)
1823 kfree(net_detect
->matches
[i
]);
1828 static void iwl_mvm_read_d3_sram(struct iwl_mvm
*mvm
)
1830 #ifdef CONFIG_IWLWIFI_DEBUGFS
1831 const struct fw_img
*img
= &mvm
->fw
->img
[IWL_UCODE_WOWLAN
];
1832 u32 len
= img
->sec
[IWL_UCODE_SECTION_DATA
].len
;
1833 u32 offs
= img
->sec
[IWL_UCODE_SECTION_DATA
].offset
;
1835 if (!mvm
->store_d3_resume_sram
)
1838 if (!mvm
->d3_resume_sram
) {
1839 mvm
->d3_resume_sram
= kzalloc(len
, GFP_KERNEL
);
1840 if (!mvm
->d3_resume_sram
)
1844 iwl_trans_read_mem_bytes(mvm
->trans
, offs
, mvm
->d3_resume_sram
, len
);
1848 static void iwl_mvm_d3_disconnect_iter(void *data
, u8
*mac
,
1849 struct ieee80211_vif
*vif
)
1851 /* skip the one we keep connection on */
1855 if (vif
->type
== NL80211_IFTYPE_STATION
)
1856 ieee80211_resume_disconnect(vif
);
1859 static int __iwl_mvm_resume(struct iwl_mvm
*mvm
, bool test
)
1861 struct ieee80211_vif
*vif
= NULL
;
1863 enum iwl_d3_status d3_status
;
1866 mutex_lock(&mvm
->mutex
);
1868 /* get the BSS vif pointer again */
1869 vif
= iwl_mvm_get_bss_vif(mvm
);
1870 if (IS_ERR_OR_NULL(vif
))
1873 ret
= iwl_trans_d3_resume(mvm
->trans
, &d3_status
, test
);
1877 if (d3_status
!= IWL_D3_STATUS_ALIVE
) {
1878 IWL_INFO(mvm
, "Device was reset during suspend\n");
1882 /* query SRAM first in case we want event logging */
1883 iwl_mvm_read_d3_sram(mvm
);
1886 * Query the current location and source from the D3 firmware so we
1887 * can play it back when we re-intiailize the D0 firmware
1889 iwl_mvm_update_changed_regdom(mvm
);
1891 if (mvm
->net_detect
) {
1892 iwl_mvm_query_netdetect_reasons(mvm
, vif
);
1893 /* has unlocked the mutex, so skip that */
1896 keep
= iwl_mvm_query_wakeup_reasons(mvm
, vif
);
1897 #ifdef CONFIG_IWLWIFI_DEBUGFS
1899 mvm
->keep_vif
= vif
;
1901 /* has unlocked the mutex, so skip that */
1906 mutex_unlock(&mvm
->mutex
);
1910 ieee80211_iterate_active_interfaces_rtnl(mvm
->hw
,
1911 IEEE80211_IFACE_ITER_NORMAL
,
1912 iwl_mvm_d3_disconnect_iter
, keep
? vif
: NULL
);
1915 /* return 1 to reconfigure the device */
1916 set_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1917 set_bit(IWL_MVM_STATUS_D3_RECONFIG
, &mvm
->status
);
1921 int iwl_mvm_resume(struct ieee80211_hw
*hw
)
1923 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1925 iwl_trans_resume(mvm
->trans
);
1927 if (mvm
->hw
->wiphy
->wowlan_config
->any
) {
1928 /* 'any' trigger means d0i3 usage */
1929 if (mvm
->trans
->d0i3_mode
== IWL_D0I3_MODE_ON_SUSPEND
) {
1930 int ret
= iwl_mvm_exit_d0i3(hw
->priv
);
1935 * d0i3 exit will be deferred until reconfig_complete.
1936 * make sure there we are out of d0i3.
1942 return __iwl_mvm_resume(mvm
, false);
1945 void iwl_mvm_set_wakeup(struct ieee80211_hw
*hw
, bool enabled
)
1947 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1949 device_set_wakeup_enable(mvm
->trans
->dev
, enabled
);
1952 #ifdef CONFIG_IWLWIFI_DEBUGFS
1953 static int iwl_mvm_d3_test_open(struct inode
*inode
, struct file
*file
)
1955 struct iwl_mvm
*mvm
= inode
->i_private
;
1958 if (mvm
->d3_test_active
)
1961 file
->private_data
= inode
->i_private
;
1963 ieee80211_stop_queues(mvm
->hw
);
1966 /* start pseudo D3 */
1968 err
= __iwl_mvm_suspend(mvm
->hw
, mvm
->hw
->wiphy
->wowlan_config
, true);
1973 ieee80211_wake_queues(mvm
->hw
);
1976 mvm
->d3_test_active
= true;
1977 mvm
->keep_vif
= NULL
;
1981 static ssize_t
iwl_mvm_d3_test_read(struct file
*file
, char __user
*user_buf
,
1982 size_t count
, loff_t
*ppos
)
1984 struct iwl_mvm
*mvm
= file
->private_data
;
1988 /* read pme_ptr if available */
1989 if (mvm
->d3_test_pme_ptr
) {
1990 pme_asserted
= iwl_trans_read_mem32(mvm
->trans
,
1991 mvm
->d3_test_pme_ptr
);
1996 if (msleep_interruptible(100))
2003 static void iwl_mvm_d3_test_disconn_work_iter(void *_data
, u8
*mac
,
2004 struct ieee80211_vif
*vif
)
2006 /* skip the one we keep connection on */
2010 if (vif
->type
== NL80211_IFTYPE_STATION
)
2011 ieee80211_connection_loss(vif
);
2014 static int iwl_mvm_d3_test_release(struct inode
*inode
, struct file
*file
)
2016 struct iwl_mvm
*mvm
= inode
->i_private
;
2017 int remaining_time
= 10;
2019 mvm
->d3_test_active
= false;
2021 __iwl_mvm_resume(mvm
, true);
2023 iwl_abort_notification_waits(&mvm
->notif_wait
);
2024 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
2025 ieee80211_restart_hw(mvm
->hw
);
2027 /* wait for restart and disconnect all interfaces */
2028 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2029 remaining_time
> 0) {
2034 if (remaining_time
== 0)
2035 IWL_ERR(mvm
, "Timed out waiting for HW restart to finish!\n");
2037 ieee80211_iterate_active_interfaces_atomic(
2038 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
2039 iwl_mvm_d3_test_disconn_work_iter
, mvm
->keep_vif
);
2041 ieee80211_wake_queues(mvm
->hw
);
2046 const struct file_operations iwl_dbgfs_d3_test_ops
= {
2047 .llseek
= no_llseek
,
2048 .open
= iwl_mvm_d3_test_open
,
2049 .read
= iwl_mvm_d3_test_read
,
2050 .release
= iwl_mvm_d3_test_release
,