1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
36 * All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *****************************************************************************/
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 <net/mac80211.h>
74 #include <net/ieee80211_radiotap.h>
77 #include "iwl-op-mode.h"
81 #include "time-event.h"
82 #include "iwl-eeprom-parse.h"
83 #include "fw-api-scan.h"
84 #include "iwl-phy-db.h"
86 #include "iwl-fw-error-dump.h"
89 static const struct ieee80211_iface_limit iwl_mvm_limits
[] = {
92 .types
= BIT(NL80211_IFTYPE_STATION
),
96 .types
= BIT(NL80211_IFTYPE_AP
) |
97 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
98 BIT(NL80211_IFTYPE_P2P_GO
),
102 .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
),
106 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations
[] = {
108 .num_different_channels
= 1,
110 .limits
= iwl_mvm_limits
,
111 .n_limits
= ARRAY_SIZE(iwl_mvm_limits
),
115 #ifdef CONFIG_PM_SLEEP
116 static const struct nl80211_wowlan_tcp_data_token_feature
117 iwl_mvm_wowlan_tcp_token_feature
= {
120 .bufsize
= IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS
,
123 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support
= {
124 .tok
= &iwl_mvm_wowlan_tcp_token_feature
,
125 .data_payload_max
= IWL_WOWLAN_TCP_MAX_PACKET_LEN
-
126 sizeof(struct ethhdr
) -
127 sizeof(struct iphdr
) -
128 sizeof(struct tcphdr
),
129 .data_interval_max
= 65535, /* __le16 in API */
130 .wake_payload_max
= IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN
-
131 sizeof(struct ethhdr
) -
132 sizeof(struct iphdr
) -
133 sizeof(struct tcphdr
),
138 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
140 * Use the reserved field to indicate magic values.
141 * these values will only be used internally by the driver,
142 * and won't make it to the fw (reserved will be 0).
143 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
144 * be the vif's ip address. in case there is not a single
145 * ip address (0, or more than 1), this attribute will
147 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
148 * the LSB bytes of the vif's mac address
151 BC_FILTER_MAGIC_NONE
= 0,
156 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters
[] = {
160 .frame_type
= BCAST_FILTER_FRAME_TYPE_ALL
,
163 /* frame type - arp, hw type - ethernet */
165 BCAST_FILTER_OFFSET_PAYLOAD_START
,
166 .offset
= sizeof(rfc1042_header
),
167 .val
= cpu_to_be32(0x08060001),
168 .mask
= cpu_to_be32(0xffffffff),
173 BCAST_FILTER_OFFSET_PAYLOAD_START
,
174 .offset
= sizeof(rfc1042_header
) + 2 +
175 sizeof(struct arphdr
) +
176 ETH_ALEN
+ sizeof(__be32
) +
178 .mask
= cpu_to_be32(0xffffffff),
179 /* mark it as special field */
180 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_IP
),
185 /* dhcp offer bcast */
187 .frame_type
= BCAST_FILTER_FRAME_TYPE_IPV4
,
190 /* udp dest port - 68 (bootp client)*/
191 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
192 .offset
= offsetof(struct udphdr
, dest
),
193 .val
= cpu_to_be32(0x00440000),
194 .mask
= cpu_to_be32(0xffff0000),
197 /* dhcp - lsb bytes of client hw address */
198 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
200 .mask
= cpu_to_be32(0xffffffff),
201 /* mark it as special field */
202 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_MAC
),
206 /* last filter must be empty */
211 void iwl_mvm_ref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
213 if (!iwl_mvm_is_d0i3_supported(mvm
))
216 IWL_DEBUG_RPM(mvm
, "Take mvm reference - type %d\n", ref_type
);
217 spin_lock_bh(&mvm
->refs_lock
);
218 mvm
->refs
[ref_type
]++;
219 spin_unlock_bh(&mvm
->refs_lock
);
220 iwl_trans_ref(mvm
->trans
);
223 void iwl_mvm_unref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
225 if (!iwl_mvm_is_d0i3_supported(mvm
))
228 IWL_DEBUG_RPM(mvm
, "Leave mvm reference - type %d\n", ref_type
);
229 spin_lock_bh(&mvm
->refs_lock
);
230 WARN_ON(!mvm
->refs
[ref_type
]--);
231 spin_unlock_bh(&mvm
->refs_lock
);
232 iwl_trans_unref(mvm
->trans
);
235 static void iwl_mvm_unref_all_except(struct iwl_mvm
*mvm
,
236 enum iwl_mvm_ref_type except_ref
)
240 if (!iwl_mvm_is_d0i3_supported(mvm
))
243 spin_lock_bh(&mvm
->refs_lock
);
244 for (i
= 0; i
< IWL_MVM_REF_COUNT
; i
++) {
245 if (except_ref
== i
|| !mvm
->refs
[i
])
248 IWL_DEBUG_RPM(mvm
, "Cleanup: remove mvm ref type %d (%d)\n",
250 for (j
= 0; j
< mvm
->refs
[i
]; j
++)
251 iwl_trans_unref(mvm
->trans
);
254 spin_unlock_bh(&mvm
->refs_lock
);
257 bool iwl_mvm_ref_taken(struct iwl_mvm
*mvm
)
262 if (!iwl_mvm_is_d0i3_supported(mvm
))
265 spin_lock_bh(&mvm
->refs_lock
);
266 for (i
= 0; i
< IWL_MVM_REF_COUNT
; i
++) {
272 spin_unlock_bh(&mvm
->refs_lock
);
277 int iwl_mvm_ref_sync(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
279 iwl_mvm_ref(mvm
, ref_type
);
281 if (!wait_event_timeout(mvm
->d0i3_exit_waitq
,
282 !test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
),
285 iwl_mvm_unref(mvm
, ref_type
);
292 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm
*mvm
)
296 memset(mvm
->phy_ctxts
, 0, sizeof(mvm
->phy_ctxts
));
297 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
298 mvm
->phy_ctxts
[i
].id
= i
;
299 mvm
->phy_ctxts
[i
].ref
= 0;
303 int iwl_mvm_mac_setup_register(struct iwl_mvm
*mvm
)
305 struct ieee80211_hw
*hw
= mvm
->hw
;
308 /* Tell mac80211 our characteristics */
309 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
310 IEEE80211_HW_SPECTRUM_MGMT
|
311 IEEE80211_HW_REPORTS_TX_ACK_STATUS
|
312 IEEE80211_HW_QUEUE_CONTROL
|
313 IEEE80211_HW_WANT_MONITOR_VIF
|
314 IEEE80211_HW_SUPPORTS_PS
|
315 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
|
316 IEEE80211_HW_AMPDU_AGGREGATION
|
317 IEEE80211_HW_TIMING_BEACON_ONLY
|
318 IEEE80211_HW_CONNECTION_MONITOR
|
319 IEEE80211_HW_CHANCTX_STA_CSA
|
320 IEEE80211_HW_SUPPORTS_CLONED_SKBS
;
322 hw
->queues
= mvm
->first_agg_queue
;
323 hw
->offchannel_tx_hw_queue
= IWL_MVM_OFFCHANNEL_QUEUE
;
324 hw
->radiotap_mcs_details
|= IEEE80211_RADIOTAP_MCS_HAVE_FEC
|
325 IEEE80211_RADIOTAP_MCS_HAVE_STBC
;
326 hw
->radiotap_vht_details
|= IEEE80211_RADIOTAP_VHT_KNOWN_STBC
|
327 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED
;
328 hw
->rate_control_algorithm
= "iwl-mvm-rs";
329 hw
->uapsd_queues
= IWL_MVM_UAPSD_QUEUES
;
330 hw
->uapsd_max_sp_len
= IWL_UAPSD_MAX_SP
;
333 * Enable 11w if advertised by firmware and software crypto
334 * is not enabled (as the firmware will interpret some mgmt
335 * packets, so enabling it with software crypto isn't safe)
337 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_MFP
&&
338 !iwlwifi_mod_params
.sw_crypto
)
339 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
341 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
||
342 mvm
->fw
->ucode_capa
.capa
[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN
) {
343 hw
->flags
|= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS
;
344 hw
->wiphy
->features
|=
345 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR
|
346 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR
;
349 hw
->sta_data_size
= sizeof(struct iwl_mvm_sta
);
350 hw
->vif_data_size
= sizeof(struct iwl_mvm_vif
);
351 hw
->chanctx_data_size
= sizeof(u16
);
353 hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
354 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
355 BIT(NL80211_IFTYPE_AP
) |
356 BIT(NL80211_IFTYPE_P2P_GO
) |
357 BIT(NL80211_IFTYPE_P2P_DEVICE
) |
358 BIT(NL80211_IFTYPE_ADHOC
);
360 hw
->wiphy
->flags
|= WIPHY_FLAG_IBSS_RSN
;
361 hw
->wiphy
->regulatory_flags
|= REGULATORY_CUSTOM_REG
|
362 REGULATORY_DISABLE_BEACON_HINTS
;
364 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_GO_UAPSD
)
365 hw
->wiphy
->flags
|= WIPHY_FLAG_AP_UAPSD
;
367 hw
->wiphy
->flags
|= WIPHY_FLAG_HAS_CHANNEL_SWITCH
;
369 hw
->wiphy
->iface_combinations
= iwl_mvm_iface_combinations
;
370 hw
->wiphy
->n_iface_combinations
=
371 ARRAY_SIZE(iwl_mvm_iface_combinations
);
373 hw
->wiphy
->max_remain_on_channel_duration
= 10000;
374 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
376 /* Extract MAC address */
377 memcpy(mvm
->addresses
[0].addr
, mvm
->nvm_data
->hw_addr
, ETH_ALEN
);
378 hw
->wiphy
->addresses
= mvm
->addresses
;
379 hw
->wiphy
->n_addresses
= 1;
381 /* Extract additional MAC addresses if available */
382 num_mac
= (mvm
->nvm_data
->n_hw_addrs
> 1) ?
