1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
11 * Copyright(c) 2018 - 2019 Intel Corporation
13 * This program is free software; you can redistribute it and/or modify
14 * it under the terms of version 2 of the GNU General Public License as
15 * published by the Free Software Foundation.
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
22 * The full GNU General Public License is included in this distribution
23 * in the file called COPYING.
25 * Contact Information:
26 * Intel Linux Wireless <linuxwifi@intel.com>
27 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
31 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
32 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
33 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
34 * Copyright(c) 2018 - 2019 Intel Corporation
35 * All rights reserved.
37 * Redistribution and use in source and binary forms, with or without
38 * modification, are permitted provided that the following conditions
41 * * Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * * Redistributions in binary form must reproduce the above copyright
44 * notice, this list of conditions and the following disclaimer in
45 * the documentation and/or other materials provided with the
47 * * Neither the name Intel Corporation nor the names of its
48 * contributors may be used to endorse or promote products derived
49 * from this software without specific prior written permission.
51 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
52 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
53 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
54 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
55 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
56 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
57 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
58 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
59 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
60 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
61 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 *****************************************************************************/
65 #include <linux/etherdevice.h>
68 #include <net/cfg80211.h>
71 #include <net/addrconf.h>
72 #include "iwl-modparams.h"
76 void iwl_mvm_set_rekey_data(struct ieee80211_hw
*hw
,
77 struct ieee80211_vif
*vif
,
78 struct cfg80211_gtk_rekey_data
*data
)
80 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
81 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
83 if (iwlwifi_mod_params
.swcrypto
)
86 mutex_lock(&mvm
->mutex
);
88 memcpy(mvmvif
->rekey_data
.kek
, data
->kek
, NL80211_KEK_LEN
);
89 memcpy(mvmvif
->rekey_data
.kck
, data
->kck
, NL80211_KCK_LEN
);
90 mvmvif
->rekey_data
.replay_ctr
=
91 cpu_to_le64(be64_to_cpup((__be64
*)data
->replay_ctr
));
92 mvmvif
->rekey_data
.valid
= true;
94 mutex_unlock(&mvm
->mutex
);
97 #if IS_ENABLED(CONFIG_IPV6)
98 void iwl_mvm_ipv6_addr_change(struct ieee80211_hw
*hw
,
99 struct ieee80211_vif
*vif
,
100 struct inet6_dev
*idev
)
102 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
103 struct inet6_ifaddr
*ifa
;
106 memset(mvmvif
->tentative_addrs
, 0, sizeof(mvmvif
->tentative_addrs
));
108 read_lock_bh(&idev
->lock
);
109 list_for_each_entry(ifa
, &idev
->addr_list
, if_list
) {
110 mvmvif
->target_ipv6_addrs
[idx
] = ifa
->addr
;
111 if (ifa
->flags
& IFA_F_TENTATIVE
)
112 __set_bit(idx
, mvmvif
->tentative_addrs
);
114 if (idx
>= IWL_PROTO_OFFLOAD_NUM_IPV6_ADDRS_MAX
)
117 read_unlock_bh(&idev
->lock
);
119 mvmvif
->num_target_ipv6_addrs
= idx
;
123 void iwl_mvm_set_default_unicast_key(struct ieee80211_hw
*hw
,
124 struct ieee80211_vif
*vif
, int idx
)
126 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
128 mvmvif
->tx_key_idx
= idx
;
131 static void iwl_mvm_convert_p1k(u16
*p1k
, __le16
*out
)
135 for (i
= 0; i
< IWL_P1K_SIZE
; i
++)
136 out
[i
] = cpu_to_le16(p1k
[i
]);
139 static const u8
*iwl_mvm_find_max_pn(struct ieee80211_key_conf
*key
,
140 struct iwl_mvm_key_pn
*ptk_pn
,
141 struct ieee80211_key_seq
*seq
,
144 const u8
*ret
= seq
->ccmp
.pn
;
147 /* get the PN from mac80211, used on the default queue */
148 ieee80211_get_key_rx_seq(key
, tid
, seq
);
150 /* and use the internal data for the other queues */
151 for (i
= 1; i
< queues
; i
++) {
152 const u8
*tmp
= ptk_pn
->q
[i
].pn
[tid
];
154 if (memcmp(ret
, tmp
, IEEE80211_CCMP_PN_LEN
) <= 0)
161 struct wowlan_key_data
{
162 struct iwl_wowlan_rsc_tsc_params_cmd
*rsc_tsc
;
163 struct iwl_wowlan_tkip_params_cmd
*tkip
;
164 bool error
, use_rsc_tsc
, use_tkip
, configure_keys
;
168 static void iwl_mvm_wowlan_program_keys(struct ieee80211_hw
*hw
,
169 struct ieee80211_vif
*vif
,
170 struct ieee80211_sta
*sta
,
171 struct ieee80211_key_conf
*key
,
174 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
175 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
176 struct wowlan_key_data
*data
= _data
;
177 struct aes_sc
*aes_sc
, *aes_tx_sc
= NULL
;
178 struct tkip_sc
*tkip_sc
, *tkip_tx_sc
= NULL
;
179 struct iwl_p1k_cache
*rx_p1ks
;
181 struct ieee80211_key_seq seq
;
183 u16 p1k
[IWL_P1K_SIZE
];
186 switch (key
->cipher
) {
187 case WLAN_CIPHER_SUITE_WEP40
:
188 case WLAN_CIPHER_SUITE_WEP104
: { /* hack it for now */
190 struct iwl_mvm_wep_key_cmd wep_key_cmd
;
191 struct iwl_mvm_wep_key wep_key
;
193 .wep_key_cmd
.mac_id_n_color
=
194 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
196 .wep_key_cmd
.num_keys
= 1,
197 /* firmware sets STA_KEY_FLG_WEP_13BYTES */
198 .wep_key_cmd
.decryption_type
= STA_KEY_FLG_WEP
,
199 .wep_key
.key_index
= key
->keyidx
,
200 .wep_key
.key_size
= key
->keylen
,
204 * This will fail -- the key functions don't set support
205 * pairwise WEP keys. However, that's better than silently
206 * failing WoWLAN. Or maybe not?
208 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
)
211 memcpy(&wkc
.wep_key
.key
[3], key
->key
, key
->keylen
);
212 if (key
->keyidx
== mvmvif
->tx_key_idx
) {
213 /* TX key must be at offset 0 */
214 wkc
.wep_key
.key_offset
= 0;
216 /* others start at 1 */
218 wkc
.wep_key
.key_offset
= data
->wep_key_idx
;
221 if (data
->configure_keys
) {
222 mutex_lock(&mvm
->mutex
);
223 ret
= iwl_mvm_send_cmd_pdu(mvm
, WEP_KEY
, 0,
225 data
->error
= ret
!= 0;
227 mvm
->ptk_ivlen
= key
->iv_len
;
228 mvm
->ptk_icvlen
= key
->icv_len
;
229 mvm
->gtk_ivlen
= key
->iv_len
;
230 mvm
->gtk_icvlen
= key
->icv_len
;
231 mutex_unlock(&mvm
->mutex
);
234 /* don't upload key again */
240 case WLAN_CIPHER_SUITE_AES_CMAC
:
242 * Ignore CMAC keys -- the WoWLAN firmware doesn't support them
243 * but we also shouldn't abort suspend due to that. It does have
244 * support for the IGTK key renewal, but doesn't really use the
245 * IGTK for anything. This means we could spuriously wake up or
246 * be deauthenticated, but that was considered acceptable.
249 case WLAN_CIPHER_SUITE_TKIP
:
253 tkip_sc
= data
->rsc_tsc
->all_tsc_rsc
.tkip
.unicast_rsc
;
254 tkip_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.tkip
.tsc
;
256 rx_p1ks
= data
->tkip
->rx_uni
;
258 pn64
= atomic64_read(&key
->tx_pn
);
259 tkip_tx_sc
->iv16
= cpu_to_le16(TKIP_PN_TO_IV16(pn64
));
260 tkip_tx_sc
->iv32
= cpu_to_le32(TKIP_PN_TO_IV32(pn64
));
262 ieee80211_get_tkip_p1k_iv(key
, TKIP_PN_TO_IV32(pn64
),
264 iwl_mvm_convert_p1k(p1k
, data
->tkip
->tx
.p1k
);
266 memcpy(data
->tkip
->mic_keys
.tx
,
267 &key
->key
[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY
],
270 rx_mic_key
= data
->tkip
->mic_keys
.rx_unicast
;
273 data
->rsc_tsc
->all_tsc_rsc
.tkip
.multicast_rsc
;
274 rx_p1ks
= data
->tkip
->rx_multi
;
275 rx_mic_key
= data
->tkip
->mic_keys
.rx_mcast
;
279 * For non-QoS this relies on the fact that both the uCode and
280 * mac80211 use TID 0 (as they need to to avoid replay attacks)
281 * for checking the IV in the frames.
