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 <linuxwifi@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 *****************************************************************************/
65 #include <linux/kernel.h>
66 #include <linux/slab.h>
67 #include <linux/skbuff.h>
68 #include <linux/netdevice.h>
69 #include <linux/etherdevice.h>
71 #include <linux/if_arp.h>
72 #include <linux/devcoredump.h>
73 #include <linux/time.h>
74 #include <net/mac80211.h>
75 #include <net/ieee80211_radiotap.h>
78 #include "iwl-op-mode.h"
82 #include "time-event.h"
83 #include "iwl-eeprom-parse.h"
84 #include "iwl-phy-db.h"
86 #include "iwl-fw-error-dump.h"
89 #include "iwl-nvm-parse.h"
92 static const struct ieee80211_iface_limit iwl_mvm_limits
[] = {
95 .types
= BIT(NL80211_IFTYPE_STATION
),
99 .types
= BIT(NL80211_IFTYPE_AP
) |
100 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
101 BIT(NL80211_IFTYPE_P2P_GO
),
105 .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
),
109 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations
[] = {
111 .num_different_channels
= 2,
113 .limits
= iwl_mvm_limits
,
114 .n_limits
= ARRAY_SIZE(iwl_mvm_limits
),
118 #ifdef CONFIG_PM_SLEEP
119 static const struct nl80211_wowlan_tcp_data_token_feature
120 iwl_mvm_wowlan_tcp_token_feature
= {
123 .bufsize
= IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS
,
126 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support
= {
127 .tok
= &iwl_mvm_wowlan_tcp_token_feature
,
128 .data_payload_max
= IWL_WOWLAN_TCP_MAX_PACKET_LEN
-
129 sizeof(struct ethhdr
) -
130 sizeof(struct iphdr
) -
131 sizeof(struct tcphdr
),
132 .data_interval_max
= 65535, /* __le16 in API */
133 .wake_payload_max
= IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN
-
134 sizeof(struct ethhdr
) -
135 sizeof(struct iphdr
) -
136 sizeof(struct tcphdr
),
141 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
143 * Use the reserved field to indicate magic values.
144 * these values will only be used internally by the driver,
145 * and won't make it to the fw (reserved will be 0).
146 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
147 * be the vif's ip address. in case there is not a single
148 * ip address (0, or more than 1), this attribute will
150 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
151 * the LSB bytes of the vif's mac address
154 BC_FILTER_MAGIC_NONE
= 0,
159 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters
[] = {
163 .frame_type
= BCAST_FILTER_FRAME_TYPE_ALL
,
166 /* frame type - arp, hw type - ethernet */
168 BCAST_FILTER_OFFSET_PAYLOAD_START
,
169 .offset
= sizeof(rfc1042_header
),
170 .val
= cpu_to_be32(0x08060001),
171 .mask
= cpu_to_be32(0xffffffff),
176 BCAST_FILTER_OFFSET_PAYLOAD_START
,
177 .offset
= sizeof(rfc1042_header
) + 2 +
178 sizeof(struct arphdr
) +
179 ETH_ALEN
+ sizeof(__be32
) +
181 .mask
= cpu_to_be32(0xffffffff),
182 /* mark it as special field */
183 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_IP
),
188 /* dhcp offer bcast */
190 .frame_type
= BCAST_FILTER_FRAME_TYPE_IPV4
,
193 /* udp dest port - 68 (bootp client)*/
194 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
195 .offset
= offsetof(struct udphdr
, dest
),
196 .val
= cpu_to_be32(0x00440000),
197 .mask
= cpu_to_be32(0xffff0000),
200 /* dhcp - lsb bytes of client hw address */
201 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
203 .mask
= cpu_to_be32(0xffffffff),
204 /* mark it as special field */
205 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_MAC
),
209 /* last filter must be empty */
214 void iwl_mvm_ref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
216 if (!iwl_mvm_is_d0i3_supported(mvm
))
219 IWL_DEBUG_RPM(mvm
, "Take mvm reference - type %d\n", ref_type
);
220 spin_lock_bh(&mvm
->refs_lock
);
221 mvm
->refs
[ref_type
]++;
222 spin_unlock_bh(&mvm
->refs_lock
);
223 iwl_trans_ref(mvm
->trans
);
226 void iwl_mvm_unref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
228 if (!iwl_mvm_is_d0i3_supported(mvm
))
231 IWL_DEBUG_RPM(mvm
, "Leave mvm reference - type %d\n", ref_type
);
232 spin_lock_bh(&mvm
->refs_lock
);
233 WARN_ON(!mvm
->refs
[ref_type
]--);
234 spin_unlock_bh(&mvm
->refs_lock
);
235 iwl_trans_unref(mvm
->trans
);
238 static void iwl_mvm_unref_all_except(struct iwl_mvm
*mvm
,
239 enum iwl_mvm_ref_type except_ref
)
243 if (!iwl_mvm_is_d0i3_supported(mvm
))
246 spin_lock_bh(&mvm
->refs_lock
);
247 for (i
= 0; i
< IWL_MVM_REF_COUNT
; i
++) {
248 if (except_ref
== i
|| !mvm
->refs
[i
])
251 IWL_DEBUG_RPM(mvm
, "Cleanup: remove mvm ref type %d (%d)\n",
253 for (j
= 0; j
< mvm
->refs
[i
]; j
++)
254 iwl_trans_unref(mvm
->trans
);
257 spin_unlock_bh(&mvm
->refs_lock
);
260 bool iwl_mvm_ref_taken(struct iwl_mvm
*mvm
)
265 if (!iwl_mvm_is_d0i3_supported(mvm
))
268 spin_lock_bh(&mvm
->refs_lock
);
269 for (i
= 0; i
< IWL_MVM_REF_COUNT
; i
++) {
275 spin_unlock_bh(&mvm
->refs_lock
);
280 int iwl_mvm_ref_sync(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
282 iwl_mvm_ref(mvm
, ref_type
);
284 if (!wait_event_timeout(mvm
->d0i3_exit_waitq
,
285 !test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
),
288 iwl_mvm_unref(mvm
, ref_type
);
295 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm
*mvm
)
299 memset(mvm
->phy_ctxts
, 0, sizeof(mvm
->phy_ctxts
));
300 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
301 mvm
->phy_ctxts
[i
].id
= i
;
302 mvm
->phy_ctxts
[i
].ref
= 0;
306 struct ieee80211_regdomain
*iwl_mvm_get_regdomain(struct wiphy
*wiphy
,
308 enum iwl_mcc_source src_id
,
311 struct ieee80211_regdomain
*regd
= NULL
;
312 struct ieee80211_hw
*hw
= wiphy_to_ieee80211_hw(wiphy
);
313 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
314 struct iwl_mcc_update_resp
*resp
;
316 IWL_DEBUG_LAR(mvm
, "Getting regdomain data for %s from FW\n", alpha2
);
318 lockdep_assert_held(&mvm
->mutex
);
320 resp
= iwl_mvm_update_mcc(mvm
, alpha2
, src_id
);
321 if (IS_ERR_OR_NULL(resp
)) {
322 IWL_DEBUG_LAR(mvm
, "Could not get update from FW %d\n",
323 PTR_ERR_OR_ZERO(resp
));
328 *changed
= (resp
->status
== MCC_RESP_NEW_CHAN_PROFILE
);
330 regd
= iwl_parse_nvm_mcc_info(mvm
->trans
->dev
, mvm
->cfg
,
331 __le32_to_cpu(resp
->n_channels
),
333 __le16_to_cpu(resp
->mcc
));
334 /* Store the return source id */
335 src_id
= resp
->source_id
;
337 if (IS_ERR_OR_NULL(regd
)) {
338 IWL_DEBUG_LAR(mvm
, "Could not get parse update from FW %d\n",
339 PTR_ERR_OR_ZERO(regd
));
343 IWL_DEBUG_LAR(mvm
, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
344 regd
->alpha2
, regd
->alpha2
[0], regd
->alpha2
[1], src_id
);
345 mvm
->lar_regdom_set
= true;
346 mvm
->mcc_src
= src_id
;
352 void iwl_mvm_update_changed_regdom(struct iwl_mvm
*mvm
)
355 struct ieee80211_regdomain
*regd
;
357 if (!iwl_mvm_is_lar_supported(mvm
))
360 regd
= iwl_mvm_get_current_regdomain(mvm
, &changed
);
361 if (!IS_ERR_OR_NULL(regd
)) {
362 /* only update the regulatory core if changed */
364 regulatory_set_wiphy_regd(mvm
->hw
->wiphy
, regd
);
370 struct ieee80211_regdomain
*iwl_mvm_get_current_regdomain(struct iwl_mvm
*mvm
,
373 return iwl_mvm_get_regdomain(mvm
->hw
->wiphy
, "ZZ",
374 iwl_mvm_is_wifi_mcc_supported(mvm
) ?
375 MCC_SOURCE_GET_CURRENT
:
376 MCC_SOURCE_OLD_FW
, changed
);
379 int iwl_mvm_init_fw_regd(struct iwl_mvm
*mvm
)
381 enum iwl_mcc_source used_src
;
382 struct ieee80211_regdomain
*regd
;
385 const struct ieee80211_regdomain
*r
=
386 rtnl_dereference(mvm
->hw
->wiphy
->regd
);
391 /* save the last source in case we overwrite it below */
392 used_src
= mvm
->mcc_src
;
393 if (iwl_mvm_is_wifi_mcc_supported(mvm
)) {
394 /* Notify the firmware we support wifi location updates */
395 regd
= iwl_mvm_get_current_regdomain(mvm
, NULL
);
396 if (!IS_ERR_OR_NULL(regd
))
400 /* Now set our last stored MCC and source */
401 regd
= iwl_mvm_get_regdomain(mvm
->hw
->wiphy
, r
->alpha2
, used_src
,
403 if (IS_ERR_OR_NULL(regd
))
406 /* update cfg80211 if the regdomain was changed */
408 ret
= regulatory_set_wiphy_regd_sync_rtnl(mvm
->hw
->wiphy
, regd
);
416 int iwl_mvm_mac_setup_register(struct iwl_mvm
*mvm
)
418 struct ieee80211_hw
*hw
= mvm
->hw
;
420 static const u32 mvm_ciphers
[] = {
421 WLAN_CIPHER_SUITE_WEP40
,
422 WLAN_CIPHER_SUITE_WEP104
,
423 WLAN_CIPHER_SUITE_TKIP
,
424 WLAN_CIPHER_SUITE_CCMP
,
427 /* Tell mac80211 our characteristics */
428 ieee80211_hw_set(hw
, SIGNAL_DBM
);
429 ieee80211_hw_set(hw
, SPECTRUM_MGMT
);
430 ieee80211_hw_set(hw
, REPORTS_TX_ACK_STATUS
);
431 ieee80211_hw_set(hw
, QUEUE_CONTROL
);
432 ieee80211_hw_set(hw
, WANT_MONITOR_VIF
);
433 ieee80211_hw_set(hw
, SUPPORTS_PS
);
434 ieee80211_hw_set(hw
, SUPPORTS_DYNAMIC_PS
);
435 ieee80211_hw_set(hw
, AMPDU_AGGREGATION
);
436 ieee80211_hw_set(hw
, TIMING_BEACON_ONLY
);
437 ieee80211_hw_set(hw
, CONNECTION_MONITOR
);
438 ieee80211_hw_set(hw
, CHANCTX_STA_CSA
);
439 ieee80211_hw_set(hw
, SUPPORT_FAST_XMIT
);
440 ieee80211_hw_set(hw
, SUPPORTS_CLONED_SKBS
);
441 ieee80211_hw_set(hw
, SUPPORTS_AMSDU_IN_AMPDU
);
442 ieee80211_hw_set(hw
, NEEDS_UNIQUE_STA_ADDR
);
444 if (mvm
->trans
->max_skb_frags
)
445 hw
->netdev_features
= NETIF_F_HIGHDMA
| NETIF_F_SG
;
447 hw
->queues
= mvm
->first_agg_queue
;
448 hw
->offchannel_tx_hw_queue
= IWL_MVM_OFFCHANNEL_QUEUE
;
449 hw
->radiotap_mcs_details
|= IEEE80211_RADIOTAP_MCS_HAVE_FEC
|
450 IEEE80211_RADIOTAP_MCS_HAVE_STBC
;
451 hw
->radiotap_vht_details
|= IEEE80211_RADIOTAP_VHT_KNOWN_STBC
|
452 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED
;
453 hw
->rate_control_algorithm
= "iwl-mvm-rs";
454 hw
->uapsd_queues
= IWL_MVM_UAPSD_QUEUES
;
455 hw
->uapsd_max_sp_len
= IWL_UAPSD_MAX_SP
;
457 BUILD_BUG_ON(ARRAY_SIZE(mvm
->ciphers
) < ARRAY_SIZE(mvm_ciphers
) + 2);
458 memcpy(mvm
->ciphers
, mvm_ciphers
, sizeof(mvm_ciphers
));
459 hw
->wiphy
->n_cipher_suites
= ARRAY_SIZE(mvm_ciphers
);
460 hw
->wiphy
->cipher_suites
= mvm
->ciphers
;
463 * Enable 11w if advertised by firmware and software crypto
464 * is not enabled (as the firmware will interpret some mgmt
465 * packets, so enabling it with software crypto isn't safe)
467 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_MFP
&&
468 !iwlwifi_mod_params
.sw_crypto
) {
469 ieee80211_hw_set(hw
, MFP_CAPABLE
);
470 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] =
471 WLAN_CIPHER_SUITE_AES_CMAC
;
472 hw
->wiphy
->n_cipher_suites
++;
475 /* currently FW API supports only one optional cipher scheme */
476 if (mvm
->fw
->cs
[0].cipher
) {
477 mvm
->hw
->n_cipher_schemes
= 1;
478 mvm
->hw
->cipher_schemes
= &mvm
->fw
->cs
[0];
479 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] =
480 mvm
->fw
->cs
[0].cipher
;
481 hw
->wiphy
->n_cipher_suites
++;
484 ieee80211_hw_set(hw
, SINGLE_SCAN_ON_ALL_BANDS
);
485 hw
->wiphy
->features
|=
486 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR
|
487 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR
|
488 NL80211_FEATURE_ND_RANDOM_MAC_ADDR
;
490 hw
->sta_data_size
= sizeof(struct iwl_mvm_sta
);
491 hw
->vif_data_size
= sizeof(struct iwl_mvm_vif
);
492 hw
->chanctx_data_size
= sizeof(u16
);
494 hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
495 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
496 BIT(NL80211_IFTYPE_AP
) |
497 BIT(NL80211_IFTYPE_P2P_GO
) |
498 BIT(NL80211_IFTYPE_P2P_DEVICE
) |
499 BIT(NL80211_IFTYPE_ADHOC
);
501 hw
->wiphy
->flags
|= WIPHY_FLAG_IBSS_RSN
;
502 hw
->wiphy
->regulatory_flags
|= REGULATORY_ENABLE_RELAX_NO_IR
;
503 if (iwl_mvm_is_lar_supported(mvm
))
504 hw
->wiphy
->regulatory_flags
|= REGULATORY_WIPHY_SELF_MANAGED
;
506 hw
->wiphy
->regulatory_flags
|= REGULATORY_CUSTOM_REG
|
507 REGULATORY_DISABLE_BEACON_HINTS
;
509 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_GO_UAPSD
)
510 hw
->wiphy
->flags
|= WIPHY_FLAG_AP_UAPSD
;
512 hw
->wiphy
->flags
|= WIPHY_FLAG_HAS_CHANNEL_SWITCH
;
514 hw
->wiphy
->iface_combinations
= iwl_mvm_iface_combinations
;
515 hw
->wiphy
->n_iface_combinations
=
516 ARRAY_SIZE(iwl_mvm_iface_combinations
);
518 hw
->wiphy
->max_remain_on_channel_duration
= 10000;
519 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
520 /* we can compensate an offset of up to 3 channels = 15 MHz */
521 hw
->wiphy
->max_adj_channel_rssi_comp
= 3 * 5;
523 /* Extract MAC address */
524 memcpy(mvm
->addresses
[0].addr
, mvm
->nvm_data
->hw_addr
, ETH_ALEN
);
525 hw
->wiphy
->addresses
= mvm
->addresses
;
526 hw
->wiphy
->n_addresses
= 1;
528 /* Extract additional MAC addresses if available */
529 num_mac
= (mvm
->nvm_data
->n_hw_addrs
> 1) ?