383 min(IWL_MVM_MAX_ADDRESSES
, mvm
->nvm_data
->n_hw_addrs
) : 1;
385 for (i
= 1; i
< num_mac
; i
++) {
386 memcpy(mvm
->addresses
[i
].addr
, mvm
->addresses
[i
-1].addr
,
388 mvm
->addresses
[i
].addr
[5]++;
389 hw
->wiphy
->n_addresses
++;
392 iwl_mvm_reset_phy_ctxts(mvm
);
394 hw
->wiphy
->max_scan_ie_len
= iwl_mvm_max_scan_ie_len(mvm
, false);
396 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
398 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
399 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
400 &mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
];
401 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
402 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
403 &mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
];
405 hw
->wiphy
->hw_version
= mvm
->trans
->hw_id
;
407 if (iwlmvm_mod_params
.power_scheme
!= IWL_POWER_SCHEME_CAM
)
408 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
410 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
412 if (IWL_UCODE_API(mvm
->fw
->ucode_ver
) >= 10) {
413 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_SCHED_SCAN
;
414 hw
->wiphy
->max_sched_scan_ssids
= PROBE_OPTION_MAX
;
415 hw
->wiphy
->max_match_sets
= IWL_SCAN_MAX_PROFILES
;
416 /* we create the 802.11 header and zero length SSID IE. */
417 hw
->wiphy
->max_sched_scan_ie_len
=
418 SCAN_OFFLOAD_PROBE_REQ_SIZE
- 24 - 2;
421 hw
->wiphy
->features
|= NL80211_FEATURE_P2P_GO_CTWIN
|
422 NL80211_FEATURE_LOW_PRIORITY_SCAN
|
423 NL80211_FEATURE_P2P_GO_OPPPS
|
424 NL80211_FEATURE_DYNAMIC_SMPS
|
425 NL80211_FEATURE_STATIC_SMPS
|
426 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION
;
428 if (mvm
->fw
->ucode_capa
.capa
[0] &
429 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT
)
430 hw
->wiphy
->features
|= NL80211_FEATURE_TX_POWER_INSERTION
;
431 if (mvm
->fw
->ucode_capa
.capa
[0] &
432 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT
)
433 hw
->wiphy
->features
|= NL80211_FEATURE_QUIET
;
435 if (mvm
->fw
->ucode_capa
.capa
[0] &
436 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT
)
437 hw
->wiphy
->features
|=
438 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES
;
440 if (mvm
->fw
->ucode_capa
.capa
[0] &
441 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT
)
442 hw
->wiphy
->features
|= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES
;
444 mvm
->rts_threshold
= IEEE80211_MAX_RTS_THRESHOLD
;
446 /* currently FW API supports only one optional cipher scheme */
447 if (mvm
->fw
->cs
[0].cipher
) {
448 mvm
->hw
->n_cipher_schemes
= 1;
449 mvm
->hw
->cipher_schemes
= &mvm
->fw
->cs
[0];
452 #ifdef CONFIG_PM_SLEEP
453 if (iwl_mvm_is_d0i3_supported(mvm
) &&
454 device_can_wakeup(mvm
->trans
->dev
)) {
455 mvm
->wowlan
.flags
= WIPHY_WOWLAN_ANY
;
456 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
457 } else if (mvm
->fw
->img
[IWL_UCODE_WOWLAN
].sec
[0].len
&&
458 mvm
->trans
->ops
->d3_suspend
&&
459 mvm
->trans
->ops
->d3_resume
&&
460 device_can_wakeup(mvm
->trans
->dev
)) {
461 mvm
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
462 WIPHY_WOWLAN_DISCONNECT
|
463 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
464 WIPHY_WOWLAN_RFKILL_RELEASE
|
465 WIPHY_WOWLAN_NET_DETECT
;
466 if (!iwlwifi_mod_params
.sw_crypto
)
467 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
468 WIPHY_WOWLAN_GTK_REKEY_FAILURE
|
469 WIPHY_WOWLAN_4WAY_HANDSHAKE
;
471 mvm
->wowlan
.n_patterns
= IWL_WOWLAN_MAX_PATTERNS
;
472 mvm
->wowlan
.pattern_min_len
= IWL_WOWLAN_MIN_PATTERN_LEN
;
473 mvm
->wowlan
.pattern_max_len
= IWL_WOWLAN_MAX_PATTERN_LEN
;
474 mvm
->wowlan
.max_nd_match_sets
= IWL_SCAN_MAX_PROFILES
;
475 mvm
->wowlan
.tcp
= &iwl_mvm_wowlan_tcp_support
;
476 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
480 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
481 /* assign default bcast filtering configuration */
482 mvm
->bcast_filters
= iwl_mvm_default_bcast_filters
;
485 ret
= iwl_mvm_leds_init(mvm
);
489 if (mvm
->fw
->ucode_capa
.capa
[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT
) {
490 IWL_DEBUG_TDLS(mvm
, "TDLS supported\n");
491 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_TDLS
;
494 if (mvm
->fw
->ucode_capa
.capa
[0] &
495 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH
) {
496 IWL_DEBUG_TDLS(mvm
, "TDLS channel switch supported\n");
497 hw
->wiphy
->features
|= NL80211_FEATURE_TDLS_CHANNEL_SWITCH
;
500 ret
= ieee80211_register_hw(mvm
->hw
);
502 iwl_mvm_leds_exit(mvm
);
507 static bool iwl_mvm_defer_tx(struct iwl_mvm
*mvm
,
508 struct ieee80211_sta
*sta
,
511 struct iwl_mvm_sta
*mvmsta
;
515 * double check the IN_D0I3 flag both before and after
516 * taking the spinlock, in order to prevent taking
517 * the spinlock when not needed.
519 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
)))
522 spin_lock(&mvm
->d0i3_tx_lock
);
524 * testing the flag again ensures the skb dequeue
525 * loop (on d0i3 exit) hasn't run yet.
527 if (!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
))
530 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
531 if (mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
||
532 mvmsta
->sta_id
!= mvm
->d0i3_ap_sta_id
)
535 __skb_queue_tail(&mvm
->d0i3_tx
, skb
);
536 ieee80211_stop_queues(mvm
->hw
);
539 iwl_mvm_ref(mvm
, IWL_MVM_REF_TX
);
540 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX
);
544 spin_unlock(&mvm
->d0i3_tx_lock
);
548 static void iwl_mvm_mac_tx(struct ieee80211_hw
*hw
,
549 struct ieee80211_tx_control
*control
,
552 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
553 struct ieee80211_sta
*sta
= control
->sta
;
554 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
555 struct ieee80211_hdr
*hdr
= (void *)skb
->data
;
557 if (iwl_mvm_is_radio_killed(mvm
)) {
558 IWL_DEBUG_DROP(mvm
, "Dropping - RF/CT KILL\n");
562 if (IEEE80211_SKB_CB(skb
)->hw_queue
== IWL_MVM_OFFCHANNEL_QUEUE
&&
563 !test_bit(IWL_MVM_STATUS_ROC_RUNNING
, &mvm
->status
) &&
564 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING
, &mvm
->status
))
567 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
568 if (unlikely(info
->flags
& IEEE80211_TX_CTL_NO_PS_BUFFER
&&
569 ieee80211_is_mgmt(hdr
->frame_control
) &&
570 !ieee80211_is_deauth(hdr
->frame_control
) &&
571 !ieee80211_is_disassoc(hdr
->frame_control
) &&
572 !ieee80211_is_action(hdr
->frame_control
)))
576 if (iwl_mvm_defer_tx(mvm
, sta
, skb
))
578 if (iwl_mvm_tx_skb(mvm
, skb
, sta
))
583 if (iwl_mvm_tx_skb_non_sta(mvm
, skb
))
587 ieee80211_free_txskb(hw
, skb
);
590 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg
*cfg
)
592 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
)
597 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg
*cfg
)
599 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
)
601 if (iwlwifi_mod_params
.disable_11n
& IWL_ENABLE_HT_TXAGG
)
604 /* enabled by default */
608 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw
*hw
,
609 struct ieee80211_vif
*vif
,
610 enum ieee80211_ampdu_mlme_action action
,
611 struct ieee80211_sta
*sta
, u16 tid
,
612 u16
*ssn
, u8 buf_size
)
614 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
616 bool tx_agg_ref
= false;
618 IWL_DEBUG_HT(mvm
, "A-MPDU action on addr %pM tid %d: action %d\n",
619 sta
->addr
, tid
, action
);
621 if (!(mvm
->nvm_data
->sku_cap_11n_enable
))
624 /* return from D0i3 before starting a new Tx aggregation */
626 case IEEE80211_AMPDU_TX_START
:
627 case IEEE80211_AMPDU_TX_STOP_CONT
:
628 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
629 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
630 case IEEE80211_AMPDU_TX_OPERATIONAL
:
632 * for tx start, wait synchronously until D0i3 exit to
633 * get the correct sequence number for the tid.
634 * additionally, some other ampdu actions use direct
635 * target access, which is not handled automatically
636 * by the trans layer (unlike commands), so wait for
637 * d0i3 exit in these cases as well.
639 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_TX_AGG
);
649 mutex_lock(&mvm
->mutex
);
652 case IEEE80211_AMPDU_RX_START
:
653 if (!iwl_enable_rx_ampdu(mvm
->cfg
)) {
657 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, *ssn
, true);
659 case IEEE80211_AMPDU_RX_STOP
:
660 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, 0, false);
662 case IEEE80211_AMPDU_TX_START
:
663 if (!iwl_enable_tx_ampdu(mvm
->cfg
)) {
667 ret
= iwl_mvm_sta_tx_agg_start(mvm
, vif
, sta
, tid
, ssn
);
669 case IEEE80211_AMPDU_TX_STOP_CONT
:
670 ret
= iwl_mvm_sta_tx_agg_stop(mvm
, vif
, sta
, tid
);
672 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
673 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
674 ret
= iwl_mvm_sta_tx_agg_flush(mvm
, vif
, sta
, tid
);
676 case IEEE80211_AMPDU_TX_OPERATIONAL
:
677 ret
= iwl_mvm_sta_tx_agg_oper(mvm
, vif
, sta
, tid
, buf_size
);
684 mutex_unlock(&mvm
->mutex
);
687 * If the tid is marked as started, we won't use it for offloaded
688 * traffic on the next D0i3 entry. It's safe to unref.
691 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX_AGG
);
696 static void iwl_mvm_cleanup_iterator(void *data
, u8
*mac
,
697 struct ieee80211_vif
*vif
)
699 struct iwl_mvm
*mvm
= data
;
700 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
702 mvmvif
->uploaded
= false;
703 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
705 /* does this make sense at all? */
708 spin_lock_bh(&mvm
->time_event_lock
);
709 iwl_mvm_te_clear_data(mvm
, &mvmvif
->time_event_data
);
710 spin_unlock_bh(&mvm
->time_event_lock
);
712 mvmvif
->phy_ctxt
= NULL
;
713 memset(&mvmvif
->bf_data
, 0, sizeof(mvmvif
->bf_data
));
716 static ssize_t
iwl_mvm_read_coredump(char *buffer
, loff_t offset
, size_t count
,
717 const void *data
, size_t datalen
)
719 const struct iwl_mvm_dump_ptrs
*dump_ptrs
= data
;
721 ssize_t bytes_read_trans
;
723 if (offset
< dump_ptrs
->op_mode_len
) {
724 bytes_read
= min_t(ssize_t
, count
,
725 dump_ptrs
->op_mode_len
- offset
);
726 memcpy(buffer
, (u8
*)dump_ptrs
->op_mode_ptr
+ offset
,
728 offset
+= bytes_read
;
737 if (!dump_ptrs
->trans_ptr
)
740 offset
-= dump_ptrs
->op_mode_len
;
741 bytes_read_trans
= min_t(ssize_t
, count
,
742 dump_ptrs
->trans_ptr
->len
- offset
);
743 memcpy(buffer
+ bytes_read
,
744 (u8
*)dump_ptrs
->trans_ptr
->data
+ offset
,
747 return bytes_read
+ bytes_read_trans
;
750 static void iwl_mvm_free_coredump(const void *data
)
752 const struct iwl_mvm_dump_ptrs
*fw_error_dump
= data
;
754 vfree(fw_error_dump
->op_mode_ptr
);
755 vfree(fw_error_dump
->trans_ptr
);
756 kfree(fw_error_dump
);
759 void iwl_mvm_fw_error_dump(struct iwl_mvm
*mvm
)
761 struct iwl_fw_error_dump_file
*dump_file
;
762 struct iwl_fw_error_dump_data
*dump_data
;
763 struct iwl_fw_error_dump_info
*dump_info
;
764 struct iwl_mvm_dump_ptrs
*fw_error_dump
;
765 const struct fw_img
*img
;
766 u32 sram_len
, sram_ofs
;
767 u32 file_len
, rxf_len
;
771 lockdep_assert_held(&mvm
->mutex
);
773 fw_error_dump
= kzalloc(sizeof(*fw_error_dump
), GFP_KERNEL
);
777 img
= &mvm
->fw
->img
[mvm
->cur_ucode
];
778 sram_ofs
= img
->sec
[IWL_UCODE_SECTION_DATA
].offset
;
779 sram_len
= img
->sec
[IWL_UCODE_SECTION_DATA
].len
;
781 /* reading buffer size */
782 reg_val
= iwl_trans_read_prph(mvm
->trans
, RXF_SIZE_ADDR
);
783 rxf_len
= (reg_val
& RXF_SIZE_BYTE_CNT_MSK
) >> RXF_SIZE_BYTE_CND_POS
;
785 /* the register holds the value divided by 128 */
786 rxf_len
= rxf_len
<< 7;
788 file_len
= sizeof(*dump_file
) +
789 sizeof(*dump_data
) * 3 +
794 dump_file
= vzalloc(file_len
);
796 kfree(fw_error_dump
);
800 fw_error_dump
->op_mode_ptr
= dump_file
;
802 dump_file
->barker
= cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER
);
803 dump_data
= (void *)dump_file
->data
;
805 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO
);
806 dump_data
->len
= cpu_to_le32(sizeof(*dump_info
));
807 dump_info
= (void *) dump_data
->data
;
808 dump_info
->device_family
=
809 mvm
->cfg
->device_family
== IWL_DEVICE_FAMILY_7000
?