283 for (i
= 0; i
< IWL_NUM_RSC
; i
++) {
284 ieee80211_get_key_rx_seq(key
, i
, &seq
);
285 tkip_sc
[i
].iv16
= cpu_to_le16(seq
.tkip
.iv16
);
286 tkip_sc
[i
].iv32
= cpu_to_le32(seq
.tkip
.iv32
);
287 /* wrapping isn't allowed, AP must rekey */
288 if (seq
.tkip
.iv32
> cur_rx_iv32
)
289 cur_rx_iv32
= seq
.tkip
.iv32
;
292 ieee80211_get_tkip_rx_p1k(key
, vif
->bss_conf
.bssid
,
294 iwl_mvm_convert_p1k(p1k
, rx_p1ks
[0].p1k
);
295 ieee80211_get_tkip_rx_p1k(key
, vif
->bss_conf
.bssid
,
296 cur_rx_iv32
+ 1, p1k
);
297 iwl_mvm_convert_p1k(p1k
, rx_p1ks
[1].p1k
);
300 &key
->key
[NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
],
303 data
->use_tkip
= true;
304 data
->use_rsc_tsc
= true;
306 case WLAN_CIPHER_SUITE_CCMP
:
310 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.unicast_rsc
;
311 aes_tx_sc
= &data
->rsc_tsc
->all_tsc_rsc
.aes
.tsc
;
313 pn64
= atomic64_read(&key
->tx_pn
);
314 aes_tx_sc
->pn
= cpu_to_le64(pn64
);
316 aes_sc
= data
->rsc_tsc
->all_tsc_rsc
.aes
.multicast_rsc
;
320 * For non-QoS this relies on the fact that both the uCode and
321 * mac80211/our RX code use TID 0 for checking the PN.
323 if (sta
&& iwl_mvm_has_new_rx_api(mvm
)) {
324 struct iwl_mvm_sta
*mvmsta
;
325 struct iwl_mvm_key_pn
*ptk_pn
;
328 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
329 ptk_pn
= rcu_dereference_protected(
330 mvmsta
->ptk_pn
[key
->keyidx
],
331 lockdep_is_held(&mvm
->mutex
));
332 if (WARN_ON(!ptk_pn
))
335 for (i
= 0; i
< IWL_MAX_TID_COUNT
; i
++) {
336 pn
= iwl_mvm_find_max_pn(key
, ptk_pn
, &seq
, i
,
337 mvm
->trans
->num_rx_queues
);
338 aes_sc
[i
].pn
= cpu_to_le64((u64
)pn
[5] |
346 for (i
= 0; i
< IWL_NUM_RSC
; i
++) {
347 u8
*pn
= seq
.ccmp
.pn
;
349 ieee80211_get_key_rx_seq(key
, i
, &seq
);
350 aes_sc
[i
].pn
= cpu_to_le64((u64
)pn
[5] |
358 data
->use_rsc_tsc
= true;
362 if (data
->configure_keys
) {
363 mutex_lock(&mvm
->mutex
);
365 * The D3 firmware hardcodes the key offset 0 as the key it
366 * uses to transmit packets to the AP, i.e. the PTK.
368 if (key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
) {
369 mvm
->ptk_ivlen
= key
->iv_len
;
370 mvm
->ptk_icvlen
= key
->icv_len
;
371 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, 0);
374 * firmware only supports TSC/RSC for a single key,
375 * so if there are multiple keep overwriting them
376 * with new ones -- this relies on mac80211 doing
379 mvm
->gtk_ivlen
= key
->iv_len
;
380 mvm
->gtk_icvlen
= key
->icv_len
;
381 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, 1);
383 mutex_unlock(&mvm
->mutex
);
384 data
->error
= ret
!= 0;
388 static int iwl_mvm_send_patterns_v1(struct iwl_mvm
*mvm
,
389 struct cfg80211_wowlan
*wowlan
)
391 struct iwl_wowlan_patterns_cmd_v1
*pattern_cmd
;
392 struct iwl_host_cmd cmd
= {
393 .id
= WOWLAN_PATTERNS
,
394 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
398 if (!wowlan
->n_patterns
)
401 cmd
.len
[0] = struct_size(pattern_cmd
, patterns
, wowlan
->n_patterns
);
403 pattern_cmd
= kmalloc(cmd
.len
[0], GFP_KERNEL
);
407 pattern_cmd
->n_patterns
= cpu_to_le32(wowlan
->n_patterns
);
409 for (i
= 0; i
< wowlan
->n_patterns
; i
++) {
410 int mask_len
= DIV_ROUND_UP(wowlan
->patterns
[i
].pattern_len
, 8);
412 memcpy(&pattern_cmd
->patterns
[i
].mask
,
413 wowlan
->patterns
[i
].mask
, mask_len
);
414 memcpy(&pattern_cmd
->patterns
[i
].pattern
,
415 wowlan
->patterns
[i
].pattern
,
416 wowlan
->patterns
[i
].pattern_len
);
417 pattern_cmd
->patterns
[i
].mask_size
= mask_len
;
418 pattern_cmd
->patterns
[i
].pattern_size
=
419 wowlan
->patterns
[i
].pattern_len
;
422 cmd
.data
[0] = pattern_cmd
;
423 err
= iwl_mvm_send_cmd(mvm
, &cmd
);
428 static int iwl_mvm_send_patterns(struct iwl_mvm
*mvm
,
429 struct cfg80211_wowlan
*wowlan
)
431 struct iwl_wowlan_patterns_cmd
*pattern_cmd
;
432 struct iwl_host_cmd cmd
= {
433 .id
= WOWLAN_PATTERNS
,
434 .dataflags
[0] = IWL_HCMD_DFL_NOCOPY
,
438 if (!wowlan
->n_patterns
)
441 cmd
.len
[0] = sizeof(*pattern_cmd
) +
442 wowlan
->n_patterns
* sizeof(struct iwl_wowlan_pattern_v2
);
444 pattern_cmd
= kmalloc(cmd
.len
[0], GFP_KERNEL
);
448 pattern_cmd
->n_patterns
= cpu_to_le32(wowlan
->n_patterns
);
450 for (i
= 0; i
< wowlan
->n_patterns
; i
++) {
451 int mask_len
= DIV_ROUND_UP(wowlan
->patterns
[i
].pattern_len
, 8);
453 pattern_cmd
->patterns
[i
].pattern_type
=
454 WOWLAN_PATTERN_TYPE_BITMASK
;
456 memcpy(&pattern_cmd
->patterns
[i
].u
.bitmask
.mask
,
457 wowlan
->patterns
[i
].mask
, mask_len
);
458 memcpy(&pattern_cmd
->patterns
[i
].u
.bitmask
.pattern
,
459 wowlan
->patterns
[i
].pattern
,
460 wowlan
->patterns
[i
].pattern_len
);
461 pattern_cmd
->patterns
[i
].u
.bitmask
.mask_size
= mask_len
;
462 pattern_cmd
->patterns
[i
].u
.bitmask
.pattern_size
=
463 wowlan
->patterns
[i
].pattern_len
;
466 cmd
.data
[0] = pattern_cmd
;
467 err
= iwl_mvm_send_cmd(mvm
, &cmd
);
472 static int iwl_mvm_d3_reprogram(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
473 struct ieee80211_sta
*ap_sta
)
475 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
476 struct ieee80211_chanctx_conf
*ctx
;
477 u8 chains_static
, chains_dynamic
;
478 struct cfg80211_chan_def chandef
;
480 struct iwl_binding_cmd_v1 binding_cmd
= {};
481 struct iwl_time_quota_cmd quota_cmd
= {};
482 struct iwl_time_quota_data
*quota
;
485 if (WARN_ON_ONCE(iwl_mvm_is_cdb_supported(mvm
)))
488 /* add back the PHY */
489 if (WARN_ON(!mvmvif
->phy_ctxt
))
493 ctx
= rcu_dereference(vif
->chanctx_conf
);
499 chains_static
= ctx
->rx_chains_static
;
500 chains_dynamic
= ctx
->rx_chains_dynamic
;
503 ret
= iwl_mvm_phy_ctxt_add(mvm
, mvmvif
->phy_ctxt
, &chandef
,
504 chains_static
, chains_dynamic
);
508 /* add back the MAC */
509 mvmvif
->uploaded
= false;
511 if (WARN_ON(!vif
->bss_conf
.assoc
))
514 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
518 /* add back binding - XXX refactor? */
519 binding_cmd
.id_and_color
=
520 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
521 mvmvif
->phy_ctxt
->color
));
522 binding_cmd
.action
= cpu_to_le32(FW_CTXT_ACTION_ADD
);
524 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
525 mvmvif
->phy_ctxt
->color
));
526 binding_cmd
.macs
[0] = cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
528 for (i
= 1; i
< MAX_MACS_IN_BINDING
; i
++)
529 binding_cmd
.macs
[i
] = cpu_to_le32(FW_CTXT_INVALID
);
532 ret
= iwl_mvm_send_cmd_pdu_status(mvm
, BINDING_CONTEXT_CMD
,
533 IWL_BINDING_CMD_SIZE_V1
, &binding_cmd
,
536 IWL_ERR(mvm
, "Failed to add binding: %d\n", ret
);
541 IWL_ERR(mvm
, "Binding command failed: %u\n", status
);
545 ret
= iwl_mvm_sta_send_to_fw(mvm
, ap_sta
, false, 0);
548 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvmvif
->ap_sta_id
], ap_sta
);
550 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
555 quota
= iwl_mvm_quota_cmd_get_quota(mvm
, "a_cmd
, 0);
556 quota
->id_and_color
=
557 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->phy_ctxt
->id
,
558 mvmvif
->phy_ctxt
->color
));
559 quota
->quota
= cpu_to_le32(IWL_MVM_MAX_QUOTA
);
560 quota
->max_duration
= cpu_to_le32(IWL_MVM_MAX_QUOTA
);
562 for (i
= 1; i
< MAX_BINDINGS
; i
++) {
563 quota
= iwl_mvm_quota_cmd_get_quota(mvm
, "a_cmd
, i
);
564 quota
->id_and_color
= cpu_to_le32(FW_CTXT_INVALID
);
567 ret
= iwl_mvm_send_cmd_pdu(mvm
, TIME_QUOTA_CMD
, 0,
568 iwl_mvm_quota_cmd_size(mvm
), "a_cmd
);
570 IWL_ERR(mvm
, "Failed to send quota: %d\n", ret
);
572 if (iwl_mvm_is_lar_supported(mvm
) && iwl_mvm_init_fw_regd(mvm
))
573 IWL_ERR(mvm
, "Failed to initialize D3 LAR information\n");
578 static int iwl_mvm_get_last_nonqos_seq(struct iwl_mvm
*mvm
,
579 struct ieee80211_vif
*vif
)
581 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
582 struct iwl_nonqos_seq_query_cmd query_cmd
= {
583 .get_set_flag
= cpu_to_le32(IWL_NONQOS_SEQ_GET
),
585 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
588 struct iwl_host_cmd cmd
= {
589 .id
= NON_QOS_TX_COUNTER_CMD
,
590 .flags
= CMD_WANT_SKB
,
595 cmd
.data
[0] = &query_cmd
;
596 cmd
.len
[0] = sizeof(query_cmd
);
598 err
= iwl_mvm_send_cmd(mvm
, &cmd
);
602 size
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
603 if (size
< sizeof(__le16
)) {
606 err
= le16_to_cpup((__le16
*)cmd
.resp_pkt
->data
);
607 /* firmware returns next, not last-used seqno */
608 err
= (u16
) (err
- 0x10);
615 void iwl_mvm_set_last_nonqos_seq(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
617 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
618 struct iwl_nonqos_seq_query_cmd query_cmd
= {
619 .get_set_flag
= cpu_to_le32(IWL_NONQOS_SEQ_SET
),
621 cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
623 .value
= cpu_to_le16(mvmvif
->seqno
),
626 /* return if called during restart, not resume from D3 */
627 if (!mvmvif
->seqno_valid
)
630 mvmvif
->seqno_valid
= false;
632 if (iwl_mvm_send_cmd_pdu(mvm
, NON_QOS_TX_COUNTER_CMD
, 0,
633 sizeof(query_cmd
), &query_cmd
))
634 IWL_ERR(mvm
, "failed to set non-QoS seqno\n");
637 static int iwl_mvm_switch_to_d3(struct iwl_mvm
*mvm
)
639 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_REGULAR
, true);
641 iwl_mvm_stop_device(mvm
);
643 * Set the HW restart bit -- this is mostly true as we're
644 * going to load new firmware and reprogram that, though
645 * the reprogramming is going to be manual to avoid adding
646 * all the MACs that aren't support.