530 min(IWL_MVM_MAX_ADDRESSES
, mvm
->nvm_data
->n_hw_addrs
) : 1;
532 for (i
= 1; i
< num_mac
; i
++) {
533 memcpy(mvm
->addresses
[i
].addr
, mvm
->addresses
[i
-1].addr
,
535 mvm
->addresses
[i
].addr
[5]++;
536 hw
->wiphy
->n_addresses
++;
539 iwl_mvm_reset_phy_ctxts(mvm
);
541 hw
->wiphy
->max_scan_ie_len
= iwl_mvm_max_scan_ie_len(mvm
);
543 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
545 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK
& IWL_MVM_SCAN_MASK
);
546 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS
> HWEIGHT32(IWL_MVM_SCAN_MASK
) ||
547 IWL_MVM_MAX_LMAC_SCANS
> HWEIGHT32(IWL_MVM_SCAN_MASK
));
549 if (fw_has_capa(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_CAPA_UMAC_SCAN
))
550 mvm
->max_scans
= IWL_MVM_MAX_UMAC_SCANS
;
552 mvm
->max_scans
= IWL_MVM_MAX_LMAC_SCANS
;
554 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
555 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
556 &mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
];
557 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
].n_channels
) {
558 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
559 &mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
];
561 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
562 IWL_UCODE_TLV_CAPA_BEAMFORMER
) &&
563 fw_has_api(&mvm
->fw
->ucode_capa
,
564 IWL_UCODE_TLV_API_LQ_SS_PARAMS
))
565 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
]->vht_cap
.cap
|=
566 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE
;
569 hw
->wiphy
->hw_version
= mvm
->trans
->hw_id
;
571 if (iwlmvm_mod_params
.power_scheme
!= IWL_POWER_SCHEME_CAM
)
572 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
574 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
576 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_SCHED_SCAN
;
577 hw
->wiphy
->max_sched_scan_ssids
= PROBE_OPTION_MAX
;
578 hw
->wiphy
->max_match_sets
= IWL_SCAN_MAX_PROFILES
;
579 /* we create the 802.11 header and zero length SSID IE. */
580 hw
->wiphy
->max_sched_scan_ie_len
=
581 SCAN_OFFLOAD_PROBE_REQ_SIZE
- 24 - 2;
582 hw
->wiphy
->max_sched_scan_plans
= IWL_MAX_SCHED_SCAN_PLANS
;
583 hw
->wiphy
->max_sched_scan_plan_interval
= U16_MAX
;
586 * the firmware uses u8 for num of iterations, but 0xff is saved for
587 * infinite loop, so the maximum number of iterations is actually 254.
589 hw
->wiphy
->max_sched_scan_plan_iterations
= 254;
591 hw
->wiphy
->features
|= NL80211_FEATURE_P2P_GO_CTWIN
|
592 NL80211_FEATURE_LOW_PRIORITY_SCAN
|
593 NL80211_FEATURE_P2P_GO_OPPPS
|
594 NL80211_FEATURE_DYNAMIC_SMPS
|
595 NL80211_FEATURE_STATIC_SMPS
|
596 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION
;
598 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
599 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT
))
600 hw
->wiphy
->features
|= NL80211_FEATURE_TX_POWER_INSERTION
;
601 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
602 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT
))
603 hw
->wiphy
->features
|= NL80211_FEATURE_QUIET
;
605 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
606 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT
))
607 hw
->wiphy
->features
|=
608 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES
;
610 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
611 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT
))
612 hw
->wiphy
->features
|= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES
;
614 mvm
->rts_threshold
= IEEE80211_MAX_RTS_THRESHOLD
;
616 #ifdef CONFIG_PM_SLEEP
617 if (iwl_mvm_is_d0i3_supported(mvm
) &&
618 device_can_wakeup(mvm
->trans
->dev
)) {
619 mvm
->wowlan
.flags
= WIPHY_WOWLAN_ANY
;
620 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
623 if (mvm
->fw
->img
[IWL_UCODE_WOWLAN
].sec
[0].len
&&
624 mvm
->trans
->ops
->d3_suspend
&&
625 mvm
->trans
->ops
->d3_resume
&&
626 device_can_wakeup(mvm
->trans
->dev
)) {
627 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_MAGIC_PKT
|
628 WIPHY_WOWLAN_DISCONNECT
|
629 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
630 WIPHY_WOWLAN_RFKILL_RELEASE
|
631 WIPHY_WOWLAN_NET_DETECT
;
632 if (!iwlwifi_mod_params
.sw_crypto
)
633 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
634 WIPHY_WOWLAN_GTK_REKEY_FAILURE
|
635 WIPHY_WOWLAN_4WAY_HANDSHAKE
;
637 mvm
->wowlan
.n_patterns
= IWL_WOWLAN_MAX_PATTERNS
;
638 mvm
->wowlan
.pattern_min_len
= IWL_WOWLAN_MIN_PATTERN_LEN
;
639 mvm
->wowlan
.pattern_max_len
= IWL_WOWLAN_MAX_PATTERN_LEN
;
640 mvm
->wowlan
.max_nd_match_sets
= IWL_SCAN_MAX_PROFILES
;
641 mvm
->wowlan
.tcp
= &iwl_mvm_wowlan_tcp_support
;
642 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
646 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
647 /* assign default bcast filtering configuration */
648 mvm
->bcast_filters
= iwl_mvm_default_bcast_filters
;
651 ret
= iwl_mvm_leds_init(mvm
);
655 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
656 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT
)) {
657 IWL_DEBUG_TDLS(mvm
, "TDLS supported\n");
658 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_TDLS
;
659 ieee80211_hw_set(hw
, TDLS_WIDER_BW
);
662 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
663 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH
)) {
664 IWL_DEBUG_TDLS(mvm
, "TDLS channel switch supported\n");
665 hw
->wiphy
->features
|= NL80211_FEATURE_TDLS_CHANNEL_SWITCH
;
668 hw
->netdev_features
|= mvm
->cfg
->features
;
669 if (!iwl_mvm_is_csum_supported(mvm
))
670 hw
->netdev_features
&= ~NETIF_F_RXCSUM
;
672 if (IWL_MVM_SW_TX_CSUM_OFFLOAD
)
673 hw
->netdev_features
|= NETIF_F_IP_CSUM
| NETIF_F_IPV6_CSUM
|
674 NETIF_F_TSO
| NETIF_F_TSO6
;
676 ret
= ieee80211_register_hw(mvm
->hw
);
678 iwl_mvm_leds_exit(mvm
);
683 static bool iwl_mvm_defer_tx(struct iwl_mvm
*mvm
,
684 struct ieee80211_sta
*sta
,
687 struct iwl_mvm_sta
*mvmsta
;
691 * double check the IN_D0I3 flag both before and after
692 * taking the spinlock, in order to prevent taking
693 * the spinlock when not needed.
695 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
)))
698 spin_lock(&mvm
->d0i3_tx_lock
);
700 * testing the flag again ensures the skb dequeue
701 * loop (on d0i3 exit) hasn't run yet.
703 if (!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
))
706 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
707 if (mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
||
708 mvmsta
->sta_id
!= mvm
->d0i3_ap_sta_id
)
711 __skb_queue_tail(&mvm
->d0i3_tx
, skb
);
712 ieee80211_stop_queues(mvm
->hw
);
715 iwl_mvm_ref(mvm
, IWL_MVM_REF_TX
);
716 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX
);
720 spin_unlock(&mvm
->d0i3_tx_lock
);
724 static void iwl_mvm_mac_tx(struct ieee80211_hw
*hw
,
725 struct ieee80211_tx_control
*control
,
728 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
729 struct ieee80211_sta
*sta
= control
->sta
;
730 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
731 struct ieee80211_hdr
*hdr
= (void *)skb
->data
;
733 if (iwl_mvm_is_radio_killed(mvm
)) {
734 IWL_DEBUG_DROP(mvm
, "Dropping - RF/CT KILL\n");
738 if (IEEE80211_SKB_CB(skb
)->hw_queue
== IWL_MVM_OFFCHANNEL_QUEUE
&&
739 !test_bit(IWL_MVM_STATUS_ROC_RUNNING
, &mvm
->status
) &&
740 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING
, &mvm
->status
))
743 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
744 if (unlikely(info
->flags
& IEEE80211_TX_CTL_NO_PS_BUFFER
&&
745 ieee80211_is_mgmt(hdr
->frame_control
) &&
746 !ieee80211_is_deauth(hdr
->frame_control
) &&
747 !ieee80211_is_disassoc(hdr
->frame_control
) &&
748 !ieee80211_is_action(hdr
->frame_control
)))
752 if (iwl_mvm_defer_tx(mvm
, sta
, skb
))
754 if (iwl_mvm_tx_skb(mvm
, skb
, sta
))
759 if (iwl_mvm_tx_skb_non_sta(mvm
, skb
))
763 ieee80211_free_txskb(hw
, skb
);
766 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg
*cfg
)
768 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
)
773 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg
*cfg
)
775 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
)
777 if (iwlwifi_mod_params
.disable_11n
& IWL_ENABLE_HT_TXAGG
)
780 /* enabled by default */
784 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
786 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
788 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
792 iwl_mvm_ampdu_check_trigger(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
793 struct ieee80211_sta
*sta
, u16 tid
, u16 rx_ba_ssn
,
794 enum ieee80211_ampdu_mlme_action action
)
796 struct iwl_fw_dbg_trigger_tlv
*trig
;
797 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
799 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
802 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
803 ba_trig
= (void *)trig
->data
;
805 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
809 case IEEE80211_AMPDU_TX_OPERATIONAL
: {
810 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
811 struct iwl_mvm_tid_data
*tid_data
= &mvmsta
->tid_data
[tid
];
813 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->tx_ba_start
, tid
,
814 "TX AGG START: MAC %pM tid %d ssn %d\n",
815 sta
->addr
, tid
, tid_data
->ssn
);
818 case IEEE80211_AMPDU_TX_STOP_CONT
:
819 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->tx_ba_stop
, tid
,
820 "TX AGG STOP: MAC %pM tid %d\n",
823 case IEEE80211_AMPDU_RX_START
:
824 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->rx_ba_start
, tid
,
825 "RX AGG START: MAC %pM tid %d ssn %d\n",
826 sta
->addr
, tid
, rx_ba_ssn
);
828 case IEEE80211_AMPDU_RX_STOP
:
829 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->rx_ba_stop
, tid
,
830 "RX AGG STOP: MAC %pM tid %d\n",
838 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw
*hw
,
839 struct ieee80211_vif
*vif
,
840 struct ieee80211_ampdu_params
*params
)
842 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
844 bool tx_agg_ref
= false;
845 struct ieee80211_sta
*sta
= params
->sta
;
846 enum ieee80211_ampdu_mlme_action action
= params
->action
;
847 u16 tid
= params
->tid
;
848 u16
*ssn
= ¶ms
->ssn
;
849 u8 buf_size
= params
->buf_size
;
851 IWL_DEBUG_HT(mvm
, "A-MPDU action on addr %pM tid %d: action %d\n",
852 sta
->addr
, tid
, action
);
854 if (!(mvm
->nvm_data
->sku_cap_11n_enable
))
857 /* return from D0i3 before starting a new Tx aggregation */
859 case IEEE80211_AMPDU_TX_START
:
860 case IEEE80211_AMPDU_TX_STOP_CONT
:
861 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
862 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
863 case IEEE80211_AMPDU_TX_OPERATIONAL
:
865 * for tx start, wait synchronously until D0i3 exit to
866 * get the correct sequence number for the tid.
867 * additionally, some other ampdu actions use direct
868 * target access, which is not handled automatically
869 * by the trans layer (unlike commands), so wait for
870 * d0i3 exit in these cases as well.
872 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_TX_AGG
);
882 mutex_lock(&mvm
->mutex
);
885 case IEEE80211_AMPDU_RX_START
:
886 if (!iwl_enable_rx_ampdu(mvm
->cfg
)) {
890 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, *ssn
, true, buf_size
);
892 case IEEE80211_AMPDU_RX_STOP
:
893 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, 0, false, buf_size
);
895 case IEEE80211_AMPDU_TX_START
:
896 if (!iwl_enable_tx_ampdu(mvm
->cfg
)) {
900 ret
= iwl_mvm_sta_tx_agg_start(mvm
, vif
, sta
, tid
, ssn
);
902 case IEEE80211_AMPDU_TX_STOP_CONT
:
903 ret
= iwl_mvm_sta_tx_agg_stop(mvm
, vif
, sta
, tid
);
905 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
906 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
907 ret
= iwl_mvm_sta_tx_agg_flush(mvm
, vif
, sta
, tid
);
909 case IEEE80211_AMPDU_TX_OPERATIONAL
:
910 ret
= iwl_mvm_sta_tx_agg_oper(mvm
, vif
, sta
, tid
, buf_size
);
921 if (action
== IEEE80211_AMPDU_RX_START
)
924 iwl_mvm_ampdu_check_trigger(mvm
, vif
, sta
, tid
,
927 mutex_unlock(&mvm
->mutex
);
930 * If the tid is marked as started, we won't use it for offloaded
931 * traffic on the next D0i3 entry. It's safe to unref.