810 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7
) :
811 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8
);
812 memcpy(dump_info
->fw_human_readable
, mvm
->fw
->human_readable
,
813 sizeof(dump_info
->fw_human_readable
));
814 strncpy(dump_info
->dev_human_readable
, mvm
->cfg
->name
,
815 sizeof(dump_info
->dev_human_readable
));
816 strncpy(dump_info
->bus_human_readable
, mvm
->dev
->bus
->name
,
817 sizeof(dump_info
->bus_human_readable
));
819 dump_data
= iwl_fw_error_next_data(dump_data
);
820 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_RXF
);
821 dump_data
->len
= cpu_to_le32(rxf_len
);
823 if (iwl_trans_grab_nic_access(mvm
->trans
, false, &flags
)) {
824 u32
*rxf
= (void *)dump_data
->data
;
827 for (i
= 0; i
< (rxf_len
/ sizeof(u32
)); i
++) {
828 iwl_trans_write_prph(mvm
->trans
,
829 RXF_LD_FENCE_OFFSET_ADDR
,
831 rxf
[i
] = iwl_trans_read_prph(mvm
->trans
,
832 RXF_FIFO_RD_FENCE_ADDR
);
834 iwl_trans_release_nic_access(mvm
->trans
, &flags
);
837 dump_data
= iwl_fw_error_next_data(dump_data
);
838 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM
);
839 dump_data
->len
= cpu_to_le32(sram_len
);
840 iwl_trans_read_mem_bytes(mvm
->trans
, sram_ofs
, dump_data
->data
,
843 fw_error_dump
->trans_ptr
= iwl_trans_dump_data(mvm
->trans
);
844 fw_error_dump
->op_mode_len
= file_len
;
845 if (fw_error_dump
->trans_ptr
)
846 file_len
+= fw_error_dump
->trans_ptr
->len
;
847 dump_file
->file_len
= cpu_to_le32(file_len
);
849 dev_coredumpm(mvm
->trans
->dev
, THIS_MODULE
, fw_error_dump
, 0,
850 GFP_KERNEL
, iwl_mvm_read_coredump
, iwl_mvm_free_coredump
);
853 static void iwl_mvm_restart_cleanup(struct iwl_mvm
*mvm
)
855 /* clear the D3 reconfig, we only need it to avoid dumping a
856 * firmware coredump on reconfiguration, we shouldn't do that
857 * on D3->D0 transition
859 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG
, &mvm
->status
))
860 iwl_mvm_fw_error_dump(mvm
);
862 iwl_trans_stop_device(mvm
->trans
);
864 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
865 mvm
->ps_disabled
= false;
866 mvm
->calibrating
= false;
868 /* just in case one was running */
869 ieee80211_remain_on_channel_expired(mvm
->hw
);
871 ieee80211_iterate_active_interfaces_atomic(
872 mvm
->hw
, IEEE80211_IFACE_ITER_RESUME_ALL
,
873 iwl_mvm_cleanup_iterator
, mvm
);
875 mvm
->p2p_device_vif
= NULL
;
876 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
878 iwl_mvm_reset_phy_ctxts(mvm
);
879 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
880 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
881 memset(mvm
->tfd_drained
, 0, sizeof(mvm
->tfd_drained
));
882 memset(&mvm
->last_bt_notif
, 0, sizeof(mvm
->last_bt_notif
));
883 memset(&mvm
->last_bt_notif_old
, 0, sizeof(mvm
->last_bt_notif_old
));
884 memset(&mvm
->last_bt_ci_cmd
, 0, sizeof(mvm
->last_bt_ci_cmd
));
885 memset(&mvm
->last_bt_ci_cmd_old
, 0, sizeof(mvm
->last_bt_ci_cmd_old
));
886 memset(&mvm
->bt_ack_kill_msk
, 0, sizeof(mvm
->bt_ack_kill_msk
));
887 memset(&mvm
->bt_cts_kill_msk
, 0, sizeof(mvm
->bt_cts_kill_msk
));
889 ieee80211_wake_queues(mvm
->hw
);
891 /* cleanup all stale references (scan, roc), but keep the
892 * ucode_down ref until reconfig is complete */
893 iwl_mvm_unref_all_except(mvm
, IWL_MVM_REF_UCODE_DOWN
);
895 /* clear any stale d0i3 state */
896 clear_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
);
899 mvm
->rx_ba_sessions
= 0;
902 int __iwl_mvm_mac_start(struct iwl_mvm
*mvm
)
906 lockdep_assert_held(&mvm
->mutex
);
908 /* Clean up some internal and mac80211 state on restart */
909 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
910 iwl_mvm_restart_cleanup(mvm
);
912 ret
= iwl_mvm_up(mvm
);
914 if (ret
&& test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
915 /* Something went wrong - we need to finish some cleanup
916 * that normally iwl_mvm_mac_restart_complete() below
919 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
920 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
926 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
928 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
931 mutex_lock(&mvm
->mutex
);
932 ret
= __iwl_mvm_mac_start(mvm
);
933 mutex_unlock(&mvm
->mutex
);
938 static void iwl_mvm_restart_complete(struct iwl_mvm
*mvm
)
942 mutex_lock(&mvm
->mutex
);
944 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
945 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
946 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
948 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
951 /* allow transport/FW low power modes */
952 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
955 * If we have TDLS peers, remove them. We don't know the last seqno/PN
956 * of packets the FW sent out, so we must reconnect.
958 iwl_mvm_teardown_tdls_peers(mvm
);
960 mutex_unlock(&mvm
->mutex
);
963 static void iwl_mvm_resume_complete(struct iwl_mvm
*mvm
)
967 if (!iwl_mvm_is_d0i3_supported(mvm
))
970 mutex_lock(&mvm
->d0i3_suspend_mutex
);
971 __clear_bit(D0I3_DEFER_WAKEUP
, &mvm
->d0i3_suspend_flags
);
972 exit_now
= __test_and_clear_bit(D0I3_PENDING_WAKEUP
,
973 &mvm
->d0i3_suspend_flags
);
974 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
977 IWL_DEBUG_RPM(mvm
, "Run deferred d0i3 exit\n");
978 _iwl_mvm_exit_d0i3(mvm
);
983 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw
*hw
,
984 enum ieee80211_reconfig_type reconfig_type
)
986 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
988 switch (reconfig_type
) {
989 case IEEE80211_RECONFIG_TYPE_RESTART
:
990 iwl_mvm_restart_complete(mvm
);
992 case IEEE80211_RECONFIG_TYPE_SUSPEND
:
993 iwl_mvm_resume_complete(mvm
);
998 void __iwl_mvm_mac_stop(struct iwl_mvm
*mvm
)
1000 lockdep_assert_held(&mvm
->mutex
);
1003 * Disallow low power states when the FW is down by taking
1004 * the UCODE_DOWN ref. in case of ongoing hw restart the
1005 * ref is already taken, so don't take it again.
1007 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
1008 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1010 /* async_handlers_wk is now blocked */
1013 * The work item could be running or queued if the
1014 * ROC time event stops just as we get here.
1016 cancel_work_sync(&mvm
->roc_done_wk
);
1018 iwl_trans_stop_device(mvm
->trans
);
1020 iwl_mvm_async_handlers_purge(mvm
);
1021 /* async_handlers_list is empty and will stay empty: HW is stopped */
1023 /* the fw is stopped, the aux sta is dead: clean up driver state */
1024 iwl_mvm_del_aux_sta(mvm
);
1027 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1028 * won't be called in this case).
1030 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1032 mvm
->ucode_loaded
= false;
1035 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
1037 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1039 flush_work(&mvm
->d0i3_exit_work
);
1040 flush_work(&mvm
->async_handlers_wk
);
1041 flush_work(&mvm
->fw_error_dump_wk
);
1043 mutex_lock(&mvm
->mutex
);
1044 __iwl_mvm_mac_stop(mvm
);
1045 mutex_unlock(&mvm
->mutex
);
1048 * The worker might have been waiting for the mutex, let it run and
1049 * discover that its list is now empty.
1051 cancel_work_sync(&mvm
->async_handlers_wk
);
1054 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
1058 lockdep_assert_held(&mvm
->mutex
);
1060 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
1061 if (!mvm
->phy_ctxts
[i
].ref
)
1062 return &mvm
->phy_ctxts
[i
];
1064 IWL_ERR(mvm
, "No available PHY context\n");
1068 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
1071 /* FW is in charge of regulatory enforcement */
1072 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd
= {
1073 .mac_context_id
= iwl_mvm_vif_from_mac80211(vif
)->id
,
1074 .pwr_restriction
= cpu_to_le16(tx_power
),
1077 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, 0,
1078 sizeof(reduce_txpwr_cmd
),
1082 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
1083 struct ieee80211_vif
*vif
)
1085 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1086 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1090 * make sure D0i3 exit is completed, otherwise a target access
1091 * during tx queue configuration could be done when still in
1094 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_ADD_IF
);
1099 * Not much to do here. The stack will not allow interface
1100 * types or combinations that we didn't advertise, so we
1101 * don't really have to check the types.
1104 mutex_lock(&mvm
->mutex
);
1106 /* Allocate resources for the MAC context, and add it to the fw */
1107 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
1111 /* Counting number of interfaces is needed for legacy PM */
1112 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1116 * The AP binding flow can be done only after the beacon
1117 * template is configured (which happens only in the mac80211
1118 * start_ap() flow), and adding the broadcast station can happen
1119 * only after the binding.
1120 * In addition, since modifying the MAC before adding a bcast
1121 * station is not allowed by the FW, delay the adding of MAC context to
1122 * the point where we can also add the bcast station.
1123 * In short: there's not much we can do at this point, other than
1124 * allocating resources :)
1126 if (vif
->type
== NL80211_IFTYPE_AP
||
1127 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1128 ret
= iwl_mvm_alloc_bcast_sta(mvm
, vif
);
1130 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
1134 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1138 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1142 ret
= iwl_mvm_power_update_mac(mvm
);
1146 /* beacon filtering */
1147 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
1149 goto out_remove_mac
;
1151 if (!mvm
->bf_allowed_vif
&&
1152 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
) {
1153 mvm
->bf_allowed_vif
= mvmvif
;
1154 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
1155 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
1156 if (mvm
->fw
->ucode_capa
.flags
&
1157 IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT
&&
1158 !iwlwifi_mod_params
.uapsd_disable
)
1159 vif
->driver_flags
|= IEEE80211_VIF_SUPPORTS_UAPSD
;
1163 * P2P_DEVICE interface does not have a channel context assigned to it,
1164 * so a dedicated PHY context is allocated to it and the corresponding
1165 * MAC context is bound to it at this stage.
1167 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1169 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1170 if (!mvmvif
->phy_ctxt
) {
1175 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1176 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1180 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
);
1184 /* Save a pointer to p2p device vif, so it can later be used to
1185 * update the p2p device MAC when a GO is started/stopped */
1186 mvm
->p2p_device_vif
= vif
;
1189 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1193 iwl_mvm_binding_remove_vif(mvm
, vif
);
1195 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1197 if (mvm
->bf_allowed_vif
== mvmvif
) {
1198 mvm
->bf_allowed_vif
= NULL
;
1199 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1200 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1203 mvmvif
->phy_ctxt
= NULL
;
1204 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1206 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1209 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1211 mutex_unlock(&mvm
->mutex
);
1213 iwl_mvm_unref(mvm
, IWL_MVM_REF_ADD_IF
);
1218 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
1219 struct ieee80211_vif
*vif
)
1221 u32 tfd_msk
= iwl_mvm_mac_get_queues_mask(vif
);
1224 mutex_lock(&mvm
->mutex
);
1225 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, true);
1226 mutex_unlock(&mvm
->mutex
);
1229 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1231 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1232 * We assume here that all the packets sent to the OFFCHANNEL
1233 * queue are sent in ROC session.
