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 hw
->rate_control_algorithm
= "iwl-mvm-rs";
330 * Enable 11w if advertised by firmware and software crypto
331 * is not enabled (as the firmware will interpret some mgmt
332 * packets, so enabling it with software crypto isn't safe)
334 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_MFP
&&
335 !iwlwifi_mod_params
.sw_crypto
)
336 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
338 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT
&&
339 IWL_UCODE_API(mvm
->fw
->ucode_ver
) >= 9 &&
340 !iwlwifi_mod_params
.uapsd_disable
) {
341 hw
->flags
|= IEEE80211_HW_SUPPORTS_UAPSD
;
342 hw
->uapsd_queues
= IWL_MVM_UAPSD_QUEUES
;
343 hw
->uapsd_max_sp_len
= IWL_UAPSD_MAX_SP
;
346 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
||
347 mvm
->fw
->ucode_capa
.capa
[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN
) {
348 hw
->flags
|= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS
;
349 hw
->wiphy
->features
|=
350 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR
|
351 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR
;
354 hw
->sta_data_size
= sizeof(struct iwl_mvm_sta
);
355 hw
->vif_data_size
= sizeof(struct iwl_mvm_vif
);
356 hw
->chanctx_data_size
= sizeof(u16
);
358 hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
359 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
360 BIT(NL80211_IFTYPE_AP
) |
361 BIT(NL80211_IFTYPE_P2P_GO
) |
362 BIT(NL80211_IFTYPE_P2P_DEVICE
) |
363 BIT(NL80211_IFTYPE_ADHOC
);
365 hw
->wiphy
->flags
|= WIPHY_FLAG_IBSS_RSN
;
366 hw
->wiphy
->regulatory_flags
|= REGULATORY_CUSTOM_REG
|
367 REGULATORY_DISABLE_BEACON_HINTS
;
369 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_GO_UAPSD
)
370 hw
->wiphy
->flags
|= WIPHY_FLAG_AP_UAPSD
;
372 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_CSA_FLOW
)
373 hw
->wiphy
->flags
|= WIPHY_FLAG_HAS_CHANNEL_SWITCH
;
375 hw
->wiphy
->iface_combinations
= iwl_mvm_iface_combinations
;
376 hw
->wiphy
->n_iface_combinations
=
377 ARRAY_SIZE(iwl_mvm_iface_combinations
);
379 hw
->wiphy
->max_remain_on_channel_duration
= 10000;
380 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
382 /* Extract MAC address */
383 memcpy(mvm
->addresses
[0].addr
, mvm
->nvm_data
->hw_addr
, ETH_ALEN
);
384 hw
->wiphy
->addresses
= mvm
->addresses
;
385 hw
->wiphy
->n_addresses
= 1;
387 /* Extract additional MAC addresses if available */
388 num_mac
= (mvm
->nvm_data
->n_hw_addrs
> 1) ?
389 min(IWL_MVM_MAX_ADDRESSES
, mvm
->nvm_data
->n_hw_addrs
) : 1;
391 for (i
= 1; i
< num_mac
; i
++) {
392 memcpy(mvm
->addresses
[i
].addr
, mvm
->addresses
[i
-1].addr
,
394 mvm
->addresses
[i
].addr
[5]++;
395 hw
->wiphy
->n_addresses
++;
398 iwl_mvm_reset_phy_ctxts(mvm
);
400 hw
->wiphy
->max_scan_ie_len
= iwl_mvm_max_scan_ie_len(mvm
, false);
402 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
404 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
405 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
406 &mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
];
407 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
408 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
409 &mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
];
411 hw
->wiphy
->hw_version
= mvm
->trans
->hw_id
;
413 if (iwlmvm_mod_params
.power_scheme
!= IWL_POWER_SCHEME_CAM
)
414 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
416 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
418 if (IWL_UCODE_API(mvm
->fw
->ucode_ver
) >= 10) {
419 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_SCHED_SCAN
;
420 hw
->wiphy
->max_sched_scan_ssids
= PROBE_OPTION_MAX
;
421 hw
->wiphy
->max_match_sets
= IWL_SCAN_MAX_PROFILES
;
422 /* we create the 802.11 header and zero length SSID IE. */
423 hw
->wiphy
->max_sched_scan_ie_len
=
424 SCAN_OFFLOAD_PROBE_REQ_SIZE
- 24 - 2;
427 hw
->wiphy
->features
|= NL80211_FEATURE_P2P_GO_CTWIN
|
428 NL80211_FEATURE_LOW_PRIORITY_SCAN
|
429 NL80211_FEATURE_P2P_GO_OPPPS
|
430 NL80211_FEATURE_DYNAMIC_SMPS
|
431 NL80211_FEATURE_STATIC_SMPS
|
432 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION
;
434 if (mvm
->fw
->ucode_capa
.capa
[0] &
435 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT
)
436 hw
->wiphy
->features
|= NL80211_FEATURE_TX_POWER_INSERTION
;
437 if (mvm
->fw
->ucode_capa
.capa
[0] &
438 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT
)
439 hw
->wiphy
->features
|= NL80211_FEATURE_QUIET
;
441 if (mvm
->fw
->ucode_capa
.capa
[0] &
442 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT
)
443 hw
->wiphy
->features
|=
444 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES
;
446 if (mvm
->fw
->ucode_capa
.capa
[0] &
447 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT
)
448 hw
->wiphy
->features
|= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES
;
450 mvm
->rts_threshold
= IEEE80211_MAX_RTS_THRESHOLD
;
452 /* currently FW API supports only one optional cipher scheme */
453 if (mvm
->fw
->cs
[0].cipher
) {
454 mvm
->hw
->n_cipher_schemes
= 1;
455 mvm
->hw
->cipher_schemes
= &mvm
->fw
->cs
[0];
458 #ifdef CONFIG_PM_SLEEP
459 if (iwl_mvm_is_d0i3_supported(mvm
) &&
460 device_can_wakeup(mvm
->trans
->dev
)) {
461 mvm
->wowlan
.flags
= WIPHY_WOWLAN_ANY
;
462 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
463 } else if (mvm
->fw
->img
[IWL_UCODE_WOWLAN
].sec
[0].len
&&
464 mvm
->trans
->ops
->d3_suspend
&&
465 mvm
->trans
->ops
->d3_resume
&&
466 device_can_wakeup(mvm
->trans
->dev
)) {
467 mvm
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
468 WIPHY_WOWLAN_DISCONNECT
|
469 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
470 WIPHY_WOWLAN_RFKILL_RELEASE
;
471 if (!iwlwifi_mod_params
.sw_crypto
)
472 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
473 WIPHY_WOWLAN_GTK_REKEY_FAILURE
|
474 WIPHY_WOWLAN_4WAY_HANDSHAKE
;
476 mvm
->wowlan
.n_patterns
= IWL_WOWLAN_MAX_PATTERNS
;
477 mvm
->wowlan
.pattern_min_len
= IWL_WOWLAN_MIN_PATTERN_LEN
;
478 mvm
->wowlan
.pattern_max_len
= IWL_WOWLAN_MAX_PATTERN_LEN
;
479 mvm
->wowlan
.tcp
= &iwl_mvm_wowlan_tcp_support
;
480 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
484 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
485 /* assign default bcast filtering configuration */
486 mvm
->bcast_filters
= iwl_mvm_default_bcast_filters
;
489 ret
= iwl_mvm_leds_init(mvm
);
493 if (mvm
->fw
->ucode_capa
.capa
[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT
) {
494 IWL_DEBUG_TDLS(mvm
, "TDLS supported\n");
495 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_TDLS
;
498 if (mvm
->fw
->ucode_capa
.capa
[0] &
499 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH
) {
500 IWL_DEBUG_TDLS(mvm
, "TDLS channel switch supported\n");
501 hw
->wiphy
->features
|= NL80211_FEATURE_TDLS_CHANNEL_SWITCH
;
504 ret
= ieee80211_register_hw(mvm
->hw
);
506 iwl_mvm_leds_exit(mvm
);
511 static bool iwl_mvm_defer_tx(struct iwl_mvm
*mvm
,
512 struct ieee80211_sta
*sta
,
515 struct iwl_mvm_sta
*mvmsta
;
519 * double check the IN_D0I3 flag both before and after
520 * taking the spinlock, in order to prevent taking
521 * the spinlock when not needed.
523 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
)))
526 spin_lock(&mvm
->d0i3_tx_lock
);
528 * testing the flag again ensures the skb dequeue
529 * loop (on d0i3 exit) hasn't run yet.
531 if (!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
))
534 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
535 if (mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
||
536 mvmsta
->sta_id
!= mvm
->d0i3_ap_sta_id
)
539 __skb_queue_tail(&mvm
->d0i3_tx
, skb
);
540 ieee80211_stop_queues(mvm
->hw
);
543 iwl_mvm_ref(mvm
, IWL_MVM_REF_TX
);
544 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX
);
548 spin_unlock(&mvm
->d0i3_tx_lock
);
552 static void iwl_mvm_mac_tx(struct ieee80211_hw
*hw
,
553 struct ieee80211_tx_control
*control
,
556 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
557 struct ieee80211_sta
*sta
= control
->sta
;
558 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
559 struct ieee80211_hdr
*hdr
= (void *)skb
->data
;
561 if (iwl_mvm_is_radio_killed(mvm
)) {
562 IWL_DEBUG_DROP(mvm
, "Dropping - RF/CT KILL\n");
566 if (IEEE80211_SKB_CB(skb
)->hw_queue
== IWL_MVM_OFFCHANNEL_QUEUE
&&
567 !test_bit(IWL_MVM_STATUS_ROC_RUNNING
, &mvm
->status
) &&
568 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING
, &mvm
->status
))
571 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
572 if (unlikely(info
->flags
& IEEE80211_TX_CTL_NO_PS_BUFFER
&&
573 ieee80211_is_mgmt(hdr
->frame_control
) &&
574 !ieee80211_is_deauth(hdr
->frame_control
) &&
575 !ieee80211_is_disassoc(hdr
->frame_control
) &&
576 !ieee80211_is_action(hdr
->frame_control
)))
580 if (iwl_mvm_defer_tx(mvm
, sta
, skb
))
582 if (iwl_mvm_tx_skb(mvm
, skb
, sta
))
587 if (iwl_mvm_tx_skb_non_sta(mvm
, skb
))
591 ieee80211_free_txskb(hw
, skb
);
594 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg
*cfg
)
596 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
)
601 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg
*cfg
)
603 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
)
605 if (iwlwifi_mod_params
.disable_11n
& IWL_ENABLE_HT_TXAGG
)
608 /* enabled by default */
612 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw
*hw
,
613 struct ieee80211_vif
*vif
,
614 enum ieee80211_ampdu_mlme_action action
,
615 struct ieee80211_sta
*sta
, u16 tid
,
616 u16
*ssn
, u8 buf_size
)
618 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
620 bool tx_agg_ref
= false;
622 IWL_DEBUG_HT(mvm
, "A-MPDU action on addr %pM tid %d: action %d\n",
623 sta
->addr
, tid
, action
);
625 if (!(mvm
->nvm_data
->sku_cap_11n_enable
))
628 /* return from D0i3 before starting a new Tx aggregation */
630 case IEEE80211_AMPDU_TX_START
:
631 case IEEE80211_AMPDU_TX_STOP_CONT
:
632 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
633 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
634 case IEEE80211_AMPDU_TX_OPERATIONAL
:
636 * for tx start, wait synchronously until D0i3 exit to
637 * get the correct sequence number for the tid.