934 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX_AGG
);
939 static void iwl_mvm_cleanup_iterator(void *data
, u8
*mac
,
940 struct ieee80211_vif
*vif
)
942 struct iwl_mvm
*mvm
= data
;
943 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
945 mvmvif
->uploaded
= false;
946 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
948 spin_lock_bh(&mvm
->time_event_lock
);
949 iwl_mvm_te_clear_data(mvm
, &mvmvif
->time_event_data
);
950 spin_unlock_bh(&mvm
->time_event_lock
);
952 mvmvif
->phy_ctxt
= NULL
;
953 memset(&mvmvif
->bf_data
, 0, sizeof(mvmvif
->bf_data
));
956 static void iwl_mvm_restart_cleanup(struct iwl_mvm
*mvm
)
958 /* clear the D3 reconfig, we only need it to avoid dumping a
959 * firmware coredump on reconfiguration, we shouldn't do that
960 * on D3->D0 transition
962 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG
, &mvm
->status
)) {
963 mvm
->fw_dump_desc
= &iwl_mvm_dump_desc_assert
;
964 iwl_mvm_fw_error_dump(mvm
);
967 /* cleanup all stale references (scan, roc), but keep the
968 * ucode_down ref until reconfig is complete
970 iwl_mvm_unref_all_except(mvm
, IWL_MVM_REF_UCODE_DOWN
);
972 iwl_trans_stop_device(mvm
->trans
);
974 mvm
->scan_status
= 0;
975 mvm
->ps_disabled
= false;
976 mvm
->calibrating
= false;
978 /* just in case one was running */
979 iwl_mvm_cleanup_roc_te(mvm
);
980 ieee80211_remain_on_channel_expired(mvm
->hw
);
983 * cleanup all interfaces, even inactive ones, as some might have
984 * gone down during the HW restart
986 ieee80211_iterate_interfaces(mvm
->hw
, 0, iwl_mvm_cleanup_iterator
, mvm
);
988 mvm
->p2p_device_vif
= NULL
;
989 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
991 iwl_mvm_reset_phy_ctxts(mvm
);
992 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
993 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
994 memset(mvm
->tfd_drained
, 0, sizeof(mvm
->tfd_drained
));
995 memset(&mvm
->last_bt_notif
, 0, sizeof(mvm
->last_bt_notif
));
996 memset(&mvm
->last_bt_notif_old
, 0, sizeof(mvm
->last_bt_notif_old
));
997 memset(&mvm
->last_bt_ci_cmd
, 0, sizeof(mvm
->last_bt_ci_cmd
));
998 memset(&mvm
->last_bt_ci_cmd_old
, 0, sizeof(mvm
->last_bt_ci_cmd_old
));
999 memset(&mvm
->bt_ack_kill_msk
, 0, sizeof(mvm
->bt_ack_kill_msk
));
1000 memset(&mvm
->bt_cts_kill_msk
, 0, sizeof(mvm
->bt_cts_kill_msk
));
1002 ieee80211_wake_queues(mvm
->hw
);
1004 /* clear any stale d0i3 state */
1005 clear_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
);
1008 mvm
->rx_ba_sessions
= 0;
1009 mvm
->fw_dbg_conf
= FW_DBG_INVALID
;
1011 /* keep statistics ticking */
1012 iwl_mvm_accu_radio_stats(mvm
);
1015 int __iwl_mvm_mac_start(struct iwl_mvm
*mvm
)
1019 lockdep_assert_held(&mvm
->mutex
);
1021 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
1022 /* Clean up some internal and mac80211 state on restart */
1023 iwl_mvm_restart_cleanup(mvm
);
1025 /* Hold the reference to prevent runtime suspend while
1026 * the start procedure runs. It's a bit confusing
1027 * that the UCODE_DOWN reference is taken, but it just
1028 * means "UCODE is not UP yet". ( TODO: rename this
1031 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1033 ret
= iwl_mvm_up(mvm
);
1035 if (ret
&& test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
1036 /* Something went wrong - we need to finish some cleanup
1037 * that normally iwl_mvm_mac_restart_complete() below
1040 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1041 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
1047 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
1049 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1052 /* Some hw restart cleanups must not hold the mutex */
1053 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
1055 * Make sure we are out of d0i3. This is needed
1056 * to make sure the reference accounting is correct
1057 * (and there is no stale d0i3_exit_work).
1059 wait_event_timeout(mvm
->d0i3_exit_waitq
,
1060 !test_bit(IWL_MVM_STATUS_IN_D0I3
,
1065 mutex_lock(&mvm
->mutex
);
1066 ret
= __iwl_mvm_mac_start(mvm
);
1067 mutex_unlock(&mvm
->mutex
);
1072 static void iwl_mvm_restart_complete(struct iwl_mvm
*mvm
)
1076 mutex_lock(&mvm
->mutex
);
1078 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1079 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
1080 ret
= iwl_mvm_update_quotas(mvm
, true, NULL
);
1082 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
1085 /* allow transport/FW low power modes */
1086 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1089 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1090 * of packets the FW sent out, so we must reconnect.
1092 iwl_mvm_teardown_tdls_peers(mvm
);
1094 mutex_unlock(&mvm
->mutex
);
1097 static void iwl_mvm_resume_complete(struct iwl_mvm
*mvm
)
1099 if (iwl_mvm_is_d0i3_supported(mvm
) &&
1100 iwl_mvm_enter_d0i3_on_suspend(mvm
))
1101 WARN_ONCE(!wait_event_timeout(mvm
->d0i3_exit_waitq
,
1102 !test_bit(IWL_MVM_STATUS_IN_D0I3
,
1105 "D0i3 exit on resume timed out\n");
1109 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw
*hw
,
1110 enum ieee80211_reconfig_type reconfig_type
)
1112 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1114 switch (reconfig_type
) {
1115 case IEEE80211_RECONFIG_TYPE_RESTART
:
1116 iwl_mvm_restart_complete(mvm
);
1118 case IEEE80211_RECONFIG_TYPE_SUSPEND
:
1119 iwl_mvm_resume_complete(mvm
);
1124 void __iwl_mvm_mac_stop(struct iwl_mvm
*mvm
)
1126 lockdep_assert_held(&mvm
->mutex
);
1128 /* firmware counters are obviously reset now, but we shouldn't
1129 * partially track so also clear the fw_reset_accu counters.
1131 memset(&mvm
->accu_radio_stats
, 0, sizeof(mvm
->accu_radio_stats
));
1133 /* async_handlers_wk is now blocked */
1136 * The work item could be running or queued if the
1137 * ROC time event stops just as we get here.
1139 flush_work(&mvm
->roc_done_wk
);
1141 iwl_trans_stop_device(mvm
->trans
);
1143 iwl_mvm_async_handlers_purge(mvm
);
1144 /* async_handlers_list is empty and will stay empty: HW is stopped */
1146 /* the fw is stopped, the aux sta is dead: clean up driver state */
1147 iwl_mvm_del_aux_sta(mvm
);
1150 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1151 * won't be called in this case).
1152 * But make sure to cleanup interfaces that have gone down before/during
1153 * HW restart was requested.
1155 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
1156 ieee80211_iterate_interfaces(mvm
->hw
, 0,
1157 iwl_mvm_cleanup_iterator
, mvm
);
1159 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1160 * make sure there's nothing left there and warn if any is found.
1162 if (fw_has_capa(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_CAPA_UMAC_SCAN
)) {
1165 for (i
= 0; i
< mvm
->max_scans
; i
++) {
1166 if (WARN_ONCE(mvm
->scan_uid_status
[i
],
1167 "UMAC scan UID %d status was not cleaned\n",
1169 mvm
->scan_uid_status
[i
] = 0;
1173 mvm
->ucode_loaded
= false;
1176 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
1178 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1180 flush_work(&mvm
->d0i3_exit_work
);
1181 flush_work(&mvm
->async_handlers_wk
);
1182 cancel_delayed_work_sync(&mvm
->fw_dump_wk
);
1183 iwl_mvm_free_fw_dump_desc(mvm
);
1185 mutex_lock(&mvm
->mutex
);
1186 __iwl_mvm_mac_stop(mvm
);
1187 mutex_unlock(&mvm
->mutex
);
1190 * The worker might have been waiting for the mutex, let it run and
1191 * discover that its list is now empty.
1193 cancel_work_sync(&mvm
->async_handlers_wk
);
1196 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
1200 lockdep_assert_held(&mvm
->mutex
);
1202 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
1203 if (!mvm
->phy_ctxts
[i
].ref
)
1204 return &mvm
->phy_ctxts
[i
];
1206 IWL_ERR(mvm
, "No available PHY context\n");
1210 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
1213 struct iwl_dev_tx_power_cmd cmd
= {
1214 .v2
.set_mode
= cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC
),
1215 .v2
.mac_context_id
=
1216 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif
)->id
),
1217 .v2
.pwr_restriction
= cpu_to_le16(8 * tx_power
),
1219 int len
= sizeof(cmd
);
1221 if (tx_power
== IWL_DEFAULT_MAX_TX_POWER
)
1222 cmd
.v2
.pwr_restriction
= cpu_to_le16(IWL_DEV_MAX_TX_POWER
);
1224 if (!fw_has_api(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_API_TX_POWER_CHAIN
))
1225 len
= sizeof(cmd
.v2
);
1227 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, 0, len
, &cmd
);
1230 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
1231 struct ieee80211_vif
*vif
)
1233 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1234 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1240 * make sure D0i3 exit is completed, otherwise a target access
1241 * during tx queue configuration could be done when still in
1244 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_ADD_IF
);
1249 * Not much to do here. The stack will not allow interface
1250 * types or combinations that we didn't advertise, so we
1251 * don't really have to check the types.
1254 mutex_lock(&mvm
->mutex
);
1256 /* make sure that beacon statistics don't go backwards with FW reset */
1257 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
1258 mvmvif
->beacon_stats
.accu_num_beacons
+=
1259 mvmvif
->beacon_stats
.num_beacons
;
1261 /* Allocate resources for the MAC context, and add it to the fw */
1262 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
1266 /* Counting number of interfaces is needed for legacy PM */
1267 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1271 * The AP binding flow can be done only after the beacon
1272 * template is configured (which happens only in the mac80211
1273 * start_ap() flow), and adding the broadcast station can happen
1274 * only after the binding.
1275 * In addition, since modifying the MAC before adding a bcast
1276 * station is not allowed by the FW, delay the adding of MAC context to
1277 * the point where we can also add the bcast station.
1278 * In short: there's not much we can do at this point, other than
1279 * allocating resources :)
1281 if (vif
->type
== NL80211_IFTYPE_AP
||
1282 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1283 ret
= iwl_mvm_alloc_bcast_sta(mvm
, vif
);
1285 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
1289 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1293 mvmvif
->features
|= hw
->netdev_features
;
1295 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1299 ret
= iwl_mvm_power_update_mac(mvm
);
1301 goto out_remove_mac
;
1303 /* beacon filtering */
1304 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
1306 goto out_remove_mac
;
1308 if (!mvm
->bf_allowed_vif
&&
1309 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
) {
1310 mvm
->bf_allowed_vif
= mvmvif
;
1311 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
1312 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
1316 * P2P_DEVICE interface does not have a channel context assigned to it,
1317 * so a dedicated PHY context is allocated to it and the corresponding
1318 * MAC context is bound to it at this stage.
1320 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1322 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1323 if (!mvmvif
->phy_ctxt
) {
1328 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1329 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1333 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
);
1337 /* Save a pointer to p2p device vif, so it can later be used to
1338 * update the p2p device MAC when a GO is started/stopped */
1339 mvm
->p2p_device_vif
= vif
;
1342 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1346 iwl_mvm_binding_remove_vif(mvm
, vif
);
1348 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1350 if (mvm
->bf_allowed_vif
== mvmvif
) {
1351 mvm
->bf_allowed_vif
= NULL
;
1352 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1353 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1356 mvmvif
->phy_ctxt
= NULL
;
1357 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1359 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1362 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1364 mutex_unlock(&mvm
->mutex
);
1366 iwl_mvm_unref(mvm
, IWL_MVM_REF_ADD_IF
);
1371 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
1372 struct ieee80211_vif
*vif
)
1374 u32 tfd_msk
= iwl_mvm_mac_get_queues_mask(vif
);
1378 * mac80211 first removes all the stations of the vif and
1379 * then removes the vif. When it removes a station it also
1380 * flushes the AMPDU session. So by now, all the AMPDU sessions
1381 * of all the stations of this vif are closed, and the queues
1382 * of these AMPDU sessions are properly closed.
1383 * We still need to take care of the shared queues of the vif.
1386 mutex_lock(&mvm
->mutex
);
1387 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, 0);
1388 mutex_unlock(&mvm
->mutex
);
1391 * There are transports that buffer a few frames in the host.
1392 * For these, the flush above isn't enough since while we were
1393 * flushing, the transport might have sent more frames to the
1394 * device. To solve this, wait here until the transport is
1395 * empty. Technically, this could have replaced the flush
1396 * above, but flush is much faster than draining. So flush
1397 * first, and drain to make sure we have no frames in the
1398 * transport anymore.
1399 * If a station still had frames on the shared queues, it is
1400 * already marked as draining, so to complete the draining, we
1401 * just need to wait until the transport is empty.
1403 iwl_trans_wait_tx_queue_empty(mvm
->trans
, tfd_msk
);
1406 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1408 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1409 * We assume here that all the packets sent to the OFFCHANNEL
1410 * queue are sent in ROC session.
1412 flush_work(&mvm
->roc_done_wk
);
1415 * By now, all the AC queues are empty. The AGG queues are
1416 * empty too. We already got all the Tx responses for all the
1417 * packets in the queues. The drain work can have been
1418 * triggered. Flush it.
1420 flush_work(&mvm
->sta_drained_wk
);
1424 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
1425 struct ieee80211_vif
*vif
)
1427 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1428 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1430 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1432 mutex_lock(&mvm
->mutex
);
1434 if (mvm
->bf_allowed_vif
== mvmvif
) {
1435 mvm
->bf_allowed_vif
= NULL
;
1436 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1437 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1440 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
1443 * For AP/GO interface, the tear down of the resources allocated to the
1444 * interface is be handled as part of the stop_ap flow.