1235 flush_work(&mvm
->roc_done_wk
);
1238 * By now, all the AC queues are empty. The AGG queues are
1239 * empty too. We already got all the Tx responses for all the
1240 * packets in the queues. The drain work can have been
1241 * triggered. Flush it.
1243 flush_work(&mvm
->sta_drained_wk
);
1247 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
1248 struct ieee80211_vif
*vif
)
1250 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1251 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1253 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1255 mutex_lock(&mvm
->mutex
);
1257 if (mvm
->bf_allowed_vif
== mvmvif
) {
1258 mvm
->bf_allowed_vif
= NULL
;
1259 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1260 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1263 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
1266 * For AP/GO interface, the tear down of the resources allocated to the
1267 * interface is be handled as part of the stop_ap flow.
1269 if (vif
->type
== NL80211_IFTYPE_AP
||
1270 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1271 #ifdef CONFIG_NL80211_TESTMODE
1272 if (vif
== mvm
->noa_vif
) {
1273 mvm
->noa_vif
= NULL
;
1274 mvm
->noa_duration
= 0;
1277 iwl_mvm_dealloc_bcast_sta(mvm
, vif
);
1281 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1282 mvm
->p2p_device_vif
= NULL
;
1283 iwl_mvm_rm_bcast_sta(mvm
, vif
);
1284 iwl_mvm_binding_remove_vif(mvm
, vif
);
1285 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1286 mvmvif
->phy_ctxt
= NULL
;
1289 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1292 iwl_mvm_power_update_mac(mvm
);
1293 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1296 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1297 mutex_unlock(&mvm
->mutex
);
1300 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
1305 struct iwl_mvm_mc_iter_data
{
1306 struct iwl_mvm
*mvm
;
1310 static void iwl_mvm_mc_iface_iterator(void *_data
, u8
*mac
,
1311 struct ieee80211_vif
*vif
)
1313 struct iwl_mvm_mc_iter_data
*data
= _data
;
1314 struct iwl_mvm
*mvm
= data
->mvm
;
1315 struct iwl_mcast_filter_cmd
*cmd
= mvm
->mcast_filter_cmd
;
1318 /* if we don't have free ports, mcast frames will be dropped */
1319 if (WARN_ON_ONCE(data
->port_id
>= MAX_PORT_ID_NUM
))
1322 if (vif
->type
!= NL80211_IFTYPE_STATION
||
1323 !vif
->bss_conf
.assoc
)
1326 cmd
->port_id
= data
->port_id
++;
1327 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
1328 len
= roundup(sizeof(*cmd
) + cmd
->count
* ETH_ALEN
, 4);
1330 ret
= iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_ASYNC
, len
, cmd
);
1332 IWL_ERR(mvm
, "mcast filter cmd error. ret=%d\n", ret
);
1335 static void iwl_mvm_recalc_multicast(struct iwl_mvm
*mvm
)
1337 struct iwl_mvm_mc_iter_data iter_data
= {
1341 lockdep_assert_held(&mvm
->mutex
);
1343 if (WARN_ON_ONCE(!mvm
->mcast_filter_cmd
))
1346 ieee80211_iterate_active_interfaces_atomic(
1347 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1348 iwl_mvm_mc_iface_iterator
, &iter_data
);
1351 static u64
iwl_mvm_prepare_multicast(struct ieee80211_hw
*hw
,
1352 struct netdev_hw_addr_list
*mc_list
)
1354 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1355 struct iwl_mcast_filter_cmd
*cmd
;
1356 struct netdev_hw_addr
*addr
;
1361 addr_count
= netdev_hw_addr_list_count(mc_list
);
1362 pass_all
= addr_count
> MAX_MCAST_FILTERING_ADDRESSES
||
1363 IWL_MVM_FW_MCAST_FILTER_PASS_ALL
;
1367 len
= roundup(sizeof(*cmd
) + addr_count
* ETH_ALEN
, 4);
1368 cmd
= kzalloc(len
, GFP_ATOMIC
);
1374 return (u64
)(unsigned long)cmd
;
1377 netdev_hw_addr_list_for_each(addr
, mc_list
) {
1378 IWL_DEBUG_MAC80211(mvm
, "mcast addr (%d): %pM\n",
1379 cmd
->count
, addr
->addr
);
1380 memcpy(&cmd
->addr_list
[cmd
->count
* ETH_ALEN
],
1381 addr
->addr
, ETH_ALEN
);
1385 return (u64
)(unsigned long)cmd
;
1388 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
1389 unsigned int changed_flags
,
1390 unsigned int *total_flags
,
1393 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1394 struct iwl_mcast_filter_cmd
*cmd
= (void *)(unsigned long)multicast
;
1396 mutex_lock(&mvm
->mutex
);
1398 /* replace previous configuration */
1399 kfree(mvm
->mcast_filter_cmd
);
1400 mvm
->mcast_filter_cmd
= cmd
;
1405 iwl_mvm_recalc_multicast(mvm
);
1407 mutex_unlock(&mvm
->mutex
);
1411 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1412 struct iwl_bcast_iter_data
{
1413 struct iwl_mvm
*mvm
;
1414 struct iwl_bcast_filter_cmd
*cmd
;
1419 iwl_mvm_set_bcast_filter(struct ieee80211_vif
*vif
,
1420 const struct iwl_fw_bcast_filter
*in_filter
,
1421 struct iwl_fw_bcast_filter
*out_filter
)
1423 struct iwl_fw_bcast_filter_attr
*attr
;
1426 memcpy(out_filter
, in_filter
, sizeof(*out_filter
));
1428 for (i
= 0; i
< ARRAY_SIZE(out_filter
->attrs
); i
++) {
1429 attr
= &out_filter
->attrs
[i
];
1434 switch (attr
->reserved1
) {
1435 case cpu_to_le16(BC_FILTER_MAGIC_IP
):
1436 if (vif
->bss_conf
.arp_addr_cnt
!= 1) {
1441 attr
->val
= vif
->bss_conf
.arp_addr_list
[0];
1443 case cpu_to_le16(BC_FILTER_MAGIC_MAC
):
1444 attr
->val
= *(__be32
*)&vif
->addr
[2];
1449 attr
->reserved1
= 0;
1450 out_filter
->num_attrs
++;
1454 static void iwl_mvm_bcast_filter_iterator(void *_data
, u8
*mac
,
1455 struct ieee80211_vif
*vif
)
1457 struct iwl_bcast_iter_data
*data
= _data
;
1458 struct iwl_mvm
*mvm
= data
->mvm
;
1459 struct iwl_bcast_filter_cmd
*cmd
= data
->cmd
;
1460 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1461 struct iwl_fw_bcast_mac
*bcast_mac
;
1464 if (WARN_ON(mvmvif
->id
>= ARRAY_SIZE(cmd
->macs
)))
1467 bcast_mac
= &cmd
->macs
[mvmvif
->id
];
1470 * enable filtering only for associated stations, but not for P2P
1473 if (vif
->type
!= NL80211_IFTYPE_STATION
|| vif
->p2p
||
1474 !vif
->bss_conf
.assoc
)
1477 bcast_mac
->default_discard
= 1;
1479 /* copy all configured filters */
1480 for (i
= 0; mvm
->bcast_filters
[i
].attrs
[0].mask
; i
++) {
1482 * Make sure we don't exceed our filters limit.
1483 * if there is still a valid filter to be configured,
1484 * be on the safe side and just allow bcast for this mac.
1486 if (WARN_ON_ONCE(data
->current_filter
>=
1487 ARRAY_SIZE(cmd
->filters
))) {
1488 bcast_mac
->default_discard
= 0;
1489 bcast_mac
->attached_filters
= 0;
1493 iwl_mvm_set_bcast_filter(vif
,
1494 &mvm
->bcast_filters
[i
],
1495 &cmd
->filters
[data
->current_filter
]);
1497 /* skip current filter if it contains no attributes */
1498 if (!cmd
->filters
[data
->current_filter
].num_attrs
)
1501 /* attach the filter to current mac */
1502 bcast_mac
->attached_filters
|=
1503 cpu_to_le16(BIT(data
->current_filter
));
1505 data
->current_filter
++;
1509 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm
*mvm
,
1510 struct iwl_bcast_filter_cmd
*cmd
)
1512 struct iwl_bcast_iter_data iter_data
= {
1517 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL
)
1520 memset(cmd
, 0, sizeof(*cmd
));
1521 cmd
->max_bcast_filters
= ARRAY_SIZE(cmd
->filters
);
1522 cmd
->max_macs
= ARRAY_SIZE(cmd
->macs
);
1524 #ifdef CONFIG_IWLWIFI_DEBUGFS
1525 /* use debugfs filters/macs if override is configured */
1526 if (mvm
->dbgfs_bcast_filtering
.override
) {
1527 memcpy(cmd
->filters
, &mvm
->dbgfs_bcast_filtering
.cmd
.filters
,
1528 sizeof(cmd
->filters
));
1529 memcpy(cmd
->macs
, &mvm
->dbgfs_bcast_filtering
.cmd
.macs
,
1535 /* if no filters are configured, do nothing */
1536 if (!mvm
->bcast_filters
)
1539 /* configure and attach these filters for each associated sta vif */
1540 ieee80211_iterate_active_interfaces(
1541 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1542 iwl_mvm_bcast_filter_iterator
, &iter_data
);
1546 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1547 struct ieee80211_vif
*vif
)
1549 struct iwl_bcast_filter_cmd cmd
;
1551 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BCAST_FILTERING
))
1554 if (!iwl_mvm_bcast_filter_build_cmd(mvm
, &cmd
))
1557 return iwl_mvm_send_cmd_pdu(mvm
, BCAST_FILTER_CMD
, 0,
1561 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1562 struct ieee80211_vif
*vif
)
1568 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
1569 struct ieee80211_vif
*vif
,
1570 struct ieee80211_bss_conf
*bss_conf
,
1573 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1577 * Re-calculate the tsf id, as the master-slave relations depend on the
1578 * beacon interval, which was not known when the station interface was
1581 if (changes
& BSS_CHANGED_ASSOC
&& bss_conf
->assoc
)
1582 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1585 * If we're not associated yet, take the (new) BSSID before associating
1586 * so the firmware knows. If we're already associated, then use the old
1587 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1588 * branch for disassociation below.
1590 if (changes
& BSS_CHANGED_BSSID
&& !mvmvif
->associated
)
1591 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1593 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, mvmvif
->bssid
);
1595 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1597 /* after sending it once, adopt mac80211 data */
1598 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1599 mvmvif
->associated
= bss_conf
->assoc
;
1601 if (changes
& BSS_CHANGED_ASSOC
) {
1602 if (bss_conf
->assoc
) {
1603 /* add quota for this interface */
1604 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1606 IWL_ERR(mvm
, "failed to update quotas\n");
1610 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
1613 * If we're restarting then the firmware will
1614 * obviously have lost synchronisation with
1615 * the AP. It will attempt to synchronise by
1616 * itself, but we can make it more reliable by
1617 * scheduling a session protection time event.
1619 * The firmware needs to receive a beacon to
1620 * catch up with synchronisation, use 110% of
1621 * the beacon interval.
1623 * Set a large maximum delay to allow for more
1624 * than a single interface.
1626 u32 dur
= (11 * vif
->bss_conf
.beacon_int
) / 10;
1627 iwl_mvm_protect_session(mvm
, vif
, dur
, dur
,
1631 iwl_mvm_sf_update(mvm
, vif
, false);
1632 iwl_mvm_power_vif_assoc(mvm
, vif
);
1634 iwl_mvm_ref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1635 iwl_mvm_update_smps(mvm
, vif
,
1636 IWL_MVM_SMPS_REQ_PROT
,
1637 IEEE80211_SMPS_DYNAMIC
);
1639 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_STATION_COUNT
) {
1641 * If update fails - SF might be running in associated
1642 * mode while disassociated - which is forbidden.
