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 <net/mac80211.h>
73 #include <net/ieee80211_radiotap.h>
76 #include "iwl-op-mode.h"
80 #include "time-event.h"
81 #include "iwl-eeprom-parse.h"
82 #include "fw-api-scan.h"
83 #include "iwl-phy-db.h"
85 #include "iwl-fw-error-dump.h"
88 static const struct ieee80211_iface_limit iwl_mvm_limits
[] = {
91 .types
= BIT(NL80211_IFTYPE_STATION
),
95 .types
= BIT(NL80211_IFTYPE_AP
) |
96 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
97 BIT(NL80211_IFTYPE_P2P_GO
),
101 .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
),
105 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations
[] = {
107 .num_different_channels
= 1,
109 .limits
= iwl_mvm_limits
,
110 .n_limits
= ARRAY_SIZE(iwl_mvm_limits
),
114 #ifdef CONFIG_PM_SLEEP
115 static const struct nl80211_wowlan_tcp_data_token_feature
116 iwl_mvm_wowlan_tcp_token_feature
= {
119 .bufsize
= IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS
,
122 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support
= {
123 .tok
= &iwl_mvm_wowlan_tcp_token_feature
,
124 .data_payload_max
= IWL_WOWLAN_TCP_MAX_PACKET_LEN
-
125 sizeof(struct ethhdr
) -
126 sizeof(struct iphdr
) -
127 sizeof(struct tcphdr
),
128 .data_interval_max
= 65535, /* __le16 in API */
129 .wake_payload_max
= IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN
-
130 sizeof(struct ethhdr
) -
131 sizeof(struct iphdr
) -
132 sizeof(struct tcphdr
),
137 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
139 * Use the reserved field to indicate magic values.
140 * these values will only be used internally by the driver,
141 * and won't make it to the fw (reserved will be 0).
142 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
143 * be the vif's ip address. in case there is not a single
144 * ip address (0, or more than 1), this attribute will
146 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
147 * the LSB bytes of the vif's mac address
150 BC_FILTER_MAGIC_NONE
= 0,
155 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters
[] = {
159 .frame_type
= BCAST_FILTER_FRAME_TYPE_ALL
,
162 /* frame type - arp, hw type - ethernet */
164 BCAST_FILTER_OFFSET_PAYLOAD_START
,
165 .offset
= sizeof(rfc1042_header
),
166 .val
= cpu_to_be32(0x08060001),
167 .mask
= cpu_to_be32(0xffffffff),
172 BCAST_FILTER_OFFSET_PAYLOAD_START
,
173 .offset
= sizeof(rfc1042_header
) + 2 +
174 sizeof(struct arphdr
) +
175 ETH_ALEN
+ sizeof(__be32
) +
177 .mask
= cpu_to_be32(0xffffffff),
178 /* mark it as special field */
179 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_IP
),
184 /* dhcp offer bcast */
186 .frame_type
= BCAST_FILTER_FRAME_TYPE_IPV4
,
189 /* udp dest port - 68 (bootp client)*/
190 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
191 .offset
= offsetof(struct udphdr
, dest
),
192 .val
= cpu_to_be32(0x00440000),
193 .mask
= cpu_to_be32(0xffff0000),
196 /* dhcp - lsb bytes of client hw address */
197 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
199 .mask
= cpu_to_be32(0xffffffff),
200 /* mark it as special field */
201 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_MAC
),
205 /* last filter must be empty */
210 void iwl_mvm_ref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
212 if (!iwl_mvm_is_d0i3_supported(mvm
))
215 IWL_DEBUG_RPM(mvm
, "Take mvm reference - type %d\n", ref_type
);
216 spin_lock_bh(&mvm
->refs_lock
);
217 mvm
->refs
[ref_type
]++;
218 spin_unlock_bh(&mvm
->refs_lock
);
219 iwl_trans_ref(mvm
->trans
);
222 void iwl_mvm_unref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
224 if (!iwl_mvm_is_d0i3_supported(mvm
))
227 IWL_DEBUG_RPM(mvm
, "Leave mvm reference - type %d\n", ref_type
);
228 spin_lock_bh(&mvm
->refs_lock
);
229 WARN_ON(!mvm
->refs
[ref_type
]--);
230 spin_unlock_bh(&mvm
->refs_lock
);
231 iwl_trans_unref(mvm
->trans
);
234 static void iwl_mvm_unref_all_except(struct iwl_mvm
*mvm
,
235 enum iwl_mvm_ref_type except_ref
)
239 if (!iwl_mvm_is_d0i3_supported(mvm
))
242 spin_lock_bh(&mvm
->refs_lock
);
243 for (i
= 0; i
< IWL_MVM_REF_COUNT
; i
++) {
244 if (except_ref
== i
|| !mvm
->refs
[i
])
247 IWL_DEBUG_RPM(mvm
, "Cleanup: remove mvm ref type %d (%d)\n",
249 for (j
= 0; j
< mvm
->refs
[i
]; j
++)
250 iwl_trans_unref(mvm
->trans
);
253 spin_unlock_bh(&mvm
->refs_lock
);
256 int iwl_mvm_ref_sync(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
258 iwl_mvm_ref(mvm
, ref_type
);
260 if (!wait_event_timeout(mvm
->d0i3_exit_waitq
,
261 !test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
),
264 iwl_mvm_unref(mvm
, ref_type
);
271 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm
*mvm
)
275 memset(mvm
->phy_ctxts
, 0, sizeof(mvm
->phy_ctxts
));
276 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
277 mvm
->phy_ctxts
[i
].id
= i
;
278 mvm
->phy_ctxts
[i
].ref
= 0;
282 int iwl_mvm_mac_setup_register(struct iwl_mvm
*mvm
)
284 struct ieee80211_hw
*hw
= mvm
->hw
;
287 /* Tell mac80211 our characteristics */
288 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
289 IEEE80211_HW_SPECTRUM_MGMT
|
290 IEEE80211_HW_REPORTS_TX_ACK_STATUS
|
291 IEEE80211_HW_QUEUE_CONTROL
|
292 IEEE80211_HW_WANT_MONITOR_VIF
|
293 IEEE80211_HW_SUPPORTS_PS
|
294 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
|
295 IEEE80211_HW_AMPDU_AGGREGATION
|
296 IEEE80211_HW_TIMING_BEACON_ONLY
|
297 IEEE80211_HW_CONNECTION_MONITOR
|
298 IEEE80211_HW_CHANCTX_STA_CSA
|
299 IEEE80211_HW_SUPPORTS_CLONED_SKBS
;
301 hw
->queues
= mvm
->first_agg_queue
;
302 hw
->offchannel_tx_hw_queue
= IWL_MVM_OFFCHANNEL_QUEUE
;
303 hw
->radiotap_mcs_details
|= IEEE80211_RADIOTAP_MCS_HAVE_FEC
|
304 IEEE80211_RADIOTAP_MCS_HAVE_STBC
;
305 hw
->radiotap_vht_details
|= IEEE80211_RADIOTAP_VHT_KNOWN_STBC
;
306 hw
->rate_control_algorithm
= "iwl-mvm-rs";
309 * Enable 11w if advertised by firmware and software crypto
310 * is not enabled (as the firmware will interpret some mgmt
311 * packets, so enabling it with software crypto isn't safe)
313 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_MFP
&&
314 !iwlwifi_mod_params
.sw_crypto
)
315 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
317 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT
&&
318 IWL_UCODE_API(mvm
->fw
->ucode_ver
) >= 9 &&
319 !iwlwifi_mod_params
.uapsd_disable
) {
320 hw
->flags
|= IEEE80211_HW_SUPPORTS_UAPSD
;
321 hw
->uapsd_queues
= IWL_MVM_UAPSD_QUEUES
;
322 hw
->uapsd_max_sp_len
= IWL_UAPSD_MAX_SP
;
325 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
)
326 hw
->flags
|= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS
;
328 hw
->sta_data_size
= sizeof(struct iwl_mvm_sta
);
329 hw
->vif_data_size
= sizeof(struct iwl_mvm_vif
);
330 hw
->chanctx_data_size
= sizeof(u16
);
332 hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
333 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
334 BIT(NL80211_IFTYPE_AP
) |
335 BIT(NL80211_IFTYPE_P2P_GO
) |
336 BIT(NL80211_IFTYPE_P2P_DEVICE
) |
337 BIT(NL80211_IFTYPE_ADHOC
);
339 hw
->wiphy
->flags
|= WIPHY_FLAG_IBSS_RSN
;
340 hw
->wiphy
->regulatory_flags
|= REGULATORY_CUSTOM_REG
|
341 REGULATORY_DISABLE_BEACON_HINTS
;
343 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_GO_UAPSD
)
344 hw
->wiphy
->flags
|= WIPHY_FLAG_AP_UAPSD
;
346 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_CSA_FLOW
)
347 hw
->wiphy
->flags
|= WIPHY_FLAG_HAS_CHANNEL_SWITCH
;
349 hw
->wiphy
->iface_combinations
= iwl_mvm_iface_combinations
;
350 hw
->wiphy
->n_iface_combinations
=
351 ARRAY_SIZE(iwl_mvm_iface_combinations
);
353 hw
->wiphy
->max_remain_on_channel_duration
= 10000;
354 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
356 /* Extract MAC address */
357 memcpy(mvm
->addresses
[0].addr
, mvm
->nvm_data
->hw_addr
, ETH_ALEN
);
358 hw
->wiphy
->addresses
= mvm
->addresses
;
359 hw
->wiphy
->n_addresses
= 1;
361 /* Extract additional MAC addresses if available */
362 num_mac
= (mvm
->nvm_data
->n_hw_addrs
> 1) ?