647 * We don't have to clear up everything though because the
648 * reprogramming is manual. When we resume, we'll actually
649 * go through a proper restart sequence again to switch
650 * back to the runtime firmware image.
652 set_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
654 /* the fw is reset, so all the keys are cleared */
655 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
662 return iwl_mvm_load_d3_fw(mvm
);
666 iwl_mvm_get_wowlan_config(struct iwl_mvm
*mvm
,
667 struct cfg80211_wowlan
*wowlan
,
668 struct iwl_wowlan_config_cmd
*wowlan_config_cmd
,
669 struct ieee80211_vif
*vif
, struct iwl_mvm_vif
*mvmvif
,
670 struct ieee80211_sta
*ap_sta
)
673 struct iwl_mvm_sta
*mvm_ap_sta
= iwl_mvm_sta_from_mac80211(ap_sta
);
675 /* TODO: wowlan_config_cmd->wowlan_ba_teardown_tids */
677 wowlan_config_cmd
->is_11n_connection
=
678 ap_sta
->ht_cap
.ht_supported
;
679 wowlan_config_cmd
->flags
= ENABLE_L3_FILTERING
|
680 ENABLE_NBNS_FILTERING
| ENABLE_DHCP_FILTERING
;
682 /* Query the last used seqno and set it */
683 ret
= iwl_mvm_get_last_nonqos_seq(mvm
, vif
);
687 wowlan_config_cmd
->non_qos_seq
= cpu_to_le16(ret
);
689 iwl_mvm_set_wowlan_qos_seq(mvm_ap_sta
, wowlan_config_cmd
);
691 if (wowlan
->disconnect
)
692 wowlan_config_cmd
->wakeup_filter
|=
693 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS
|
694 IWL_WOWLAN_WAKEUP_LINK_CHANGE
);
695 if (wowlan
->magic_pkt
)
696 wowlan_config_cmd
->wakeup_filter
|=
697 cpu_to_le32(IWL_WOWLAN_WAKEUP_MAGIC_PACKET
);
698 if (wowlan
->gtk_rekey_failure
)
699 wowlan_config_cmd
->wakeup_filter
|=
700 cpu_to_le32(IWL_WOWLAN_WAKEUP_GTK_REKEY_FAIL
);
701 if (wowlan
->eap_identity_req
)
702 wowlan_config_cmd
->wakeup_filter
|=
703 cpu_to_le32(IWL_WOWLAN_WAKEUP_EAP_IDENT_REQ
);
704 if (wowlan
->four_way_handshake
)
705 wowlan_config_cmd
->wakeup_filter
|=
706 cpu_to_le32(IWL_WOWLAN_WAKEUP_4WAY_HANDSHAKE
);
707 if (wowlan
->n_patterns
)
708 wowlan_config_cmd
->wakeup_filter
|=
709 cpu_to_le32(IWL_WOWLAN_WAKEUP_PATTERN_MATCH
);
711 if (wowlan
->rfkill_release
)
712 wowlan_config_cmd
->wakeup_filter
|=
713 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT
);
717 * Set the "link change" (really "link lost") flag as well
718 * since that implies losing the TCP connection.
720 wowlan_config_cmd
->wakeup_filter
|=
721 cpu_to_le32(IWL_WOWLAN_WAKEUP_REMOTE_LINK_LOSS
|
722 IWL_WOWLAN_WAKEUP_REMOTE_SIGNATURE_TABLE
|
723 IWL_WOWLAN_WAKEUP_REMOTE_WAKEUP_PACKET
|
724 IWL_WOWLAN_WAKEUP_LINK_CHANGE
);
728 wowlan_config_cmd
->wakeup_filter
|=
729 cpu_to_le32(IWL_WOWLAN_WAKEUP_BEACON_MISS
|
730 IWL_WOWLAN_WAKEUP_LINK_CHANGE
|
731 IWL_WOWLAN_WAKEUP_RX_FRAME
|
732 IWL_WOWLAN_WAKEUP_BCN_FILTERING
);
738 static int iwl_mvm_wowlan_config_key_params(struct iwl_mvm
*mvm
,
739 struct ieee80211_vif
*vif
,
742 struct iwl_wowlan_kek_kck_material_cmd kek_kck_cmd
= {};
743 struct iwl_wowlan_tkip_params_cmd tkip_cmd
= {};
744 bool unified
= fw_has_capa(&mvm
->fw
->ucode_capa
,
745 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG
);
746 struct wowlan_key_data key_data
= {
747 .configure_keys
= !unified
,
748 .use_rsc_tsc
= false,
752 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
755 key_data
.rsc_tsc
= kzalloc(sizeof(*key_data
.rsc_tsc
), GFP_KERNEL
);
756 if (!key_data
.rsc_tsc
)
760 * if we have to configure keys, call ieee80211_iter_keys(),
761 * as we need non-atomic context in order to take the
765 * Note that currently we don't propagate cmd_flags
766 * to the iterator. In case of key_data.configure_keys,
767 * all the configured commands are SYNC, and
768 * iwl_mvm_wowlan_program_keys() will take care of
769 * locking/unlocking mvm->mutex.
771 ieee80211_iter_keys(mvm
->hw
, vif
, iwl_mvm_wowlan_program_keys
,
774 if (key_data
.error
) {
779 if (key_data
.use_rsc_tsc
) {
780 ret
= iwl_mvm_send_cmd_pdu(mvm
,
781 WOWLAN_TSC_RSC_PARAM
, cmd_flags
,
782 sizeof(*key_data
.rsc_tsc
),
788 if (key_data
.use_tkip
&&
789 !fw_has_api(&mvm
->fw
->ucode_capa
,
790 IWL_UCODE_TLV_API_TKIP_MIC_KEYS
)) {
791 ret
= iwl_mvm_send_cmd_pdu(mvm
,
793 cmd_flags
, sizeof(tkip_cmd
),
799 /* configure rekey data only if offloaded rekey is supported (d3) */
800 if (mvmvif
->rekey_data
.valid
) {
801 memset(&kek_kck_cmd
, 0, sizeof(kek_kck_cmd
));
802 memcpy(kek_kck_cmd
.kck
, mvmvif
->rekey_data
.kck
,
804 kek_kck_cmd
.kck_len
= cpu_to_le16(NL80211_KCK_LEN
);
805 memcpy(kek_kck_cmd
.kek
, mvmvif
->rekey_data
.kek
,
807 kek_kck_cmd
.kek_len
= cpu_to_le16(NL80211_KEK_LEN
);
808 kek_kck_cmd
.replay_ctr
= mvmvif
->rekey_data
.replay_ctr
;
810 ret
= iwl_mvm_send_cmd_pdu(mvm
,
811 WOWLAN_KEK_KCK_MATERIAL
, cmd_flags
,
819 kfree(key_data
.rsc_tsc
);
824 iwl_mvm_wowlan_config(struct iwl_mvm
*mvm
,
825 struct cfg80211_wowlan
*wowlan
,
826 struct iwl_wowlan_config_cmd
*wowlan_config_cmd
,
827 struct ieee80211_vif
*vif
, struct iwl_mvm_vif
*mvmvif
,
828 struct ieee80211_sta
*ap_sta
)
831 bool unified_image
= fw_has_capa(&mvm
->fw
->ucode_capa
,
832 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG
);
834 mvm
->offload_tid
= wowlan_config_cmd
->offloading_tid
;
836 if (!unified_image
) {
837 ret
= iwl_mvm_switch_to_d3(mvm
);
841 ret
= iwl_mvm_d3_reprogram(mvm
, vif
, ap_sta
);
846 if (!iwlwifi_mod_params
.swcrypto
) {
848 * This needs to be unlocked due to lock ordering
849 * constraints. Since we're in the suspend path
850 * that isn't really a problem though.