638 * additionally, some other ampdu actions use direct
639 * target access, which is not handled automatically
640 * by the trans layer (unlike commands), so wait for
641 * d0i3 exit in these cases as well.
643 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_TX_AGG
);
653 mutex_lock(&mvm
->mutex
);
656 case IEEE80211_AMPDU_RX_START
:
657 if (!iwl_enable_rx_ampdu(mvm
->cfg
)) {
661 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, *ssn
, true);
663 case IEEE80211_AMPDU_RX_STOP
:
664 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, 0, false);
666 case IEEE80211_AMPDU_TX_START
:
667 if (!iwl_enable_tx_ampdu(mvm
->cfg
)) {
671 ret
= iwl_mvm_sta_tx_agg_start(mvm
, vif
, sta
, tid
, ssn
);
673 case IEEE80211_AMPDU_TX_STOP_CONT
:
674 ret
= iwl_mvm_sta_tx_agg_stop(mvm
, vif
, sta
, tid
);
676 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
677 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
678 ret
= iwl_mvm_sta_tx_agg_flush(mvm
, vif
, sta
, tid
);
680 case IEEE80211_AMPDU_TX_OPERATIONAL
:
681 ret
= iwl_mvm_sta_tx_agg_oper(mvm
, vif
, sta
, tid
, buf_size
);
688 mutex_unlock(&mvm
->mutex
);
691 * If the tid is marked as started, we won't use it for offloaded
692 * traffic on the next D0i3 entry. It's safe to unref.
695 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX_AGG
);
700 static void iwl_mvm_cleanup_iterator(void *data
, u8
*mac
,
701 struct ieee80211_vif
*vif
)
703 struct iwl_mvm
*mvm
= data
;
704 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
706 mvmvif
->uploaded
= false;
707 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
709 /* does this make sense at all? */
712 spin_lock_bh(&mvm
->time_event_lock
);
713 iwl_mvm_te_clear_data(mvm
, &mvmvif
->time_event_data
);
714 spin_unlock_bh(&mvm
->time_event_lock
);
716 mvmvif
->phy_ctxt
= NULL
;
717 memset(&mvmvif
->bf_data
, 0, sizeof(mvmvif
->bf_data
));
720 static ssize_t
iwl_mvm_read_coredump(char *buffer
, loff_t offset
, size_t count
,
721 const void *data
, size_t datalen
)
723 const struct iwl_mvm_dump_ptrs
*dump_ptrs
= data
;
725 ssize_t bytes_read_trans
;
727 if (offset
< dump_ptrs
->op_mode_len
) {
728 bytes_read
= min_t(ssize_t
, count
,
729 dump_ptrs
->op_mode_len
- offset
);
730 memcpy(buffer
, (u8
*)dump_ptrs
->op_mode_ptr
+ offset
,
732 offset
+= bytes_read
;
741 if (!dump_ptrs
->trans_ptr
)
744 offset
-= dump_ptrs
->op_mode_len
;
745 bytes_read_trans
= min_t(ssize_t
, count
,
746 dump_ptrs
->trans_ptr
->len
- offset
);
747 memcpy(buffer
+ bytes_read
,
748 (u8
*)dump_ptrs
->trans_ptr
->data
+ offset
,
751 return bytes_read
+ bytes_read_trans
;
754 static void iwl_mvm_free_coredump(const void *data
)
756 const struct iwl_mvm_dump_ptrs
*fw_error_dump
= data
;
758 vfree(fw_error_dump
->op_mode_ptr
);
759 vfree(fw_error_dump
->trans_ptr
);
760 kfree(fw_error_dump
);
763 void iwl_mvm_fw_error_dump(struct iwl_mvm
*mvm
)
765 struct iwl_fw_error_dump_file
*dump_file
;
766 struct iwl_fw_error_dump_data
*dump_data
;
767 struct iwl_fw_error_dump_info
*dump_info
;
768 struct iwl_mvm_dump_ptrs
*fw_error_dump
;
769 const struct fw_img
*img
;
770 u32 sram_len
, sram_ofs
;
771 u32 file_len
, rxf_len
;
775 lockdep_assert_held(&mvm
->mutex
);
777 fw_error_dump
= kzalloc(sizeof(*fw_error_dump
), GFP_KERNEL
);
781 img
= &mvm
->fw
->img
[mvm
->cur_ucode
];
782 sram_ofs
= img
->sec
[IWL_UCODE_SECTION_DATA
].offset
;
783 sram_len
= img
->sec
[IWL_UCODE_SECTION_DATA
].len
;
785 /* reading buffer size */
786 reg_val
= iwl_trans_read_prph(mvm
->trans
, RXF_SIZE_ADDR
);
787 rxf_len
= (reg_val
& RXF_SIZE_BYTE_CNT_MSK
) >> RXF_SIZE_BYTE_CND_POS
;
789 /* the register holds the value divided by 128 */
790 rxf_len
= rxf_len
<< 7;
792 file_len
= sizeof(*dump_file
) +
793 sizeof(*dump_data
) * 3 +
798 dump_file
= vzalloc(file_len
);
800 kfree(fw_error_dump
);
804 fw_error_dump
->op_mode_ptr
= dump_file
;
806 dump_file
->barker
= cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER
);
807 dump_data
= (void *)dump_file
->data
;
809 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO
);
810 dump_data
->len
= cpu_to_le32(sizeof(*dump_info
));
811 dump_info
= (void *) dump_data
->data
;
812 dump_info
->device_family
=
813 mvm
->cfg
->device_family
== IWL_DEVICE_FAMILY_7000
?
814 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7
) :
815 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8
);
816 memcpy(dump_info
->fw_human_readable
, mvm
->fw
->human_readable
,
817 sizeof(dump_info
->fw_human_readable
));
818 strncpy(dump_info
->dev_human_readable
, mvm
->cfg
->name
,
819 sizeof(dump_info
->dev_human_readable
));
820 strncpy(dump_info
->bus_human_readable
, mvm
->dev
->bus
->name
,
821 sizeof(dump_info
->bus_human_readable
));
823 dump_data
= iwl_fw_error_next_data(dump_data
);
824 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_RXF
);
825 dump_data
->len
= cpu_to_le32(rxf_len
);
827 if (iwl_trans_grab_nic_access(mvm
->trans
, false, &flags
)) {
828 u32
*rxf
= (void *)dump_data
->data
;
831 for (i
= 0; i
< (rxf_len
/ sizeof(u32
)); i
++) {
832 iwl_trans_write_prph(mvm
->trans
,
833 RXF_LD_FENCE_OFFSET_ADDR
,
835 rxf
[i
] = iwl_trans_read_prph(mvm
->trans
,
836 RXF_FIFO_RD_FENCE_ADDR
);
838 iwl_trans_release_nic_access(mvm
->trans
, &flags
);
841 dump_data
= iwl_fw_error_next_data(dump_data
);
842 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM
);
843 dump_data
->len
= cpu_to_le32(sram_len
);
844 iwl_trans_read_mem_bytes(mvm
->trans
, sram_ofs
, dump_data
->data
,
847 fw_error_dump
->trans_ptr
= iwl_trans_dump_data(mvm
->trans
);
848 fw_error_dump
->op_mode_len
= file_len
;
849 if (fw_error_dump
->trans_ptr
)
850 file_len
+= fw_error_dump
->trans_ptr
->len
;
851 dump_file
->file_len
= cpu_to_le32(file_len
);
853 dev_coredumpm(mvm
->trans
->dev
, THIS_MODULE
, fw_error_dump
, 0,
854 GFP_KERNEL
, iwl_mvm_read_coredump
, iwl_mvm_free_coredump
);
857 static void iwl_mvm_restart_cleanup(struct iwl_mvm
*mvm
)
859 /* clear the D3 reconfig, we only need it to avoid dumping a
860 * firmware coredump on reconfiguration, we shouldn't do that
861 * on D3->D0 transition
863 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG
, &mvm
->status
))
864 iwl_mvm_fw_error_dump(mvm
);
866 iwl_trans_stop_device(mvm
->trans
);
868 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
869 mvm
->ps_disabled
= false;
870 mvm
->calibrating
= false;
872 /* just in case one was running */
873 ieee80211_remain_on_channel_expired(mvm
->hw
);
875 ieee80211_iterate_active_interfaces_atomic(
876 mvm
->hw
, IEEE80211_IFACE_ITER_RESUME_ALL
,
877 iwl_mvm_cleanup_iterator
, mvm
);
879 mvm
->p2p_device_vif
= NULL
;
880 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
882 iwl_mvm_reset_phy_ctxts(mvm
);
883 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
884 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
885 memset(mvm
->tfd_drained
, 0, sizeof(mvm
->tfd_drained
));
886 memset(&mvm
->last_bt_notif
, 0, sizeof(mvm
->last_bt_notif
));
887 memset(&mvm
->last_bt_notif_old
, 0, sizeof(mvm
->last_bt_notif_old
));
888 memset(&mvm
->last_bt_ci_cmd
, 0, sizeof(mvm
->last_bt_ci_cmd
));
889 memset(&mvm
->last_bt_ci_cmd_old
, 0, sizeof(mvm
->last_bt_ci_cmd_old
));
890 memset(&mvm
->bt_ack_kill_msk
, 0, sizeof(mvm
->bt_ack_kill_msk
));
891 memset(&mvm
->bt_cts_kill_msk
, 0, sizeof(mvm
->bt_cts_kill_msk
));
893 ieee80211_wake_queues(mvm
->hw
);
895 /* cleanup all stale references (scan, roc), but keep the
896 * ucode_down ref until reconfig is complete */
897 iwl_mvm_unref_all_except(mvm
, IWL_MVM_REF_UCODE_DOWN
);
899 /* clear any stale d0i3 state */
900 clear_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
);
903 mvm
->rx_ba_sessions
= 0;
906 int __iwl_mvm_mac_start(struct iwl_mvm
*mvm
)
910 lockdep_assert_held(&mvm
->mutex
);
912 /* Clean up some internal and mac80211 state on restart */
913 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
914 iwl_mvm_restart_cleanup(mvm
);
916 ret
= iwl_mvm_up(mvm
);
918 if (ret
&& test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
919 /* Something went wrong - we need to finish some cleanup
920 * that normally iwl_mvm_mac_restart_complete() below
923 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
924 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
930 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
932 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
935 mutex_lock(&mvm
->mutex
);
936 ret
= __iwl_mvm_mac_start(mvm
);
937 mutex_unlock(&mvm
->mutex
);
942 static void iwl_mvm_restart_complete(struct iwl_mvm
*mvm
)
946 mutex_lock(&mvm
->mutex
);
948 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
949 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
950 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
952 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
955 /* allow transport/FW low power modes */
956 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
959 * If we have TDLS peers, remove them. We don't know the last seqno/PN
960 * of packets the FW sent out, so we must reconnect.