363 min(IWL_MVM_MAX_ADDRESSES
, mvm
->nvm_data
->n_hw_addrs
) : 1;
365 for (i
= 1; i
< num_mac
; i
++) {
366 memcpy(mvm
->addresses
[i
].addr
, mvm
->addresses
[i
-1].addr
,
368 mvm
->addresses
[i
].addr
[5]++;
369 hw
->wiphy
->n_addresses
++;
372 iwl_mvm_reset_phy_ctxts(mvm
);
374 hw
->wiphy
->max_scan_ie_len
= iwl_mvm_max_scan_ie_len(mvm
, false);
376 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
378 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
379 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
380 &mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
];
381 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
382 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
383 &mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
];
385 hw
->wiphy
->hw_version
= mvm
->trans
->hw_id
;
387 if (iwlmvm_mod_params
.power_scheme
!= IWL_POWER_SCHEME_CAM
)
388 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
390 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
392 if (IWL_UCODE_API(mvm
->fw
->ucode_ver
) >= 10) {
393 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_SCHED_SCAN
;
394 hw
->wiphy
->max_sched_scan_ssids
= PROBE_OPTION_MAX
;
395 hw
->wiphy
->max_match_sets
= IWL_SCAN_MAX_PROFILES
;
396 /* we create the 802.11 header and zero length SSID IE. */
397 hw
->wiphy
->max_sched_scan_ie_len
=
398 SCAN_OFFLOAD_PROBE_REQ_SIZE
- 24 - 2;
401 hw
->wiphy
->features
|= NL80211_FEATURE_P2P_GO_CTWIN
|
402 NL80211_FEATURE_LOW_PRIORITY_SCAN
|
403 NL80211_FEATURE_P2P_GO_OPPPS
|
404 NL80211_FEATURE_DYNAMIC_SMPS
|
405 NL80211_FEATURE_STATIC_SMPS
;
407 if (mvm
->fw
->ucode_capa
.capa
[0] &
408 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT
)
409 hw
->wiphy
->features
|= NL80211_FEATURE_TX_POWER_INSERTION
;
410 if (mvm
->fw
->ucode_capa
.capa
[0] &
411 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT
)
412 hw
->wiphy
->features
|= NL80211_FEATURE_QUIET
;
414 if (mvm
->fw
->ucode_capa
.capa
[0] &
415 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT
)
416 hw
->wiphy
->features
|=
417 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES
;
419 if (mvm
->fw
->ucode_capa
.capa
[0] &
420 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT
)
421 hw
->wiphy
->features
|= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES
;
423 mvm
->rts_threshold
= IEEE80211_MAX_RTS_THRESHOLD
;
425 /* currently FW API supports only one optional cipher scheme */
426 if (mvm
->fw
->cs
[0].cipher
) {
427 mvm
->hw
->n_cipher_schemes
= 1;
428 mvm
->hw
->cipher_schemes
= &mvm
->fw
->cs
[0];
431 #ifdef CONFIG_PM_SLEEP
432 if (iwl_mvm_is_d0i3_supported(mvm
) &&
433 device_can_wakeup(mvm
->trans
->dev
)) {
434 mvm
->wowlan
.flags
= WIPHY_WOWLAN_ANY
;
435 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
436 } else if (mvm
->fw
->img
[IWL_UCODE_WOWLAN
].sec
[0].len
&&
437 mvm
->trans
->ops
->d3_suspend
&&
438 mvm
->trans
->ops
->d3_resume
&&
439 device_can_wakeup(mvm
->trans
->dev
)) {
440 mvm
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
441 WIPHY_WOWLAN_DISCONNECT
|
442 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
443 WIPHY_WOWLAN_RFKILL_RELEASE
;
444 if (!iwlwifi_mod_params
.sw_crypto
)
445 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
446 WIPHY_WOWLAN_GTK_REKEY_FAILURE
|
447 WIPHY_WOWLAN_4WAY_HANDSHAKE
;
449 mvm
->wowlan
.n_patterns
= IWL_WOWLAN_MAX_PATTERNS
;
450 mvm
->wowlan
.pattern_min_len
= IWL_WOWLAN_MIN_PATTERN_LEN
;
451 mvm
->wowlan
.pattern_max_len
= IWL_WOWLAN_MAX_PATTERN_LEN
;
452 mvm
->wowlan
.tcp
= &iwl_mvm_wowlan_tcp_support
;
453 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
457 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
458 /* assign default bcast filtering configuration */
459 mvm
->bcast_filters
= iwl_mvm_default_bcast_filters
;
462 ret
= iwl_mvm_leds_init(mvm
);
466 ret
= ieee80211_register_hw(mvm
->hw
);
468 iwl_mvm_leds_exit(mvm
);
473 static bool iwl_mvm_defer_tx(struct iwl_mvm
*mvm
,
474 struct ieee80211_sta
*sta
,
477 struct iwl_mvm_sta
*mvmsta
;
481 * double check the IN_D0I3 flag both before and after
482 * taking the spinlock, in order to prevent taking
483 * the spinlock when not needed.
485 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
)))
488 spin_lock(&mvm
->d0i3_tx_lock
);
490 * testing the flag again ensures the skb dequeue
491 * loop (on d0i3 exit) hasn't run yet.
493 if (!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
))
496 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
497 if (mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
||
498 mvmsta
->sta_id
!= mvm
->d0i3_ap_sta_id
)
501 __skb_queue_tail(&mvm
->d0i3_tx
, skb
);
502 ieee80211_stop_queues(mvm
->hw
);
505 iwl_mvm_ref(mvm
, IWL_MVM_REF_TX
);
506 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX
);
510 spin_unlock(&mvm
->d0i3_tx_lock
);
514 static void iwl_mvm_mac_tx(struct ieee80211_hw
*hw
,
515 struct ieee80211_tx_control
*control
,
518 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
519 struct ieee80211_sta
*sta
= control
->sta
;
520 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
521 struct ieee80211_hdr
*hdr
= (void *)skb
->data
;
523 if (iwl_mvm_is_radio_killed(mvm
)) {
524 IWL_DEBUG_DROP(mvm
, "Dropping - RF/CT KILL\n");
528 if (IEEE80211_SKB_CB(skb
)->hw_queue
== IWL_MVM_OFFCHANNEL_QUEUE
&&
529 !test_bit(IWL_MVM_STATUS_ROC_RUNNING
, &mvm
->status
))
532 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
533 if (unlikely(info
->flags
& IEEE80211_TX_CTL_NO_PS_BUFFER
&&
534 ieee80211_is_mgmt(hdr
->frame_control
) &&
535 !ieee80211_is_deauth(hdr
->frame_control
) &&
536 !ieee80211_is_disassoc(hdr
->frame_control
) &&
537 !ieee80211_is_action(hdr
->frame_control
)))
541 if (iwl_mvm_defer_tx(mvm
, sta
, skb
))
543 if (iwl_mvm_tx_skb(mvm
, skb
, sta
))
548 if (iwl_mvm_tx_skb_non_sta(mvm
, skb
))
552 ieee80211_free_txskb(hw
, skb
);
555 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg
*cfg
)
557 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
)
562 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg
*cfg
)
564 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
)
566 if (iwlwifi_mod_params
.disable_11n
& IWL_ENABLE_HT_TXAGG
)
569 /* enabled by default */
573 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw
*hw
,
574 struct ieee80211_vif
*vif
,
575 enum ieee80211_ampdu_mlme_action action
,
576 struct ieee80211_sta
*sta
, u16 tid
,
577 u16
*ssn
, u8 buf_size
)
579 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
581 bool tx_agg_ref
= false;
583 IWL_DEBUG_HT(mvm
, "A-MPDU action on addr %pM tid %d: action %d\n",
584 sta
->addr
, tid
, action
);
586 if (!(mvm
->nvm_data
->sku_cap_11n_enable
))
589 /* return from D0i3 before starting a new Tx aggregation */
591 case IEEE80211_AMPDU_TX_START
:
592 case IEEE80211_AMPDU_TX_STOP_CONT
:
593 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
594 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
595 case IEEE80211_AMPDU_TX_OPERATIONAL
:
597 * for tx start, wait synchronously until D0i3 exit to
598 * get the correct sequence number for the tid.