852 mutex_unlock(&mvm
->mutex
);
853 ret
= iwl_mvm_wowlan_config_key_params(mvm
, vif
, CMD_ASYNC
);
854 mutex_lock(&mvm
->mutex
);
859 ret
= iwl_mvm_send_cmd_pdu(mvm
, WOWLAN_CONFIGURATION
, 0,
860 sizeof(*wowlan_config_cmd
),
865 if (fw_has_api(&mvm
->fw
->ucode_capa
,
866 IWL_UCODE_TLV_API_WOWLAN_TCP_SYN_WAKE
))
867 ret
= iwl_mvm_send_patterns(mvm
, wowlan
);
869 ret
= iwl_mvm_send_patterns_v1(mvm
, wowlan
);
873 return iwl_mvm_send_proto_offload(mvm
, vif
, false, true, 0);
877 iwl_mvm_netdetect_config(struct iwl_mvm
*mvm
,
878 struct cfg80211_wowlan
*wowlan
,
879 struct cfg80211_sched_scan_request
*nd_config
,
880 struct ieee80211_vif
*vif
)
882 struct iwl_wowlan_config_cmd wowlan_config_cmd
= {};
884 bool unified_image
= fw_has_capa(&mvm
->fw
->ucode_capa
,
885 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG
);
887 if (!unified_image
) {
888 ret
= iwl_mvm_switch_to_d3(mvm
);
892 /* In theory, we wouldn't have to stop a running sched
893 * scan in order to start another one (for
894 * net-detect). But in practice this doesn't seem to
895 * work properly, so stop any running sched_scan now.
897 ret
= iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_SCHED
, true);
902 /* rfkill release can be either for wowlan or netdetect */
903 if (wowlan
->rfkill_release
)
904 wowlan_config_cmd
.wakeup_filter
|=
905 cpu_to_le32(IWL_WOWLAN_WAKEUP_RF_KILL_DEASSERT
);
907 wowlan_config_cmd
.sta_id
= mvm
->aux_sta
.sta_id
;
909 ret
= iwl_mvm_send_cmd_pdu(mvm
, WOWLAN_CONFIGURATION
, 0,
910 sizeof(wowlan_config_cmd
),
915 ret
= iwl_mvm_sched_scan_start(mvm
, vif
, nd_config
, &mvm
->nd_ies
,
916 IWL_MVM_SCAN_NETDETECT
);
920 if (WARN_ON(mvm
->nd_match_sets
|| mvm
->nd_channels
))
923 /* save the sched scan matchsets... */
924 if (nd_config
->n_match_sets
) {
925 mvm
->nd_match_sets
= kmemdup(nd_config
->match_sets
,
926 sizeof(*nd_config
->match_sets
) *
927 nd_config
->n_match_sets
,
929 if (mvm
->nd_match_sets
)
930 mvm
->n_nd_match_sets
= nd_config
->n_match_sets
;
933 /* ...and the sched scan channels for later reporting */
934 mvm
->nd_channels
= kmemdup(nd_config
->channels
,
935 sizeof(*nd_config
->channels
) *
936 nd_config
->n_channels
,
938 if (mvm
->nd_channels
)
939 mvm
->n_nd_channels
= nd_config
->n_channels
;
944 static void iwl_mvm_free_nd(struct iwl_mvm
*mvm
)
946 kfree(mvm
->nd_match_sets
);
947 mvm
->nd_match_sets
= NULL
;
948 mvm
->n_nd_match_sets
= 0;
949 kfree(mvm
->nd_channels
);
950 mvm
->nd_channels
= NULL
;
951 mvm
->n_nd_channels
= 0;
954 static int __iwl_mvm_suspend(struct ieee80211_hw
*hw
,
955 struct cfg80211_wowlan
*wowlan
,
958 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
959 struct ieee80211_vif
*vif
= NULL
;
960 struct iwl_mvm_vif
*mvmvif
= NULL
;
961 struct ieee80211_sta
*ap_sta
= NULL
;
962 struct iwl_d3_manager_config d3_cfg_cmd_data
= {
964 * Program the minimum sleep time to 10 seconds, as many
965 * platforms have issues processing a wakeup signal while
966 * still being in the process of suspending.
968 .min_sleep_time
= cpu_to_le32(10 * 1000 * 1000),
970 struct iwl_host_cmd d3_cfg_cmd
= {
972 .flags
= CMD_WANT_SKB
,
973 .data
[0] = &d3_cfg_cmd_data
,
974 .len
[0] = sizeof(d3_cfg_cmd_data
),
977 int len __maybe_unused
;
978 bool unified_image
= fw_has_capa(&mvm
->fw
->ucode_capa
,
979 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG
);
983 * mac80211 shouldn't get here, but for D3 test
984 * it doesn't warrant a warning
990 mutex_lock(&mvm
->mutex
);
992 vif
= iwl_mvm_get_bss_vif(mvm
);
993 if (IS_ERR_OR_NULL(vif
)) {
998 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1000 if (mvmvif
->ap_sta_id
== IWL_MVM_INVALID_STA
) {
1001 /* if we're not associated, this must be netdetect */
1002 if (!wowlan
->nd_config
) {
1007 ret
= iwl_mvm_netdetect_config(
1008 mvm
, wowlan
, wowlan
->nd_config
, vif
);
1012 mvm
->net_detect
= true;
1014 struct iwl_wowlan_config_cmd wowlan_config_cmd
= {};
1016 wowlan_config_cmd
.sta_id
= mvmvif
->ap_sta_id
;
1018 ap_sta
= rcu_dereference_protected(
1019 mvm
->fw_id_to_mac_id
[mvmvif
->ap_sta_id
],
1020 lockdep_is_held(&mvm
->mutex
));
1021 if (IS_ERR_OR_NULL(ap_sta
)) {
1026 ret
= iwl_mvm_get_wowlan_config(mvm
, wowlan
, &wowlan_config_cmd
,
1027 vif
, mvmvif
, ap_sta
);
1030 ret
= iwl_mvm_wowlan_config(mvm
, wowlan
, &wowlan_config_cmd
,
1031 vif
, mvmvif
, ap_sta
);
1035 mvm
->net_detect
= false;
1038 ret
= iwl_mvm_power_update_device(mvm
);
1042 ret
= iwl_mvm_power_update_mac(mvm
);
1046 #ifdef CONFIG_IWLWIFI_DEBUGFS
1047 if (mvm
->d3_wake_sysassert
)
1048 d3_cfg_cmd_data
.wakeup_flags
|=
1049 cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR
);
1053 * Prior to 9000 device family the driver needs to stop the dbg
1054 * recording before entering D3. In later devices the FW stops the
1055 * recording automatically.