962 iwl_mvm_teardown_tdls_peers(mvm
);
964 mutex_unlock(&mvm
->mutex
);
967 static void iwl_mvm_resume_complete(struct iwl_mvm
*mvm
)
971 if (!iwl_mvm_is_d0i3_supported(mvm
))
974 mutex_lock(&mvm
->d0i3_suspend_mutex
);
975 __clear_bit(D0I3_DEFER_WAKEUP
, &mvm
->d0i3_suspend_flags
);
976 exit_now
= __test_and_clear_bit(D0I3_PENDING_WAKEUP
,
977 &mvm
->d0i3_suspend_flags
);
978 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
981 IWL_DEBUG_RPM(mvm
, "Run deferred d0i3 exit\n");
982 _iwl_mvm_exit_d0i3(mvm
);
987 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw
*hw
,
988 enum ieee80211_reconfig_type reconfig_type
)
990 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
992 switch (reconfig_type
) {
993 case IEEE80211_RECONFIG_TYPE_RESTART
:
994 iwl_mvm_restart_complete(mvm
);
996 case IEEE80211_RECONFIG_TYPE_SUSPEND
:
997 iwl_mvm_resume_complete(mvm
);
1002 void __iwl_mvm_mac_stop(struct iwl_mvm
*mvm
)
1004 lockdep_assert_held(&mvm
->mutex
);
1006 /* disallow low power states when the FW is down */
1007 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1009 /* async_handlers_wk is now blocked */
1012 * The work item could be running or queued if the
1013 * ROC time event stops just as we get here.
1015 cancel_work_sync(&mvm
->roc_done_wk
);
1017 iwl_trans_stop_device(mvm
->trans
);
1019 iwl_mvm_async_handlers_purge(mvm
);
1020 /* async_handlers_list is empty and will stay empty: HW is stopped */
1022 /* the fw is stopped, the aux sta is dead: clean up driver state */
1023 iwl_mvm_del_aux_sta(mvm
);
1025 mvm
->ucode_loaded
= false;
1028 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
1030 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1032 flush_work(&mvm
->d0i3_exit_work
);
1033 flush_work(&mvm
->async_handlers_wk
);
1034 flush_work(&mvm
->fw_error_dump_wk
);
1036 mutex_lock(&mvm
->mutex
);
1037 __iwl_mvm_mac_stop(mvm
);
1038 mutex_unlock(&mvm
->mutex
);
1041 * The worker might have been waiting for the mutex, let it run and
1042 * discover that its list is now empty.
1044 cancel_work_sync(&mvm
->async_handlers_wk
);
1047 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
1051 lockdep_assert_held(&mvm
->mutex
);
1053 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
1054 if (!mvm
->phy_ctxts
[i
].ref
)
1055 return &mvm
->phy_ctxts
[i
];
1057 IWL_ERR(mvm
, "No available PHY context\n");
1061 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
1064 /* FW is in charge of regulatory enforcement */
1065 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd
= {
1066 .mac_context_id
= iwl_mvm_vif_from_mac80211(vif
)->id
,
1067 .pwr_restriction
= cpu_to_le16(tx_power
),
1070 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, 0,
1071 sizeof(reduce_txpwr_cmd
),
1075 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
1076 struct ieee80211_vif
*vif
)
1078 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1079 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1083 * make sure D0i3 exit is completed, otherwise a target access
1084 * during tx queue configuration could be done when still in
1087 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_ADD_IF
);
1092 * Not much to do here. The stack will not allow interface
1093 * types or combinations that we didn't advertise, so we
1094 * don't really have to check the types.
1097 mutex_lock(&mvm
->mutex
);
1099 /* Allocate resources for the MAC context, and add it to the fw */
1100 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
1104 /* Counting number of interfaces is needed for legacy PM */
1105 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1109 * The AP binding flow can be done only after the beacon
1110 * template is configured (which happens only in the mac80211
1111 * start_ap() flow), and adding the broadcast station can happen
1112 * only after the binding.
1113 * In addition, since modifying the MAC before adding a bcast
1114 * station is not allowed by the FW, delay the adding of MAC context to
1115 * the point where we can also add the bcast station.
1116 * In short: there's not much we can do at this point, other than
1117 * allocating resources :)
1119 if (vif
->type
== NL80211_IFTYPE_AP
||
1120 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1121 ret
= iwl_mvm_alloc_bcast_sta(mvm
, vif
);
1123 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
1127 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1131 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1135 ret
= iwl_mvm_power_update_mac(mvm
);
1139 /* beacon filtering */
1140 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
1142 goto out_remove_mac
;
1144 if (!mvm
->bf_allowed_vif
&&
1145 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
) {
1146 mvm
->bf_allowed_vif
= mvmvif
;
1147 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
1148 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
1152 * P2P_DEVICE interface does not have a channel context assigned to it,
1153 * so a dedicated PHY context is allocated to it and the corresponding
1154 * MAC context is bound to it at this stage.
1156 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1158 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1159 if (!mvmvif
->phy_ctxt
) {
1164 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1165 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1169 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
);
1173 /* Save a pointer to p2p device vif, so it can later be used to
1174 * update the p2p device MAC when a GO is started/stopped */
1175 mvm
->p2p_device_vif
= vif
;
1178 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1182 iwl_mvm_binding_remove_vif(mvm
, vif
);
1184 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1186 if (mvm
->bf_allowed_vif
== mvmvif
) {
1187 mvm
->bf_allowed_vif
= NULL
;
1188 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1189 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1192 mvmvif
->phy_ctxt
= NULL
;
1193 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1195 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1198 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1200 mutex_unlock(&mvm
->mutex
);
1202 iwl_mvm_unref(mvm
, IWL_MVM_REF_ADD_IF
);
1207 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
1208 struct ieee80211_vif
*vif
)
1210 u32 tfd_msk
= iwl_mvm_mac_get_queues_mask(vif
);
1213 mutex_lock(&mvm
->mutex
);
1214 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, true);
1215 mutex_unlock(&mvm
->mutex
);
1218 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1220 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1221 * We assume here that all the packets sent to the OFFCHANNEL
1222 * queue are sent in ROC session.
1224 flush_work(&mvm
->roc_done_wk
);
1227 * By now, all the AC queues are empty. The AGG queues are
1228 * empty too. We already got all the Tx responses for all the
1229 * packets in the queues. The drain work can have been
1230 * triggered. Flush it.
1232 flush_work(&mvm
->sta_drained_wk
);
1236 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
1237 struct ieee80211_vif
*vif
)
1239 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1240 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1242 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1244 mutex_lock(&mvm
->mutex
);
1246 if (mvm
->bf_allowed_vif
== mvmvif
) {
1247 mvm
->bf_allowed_vif
= NULL
;
1248 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1249 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1252 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
1255 * For AP/GO interface, the tear down of the resources allocated to the
1256 * interface is be handled as part of the stop_ap flow.