599 * additionally, some other ampdu actions use direct
600 * target access, which is not handled automatically
601 * by the trans layer (unlike commands), so wait for
602 * d0i3 exit in these cases as well.
604 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_TX_AGG
);
614 mutex_lock(&mvm
->mutex
);
617 case IEEE80211_AMPDU_RX_START
:
618 if (!iwl_enable_rx_ampdu(mvm
->cfg
)) {
622 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, *ssn
, true);
624 case IEEE80211_AMPDU_RX_STOP
:
625 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, 0, false);
627 case IEEE80211_AMPDU_TX_START
:
628 if (!iwl_enable_tx_ampdu(mvm
->cfg
)) {
632 ret
= iwl_mvm_sta_tx_agg_start(mvm
, vif
, sta
, tid
, ssn
);
634 case IEEE80211_AMPDU_TX_STOP_CONT
:
635 ret
= iwl_mvm_sta_tx_agg_stop(mvm
, vif
, sta
, tid
);
637 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
638 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
639 ret
= iwl_mvm_sta_tx_agg_flush(mvm
, vif
, sta
, tid
);
641 case IEEE80211_AMPDU_TX_OPERATIONAL
:
642 ret
= iwl_mvm_sta_tx_agg_oper(mvm
, vif
, sta
, tid
, buf_size
);
649 mutex_unlock(&mvm
->mutex
);
652 * If the tid is marked as started, we won't use it for offloaded
653 * traffic on the next D0i3 entry. It's safe to unref.
656 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX_AGG
);
661 static void iwl_mvm_cleanup_iterator(void *data
, u8
*mac
,
662 struct ieee80211_vif
*vif
)
664 struct iwl_mvm
*mvm
= data
;
665 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
667 mvmvif
->uploaded
= false;
668 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
670 /* does this make sense at all? */
673 spin_lock_bh(&mvm
->time_event_lock
);
674 iwl_mvm_te_clear_data(mvm
, &mvmvif
->time_event_data
);
675 spin_unlock_bh(&mvm
->time_event_lock
);
677 mvmvif
->phy_ctxt
= NULL
;
678 memset(&mvmvif
->bf_data
, 0, sizeof(mvmvif
->bf_data
));
681 #ifdef CONFIG_IWLWIFI_DEBUGFS
682 void iwl_mvm_fw_error_dump(struct iwl_mvm
*mvm
)
684 static char *env
[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL
};
685 struct iwl_fw_error_dump_file
*dump_file
;
686 struct iwl_fw_error_dump_data
*dump_data
;
687 struct iwl_fw_error_dump_info
*dump_info
;
688 struct iwl_mvm_dump_ptrs
*fw_error_dump
;
689 const struct fw_img
*img
;
690 u32 sram_len
, sram_ofs
;
691 u32 file_len
, rxf_len
;
695 lockdep_assert_held(&mvm
->mutex
);
697 if (mvm
->fw_error_dump
)
700 fw_error_dump
= kzalloc(sizeof(*mvm
->fw_error_dump
), GFP_KERNEL
);
704 img
= &mvm
->fw
->img
[mvm
->cur_ucode
];
705 sram_ofs
= img
->sec
[IWL_UCODE_SECTION_DATA
].offset
;
706 sram_len
= img
->sec
[IWL_UCODE_SECTION_DATA
].len
;
708 /* reading buffer size */
709 reg_val
= iwl_trans_read_prph(mvm
->trans
, RXF_SIZE_ADDR
);
710 rxf_len
= (reg_val
& RXF_SIZE_BYTE_CNT_MSK
) >> RXF_SIZE_BYTE_CND_POS
;
712 /* the register holds the value divided by 128 */
713 rxf_len
= rxf_len
<< 7;
715 file_len
= sizeof(*dump_file
) +
716 sizeof(*dump_data
) * 3 +
721 dump_file
= vzalloc(file_len
);
723 kfree(fw_error_dump
);
727 fw_error_dump
->op_mode_ptr
= dump_file
;
729 dump_file
->barker
= cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER
);
730 dump_data
= (void *)dump_file
->data
;
732 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO
);
733 dump_data
->len
= cpu_to_le32(sizeof(*dump_info
));
734 dump_info
= (void *) dump_data
->data
;
735 dump_info
->device_family
=
736 mvm
->cfg
->device_family
== IWL_DEVICE_FAMILY_7000
?
737 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7
) :
738 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8
);
739 memcpy(dump_info
->fw_human_readable
, mvm
->fw
->human_readable
,
740 sizeof(dump_info
->fw_human_readable
));
741 strncpy(dump_info
->dev_human_readable
, mvm
->cfg
->name
,
742 sizeof(dump_info
->dev_human_readable
));
743 strncpy(dump_info
->bus_human_readable
, mvm
->dev
->bus
->name
,
744 sizeof(dump_info
->bus_human_readable
));
746 dump_data
= iwl_fw_error_next_data(dump_data
);
747 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_RXF
);
748 dump_data
->len
= cpu_to_le32(rxf_len
);
750 if (iwl_trans_grab_nic_access(mvm
->trans
, false, &flags
)) {
751 u32
*rxf
= (void *)dump_data
->data
;
754 for (i
= 0; i
< (rxf_len
/ sizeof(u32
)); i
++) {
755 iwl_trans_write_prph(mvm
->trans
,
756 RXF_LD_FENCE_OFFSET_ADDR
,
758 rxf
[i
] = iwl_trans_read_prph(mvm
->trans
,
759 RXF_FIFO_RD_FENCE_ADDR
);
761 iwl_trans_release_nic_access(mvm
->trans
, &flags
);
764 dump_data
= iwl_fw_error_next_data(dump_data
);
765 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM
);
766 dump_data
->len
= cpu_to_le32(sram_len
);
767 iwl_trans_read_mem_bytes(mvm
->trans
, sram_ofs
, dump_data
->data
,
770 fw_error_dump
->trans_ptr
= iwl_trans_dump_data(mvm
->trans
);
771 fw_error_dump
->op_mode_len
= file_len
;
772 if (fw_error_dump
->trans_ptr
)
773 file_len
+= fw_error_dump
->trans_ptr
->len
;
774 dump_file
->file_len
= cpu_to_le32(file_len
);
775 mvm
->fw_error_dump
= fw_error_dump
;
777 /* notify the userspace about the error we had */
778 kobject_uevent_env(&mvm
->hw
->wiphy
->dev
.kobj
, KOBJ_CHANGE
, env
);
782 static void iwl_mvm_restart_cleanup(struct iwl_mvm
*mvm
)
784 iwl_mvm_fw_error_dump(mvm
);
786 iwl_trans_stop_device(mvm
->trans
);
788 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
789 mvm
->ps_disabled
= false;
791 /* just in case one was running */
792 ieee80211_remain_on_channel_expired(mvm
->hw
);
794 ieee80211_iterate_active_interfaces_atomic(
795 mvm
->hw
, IEEE80211_IFACE_ITER_RESUME_ALL
,
796 iwl_mvm_cleanup_iterator
, mvm
);
798 mvm
->p2p_device_vif
= NULL
;
799 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
801 iwl_mvm_reset_phy_ctxts(mvm
);
802 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
803 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
804 memset(&mvm
->last_bt_notif
, 0, sizeof(mvm
->last_bt_notif
));
805 memset(&mvm
->last_bt_notif_old
, 0, sizeof(mvm
->last_bt_notif_old
));
806 memset(&mvm
->last_bt_ci_cmd
, 0, sizeof(mvm
->last_bt_ci_cmd
));
807 memset(&mvm
->last_bt_ci_cmd_old
, 0, sizeof(mvm
->last_bt_ci_cmd_old
));
808 memset(&mvm
->bt_ack_kill_msk
, 0, sizeof(mvm
->bt_ack_kill_msk
));
809 memset(&mvm
->bt_cts_kill_msk
, 0, sizeof(mvm
->bt_cts_kill_msk
));
811 ieee80211_wake_queues(mvm
->hw
);
813 /* cleanup all stale references (scan, roc), but keep the
814 * ucode_down ref until reconfig is complete */
815 iwl_mvm_unref_all_except(mvm
, IWL_MVM_REF_UCODE_DOWN
);
817 /* clear any stale d0i3 state */
818 clear_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
);
821 mvm
->rx_ba_sessions
= 0;
824 int __iwl_mvm_mac_start(struct iwl_mvm
*mvm
)
828 lockdep_assert_held(&mvm
->mutex
);
830 /* Clean up some internal and mac80211 state on restart */
831 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
832 iwl_mvm_restart_cleanup(mvm
);
834 ret
= iwl_mvm_up(mvm
);
836 if (ret
&& test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
837 /* Something went wrong - we need to finish some cleanup
838 * that normally iwl_mvm_mac_restart_complete() below
841 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
842 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
848 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
850 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
853 mutex_lock(&mvm
->mutex
);
854 ret
= __iwl_mvm_mac_start(mvm
);
855 mutex_unlock(&mvm
->mutex
);
860 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw
*hw
)
862 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
865 mutex_lock(&mvm
->mutex
);
867 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
868 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
869 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
871 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
874 /* allow transport/FW low power modes */
875 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
877 mutex_unlock(&mvm
->mutex
);
880 void __iwl_mvm_mac_stop(struct iwl_mvm
*mvm
)
882 lockdep_assert_held(&mvm
->mutex
);
884 /* disallow low power states when the FW is down */
885 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
887 /* async_handlers_wk is now blocked */
890 * The work item could be running or queued if the
891 * ROC time event stops just as we get here.