1446 if (vif
->type
== NL80211_IFTYPE_AP
||
1447 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1448 #ifdef CONFIG_NL80211_TESTMODE
1449 if (vif
== mvm
->noa_vif
) {
1450 mvm
->noa_vif
= NULL
;
1451 mvm
->noa_duration
= 0;
1454 iwl_mvm_dealloc_bcast_sta(mvm
, vif
);
1458 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1459 mvm
->p2p_device_vif
= NULL
;
1460 iwl_mvm_rm_bcast_sta(mvm
, vif
);
1461 iwl_mvm_binding_remove_vif(mvm
, vif
);
1462 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1463 mvmvif
->phy_ctxt
= NULL
;
1466 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1469 iwl_mvm_power_update_mac(mvm
);
1470 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1473 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1474 mutex_unlock(&mvm
->mutex
);
1477 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
1482 struct iwl_mvm_mc_iter_data
{
1483 struct iwl_mvm
*mvm
;
1487 static void iwl_mvm_mc_iface_iterator(void *_data
, u8
*mac
,
1488 struct ieee80211_vif
*vif
)
1490 struct iwl_mvm_mc_iter_data
*data
= _data
;
1491 struct iwl_mvm
*mvm
= data
->mvm
;
1492 struct iwl_mcast_filter_cmd
*cmd
= mvm
->mcast_filter_cmd
;
1495 /* if we don't have free ports, mcast frames will be dropped */
1496 if (WARN_ON_ONCE(data
->port_id
>= MAX_PORT_ID_NUM
))
1499 if (vif
->type
!= NL80211_IFTYPE_STATION
||
1500 !vif
->bss_conf
.assoc
)
1503 cmd
->port_id
= data
->port_id
++;
1504 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
1505 len
= roundup(sizeof(*cmd
) + cmd
->count
* ETH_ALEN
, 4);
1507 ret
= iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_ASYNC
, len
, cmd
);
1509 IWL_ERR(mvm
, "mcast filter cmd error. ret=%d\n", ret
);
1512 static void iwl_mvm_recalc_multicast(struct iwl_mvm
*mvm
)
1514 struct iwl_mvm_mc_iter_data iter_data
= {
1518 lockdep_assert_held(&mvm
->mutex
);
1520 if (WARN_ON_ONCE(!mvm
->mcast_filter_cmd
))
1523 ieee80211_iterate_active_interfaces_atomic(
1524 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1525 iwl_mvm_mc_iface_iterator
, &iter_data
);
1528 static u64
iwl_mvm_prepare_multicast(struct ieee80211_hw
*hw
,
1529 struct netdev_hw_addr_list
*mc_list
)
1531 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1532 struct iwl_mcast_filter_cmd
*cmd
;
1533 struct netdev_hw_addr
*addr
;
1538 addr_count
= netdev_hw_addr_list_count(mc_list
);
1539 pass_all
= addr_count
> MAX_MCAST_FILTERING_ADDRESSES
||
1540 IWL_MVM_FW_MCAST_FILTER_PASS_ALL
;
1544 len
= roundup(sizeof(*cmd
) + addr_count
* ETH_ALEN
, 4);
1545 cmd
= kzalloc(len
, GFP_ATOMIC
);
1551 return (u64
)(unsigned long)cmd
;
1554 netdev_hw_addr_list_for_each(addr
, mc_list
) {
1555 IWL_DEBUG_MAC80211(mvm
, "mcast addr (%d): %pM\n",
1556 cmd
->count
, addr
->addr
);
1557 memcpy(&cmd
->addr_list
[cmd
->count
* ETH_ALEN
],
1558 addr
->addr
, ETH_ALEN
);
1562 return (u64
)(unsigned long)cmd
;
1565 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
1566 unsigned int changed_flags
,
1567 unsigned int *total_flags
,
1570 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1571 struct iwl_mcast_filter_cmd
*cmd
= (void *)(unsigned long)multicast
;
1573 mutex_lock(&mvm
->mutex
);
1575 /* replace previous configuration */
1576 kfree(mvm
->mcast_filter_cmd
);
1577 mvm
->mcast_filter_cmd
= cmd
;
1582 iwl_mvm_recalc_multicast(mvm
);
1584 mutex_unlock(&mvm
->mutex
);
1588 static void iwl_mvm_config_iface_filter(struct ieee80211_hw
*hw
,
1589 struct ieee80211_vif
*vif
,
1590 unsigned int filter_flags
,
1591 unsigned int changed_flags
)
1593 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1595 /* We support only filter for probe requests */
1596 if (!(changed_flags
& FIF_PROBE_REQ
))
1599 /* Supported only for p2p client interfaces */
1600 if (vif
->type
!= NL80211_IFTYPE_STATION
|| !vif
->bss_conf
.assoc
||
1604 mutex_lock(&mvm
->mutex
);
1605 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
1606 mutex_unlock(&mvm
->mutex
);
1609 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1610 struct iwl_bcast_iter_data
{
1611 struct iwl_mvm
*mvm
;
1612 struct iwl_bcast_filter_cmd
*cmd
;
1617 iwl_mvm_set_bcast_filter(struct ieee80211_vif
*vif
,
1618 const struct iwl_fw_bcast_filter
*in_filter
,
1619 struct iwl_fw_bcast_filter
*out_filter
)
1621 struct iwl_fw_bcast_filter_attr
*attr
;
1624 memcpy(out_filter
, in_filter
, sizeof(*out_filter
));
1626 for (i
= 0; i
< ARRAY_SIZE(out_filter
->attrs
); i
++) {
1627 attr
= &out_filter
->attrs
[i
];
1632 switch (attr
->reserved1
) {
1633 case cpu_to_le16(BC_FILTER_MAGIC_IP
):
1634 if (vif
->bss_conf
.arp_addr_cnt
!= 1) {
1639 attr
->val
= vif
->bss_conf
.arp_addr_list
[0];
1641 case cpu_to_le16(BC_FILTER_MAGIC_MAC
):
1642 attr
->val
= *(__be32
*)&vif
->addr
[2];
1647 attr
->reserved1
= 0;
1648 out_filter
->num_attrs
++;
1652 static void iwl_mvm_bcast_filter_iterator(void *_data
, u8
*mac
,
1653 struct ieee80211_vif
*vif
)
1655 struct iwl_bcast_iter_data
*data
= _data
;
1656 struct iwl_mvm
*mvm
= data
->mvm
;
1657 struct iwl_bcast_filter_cmd
*cmd
= data
->cmd
;
1658 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1659 struct iwl_fw_bcast_mac
*bcast_mac
;
1662 if (WARN_ON(mvmvif
->id
>= ARRAY_SIZE(cmd
->macs
)))
1665 bcast_mac
= &cmd
->macs
[mvmvif
->id
];
1668 * enable filtering only for associated stations, but not for P2P
1671 if (vif
->type
!= NL80211_IFTYPE_STATION
|| vif
->p2p
||
1672 !vif
->bss_conf
.assoc
)
1675 bcast_mac
->default_discard
= 1;
1677 /* copy all configured filters */
1678 for (i
= 0; mvm
->bcast_filters
[i
].attrs
[0].mask
; i
++) {
1680 * Make sure we don't exceed our filters limit.
1681 * if there is still a valid filter to be configured,
1682 * be on the safe side and just allow bcast for this mac.
1684 if (WARN_ON_ONCE(data
->current_filter
>=
1685 ARRAY_SIZE(cmd
->filters
))) {
1686 bcast_mac
->default_discard
= 0;
1687 bcast_mac
->attached_filters
= 0;
1691 iwl_mvm_set_bcast_filter(vif
,
1692 &mvm
->bcast_filters
[i
],
1693 &cmd
->filters
[data
->current_filter
]);
1695 /* skip current filter if it contains no attributes */
1696 if (!cmd
->filters
[data
->current_filter
].num_attrs
)
1699 /* attach the filter to current mac */
1700 bcast_mac
->attached_filters
|=
1701 cpu_to_le16(BIT(data
->current_filter
));
1703 data
->current_filter
++;
1707 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm
*mvm
,
1708 struct iwl_bcast_filter_cmd
*cmd
)
1710 struct iwl_bcast_iter_data iter_data
= {
1715 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL
)
1718 memset(cmd
, 0, sizeof(*cmd
));
1719 cmd
->max_bcast_filters
= ARRAY_SIZE(cmd
->filters
);
1720 cmd
->max_macs
= ARRAY_SIZE(cmd
->macs
);
1722 #ifdef CONFIG_IWLWIFI_DEBUGFS
1723 /* use debugfs filters/macs if override is configured */
1724 if (mvm
->dbgfs_bcast_filtering
.override
) {
1725 memcpy(cmd
->filters
, &mvm
->dbgfs_bcast_filtering
.cmd
.filters
,
1726 sizeof(cmd
->filters
));
1727 memcpy(cmd
->macs
, &mvm
->dbgfs_bcast_filtering
.cmd
.macs
,
1733 /* if no filters are configured, do nothing */
1734 if (!mvm
->bcast_filters
)
1737 /* configure and attach these filters for each associated sta vif */
1738 ieee80211_iterate_active_interfaces(
1739 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1740 iwl_mvm_bcast_filter_iterator
, &iter_data
);
1745 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
)
1747 struct iwl_bcast_filter_cmd cmd
;
1749 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BCAST_FILTERING
))
1752 if (!iwl_mvm_bcast_filter_build_cmd(mvm
, &cmd
))
1755 return iwl_mvm_send_cmd_pdu(mvm
, BCAST_FILTER_CMD
, 0,
1759 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
)
1765 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
1766 struct ieee80211_vif
*vif
,
1767 struct ieee80211_bss_conf
*bss_conf
,
1770 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1774 * Re-calculate the tsf id, as the master-slave relations depend on the
1775 * beacon interval, which was not known when the station interface was
1778 if (changes
& BSS_CHANGED_ASSOC
&& bss_conf
->assoc
)
1779 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1782 * If we're not associated yet, take the (new) BSSID before associating
1783 * so the firmware knows. If we're already associated, then use the old
1784 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1785 * branch for disassociation below.
1787 if (changes
& BSS_CHANGED_BSSID
&& !mvmvif
->associated
)
1788 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1790 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, mvmvif
->bssid
);
1792 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1794 /* after sending it once, adopt mac80211 data */
1795 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1796 mvmvif
->associated
= bss_conf
->assoc
;
1798 if (changes
& BSS_CHANGED_ASSOC
) {
1799 if (bss_conf
->assoc
) {
1800 /* clear statistics to get clean beacon counter */
1801 iwl_mvm_request_statistics(mvm
, true);
1802 memset(&mvmvif
->beacon_stats
, 0,
1803 sizeof(mvmvif
->beacon_stats
));
1805 /* add quota for this interface */
1806 ret
= iwl_mvm_update_quotas(mvm
, true, NULL
);
1808 IWL_ERR(mvm
, "failed to update quotas\n");
1812 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
1815 * If we're restarting then the firmware will
1816 * obviously have lost synchronisation with
1817 * the AP. It will attempt to synchronise by
1818 * itself, but we can make it more reliable by
1819 * scheduling a session protection time event.
1821 * The firmware needs to receive a beacon to
1822 * catch up with synchronisation, use 110% of
1823 * the beacon interval.
1825 * Set a large maximum delay to allow for more
1826 * than a single interface.
1828 u32 dur
= (11 * vif
->bss_conf
.beacon_int
) / 10;
1829 iwl_mvm_protect_session(mvm
, vif
, dur
, dur
,
1833 iwl_mvm_sf_update(mvm
, vif
, false);
1834 iwl_mvm_power_vif_assoc(mvm
, vif
);
1836 iwl_mvm_ref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1837 iwl_mvm_update_smps(mvm
, vif
,
1838 IWL_MVM_SMPS_REQ_PROT
,
1839 IEEE80211_SMPS_DYNAMIC
);
1841 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_STATION_COUNT
) {
1843 * If update fails - SF might be running in associated
1844 * mode while disassociated - which is forbidden.
1846 WARN_ONCE(iwl_mvm_sf_update(mvm
, vif
, false),
1847 "Failed to update SF upon disassociation\n");
1849 /* remove AP station now that the MAC is unassoc */
1850 ret
= iwl_mvm_rm_sta_id(mvm
, vif
, mvmvif
->ap_sta_id
);
1852 IWL_ERR(mvm
, "failed to remove AP station\n");
1854 if (mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
1855 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1856 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
1857 /* remove quota for this interface */
1858 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
1860 IWL_ERR(mvm
, "failed to update quotas\n");
1863 iwl_mvm_unref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1865 /* this will take the cleared BSSID from bss_conf */
1866 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
1869 "failed to update MAC %pM (clear after unassoc)\n",
1873 iwl_mvm_recalc_multicast(mvm
);
1874 iwl_mvm_configure_bcast_filter(mvm
);
1876 /* reset rssi values */
1877 mvmvif
->bf_data
.ave_beacon_signal
= 0;
1879 iwl_mvm_bt_coex_vif_change(mvm
);
1880 iwl_mvm_update_smps(mvm
, vif
, IWL_MVM_SMPS_REQ_TT
,
1881 IEEE80211_SMPS_AUTOMATIC
);
1882 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
1883 IWL_UCODE_TLV_CAPA_UMAC_SCAN
))
1884 iwl_mvm_config_scan(mvm
);
1885 } else if (changes
& BSS_CHANGED_BEACON_INFO
) {
1887 * We received a beacon _after_ association so
1888 * remove the session protection.
1890 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1891 &mvmvif
->time_event_data
);
1894 if (changes
& BSS_CHANGED_BEACON_INFO
) {
1895 iwl_mvm_sf_update(mvm
, vif
, false);
1896 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
1899 if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_P2P_PS
| BSS_CHANGED_QOS
)) {
1900 ret
= iwl_mvm_power_update_mac(mvm
);
1902 IWL_ERR(mvm
, "failed to update power mode\n");
1905 if (changes
& BSS_CHANGED_TXPOWER
) {
1906 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
1908 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
1911 if (changes
& BSS_CHANGED_CQM
) {
1912 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed\n");
1913 /* reset cqm events tracking */
1914 mvmvif
->bf_data
.last_cqm_event
= 0;
1915 if (mvmvif
->bf_data
.bf_enabled
) {
1916 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
1919 "failed to update CQM thresholds\n");
1923 if (changes
& BSS_CHANGED_ARP_FILTER
) {
1924 IWL_DEBUG_MAC80211(mvm
, "arp filter changed\n");
1925 iwl_mvm_configure_bcast_filter(mvm
);
1929 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw
*hw
,
1930 struct ieee80211_vif
*vif
)
1932 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1933 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1937 * iwl_mvm_mac_ctxt_add() might read directly from the device
1938 * (the system time), so make sure it is available.