1644 WARN_ONCE(iwl_mvm_sf_update(mvm
, vif
, false),
1645 "Failed to update SF upon disassociation\n");
1647 /* remove AP station now that the MAC is unassoc */
1648 ret
= iwl_mvm_rm_sta_id(mvm
, vif
, mvmvif
->ap_sta_id
);
1650 IWL_ERR(mvm
, "failed to remove AP station\n");
1652 if (mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
1653 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1654 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
1655 /* remove quota for this interface */
1656 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1658 IWL_ERR(mvm
, "failed to update quotas\n");
1661 iwl_mvm_unref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1663 /* this will take the cleared BSSID from bss_conf */
1664 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
1667 "failed to update MAC %pM (clear after unassoc)\n",
1671 iwl_mvm_recalc_multicast(mvm
);
1672 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1674 /* reset rssi values */
1675 mvmvif
->bf_data
.ave_beacon_signal
= 0;
1677 iwl_mvm_bt_coex_vif_change(mvm
);
1678 iwl_mvm_update_smps(mvm
, vif
, IWL_MVM_SMPS_REQ_TT
,
1679 IEEE80211_SMPS_AUTOMATIC
);
1680 } else if (changes
& BSS_CHANGED_BEACON_INFO
) {
1682 * We received a beacon _after_ association so
1683 * remove the session protection.
1685 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1686 &mvmvif
->time_event_data
);
1689 if (changes
& BSS_CHANGED_BEACON_INFO
) {
1690 iwl_mvm_sf_update(mvm
, vif
, false);
1691 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
1694 if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_P2P_PS
| BSS_CHANGED_QOS
)) {
1695 ret
= iwl_mvm_power_update_mac(mvm
);
1697 IWL_ERR(mvm
, "failed to update power mode\n");
1700 if (changes
& BSS_CHANGED_TXPOWER
) {
1701 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
1703 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
1706 if (changes
& BSS_CHANGED_CQM
) {
1707 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed\n");
1708 /* reset cqm events tracking */
1709 mvmvif
->bf_data
.last_cqm_event
= 0;
1710 if (mvmvif
->bf_data
.bf_enabled
) {
1711 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
1714 "failed to update CQM thresholds\n");
1718 if (changes
& BSS_CHANGED_ARP_FILTER
) {
1719 IWL_DEBUG_MAC80211(mvm
, "arp filter changed\n");
1720 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1724 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw
*hw
,
1725 struct ieee80211_vif
*vif
)
1727 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1728 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1732 * iwl_mvm_mac_ctxt_add() might read directly from the device
1733 * (the system time), so make sure it is available.
1735 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_START_AP
);
1739 mutex_lock(&mvm
->mutex
);
1741 /* Send the beacon template */
1742 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
1747 * Re-calculate the tsf id, as the master-slave relations depend on the
1748 * beacon interval, which was not known when the AP interface was added.
1750 if (vif
->type
== NL80211_IFTYPE_AP
)
1751 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1753 /* Add the mac context */
1754 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1758 /* Perform the binding */
1759 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1763 /* Send the bcast station. At this stage the TBTT and DTIM time events
1764 * are added and applied to the scheduler */
1765 ret
= iwl_mvm_send_add_bcast_sta(mvm
, vif
);
1769 /* must be set before quota calculations */
1770 mvmvif
->ap_ibss_active
= true;
1772 /* power updated needs to be done before quotas */
1773 iwl_mvm_power_update_mac(mvm
);
1775 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1777 goto out_quota_failed
;
1779 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1780 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1781 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
1783 iwl_mvm_ref(mvm
, IWL_MVM_REF_AP_IBSS
);
1785 iwl_mvm_bt_coex_vif_change(mvm
);
1787 /* we don't support TDLS during DCM */
1788 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
1789 iwl_mvm_teardown_tdls_peers(mvm
);
1791 mutex_unlock(&mvm
->mutex
);
1795 iwl_mvm_power_update_mac(mvm
);
1796 mvmvif
->ap_ibss_active
= false;
1797 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
1799 iwl_mvm_binding_remove_vif(mvm
, vif
);
1801 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1803 mutex_unlock(&mvm
->mutex
);
1804 iwl_mvm_unref(mvm
, IWL_MVM_REF_START_AP
);
1808 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw
*hw
,
1809 struct ieee80211_vif
*vif
)
1811 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1812 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1814 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1816 mutex_lock(&mvm
->mutex
);
1818 /* Handle AP stop while in CSA */
1819 if (rcu_access_pointer(mvm
->csa_vif
) == vif
) {
1820 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1821 &mvmvif
->time_event_data
);
1822 RCU_INIT_POINTER(mvm
->csa_vif
, NULL
);
1825 if (rcu_access_pointer(mvm
->csa_tx_blocked_vif
) == vif
) {
1826 RCU_INIT_POINTER(mvm
->csa_tx_blocked_vif
, NULL
);
1827 mvm
->csa_tx_block_bcn_timeout
= 0;
1830 mvmvif
->ap_ibss_active
= false;
1831 mvm
->ap_last_beacon_gp2
= 0;
1833 iwl_mvm_bt_coex_vif_change(mvm
);
1835 iwl_mvm_unref(mvm
, IWL_MVM_REF_AP_IBSS
);
1837 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1838 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1839 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
1841 iwl_mvm_update_quotas(mvm
, NULL
);
1842 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
1843 iwl_mvm_binding_remove_vif(mvm
, vif
);
1845 iwl_mvm_power_update_mac(mvm
);
1847 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1849 mutex_unlock(&mvm
->mutex
);
1853 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm
*mvm
,
1854 struct ieee80211_vif
*vif
,
1855 struct ieee80211_bss_conf
*bss_conf
,
1858 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1860 /* Changes will be applied when the AP/IBSS is started */
1861 if (!mvmvif
->ap_ibss_active
)
1864 if (changes
& (BSS_CHANGED_ERP_CTS_PROT
| BSS_CHANGED_HT
|
1865 BSS_CHANGED_BANDWIDTH
| BSS_CHANGED_QOS
) &&
1866 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
))
1867 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1869 /* Need to send a new beacon template to the FW */
1870 if (changes
& BSS_CHANGED_BEACON
&&
1871 iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
1872 IWL_WARN(mvm
, "Failed updating beacon data\n");
1874 if (changes
& BSS_CHANGED_TXPOWER
) {
1875 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
1877 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
1882 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
1883 struct ieee80211_vif
*vif
,
1884 struct ieee80211_bss_conf
*bss_conf
,
1887 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1890 * iwl_mvm_bss_info_changed_station() might call
1891 * iwl_mvm_protect_session(), which reads directly from
1892 * the device (the system time), so make sure it is available.
1894 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_BSS_CHANGED
))
1897 mutex_lock(&mvm
->mutex
);
1899 if (changes
& BSS_CHANGED_IDLE
&& !bss_conf
->idle
)
1900 iwl_mvm_scan_offload_stop(mvm
, true);
1902 switch (vif
->type
) {
1903 case NL80211_IFTYPE_STATION
:
1904 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
1906 case NL80211_IFTYPE_AP
:
1907 case NL80211_IFTYPE_ADHOC
:
1908 iwl_mvm_bss_info_changed_ap_ibss(mvm
, vif
, bss_conf
, changes
);
1911 /* shouldn't happen */
1915 mutex_unlock(&mvm
->mutex
);
1916 iwl_mvm_unref(mvm
, IWL_MVM_REF_BSS_CHANGED
);
1919 static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm
*mvm
,
1920 enum iwl_scan_status scan_type
)
1923 bool wait_for_handlers
= false;
1925 mutex_lock(&mvm
->mutex
);
1927 if (mvm
->scan_status
!= scan_type
) {
1929 /* make sure there are no pending notifications */
1930 wait_for_handlers
= true;
1934 switch (scan_type
) {
1935 case IWL_MVM_SCAN_SCHED
:
1936 ret
= iwl_mvm_scan_offload_stop(mvm
, true);
1938 case IWL_MVM_SCAN_OS
:
1939 ret
= iwl_mvm_cancel_scan(mvm
);
1941 case IWL_MVM_SCAN_NONE
:
1950 wait_for_handlers
= true;
1952 mutex_unlock(&mvm
->mutex
);
1954 /* make sure we consume the completion notification */
1955 if (wait_for_handlers
)
1956 iwl_mvm_wait_for_async_handlers(mvm
);
1960 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
1961 struct ieee80211_vif
*vif
,
1962 struct ieee80211_scan_request
*hw_req
)
1964 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1965 struct cfg80211_scan_request
*req
= &hw_req
->req
;
1968 if (req
->n_channels
== 0 ||
1969 req
->n_channels
> mvm
->fw
->ucode_capa
.n_scan_channels
)
1972 if (!(mvm
->fw
->ucode_capa
.capa
[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN
)) {
1973 ret
= iwl_mvm_cancel_scan_wait_notif(mvm
, IWL_MVM_SCAN_SCHED
);
1978 mutex_lock(&mvm
->mutex
);
1980 if (mvm
->scan_status
!= IWL_MVM_SCAN_NONE
) {
1985 iwl_mvm_ref(mvm
, IWL_MVM_REF_SCAN
);
1987 if (mvm
->fw
->ucode_capa
.capa
[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN
)
1988 ret
= iwl_mvm_scan_umac(mvm
, vif
, hw_req
);
1989 else if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
)
1990 ret
= iwl_mvm_unified_scan_lmac(mvm
, vif
, hw_req
);
1992 ret
= iwl_mvm_scan_request(mvm
, vif
, req
);
1995 iwl_mvm_unref(mvm
, IWL_MVM_REF_SCAN
);
1997 mutex_unlock(&mvm
->mutex
);
2001 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
2002 struct ieee80211_vif
*vif
)
2004 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2006 mutex_lock(&mvm
->mutex
);
2008 iwl_mvm_cancel_scan(mvm
);
2010 mutex_unlock(&mvm
->mutex
);
2014 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
2015 struct ieee80211_sta
*sta
, u16 tids
,
2017 enum ieee80211_frame_release_type reason
,
2020 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2022 /* Called when we need to transmit (a) frame(s) from mac80211 */
2024 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2025 tids
, more_data
, false);
2029 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw
*hw
,
2030 struct ieee80211_sta
*sta
, u16 tids
,
2032 enum ieee80211_frame_release_type reason
,
2035 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2037 /* Called when we need to transmit (a) frame(s) from agg queue */
2039 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2040 tids
, more_data
, true);
2043 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
2044 struct ieee80211_vif
*vif
,
2045 enum sta_notify_cmd cmd
,
2046 struct ieee80211_sta
*sta
)
2048 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2049 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2053 case STA_NOTIFY_SLEEP
:
2054 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
2055 ieee80211_sta_block_awake(hw
, sta
, true);
2056 spin_lock_bh(&mvmsta
->lock
);
2057 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
2058 struct iwl_mvm_tid_data
*tid_data
;
2060 tid_data
= &mvmsta
->tid_data
[tid
];
2061 if (tid_data
->state
!= IWL_AGG_ON
&&
2062 tid_data
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
2064 if (iwl_mvm_tid_queued(tid_data
) == 0)
2066 ieee80211_sta_set_buffered(sta
, tid
, true);
2068 spin_unlock_bh(&mvmsta
->lock
);
2070 * The fw updates the STA to be asleep. Tx packets on the Tx
2071 * queues to this station will not be transmitted. The fw will
2072 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2075 case STA_NOTIFY_AWAKE
:
2076 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
))
2078 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
2085 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw
*hw
,
2086 struct ieee80211_vif
*vif
,
2087 struct ieee80211_sta
*sta
)
2089 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2090 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
2093 * This is called before mac80211 does RCU synchronisation,
2094 * so here we already invalidate our internal RCU-protected
2095 * station pointer. The rest of the code will thus no longer
2096 * be able to find the station this way, and we don't rely
2097 * on further RCU synchronisation after the sta_state()
2098 * callback deleted the station.