893 cancel_work_sync(&mvm
->roc_done_wk
);
895 iwl_trans_stop_device(mvm
->trans
);
897 iwl_mvm_async_handlers_purge(mvm
);
898 /* async_handlers_list is empty and will stay empty: HW is stopped */
900 /* the fw is stopped, the aux sta is dead: clean up driver state */
901 iwl_mvm_del_aux_sta(mvm
);
903 mvm
->ucode_loaded
= false;
906 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
908 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
910 flush_work(&mvm
->d0i3_exit_work
);
911 flush_work(&mvm
->async_handlers_wk
);
912 flush_work(&mvm
->fw_error_dump_wk
);
914 mutex_lock(&mvm
->mutex
);
915 __iwl_mvm_mac_stop(mvm
);
916 mutex_unlock(&mvm
->mutex
);
919 * The worker might have been waiting for the mutex, let it run and
920 * discover that its list is now empty.
922 cancel_work_sync(&mvm
->async_handlers_wk
);
925 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
929 lockdep_assert_held(&mvm
->mutex
);
931 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
932 if (!mvm
->phy_ctxts
[i
].ref
)
933 return &mvm
->phy_ctxts
[i
];
935 IWL_ERR(mvm
, "No available PHY context\n");
939 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
942 /* FW is in charge of regulatory enforcement */
943 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd
= {
944 .mac_context_id
= iwl_mvm_vif_from_mac80211(vif
)->id
,
945 .pwr_restriction
= cpu_to_le16(tx_power
),
948 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, 0,
949 sizeof(reduce_txpwr_cmd
),
953 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
954 struct ieee80211_vif
*vif
)
956 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
957 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
961 * make sure D0i3 exit is completed, otherwise a target access
962 * during tx queue configuration could be done when still in
965 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_ADD_IF
);
970 * Not much to do here. The stack will not allow interface
971 * types or combinations that we didn't advertise, so we
972 * don't really have to check the types.
975 mutex_lock(&mvm
->mutex
);
977 /* Allocate resources for the MAC context, and add it to the fw */
978 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
982 /* Counting number of interfaces is needed for legacy PM */
983 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
987 * The AP binding flow can be done only after the beacon
988 * template is configured (which happens only in the mac80211
989 * start_ap() flow), and adding the broadcast station can happen
990 * only after the binding.
991 * In addition, since modifying the MAC before adding a bcast
992 * station is not allowed by the FW, delay the adding of MAC context to
993 * the point where we can also add the bcast station.
994 * In short: there's not much we can do at this point, other than
995 * allocating resources :)
997 if (vif
->type
== NL80211_IFTYPE_AP
||
998 vif
->type
== NL80211_IFTYPE_ADHOC
) {
999 ret
= iwl_mvm_alloc_bcast_sta(mvm
, vif
);
1001 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
1005 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1009 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1013 ret
= iwl_mvm_power_update_mac(mvm
);
1017 /* beacon filtering */
1018 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
1020 goto out_remove_mac
;
1022 if (!mvm
->bf_allowed_vif
&&
1023 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
) {
1024 mvm
->bf_allowed_vif
= mvmvif
;
1025 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
1026 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
1030 * P2P_DEVICE interface does not have a channel context assigned to it,
1031 * so a dedicated PHY context is allocated to it and the corresponding
1032 * MAC context is bound to it at this stage.
1034 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1036 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1037 if (!mvmvif
->phy_ctxt
) {
1042 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1043 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1047 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
);
1051 /* Save a pointer to p2p device vif, so it can later be used to
1052 * update the p2p device MAC when a GO is started/stopped */
1053 mvm
->p2p_device_vif
= vif
;
1056 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1060 iwl_mvm_binding_remove_vif(mvm
, vif
);
1062 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1064 if (mvm
->bf_allowed_vif
== mvmvif
) {
1065 mvm
->bf_allowed_vif
= NULL
;
1066 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1067 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1070 mvmvif
->phy_ctxt
= NULL
;
1071 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1073 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1076 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1078 mutex_unlock(&mvm
->mutex
);
1080 iwl_mvm_unref(mvm
, IWL_MVM_REF_ADD_IF
);
1085 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
1086 struct ieee80211_vif
*vif
)
1088 u32 tfd_msk
= iwl_mvm_mac_get_queues_mask(mvm
, vif
);
1091 mutex_lock(&mvm
->mutex
);
1092 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, true);
1093 mutex_unlock(&mvm
->mutex
);
1096 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1098 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1099 * We assume here that all the packets sent to the OFFCHANNEL
1100 * queue are sent in ROC session.
1102 flush_work(&mvm
->roc_done_wk
);
1105 * By now, all the AC queues are empty. The AGG queues are
1106 * empty too. We already got all the Tx responses for all the
1107 * packets in the queues. The drain work can have been
1108 * triggered. Flush it.
1110 flush_work(&mvm
->sta_drained_wk
);
1114 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
1115 struct ieee80211_vif
*vif
)
1117 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1118 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1120 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1122 mutex_lock(&mvm
->mutex
);
1124 if (mvm
->bf_allowed_vif
== mvmvif
) {
1125 mvm
->bf_allowed_vif
= NULL
;
1126 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1127 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1130 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
1133 * For AP/GO interface, the tear down of the resources allocated to the
1134 * interface is be handled as part of the stop_ap flow.