1258 if (vif
->type
== NL80211_IFTYPE_AP
||
1259 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1260 #ifdef CONFIG_NL80211_TESTMODE
1261 if (vif
== mvm
->noa_vif
) {
1262 mvm
->noa_vif
= NULL
;
1263 mvm
->noa_duration
= 0;
1266 iwl_mvm_dealloc_bcast_sta(mvm
, vif
);
1270 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1271 mvm
->p2p_device_vif
= NULL
;
1272 iwl_mvm_rm_bcast_sta(mvm
, vif
);
1273 iwl_mvm_binding_remove_vif(mvm
, vif
);
1274 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1275 mvmvif
->phy_ctxt
= NULL
;
1278 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1281 iwl_mvm_power_update_mac(mvm
);
1282 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1285 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1286 mutex_unlock(&mvm
->mutex
);
1289 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
1294 struct iwl_mvm_mc_iter_data
{
1295 struct iwl_mvm
*mvm
;
1299 static void iwl_mvm_mc_iface_iterator(void *_data
, u8
*mac
,
1300 struct ieee80211_vif
*vif
)
1302 struct iwl_mvm_mc_iter_data
*data
= _data
;
1303 struct iwl_mvm
*mvm
= data
->mvm
;
1304 struct iwl_mcast_filter_cmd
*cmd
= mvm
->mcast_filter_cmd
;
1307 /* if we don't have free ports, mcast frames will be dropped */
1308 if (WARN_ON_ONCE(data
->port_id
>= MAX_PORT_ID_NUM
))
1311 if (vif
->type
!= NL80211_IFTYPE_STATION
||
1312 !vif
->bss_conf
.assoc
)
1315 cmd
->port_id
= data
->port_id
++;
1316 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
1317 len
= roundup(sizeof(*cmd
) + cmd
->count
* ETH_ALEN
, 4);
1319 ret
= iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_ASYNC
, len
, cmd
);
1321 IWL_ERR(mvm
, "mcast filter cmd error. ret=%d\n", ret
);
1324 static void iwl_mvm_recalc_multicast(struct iwl_mvm
*mvm
)
1326 struct iwl_mvm_mc_iter_data iter_data
= {
1330 lockdep_assert_held(&mvm
->mutex
);
1332 if (WARN_ON_ONCE(!mvm
->mcast_filter_cmd
))
1335 ieee80211_iterate_active_interfaces_atomic(
1336 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1337 iwl_mvm_mc_iface_iterator
, &iter_data
);
1340 static u64
iwl_mvm_prepare_multicast(struct ieee80211_hw
*hw
,
1341 struct netdev_hw_addr_list
*mc_list
)
1343 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1344 struct iwl_mcast_filter_cmd
*cmd
;
1345 struct netdev_hw_addr
*addr
;
1350 addr_count
= netdev_hw_addr_list_count(mc_list
);
1351 pass_all
= addr_count
> MAX_MCAST_FILTERING_ADDRESSES
||
1352 IWL_MVM_FW_MCAST_FILTER_PASS_ALL
;
1356 len
= roundup(sizeof(*cmd
) + addr_count
* ETH_ALEN
, 4);
1357 cmd
= kzalloc(len
, GFP_ATOMIC
);
1363 return (u64
)(unsigned long)cmd
;
1366 netdev_hw_addr_list_for_each(addr
, mc_list
) {
1367 IWL_DEBUG_MAC80211(mvm
, "mcast addr (%d): %pM\n",
1368 cmd
->count
, addr
->addr
);
1369 memcpy(&cmd
->addr_list
[cmd
->count
* ETH_ALEN
],
1370 addr
->addr
, ETH_ALEN
);
1374 return (u64
)(unsigned long)cmd
;
1377 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
1378 unsigned int changed_flags
,
1379 unsigned int *total_flags
,
1382 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1383 struct iwl_mcast_filter_cmd
*cmd
= (void *)(unsigned long)multicast
;
1385 mutex_lock(&mvm
->mutex
);
1387 /* replace previous configuration */
1388 kfree(mvm
->mcast_filter_cmd
);
1389 mvm
->mcast_filter_cmd
= cmd
;
1394 iwl_mvm_recalc_multicast(mvm
);
1396 mutex_unlock(&mvm
->mutex
);
1400 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1401 struct iwl_bcast_iter_data
{
1402 struct iwl_mvm
*mvm
;
1403 struct iwl_bcast_filter_cmd
*cmd
;
1408 iwl_mvm_set_bcast_filter(struct ieee80211_vif
*vif
,
1409 const struct iwl_fw_bcast_filter
*in_filter
,
1410 struct iwl_fw_bcast_filter
*out_filter
)
1412 struct iwl_fw_bcast_filter_attr
*attr
;
1415 memcpy(out_filter
, in_filter
, sizeof(*out_filter
));
1417 for (i
= 0; i
< ARRAY_SIZE(out_filter
->attrs
); i
++) {
1418 attr
= &out_filter
->attrs
[i
];
1423 switch (attr
->reserved1
) {
1424 case cpu_to_le16(BC_FILTER_MAGIC_IP
):
1425 if (vif
->bss_conf
.arp_addr_cnt
!= 1) {
1430 attr
->val
= vif
->bss_conf
.arp_addr_list
[0];
1432 case cpu_to_le16(BC_FILTER_MAGIC_MAC
):
1433 attr
->val
= *(__be32
*)&vif
->addr
[2];
1438 attr
->reserved1
= 0;
1439 out_filter
->num_attrs
++;
1443 static void iwl_mvm_bcast_filter_iterator(void *_data
, u8
*mac
,
1444 struct ieee80211_vif
*vif
)
1446 struct iwl_bcast_iter_data
*data
= _data
;
1447 struct iwl_mvm
*mvm
= data
->mvm
;
1448 struct iwl_bcast_filter_cmd
*cmd
= data
->cmd
;
1449 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1450 struct iwl_fw_bcast_mac
*bcast_mac
;
1453 if (WARN_ON(mvmvif
->id
>= ARRAY_SIZE(cmd
->macs
)))
1456 bcast_mac
= &cmd
->macs
[mvmvif
->id
];
1459 * enable filtering only for associated stations, but not for P2P
1462 if (vif
->type
!= NL80211_IFTYPE_STATION
|| vif
->p2p
||
1463 !vif
->bss_conf
.assoc
)
1466 bcast_mac
->default_discard
= 1;
1468 /* copy all configured filters */
1469 for (i
= 0; mvm
->bcast_filters
[i
].attrs
[0].mask
; i
++) {
1471 * Make sure we don't exceed our filters limit.
1472 * if there is still a valid filter to be configured,
1473 * be on the safe side and just allow bcast for this mac.
1475 if (WARN_ON_ONCE(data
->current_filter
>=
1476 ARRAY_SIZE(cmd
->filters
))) {
1477 bcast_mac
->default_discard
= 0;
1478 bcast_mac
->attached_filters
= 0;
1482 iwl_mvm_set_bcast_filter(vif
,
1483 &mvm
->bcast_filters
[i
],
1484 &cmd
->filters
[data
->current_filter
]);
1486 /* skip current filter if it contains no attributes */
1487 if (!cmd
->filters
[data
->current_filter
].num_attrs
)
1490 /* attach the filter to current mac */
1491 bcast_mac
->attached_filters
|=
1492 cpu_to_le16(BIT(data
->current_filter
));
1494 data
->current_filter
++;
1498 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm
*mvm
,
1499 struct iwl_bcast_filter_cmd
*cmd
)
1501 struct iwl_bcast_iter_data iter_data
= {
1506 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL
)
1509 memset(cmd
, 0, sizeof(*cmd
));
1510 cmd
->max_bcast_filters
= ARRAY_SIZE(cmd
->filters
);
1511 cmd
->max_macs
= ARRAY_SIZE(cmd
->macs
);
1513 #ifdef CONFIG_IWLWIFI_DEBUGFS
1514 /* use debugfs filters/macs if override is configured */
1515 if (mvm
->dbgfs_bcast_filtering
.override
) {
1516 memcpy(cmd
->filters
, &mvm
->dbgfs_bcast_filtering
.cmd
.filters
,
1517 sizeof(cmd
->filters
));
1518 memcpy(cmd
->macs
, &mvm
->dbgfs_bcast_filtering
.cmd
.macs
,
1524 /* if no filters are configured, do nothing */
1525 if (!mvm
->bcast_filters
)
1528 /* configure and attach these filters for each associated sta vif */
1529 ieee80211_iterate_active_interfaces(
1530 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1531 iwl_mvm_bcast_filter_iterator
, &iter_data
);
1535 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1536 struct ieee80211_vif
*vif
)
1538 struct iwl_bcast_filter_cmd cmd
;
1540 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BCAST_FILTERING
))
1543 if (!iwl_mvm_bcast_filter_build_cmd(mvm
, &cmd
))
1546 return iwl_mvm_send_cmd_pdu(mvm
, BCAST_FILTER_CMD
, 0,
1550 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1551 struct ieee80211_vif
*vif
)
1557 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
1558 struct ieee80211_vif
*vif
,
1559 struct ieee80211_bss_conf
*bss_conf
,
1562 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1566 * Re-calculate the tsf id, as the master-slave relations depend on the
1567 * beacon interval, which was not known when the station interface was
1570 if (changes
& BSS_CHANGED_ASSOC
&& bss_conf
->assoc
)
1571 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1574 * If we're not associated yet, take the (new) BSSID before associating
1575 * so the firmware knows. If we're already associated, then use the old
1576 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1577 * branch for disassociation below.
1579 if (changes
& BSS_CHANGED_BSSID
&& !mvmvif
->associated
)
1580 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1582 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, mvmvif
->bssid
);
1584 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1586 /* after sending it once, adopt mac80211 data */
1587 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1588 mvmvif
->associated
= bss_conf
->assoc
;
1590 if (changes
& BSS_CHANGED_ASSOC
) {
1591 if (bss_conf
->assoc
) {
1592 /* add quota for this interface */
1593 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1595 IWL_ERR(mvm
, "failed to update quotas\n");
1599 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
1602 * If we're restarting then the firmware will
1603 * obviously have lost synchronisation with
1604 * the AP. It will attempt to synchronise by
1605 * itself, but we can make it more reliable by
1606 * scheduling a session protection time event.
1608 * The firmware needs to receive a beacon to
1609 * catch up with synchronisation, use 110% of
1610 * the beacon interval.
1612 * Set a large maximum delay to allow for more
1613 * than a single interface.
1615 u32 dur
= (11 * vif
->bss_conf
.beacon_int
) / 10;
1616 iwl_mvm_protect_session(mvm
, vif
, dur
, dur
,
1620 iwl_mvm_sf_update(mvm
, vif
, false);
1621 iwl_mvm_power_vif_assoc(mvm
, vif
);
1623 iwl_mvm_ref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1624 iwl_mvm_update_smps(mvm
, vif
,
1625 IWL_MVM_SMPS_REQ_PROT
,
1626 IEEE80211_SMPS_DYNAMIC
);
1628 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_STATION_COUNT
) {
1630 * If update fails - SF might be running in associated
1631 * mode while disassociated - which is forbidden.
1633 WARN_ONCE(iwl_mvm_sf_update(mvm
, vif
, false),
1634 "Failed to update SF upon disassociation\n");
1636 /* remove AP station now that the MAC is unassoc */
1637 ret
= iwl_mvm_rm_sta_id(mvm
, vif
, mvmvif
->ap_sta_id
);
1639 IWL_ERR(mvm
, "failed to remove AP station\n");
1641 if (mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
1642 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1643 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
1644 /* remove quota for this interface */
1645 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1647 IWL_ERR(mvm
, "failed to update quotas\n");
1650 iwl_mvm_unref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1652 /* this will take the cleared BSSID from bss_conf */
1653 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
1656 "failed to update MAC %pM (clear after unassoc)\n",
1660 iwl_mvm_recalc_multicast(mvm
);
1661 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1663 /* reset rssi values */
1664 mvmvif
->bf_data
.ave_beacon_signal
= 0;
1666 iwl_mvm_bt_coex_vif_change(mvm
);
1667 iwl_mvm_update_smps(mvm
, vif
, IWL_MVM_SMPS_REQ_TT
,
1668 IEEE80211_SMPS_AUTOMATIC
);
1669 } else if (changes
& BSS_CHANGED_BEACON_INFO
) {
1671 * We received a beacon _after_ association so
1672 * remove the session protection.
1674 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1675 &mvmvif
->time_event_data
);
1678 if (changes
& BSS_CHANGED_BEACON_INFO
) {
1679 iwl_mvm_sf_update(mvm
, vif
, false);
1680 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
1683 if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_P2P_PS
| BSS_CHANGED_QOS
)) {
1684 ret
= iwl_mvm_power_update_mac(mvm
);
1686 IWL_ERR(mvm
, "failed to update power mode\n");
1689 if (changes
& BSS_CHANGED_TXPOWER
) {
1690 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
1692 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
1695 if (changes
& BSS_CHANGED_CQM
) {
1696 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed\n");
1697 /* reset cqm events tracking */
1698 mvmvif
->bf_data
.last_cqm_event
= 0;
1699 if (mvmvif
->bf_data
.bf_enabled
) {
1700 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
1703 "failed to update CQM thresholds\n");
1707 if (changes
& BSS_CHANGED_ARP_FILTER
) {
1708 IWL_DEBUG_MAC80211(mvm
, "arp filter changed\n");
1709 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1713 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw
*hw
,
1714 struct ieee80211_vif
*vif
)
1716 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1717 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1721 * iwl_mvm_mac_ctxt_add() might read directly from the device
1722 * (the system time), so make sure it is available.