1057 if (mvm
->trans
->trans_cfg
->device_family
< IWL_DEVICE_FAMILY_9000
)
1058 iwl_fw_dbg_stop_restart_recording(&mvm
->fwrt
, NULL
, true);
1060 /* must be last -- this switches firmware state */
1061 ret
= iwl_mvm_send_cmd(mvm
, &d3_cfg_cmd
);
1064 #ifdef CONFIG_IWLWIFI_DEBUGFS
1065 len
= iwl_rx_packet_payload_len(d3_cfg_cmd
.resp_pkt
);
1066 if (len
>= sizeof(u32
)) {
1067 mvm
->d3_test_pme_ptr
=
1068 le32_to_cpup((__le32
*)d3_cfg_cmd
.resp_pkt
->data
);
1071 iwl_free_resp(&d3_cfg_cmd
);
1073 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1075 ret
= iwl_trans_d3_suspend(mvm
->trans
, test
, !unified_image
);
1078 iwl_mvm_free_nd(mvm
);
1080 if (!unified_image
) {
1081 if (mvm
->fw_restart
> 0) {
1083 ieee80211_restart_hw(mvm
->hw
);
1088 mutex_unlock(&mvm
->mutex
);
1093 int iwl_mvm_suspend(struct ieee80211_hw
*hw
, struct cfg80211_wowlan
*wowlan
)
1095 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1096 struct iwl_trans
*trans
= mvm
->trans
;
1099 iwl_mvm_pause_tcm(mvm
, true);
1101 iwl_fw_runtime_suspend(&mvm
->fwrt
);
1103 ret
= iwl_trans_suspend(trans
);
1107 trans
->system_pm_mode
= IWL_PLAT_PM_MODE_D3
;
1109 return __iwl_mvm_suspend(hw
, wowlan
, false);
1112 /* converted data from the different status responses */
1113 struct iwl_wowlan_status_data
{
1117 u32 wake_packet_length
;
1118 u32 wake_packet_bufsize
;
1119 const u8
*wake_packet
;
1122 static void iwl_mvm_report_wakeup_reasons(struct iwl_mvm
*mvm
,
1123 struct ieee80211_vif
*vif
,
1124 struct iwl_wowlan_status_data
*status
)
1126 struct sk_buff
*pkt
= NULL
;
1127 struct cfg80211_wowlan_wakeup wakeup
= {
1130 struct cfg80211_wowlan_wakeup
*wakeup_report
= &wakeup
;
1131 u32 reasons
= status
->wakeup_reasons
;
1133 if (reasons
== IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS
) {
1134 wakeup_report
= NULL
;
1138 pm_wakeup_event(mvm
->dev
, 0);
1140 if (reasons
& IWL_WOWLAN_WAKEUP_BY_MAGIC_PACKET
)
1141 wakeup
.magic_pkt
= true;
1143 if (reasons
& IWL_WOWLAN_WAKEUP_BY_PATTERN
)
1144 wakeup
.pattern_idx
=
1145 status
->pattern_number
;
1147 if (reasons
& (IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON
|
1148 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH
))
1149 wakeup
.disconnect
= true;
1151 if (reasons
& IWL_WOWLAN_WAKEUP_BY_GTK_REKEY_FAILURE
)
1152 wakeup
.gtk_rekey_failure
= true;
1154 if (reasons
& IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED
)
1155 wakeup
.rfkill_release
= true;
1157 if (reasons
& IWL_WOWLAN_WAKEUP_BY_EAPOL_REQUEST
)
1158 wakeup
.eap_identity_req
= true;
1160 if (reasons
& IWL_WOWLAN_WAKEUP_BY_FOUR_WAY_HANDSHAKE
)
1161 wakeup
.four_way_handshake
= true;
1163 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_LINK_LOSS
)
1164 wakeup
.tcp_connlost
= true;
1166 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_SIGNATURE_TABLE
)
1167 wakeup
.tcp_nomoretokens
= true;
1169 if (reasons
& IWL_WOWLAN_WAKEUP_BY_REM_WAKE_WAKEUP_PACKET
)
1170 wakeup
.tcp_match
= true;
1172 if (status
->wake_packet_bufsize
) {
1173 int pktsize
= status
->wake_packet_bufsize
;
1174 int pktlen
= status
->wake_packet_length
;
1175 const u8
*pktdata
= status
->wake_packet
;
1176 struct ieee80211_hdr
*hdr
= (void *)pktdata
;
1177 int truncated
= pktlen
- pktsize
;
1179 /* this would be a firmware bug */
1180 if (WARN_ON_ONCE(truncated
< 0))
1183 if (ieee80211_is_data(hdr
->frame_control
)) {
1184 int hdrlen
= ieee80211_hdrlen(hdr
->frame_control
);
1185 int ivlen
= 0, icvlen
= 4; /* also FCS */
1187 pkt
= alloc_skb(pktsize
, GFP_KERNEL
);
1191 skb_put_data(pkt
, pktdata
, hdrlen
);
1195 if (ieee80211_has_protected(hdr
->frame_control
)) {
1197 * This is unlocked and using gtk_i(c)vlen,
1198 * but since everything is under RTNL still
1199 * that's not really a problem - changing
1200 * it would be difficult.
1202 if (is_multicast_ether_addr(hdr
->addr1
)) {
1203 ivlen
= mvm
->gtk_ivlen
;
1204 icvlen
+= mvm
->gtk_icvlen
;
1206 ivlen
= mvm
->ptk_ivlen
;
1207 icvlen
+= mvm
->ptk_icvlen
;
1211 /* if truncated, FCS/ICV is (partially) gone */
1212 if (truncated
>= icvlen
) {
1214 truncated
-= icvlen
;
1216 icvlen
-= truncated
;
1220 pktsize
-= ivlen
+ icvlen
;
1223 skb_put_data(pkt
, pktdata
, pktsize
);
1225 if (ieee80211_data_to_8023(pkt
, vif
->addr
, vif
->type
))
1227 wakeup
.packet
= pkt
->data
;
1228 wakeup
.packet_present_len
= pkt
->len
;
1229 wakeup
.packet_len
= pkt
->len
- truncated
;
1230 wakeup
.packet_80211
= false;
1234 if (truncated
>= 4) {
1238 fcslen
-= truncated
;
1242 wakeup
.packet
= status
->wake_packet
;
1243 wakeup
.packet_present_len
= pktsize
;
1244 wakeup
.packet_len
= pktlen
- truncated
;
1245 wakeup
.packet_80211
= true;
1250 ieee80211_report_wowlan_wakeup(vif
, wakeup_report
, GFP_KERNEL
);
1254 static void iwl_mvm_aes_sc_to_seq(struct aes_sc
*sc
,
1255 struct ieee80211_key_seq
*seq
)
1259 pn
= le64_to_cpu(sc
->pn
);
1260 seq
->ccmp
.pn
[0] = pn
>> 40;
1261 seq
->ccmp
.pn
[1] = pn
>> 32;
1262 seq
->ccmp
.pn
[2] = pn
>> 24;
1263 seq
->ccmp
.pn
[3] = pn
>> 16;
1264 seq
->ccmp
.pn
[4] = pn
>> 8;
1265 seq
->ccmp
.pn
[5] = pn
;
1268 static void iwl_mvm_tkip_sc_to_seq(struct tkip_sc
*sc
,
1269 struct ieee80211_key_seq
*seq
)
1271 seq
->tkip
.iv32
= le32_to_cpu(sc
->iv32
);
1272 seq
->tkip
.iv16
= le16_to_cpu(sc
->iv16
);
1275 static void iwl_mvm_set_aes_rx_seq(struct iwl_mvm
*mvm
, struct aes_sc
*scs
,
1276 struct ieee80211_sta
*sta
,
1277 struct ieee80211_key_conf
*key
)
1281 BUILD_BUG_ON(IWL_NUM_RSC
!= IEEE80211_NUM_TIDS
);
1283 if (sta
&& iwl_mvm_has_new_rx_api(mvm
)) {
1284 struct iwl_mvm_sta
*mvmsta
;
1285 struct iwl_mvm_key_pn
*ptk_pn
;
1287 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
1289 ptk_pn
= rcu_dereference_protected(mvmsta
->ptk_pn
[key
->keyidx
],
1290 lockdep_is_held(&mvm
->mutex
));
1291 if (WARN_ON(!ptk_pn
))
1294 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
1295 struct ieee80211_key_seq seq
= {};
1298 iwl_mvm_aes_sc_to_seq(&scs
[tid
], &seq
);
1299 ieee80211_set_key_rx_seq(key
, tid
, &seq
);
1300 for (i
= 1; i
< mvm
->trans
->num_rx_queues
; i
++)
1301 memcpy(ptk_pn
->q
[i
].pn
[tid
],
1302 seq
.ccmp
.pn
, IEEE80211_CCMP_PN_LEN
);
1305 for (tid
= 0; tid
< IWL_NUM_RSC
; tid
++) {
1306 struct ieee80211_key_seq seq
= {};
1308 iwl_mvm_aes_sc_to_seq(&scs
[tid
], &seq
);
1309 ieee80211_set_key_rx_seq(key
, tid
, &seq
);
1314 static void iwl_mvm_set_tkip_rx_seq(struct tkip_sc
*scs
,
1315 struct ieee80211_key_conf
*key
)
1319 BUILD_BUG_ON(IWL_NUM_RSC
!= IEEE80211_NUM_TIDS
);
1321 for (tid