1136 if (vif
->type
== NL80211_IFTYPE_AP
||
1137 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1138 #ifdef CONFIG_NL80211_TESTMODE
1139 if (vif
== mvm
->noa_vif
) {
1140 mvm
->noa_vif
= NULL
;
1141 mvm
->noa_duration
= 0;
1144 iwl_mvm_dealloc_bcast_sta(mvm
, vif
);
1148 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1149 mvm
->p2p_device_vif
= NULL
;
1150 iwl_mvm_rm_bcast_sta(mvm
, vif
);
1151 iwl_mvm_binding_remove_vif(mvm
, vif
);
1152 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1153 mvmvif
->phy_ctxt
= NULL
;
1156 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1159 iwl_mvm_power_update_mac(mvm
);
1160 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1163 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1164 mutex_unlock(&mvm
->mutex
);
1167 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
1172 struct iwl_mvm_mc_iter_data
{
1173 struct iwl_mvm
*mvm
;
1177 static void iwl_mvm_mc_iface_iterator(void *_data
, u8
*mac
,
1178 struct ieee80211_vif
*vif
)
1180 struct iwl_mvm_mc_iter_data
*data
= _data
;
1181 struct iwl_mvm
*mvm
= data
->mvm
;
1182 struct iwl_mcast_filter_cmd
*cmd
= mvm
->mcast_filter_cmd
;
1185 /* if we don't have free ports, mcast frames will be dropped */
1186 if (WARN_ON_ONCE(data
->port_id
>= MAX_PORT_ID_NUM
))
1189 if (vif
->type
!= NL80211_IFTYPE_STATION
||
1190 !vif
->bss_conf
.assoc
)
1193 cmd
->port_id
= data
->port_id
++;
1194 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
1195 len
= roundup(sizeof(*cmd
) + cmd
->count
* ETH_ALEN
, 4);
1197 ret
= iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_ASYNC
, len
, cmd
);
1199 IWL_ERR(mvm
, "mcast filter cmd error. ret=%d\n", ret
);
1202 static void iwl_mvm_recalc_multicast(struct iwl_mvm
*mvm
)
1204 struct iwl_mvm_mc_iter_data iter_data
= {
1208 lockdep_assert_held(&mvm
->mutex
);
1210 if (WARN_ON_ONCE(!mvm
->mcast_filter_cmd
))
1213 ieee80211_iterate_active_interfaces_atomic(
1214 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1215 iwl_mvm_mc_iface_iterator
, &iter_data
);
1218 static u64
iwl_mvm_prepare_multicast(struct ieee80211_hw
*hw
,
1219 struct netdev_hw_addr_list
*mc_list
)
1221 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1222 struct iwl_mcast_filter_cmd
*cmd
;
1223 struct netdev_hw_addr
*addr
;
1228 addr_count
= netdev_hw_addr_list_count(mc_list
);
1229 pass_all
= addr_count
> MAX_MCAST_FILTERING_ADDRESSES
||
1230 IWL_MVM_FW_MCAST_FILTER_PASS_ALL
;
1234 len
= roundup(sizeof(*cmd
) + addr_count
* ETH_ALEN
, 4);
1235 cmd
= kzalloc(len
, GFP_ATOMIC
);
1241 return (u64
)(unsigned long)cmd
;
1244 netdev_hw_addr_list_for_each(addr
, mc_list
) {
1245 IWL_DEBUG_MAC80211(mvm
, "mcast addr (%d): %pM\n",
1246 cmd
->count
, addr
->addr
);
1247 memcpy(&cmd
->addr_list
[cmd
->count
* ETH_ALEN
],
1248 addr
->addr
, ETH_ALEN
);
1252 return (u64
)(unsigned long)cmd
;
1255 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
1256 unsigned int changed_flags
,
1257 unsigned int *total_flags
,
1260 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1261 struct iwl_mcast_filter_cmd
*cmd
= (void *)(unsigned long)multicast
;
1263 mutex_lock(&mvm
->mutex
);
1265 /* replace previous configuration */
1266 kfree(mvm
->mcast_filter_cmd
);
1267 mvm
->mcast_filter_cmd
= cmd
;
1272 iwl_mvm_recalc_multicast(mvm
);
1274 mutex_unlock(&mvm
->mutex
);
1278 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1279 struct iwl_bcast_iter_data
{
1280 struct iwl_mvm
*mvm
;
1281 struct iwl_bcast_filter_cmd
*cmd
;
1286 iwl_mvm_set_bcast_filter(struct ieee80211_vif
*vif
,
1287 const struct iwl_fw_bcast_filter
*in_filter
,
1288 struct iwl_fw_bcast_filter
*out_filter
)
1290 struct iwl_fw_bcast_filter_attr
*attr
;
1293 memcpy(out_filter
, in_filter
, sizeof(*out_filter
));
1295 for (i
= 0; i
< ARRAY_SIZE(out_filter
->attrs
); i
++) {
1296 attr
= &out_filter
->attrs
[i
];
1301 switch (attr
->reserved1
) {
1302 case cpu_to_le16(BC_FILTER_MAGIC_IP
):
1303 if (vif
->bss_conf
.arp_addr_cnt
!= 1) {
1308 attr
->val
= vif
->bss_conf
.arp_addr_list
[0];
1310 case cpu_to_le16(BC_FILTER_MAGIC_MAC
):
1311 attr
->val
= *(__be32
*)&vif
->addr
[2];
1316 attr
->reserved1
= 0;
1317 out_filter
->num_attrs
++;
1321 static void iwl_mvm_bcast_filter_iterator(void *_data
, u8
*mac
,
1322 struct ieee80211_vif
*vif
)
1324 struct iwl_bcast_iter_data
*data
= _data
;
1325 struct iwl_mvm
*mvm
= data
->mvm
;
1326 struct iwl_bcast_filter_cmd
*cmd
= data
->cmd
;
1327 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1328 struct iwl_fw_bcast_mac
*bcast_mac
;
1331 if (WARN_ON(mvmvif
->id
>= ARRAY_SIZE(cmd
->macs
)))
1334 bcast_mac
= &cmd
->macs
[mvmvif
->id
];
1337 * enable filtering only for associated stations, but not for P2P
1340 if (vif
->type
!= NL80211_IFTYPE_STATION
|| vif
->p2p
||
1341 !vif
->bss_conf
.assoc
)
1344 bcast_mac
->default_discard
= 1;
1346 /* copy all configured filters */
1347 for (i
= 0; mvm
->bcast_filters
[i
].attrs
[0].mask
; i
++) {
1349 * Make sure we don't exceed our filters limit.
1350 * if there is still a valid filter to be configured,
1351 * be on the safe side and just allow bcast for this mac.
1353 if (WARN_ON_ONCE(data
->current_filter
>=
1354 ARRAY_SIZE(cmd
->filters
))) {
1355 bcast_mac
->default_discard
= 0;
1356 bcast_mac
->attached_filters
= 0;
1360 iwl_mvm_set_bcast_filter(vif
,
1361 &mvm
->bcast_filters
[i
],
1362 &cmd
->filters
[data
->current_filter
]);
1364 /* skip current filter if it contains no attributes */
1365 if (!cmd
->filters
[data
->current_filter
].num_attrs
)
1368 /* attach the filter to current mac */
1369 bcast_mac
->attached_filters
|=
1370 cpu_to_le16(BIT(data
->current_filter
));
1372 data
->current_filter
++;
1376 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm
*mvm
,
1377 struct iwl_bcast_filter_cmd
*cmd
)
1379 struct iwl_bcast_iter_data iter_data
= {
1384 memset(cmd
, 0, sizeof(*cmd
));
1385 cmd
->max_bcast_filters
= ARRAY_SIZE(cmd
->filters
);
1386 cmd
->max_macs
= ARRAY_SIZE(cmd
->macs
);
1388 #ifdef CONFIG_IWLWIFI_DEBUGFS
1389 /* use debugfs filters/macs if override is configured */
1390 if (mvm
->dbgfs_bcast_filtering
.override
) {
1391 memcpy(cmd
->filters
, &mvm
->dbgfs_bcast_filtering
.cmd
.filters
,
1392 sizeof(cmd
->filters
));
1393 memcpy(cmd
->macs
, &mvm
->dbgfs_bcast_filtering
.cmd
.macs
,
1399 /* if no filters are configured, do nothing */
1400 if (!mvm
->bcast_filters
)
1403 /* configure and attach these filters for each associated sta vif */
1404 ieee80211_iterate_active_interfaces(
1405 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1406 iwl_mvm_bcast_filter_iterator
, &iter_data
);
1410 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1411 struct ieee80211_vif
*vif
)
1413 struct iwl_bcast_filter_cmd cmd
;
1415 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BCAST_FILTERING
))
1418 if (!iwl_mvm_bcast_filter_build_cmd(mvm
, &cmd
))
1421 return iwl_mvm_send_cmd_pdu(mvm
, BCAST_FILTER_CMD
, 0,
1425 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1426 struct ieee80211_vif
*vif
)
1432 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
1433 struct ieee80211_vif
*vif
,
1434 struct ieee80211_bss_conf
*bss_conf
,
1437 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1441 * Re-calculate the tsf id, as the master-slave relations depend on the
1442 * beacon interval, which was not known when the station interface was
1445 if (changes
& BSS_CHANGED_ASSOC
&& bss_conf
->assoc
)
1446 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1449 * If we're not associated yet, take the (new) BSSID before associating
1450 * so the firmware knows. If we're already associated, then use the old
1451 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1452 * branch for disassociation below.
1454 if (changes
& BSS_CHANGED_BSSID
&& !mvmvif
->associated
)
1455 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1457 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, mvmvif
->bssid
);
1459 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1461 /* after sending it once, adopt mac80211 data */
1462 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1463 mvmvif
->associated
= bss_conf
->assoc
;
1465 if (changes
& BSS_CHANGED_ASSOC
) {
1466 if (bss_conf
->assoc
) {
1467 /* add quota for this interface */
1468 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1470 IWL_ERR(mvm
, "failed to update quotas\n");
1474 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
1477 * If we're restarting then the firmware will
1478 * obviously have lost synchronisation with
1479 * the AP. It will attempt to synchronise by
1480 * itself, but we can make it more reliable by
1481 * scheduling a session protection time event.