1940 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_START_AP
);
1944 mutex_lock(&mvm
->mutex
);
1946 /* Send the beacon template */
1947 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
1952 * Re-calculate the tsf id, as the master-slave relations depend on the
1953 * beacon interval, which was not known when the AP interface was added.
1955 if (vif
->type
== NL80211_IFTYPE_AP
)
1956 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1958 mvmvif
->ap_assoc_sta_count
= 0;
1960 /* Add the mac context */
1961 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1965 /* Perform the binding */
1966 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1970 /* Send the bcast station. At this stage the TBTT and DTIM time events
1971 * are added and applied to the scheduler */
1972 ret
= iwl_mvm_send_add_bcast_sta(mvm
, vif
);
1976 /* must be set before quota calculations */
1977 mvmvif
->ap_ibss_active
= true;
1979 /* power updated needs to be done before quotas */
1980 iwl_mvm_power_update_mac(mvm
);
1982 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
1984 goto out_quota_failed
;
1986 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1987 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1988 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
1990 iwl_mvm_ref(mvm
, IWL_MVM_REF_AP_IBSS
);
1992 iwl_mvm_bt_coex_vif_change(mvm
);
1994 /* we don't support TDLS during DCM */
1995 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
1996 iwl_mvm_teardown_tdls_peers(mvm
);
2001 iwl_mvm_power_update_mac(mvm
);
2002 mvmvif
->ap_ibss_active
= false;
2003 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
2005 iwl_mvm_binding_remove_vif(mvm
, vif
);
2007 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
2009 mutex_unlock(&mvm
->mutex
);
2010 iwl_mvm_unref(mvm
, IWL_MVM_REF_START_AP
);
2014 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw
*hw
,
2015 struct ieee80211_vif
*vif
)
2017 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2018 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2020 iwl_mvm_prepare_mac_removal(mvm
, vif
);
2022 mutex_lock(&mvm
->mutex
);
2024 /* Handle AP stop while in CSA */
2025 if (rcu_access_pointer(mvm
->csa_vif
) == vif
) {
2026 iwl_mvm_remove_time_event(mvm
, mvmvif
,
2027 &mvmvif
->time_event_data
);
2028 RCU_INIT_POINTER(mvm
->csa_vif
, NULL
);
2029 mvmvif
->csa_countdown
= false;
2032 if (rcu_access_pointer(mvm
->csa_tx_blocked_vif
) == vif
) {
2033 RCU_INIT_POINTER(mvm
->csa_tx_blocked_vif
, NULL
);
2034 mvm
->csa_tx_block_bcn_timeout
= 0;
2037 mvmvif
->ap_ibss_active
= false;
2038 mvm
->ap_last_beacon_gp2
= 0;
2040 iwl_mvm_bt_coex_vif_change(mvm
);
2042 iwl_mvm_unref(mvm
, IWL_MVM_REF_AP_IBSS
);
2044 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2045 if (vif
->p2p
&& mvm
->p2p_device_vif
)
2046 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
2048 iwl_mvm_update_quotas(mvm
, false, NULL
);
2049 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
2050 iwl_mvm_binding_remove_vif(mvm
, vif
);
2052 iwl_mvm_power_update_mac(mvm
);
2054 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
2056 mutex_unlock(&mvm
->mutex
);
2060 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm
*mvm
,
2061 struct ieee80211_vif
*vif
,
2062 struct ieee80211_bss_conf
*bss_conf
,
2065 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2067 /* Changes will be applied when the AP/IBSS is started */
2068 if (!mvmvif
->ap_ibss_active
)
2071 if (changes
& (BSS_CHANGED_ERP_CTS_PROT
| BSS_CHANGED_HT
|
2072 BSS_CHANGED_BANDWIDTH
| BSS_CHANGED_QOS
) &&
2073 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
))
2074 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
2076 /* Need to send a new beacon template to the FW */
2077 if (changes
& BSS_CHANGED_BEACON
&&
2078 iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
2079 IWL_WARN(mvm
, "Failed updating beacon data\n");
2081 if (changes
& BSS_CHANGED_TXPOWER
) {
2082 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
2084 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
2089 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
2090 struct ieee80211_vif
*vif
,
2091 struct ieee80211_bss_conf
*bss_conf
,
2094 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2097 * iwl_mvm_bss_info_changed_station() might call
2098 * iwl_mvm_protect_session(), which reads directly from
2099 * the device (the system time), so make sure it is available.
2101 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_BSS_CHANGED
))
2104 mutex_lock(&mvm
->mutex
);
2106 if (changes
& BSS_CHANGED_IDLE
&& !bss_conf
->idle
)
2107 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_SCHED
, true);
2109 switch (vif
->type
) {
2110 case NL80211_IFTYPE_STATION
:
2111 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
2113 case NL80211_IFTYPE_AP
:
2114 case NL80211_IFTYPE_ADHOC
:
2115 iwl_mvm_bss_info_changed_ap_ibss(mvm
, vif
, bss_conf
, changes
);
2118 /* shouldn't happen */
2122 mutex_unlock(&mvm
->mutex
);
2123 iwl_mvm_unref(mvm
, IWL_MVM_REF_BSS_CHANGED
);
2126 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
2127 struct ieee80211_vif
*vif
,
2128 struct ieee80211_scan_request
*hw_req
)
2130 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2133 if (hw_req
->req
.n_channels
== 0 ||
2134 hw_req
->req
.n_channels
> mvm
->fw
->ucode_capa
.n_scan_channels
)
2137 mutex_lock(&mvm
->mutex
);
2138 ret
= iwl_mvm_reg_scan_start(mvm
, vif
, &hw_req
->req
, &hw_req
->ies
);
2139 mutex_unlock(&mvm
->mutex
);
2144 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
2145 struct ieee80211_vif
*vif
)
2147 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2149 mutex_lock(&mvm
->mutex
);
2151 /* Due to a race condition, it's possible that mac80211 asks
2152 * us to stop a hw_scan when it's already stopped. This can
2153 * happen, for instance, if we stopped the scan ourselves,
2154 * called ieee80211_scan_completed() and the userspace called
2155 * cancel scan scan before ieee80211_scan_work() could run.
2156 * To handle that, simply return if the scan is not running.
2158 if (mvm
->scan_status
& IWL_MVM_SCAN_REGULAR
)
2159 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_REGULAR
, true);
2161 mutex_unlock(&mvm
->mutex
);
2165 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
2166 struct ieee80211_sta
*sta
, u16 tids
,
2168 enum ieee80211_frame_release_type reason
,
2171 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2173 /* Called when we need to transmit (a) frame(s) from mac80211 */
2175 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2176 tids
, more_data
, false);
2180 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw
*hw
,
2181 struct ieee80211_sta
*sta
, u16 tids
,
2183 enum ieee80211_frame_release_type reason
,
2186 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2188 /* Called when we need to transmit (a) frame(s) from agg queue */
2190 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2191 tids
, more_data
, true);
2194 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
2195 struct ieee80211_vif
*vif
,
2196 enum sta_notify_cmd cmd
,
2197 struct ieee80211_sta
*sta
)
2199 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2200 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2201 unsigned long txqs
= 0, tids
= 0;
2204 spin_lock_bh(&mvmsta
->lock
);
2205 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
2206 struct iwl_mvm_tid_data
*tid_data
= &mvmsta
->tid_data
[tid
];
2208 if (tid_data
->state
!= IWL_AGG_ON
&&
2209 tid_data
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
2212 __set_bit(tid_data
->txq_id
, &txqs
);
2214 if (iwl_mvm_tid_queued(tid_data
) == 0)
2217 __set_bit(tid
, &tids
);
2221 case STA_NOTIFY_SLEEP
:
2222 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
2223 ieee80211_sta_block_awake(hw
, sta
, true);
2225 for_each_set_bit(tid
, &tids
, IWL_MAX_TID_COUNT
)
2226 ieee80211_sta_set_buffered(sta
, tid
, true);
2229 iwl_trans_freeze_txq_timer(mvm
->trans
, txqs
, true);
2231 * The fw updates the STA to be asleep. Tx packets on the Tx
2232 * queues to this station will not be transmitted. The fw will
2233 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2236 case STA_NOTIFY_AWAKE
:
2237 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
))
2241 iwl_trans_freeze_txq_timer(mvm
->trans
, txqs
, false);
2242 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
2247 spin_unlock_bh(&mvmsta
->lock
);
2250 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw
*hw
,
2251 struct ieee80211_vif
*vif
,
2252 struct ieee80211_sta
*sta
)
2254 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2255 struct iwl_mvm_sta
*mvm_sta
= iwl_mvm_sta_from_mac80211(sta
);
2258 * This is called before mac80211 does RCU synchronisation,
2259 * so here we already invalidate our internal RCU-protected
2260 * station pointer. The rest of the code will thus no longer
2261 * be able to find the station this way, and we don't rely
2262 * on further RCU synchronisation after the sta_state()
2263 * callback deleted the station.
2265 mutex_lock(&mvm
->mutex
);
2266 if (sta
== rcu_access_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
]))
2267 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
],
2270 mutex_unlock(&mvm
->mutex
);
2273 static void iwl_mvm_check_uapsd(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
2276 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT
))
2279 if (iwlwifi_mod_params
.uapsd_disable
) {
2280 vif
->driver_flags
&= ~IEEE80211_VIF_SUPPORTS_UAPSD
;
2284 vif
->driver_flags
|= IEEE80211_VIF_SUPPORTS_UAPSD
;
2288 iwl_mvm_tdls_check_trigger(struct iwl_mvm
*mvm
,
2289 struct ieee80211_vif
*vif
, u8
*peer_addr
,
2290 enum nl80211_tdls_operation action
)
2292 struct iwl_fw_dbg_trigger_tlv
*trig
;
2293 struct iwl_fw_dbg_trigger_tdls
*tdls_trig
;
2295 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_TDLS
))
2298 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_TDLS
);
2299 tdls_trig
= (void *)trig
->data
;
2300 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
2303 if (!(tdls_trig
->action_bitmap
& BIT(action
)))
2306 if (tdls_trig
->peer_mode
&&
2307 memcmp(tdls_trig
->peer
, peer_addr
, ETH_ALEN
) != 0)
2310 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
2311 "TDLS event occurred, peer %pM, action %d",
2315 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
2316 struct ieee80211_vif
*vif
,
2317 struct ieee80211_sta
*sta
,
2318 enum ieee80211_sta_state old_state
,
2319 enum ieee80211_sta_state new_state
)
2321 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2322 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2325 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
2326 sta
->addr
, old_state
, new_state
);
2328 /* this would be a mac80211 bug ... but don't crash */
2329 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
2332 /* if a STA is being removed, reuse its ID */
2333 flush_work(&mvm
->sta_drained_wk
);
2335 mutex_lock(&mvm
->mutex
);
2336 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2337 new_state
== IEEE80211_STA_NONE
) {
2339 * Firmware bug - it'll crash if the beacon interval is less
2340 * than 16. We can't avoid connecting at all, so refuse the
2341 * station state change, this will cause mac80211 to abandon
2342 * attempts to connect to this AP, and eventually wpa_s will
2343 * blacklist the AP...
2345 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2346 vif
->bss_conf
.beacon_int
< 16) {
2348 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2349 sta
->addr
, vif
->bss_conf
.beacon_int
);
2356 iwl_mvm_tdls_sta_count(mvm
, NULL
) ==
2357 IWL_MVM_TDLS_STA_COUNT
||
2358 iwl_mvm_phy_ctx_count(mvm
) > 1)) {
2359 IWL_DEBUG_MAC80211(mvm
, "refusing TDLS sta\n");
2364 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
2365 if (sta
->tdls
&& ret
== 0) {
2366 iwl_mvm_recalc_tdls_state(mvm
, vif
, true);
2367 iwl_mvm_tdls_check_trigger(mvm
, vif
, sta
->addr
,
2368 NL80211_TDLS_SETUP
);
2370 } else if (old_state
== IEEE80211_STA_NONE
&&
2371 new_state
== IEEE80211_STA_AUTH
) {
2373 * EBS may be disabled due to previous failures reported by FW.
2374 * Reset EBS status here assuming environment has been changed.
2376 mvm
->last_ebs_successful
= true;
2377 iwl_mvm_check_uapsd(mvm
, vif
, sta
->addr
);
2379 } else if (old_state
== IEEE80211_STA_AUTH
&&
2380 new_state
== IEEE80211_STA_ASSOC
) {
2381 if (vif
->type
== NL80211_IFTYPE_AP
) {
2382 mvmvif
->ap_assoc_sta_count
++;
2383 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2385 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
2387 iwl_mvm_rs_rate_init(mvm
, sta
,
2388 mvmvif
->phy_ctxt
->channel
->band
,
2390 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2391 new_state
== IEEE80211_STA_AUTHORIZED
) {
2393 /* we don't support TDLS during DCM */
2394 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2395 iwl_mvm_teardown_tdls_peers(mvm
);
2398 iwl_mvm_tdls_check_trigger(mvm
, vif
, sta
->addr
,
2399 NL80211_TDLS_ENABLE_LINK
);
2401 /* enable beacon filtering */
2402 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
2404 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
2405 new_state
== IEEE80211_STA_ASSOC
) {
2406 /* disable beacon filtering */
2407 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
, 0));
2409 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2410 new_state
== IEEE80211_STA_AUTH
) {
2411 if (vif
->type
== NL80211_IFTYPE_AP
) {
2412 mvmvif
->ap_assoc_sta_count
--;
2413 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2416 } else if (old_state
== IEEE80211_STA_AUTH
&&
2417 new_state
== IEEE80211_STA_NONE
) {
2419 } else if (old_state
== IEEE80211_STA_NONE
&&
2420 new_state
== IEEE80211_STA_NOTEXIST
) {
2421 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
2423 iwl_mvm_recalc_tdls_state(mvm
, vif
, false);
2424 iwl_mvm_tdls_check_trigger(mvm
, vif
, sta
->addr
,
2425 NL80211_TDLS_DISABLE_LINK
);
2431 mutex_unlock(&mvm
->mutex
);
2433 if (sta
->tdls
&& ret
== 0) {
2434 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2435 new_state
== IEEE80211_STA_NONE
)
2436 ieee80211_reserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2437 else if (old_state
== IEEE80211_STA_NONE
&&
2438 new_state
== IEEE80211_STA_NOTEXIST
)
2439 ieee80211_unreserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2445 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
2447 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2449 mvm
->rts_threshold
= value
;
2454 static void iwl_mvm_sta_rc_update(struct ieee80211_hw
*hw
,
2455 struct ieee80211_vif
*vif
,
2456 struct ieee80211_sta
*sta
, u32 changed
)
2458 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2460 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2461 changed
& IEEE80211_RC_NSS_CHANGED
)
2462 iwl_mvm_sf_update(mvm
, vif
, false);
2465 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
2466 struct ieee80211_vif
*vif
, u16 ac
,
2467 const struct ieee80211_tx_queue_params
*params
)
2469 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2470 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2472 mvmvif
->queue_params
[ac
] = *params
;
2475 * No need to update right away, we'll get BSS_CHANGED_QOS
2476 * The exception is P2P_DEVICE interface which needs immediate update.