= 0; tid
< IWL_NUM_RSC
; tid
++) {
1322 struct ieee80211_key_seq seq
= {};
1324 iwl_mvm_tkip_sc_to_seq(&scs
[tid
], &seq
);
1325 ieee80211_set_key_rx_seq(key
, tid
, &seq
);
1329 static void iwl_mvm_set_key_rx_seq(struct iwl_mvm
*mvm
,
1330 struct ieee80211_key_conf
*key
,
1331 struct iwl_wowlan_status
*status
)
1333 union iwl_all_tsc_rsc
*rsc
= &status
->gtk
[0].rsc
.all_tsc_rsc
;
1335 switch (key
->cipher
) {
1336 case WLAN_CIPHER_SUITE_CCMP
:
1337 iwl_mvm_set_aes_rx_seq(mvm
, rsc
->aes
.multicast_rsc
, NULL
, key
);
1339 case WLAN_CIPHER_SUITE_TKIP
:
1340 iwl_mvm_set_tkip_rx_seq(rsc
->tkip
.multicast_rsc
, key
);
1347 struct iwl_mvm_d3_gtk_iter_data
{
1348 struct iwl_mvm
*mvm
;
1349 struct iwl_wowlan_status
*status
;
1352 bool find_phase
, unhandled_cipher
;
1356 static void iwl_mvm_d3_update_keys(struct ieee80211_hw
*hw
,
1357 struct ieee80211_vif
*vif
,
1358 struct ieee80211_sta
*sta
,
1359 struct ieee80211_key_conf
*key
,
1362 struct iwl_mvm_d3_gtk_iter_data
*data
= _data
;
1364 if (data
->unhandled_cipher
)
1367 switch (key
->cipher
) {
1368 case WLAN_CIPHER_SUITE_WEP40
:
1369 case WLAN_CIPHER_SUITE_WEP104
:
1370 /* ignore WEP completely, nothing to do */
1372 case WLAN_CIPHER_SUITE_CCMP
:
1373 case WLAN_CIPHER_SUITE_TKIP
:
1374 /* we support these */
1377 /* everything else (even CMAC for MFP) - disconnect from AP */
1378 data
->unhandled_cipher
= true;
1385 * pairwise key - update sequence counters only;
1386 * note that this assumes no TDLS sessions are active
1389 struct ieee80211_key_seq seq
= {};
1390 union iwl_all_tsc_rsc
*sc
=
1391 &data
->status
->gtk
[0].rsc
.all_tsc_rsc
;
1393 if (data
->find_phase
)
1396 switch (key
->cipher
) {
1397 case WLAN_CIPHER_SUITE_CCMP
:
1398 iwl_mvm_set_aes_rx_seq(data
->mvm
, sc
->aes
.unicast_rsc
,
1400 atomic64_set(&key
->tx_pn
, le64_to_cpu(sc
->aes
.tsc
.pn
));
1402 case WLAN_CIPHER_SUITE_TKIP
:
1403 iwl_mvm_tkip_sc_to_seq(&sc
->tkip
.tsc
, &seq
);
1404 iwl_mvm_set_tkip_rx_seq(sc
->tkip
.unicast_rsc
, key
);
1405 atomic64_set(&key
->tx_pn
,
1406 (u64
)seq
.tkip
.iv16
|
1407 ((u64
)seq
.tkip
.iv32
<< 16));
1411 /* that's it for this key */
1415 if (data
->find_phase
) {
1416 data
->last_gtk
= key
;
1417 data
->cipher
= key
->cipher
;
1421 if (data
->status
->num_of_gtk_rekeys
)
1422 ieee80211_remove_key(key
);
1423 else if (data
->last_gtk
== key
)
1424 iwl_mvm_set_key_rx_seq(data
->mvm
, key
, data
->status
);
1427 static bool iwl_mvm_setup_connection_keep(struct iwl_mvm
*mvm
,
1428 struct ieee80211_vif
*vif
,
1429 struct iwl_wowlan_status
*status
)
1431 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1432 struct iwl_mvm_d3_gtk_iter_data gtkdata
= {
1436 u32 disconnection_reasons
=
1437 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_MISSED_BEACON
|
1438 IWL_WOWLAN_WAKEUP_BY_DISCONNECTION_ON_DEAUTH
;
1440 if (!status
|| !vif
->bss_conf
.bssid
)
1443 if (le32_to_cpu(status
->wakeup_reasons
) & disconnection_reasons
)
1446 /* find last GTK that we used initially, if any */
1447 gtkdata
.find_phase
= true;
1448 ieee80211_iter_keys(mvm
->hw
, vif
,
1449 iwl_mvm_d3_update_keys
, >kdata
);
1450 /* not trying to keep connections with MFP/unhandled ciphers */
1451 if (gtkdata
.unhandled_cipher
)
1453 if (!gtkdata
.num_keys
)
1455 if (!gtkdata
.last_gtk
)
1459 * invalidate all other GTKs that might still exist and update
1460 * the one that we used
1462 gtkdata
.find_phase
= false;
1463 ieee80211_iter_keys(mvm
->hw
, vif
,
1464 iwl_mvm_d3_update_keys
, >kdata
);
1466 if (status
->num_of_gtk_rekeys
) {
1467 struct ieee80211_key_conf
*key
;
1469 struct ieee80211_key_conf conf
;
1472 .conf
.cipher
= gtkdata
.cipher
,
1474 iwlmvm_wowlan_gtk_idx(&status
->gtk
[0]),
1478 switch (gtkdata
.cipher
) {
1479 case WLAN_CIPHER_SUITE_CCMP
:
1480 conf
.conf
.keylen
= WLAN_KEY_LEN_CCMP
;
1481 memcpy(conf
.conf
.key
, status
->gtk
[0].key
,
1484 case WLAN_CIPHER_SUITE_TKIP
:
1485 conf
.conf
.keylen
= WLAN_KEY_LEN_TKIP
;
1486 memcpy(conf
.conf
.key
, status
->gtk
[0].key
, 16);
1487 /* leave TX MIC key zeroed, we don't use it anyway */
1488 memcpy(conf
.conf
.key
+
1489 NL80211_TKIP_DATA_OFFSET_RX_MIC_KEY
,
1490 status
->gtk
[0].tkip_mic_key
, 8);
1494 key
= ieee80211_gtk_rekey_add(vif
, &conf
.conf
);
1497 iwl_mvm_set_key_rx_seq(mvm
, key
, status
);
1500 cpu_to_be64(le64_to_cpu(status
->replay_ctr
));
1502 ieee80211_gtk_rekey_notify(vif
, vif
->bss_conf
.bssid
,
1503 (void *)&replay_ctr
, GFP_KERNEL
);
1507 mvmvif
->seqno_valid
= true;
1508 /* +0x10 because the set API expects next-to-use, not last-used */
1509 mvmvif
->seqno
= le16_to_cpu(status
->non_qos_seq_ctr
) + 0x10;
1514 struct iwl_wowlan_status
*iwl_mvm_send_wowlan_get_status(struct iwl_mvm
*mvm
)
1516 struct iwl_wowlan_status
*v7
, *status
;
1517 struct iwl_host_cmd cmd
= {
1518 .id
= WOWLAN_GET_STATUSES
,
1519 .flags
= CMD_WANT_SKB
,
1521 int ret
, len
, status_size
;
1523 lockdep_assert_held(&mvm
->mutex
);
1525 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
1527 IWL_ERR(mvm
, "failed to query wakeup status (%d)\n", ret
);
1528 return ERR_PTR(ret
);
1531 if (!fw_has_api(&mvm
->fw
->ucode_capa
,
1532 IWL_UCODE_TLV_API_WOWLAN_KEY_MATERIAL
)) {
1533 struct iwl_wowlan_status_v6
*v6
= (void *)cmd
.resp_pkt
->data
;
1536 status_size
= sizeof(*v6
);
1537 len
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
1539 if (len
< status_size
) {
1540 IWL_ERR(mvm
, "Invalid WoWLAN status response!\n");
1541 status
= ERR_PTR(-EIO
);
1545 data_size
= ALIGN(le32_to_cpu(v6
->wake_packet_bufsize
), 4);
1547 if (len
!= (status_size
+ data_size
)) {
1548 IWL_ERR(mvm
, "Invalid WoWLAN status response!\n");
1549 status
= ERR_PTR(-EIO
);
1553 status
= kzalloc(sizeof(*status
) + data_size
, GFP_KERNEL
);
1557 BUILD_BUG_ON(sizeof(v6
->gtk
.decrypt_key
) >
1558 sizeof(status
->gtk
[0].key
));
1559 BUILD_BUG_ON(sizeof(v6
->gtk
.tkip_mic_key
) >
1560 sizeof(status
->gtk
[0].tkip_mic_key
));
1562 /* copy GTK info to the right place */
1563 memcpy(status
->gtk
[0].key
, v6
->gtk
.decrypt_key
,
1564 sizeof(v6
->gtk
.decrypt_key
));
1565 memcpy(status
->gtk
[0].tkip_mic_key
, v6
->gtk
.tkip_mic_key
,
1566 sizeof(v6
->gtk
.tkip_mic_key
));
1567 memcpy(&status
->gtk
[0].rsc
, &v6
->gtk
.rsc
,
1568 sizeof(status
->gtk
[0].rsc
));
1570 /* hardcode the key length to 16 since v6 only supports 16 */
1571 status
->gtk
[0].key_len
= 16;
1574 * The key index only uses 2 bits (values 0 to 3) and
1575 * we always set bit 7 which means this is the
1576 * currently used key.