1724 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_START_AP
);
1728 mutex_lock(&mvm
->mutex
);
1730 /* Send the beacon template */
1731 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
1736 * Re-calculate the tsf id, as the master-slave relations depend on the
1737 * beacon interval, which was not known when the AP interface was added.
1739 if (vif
->type
== NL80211_IFTYPE_AP
)
1740 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1742 /* Add the mac context */
1743 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1747 /* Perform the binding */
1748 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1752 /* Send the bcast station. At this stage the TBTT and DTIM time events
1753 * are added and applied to the scheduler */
1754 ret
= iwl_mvm_send_add_bcast_sta(mvm
, vif
);
1758 /* must be set before quota calculations */
1759 mvmvif
->ap_ibss_active
= true;
1761 /* power updated needs to be done before quotas */
1762 iwl_mvm_power_update_mac(mvm
);
1764 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1766 goto out_quota_failed
;
1768 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1769 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1770 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
1772 iwl_mvm_ref(mvm
, IWL_MVM_REF_AP_IBSS
);
1774 iwl_mvm_bt_coex_vif_change(mvm
);
1776 /* we don't support TDLS during DCM */
1777 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
1778 iwl_mvm_teardown_tdls_peers(mvm
);
1780 mutex_unlock(&mvm
->mutex
);
1784 iwl_mvm_power_update_mac(mvm
);
1785 mvmvif
->ap_ibss_active
= false;
1786 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
1788 iwl_mvm_binding_remove_vif(mvm
, vif
);
1790 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1792 mutex_unlock(&mvm
->mutex
);
1793 iwl_mvm_unref(mvm
, IWL_MVM_REF_START_AP
);
1797 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw
*hw
,
1798 struct ieee80211_vif
*vif
)
1800 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1801 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1803 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1805 mutex_lock(&mvm
->mutex
);
1807 /* Handle AP stop while in CSA */
1808 if (rcu_access_pointer(mvm
->csa_vif
) == vif
) {
1809 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1810 &mvmvif
->time_event_data
);
1811 RCU_INIT_POINTER(mvm
->csa_vif
, NULL
);
1814 if (rcu_access_pointer(mvm
->csa_tx_blocked_vif
) == vif
) {
1815 RCU_INIT_POINTER(mvm
->csa_tx_blocked_vif
, NULL
);
1816 mvm
->csa_tx_block_bcn_timeout
= 0;
1819 mvmvif
->ap_ibss_active
= false;
1820 mvm
->ap_last_beacon_gp2
= 0;
1822 iwl_mvm_bt_coex_vif_change(mvm
);
1824 iwl_mvm_unref(mvm
, IWL_MVM_REF_AP_IBSS
);
1826 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1827 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1828 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
1830 iwl_mvm_update_quotas(mvm
, NULL
);
1831 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
1832 iwl_mvm_binding_remove_vif(mvm
, vif
);
1834 iwl_mvm_power_update_mac(mvm
);
1836 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1838 mutex_unlock(&mvm
->mutex
);
1842 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm
*mvm
,
1843 struct ieee80211_vif
*vif
,
1844 struct ieee80211_bss_conf
*bss_conf
,
1847 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1849 /* Changes will be applied when the AP/IBSS is started */
1850 if (!mvmvif
->ap_ibss_active
)
1853 if (changes
& (BSS_CHANGED_ERP_CTS_PROT
| BSS_CHANGED_HT
|
1854 BSS_CHANGED_BANDWIDTH
| BSS_CHANGED_QOS
) &&
1855 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
))
1856 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1858 /* Need to send a new beacon template to the FW */
1859 if (changes
& BSS_CHANGED_BEACON
&&
1860 iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
1861 IWL_WARN(mvm
, "Failed updating beacon data\n");
1863 if (changes
& BSS_CHANGED_TXPOWER
) {
1864 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
1866 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
1871 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
1872 struct ieee80211_vif
*vif
,
1873 struct ieee80211_bss_conf
*bss_conf
,
1876 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1879 * iwl_mvm_bss_info_changed_station() might call
1880 * iwl_mvm_protect_session(), which reads directly from
1881 * the device (the system time), so make sure it is available.
1883 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_BSS_CHANGED
))
1886 mutex_lock(&mvm
->mutex
);
1888 if (changes
& BSS_CHANGED_IDLE
&& !bss_conf
->idle
)
1889 iwl_mvm_scan_offload_stop(mvm
, true);
1891 switch (vif
->type
) {
1892 case NL80211_IFTYPE_STATION
:
1893 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
1895 case NL80211_IFTYPE_AP
:
1896 case NL80211_IFTYPE_ADHOC
:
1897 iwl_mvm_bss_info_changed_ap_ibss(mvm
, vif
, bss_conf
, changes
);
1900 /* shouldn't happen */
1904 mutex_unlock(&mvm
->mutex
);
1905 iwl_mvm_unref(mvm
, IWL_MVM_REF_BSS_CHANGED
);
1908 static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm
*mvm
,
1909 enum iwl_scan_status scan_type
)
1912 bool wait_for_handlers
= false;
1914 mutex_lock(&mvm
->mutex
);
1916 if (mvm
->scan_status
!= scan_type
) {
1918 /* make sure there are no pending notifications */
1919 wait_for_handlers
= true;
1923 switch (scan_type
) {
1924 case IWL_MVM_SCAN_SCHED
:
1925 ret
= iwl_mvm_scan_offload_stop(mvm
, true);
1927 case IWL_MVM_SCAN_OS
:
1928 ret
= iwl_mvm_cancel_scan(mvm
);
1930 case IWL_MVM_SCAN_NONE
:
1939 wait_for_handlers
= true;
1941 mutex_unlock(&mvm
->mutex
);
1943 /* make sure we consume the completion notification */
1944 if (wait_for_handlers
)
1945 iwl_mvm_wait_for_async_handlers(mvm
);
1949 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
1950 struct ieee80211_vif
*vif
,
1951 struct ieee80211_scan_request
*hw_req
)
1953 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1954 struct cfg80211_scan_request
*req
= &hw_req
->req
;
1957 if (req
->n_channels
== 0 ||
1958 req
->n_channels
> mvm
->fw
->ucode_capa
.n_scan_channels
)
1961 if (!(mvm
->fw
->ucode_capa
.capa
[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN
)) {
1962 ret
= iwl_mvm_cancel_scan_wait_notif(mvm
, IWL_MVM_SCAN_SCHED
);
1967 mutex_lock(&mvm
->mutex
);
1969 if (mvm
->scan_status
!= IWL_MVM_SCAN_NONE
) {
1974 iwl_mvm_ref(mvm
, IWL_MVM_REF_SCAN
);
1976 if (mvm
->fw
->ucode_capa
.capa
[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN
)
1977 ret
= iwl_mvm_scan_umac(mvm
, vif
, hw_req
);
1978 else if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
)
1979 ret
= iwl_mvm_unified_scan_lmac(mvm
, vif
, hw_req
);
1981 ret
= iwl_mvm_scan_request(mvm
, vif
, req
);
1984 iwl_mvm_unref(mvm
, IWL_MVM_REF_SCAN
);
1986 mutex_unlock(&mvm
->mutex
);
1990 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
1991 struct ieee80211_vif
*vif
)
1993 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1995 mutex_lock(&mvm
->mutex
);
1997 iwl_mvm_cancel_scan(mvm
);
1999 mutex_unlock(&mvm
->mutex
);
2003 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
2004 struct ieee80211_sta
*sta
, u16 tids
,
2006 enum ieee80211_frame_release_type reason
,
2009 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2011 /* Called when we need to transmit (a) frame(s) from mac80211 */
2013 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2014 tids
, more_data
, false);
2018 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw
*hw
,
2019 struct ieee80211_sta
*sta
, u16 tids
,
2021 enum ieee80211_frame_release_type reason
,
2024 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2026 /* Called when we need to transmit (a) frame(s) from agg queue */
2028 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2029 tids
, more_data
, true);
2032 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
2033 struct ieee80211_vif
*vif
,
2034 enum sta_notify_cmd cmd
,
2035 struct ieee80211_sta
*sta
)
2037 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2038 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2042 case STA_NOTIFY_SLEEP
:
2043 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
2044 ieee80211_sta_block_awake(hw
, sta
, true);
2045 spin_lock_bh(&mvmsta
->lock
);
2046 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
2047 struct iwl_mvm_tid_data
*tid_data
;
2049 tid_data
= &mvmsta
->tid_data
[tid
];
2050 if (tid_data
->state
!= IWL_AGG_ON
&&
2051 tid_data
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
2053 if (iwl_mvm_tid_queued(tid_data
) == 0)
2055 ieee80211_sta_set_buffered(sta
, tid
, true);
2057 spin_unlock_bh(&mvmsta
->lock
);
2059 * The fw updates the STA to be asleep. Tx packets on the Tx
2060 * queues to this station will not be transmitted. The fw will
2061 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2064 case STA_NOTIFY_AWAKE
:
2065 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
))
2067 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
2074 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw
*hw
,
2075 struct ieee80211_vif
*vif
,
2076 struct ieee80211_sta
*sta
)
2078 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2079 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
2082 * This is called before mac80211 does RCU synchronisation,
2083 * so here we already invalidate our internal RCU-protected
2084 * station pointer. The rest of the code will thus no longer
2085 * be able to find the station this way, and we don't rely
2086 * on further RCU synchronisation after the sta_state()
2087 * callback deleted the station.
2089 mutex_lock(&mvm
->mutex
);
2090 if (sta
== rcu_access_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
]))
2091 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
],
2093 mutex_unlock(&mvm
->mutex
);
2096 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
2097 struct ieee80211_vif
*vif
,
2098 struct ieee80211_sta
*sta
,
2099 enum ieee80211_sta_state old_state
,
2100 enum ieee80211_sta_state new_state
)
2102 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2103 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2106 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
2107 sta
->addr
, old_state
, new_state
);
2109 /* this would be a mac80211 bug ... but don't crash */
2110 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
2113 /* if a STA is being removed, reuse its ID */
2114 flush_work(&mvm
->sta_drained_wk
);
2116 mutex_lock(&mvm
->mutex
);
2117 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2118 new_state
== IEEE80211_STA_NONE
) {
2120 * Firmware bug - it'll crash if the beacon interval is less
2121 * than 16. We can't avoid connecting at all, so refuse the
2122 * station state change, this will cause mac80211 to abandon
2123 * attempts to connect to this AP, and eventually wpa_s will
2124 * blacklist the AP...