2100 mutex_lock(&mvm
->mutex
);
2101 if (sta
== rcu_access_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
]))
2102 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
],
2104 mutex_unlock(&mvm
->mutex
);
2107 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
2108 struct ieee80211_vif
*vif
,
2109 struct ieee80211_sta
*sta
,
2110 enum ieee80211_sta_state old_state
,
2111 enum ieee80211_sta_state new_state
)
2113 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2114 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2117 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
2118 sta
->addr
, old_state
, new_state
);
2120 /* this would be a mac80211 bug ... but don't crash */
2121 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
2124 /* if a STA is being removed, reuse its ID */
2125 flush_work(&mvm
->sta_drained_wk
);
2127 mutex_lock(&mvm
->mutex
);
2128 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2129 new_state
== IEEE80211_STA_NONE
) {
2131 * Firmware bug - it'll crash if the beacon interval is less
2132 * than 16. We can't avoid connecting at all, so refuse the
2133 * station state change, this will cause mac80211 to abandon
2134 * attempts to connect to this AP, and eventually wpa_s will
2135 * blacklist the AP...
2137 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2138 vif
->bss_conf
.beacon_int
< 16) {
2140 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2141 sta
->addr
, vif
->bss_conf
.beacon_int
);
2148 iwl_mvm_tdls_sta_count(mvm
, NULL
) ==
2149 IWL_MVM_TDLS_STA_COUNT
||
2150 iwl_mvm_phy_ctx_count(mvm
) > 1)) {
2151 IWL_DEBUG_MAC80211(mvm
, "refusing TDLS sta\n");
2156 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
2157 if (sta
->tdls
&& ret
== 0)
2158 iwl_mvm_recalc_tdls_state(mvm
, vif
, true);
2159 } else if (old_state
== IEEE80211_STA_NONE
&&
2160 new_state
== IEEE80211_STA_AUTH
) {
2162 * EBS may be disabled due to previous failures reported by FW.
2163 * Reset EBS status here assuming environment has been changed.
2165 mvm
->last_ebs_successful
= true;
2167 } else if (old_state
== IEEE80211_STA_AUTH
&&
2168 new_state
== IEEE80211_STA_ASSOC
) {
2169 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
2171 iwl_mvm_rs_rate_init(mvm
, sta
,
2172 mvmvif
->phy_ctxt
->channel
->band
,
2174 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2175 new_state
== IEEE80211_STA_AUTHORIZED
) {
2177 /* we don't support TDLS during DCM */
2178 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2179 iwl_mvm_teardown_tdls_peers(mvm
);
2181 /* enable beacon filtering */
2182 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
2184 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
2185 new_state
== IEEE80211_STA_ASSOC
) {
2186 /* disable beacon filtering */
2187 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
, 0));
2189 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2190 new_state
== IEEE80211_STA_AUTH
) {
2192 } else if (old_state
== IEEE80211_STA_AUTH
&&
2193 new_state
== IEEE80211_STA_NONE
) {
2195 } else if (old_state
== IEEE80211_STA_NONE
&&
2196 new_state
== IEEE80211_STA_NOTEXIST
) {
2197 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
2199 iwl_mvm_recalc_tdls_state(mvm
, vif
, false);
2204 mutex_unlock(&mvm
->mutex
);
2206 if (sta
->tdls
&& ret
== 0) {
2207 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2208 new_state
== IEEE80211_STA_NONE
)
2209 ieee80211_reserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2210 else if (old_state
== IEEE80211_STA_NONE
&&
2211 new_state
== IEEE80211_STA_NOTEXIST
)
2212 ieee80211_unreserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2218 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
2220 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2222 mvm
->rts_threshold
= value
;
2227 static void iwl_mvm_sta_rc_update(struct ieee80211_hw
*hw
,
2228 struct ieee80211_vif
*vif
,
2229 struct ieee80211_sta
*sta
, u32 changed
)
2231 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2233 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2234 changed
& IEEE80211_RC_NSS_CHANGED
)
2235 iwl_mvm_sf_update(mvm
, vif
, false);
2238 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
2239 struct ieee80211_vif
*vif
, u16 ac
,
2240 const struct ieee80211_tx_queue_params
*params
)
2242 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2243 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2245 mvmvif
->queue_params
[ac
] = *params
;
2248 * No need to update right away, we'll get BSS_CHANGED_QOS
2249 * The exception is P2P_DEVICE interface which needs immediate update.
2251 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
2254 mutex_lock(&mvm
->mutex
);
2255 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2256 mutex_unlock(&mvm
->mutex
);
2262 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
2263 struct ieee80211_vif
*vif
)
2265 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2266 u32 duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
,
2267 200 + vif
->bss_conf
.beacon_int
);
2268 u32 min_duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
,
2269 100 + vif
->bss_conf
.beacon_int
);
2271 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
2275 * iwl_mvm_protect_session() reads directly from the device
2276 * (the system time), so make sure it is available.
2278 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PREPARE_TX
))
2281 mutex_lock(&mvm
->mutex
);
2282 /* Try really hard to protect the session and hear a beacon */
2283 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
, 500, false);
2284 mutex_unlock(&mvm
->mutex
);
2286 iwl_mvm_unref(mvm
, IWL_MVM_REF_PREPARE_TX
);
2289 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw
*hw
,
2290 struct ieee80211_vif
*vif
,
2291 struct cfg80211_sched_scan_request
*req
,
2292 struct ieee80211_scan_ies
*ies
)
2294 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2297 if (!(mvm
->fw
->ucode_capa
.capa
[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN
)) {
2298 ret
= iwl_mvm_cancel_scan_wait_notif(mvm
, IWL_MVM_SCAN_OS
);
2303 mutex_lock(&mvm
->mutex
);
2305 /* Newest FW fixes sched scan while connected on another interface */
2306 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
) {
2307 if (!vif
->bss_conf
.idle
) {
2311 } else if (!iwl_mvm_is_idle(mvm
)) {
2316 if (mvm
->scan_status
!= IWL_MVM_SCAN_NONE
) {
2321 ret
= iwl_mvm_scan_offload_start(mvm
, vif
, req
, ies
);
2323 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
2326 mutex_unlock(&mvm
->mutex
);
2330 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw
*hw
,
2331 struct ieee80211_vif
*vif
)
2333 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2336 mutex_lock(&mvm
->mutex
);
2337 ret
= iwl_mvm_scan_offload_stop(mvm
, false);
2338 mutex_unlock(&mvm
->mutex
);
2339 iwl_mvm_wait_for_async_handlers(mvm
);
2345 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
2346 enum set_key_cmd cmd
,
2347 struct ieee80211_vif
*vif
,
2348 struct ieee80211_sta
*sta
,
2349 struct ieee80211_key_conf
*key
)
2351 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2354 if (iwlwifi_mod_params
.sw_crypto
) {
2355 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
2359 switch (key
->cipher
) {
2360 case WLAN_CIPHER_SUITE_TKIP
:
2361 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
2363 case WLAN_CIPHER_SUITE_CCMP
:
2364 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
2366 case WLAN_CIPHER_SUITE_AES_CMAC
:
2367 WARN_ON_ONCE(!(hw
->flags
& IEEE80211_HW_MFP_CAPABLE
));
2369 case WLAN_CIPHER_SUITE_WEP40
:
2370 case WLAN_CIPHER_SUITE_WEP104
:
2371 /* For non-client mode, only use WEP keys for TX as we probably
2372 * don't have a station yet anyway and would then have to keep
2373 * track of the keys, linking them to each of the clients/peers
2374 * as they appear. For now, don't do that, for performance WEP
2375 * offload doesn't really matter much, but we need it for some
2376 * other offload features in client mode.
2378 if (vif
->type
!= NL80211_IFTYPE_STATION
)
2382 /* currently FW supports only one optional cipher scheme */
2383 if (hw
->n_cipher_schemes
&&
2384 hw
->cipher_schemes
->cipher
== key
->cipher
)
2385 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2390 mutex_lock(&mvm
->mutex
);
2394 if ((vif
->type
== NL80211_IFTYPE_ADHOC
||
2395 vif
->type
== NL80211_IFTYPE_AP
) && !sta
) {
2397 * GTK on AP interface is a TX-only key, return 0;
2398 * on IBSS they're per-station and because we're lazy
2399 * we don't support them for RX, so do the same.
2402 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2406 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
2407 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, false);
2409 IWL_WARN(mvm
, "set key failed\n");
2411 * can't add key for RX, but we don't need it
2412 * in the device for TX so still return 0
2414 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2420 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2425 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
2426 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
2432 mutex_unlock(&mvm
->mutex
);
2436 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2437 struct ieee80211_vif
*vif
,
2438 struct ieee80211_key_conf
*keyconf
,
2439 struct ieee80211_sta
*sta
,
2440 u32 iv32
, u16
*phase1key
)
2442 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2444 if (keyconf
->hw_key_idx
== STA_KEY_IDX_INVALID
)
2447 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
2451 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data
*notif_wait
,
2452 struct iwl_rx_packet
*pkt
, void *data
)
2454 struct iwl_mvm
*mvm
=
2455 container_of(notif_wait
, struct iwl_mvm
, notif_wait
);
2456 struct iwl_hs20_roc_res
*resp
;
2457 int resp_len
= iwl_rx_packet_payload_len(pkt
);
2458 struct iwl_mvm_time_event_data
*te_data
= data
;
2460 if (WARN_ON(pkt
->hdr
.cmd
!= HOT_SPOT_CMD
))
2463 if (WARN_ON_ONCE(resp_len
!= sizeof(*resp
))) {
2464 IWL_ERR(mvm
, "Invalid HOT_SPOT_CMD response\n");
2468 resp
= (void *)pkt
->data
;
2471 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2472 resp
->status
, resp
->event_unique_id
);
2474 te_data
->uid
= le32_to_cpu(resp
->event_unique_id
);
2475 IWL_DEBUG_TE(mvm
, "TIME_EVENT_CMD response - UID = 0x%x\n",
2478 spin_lock_bh(&mvm
->time_event_lock
);
2479 list_add_tail(&te_data
->list
, &mvm
->aux_roc_te_list
);
2480 spin_unlock_bh(&mvm
->time_event_lock
);
2485 #define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2486 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm
*mvm
,
2487 struct ieee80211_channel
*channel
,
2488 struct ieee80211_vif
*vif
,
2491 int res
, time_reg
= DEVICE_SYSTEM_TIME_REG
;
2492 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2493 struct iwl_mvm_time_event_data
*te_data
= &mvmvif
->hs_time_event_data
;
2494 static const u8 time_event_response
[] = { HOT_SPOT_CMD
};
2495 struct iwl_notification_wait wait_time_event
;
2496 struct iwl_hs20_roc_req aux_roc_req
= {
2497 .action
= cpu_to_le32(FW_CTXT_ACTION_ADD
),
2499 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX
, 0)),
2500 .sta_id_and_color
= cpu_to_le32(mvm
->aux_sta
.sta_id
),
2501 /* Set the channel info data */
2502 .channel_info
.band
= (channel
->band
== IEEE80211_BAND_2GHZ
) ?