1578 status
->gtk
[0].key_flags
= v6
->gtk
.key_index
| BIT(7);
1580 status
->replay_ctr
= v6
->replay_ctr
;
1582 /* everything starting from pattern_number is identical */
1583 memcpy(&status
->pattern_number
, &v6
->pattern_number
,
1584 offsetof(struct iwl_wowlan_status
, wake_packet
) -
1585 offsetof(struct iwl_wowlan_status
, pattern_number
) +
1591 v7
= (void *)cmd
.resp_pkt
->data
;
1592 status_size
= sizeof(*v7
);
1593 len
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
1595 if (len
< status_size
) {
1596 IWL_ERR(mvm
, "Invalid WoWLAN status response!\n");
1597 status
= ERR_PTR(-EIO
);
1601 if (len
!= (status_size
+
1602 ALIGN(le32_to_cpu(v7
->wake_packet_bufsize
), 4))) {
1603 IWL_ERR(mvm
, "Invalid WoWLAN status response!\n");
1604 status
= ERR_PTR(-EIO
);
1608 status
= kmemdup(v7
, len
, GFP_KERNEL
);
1611 iwl_free_resp(&cmd
);
1615 static struct iwl_wowlan_status
*
1616 iwl_mvm_get_wakeup_status(struct iwl_mvm
*mvm
)
1620 /* only for tracing for now */
1621 ret
= iwl_mvm_send_cmd_pdu(mvm
, OFFLOADS_QUERY_CMD
, 0, 0, NULL
);
1623 IWL_ERR(mvm
, "failed to query offload statistics (%d)\n", ret
);
1625 return iwl_mvm_send_wowlan_get_status(mvm
);
1628 /* releases the MVM mutex */
1629 static bool iwl_mvm_query_wakeup_reasons(struct iwl_mvm
*mvm
,
1630 struct ieee80211_vif
*vif
)
1632 struct iwl_wowlan_status_data status
;
1633 struct iwl_wowlan_status
*fw_status
;
1636 struct iwl_mvm_sta
*mvm_ap_sta
;
1638 fw_status
= iwl_mvm_get_wakeup_status(mvm
);
1639 if (IS_ERR_OR_NULL(fw_status
))
1642 status
.pattern_number
= le16_to_cpu(fw_status
->pattern_number
);
1643 for (i
= 0; i
< 8; i
++)
1644 status
.qos_seq_ctr
[i
] =
1645 le16_to_cpu(fw_status
->qos_seq_ctr
[i
]);
1646 status
.wakeup_reasons
= le32_to_cpu(fw_status
->wakeup_reasons
);
1647 status
.wake_packet_length
=
1648 le32_to_cpu(fw_status
->wake_packet_length
);
1649 status
.wake_packet_bufsize
=
1650 le32_to_cpu(fw_status
->wake_packet_bufsize
);
1651 status
.wake_packet
= fw_status
->wake_packet
;
1653 /* still at hard-coded place 0 for D3 image */
1654 mvm_ap_sta
= iwl_mvm_sta_from_staid_protected(mvm
, 0);
1658 for (i
= 0; i
< IWL_MAX_TID_COUNT
; i
++) {
1659 u16 seq
= status
.qos_seq_ctr
[i
];
1660 /* firmware stores last-used value, we store next value */
1662 mvm_ap_sta
->tid_data
[i
].seq_number
= seq
;
1665 if (mvm
->trans
->trans_cfg
->device_family
>= IWL_DEVICE_FAMILY_22000
) {
1666 i
= mvm
->offload_tid
;
1667 iwl_trans_set_q_ptrs(mvm
->trans
,
1668 mvm_ap_sta
->tid_data
[i
].txq_id
,
1669 mvm_ap_sta
->tid_data
[i
].seq_number
>> 4);
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 #define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \
1690 IWL_SCAN_MAX_PROFILES)
1692 struct iwl_mvm_nd_query_results
{
1693 u32 matched_profiles
;
1694 u8 matches
[ND_QUERY_BUF_LEN
];
1698 iwl_mvm_netdetect_query_results(struct iwl_mvm
*mvm
,
1699 struct iwl_mvm_nd_query_results
*results
)
1701 struct iwl_scan_offload_profiles_query
*query
;
1702 struct iwl_host_cmd cmd
= {
1703 .id
= SCAN_OFFLOAD_PROFILES_QUERY_CMD
,
1704 .flags
= CMD_WANT_SKB
,
1707 size_t query_len
, matches_len
;
1709 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
1711 IWL_ERR(mvm
, "failed to query matched profiles (%d)\n", ret
);
1715 if (fw_has_api(&mvm
->fw
->ucode_capa
,
1716 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS
)) {
1717 query_len
= sizeof(struct iwl_scan_offload_profiles_query
);
1718 matches_len
= sizeof(struct iwl_scan_offload_profile_match
) *
1719 IWL_SCAN_MAX_PROFILES
;
1721 query_len
= sizeof(struct iwl_scan_offload_profiles_query_v1
);
1722 matches_len
= sizeof(struct iwl_scan_offload_profile_match_v1
) *
1723 IWL_SCAN_MAX_PROFILES
;
1726 len
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
1727 if (len
< query_len
) {
1728 IWL_ERR(mvm
, "Invalid scan offload profiles query response!\n");
1733 query
= (void *)cmd
.resp_pkt
->data
;
1735 results
->matched_profiles
= le32_to_cpu(query
->matched_profiles
);
1736 memcpy(results
->matches
, query
->matches
, matches_len
);
1738 #ifdef CONFIG_IWLWIFI_DEBUGFS
1739 mvm
->last_netdetect_scans
= le32_to_cpu(query
->n_scans_done
);
1743 iwl_free_resp(&cmd
);
1747 static int iwl_mvm_query_num_match_chans(struct iwl_mvm
*mvm
,
1748 struct iwl_mvm_nd_query_results
*query
,
1753 if (fw_has_api(&mvm
->fw
->ucode_capa
,
1754 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS
)) {
1755 struct iwl_scan_offload_profile_match
*matches
=
1756 (struct iwl_scan_offload_profile_match
*)query
->matches
;
1758 for (i
= 0; i
< SCAN_OFFLOAD_MATCHING_CHANNELS_LEN
; i
++)
1759 n_chans
+= hweight8(matches
[idx
].matching_channels
[i
]);
1761 struct iwl_scan_offload_profile_match_v1
*matches
=
1762 (struct iwl_scan_offload_profile_match_v1
*)query
->matches
;
1764 for (i
= 0; i
< SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1
; i
++)
1765 n_chans
+= hweight8(matches
[idx
].matching_channels
[i
]);
1771 static void iwl_mvm_query_set_freqs(struct iwl_mvm
*mvm
,
1772 struct iwl_mvm_nd_query_results
*query
,
1773 struct cfg80211_wowlan_nd_match
*match
,
1778 if (fw_has_api(&mvm
->fw
->ucode_capa
,
1779 IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS
)) {
1780 struct iwl_scan_offload_profile_match
*matches
=
1781 (struct iwl_scan_offload_profile_match
*)query
->matches
;
1783 for (i
= 0; i
< SCAN_OFFLOAD_MATCHING_CHANNELS_LEN
* 8; i
++)
1784 if (matches
[idx
].matching_channels
[i
/ 8] & (BIT(i
% 8)))
1785 match
->channels
[match
->n_channels
++] =
1786 mvm
->nd_channels
[i
]->center_freq
;
1788 struct iwl_scan_offload_profile_match_v1
*matches
=
1789 (struct iwl_scan_offload_profile_match_v1
*)query
->matches
;
1791 for (i
= 0; i
< SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1
* 8; i
++)
1792 if (matches
[idx
].matching_channels
[i
/ 8] & (BIT(i
% 8)))
1793 match
->channels
[match
->n_channels
++] =
1794 mvm
->nd_channels
[i
]->center_freq
;
1798 static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm
*mvm
,
1799 struct ieee80211_vif
*vif
)
1801 struct cfg80211_wowlan_nd_info
*net_detect
= NULL
;
1802 struct cfg80211_wowlan_wakeup wakeup
= {
1805 struct cfg80211_wowlan_wakeup
*wakeup_report
= &wakeup
;
1806 struct iwl_mvm_nd_query_results query
;
1807 struct iwl_wowlan_status
*fw_status
;
1808 unsigned long matched_profiles
;
1810 int i
, n_matches
, ret
;
1812 fw_status
= iwl_mvm_get_wakeup_status(mvm
);
1813 if (!IS_ERR_OR_NULL(fw_status
)) {
1814 reasons
= le32_to_cpu(fw_status
->wakeup_reasons
);
1818 if (reasons
& IWL_WOWLAN_WAKEUP_BY_RFKILL_DEASSERTED
)
1819 wakeup
.rfkill_release
= true;
1821 if (reasons
!= IWL_WOWLAN_WAKEUP_BY_NON_WIRELESS
)
1824 ret
= iwl_mvm_netdetect_query_results(mvm
, &query
);
1825 if (ret
|| !query
.matched_profiles
) {
1826 wakeup_report
= NULL
;
1830 matched_profiles
= query
.matched_profiles
;
1831 if (mvm
->n_nd_match_sets
) {
1832 n_matches
= hweight_long(matched_profiles
);
1834 IWL_ERR(mvm
, "no net detect match information available\n");
1838 net_detect
= kzalloc(struct_size(net_detect
, matches
, n_matches
),
1840 if (!net_detect
|| !n_matches
)
1843 for_each_set_bit(i
, &matched_profiles
, mvm
->n_nd_match_sets
) {
1844 struct cfg80211_wowlan_nd_match
*match
;
1845 int idx
, n_channels
= 0;
1847 n_channels
= iwl_mvm_query_num_match_chans(mvm
, &query
, i
);
1849 match
= kzalloc(struct_size(match
, channels
, n_channels
),
1854 net_detect
->matches
[net_detect
->n_matches
++] = match
;
1856 /* We inverted the order of the SSIDs in the scan
1857 * request, so invert the index here.