2478 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
2481 mutex_lock(&mvm
->mutex
);
2482 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2483 mutex_unlock(&mvm
->mutex
);
2489 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
2490 struct ieee80211_vif
*vif
)
2492 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2493 u32 duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
,
2494 200 + vif
->bss_conf
.beacon_int
);
2495 u32 min_duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
,
2496 100 + vif
->bss_conf
.beacon_int
);
2498 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
2502 * iwl_mvm_protect_session() reads directly from the device
2503 * (the system time), so make sure it is available.
2505 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PREPARE_TX
))
2508 mutex_lock(&mvm
->mutex
);
2509 /* Try really hard to protect the session and hear a beacon */
2510 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
, 500, false);
2511 mutex_unlock(&mvm
->mutex
);
2513 iwl_mvm_unref(mvm
, IWL_MVM_REF_PREPARE_TX
);
2516 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw
*hw
,
2517 struct ieee80211_vif
*vif
,
2518 struct cfg80211_sched_scan_request
*req
,
2519 struct ieee80211_scan_ies
*ies
)
2521 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2525 mutex_lock(&mvm
->mutex
);
2527 if (!vif
->bss_conf
.idle
) {
2532 ret
= iwl_mvm_sched_scan_start(mvm
, vif
, req
, ies
, IWL_MVM_SCAN_SCHED
);
2535 mutex_unlock(&mvm
->mutex
);
2539 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw
*hw
,
2540 struct ieee80211_vif
*vif
)
2542 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2545 mutex_lock(&mvm
->mutex
);
2547 /* Due to a race condition, it's possible that mac80211 asks
2548 * us to stop a sched_scan when it's already stopped. This
2549 * can happen, for instance, if we stopped the scan ourselves,
2550 * called ieee80211_sched_scan_stopped() and the userspace called
2551 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2552 * could run. To handle this, simply return if the scan is
2555 if (!(mvm
->scan_status
& IWL_MVM_SCAN_SCHED
)) {
2556 mutex_unlock(&mvm
->mutex
);
2560 ret
= iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_SCHED
, false);
2561 mutex_unlock(&mvm
->mutex
);
2562 iwl_mvm_wait_for_async_handlers(mvm
);
2567 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
2568 enum set_key_cmd cmd
,
2569 struct ieee80211_vif
*vif
,
2570 struct ieee80211_sta
*sta
,
2571 struct ieee80211_key_conf
*key
)
2573 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2574 struct iwl_mvm_sta
*mvmsta
;
2575 struct iwl_mvm_key_pn
*ptk_pn
;
2576 int keyidx
= key
->keyidx
;
2580 if (iwlwifi_mod_params
.sw_crypto
) {
2581 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
2585 switch (key
->cipher
) {
2586 case WLAN_CIPHER_SUITE_TKIP
:
2587 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
2588 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2590 case WLAN_CIPHER_SUITE_CCMP
:
2591 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2593 case WLAN_CIPHER_SUITE_AES_CMAC
:
2594 WARN_ON_ONCE(!ieee80211_hw_check(hw
, MFP_CAPABLE
));
2596 case WLAN_CIPHER_SUITE_WEP40
:
2597 case WLAN_CIPHER_SUITE_WEP104
:
2598 /* For non-client mode, only use WEP keys for TX as we probably
2599 * don't have a station yet anyway and would then have to keep
2600 * track of the keys, linking them to each of the clients/peers
2601 * as they appear. For now, don't do that, for performance WEP
2602 * offload doesn't really matter much, but we need it for some
2603 * other offload features in client mode.
2605 if (vif
->type
!= NL80211_IFTYPE_STATION
)
2609 /* currently FW supports only one optional cipher scheme */
2610 if (hw
->n_cipher_schemes
&&
2611 hw
->cipher_schemes
->cipher
== key
->cipher
)
2612 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2617 mutex_lock(&mvm
->mutex
);
2621 if ((vif
->type
== NL80211_IFTYPE_ADHOC
||
2622 vif
->type
== NL80211_IFTYPE_AP
) && !sta
) {
2624 * GTK on AP interface is a TX-only key, return 0;
2625 * on IBSS they're per-station and because we're lazy
2626 * we don't support them for RX, so do the same.
2629 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2633 /* During FW restart, in order to restore the state as it was,
2634 * don't try to reprogram keys we previously failed for.
2636 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2637 key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2638 IWL_DEBUG_MAC80211(mvm
,
2639 "skip invalid idx key programming during restart\n");
2644 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2645 sta
&& iwl_mvm_has_new_rx_api(mvm
) &&
2646 key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
&&
2647 (key
->cipher
== WLAN_CIPHER_SUITE_CCMP
||
2648 key
->cipher
== WLAN_CIPHER_SUITE_GCMP
)) {
2649 struct ieee80211_key_seq seq
;
2652 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2653 WARN_ON(rcu_access_pointer(mvmsta
->ptk_pn
[keyidx
]));
2654 ptk_pn
= kzalloc(sizeof(*ptk_pn
) +
2655 mvm
->trans
->num_rx_queues
*
2656 sizeof(ptk_pn
->q
[0]),
2663 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
2664 ieee80211_get_key_rx_seq(key
, tid
, &seq
);
2665 for (q
= 0; q
< mvm
->trans
->num_rx_queues
; q
++)
2666 memcpy(ptk_pn
->q
[q
].pn
[tid
],
2668 IEEE80211_CCMP_PN_LEN
);
2671 rcu_assign_pointer(mvmsta
->ptk_pn
[keyidx
], ptk_pn
);
2674 /* in HW restart reuse the index, otherwise request a new one */
2675 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
2676 key_offset
= key
->hw_key_idx
;
2678 key_offset
= STA_KEY_IDX_INVALID
;
2680 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
2681 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, key_offset
);
2683 IWL_WARN(mvm
, "set key failed\n");
2685 * can't add key for RX, but we don't need it
2686 * in the device for TX so still return 0
2688 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2694 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2699 if (sta
&& iwl_mvm_has_new_rx_api(mvm
) &&
2700 key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
&&
2701 (key
->cipher
== WLAN_CIPHER_SUITE_CCMP
||
2702 key
->cipher
== WLAN_CIPHER_SUITE_GCMP
)) {
2703 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2704 ptk_pn
= rcu_dereference_protected(
2705 mvmsta
->ptk_pn
[keyidx
],
2706 lockdep_is_held(&mvm
->mutex
));
2707 RCU_INIT_POINTER(mvmsta
->ptk_pn
[keyidx
], NULL
);
2709 kfree_rcu(ptk_pn
, rcu_head
);
2712 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
2713 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
2719 mutex_unlock(&mvm
->mutex
);
2723 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2724 struct ieee80211_vif
*vif
,
2725 struct ieee80211_key_conf
*keyconf
,
2726 struct ieee80211_sta
*sta
,
2727 u32 iv32
, u16
*phase1key
)
2729 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2731 if (keyconf
->hw_key_idx
== STA_KEY_IDX_INVALID
)
2734 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
2738 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data
*notif_wait
,
2739 struct iwl_rx_packet
*pkt
, void *data
)
2741 struct iwl_mvm
*mvm
=
2742 container_of(notif_wait
, struct iwl_mvm
, notif_wait
);
2743 struct iwl_hs20_roc_res
*resp
;
2744 int resp_len
= iwl_rx_packet_payload_len(pkt
);
2745 struct iwl_mvm_time_event_data
*te_data
= data
;
2747 if (WARN_ON(pkt
->hdr
.cmd
!= HOT_SPOT_CMD
))
2750 if (WARN_ON_ONCE(resp_len
!= sizeof(*resp
))) {
2751 IWL_ERR(mvm
, "Invalid HOT_SPOT_CMD response\n");
2755 resp
= (void *)pkt
->data
;
2758 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2759 resp
->status
, resp
->event_unique_id
);
2761 te_data
->uid
= le32_to_cpu(resp
->event_unique_id
);
2762 IWL_DEBUG_TE(mvm
, "TIME_EVENT_CMD response - UID = 0x%x\n",
2765 spin_lock_bh(&mvm
->time_event_lock
);
2766 list_add_tail(&te_data
->list
, &mvm
->aux_roc_te_list
);
2767 spin_unlock_bh(&mvm
->time_event_lock
);
2772 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
2773 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
2774 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
2775 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
2776 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
2777 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm
*mvm
,
2778 struct ieee80211_channel
*channel
,
2779 struct ieee80211_vif
*vif
,
2782 int res
, time_reg
= DEVICE_SYSTEM_TIME_REG
;
2783 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2784 struct iwl_mvm_time_event_data
*te_data
= &mvmvif
->hs_time_event_data
;
2785 static const u16 time_event_response
[] = { HOT_SPOT_CMD
};
2786 struct iwl_notification_wait wait_time_event
;
2787 u32 dtim_interval
= vif
->bss_conf
.dtim_period
*
2788 vif
->bss_conf
.beacon_int
;
2790 struct iwl_hs20_roc_req aux_roc_req
= {
2791 .action
= cpu_to_le32(FW_CTXT_ACTION_ADD
),
2793 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX
, 0)),
2794 .sta_id_and_color
= cpu_to_le32(mvm
->aux_sta
.sta_id
),
2795 /* Set the channel info data */
2796 .channel_info
.band
= (channel
->band
== IEEE80211_BAND_2GHZ
) ?
2797 PHY_BAND_24
: PHY_BAND_5
,
2798 .channel_info
.channel
= channel
->hw_value
,
2799 .channel_info
.width
= PHY_VHT_CHANNEL_MODE20
,
2800 /* Set the time and duration */
2801 .apply_time
= cpu_to_le32(iwl_read_prph(mvm
->trans
, time_reg
)),
2804 delay
= AUX_ROC_MIN_DELAY
;
2805 req_dur
= MSEC_TO_TU(duration
);
2808 * If we are associated we want the delay time to be at least one
2809 * dtim interval so that the FW can wait until after the DTIM and
2810 * then start the time event, this will potentially allow us to
2811 * remain off-channel for the max duration.
2812 * Since we want to use almost a whole dtim interval we would also
2813 * like the delay to be for 2-3 dtim intervals, in case there are
2814 * other time events with higher priority.
2816 if (vif
->bss_conf
.assoc
) {
2817 delay
= min_t(u32
, dtim_interval
* 3, AUX_ROC_MAX_DELAY
);
2818 /* We cannot remain off-channel longer than the DTIM interval */
2819 if (dtim_interval
<= req_dur
) {
2820 req_dur
= dtim_interval
- AUX_ROC_SAFETY_BUFFER
;
2821 if (req_dur
<= AUX_ROC_MIN_DURATION
)
2822 req_dur
= dtim_interval
-
2823 AUX_ROC_MIN_SAFETY_BUFFER
;
2827 aux_roc_req
.duration
= cpu_to_le32(req_dur
);
2828 aux_roc_req
.apply_time_max_delay
= cpu_to_le32(delay
);
2831 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
2832 channel
->hw_value
, req_dur
, duration
, delay
,
2834 /* Set the node address */
2835 memcpy(aux_roc_req
.node_addr
, vif
->addr
, ETH_ALEN
);
2837 lockdep_assert_held(&mvm
->mutex
);
2839 spin_lock_bh(&mvm
->time_event_lock
);
2841 if (WARN_ON(te_data
->id
== HOT_SPOT_CMD
)) {
2842 spin_unlock_bh(&mvm
->time_event_lock
);
2847 te_data
->duration
= duration
;
2848 te_data
->id
= HOT_SPOT_CMD
;
2850 spin_unlock_bh(&mvm
->time_event_lock
);
2853 * Use a notification wait, which really just processes the
2854 * command response and doesn't wait for anything, in order
2855 * to be able to process the response and get the UID inside
2856 * the RX path. Using CMD_WANT_SKB doesn't work because it
2857 * stores the buffer and then wakes up this thread, by which
2858 * time another notification (that the time event started)
2859 * might already be processed unsuccessfully.
2861 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_time_event
,
2862 time_event_response
,
2863 ARRAY_SIZE(time_event_response
),
2864 iwl_mvm_rx_aux_roc
, te_data
);
2866 res
= iwl_mvm_send_cmd_pdu(mvm
, HOT_SPOT_CMD
, 0, sizeof(aux_roc_req
),
2870 IWL_ERR(mvm
, "Couldn't send HOT_SPOT_CMD: %d\n", res
);
2871 iwl_remove_notification(&mvm
->notif_wait
, &wait_time_event
);
2875 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2876 res
= iwl_wait_notification(&mvm
->notif_wait
, &wait_time_event
, 1);
2877 /* should never fail */
2882 spin_lock_bh(&mvm
->time_event_lock
);
2883 iwl_mvm_te_clear_data(mvm
, te_data
);
2884 spin_unlock_bh(&mvm
->time_event_lock
);
2890 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
2891 struct ieee80211_vif
*vif
,
2892 struct ieee80211_channel
*channel
,
2894 enum ieee80211_roc_type type
)
2896 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2897 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2898 struct cfg80211_chan_def chandef
;
2899 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2902 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
2905 flush_work(&mvm
->roc_done_wk
);
2907 mutex_lock(&mvm
->mutex
);
2909 switch (vif
->type
) {
2910 case NL80211_IFTYPE_STATION
:
2911 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
2912 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT
)) {
2913 /* Use aux roc framework (HS20) */
2914 ret
= iwl_mvm_send_aux_roc_cmd(mvm
, channel
,
2918 IWL_ERR(mvm
, "hotspot not supported\n");
2921 case NL80211_IFTYPE_P2P_DEVICE
:
2925 IWL_ERR(mvm
, "vif isn't P2P_DEVICE: %d\n", vif
->type
);
2930 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
2931 phy_ctxt
= &mvm
->phy_ctxts
[i
];
2932 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
2935 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
2937 * Unbind the P2P_DEVICE from the current PHY context,
2938 * and if the PHY context is not used remove it.