1483 * The firmware needs to receive a beacon to
1484 * catch up with synchronisation, use 110% of
1485 * the beacon interval.
1487 * Set a large maximum delay to allow for more
1488 * than a single interface.
1490 u32 dur
= (11 * vif
->bss_conf
.beacon_int
) / 10;
1491 iwl_mvm_protect_session(mvm
, vif
, dur
, dur
,
1495 iwl_mvm_sf_update(mvm
, vif
, false);
1496 iwl_mvm_power_vif_assoc(mvm
, vif
);
1498 iwl_mvm_ref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1499 iwl_mvm_update_smps(mvm
, vif
,
1500 IWL_MVM_SMPS_REQ_PROT
,
1501 IEEE80211_SMPS_DYNAMIC
);
1503 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_STATION_COUNT
) {
1505 * If update fails - SF might be running in associated
1506 * mode while disassociated - which is forbidden.
1508 WARN_ONCE(iwl_mvm_sf_update(mvm
, vif
, false),
1509 "Failed to update SF upon disassociation\n");
1511 /* remove AP station now that the MAC is unassoc */
1512 ret
= iwl_mvm_rm_sta_id(mvm
, vif
, mvmvif
->ap_sta_id
);
1514 IWL_ERR(mvm
, "failed to remove AP station\n");
1516 if (mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
1517 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1518 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
1519 /* remove quota for this interface */
1520 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1522 IWL_ERR(mvm
, "failed to update quotas\n");
1525 iwl_mvm_unref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1527 /* this will take the cleared BSSID from bss_conf */
1528 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
1531 "failed to update MAC %pM (clear after unassoc)\n",
1535 iwl_mvm_recalc_multicast(mvm
);
1536 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1538 /* reset rssi values */
1539 mvmvif
->bf_data
.ave_beacon_signal
= 0;
1541 iwl_mvm_bt_coex_vif_change(mvm
);
1542 iwl_mvm_update_smps(mvm
, vif
, IWL_MVM_SMPS_REQ_TT
,
1543 IEEE80211_SMPS_AUTOMATIC
);
1544 } else if (changes
& BSS_CHANGED_BEACON_INFO
) {
1546 * We received a beacon _after_ association so
1547 * remove the session protection.
1549 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1550 &mvmvif
->time_event_data
);
1553 if (changes
& BSS_CHANGED_BEACON_INFO
) {
1554 iwl_mvm_sf_update(mvm
, vif
, false);
1555 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
1558 if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_P2P_PS
| BSS_CHANGED_QOS
)) {
1559 ret
= iwl_mvm_power_update_mac(mvm
);
1561 IWL_ERR(mvm
, "failed to update power mode\n");
1564 if (changes
& BSS_CHANGED_TXPOWER
) {
1565 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
1567 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
1570 if (changes
& BSS_CHANGED_CQM
) {
1571 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed\n");
1572 /* reset cqm events tracking */
1573 mvmvif
->bf_data
.last_cqm_event
= 0;
1574 if (mvmvif
->bf_data
.bf_enabled
) {
1575 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
1578 "failed to update CQM thresholds\n");
1582 if (changes
& BSS_CHANGED_ARP_FILTER
) {
1583 IWL_DEBUG_MAC80211(mvm
, "arp filter changed\n");
1584 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1588 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw
*hw
,
1589 struct ieee80211_vif
*vif
)
1591 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1592 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1596 * iwl_mvm_mac_ctxt_add() might read directly from the device
1597 * (the system time), so make sure it is available.
1599 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_START_AP
);
1603 mutex_lock(&mvm
->mutex
);
1605 /* Send the beacon template */
1606 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
1611 * Re-calculate the tsf id, as the master-slave relations depend on the
1612 * beacon interval, which was not known when the AP interface was added.
1614 if (vif
->type
== NL80211_IFTYPE_AP
)
1615 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1617 /* Add the mac context */
1618 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1622 /* Perform the binding */
1623 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1627 /* Send the bcast station. At this stage the TBTT and DTIM time events
1628 * are added and applied to the scheduler */
1629 ret
= iwl_mvm_send_add_bcast_sta(mvm
, vif
);
1633 /* must be set before quota calculations */
1634 mvmvif
->ap_ibss_active
= true;
1636 /* power updated needs to be done before quotas */
1637 iwl_mvm_power_update_mac(mvm
);
1639 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1641 goto out_quota_failed
;
1643 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1644 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1645 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
1647 iwl_mvm_ref(mvm
, IWL_MVM_REF_AP_IBSS
);
1649 iwl_mvm_bt_coex_vif_change(mvm
);
1651 /* we don't support TDLS during DCM */
1652 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
1653 iwl_mvm_teardown_tdls_peers(mvm
);
1655 mutex_unlock(&mvm
->mutex
);
1659 iwl_mvm_power_update_mac(mvm
);
1660 mvmvif
->ap_ibss_active
= false;
1661 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
1663 iwl_mvm_binding_remove_vif(mvm
, vif
);
1665 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1667 mutex_unlock(&mvm
->mutex
);
1668 iwl_mvm_unref(mvm
, IWL_MVM_REF_START_AP
);
1672 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw
*hw
,
1673 struct ieee80211_vif
*vif
)
1675 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1676 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1678 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1680 mutex_lock(&mvm
->mutex
);
1682 /* Handle AP stop while in CSA */
1683 if (rcu_access_pointer(mvm
->csa_vif
) == vif
) {
1684 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1685 &mvmvif
->time_event_data
);
1686 RCU_INIT_POINTER(mvm
->csa_vif
, NULL
);
1689 if (rcu_access_pointer(mvm
->csa_tx_blocked_vif
) == vif
) {
1690 RCU_INIT_POINTER(mvm
->csa_tx_blocked_vif
, NULL
);
1691 mvm
->csa_tx_block_bcn_timeout
= 0;
1694 mvmvif
->ap_ibss_active
= false;
1695 mvm
->ap_last_beacon_gp2
= 0;
1697 iwl_mvm_bt_coex_vif_change(mvm
);
1699 iwl_mvm_unref(mvm
, IWL_MVM_REF_AP_IBSS
);
1701 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1702 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1703 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
1705 iwl_mvm_update_quotas(mvm
, NULL
);
1706 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
1707 iwl_mvm_binding_remove_vif(mvm
, vif
);
1709 iwl_mvm_power_update_mac(mvm
);
1711 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1713 mutex_unlock(&mvm
->mutex
);
1717 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm
*mvm
,
1718 struct ieee80211_vif
*vif
,
1719 struct ieee80211_bss_conf
*bss_conf
,
1722 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1724 /* Changes will be applied when the AP/IBSS is started */
1725 if (!mvmvif
->ap_ibss_active
)
1728 if (changes
& (BSS_CHANGED_ERP_CTS_PROT
| BSS_CHANGED_HT
|
1729 BSS_CHANGED_BANDWIDTH
| BSS_CHANGED_QOS
) &&
1730 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
))
1731 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1733 /* Need to send a new beacon template to the FW */
1734 if (changes
& BSS_CHANGED_BEACON
&&
1735 iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
1736 IWL_WARN(mvm
, "Failed updating beacon data\n");
1739 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
1740 struct ieee80211_vif
*vif
,
1741 struct ieee80211_bss_conf
*bss_conf
,
1744 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1747 * iwl_mvm_bss_info_changed_station() might call
1748 * iwl_mvm_protect_session(), which reads directly from
1749 * the device (the system time), so make sure it is available.