2503 PHY_BAND_24
: PHY_BAND_5
,
2504 .channel_info
.channel
= channel
->hw_value
,
2505 .channel_info
.width
= PHY_VHT_CHANNEL_MODE20
,
2506 /* Set the time and duration */
2507 .apply_time
= cpu_to_le32(iwl_read_prph(mvm
->trans
, time_reg
)),
2508 .apply_time_max_delay
=
2509 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL
)),
2510 .duration
= cpu_to_le32(MSEC_TO_TU(duration
)),
2513 /* Set the node address */
2514 memcpy(aux_roc_req
.node_addr
, vif
->addr
, ETH_ALEN
);
2516 lockdep_assert_held(&mvm
->mutex
);
2518 spin_lock_bh(&mvm
->time_event_lock
);
2520 if (WARN_ON(te_data
->id
== HOT_SPOT_CMD
)) {
2521 spin_unlock_bh(&mvm
->time_event_lock
);
2526 te_data
->duration
= duration
;
2527 te_data
->id
= HOT_SPOT_CMD
;
2529 spin_unlock_bh(&mvm
->time_event_lock
);
2532 * Use a notification wait, which really just processes the
2533 * command response and doesn't wait for anything, in order
2534 * to be able to process the response and get the UID inside
2535 * the RX path. Using CMD_WANT_SKB doesn't work because it
2536 * stores the buffer and then wakes up this thread, by which
2537 * time another notification (that the time event started)
2538 * might already be processed unsuccessfully.
2540 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_time_event
,
2541 time_event_response
,
2542 ARRAY_SIZE(time_event_response
),
2543 iwl_mvm_rx_aux_roc
, te_data
);
2545 res
= iwl_mvm_send_cmd_pdu(mvm
, HOT_SPOT_CMD
, 0, sizeof(aux_roc_req
),
2549 IWL_ERR(mvm
, "Couldn't send HOT_SPOT_CMD: %d\n", res
);
2550 iwl_remove_notification(&mvm
->notif_wait
, &wait_time_event
);
2554 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2555 res
= iwl_wait_notification(&mvm
->notif_wait
, &wait_time_event
, 1);
2556 /* should never fail */
2561 spin_lock_bh(&mvm
->time_event_lock
);
2562 iwl_mvm_te_clear_data(mvm
, te_data
);
2563 spin_unlock_bh(&mvm
->time_event_lock
);
2569 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
2570 struct ieee80211_vif
*vif
,
2571 struct ieee80211_channel
*channel
,
2573 enum ieee80211_roc_type type
)
2575 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2576 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2577 struct cfg80211_chan_def chandef
;
2578 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2581 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
2584 mutex_lock(&mvm
->mutex
);
2586 switch (vif
->type
) {
2587 case NL80211_IFTYPE_STATION
:
2588 if (mvm
->fw
->ucode_capa
.capa
[0] &
2589 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT
) {
2590 /* Use aux roc framework (HS20) */
2591 ret
= iwl_mvm_send_aux_roc_cmd(mvm
, channel
,
2595 IWL_ERR(mvm
, "hotspot not supported\n");
2598 case NL80211_IFTYPE_P2P_DEVICE
:
2602 IWL_ERR(mvm
, "vif isn't P2P_DEVICE: %d\n", vif
->type
);
2607 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
2608 phy_ctxt
= &mvm
->phy_ctxts
[i
];
2609 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
2612 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
2614 * Unbind the P2P_DEVICE from the current PHY context,
2615 * and if the PHY context is not used remove it.
2617 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2618 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2621 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2623 /* Bind the P2P_DEVICE to the current PHY Context */
2624 mvmvif
->phy_ctxt
= phy_ctxt
;
2626 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2627 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2630 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2631 goto schedule_time_event
;
2635 /* Need to update the PHY context only if the ROC channel changed */
2636 if (channel
== mvmvif
->phy_ctxt
->channel
)
2637 goto schedule_time_event
;
2639 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
2642 * Change the PHY context configuration as it is currently referenced
2643 * only by the P2P Device MAC
2645 if (mvmvif
->phy_ctxt
->ref
== 1) {
2646 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
2652 * The PHY context is shared with other MACs. Need to remove the
2653 * P2P Device from the binding, allocate an new PHY context and
2654 * create a new binding
2656 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2662 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
2665 IWL_ERR(mvm
, "Failed to change PHY context\n");
2669 /* Unbind the P2P_DEVICE from the current PHY context */
2670 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2671 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2674 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2676 /* Bind the P2P_DEVICE to the new allocated PHY context */
2677 mvmvif
->phy_ctxt
= phy_ctxt
;
2679 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2680 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2683 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2686 schedule_time_event
:
2687 /* Schedule the time events */
2688 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
2691 mutex_unlock(&mvm
->mutex
);
2692 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2696 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
2698 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2700 IWL_DEBUG_MAC80211(mvm
, "enter\n");
2702 mutex_lock(&mvm
->mutex
);
2703 iwl_mvm_stop_roc(mvm
);
2704 mutex_unlock(&mvm
->mutex
);
2706 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2710 static int __iwl_mvm_add_chanctx(struct iwl_mvm
*mvm
,
2711 struct ieee80211_chanctx_conf
*ctx
)
2713 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2714 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2717 lockdep_assert_held(&mvm
->mutex
);
2719 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
2721 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2727 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2728 ctx
->rx_chains_static
,
2729 ctx
->rx_chains_dynamic
);
2731 IWL_ERR(mvm
, "Failed to add PHY context\n");
2735 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
2736 *phy_ctxt_id
= phy_ctxt
->id
;
2741 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
2742 struct ieee80211_chanctx_conf
*ctx
)
2744 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2747 mutex_lock(&mvm
->mutex
);
2748 ret
= __iwl_mvm_add_chanctx(mvm
, ctx
);
2749 mutex_unlock(&mvm
->mutex
);
2754 static void __iwl_mvm_remove_chanctx(struct iwl_mvm
*mvm
,
2755 struct ieee80211_chanctx_conf
*ctx
)
2757 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2758 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2760 lockdep_assert_held(&mvm
->mutex
);
2762 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
2765 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
2766 struct ieee80211_chanctx_conf
*ctx
)
2768 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2770 mutex_lock(&mvm
->mutex
);
2771 __iwl_mvm_remove_chanctx(mvm
, ctx
);
2772 mutex_unlock(&mvm
->mutex
);
2775 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
2776 struct ieee80211_chanctx_conf
*ctx
,
2779 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2780 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2781 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2783 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
2784 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
2785 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
2786 IEEE80211_CHANCTX_CHANGE_RADAR
|
2787 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH
)),
2788 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2789 phy_ctxt
->ref
, changed
))
2792 mutex_lock(&mvm
->mutex
);
2793 iwl_mvm_bt_coex_vif_change(mvm
);
2794 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2795 ctx
->rx_chains_static
,
2796 ctx
->rx_chains_dynamic
);
2797 mutex_unlock(&mvm
->mutex
);
2800 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm
*mvm
,
2801 struct ieee80211_vif
*vif
,
2802 struct ieee80211_chanctx_conf
*ctx
,
2803 bool switching_chanctx
)
2805 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2806 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2807 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2810 lockdep_assert_held(&mvm
->mutex
);
2812 mvmvif
->phy_ctxt
= phy_ctxt
;
2814 switch (vif
->type
) {
2815 case NL80211_IFTYPE_AP
:
2816 /* only needed if we're switching chanctx (i.e. during CSA) */
2817 if (switching_chanctx
) {
2818 mvmvif
->ap_ibss_active
= true;
2821 case NL80211_IFTYPE_ADHOC
:
2823 * The AP binding flow is handled as part of the start_ap flow
2824 * (in bss_info_changed), similarly for IBSS.
2828 case NL80211_IFTYPE_STATION
:
2830 case NL80211_IFTYPE_MONITOR
:
2831 /* always disable PS when a monitor interface is active */
2832 mvmvif
->ps_disabled
= true;
2839 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2844 * Power state must be updated before quotas,
2845 * otherwise fw will complain.
2847 iwl_mvm_power_update_mac(mvm
);
2849 /* Setting the quota at this stage is only required for monitor
2850 * interfaces. For the other types, the bss_info changed flow
2851 * will handle quota settings.
2853 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
2854 mvmvif
->monitor_active
= true;
2855 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
2857 goto out_remove_binding
;
2860 /* Handle binding during CSA */
2861 if (vif
->type
== NL80211_IFTYPE_AP
) {
2862 iwl_mvm_update_quotas(mvm
, NULL
);
2863 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2866 if (switching_chanctx
&& vif
->type
== NL80211_IFTYPE_STATION
) {
2867 u32 duration
= 2 * vif
->bss_conf
.beacon_int
;
2869 /* iwl_mvm_protect_session() reads directly from the
2870 * device (the system time), so make sure it is
2873 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PROTECT_CSA
);
2875 goto out_remove_binding
;
2877 /* Protect the session to make sure we hear the first
2878 * beacon on the new channel.
2880 iwl_mvm_protect_session(mvm
, vif
, duration
, duration
,
2881 vif
->bss_conf
.beacon_int
/ 2,
2884 iwl_mvm_unref(mvm
, IWL_MVM_REF_PROTECT_CSA
);
2886 iwl_mvm_update_quotas(mvm
, NULL
);
2892 iwl_mvm_binding_remove_vif(mvm
, vif
);
2893 iwl_mvm_power_update_mac(mvm
);
2896 mvmvif
->phy_ctxt
= NULL
;
2899 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
2900 struct ieee80211_vif
*vif
,
2901 struct ieee80211_chanctx_conf
*ctx
)
2903 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2906 mutex_lock(&mvm
->mutex
);
2907 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vif
, ctx
, false);
2908 mutex_unlock(&mvm
->mutex
);
2913 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm
*mvm
,
2914 struct ieee80211_vif
*vif
,
2915 struct ieee80211_chanctx_conf
*ctx
,
2916 bool switching_chanctx
)
2918 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2919 struct ieee80211_vif
*disabled_vif
= NULL
;
2921 lockdep_assert_held(&mvm
->mutex
);
2923 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
2925 switch (vif
->type
) {
2926 case NL80211_IFTYPE_ADHOC
:
2928 case NL80211_IFTYPE_MONITOR
:
2929 mvmvif
->monitor_active
= false;
2930 mvmvif
->ps_disabled
= false;
2932 case NL80211_IFTYPE_AP
:
2933 /* This part is triggered only during CSA */
2934 if (!switching_chanctx
|| !mvmvif
->ap_ibss_active
)
2937 mvmvif
->csa_countdown
= false;
2939 /* Set CS bit on all the stations */
2940 iwl_mvm_modify_all_sta_disable_tx(mvm
, mvmvif
, true);
2942 /* Save blocked iface, the timeout is set on the next beacon */
2943 rcu_assign_pointer(mvm
->csa_tx_blocked_vif
, vif
);
2945 mvmvif
->ap_ibss_active
= false;
2947 case NL80211_IFTYPE_STATION
:
2948 if (!switching_chanctx
)
2953 iwl_mvm_mac_ctxt_changed(mvm
, vif
, true, NULL
);
2959 iwl_mvm_update_quotas(mvm
, disabled_vif
);
2960 iwl_mvm_binding_remove_vif(mvm
, vif
);
2963 mvmvif