2126 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2127 vif
->bss_conf
.beacon_int
< 16) {
2129 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2130 sta
->addr
, vif
->bss_conf
.beacon_int
);
2137 iwl_mvm_tdls_sta_count(mvm
, NULL
) ==
2138 IWL_MVM_TDLS_STA_COUNT
||
2139 iwl_mvm_phy_ctx_count(mvm
) > 1)) {
2140 IWL_DEBUG_MAC80211(mvm
, "refusing TDLS sta\n");
2145 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
2146 if (sta
->tdls
&& ret
== 0)
2147 iwl_mvm_recalc_tdls_state(mvm
, vif
, true);
2148 } else if (old_state
== IEEE80211_STA_NONE
&&
2149 new_state
== IEEE80211_STA_AUTH
) {
2151 * EBS may be disabled due to previous failures reported by FW.
2152 * Reset EBS status here assuming environment has been changed.
2154 mvm
->last_ebs_successful
= true;
2156 } else if (old_state
== IEEE80211_STA_AUTH
&&
2157 new_state
== IEEE80211_STA_ASSOC
) {
2158 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
2160 iwl_mvm_rs_rate_init(mvm
, sta
,
2161 mvmvif
->phy_ctxt
->channel
->band
,
2163 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2164 new_state
== IEEE80211_STA_AUTHORIZED
) {
2166 /* we don't support TDLS during DCM */
2167 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2168 iwl_mvm_teardown_tdls_peers(mvm
);
2170 /* enable beacon filtering */
2171 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
2173 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
2174 new_state
== IEEE80211_STA_ASSOC
) {
2175 /* disable beacon filtering */
2176 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
, 0));
2178 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2179 new_state
== IEEE80211_STA_AUTH
) {
2181 } else if (old_state
== IEEE80211_STA_AUTH
&&
2182 new_state
== IEEE80211_STA_NONE
) {
2184 } else if (old_state
== IEEE80211_STA_NONE
&&
2185 new_state
== IEEE80211_STA_NOTEXIST
) {
2186 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
2188 iwl_mvm_recalc_tdls_state(mvm
, vif
, false);
2193 mutex_unlock(&mvm
->mutex
);
2195 if (sta
->tdls
&& ret
== 0) {
2196 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2197 new_state
== IEEE80211_STA_NONE
)
2198 ieee80211_reserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2199 else if (old_state
== IEEE80211_STA_NONE
&&
2200 new_state
== IEEE80211_STA_NOTEXIST
)
2201 ieee80211_unreserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2207 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
2209 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2211 mvm
->rts_threshold
= value
;
2216 static void iwl_mvm_sta_rc_update(struct ieee80211_hw
*hw
,
2217 struct ieee80211_vif
*vif
,
2218 struct ieee80211_sta
*sta
, u32 changed
)
2220 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2222 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2223 changed
& IEEE80211_RC_NSS_CHANGED
)
2224 iwl_mvm_sf_update(mvm
, vif
, false);
2227 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
2228 struct ieee80211_vif
*vif
, u16 ac
,
2229 const struct ieee80211_tx_queue_params
*params
)
2231 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2232 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2234 mvmvif
->queue_params
[ac
] = *params
;
2237 * No need to update right away, we'll get BSS_CHANGED_QOS
2238 * The exception is P2P_DEVICE interface which needs immediate update.
2240 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
2243 mutex_lock(&mvm
->mutex
);
2244 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2245 mutex_unlock(&mvm
->mutex
);
2251 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
2252 struct ieee80211_vif
*vif
)
2254 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2255 u32 duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
,
2256 200 + vif
->bss_conf
.beacon_int
);
2257 u32 min_duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
,
2258 100 + vif
->bss_conf
.beacon_int
);
2260 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
2264 * iwl_mvm_protect_session() reads directly from the device
2265 * (the system time), so make sure it is available.
2267 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PREPARE_TX
))
2270 mutex_lock(&mvm
->mutex
);
2271 /* Try really hard to protect the session and hear a beacon */
2272 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
, 500, false);
2273 mutex_unlock(&mvm
->mutex
);
2275 iwl_mvm_unref(mvm
, IWL_MVM_REF_PREPARE_TX
);
2278 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw
*hw
,
2279 struct ieee80211_vif
*vif
,
2280 struct cfg80211_sched_scan_request
*req
,
2281 struct ieee80211_scan_ies
*ies
)
2283 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2286 if (!(mvm
->fw
->ucode_capa
.capa
[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN
)) {
2287 ret
= iwl_mvm_cancel_scan_wait_notif(mvm
, IWL_MVM_SCAN_OS
);
2292 mutex_lock(&mvm
->mutex
);
2294 /* Newest FW fixes sched scan while connected on another interface */
2295 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
) {
2296 if (!vif
->bss_conf
.idle
) {
2300 } else if (!iwl_mvm_is_idle(mvm
)) {
2305 if (mvm
->scan_status
!= IWL_MVM_SCAN_NONE
) {
2310 ret
= iwl_mvm_scan_offload_start(mvm
, vif
, req
, ies
);
2312 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
2315 mutex_unlock(&mvm
->mutex
);
2319 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw
*hw
,
2320 struct ieee80211_vif
*vif
)
2322 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2325 mutex_lock(&mvm
->mutex
);
2326 ret
= iwl_mvm_scan_offload_stop(mvm
, false);
2327 mutex_unlock(&mvm
->mutex
);
2328 iwl_mvm_wait_for_async_handlers(mvm
);
2334 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
2335 enum set_key_cmd cmd
,
2336 struct ieee80211_vif
*vif
,
2337 struct ieee80211_sta
*sta
,
2338 struct ieee80211_key_conf
*key
)
2340 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2343 if (iwlwifi_mod_params
.sw_crypto
) {
2344 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
2348 switch (key
->cipher
) {
2349 case WLAN_CIPHER_SUITE_TKIP
:
2350 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
2352 case WLAN_CIPHER_SUITE_CCMP
:
2353 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
2355 case WLAN_CIPHER_SUITE_AES_CMAC
:
2356 WARN_ON_ONCE(!(hw
->flags
& IEEE80211_HW_MFP_CAPABLE
));
2358 case WLAN_CIPHER_SUITE_WEP40
:
2359 case WLAN_CIPHER_SUITE_WEP104
:
2360 /* For non-client mode, only use WEP keys for TX as we probably
2361 * don't have a station yet anyway and would then have to keep
2362 * track of the keys, linking them to each of the clients/peers
2363 * as they appear. For now, don't do that, for performance WEP
2364 * offload doesn't really matter much, but we need it for some
2365 * other offload features in client mode.
2367 if (vif
->type
!= NL80211_IFTYPE_STATION
)
2371 /* currently FW supports only one optional cipher scheme */
2372 if (hw
->n_cipher_schemes
&&
2373 hw
->cipher_schemes
->cipher
== key
->cipher
)
2374 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2379 mutex_lock(&mvm
->mutex
);
2383 if ((vif
->type
== NL80211_IFTYPE_ADHOC
||
2384 vif
->type
== NL80211_IFTYPE_AP
) && !sta
) {
2386 * GTK on AP interface is a TX-only key, return 0;
2387 * on IBSS they're per-station and because we're lazy
2388 * we don't support them for RX, so do the same.
2391 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2395 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
2396 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, false);
2398 IWL_WARN(mvm
, "set key failed\n");
2400 * can't add key for RX, but we don't need it
2401 * in the device for TX so still return 0
2403 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2409 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2414 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
2415 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
2421 mutex_unlock(&mvm
->mutex
);
2425 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2426 struct ieee80211_vif
*vif
,
2427 struct ieee80211_key_conf
*keyconf
,
2428 struct ieee80211_sta
*sta
,
2429 u32 iv32
, u16
*phase1key
)
2431 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2433 if (keyconf
->hw_key_idx
== STA_KEY_IDX_INVALID
)
2436 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
2440 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data
*notif_wait
,
2441 struct iwl_rx_packet
*pkt
, void *data
)
2443 struct iwl_mvm
*mvm
=
2444 container_of(notif_wait
, struct iwl_mvm
, notif_wait
);
2445 struct iwl_hs20_roc_res
*resp
;
2446 int resp_len
= iwl_rx_packet_payload_len(pkt
);
2447 struct iwl_mvm_time_event_data
*te_data
= data
;
2449 if (WARN_ON(pkt
->hdr
.cmd
!= HOT_SPOT_CMD
))
2452 if (WARN_ON_ONCE(resp_len
!= sizeof(*resp
))) {
2453 IWL_ERR(mvm
, "Invalid HOT_SPOT_CMD response\n");
2457 resp
= (void *)pkt
->data
;
2460 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2461 resp
->status
, resp
->event_unique_id
);
2463 te_data
->uid
= le32_to_cpu(resp
->event_unique_id
);
2464 IWL_DEBUG_TE(mvm
, "TIME_EVENT_CMD response - UID = 0x%x\n",
2467 spin_lock_bh(&mvm
->time_event_lock
);
2468 list_add_tail(&te_data
->list
, &mvm
->aux_roc_te_list
);
2469 spin_unlock_bh(&mvm
->time_event_lock
);
2474 #define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2475 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm
*mvm
,
2476 struct ieee80211_channel
*channel
,
2477 struct ieee80211_vif
*vif
,
2480 int res
, time_reg
= DEVICE_SYSTEM_TIME_REG
;
2481 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2482 struct iwl_mvm_time_event_data
*te_data
= &mvmvif
->hs_time_event_data
;
2483 static const u8 time_event_response
[] = { HOT_SPOT_CMD
};
2484 struct iwl_notification_wait wait_time_event
;
2485 struct iwl_hs20_roc_req aux_roc_req
= {
2486 .action
= cpu_to_le32(FW_CTXT_ACTION_ADD
),
2488 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX
, 0)),
2489 .sta_id_and_color
= cpu_to_le32(mvm
->aux_sta
.sta_id
),
2490 /* Set the channel info data */
2491 .channel_info
.band
= (channel
->band
== IEEE80211_BAND_2GHZ
) ?
2492 PHY_BAND_24
: PHY_BAND_5
,
2493 .channel_info
.channel
= channel
->hw_value
,
2494 .channel_info
.width
= PHY_VHT_CHANNEL_MODE20
,
2495 /* Set the time and duration */
2496 .apply_time
= cpu_to_le32(iwl_read_prph(mvm
->trans
, time_reg
)),
2497 .apply_time_max_delay
=
2498 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL
)),
2499 .duration
= cpu_to_le32(MSEC_TO_TU(duration
)),
2502 /* Set the node address */
2503 memcpy(aux_roc_req
.node_addr
, vif
->addr
, ETH_ALEN
);
2505 lockdep_assert_held(&mvm
->mutex
);
2507 spin_lock_bh(&mvm
->time_event_lock
);
2509 if (WARN_ON(te_data
->id
== HOT_SPOT_CMD
)) {
2510 spin_unlock_bh(&mvm
->time_event_lock
);
2515 te_data
->duration
= duration
;
2516 te_data
->id
= HOT_SPOT_CMD
;
2518 spin_unlock_bh(&mvm
->time_event_lock
);
2521 * Use a notification wait, which really just processes the
2522 * command response and doesn't wait for anything, in order
2523 * to be able to process the response and get the UID inside
2524 * the RX path. Using CMD_WANT_SKB doesn't work because it
2525 * stores the buffer and then wakes up this thread, by which
2526 * time another notification (that the time event started)
2527 * might already be processed unsuccessfully.