2940 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2941 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2944 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2946 /* Bind the P2P_DEVICE to the current PHY Context */
2947 mvmvif
->phy_ctxt
= phy_ctxt
;
2949 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2950 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2953 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2954 goto schedule_time_event
;
2958 /* Need to update the PHY context only if the ROC channel changed */
2959 if (channel
== mvmvif
->phy_ctxt
->channel
)
2960 goto schedule_time_event
;
2962 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
2965 * Change the PHY context configuration as it is currently referenced
2966 * only by the P2P Device MAC
2968 if (mvmvif
->phy_ctxt
->ref
== 1) {
2969 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
2975 * The PHY context is shared with other MACs. Need to remove the
2976 * P2P Device from the binding, allocate an new PHY context and
2977 * create a new binding
2979 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2985 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
2988 IWL_ERR(mvm
, "Failed to change PHY context\n");
2992 /* Unbind the P2P_DEVICE from the current PHY context */
2993 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2994 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2997 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2999 /* Bind the P2P_DEVICE to the new allocated PHY context */
3000 mvmvif
->phy_ctxt
= phy_ctxt
;
3002 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3003 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
3006 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
3009 schedule_time_event
:
3010 /* Schedule the time events */
3011 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
3014 mutex_unlock(&mvm
->mutex
);
3015 IWL_DEBUG_MAC80211(mvm
, "leave\n");
3019 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
3021 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3023 IWL_DEBUG_MAC80211(mvm
, "enter\n");
3025 mutex_lock(&mvm
->mutex
);
3026 iwl_mvm_stop_roc(mvm
);
3027 mutex_unlock(&mvm
->mutex
);
3029 IWL_DEBUG_MAC80211(mvm
, "leave\n");
3033 static int __iwl_mvm_add_chanctx(struct iwl_mvm
*mvm
,
3034 struct ieee80211_chanctx_conf
*ctx
)
3036 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3037 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
3040 lockdep_assert_held(&mvm
->mutex
);
3042 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
3044 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
3050 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
3051 ctx
->rx_chains_static
,
3052 ctx
->rx_chains_dynamic
);
3054 IWL_ERR(mvm
, "Failed to add PHY context\n");
3058 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
3059 *phy_ctxt_id
= phy_ctxt
->id
;
3064 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
3065 struct ieee80211_chanctx_conf
*ctx
)
3067 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3070 mutex_lock(&mvm
->mutex
);
3071 ret
= __iwl_mvm_add_chanctx(mvm
, ctx
);
3072 mutex_unlock(&mvm
->mutex
);
3077 static void __iwl_mvm_remove_chanctx(struct iwl_mvm
*mvm
,
3078 struct ieee80211_chanctx_conf
*ctx
)
3080 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3081 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3083 lockdep_assert_held(&mvm
->mutex
);
3085 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
3088 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
3089 struct ieee80211_chanctx_conf
*ctx
)
3091 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3093 mutex_lock(&mvm
->mutex
);
3094 __iwl_mvm_remove_chanctx(mvm
, ctx
);
3095 mutex_unlock(&mvm
->mutex
);
3098 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
3099 struct ieee80211_chanctx_conf
*ctx
,
3102 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3103 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3104 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3106 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
3107 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
3108 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
3109 IEEE80211_CHANCTX_CHANGE_RADAR
|
3110 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH
)),
3111 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3112 phy_ctxt
->ref
, changed
))
3115 mutex_lock(&mvm
->mutex
);
3116 iwl_mvm_bt_coex_vif_change(mvm
);
3117 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
3118 ctx
->rx_chains_static
,
3119 ctx
->rx_chains_dynamic
);
3120 mutex_unlock(&mvm
->mutex
);
3123 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm
*mvm
,
3124 struct ieee80211_vif
*vif
,
3125 struct ieee80211_chanctx_conf
*ctx
,
3126 bool switching_chanctx
)
3128 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3129 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3130 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3133 lockdep_assert_held(&mvm
->mutex
);
3135 mvmvif
->phy_ctxt
= phy_ctxt
;
3137 switch (vif
->type
) {
3138 case NL80211_IFTYPE_AP
:
3139 /* only needed if we're switching chanctx (i.e. during CSA) */
3140 if (switching_chanctx
) {
3141 mvmvif
->ap_ibss_active
= true;
3144 case NL80211_IFTYPE_ADHOC
:
3146 * The AP binding flow is handled as part of the start_ap flow
3147 * (in bss_info_changed), similarly for IBSS.
3151 case NL80211_IFTYPE_STATION
:
3153 case NL80211_IFTYPE_MONITOR
:
3154 /* always disable PS when a monitor interface is active */
3155 mvmvif
->ps_disabled
= true;
3162 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3167 * Power state must be updated before quotas,
3168 * otherwise fw will complain.
3170 iwl_mvm_power_update_mac(mvm
);
3172 /* Setting the quota at this stage is only required for monitor
3173 * interfaces. For the other types, the bss_info changed flow
3174 * will handle quota settings.
3176 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
3177 mvmvif
->monitor_active
= true;
3178 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
3180 goto out_remove_binding
;
3182 ret
= iwl_mvm_add_snif_sta(mvm
, vif
);
3184 goto out_remove_binding
;
3188 /* Handle binding during CSA */
3189 if (vif
->type
== NL80211_IFTYPE_AP
) {
3190 iwl_mvm_update_quotas(mvm
, false, NULL
);
3191 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
3194 if (switching_chanctx
&& vif
->type
== NL80211_IFTYPE_STATION
) {
3195 u32 duration
= 2 * vif
->bss_conf
.beacon_int
;
3197 /* iwl_mvm_protect_session() reads directly from the
3198 * device (the system time), so make sure it is
3201 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PROTECT_CSA
);
3203 goto out_remove_binding
;
3205 /* Protect the session to make sure we hear the first
3206 * beacon on the new channel.
3208 iwl_mvm_protect_session(mvm
, vif
, duration
, duration
,
3209 vif
->bss_conf
.beacon_int
/ 2,
3212 iwl_mvm_unref(mvm
, IWL_MVM_REF_PROTECT_CSA
);
3214 iwl_mvm_update_quotas(mvm
, false, NULL
);
3220 iwl_mvm_binding_remove_vif(mvm
, vif
);
3221 iwl_mvm_power_update_mac(mvm
);
3224 mvmvif
->phy_ctxt
= NULL
;
3227 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
3228 struct ieee80211_vif
*vif
,
3229 struct ieee80211_chanctx_conf
*ctx
)
3231 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3234 mutex_lock(&mvm
->mutex
);
3235 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vif
, ctx
, false);
3236 mutex_unlock(&mvm
->mutex
);
3241 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm
*mvm
,
3242 struct ieee80211_vif
*vif
,
3243 struct ieee80211_chanctx_conf
*ctx
,
3244 bool switching_chanctx
)
3246 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3247 struct ieee80211_vif
*disabled_vif
= NULL
;
3249 lockdep_assert_held(&mvm
->mutex
);
3251 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
3253 switch (vif
->type
) {
3254 case NL80211_IFTYPE_ADHOC
:
3256 case NL80211_IFTYPE_MONITOR
:
3257 mvmvif
->monitor_active
= false;
3258 mvmvif
->ps_disabled
= false;
3259 iwl_mvm_rm_snif_sta(mvm
, vif
);
3261 case NL80211_IFTYPE_AP
:
3262 /* This part is triggered only during CSA */
3263 if (!switching_chanctx
|| !mvmvif
->ap_ibss_active
)
3266 mvmvif
->csa_countdown
= false;
3268 /* Set CS bit on all the stations */
3269 iwl_mvm_modify_all_sta_disable_tx(mvm
, mvmvif
, true);
3271 /* Save blocked iface, the timeout is set on the next beacon */
3272 rcu_assign_pointer(mvm
->csa_tx_blocked_vif
, vif
);
3274 mvmvif
->ap_ibss_active
= false;
3276 case NL80211_IFTYPE_STATION
:
3277 if (!switching_chanctx
)
3282 iwl_mvm_mac_ctxt_changed(mvm
, vif
, true, NULL
);
3288 iwl_mvm_update_quotas(mvm
, false, disabled_vif
);
3289 iwl_mvm_binding_remove_vif(mvm
, vif
);
3292 mvmvif
->phy_ctxt
= NULL
;
3293 iwl_mvm_power_update_mac(mvm
);
3296 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
3297 struct ieee80211_vif
*vif
,
3298 struct ieee80211_chanctx_conf
*ctx
)
3300 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3302 mutex_lock(&mvm
->mutex
);
3303 __iwl_mvm_unassign_vif_chanctx(mvm
, vif
, ctx
, false);
3304 mutex_unlock(&mvm
->mutex
);
3308 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm
*mvm
,
3309 struct ieee80211_vif_chanctx_switch
*vifs
)
3313 mutex_lock(&mvm
->mutex
);
3314 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
3315 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].old_ctx
);
3317 ret
= __iwl_mvm_add_chanctx(mvm
, vifs
[0].new_ctx
);
3319 IWL_ERR(mvm
, "failed to add new_ctx during channel switch\n");
3323 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
3327 "failed to assign new_ctx during channel switch\n");
3331 /* we don't support TDLS during DCM - can be caused by channel switch */
3332 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
3333 iwl_mvm_teardown_tdls_peers(mvm
);
3338 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].new_ctx
);
3341 if (__iwl_mvm_add_chanctx(mvm
, vifs
[0].old_ctx
)) {
3342 IWL_ERR(mvm
, "failed to add old_ctx back after failure.\n");
3346 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3348 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3355 /* things keep failing, better restart the hw */
3356 iwl_mvm_nic_restart(mvm
, false);
3359 mutex_unlock(&mvm
->mutex
);
3365 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm
*mvm
,
3366 struct ieee80211_vif_chanctx_switch
*vifs
)
3370 mutex_lock(&mvm
->mutex
);
3371 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
3373 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
3377 "failed to assign new_ctx during channel switch\n");
3384 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3386 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3393 /* things keep failing, better restart the hw */
3394 iwl_mvm_nic_restart(mvm
, false);
3397 mutex_unlock(&mvm
->mutex
);
3402 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw
*hw
,
3403 struct ieee80211_vif_chanctx_switch
*vifs
,
3405 enum ieee80211_chanctx_switch_mode mode
)
3407 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3410 /* we only support a single-vif right now */
3415 case CHANCTX_SWMODE_SWAP_CONTEXTS
:
3416 ret
= iwl_mvm_switch_vif_chanctx_swap(mvm
, vifs
);
3418 case CHANCTX_SWMODE_REASSIGN_VIF
:
3419 ret
= iwl_mvm_switch_vif_chanctx_reassign(mvm
, vifs
);
3429 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
3430 struct ieee80211_sta
*sta
,
3433 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3434 struct iwl_mvm_sta
*mvm_sta
= iwl_mvm_sta_from_mac80211(sta
);
3436 if (!mvm_sta
|| !mvm_sta
->vif
) {
3437 IWL_ERR(mvm
, "Station is not associated to a vif\n");
3441 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
3444 #ifdef CONFIG_NL80211_TESTMODE
3445 static const struct nla_policy iwl_mvm_tm_policy
[IWL_MVM_TM_ATTR_MAX
+ 1] = {
3446 [IWL_MVM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
3447 [IWL_MVM_TM_ATTR_NOA_DURATION
] = { .type
= NLA_U32
},
3448 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
] = { .type
= NLA_U32
},
3451 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm
*mvm
,
3452 struct ieee80211_vif
*vif
,
3453 void *data
, int len
)
3455 struct nlattr
*tb
[IWL_MVM_TM_ATTR_MAX
+ 1];
3459 err
= nla_parse(tb
, IWL_MVM_TM_ATTR_MAX
, data
, len
, iwl_mvm_tm_policy
);
3463 if (!tb
[IWL_MVM_TM_ATTR_CMD
])
3466 switch (nla_get_u32(tb
[IWL_MVM_TM_ATTR_CMD
])) {
3467 case IWL_MVM_TM_CMD_SET_NOA
:
3468 if (!vif
|| vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
||
3469 !vif
->bss_conf
.enable_beacon
||
3470 !tb
[IWL_MVM_TM_ATTR_NOA_DURATION
])
3473 noa_duration
= nla_get_u32(tb
[IWL_MVM_TM_ATTR_NOA_DURATION
]);
3474 if (noa_duration
>= vif
->bss_conf
.beacon_int
)
3477 mvm
->noa_duration
= noa_duration
;
3480 return iwl_mvm_update_quotas(mvm
, false, NULL
);
3481 case IWL_MVM_TM_CMD_SET_BEACON_FILTER
:
3482 /* must be associated client vif - ignore authorized */
3483 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
||
3484 !vif
->bss_conf
.assoc
|| !vif
->bss_conf
.dtim_period
||
3485 !tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
])
3488 if (nla_get_u32(tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
]))
3489 return iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
3490 return iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3496 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw
*hw
,
3497 struct ieee80211_vif
*vif
,
3498 void *data
, int len
)
3500 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3503 mutex_lock(&mvm
->mutex
);
3504 err
= __iwl_mvm_mac_testmode_cmd(mvm
, vif
, data
, len
);
3505 mutex_unlock(&mvm
->mutex
);
3511 static void iwl_mvm_channel_switch(struct ieee80211_hw
*hw
,
3512 struct ieee80211_vif
*vif
,
3513 struct ieee80211_channel_switch
*chsw
)
3515 /* By implementing this operation, we prevent mac80211 from
3516 * starting its own channel switch timer, so that we can call
3517 * ieee80211_chswitch_done() ourselves at the right time
3518 * (which is when the absence time event starts).