1859 idx
= mvm
->n_nd_match_sets
- i
- 1;
1860 match
->ssid
.ssid_len
= mvm
->nd_match_sets
[idx
].ssid
.ssid_len
;
1861 memcpy(match
->ssid
.ssid
, mvm
->nd_match_sets
[idx
].ssid
.ssid
,
1862 match
->ssid
.ssid_len
);
1864 if (mvm
->n_nd_channels
< n_channels
)
1867 iwl_mvm_query_set_freqs(mvm
, &query
, match
, i
);
1871 wakeup
.net_detect
= net_detect
;
1873 iwl_mvm_free_nd(mvm
);
1875 mutex_unlock(&mvm
->mutex
);
1876 ieee80211_report_wowlan_wakeup(vif
, wakeup_report
, GFP_KERNEL
);
1879 for (i
= 0; i
< net_detect
->n_matches
; i
++)
1880 kfree(net_detect
->matches
[i
]);
1885 static void iwl_mvm_d3_disconnect_iter(void *data
, u8
*mac
,
1886 struct ieee80211_vif
*vif
)
1888 /* skip the one we keep connection on */
1892 if (vif
->type
== NL80211_IFTYPE_STATION
)
1893 ieee80211_resume_disconnect(vif
);
1896 static int iwl_mvm_check_rt_status(struct iwl_mvm
*mvm
,
1897 struct ieee80211_vif
*vif
)
1899 u32 base
= mvm
->trans
->dbg
.lmac_error_event_table
[0];
1900 struct error_table_start
{
1901 /* cf. struct iwl_error_event_table */
1906 iwl_trans_read_mem_bytes(mvm
->trans
, base
,
1907 &err_info
, sizeof(err_info
));
1909 if (err_info
.valid
&&
1910 err_info
.error_id
== RF_KILL_INDICATOR_FOR_WOWLAN
) {
1911 struct cfg80211_wowlan_wakeup wakeup
= {
1912 .rfkill_release
= true,
1914 ieee80211_report_wowlan_wakeup(vif
, &wakeup
, GFP_KERNEL
);
1916 return err_info
.valid
;
1919 static int __iwl_mvm_resume(struct iwl_mvm
*mvm
, bool test
)
1921 struct ieee80211_vif
*vif
= NULL
;
1923 enum iwl_d3_status d3_status
;
1925 bool unified_image
= fw_has_capa(&mvm
->fw
->ucode_capa
,
1926 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG
);
1927 bool d0i3_first
= fw_has_capa(&mvm
->fw
->ucode_capa
,
1928 IWL_UCODE_TLV_CAPA_D0I3_END_FIRST
);
1930 mutex_lock(&mvm
->mutex
);
1932 /* get the BSS vif pointer again */
1933 vif
= iwl_mvm_get_bss_vif(mvm
);
1934 if (IS_ERR_OR_NULL(vif
))
1937 iwl_fw_dbg_read_d3_debug_data(&mvm
->fwrt
);
1939 if (iwl_mvm_check_rt_status(mvm
, vif
)) {
1940 set_bit(STATUS_FW_ERROR
, &mvm
->trans
->status
);
1941 iwl_mvm_dump_nic_error_log(mvm
);
1942 iwl_dbg_tlv_time_point(&mvm
->fwrt
,
1943 IWL_FW_INI_TIME_POINT_FW_ASSERT
, NULL
);
1944 iwl_fw_dbg_collect_desc(&mvm
->fwrt
, &iwl_dump_desc_assert
,
1950 ret
= iwl_trans_d3_resume(mvm
->trans
, &d3_status
, test
, !unified_image
);
1954 if (d3_status
!= IWL_D3_STATUS_ALIVE
) {
1955 IWL_INFO(mvm
, "Device was reset during suspend\n");
1960 struct iwl_host_cmd cmd
= {
1962 .flags
= CMD_WANT_SKB
,
1966 ret
= iwl_mvm_send_cmd(mvm
, &cmd
);
1968 IWL_ERR(mvm
, "Failed to send D0I3_END_CMD first (%d)\n",
1972 switch (mvm
->cmd_ver
.d0i3_resp
) {
1976 len
= iwl_rx_packet_payload_len(cmd
.resp_pkt
);
1977 if (len
!= sizeof(u32
)) {
1979 "Error with D0I3_END_CMD response size (%d)\n",
1983 if (IWL_D0I3_RESET_REQUIRE
&
1984 le32_to_cpu(*(__le32
*)cmd
.resp_pkt
->data
)) {
1985 iwl_write32(mvm
->trans
, CSR_RESET
,
1986 CSR_RESET_REG_FLAG_FORCE_NMI
);
1987 iwl_free_resp(&cmd
);
1996 * Query the current location and source from the D3 firmware so we
1997 * can play it back when we re-intiailize the D0 firmware
1999 iwl_mvm_update_changed_regdom(mvm
);
2001 /* Re-configure PPAG settings */
2002 iwl_mvm_ppag_send_cmd(mvm
);
2005 /* Re-configure default SAR profile */
2006 iwl_mvm_sar_select_profile(mvm
, 1, 1);
2008 if (mvm
->net_detect
) {
2009 /* If this is a non-unified image, we restart the FW,
2010 * so no need to stop the netdetect scan. If that
2011 * fails, continue and try to get the wake-up reasons,
2012 * but trigger a HW restart by keeping a failure code
2016 ret
= iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_NETDETECT
,
2019 iwl_mvm_query_netdetect_reasons(mvm
, vif
);
2020 /* has unlocked the mutex, so skip that */
2023 keep
= iwl_mvm_query_wakeup_reasons(mvm
, vif
);
2024 #ifdef CONFIG_IWLWIFI_DEBUGFS
2026 mvm
->keep_vif
= vif
;
2028 /* has unlocked the mutex, so skip that */
2033 iwl_mvm_free_nd(mvm
);
2034 mutex_unlock(&mvm
->mutex
);
2038 ieee80211_iterate_active_interfaces_rtnl(mvm
->hw
,
2039 IEEE80211_IFACE_ITER_NORMAL
,
2040 iwl_mvm_d3_disconnect_iter
, keep
? vif
: NULL
);
2043 /* no need to reset the device in unified images, if successful */
2044 if (unified_image
&& !ret
) {
2045 /* nothing else to do if we already sent D0I3_END_CMD */
2049 ret
= iwl_mvm_send_cmd_pdu(mvm
, D0I3_END_CMD
, 0, 0, NULL
);
2055 * Reconfigure the device in one of the following cases:
2056 * 1. We are not using a unified image
2057 * 2. We are using a unified image but had an error while exiting D3
2059 set_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED
, &mvm
->status
);
2064 static int iwl_mvm_resume_d3(struct iwl_mvm
*mvm
)
2066 iwl_trans_resume(mvm
->trans
);
2068 return __iwl_mvm_resume(mvm
, false);
2071 int iwl_mvm_resume(struct ieee80211_hw
*hw
)
2073 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2076 ret
= iwl_mvm_resume_d3(mvm
);
2078 mvm
->trans
->system_pm_mode
= IWL_PLAT_PM_MODE_DISABLED
;
2080 iwl_mvm_resume_tcm(mvm
);
2082 iwl_fw_runtime_resume(&mvm
->fwrt
);
2087 void iwl_mvm_set_wakeup(struct ieee80211_hw
*hw
, bool enabled
)
2089 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2091 device_set_wakeup_enable(mvm
->trans
->dev
, enabled
);
2094 #ifdef CONFIG_IWLWIFI_DEBUGFS
2095 static int iwl_mvm_d3_test_open(struct inode
*inode
, struct file
*file
)
2097 struct iwl_mvm
*mvm
= inode
->i_private
;
2100 if (mvm
->d3_test_active
)
2103 file
->private_data
= inode
->i_private
;
2107 mvm
->trans
->system_pm_mode
= IWL_PLAT_PM_MODE_D3
;
2109 iwl_mvm_pause_tcm(mvm
, true);
2111 iwl_fw_runtime_suspend(&mvm
->fwrt
);
2113 /* start pseudo D3 */
2115 err
= __iwl_mvm_suspend(mvm
->hw
, mvm
->hw
->wiphy
->wowlan_config
, true);
2122 mvm
->d3_test_active
= true;
2123 mvm
->keep_vif
= NULL
;
2127 static ssize_t
iwl_mvm_d3_test_read(struct file
*file
, char __user
*user_buf
,
2128 size_t count
, loff_t
*ppos
)
2130 struct iwl_mvm
*mvm
= file
->private_data
;
2134 /* read pme_ptr if available */
2135 if (mvm
->d3_test_pme_ptr
) {
2136 pme_asserted
= iwl_trans_read_mem32(mvm
->trans
,
2137 mvm
->d3_test_pme_ptr
);
2142 if (msleep_interruptible(100))
2149 static void iwl_mvm_d3_test_disconn_work_iter(void *_data
, u8
*mac
,
2150 struct ieee80211_vif
*vif
)
2152 /* skip the one we keep connection on */
2156 if (vif
->type
== NL80211_IFTYPE_STATION
)
2157 ieee80211_connection_loss(vif
);
2160 static int iwl_mvm_d3_test_release(struct inode
*inode
, struct file
*file
)
2162 struct iwl_mvm
*mvm
= inode
->i_private
;
2163 bool unified_image
= fw_has_capa(&mvm
->fw
->ucode_capa
,
2164 IWL_UCODE_TLV_CAPA_CNSLDTD_D3_D0_IMG
);
2166 mvm
->d3_test_active
= false;
2168 iwl_fw_dbg_read_d3_debug_data(&mvm
->fwrt
);
2171 __iwl_mvm_resume(mvm
, true);
2174 iwl_mvm_resume_tcm(mvm
);
2176 iwl_fw_runtime_resume(&mvm
->fwrt
);
2178 mvm
->trans
->system_pm_mode
= IWL_PLAT_PM_MODE_DISABLED
;
2180 iwl_abort_notification_waits(&mvm
->notif_wait
);
2181 if (!unified_image
) {
2182 int remaining_time
= 10;
2184 ieee80211_restart_hw(mvm
->hw
);
2186 /* wait for restart and disconnect all interfaces */
2187 while (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2188 remaining_time
> 0) {
2193 if (remaining_time
== 0)
2194 IWL_ERR(mvm
, "Timed out waiting for HW restart!\n");
2197 ieee80211_iterate_active_interfaces_atomic(
2198 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
2199 iwl_mvm_d3_test_disconn_work_iter
, mvm
->keep_vif
);
2204 const struct file_operations iwl_dbgfs_d3_test_ops
= {
2205 .llseek
= no_llseek
,
2206 .open
= iwl_mvm_d3_test_open
,
2207 .read
= iwl_mvm_d3_test_read
,
2208 .release
= iwl_mvm_d3_test_release
,