2529 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_time_event
,
2530 time_event_response
,
2531 ARRAY_SIZE(time_event_response
),
2532 iwl_mvm_rx_aux_roc
, te_data
);
2534 res
= iwl_mvm_send_cmd_pdu(mvm
, HOT_SPOT_CMD
, 0, sizeof(aux_roc_req
),
2538 IWL_ERR(mvm
, "Couldn't send HOT_SPOT_CMD: %d\n", res
);
2539 iwl_remove_notification(&mvm
->notif_wait
, &wait_time_event
);
2543 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2544 res
= iwl_wait_notification(&mvm
->notif_wait
, &wait_time_event
, 1);
2545 /* should never fail */
2550 spin_lock_bh(&mvm
->time_event_lock
);
2551 iwl_mvm_te_clear_data(mvm
, te_data
);
2552 spin_unlock_bh(&mvm
->time_event_lock
);
2558 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
2559 struct ieee80211_vif
*vif
,
2560 struct ieee80211_channel
*channel
,
2562 enum ieee80211_roc_type type
)
2564 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2565 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2566 struct cfg80211_chan_def chandef
;
2567 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2570 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
2573 mutex_lock(&mvm
->mutex
);
2575 switch (vif
->type
) {
2576 case NL80211_IFTYPE_STATION
:
2577 /* Use aux roc framework (HS20) */
2578 ret
= iwl_mvm_send_aux_roc_cmd(mvm
, channel
,
2581 case NL80211_IFTYPE_P2P_DEVICE
:
2585 IWL_ERR(mvm
, "vif isn't P2P_DEVICE: %d\n", vif
->type
);
2590 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
2591 phy_ctxt
= &mvm
->phy_ctxts
[i
];
2592 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
2595 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
2597 * Unbind the P2P_DEVICE from the current PHY context,
2598 * and if the PHY context is not used remove it.
2600 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2601 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2604 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2606 /* Bind the P2P_DEVICE to the current PHY Context */
2607 mvmvif
->phy_ctxt
= phy_ctxt
;
2609 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2610 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2613 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2614 goto schedule_time_event
;
2618 /* Need to update the PHY context only if the ROC channel changed */
2619 if (channel
== mvmvif
->phy_ctxt
->channel
)
2620 goto schedule_time_event
;
2622 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
2625 * Change the PHY context configuration as it is currently referenced
2626 * only by the P2P Device MAC
2628 if (mvmvif
->phy_ctxt
->ref
== 1) {
2629 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
2635 * The PHY context is shared with other MACs. Need to remove the
2636 * P2P Device from the binding, allocate an new PHY context and
2637 * create a new binding
2639 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2645 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
2648 IWL_ERR(mvm
, "Failed to change PHY context\n");
2652 /* Unbind the P2P_DEVICE from the current PHY context */
2653 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2654 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2657 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2659 /* Bind the P2P_DEVICE to the new allocated PHY context */
2660 mvmvif
->phy_ctxt
= phy_ctxt
;
2662 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2663 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2666 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2669 schedule_time_event
:
2670 /* Schedule the time events */
2671 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
2674 mutex_unlock(&mvm
->mutex
);
2675 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2679 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
2681 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2683 IWL_DEBUG_MAC80211(mvm
, "enter\n");
2685 mutex_lock(&mvm
->mutex
);
2686 iwl_mvm_stop_roc(mvm
);
2687 mutex_unlock(&mvm
->mutex
);
2689 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2693 static int __iwl_mvm_add_chanctx(struct iwl_mvm
*mvm
,
2694 struct ieee80211_chanctx_conf
*ctx
)
2696 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2697 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2700 lockdep_assert_held(&mvm
->mutex
);
2702 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
2704 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2710 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2711 ctx
->rx_chains_static
,
2712 ctx
->rx_chains_dynamic
);
2714 IWL_ERR(mvm
, "Failed to add PHY context\n");
2718 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
2719 *phy_ctxt_id
= phy_ctxt
->id
;
2724 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
2725 struct ieee80211_chanctx_conf
*ctx
)
2727 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2730 mutex_lock(&mvm
->mutex
);
2731 ret
= __iwl_mvm_add_chanctx(mvm
, ctx
);
2732 mutex_unlock(&mvm
->mutex
);
2737 static void __iwl_mvm_remove_chanctx(struct iwl_mvm
*mvm
,
2738 struct ieee80211_chanctx_conf
*ctx
)
2740 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2741 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2743 lockdep_assert_held(&mvm
->mutex
);
2745 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
2748 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
2749 struct ieee80211_chanctx_conf
*ctx
)
2751 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2753 mutex_lock(&mvm
->mutex
);
2754 __iwl_mvm_remove_chanctx(mvm
, ctx
);
2755 mutex_unlock(&mvm
->mutex
);
2758 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
2759 struct ieee80211_chanctx_conf
*ctx
,
2762 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2763 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2764 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2766 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
2767 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
2768 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
2769 IEEE80211_CHANCTX_CHANGE_RADAR
|
2770 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH
)),
2771 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2772 phy_ctxt
->ref
, changed
))
2775 mutex_lock(&mvm
->mutex
);
2776 iwl_mvm_bt_coex_vif_change(mvm
);
2777 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2778 ctx
->rx_chains_static
,
2779 ctx
->rx_chains_dynamic
);
2780 mutex_unlock(&mvm
->mutex
);
2783 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm
*mvm
,
2784 struct ieee80211_vif
*vif
,
2785 struct ieee80211_chanctx_conf
*ctx
,
2786 bool switching_chanctx
)
2788 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2789 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2790 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2793 lockdep_assert_held(&mvm
->mutex
);
2795 mvmvif
->phy_ctxt
= phy_ctxt
;
2797 switch (vif
->type
) {
2798 case NL80211_IFTYPE_AP
:
2799 /* Unless it's a CSA flow we have nothing to do here */
2800 if (vif
->csa_active
) {
2801 mvmvif
->ap_ibss_active
= true;
2804 case NL80211_IFTYPE_ADHOC
:
2806 * The AP binding flow is handled as part of the start_ap flow
2807 * (in bss_info_changed), similarly for IBSS.
2811 case NL80211_IFTYPE_STATION
:
2813 case NL80211_IFTYPE_MONITOR
:
2814 /* always disable PS when a monitor interface is active */
2815 mvmvif
->ps_disabled
= true;
2822 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2827 * Power state must be updated before quotas,
2828 * otherwise fw will complain.
2830 iwl_mvm_power_update_mac(mvm
);
2832 /* Setting the quota at this stage is only required for monitor
2833 * interfaces. For the other types, the bss_info changed flow
2834 * will handle quota settings.
2836 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
2837 mvmvif
->monitor_active
= true;
2838 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
2840 goto out_remove_binding
;
2843 /* Handle binding during CSA */
2844 if ((vif
->type
== NL80211_IFTYPE_AP
) ||
2845 (switching_chanctx
&& (vif
->type
== NL80211_IFTYPE_STATION
))) {
2846 iwl_mvm_update_quotas(mvm
, NULL
);
2847 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2850 if (vif
->csa_active
&& vif
->type
== NL80211_IFTYPE_STATION
) {
2851 struct iwl_mvm_sta
*mvmsta
;
2853 mvmsta
= iwl_mvm_sta_from_staid_protected(mvm
,
2856 if (WARN_ON(!mvmsta
))
2859 /* TODO: only re-enable after the first beacon */
2860 iwl_mvm_sta_modify_disable_tx(mvm
, mvmsta
, false);
2866 iwl_mvm_binding_remove_vif(mvm
, vif
);
2867 iwl_mvm_power_update_mac(mvm
);
2870 mvmvif
->phy_ctxt
= NULL
;
2873 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
2874 struct ieee80211_vif
*vif
,
2875 struct ieee80211_chanctx_conf
*ctx
)
2877 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2880 mutex_lock(&mvm
->mutex
);
2881 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vif
, ctx
, false);
2882 mutex_unlock(&mvm
->mutex
);
2887 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm
*mvm
,
2888 struct ieee80211_vif
*vif
,
2889 struct ieee80211_chanctx_conf
*ctx
,
2890 bool switching_chanctx
)
2892 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2893 struct ieee80211_vif
*disabled_vif
= NULL
;
2894 struct iwl_mvm_sta
*mvmsta
;
2896 lockdep_assert_held(&mvm
->mutex
);
2898 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
2900 switch (vif
->type
) {
2901 case NL80211_IFTYPE_ADHOC
:
2903 case NL80211_IFTYPE_MONITOR
:
2904 mvmvif
->monitor_active
= false;
2905 mvmvif
->ps_disabled
= false;
2907 case NL80211_IFTYPE_AP
:
2908 /* This part is triggered only during CSA */
2909 if (!vif
->csa_active
|| !mvmvif
->ap_ibss_active
)
2912 mvmvif
->csa_countdown
= false;
2914 /* Set CS bit on all the stations */
2915 iwl_mvm_modify_all_sta_disable_tx(mvm
, mvmvif
, true);
2917 /* Save blocked iface, the timeout is set on the next beacon */
2918 rcu_assign_pointer(mvm
->csa_tx_blocked_vif
, vif
);
2920 mvmvif
->ap_ibss_active
= false;
2922 case NL80211_IFTYPE_STATION
:
2923 if (!switching_chanctx
)
2928 mvmsta