3521 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw
),
3522 "dummy channel switch op\n");
3525 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw
*hw
,
3526 struct ieee80211_vif
*vif
,
3527 struct ieee80211_channel_switch
*chsw
)
3529 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3530 struct ieee80211_vif
*csa_vif
;
3531 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3535 mutex_lock(&mvm
->mutex
);
3537 mvmvif
->csa_failed
= false;
3539 IWL_DEBUG_MAC80211(mvm
, "pre CSA to freq %d\n",
3540 chsw
->chandef
.center_freq1
);
3542 iwl_fw_dbg_trigger_simple_stop(mvm
, vif
, FW_DBG_TRIGGER_CHANNEL_SWITCH
);
3544 switch (vif
->type
) {
3545 case NL80211_IFTYPE_AP
:
3547 rcu_dereference_protected(mvm
->csa_vif
,
3548 lockdep_is_held(&mvm
->mutex
));
3549 if (WARN_ONCE(csa_vif
&& csa_vif
->csa_active
,
3550 "Another CSA is already in progress")) {
3555 rcu_assign_pointer(mvm
->csa_vif
, vif
);
3557 if (WARN_ONCE(mvmvif
->csa_countdown
,
3558 "Previous CSA countdown didn't complete")) {
3564 case NL80211_IFTYPE_STATION
:
3565 /* Schedule the time event to a bit before beacon 1,
3566 * to make sure we're in the new channel when the
3569 apply_time
= chsw
->device_timestamp
+
3570 ((vif
->bss_conf
.beacon_int
* (chsw
->count
- 1) -
3571 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT
) * 1024);
3574 iwl_mvm_csa_client_absent(mvm
, vif
);
3576 iwl_mvm_schedule_csa_period(mvm
, vif
, vif
->bss_conf
.beacon_int
,
3578 if (mvmvif
->bf_data
.bf_enabled
) {
3579 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3589 mvmvif
->ps_disabled
= true;
3591 ret
= iwl_mvm_power_update_ps(mvm
);
3595 /* we won't be on this channel any longer */
3596 iwl_mvm_teardown_tdls_peers(mvm
);
3599 mutex_unlock(&mvm
->mutex
);
3604 static int iwl_mvm_post_channel_switch(struct ieee80211_hw
*hw
,
3605 struct ieee80211_vif
*vif
)
3607 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3608 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3611 mutex_lock(&mvm
->mutex
);
3613 if (mvmvif
->csa_failed
) {
3614 mvmvif
->csa_failed
= false;
3619 if (vif
->type
== NL80211_IFTYPE_STATION
) {
3620 struct iwl_mvm_sta
*mvmsta
;
3622 mvmsta
= iwl_mvm_sta_from_staid_protected(mvm
,
3625 if (WARN_ON(!mvmsta
)) {
3630 iwl_mvm_sta_modify_disable_tx(mvm
, mvmsta
, false);
3632 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
3634 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
3638 iwl_mvm_stop_session_protection(mvm
, vif
);
3641 mvmvif
->ps_disabled
= false;
3643 ret
= iwl_mvm_power_update_ps(mvm
);
3646 mutex_unlock(&mvm
->mutex
);
3651 static void iwl_mvm_mac_flush(struct ieee80211_hw
*hw
,
3652 struct ieee80211_vif
*vif
, u32 queues
, bool drop
)
3654 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3655 struct iwl_mvm_vif
*mvmvif
;
3656 struct iwl_mvm_sta
*mvmsta
;
3657 struct ieee80211_sta
*sta
;
3661 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
)
3664 mutex_lock(&mvm
->mutex
);
3665 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3667 /* flush the AP-station and all TDLS peers */
3668 for (i
= 0; i
< IWL_MVM_STATION_COUNT
; i
++) {
3669 sta
= rcu_dereference_protected(mvm
->fw_id_to_mac_id
[i
],
3670 lockdep_is_held(&mvm
->mutex
));
3671 if (IS_ERR_OR_NULL(sta
))
3674 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
3675 if (mvmsta
->vif
!= vif
)
3678 /* make sure only TDLS peers or the AP are flushed */
3679 WARN_ON(i
!= mvmvif
->ap_sta_id
&& !sta
->tdls
);
3681 msk
|= mvmsta
->tfd_queue_msk
;
3685 if (iwl_mvm_flush_tx_path(mvm
, msk
, 0))
3686 IWL_ERR(mvm
, "flush request fail\n");
3687 mutex_unlock(&mvm
->mutex
);
3689 mutex_unlock(&mvm
->mutex
);
3691 /* this can take a while, and we may need/want other operations
3692 * to succeed while doing this, so do it without the mutex held
3694 iwl_trans_wait_tx_queue_empty(mvm
->trans
, msk
);
3698 static int iwl_mvm_mac_get_survey(struct ieee80211_hw
*hw
, int idx
,
3699 struct survey_info
*survey
)
3701 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3704 memset(survey
, 0, sizeof(*survey
));
3706 /* only support global statistics right now */
3710 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
3711 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS
))
3714 mutex_lock(&mvm
->mutex
);
3716 if (mvm
->ucode_loaded
) {
3717 ret
= iwl_mvm_request_statistics(mvm
, false);
3722 survey
->filled
= SURVEY_INFO_TIME
|
3723 SURVEY_INFO_TIME_RX
|
3724 SURVEY_INFO_TIME_TX
|
3725 SURVEY_INFO_TIME_SCAN
;
3726 survey
->time
= mvm
->accu_radio_stats
.on_time_rf
+
3727 mvm
->radio_stats
.on_time_rf
;
3728 do_div(survey
->time
, USEC_PER_MSEC
);
3730 survey
->time_rx
= mvm
->accu_radio_stats
.rx_time
+
3731 mvm
->radio_stats
.rx_time
;
3732 do_div(survey
->time_rx
, USEC_PER_MSEC
);
3734 survey
->time_tx
= mvm
->accu_radio_stats
.tx_time
+
3735 mvm
->radio_stats
.tx_time
;
3736 do_div(survey
->time_tx
, USEC_PER_MSEC
);
3738 survey
->time_scan
= mvm
->accu_radio_stats
.on_time_scan
+
3739 mvm
->radio_stats
.on_time_scan
;
3740 do_div(survey
->time_scan
, USEC_PER_MSEC
);
3744 mutex_unlock(&mvm
->mutex
);
3748 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw
*hw
,
3749 struct ieee80211_vif
*vif
,
3750 struct ieee80211_sta
*sta
,
3751 struct station_info
*sinfo
)
3753 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3754 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3755 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
3757 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
3758 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS
))
3761 /* if beacon filtering isn't on mac80211 does it anyway */
3762 if (!(vif
->driver_flags
& IEEE80211_VIF_BEACON_FILTER
))
3765 if (!vif
->bss_conf
.assoc
)
3768 mutex_lock(&mvm
->mutex
);
3770 if (mvmvif
->ap_sta_id
!= mvmsta
->sta_id
)
3773 if (iwl_mvm_request_statistics(mvm
, false))
3776 sinfo
->rx_beacon
= mvmvif
->beacon_stats
.num_beacons
+
3777 mvmvif
->beacon_stats
.accu_num_beacons
;
3778 sinfo
->filled
|= BIT(NL80211_STA_INFO_BEACON_RX
);
3779 if (mvmvif
->beacon_stats
.avg_signal
) {
3780 /* firmware only reports a value after RXing a few beacons */
3781 sinfo
->rx_beacon_signal_avg
= mvmvif
->beacon_stats
.avg_signal
;
3782 sinfo
->filled
|= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG
);
3785 mutex_unlock(&mvm
->mutex
);
3788 static void iwl_mvm_event_mlme_callback(struct iwl_mvm
*mvm
,
3789 struct ieee80211_vif
*vif
,
3790 const struct ieee80211_event
*event
)
3792 #define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
3794 if ((_cnt) && --(_cnt)) \
3796 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
3799 struct iwl_fw_dbg_trigger_tlv
*trig
;
3800 struct iwl_fw_dbg_trigger_mlme
*trig_mlme
;
3802 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_MLME
))
3805 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_MLME
);
3806 trig_mlme
= (void *)trig
->data
;
3807 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
3810 if (event
->u
.mlme
.data
== ASSOC_EVENT
) {
3811 if (event
->u
.mlme
.status
== MLME_DENIED
)
3812 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
3813 trig_mlme
->stop_assoc_denied
,
3814 "DENIED ASSOC: reason %d",
3815 event
->u
.mlme
.reason
);
3816 else if (event
->u
.mlme
.status
== MLME_TIMEOUT
)
3817 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
3818 trig_mlme
->stop_assoc_timeout
,
3820 } else if (event
->u
.mlme
.data
== AUTH_EVENT
) {
3821 if (event
->u
.mlme
.status
== MLME_DENIED
)
3822 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
3823 trig_mlme
->stop_auth_denied
,
3824 "DENIED AUTH: reason %d",
3825 event
->u
.mlme
.reason
);
3826 else if (event
->u
.mlme
.status
== MLME_TIMEOUT
)
3827 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
3828 trig_mlme
->stop_auth_timeout
,
3830 } else if (event
->u
.mlme
.data
== DEAUTH_RX_EVENT
) {
3831 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
3832 trig_mlme
->stop_rx_deauth
,
3833 "DEAUTH RX %d", event
->u
.mlme
.reason
);
3834 } else if (event
->u
.mlme
.data
== DEAUTH_TX_EVENT
) {
3835 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
3836 trig_mlme
->stop_tx_deauth
,
3837 "DEAUTH TX %d", event
->u
.mlme
.reason
);
3839 #undef CHECK_MLME_TRIGGER
3842 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm
*mvm
,
3843 struct ieee80211_vif
*vif
,
3844 const struct ieee80211_event
*event
)
3846 struct iwl_fw_dbg_trigger_tlv
*trig
;
3847 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
3849 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
3852 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
3853 ba_trig
= (void *)trig
->data
;
3854 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
3857 if (!(le16_to_cpu(ba_trig
->rx_bar
) & BIT(event
->u
.ba
.tid
)))
3860 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
3861 "BAR received from %pM, tid %d, ssn %d",
3862 event
->u
.ba
.sta
->addr
, event
->u
.ba
.tid
,
3867 iwl_mvm_event_frame_timeout_callback(struct iwl_mvm
*mvm
,
3868 struct ieee80211_vif
*vif
,
3869 const struct ieee80211_event
*event
)
3871 struct iwl_fw_dbg_trigger_tlv
*trig
;
3872 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
3874 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
3877 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
3878 ba_trig
= (void *)trig
->data
;
3879 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
3882 if (!(le16_to_cpu(ba_trig
->frame_timeout
) & BIT(event
->u
.ba
.tid
)))
3885 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
3886 "Frame from %pM timed out, tid %d",
3887 event
->u
.ba
.sta
->addr
, event
->u
.ba
.tid
);
3890 static void iwl_mvm_mac_event_callback(struct ieee80211_hw
*hw
,
3891 struct ieee80211_vif
*vif
,
3892 const struct ieee80211_event
*event
)
3894 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3896 switch (event
->type
) {
3898 iwl_mvm_event_mlme_callback(mvm
, vif
, event
);
3901 iwl_mvm_event_bar_rx_callback(mvm
, vif
, event
);
3903 case BA_FRAME_TIMEOUT
:
3904 iwl_mvm_event_frame_timeout_callback(mvm
, vif
, event
);
3911 const struct ieee80211_ops iwl_mvm_hw_ops
= {
3912 .tx
= iwl_mvm_mac_tx
,
3913 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
3914 .start
= iwl_mvm_mac_start
,
3915 .reconfig_complete
= iwl_mvm_mac_reconfig_complete
,
3916 .stop
= iwl_mvm_mac_stop
,
3917 .add_interface
= iwl_mvm_mac_add_interface
,
3918 .remove_interface
= iwl_mvm_mac_remove_interface
,
3919 .config
= iwl_mvm_mac_config
,
3920 .prepare_multicast
= iwl_mvm_prepare_multicast
,
3921 .configure_filter
= iwl_mvm_configure_filter
,
3922 .config_iface_filter
= iwl_mvm_config_iface_filter
,
3923 .bss_info_changed
= iwl_mvm_bss_info_changed
,
3924 .hw_scan
= iwl_mvm_mac_hw_scan
,
3925 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
3926 .sta_pre_rcu_remove
= iwl_mvm_sta_pre_rcu_remove
,
3927 .sta_state
= iwl_mvm_mac_sta_state
,
3928 .sta_notify
= iwl_mvm_mac_sta_notify
,
3929 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
3930 .release_buffered_frames
= iwl_mvm_mac_release_buffered_frames
,
3931 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
3932 .sta_rc_update
= iwl_mvm_sta_rc_update
,
3933 .conf_tx
= iwl_mvm_mac_conf_tx
,
3934 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
3935 .mgd_protect_tdls_discover
= iwl_mvm_mac_mgd_protect_tdls_discover
,
3936 .flush
= iwl_mvm_mac_flush
,
3937 .sched_scan_start
= iwl_mvm_mac_sched_scan_start
,
3938 .sched_scan_stop
= iwl_mvm_mac_sched_scan_stop
,
3939 .set_key
= iwl_mvm_mac_set_key
,
3940 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
3941 .remain_on_channel
= iwl_mvm_roc
,
3942 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
3943 .add_chanctx
= iwl_mvm_add_chanctx
,
3944 .remove_chanctx
= iwl_mvm_remove_chanctx
,
3945 .change_chanctx
= iwl_mvm_change_chanctx
,
3946 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
3947 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
3948 .switch_vif_chanctx
= iwl_mvm_switch_vif_chanctx
,
3950 .start_ap
= iwl_mvm_start_ap_ibss
,
3951 .stop_ap
= iwl_mvm_stop_ap_ibss
,
3952 .join_ibss
= iwl_mvm_start_ap_ibss
,
3953 .leave_ibss
= iwl_mvm_stop_ap_ibss
,
3955 .set_tim
= iwl_mvm_set_tim
,
3957 .channel_switch
= iwl_mvm_channel_switch
,
3958 .pre_channel_switch
= iwl_mvm_pre_channel_switch
,
3959 .post_channel_switch
= iwl_mvm_post_channel_switch
,
3961 .tdls_channel_switch
= iwl_mvm_tdls_channel_switch
,
3962 .tdls_cancel_channel_switch
= iwl_mvm_tdls_cancel_channel_switch
,
3963 .tdls_recv_channel_switch
= iwl_mvm_tdls_recv_channel_switch
,
3965 .event_callback
= iwl_mvm_mac_event_callback
,
3967 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd
)
3969 #ifdef CONFIG_PM_SLEEP
3971 .suspend
= iwl_mvm_suspend
,
3972 .resume
= iwl_mvm_resume
,
3973 .set_wakeup
= iwl_mvm_set_wakeup
,
3974 .set_rekey_data
= iwl_mvm_set_rekey_data
,
3975 #if IS_ENABLED(CONFIG_IPV6)
3976 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
3978 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,
3980 .get_survey
= iwl_mvm_mac_get_survey
,
3981 .sta_statistics
= iwl_mvm_mac_sta_statistics
,