1751 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_BSS_CHANGED
))
1754 mutex_lock(&mvm
->mutex
);
1756 if (changes
& BSS_CHANGED_IDLE
&& !bss_conf
->idle
)
1757 iwl_mvm_scan_offload_stop(mvm
, true);
1759 switch (vif
->type
) {
1760 case NL80211_IFTYPE_STATION
:
1761 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
1763 case NL80211_IFTYPE_AP
:
1764 case NL80211_IFTYPE_ADHOC
:
1765 iwl_mvm_bss_info_changed_ap_ibss(mvm
, vif
, bss_conf
, changes
);
1768 /* shouldn't happen */
1772 mutex_unlock(&mvm
->mutex
);
1773 iwl_mvm_unref(mvm
, IWL_MVM_REF_BSS_CHANGED
);
1776 static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm
*mvm
,
1777 enum iwl_scan_status scan_type
)
1780 bool wait_for_handlers
= false;
1782 mutex_lock(&mvm
->mutex
);
1784 if (mvm
->scan_status
!= scan_type
) {
1786 /* make sure there are no pending notifications */
1787 wait_for_handlers
= true;
1791 switch (scan_type
) {
1792 case IWL_MVM_SCAN_SCHED
:
1793 ret
= iwl_mvm_scan_offload_stop(mvm
, true);
1795 case IWL_MVM_SCAN_OS
:
1796 ret
= iwl_mvm_cancel_scan(mvm
);
1798 case IWL_MVM_SCAN_NONE
:
1807 wait_for_handlers
= true;
1809 mutex_unlock(&mvm
->mutex
);
1811 /* make sure we consume the completion notification */
1812 if (wait_for_handlers
)
1813 iwl_mvm_wait_for_async_handlers(mvm
);
1817 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
1818 struct ieee80211_vif
*vif
,
1819 struct ieee80211_scan_request
*hw_req
)
1821 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1822 struct cfg80211_scan_request
*req
= &hw_req
->req
;
1825 if (req
->n_channels
== 0 ||
1826 req
->n_channels
> mvm
->fw
->ucode_capa
.n_scan_channels
)
1829 ret
= iwl_mvm_cancel_scan_wait_notif(mvm
, IWL_MVM_SCAN_SCHED
);
1833 mutex_lock(&mvm
->mutex
);
1835 if (mvm
->scan_status
!= IWL_MVM_SCAN_NONE
) {
1840 iwl_mvm_ref(mvm
, IWL_MVM_REF_SCAN
);
1842 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
)
1843 ret
= iwl_mvm_unified_scan_lmac(mvm
, vif
, hw_req
);
1845 ret
= iwl_mvm_scan_request(mvm
, vif
, req
);
1848 iwl_mvm_unref(mvm
, IWL_MVM_REF_SCAN
);
1850 mutex_unlock(&mvm
->mutex
);
1854 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
1855 struct ieee80211_vif
*vif
)
1857 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1859 mutex_lock(&mvm
->mutex
);
1861 iwl_mvm_cancel_scan(mvm
);
1863 mutex_unlock(&mvm
->mutex
);
1867 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
1868 struct ieee80211_sta
*sta
, u16 tids
,
1870 enum ieee80211_frame_release_type reason
,
1873 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1875 /* Called when we need to transmit (a) frame(s) from mac80211 */
1877 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
1878 tids
, more_data
, false);
1882 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw
*hw
,
1883 struct ieee80211_sta
*sta
, u16 tids
,
1885 enum ieee80211_frame_release_type reason
,
1888 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1890 /* Called when we need to transmit (a) frame(s) from agg queue */
1892 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
1893 tids
, more_data
, true);
1896 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
1897 struct ieee80211_vif
*vif
,
1898 enum sta_notify_cmd cmd
,
1899 struct ieee80211_sta
*sta
)
1901 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1902 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
1906 case STA_NOTIFY_SLEEP
:
1907 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
1908 ieee80211_sta_block_awake(hw
, sta
, true);
1909 spin_lock_bh(&mvmsta
->lock
);
1910 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
1911 struct iwl_mvm_tid_data
*tid_data
;
1913 tid_data
= &mvmsta
->tid_data
[tid
];
1914 if (tid_data
->state
!= IWL_AGG_ON
&&
1915 tid_data
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
1917 if (iwl_mvm_tid_queued(tid_data
) == 0)
1919 ieee80211_sta_set_buffered(sta
, tid
, true);
1921 spin_unlock_bh(&mvmsta
->lock
);
1923 * The fw updates the STA to be asleep. Tx packets on the Tx
1924 * queues to this station will not be transmitted. The fw will
1925 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1928 case STA_NOTIFY_AWAKE
:
1929 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
))
1931 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
1938 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw
*hw
,
1939 struct ieee80211_vif
*vif
,
1940 struct ieee80211_sta
*sta
)
1942 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1943 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
1946 * This is called before mac80211 does RCU synchronisation,
1947 * so here we already invalidate our internal RCU-protected
1948 * station pointer. The rest of the code will thus no longer
1949 * be able to find the station this way, and we don't rely
1950 * on further RCU synchronisation after the sta_state()
1951 * callback deleted the station.
1953 mutex_lock(&mvm
->mutex
);
1954 if (sta
== rcu_access_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
]))
1955 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
],
1957 mutex_unlock(&mvm
->mutex
);
1960 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
1961 struct ieee80211_vif
*vif
,
1962 struct ieee80211_sta
*sta
,
1963 enum ieee80211_sta_state old_state
,
1964 enum ieee80211_sta_state new_state
)
1966 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1967 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1970 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
1971 sta
->addr
, old_state
, new_state
);
1973 /* this would be a mac80211 bug ... but don't crash */
1974 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
1977 /* if a STA is being removed, reuse its ID */
1978 flush_work(&mvm
->sta_drained_wk
);
1980 mutex_lock(&mvm
->mutex
);
1981 if (old_state
== IEEE80211_STA_NOTEXIST
&&
1982 new_state
== IEEE80211_STA_NONE
) {
1984 * Firmware bug - it'll crash if the beacon interval is less
1985 * than 16. We can't avoid connecting at all, so refuse the
1986 * station state change, this will cause mac80211 to abandon
1987 * attempts to connect to this AP, and eventually wpa_s will
1988 * blacklist the AP...
1990 if (vif
->type
== NL80211_IFTYPE_STATION
&&
1991 vif
->bss_conf
.beacon_int
< 16) {
1993 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
1994 sta
->addr
, vif
->bss_conf
.beacon_int
);
2001 iwl_mvm_tdls_sta_count(mvm
, NULL
) ==
2002 IWL_MVM_TDLS_STA_COUNT
||
2003 iwl_mvm_phy_ctx_count(mvm
) > 1)) {
2004 IWL_DEBUG_MAC80211(mvm
, "refusing TDLS sta\n");
2009 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
2010 if (sta
->tdls
&& ret
== 0)
2011 iwl_mvm_recalc_tdls_state(mvm
, vif
, true);
2012 } else if (old_state
== IEEE80211_STA_NONE
&&
2013 new_state
== IEEE80211_STA_AUTH
) {
2015 * EBS may be disabled due to previous failures reported by FW.
2016 * Reset EBS status here assuming environment has been changed.
2018 mvm
->last_ebs_successful
= true;
2020 } else if (old_state
== IEEE80211_STA_AUTH
&&
2021 new_state
== IEEE80211_STA_ASSOC
) {
2022 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
2024 iwl_mvm_rs_rate_init(mvm
, sta
,
2025 mvmvif
->phy_ctxt
->channel
->band
,
2027 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2028 new_state
== IEEE80211_STA_AUTHORIZED
) {
2030 /* we don't support TDLS during DCM */
2031 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2032 iwl_mvm_teardown_tdls_peers(mvm
);
2034 /* enable beacon filtering */
2035 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
2037 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
2038 new_state
== IEEE80211_STA_ASSOC
) {
2039 /* disable beacon filtering */
2040 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
, 0));
2042 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2043 new_state
== IEEE80211_STA_AUTH
) {
2045 } else if (old_state
== IEEE80211_STA_AUTH
&&
2046 new_state
== IEEE80211_STA_NONE
) {
2048 } else if (old_state
== IEEE80211_STA_NONE
&&
2049 new_state
== IEEE80211_STA_NOTEXIST
) {
2050 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
2052 iwl_mvm_recalc_tdls_state(mvm
, vif
, false);
2057 mutex_unlock(&mvm
->mutex
);
2062 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
2064 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2066 mvm
->rts_threshold
= value
;
2071 static void iwl_mvm_sta_rc_update(struct ieee80211_hw
*hw
,
2072 struct ieee80211_vif
*vif
,
2073 struct ieee80211_sta
*sta
, u32 changed
)
2075 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2077 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2078 changed
& IEEE80211_RC_NSS_CHANGED
)
2079 iwl_mvm_sf_update(mvm
, vif
, false);
2082 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
2083 struct ieee80211_vif
*vif
, u16 ac
,
2084 const struct ieee80211_tx_queue_params
*params
)
2086 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2087 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2089 mvmvif
->queue_params
[ac
] = *params
;
2092 * No need to update right away, we'll get BSS_CHANGED_QOS
2093 * The exception is P2P_DEVICE interface which needs immediate update.
2095 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
2098 mutex_lock(&mvm
->mutex
);
2099 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2100 mutex_unlock(&mvm
->mutex
);
2106 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
2107 struct ieee80211_vif
*vif
)
2109 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2110 u32 duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
,
2111 200 + vif
->bss_conf
.beacon_int
);
2112 u32 min_duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
,
2113 100 + vif
->bss_conf
.beacon_int
);
2115 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
2119 * iwl_mvm_protect_session() reads directly from the device
2120 * (the system time), so make sure it is available.