= iwl_mvm_sta_from_staid_protected(mvm
,
2931 if (!WARN_ON(!mvmsta
))
2932 iwl_mvm_sta_modify_disable_tx(mvm
, mvmsta
, true);
2934 iwl_mvm_mac_ctxt_changed(mvm
, vif
, true, NULL
);
2940 iwl_mvm_update_quotas(mvm
, disabled_vif
);
2941 iwl_mvm_binding_remove_vif(mvm
, vif
);
2944 mvmvif
->phy_ctxt
= NULL
;
2945 iwl_mvm_power_update_mac(mvm
);
2948 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
2949 struct ieee80211_vif
*vif
,
2950 struct ieee80211_chanctx_conf
*ctx
)
2952 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2954 mutex_lock(&mvm
->mutex
);
2955 __iwl_mvm_unassign_vif_chanctx(mvm
, vif
, ctx
, false);
2956 mutex_unlock(&mvm
->mutex
);
2960 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm
*mvm
,
2961 struct ieee80211_vif_chanctx_switch
*vifs
)
2965 mutex_lock(&mvm
->mutex
);
2966 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
2967 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].old_ctx
);
2969 ret
= __iwl_mvm_add_chanctx(mvm
, vifs
[0].new_ctx
);
2971 IWL_ERR(mvm
, "failed to add new_ctx during channel switch\n");
2975 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
2979 "failed to assign new_ctx during channel switch\n");
2983 /* we don't support TDLS during DCM - can be caused by channel switch */
2984 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2985 iwl_mvm_teardown_tdls_peers(mvm
);
2990 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].new_ctx
);
2993 if (__iwl_mvm_add_chanctx(mvm
, vifs
[0].old_ctx
)) {
2994 IWL_ERR(mvm
, "failed to add old_ctx back after failure.\n");
2998 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3000 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3007 /* things keep failing, better restart the hw */
3008 iwl_mvm_nic_restart(mvm
, false);
3011 mutex_unlock(&mvm
->mutex
);
3017 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm
*mvm
,
3018 struct ieee80211_vif_chanctx_switch
*vifs
)
3022 mutex_lock(&mvm
->mutex
);
3023 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
3025 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
3029 "failed to assign new_ctx during channel switch\n");
3036 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3038 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3045 /* things keep failing, better restart the hw */
3046 iwl_mvm_nic_restart(mvm
, false);
3049 mutex_unlock(&mvm
->mutex
);
3054 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw
*hw
,
3055 struct ieee80211_vif_chanctx_switch
*vifs
,
3057 enum ieee80211_chanctx_switch_mode mode
)
3059 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3062 /* we only support a single-vif right now */
3067 case CHANCTX_SWMODE_SWAP_CONTEXTS
:
3068 ret
= iwl_mvm_switch_vif_chanctx_swap(mvm
, vifs
);
3070 case CHANCTX_SWMODE_REASSIGN_VIF
:
3071 ret
= iwl_mvm_switch_vif_chanctx_reassign(mvm
, vifs
);
3081 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
3082 struct ieee80211_sta
*sta
,
3085 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3086 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
3088 if (!mvm_sta
|| !mvm_sta
->vif
) {
3089 IWL_ERR(mvm
, "Station is not associated to a vif\n");
3093 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
3096 #ifdef CONFIG_NL80211_TESTMODE
3097 static const struct nla_policy iwl_mvm_tm_policy
[IWL_MVM_TM_ATTR_MAX
+ 1] = {
3098 [IWL_MVM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
3099 [IWL_MVM_TM_ATTR_NOA_DURATION
] = { .type
= NLA_U32
},
3100 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
] = { .type
= NLA_U32
},
3103 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm
*mvm
,
3104 struct ieee80211_vif
*vif
,
3105 void *data
, int len
)
3107 struct nlattr
*tb
[IWL_MVM_TM_ATTR_MAX
+ 1];
3111 err
= nla_parse(tb
, IWL_MVM_TM_ATTR_MAX
, data
, len
, iwl_mvm_tm_policy
);
3115 if (!tb
[IWL_MVM_TM_ATTR_CMD
])
3118 switch (nla_get_u32(tb
[IWL_MVM_TM_ATTR_CMD
])) {
3119 case IWL_MVM_TM_CMD_SET_NOA
:
3120 if (!vif
|| vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
||
3121 !vif
->bss_conf
.enable_beacon
||
3122 !tb
[IWL_MVM_TM_ATTR_NOA_DURATION
])
3125 noa_duration
= nla_get_u32(tb
[IWL_MVM_TM_ATTR_NOA_DURATION
]);
3126 if (noa_duration
>= vif
->bss_conf
.beacon_int
)
3129 mvm
->noa_duration
= noa_duration
;
3132 return iwl_mvm_update_quotas(mvm
, NULL
);
3133 case IWL_MVM_TM_CMD_SET_BEACON_FILTER
:
3134 /* must be associated client vif - ignore authorized */
3135 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
||
3136 !vif
->bss_conf
.assoc
|| !vif
->bss_conf
.dtim_period
||
3137 !tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
])
3140 if (nla_get_u32(tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
]))
3141 return iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
3142 return iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3148 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw
*hw
,
3149 struct ieee80211_vif
*vif
,
3150 void *data
, int len
)
3152 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3155 mutex_lock(&mvm
->mutex
);
3156 err
= __iwl_mvm_mac_testmode_cmd(mvm
, vif
, data
, len
);
3157 mutex_unlock(&mvm
->mutex
);
3163 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw
*hw
,
3164 struct ieee80211_vif
*vif
,
3165 struct ieee80211_channel_switch
*chsw
)
3167 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3168 struct ieee80211_vif
*csa_vif
;
3169 struct iwl_mvm_vif
*mvmvif
;
3172 mutex_lock(&mvm
->mutex
);
3174 IWL_DEBUG_MAC80211(mvm
, "pre CSA to freq %d\n",
3175 chsw
->chandef
.center_freq1
);
3177 switch (vif
->type
) {
3178 case NL80211_IFTYPE_AP
:
3180 rcu_dereference_protected(mvm
->csa_vif
,
3181 lockdep_is_held(&mvm
->mutex
));
3182 if (WARN_ONCE(csa_vif
&& csa_vif
->csa_active
,
3183 "Another CSA is already in progress")) {
3188 rcu_assign_pointer(mvm
->csa_vif
, vif
);
3190 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3191 if (WARN_ONCE(mvmvif
->csa_countdown
,
3192 "Previous CSA countdown didn't complete")) {
3205 mutex_unlock(&mvm
->mutex
);
3210 static void iwl_mvm_mac_flush(struct ieee80211_hw
*hw
,
3211 struct ieee80211_vif
*vif
, u32 queues
, bool drop
)
3213 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3214 struct iwl_mvm_vif
*mvmvif
;
3215 struct iwl_mvm_sta
*mvmsta
;
3216 struct ieee80211_sta
*sta
;
3220 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
)
3223 mutex_lock(&mvm
->mutex
);
3224 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3226 /* flush the AP-station and all TDLS peers */
3227 for (i
= 0; i
< IWL_MVM_STATION_COUNT
; i
++) {
3228 sta
= rcu_dereference_protected(mvm
->fw_id_to_mac_id
[i
],
3229 lockdep_is_held(&mvm
->mutex
));
3230 if (IS_ERR_OR_NULL(sta
))
3233 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
3234 if (mvmsta
->vif
!= vif
)
3237 /* make sure only TDLS peers or the AP are flushed */
3238 WARN_ON(i
!= mvmvif
->ap_sta_id
&& !sta
->tdls
);
3240 msk
|= mvmsta
->tfd_queue_msk
;
3244 if (iwl_mvm_flush_tx_path(mvm
, msk
, true))
3245 IWL_ERR(mvm
, "flush request fail\n");
3246 mutex_unlock(&mvm
->mutex
);
3248 mutex_unlock(&mvm
->mutex
);
3250 /* this can take a while, and we may need/want other operations
3251 * to succeed while doing this, so do it without the mutex held
3253 iwl_trans_wait_tx_queue_empty(mvm
->trans
, msk
);
3257 const struct ieee80211_ops iwl_mvm_hw_ops
= {
3258 .tx
= iwl_mvm_mac_tx
,
3259 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
3260 .start
= iwl_mvm_mac_start
,
3261 .reconfig_complete
= iwl_mvm_mac_reconfig_complete
,
3262 .stop
= iwl_mvm_mac_stop
,
3263 .add_interface
= iwl_mvm_mac_add_interface
,
3264 .remove_interface
= iwl_mvm_mac_remove_interface
,
3265 .config
= iwl_mvm_mac_config
,
3266 .prepare_multicast
= iwl_mvm_prepare_multicast
,
3267 .configure_filter
= iwl_mvm_configure_filter
,
3268 .bss_info_changed
= iwl_mvm_bss_info_changed
,
3269 .hw_scan
= iwl_mvm_mac_hw_scan
,
3270 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
3271 .sta_pre_rcu_remove
= iwl_mvm_sta_pre_rcu_remove
,
3272 .sta_state
= iwl_mvm_mac_sta_state
,
3273 .sta_notify
= iwl_mvm_mac_sta_notify
,
3274 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
3275 .release_buffered_frames
= iwl_mvm_mac_release_buffered_frames
,
3276 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
3277 .sta_rc_update
= iwl_mvm_sta_rc_update
,
3278 .conf_tx
= iwl_mvm_mac_conf_tx
,
3279 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
3280 .mgd_protect_tdls_discover
= iwl_mvm_mac_mgd_protect_tdls_discover
,
3281 .flush
= iwl_mvm_mac_flush
,
3282 .sched_scan_start
= iwl_mvm_mac_sched_scan_start
,
3283 .sched_scan_stop
= iwl_mvm_mac_sched_scan_stop
,
3284 .set_key
= iwl_mvm_mac_set_key
,
3285 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
3286 .remain_on_channel
= iwl_mvm_roc
,
3287 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
3288 .add_chanctx
= iwl_mvm_add_chanctx
,
3289 .remove_chanctx
= iwl_mvm_remove_chanctx
,
3290 .change_chanctx
= iwl_mvm_change_chanctx
,
3291 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
3292 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
3293 .switch_vif_chanctx
= iwl_mvm_switch_vif_chanctx
,
3295 .start_ap
= iwl_mvm_start_ap_ibss
,
3296 .stop_ap
= iwl_mvm_stop_ap_ibss
,
3297 .join_ibss
= iwl_mvm_start_ap_ibss
,
3298 .leave_ibss
= iwl_mvm_stop_ap_ibss
,
3300 .set_tim
= iwl_mvm_set_tim
,
3302 .pre_channel_switch
= iwl_mvm_pre_channel_switch
,
3304 .tdls_channel_switch
= iwl_mvm_tdls_channel_switch
,
3305 .tdls_cancel_channel_switch
= iwl_mvm_tdls_cancel_channel_switch
,
3306 .tdls_recv_channel_switch
= iwl_mvm_tdls_recv_channel_switch
,
3308 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd
)
3310 #ifdef CONFIG_PM_SLEEP
3312 .suspend
= iwl_mvm_suspend
,
3313 .resume
= iwl_mvm_resume
,
3314 .set_wakeup
= iwl_mvm_set_wakeup
,
3315 .set_rekey_data
= iwl_mvm_set_rekey_data
,
3316 #if IS_ENABLED(CONFIG_IPV6)
3317 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
3319 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,