->phy_ctxt
= NULL
;
2964 iwl_mvm_power_update_mac(mvm
);
2967 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
2968 struct ieee80211_vif
*vif
,
2969 struct ieee80211_chanctx_conf
*ctx
)
2971 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2973 mutex_lock(&mvm
->mutex
);
2974 __iwl_mvm_unassign_vif_chanctx(mvm
, vif
, ctx
, false);
2975 mutex_unlock(&mvm
->mutex
);
2979 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm
*mvm
,
2980 struct ieee80211_vif_chanctx_switch
*vifs
)
2984 mutex_lock(&mvm
->mutex
);
2985 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
2986 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].old_ctx
);
2988 ret
= __iwl_mvm_add_chanctx(mvm
, vifs
[0].new_ctx
);
2990 IWL_ERR(mvm
, "failed to add new_ctx during channel switch\n");
2994 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
2998 "failed to assign new_ctx during channel switch\n");
3002 /* we don't support TDLS during DCM - can be caused by channel switch */
3003 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
3004 iwl_mvm_teardown_tdls_peers(mvm
);
3009 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].new_ctx
);
3012 if (__iwl_mvm_add_chanctx(mvm
, vifs
[0].old_ctx
)) {
3013 IWL_ERR(mvm
, "failed to add old_ctx back after failure.\n");
3017 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3019 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3026 /* things keep failing, better restart the hw */
3027 iwl_mvm_nic_restart(mvm
, false);
3030 mutex_unlock(&mvm
->mutex
);
3036 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm
*mvm
,
3037 struct ieee80211_vif_chanctx_switch
*vifs
)
3041 mutex_lock(&mvm
->mutex
);
3042 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
3044 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
3048 "failed to assign new_ctx during channel switch\n");
3055 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3057 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3064 /* things keep failing, better restart the hw */
3065 iwl_mvm_nic_restart(mvm
, false);
3068 mutex_unlock(&mvm
->mutex
);
3073 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw
*hw
,
3074 struct ieee80211_vif_chanctx_switch
*vifs
,
3076 enum ieee80211_chanctx_switch_mode mode
)
3078 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3081 /* we only support a single-vif right now */
3086 case CHANCTX_SWMODE_SWAP_CONTEXTS
:
3087 ret
= iwl_mvm_switch_vif_chanctx_swap(mvm
, vifs
);
3089 case CHANCTX_SWMODE_REASSIGN_VIF
:
3090 ret
= iwl_mvm_switch_vif_chanctx_reassign(mvm
, vifs
);
3100 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
3101 struct ieee80211_sta
*sta
,
3104 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3105 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
3107 if (!mvm_sta
|| !mvm_sta
->vif
) {
3108 IWL_ERR(mvm
, "Station is not associated to a vif\n");
3112 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
3115 #ifdef CONFIG_NL80211_TESTMODE
3116 static const struct nla_policy iwl_mvm_tm_policy
[IWL_MVM_TM_ATTR_MAX
+ 1] = {
3117 [IWL_MVM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
3118 [IWL_MVM_TM_ATTR_NOA_DURATION
] = { .type
= NLA_U32
},
3119 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
] = { .type
= NLA_U32
},
3122 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm
*mvm
,
3123 struct ieee80211_vif
*vif
,
3124 void *data
, int len
)
3126 struct nlattr
*tb
[IWL_MVM_TM_ATTR_MAX
+ 1];
3130 err
= nla_parse(tb
, IWL_MVM_TM_ATTR_MAX
, data
, len
, iwl_mvm_tm_policy
);
3134 if (!tb
[IWL_MVM_TM_ATTR_CMD
])
3137 switch (nla_get_u32(tb
[IWL_MVM_TM_ATTR_CMD
])) {
3138 case IWL_MVM_TM_CMD_SET_NOA
:
3139 if (!vif
|| vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
||
3140 !vif
->bss_conf
.enable_beacon
||
3141 !tb
[IWL_MVM_TM_ATTR_NOA_DURATION
])
3144 noa_duration
= nla_get_u32(tb
[IWL_MVM_TM_ATTR_NOA_DURATION
]);
3145 if (noa_duration
>= vif
->bss_conf
.beacon_int
)
3148 mvm
->noa_duration
= noa_duration
;
3151 return iwl_mvm_update_quotas(mvm
, NULL
);
3152 case IWL_MVM_TM_CMD_SET_BEACON_FILTER
:
3153 /* must be associated client vif - ignore authorized */
3154 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
||
3155 !vif
->bss_conf
.assoc
|| !vif
->bss_conf
.dtim_period
||
3156 !tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
])
3159 if (nla_get_u32(tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
]))
3160 return iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
3161 return iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3167 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw
*hw
,
3168 struct ieee80211_vif
*vif
,
3169 void *data
, int len
)
3171 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3174 mutex_lock(&mvm
->mutex
);
3175 err
= __iwl_mvm_mac_testmode_cmd(mvm
, vif
, data
, len
);
3176 mutex_unlock(&mvm
->mutex
);
3182 static void iwl_mvm_channel_switch(struct ieee80211_hw
*hw
,
3183 struct ieee80211_vif
*vif
,
3184 struct ieee80211_channel_switch
*chsw
)
3186 /* By implementing this operation, we prevent mac80211 from
3187 * starting its own channel switch timer, so that we can call
3188 * ieee80211_chswitch_done() ourselves at the right time
3189 * (which is when the absence time event starts).
3192 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw
),
3193 "dummy channel switch op\n");
3196 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw
*hw
,
3197 struct ieee80211_vif
*vif
,
3198 struct ieee80211_channel_switch
*chsw
)
3200 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3201 struct ieee80211_vif
*csa_vif
;
3202 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3206 mutex_lock(&mvm
->mutex
);
3208 IWL_DEBUG_MAC80211(mvm
, "pre CSA to freq %d\n",
3209 chsw
->chandef
.center_freq1
);
3211 switch (vif
->type
) {
3212 case NL80211_IFTYPE_AP
:
3214 rcu_dereference_protected(mvm
->csa_vif
,
3215 lockdep_is_held(&mvm
->mutex
));
3216 if (WARN_ONCE(csa_vif
&& csa_vif
->csa_active
,
3217 "Another CSA is already in progress")) {
3222 rcu_assign_pointer(mvm
->csa_vif
, vif
);
3224 if (WARN_ONCE(mvmvif
->csa_countdown
,
3225 "Previous CSA countdown didn't complete")) {
3231 case NL80211_IFTYPE_STATION
:
3232 /* Schedule the time event to a bit before beacon 1,
3233 * to make sure we're in the new channel when the
3236 apply_time
= chsw
->device_timestamp
+
3237 ((vif
->bss_conf
.beacon_int
* (chsw
->count
- 1) -
3238 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT
) * 1024);
3241 iwl_mvm_csa_client_absent(mvm
, vif
);
3243 iwl_mvm_schedule_csa_period(mvm
, vif
, vif
->bss_conf
.beacon_int
,
3245 if (mvmvif
->bf_data
.bf_enabled
) {
3246 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3256 mvmvif
->ps_disabled
= true;
3258 ret
= iwl_mvm_power_update_ps(mvm
);
3262 /* we won't be on this channel any longer */
3263 iwl_mvm_teardown_tdls_peers(mvm
);
3266 mutex_unlock(&mvm
->mutex
);
3271 static int iwl_mvm_post_channel_switch(struct ieee80211_hw
*hw
,
3272 struct ieee80211_vif
*vif
)
3274 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3275 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3278 mutex_lock(&mvm
->mutex
);
3280 if (vif
->type
== NL80211_IFTYPE_STATION
) {
3281 struct iwl_mvm_sta
*mvmsta
;
3283 mvmsta
= iwl_mvm_sta_from_staid_protected(mvm
,
3286 if (WARN_ON(!mvmsta
)) {
3291 iwl_mvm_sta_modify_disable_tx(mvm
, mvmsta
, false);
3293 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
3295 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
3299 iwl_mvm_stop_session_protection(mvm
, vif
);
3302 mvmvif
->ps_disabled
= false;
3304 ret
= iwl_mvm_power_update_ps(mvm
);
3307 mutex_unlock(&mvm
->mutex
);
3312 static void iwl_mvm_mac_flush(struct ieee80211_hw
*hw
,
3313 struct ieee80211_vif
*vif
, u32 queues
, bool drop
)
3315 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3316 struct iwl_mvm_vif
*mvmvif
;
3317 struct iwl_mvm_sta
*mvmsta
;
3318 struct ieee80211_sta
*sta
;
3322 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
)
3325 mutex_lock(&mvm
->mutex
);
3326 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3328 /* flush the AP-station and all TDLS peers */
3329 for (i
= 0; i
< IWL_MVM_STATION_COUNT
; i
++) {
3330 sta
= rcu_dereference_protected(mvm
->fw_id_to_mac_id
[i
],
3331 lockdep_is_held(&mvm
->mutex
));
3332 if (IS_ERR_OR_NULL(sta
))
3335 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
3336 if (mvmsta
->vif
!= vif
)
3339 /* make sure only TDLS peers or the AP are flushed */
3340 WARN_ON(i
!= mvmvif
->ap_sta_id
&& !sta
->tdls
);
3342 msk
|= mvmsta
->tfd_queue_msk
;
3346 if (iwl_mvm_flush_tx_path(mvm
, msk
, true))
3347 IWL_ERR(mvm
, "flush request fail\n");
3348 mutex_unlock(&mvm
->mutex
);
3350 mutex_unlock(&mvm
->mutex
);
3352 /* this can take a while, and we may need/want other operations
3353 * to succeed while doing this, so do it without the mutex held
3355 iwl_trans_wait_tx_queue_empty(mvm
->trans
, msk
);
3359 const struct ieee80211_ops iwl_mvm_hw_ops
= {
3360 .tx
= iwl_mvm_mac_tx
,
3361 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
3362 .start
= iwl_mvm_mac_start
,
3363 .reconfig_complete
= iwl_mvm_mac_reconfig_complete
,
3364 .stop
= iwl_mvm_mac_stop
,
3365 .add_interface
= iwl_mvm_mac_add_interface
,
3366 .remove_interface
= iwl_mvm_mac_remove_interface
,
3367 .config
= iwl_mvm_mac_config
,
3368 .prepare_multicast
= iwl_mvm_prepare_multicast
,
3369 .configure_filter
= iwl_mvm_configure_filter
,
3370 .bss_info_changed
= iwl_mvm_bss_info_changed
,
3371 .hw_scan
= iwl_mvm_mac_hw_scan
,
3372 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
3373 .sta_pre_rcu_remove
= iwl_mvm_sta_pre_rcu_remove
,
3374 .sta_state
= iwl_mvm_mac_sta_state
,
3375 .sta_notify
= iwl_mvm_mac_sta_notify
,
3376 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
3377 .release_buffered_frames
= iwl_mvm_mac_release_buffered_frames
,
3378 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
3379 .sta_rc_update
= iwl_mvm_sta_rc_update
,
3380 .conf_tx
= iwl_mvm_mac_conf_tx
,
3381 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
3382 .mgd_protect_tdls_discover
= iwl_mvm_mac_mgd_protect_tdls_discover
,
3383 .flush
= iwl_mvm_mac_flush
,
3384 .sched_scan_start
= iwl_mvm_mac_sched_scan_start
,
3385 .sched_scan_stop
= iwl_mvm_mac_sched_scan_stop
,
3386 .set_key
= iwl_mvm_mac_set_key
,
3387 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
3388 .remain_on_channel
= iwl_mvm_roc
,
3389 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
3390 .add_chanctx
= iwl_mvm_add_chanctx
,
3391 .remove_chanctx
= iwl_mvm_remove_chanctx
,
3392 .change_chanctx
= iwl_mvm_change_chanctx
,
3393 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
3394 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
3395 .switch_vif_chanctx
= iwl_mvm_switch_vif_chanctx
,
3397 .start_ap
= iwl_mvm_start_ap_ibss
,
3398 .stop_ap
= iwl_mvm_stop_ap_ibss
,
3399 .join_ibss
= iwl_mvm_start_ap_ibss
,
3400 .leave_ibss
= iwl_mvm_stop_ap_ibss
,
3402 .set_tim
= iwl_mvm_set_tim
,
3404 .channel_switch
= iwl_mvm_channel_switch
,
3405 .pre_channel_switch
= iwl_mvm_pre_channel_switch
,
3406 .post_channel_switch
= iwl_mvm_post_channel_switch
,
3408 .tdls_channel_switch
= iwl_mvm_tdls_channel_switch
,
3409 .tdls_cancel_channel_switch
= iwl_mvm_tdls_cancel_channel_switch
,
3410 .tdls_recv_channel_switch
= iwl_mvm_tdls_recv_channel_switch
,
3412 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd
)
3414 #ifdef CONFIG_PM_SLEEP
3416 .suspend
= iwl_mvm_suspend
,
3417 .resume
= iwl_mvm_resume
,
3418 .set_wakeup
= iwl_mvm_set_wakeup
,
3419 .set_rekey_data
= iwl_mvm_set_rekey_data
,
3420 #if IS_ENABLED(CONFIG_IPV6)
3421 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
3423 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,