2122 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PREPARE_TX
))
2125 mutex_lock(&mvm
->mutex
);
2126 /* Try really hard to protect the session and hear a beacon */
2127 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
, 500, false);
2128 mutex_unlock(&mvm
->mutex
);
2130 iwl_mvm_unref(mvm
, IWL_MVM_REF_PREPARE_TX
);
2133 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw
*hw
,
2134 struct ieee80211_vif
*vif
,
2135 struct cfg80211_sched_scan_request
*req
,
2136 struct ieee80211_scan_ies
*ies
)
2138 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2141 ret
= iwl_mvm_cancel_scan_wait_notif(mvm
, IWL_MVM_SCAN_OS
);
2145 mutex_lock(&mvm
->mutex
);
2147 /* Newest FW fixes sched scan while connected on another interface */
2148 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
) {
2149 if (!vif
->bss_conf
.idle
) {
2153 } else if (!iwl_mvm_is_idle(mvm
)) {
2158 if (mvm
->scan_status
!= IWL_MVM_SCAN_NONE
) {
2163 mvm
->scan_status
= IWL_MVM_SCAN_SCHED
;
2165 if (!(mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
)) {
2166 ret
= iwl_mvm_config_sched_scan(mvm
, vif
, req
, ies
);
2171 ret
= iwl_mvm_config_sched_scan_profiles(mvm
, req
);
2175 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
)
2176 ret
= iwl_mvm_unified_sched_scan_lmac(mvm
, vif
, req
, ies
);
2178 ret
= iwl_mvm_sched_scan_start(mvm
, req
);
2183 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
2185 mutex_unlock(&mvm
->mutex
);
2189 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw
*hw
,
2190 struct ieee80211_vif
*vif
)
2192 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2195 mutex_lock(&mvm
->mutex
);
2196 ret
= iwl_mvm_scan_offload_stop(mvm
, false);
2197 mutex_unlock(&mvm
->mutex
);
2198 iwl_mvm_wait_for_async_handlers(mvm
);
2203 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
2204 enum set_key_cmd cmd
,
2205 struct ieee80211_vif
*vif
,
2206 struct ieee80211_sta
*sta
,
2207 struct ieee80211_key_conf
*key
)
2209 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2212 if (iwlwifi_mod_params
.sw_crypto
) {
2213 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
2217 switch (key
->cipher
) {
2218 case WLAN_CIPHER_SUITE_TKIP
:
2219 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
2221 case WLAN_CIPHER_SUITE_CCMP
:
2222 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
2224 case WLAN_CIPHER_SUITE_AES_CMAC
:
2225 WARN_ON_ONCE(!(hw
->flags
& IEEE80211_HW_MFP_CAPABLE
));
2227 case WLAN_CIPHER_SUITE_WEP40
:
2228 case WLAN_CIPHER_SUITE_WEP104
:
2230 * Support for TX only, at least for now, so accept
2231 * the key and do nothing else. Then mac80211 will
2232 * pass it for TX but we don't have to use it for RX.
2236 /* currently FW supports only one optional cipher scheme */
2237 if (hw
->n_cipher_schemes
&&
2238 hw
->cipher_schemes
->cipher
== key
->cipher
)
2239 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2244 mutex_lock(&mvm
->mutex
);
2248 if ((vif
->type
== NL80211_IFTYPE_ADHOC
||
2249 vif
->type
== NL80211_IFTYPE_AP
) && !sta
) {
2251 * GTK on AP interface is a TX-only key, return 0;
2252 * on IBSS they're per-station and because we're lazy
2253 * we don't support them for RX, so do the same.
2256 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2260 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
2261 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, false);
2263 IWL_WARN(mvm
, "set key failed\n");
2265 * can't add key for RX, but we don't need it
2266 * in the device for TX so still return 0
2268 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2274 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2279 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
2280 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
2286 mutex_unlock(&mvm
->mutex
);
2290 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2291 struct ieee80211_vif
*vif
,
2292 struct ieee80211_key_conf
*keyconf
,
2293 struct ieee80211_sta
*sta
,
2294 u32 iv32
, u16
*phase1key
)
2296 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2298 if (keyconf
->hw_key_idx
== STA_KEY_IDX_INVALID
)
2301 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
2305 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data
*notif_wait
,
2306 struct iwl_rx_packet
*pkt
, void *data
)
2308 struct iwl_mvm
*mvm
=
2309 container_of(notif_wait
, struct iwl_mvm
, notif_wait
);
2310 struct iwl_hs20_roc_res
*resp
;
2311 int resp_len
= iwl_rx_packet_payload_len(pkt
);
2312 struct iwl_mvm_time_event_data
*te_data
= data
;
2314 if (WARN_ON(pkt
->hdr
.cmd
!= HOT_SPOT_CMD
))
2317 if (WARN_ON_ONCE(resp_len
!= sizeof(*resp
))) {
2318 IWL_ERR(mvm
, "Invalid HOT_SPOT_CMD response\n");
2322 resp
= (void *)pkt
->data
;
2325 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2326 resp
->status
, resp
->event_unique_id
);
2328 te_data
->uid
= le32_to_cpu(resp
->event_unique_id
);
2329 IWL_DEBUG_TE(mvm
, "TIME_EVENT_CMD response - UID = 0x%x\n",
2332 spin_lock_bh(&mvm
->time_event_lock
);
2333 list_add_tail(&te_data
->list
, &mvm
->aux_roc_te_list
);
2334 spin_unlock_bh(&mvm
->time_event_lock
);
2339 #define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2340 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm
*mvm
,
2341 struct ieee80211_channel
*channel
,
2342 struct ieee80211_vif
*vif
,
2345 int res
, time_reg
= DEVICE_SYSTEM_TIME_REG
;
2346 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2347 struct iwl_mvm_time_event_data
*te_data
= &mvmvif
->hs_time_event_data
;
2348 static const u8 time_event_response
[] = { HOT_SPOT_CMD
};
2349 struct iwl_notification_wait wait_time_event
;
2350 struct iwl_hs20_roc_req aux_roc_req
= {
2351 .action
= cpu_to_le32(FW_CTXT_ACTION_ADD
),
2353 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX
, 0)),
2354 .sta_id_and_color
= cpu_to_le32(mvm
->aux_sta
.sta_id
),
2355 /* Set the channel info data */
2356 .channel_info
.band
= (channel
->band
== IEEE80211_BAND_2GHZ
) ?
2357 PHY_BAND_24
: PHY_BAND_5
,
2358 .channel_info
.channel
= channel
->hw_value
,
2359 .channel_info
.width
= PHY_VHT_CHANNEL_MODE20
,
2360 /* Set the time and duration */
2361 .apply_time
= cpu_to_le32(iwl_read_prph(mvm
->trans
, time_reg
)),
2362 .apply_time_max_delay
=
2363 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL
)),
2364 .duration
= cpu_to_le32(MSEC_TO_TU(duration
)),
2367 /* Set the node address */
2368 memcpy(aux_roc_req
.node_addr
, vif
->addr
, ETH_ALEN
);
2371 te_data
->duration
= duration
;
2372 te_data
->id
= HOT_SPOT_CMD
;
2374 lockdep_assert_held(&mvm
->mutex
);
2376 spin_lock_bh(&mvm
->time_event_lock
);
2377 list_add_tail(&te_data
->list
, &mvm
->time_event_list
);
2378 spin_unlock_bh(&mvm
->time_event_lock
);
2381 * Use a notification wait, which really just processes the
2382 * command response and doesn't wait for anything, in order
2383 * to be able to process the response and get the UID inside
2384 * the RX path. Using CMD_WANT_SKB doesn't work because it
2385 * stores the buffer and then wakes up this thread, by which
2386 * time another notification (that the time event started)
2387 * might already be processed unsuccessfully.
2389 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_time_event
,
2390 time_event_response
,
2391 ARRAY_SIZE(time_event_response
),
2392 iwl_mvm_rx_aux_roc
, te_data
);
2394 res
= iwl_mvm_send_cmd_pdu(mvm
, HOT_SPOT_CMD
, 0, sizeof(aux_roc_req
),
2398 IWL_ERR(mvm
, "Couldn't send HOT_SPOT_CMD: %d\n", res
);
2399 iwl_remove_notification(&mvm
->notif_wait
, &wait_time_event
);
2403 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2404 res
= iwl_wait_notification(&mvm
->notif_wait
, &wait_time_event
, 1);
2405 /* should never fail */
2410 spin_lock_bh(&mvm
->time_event_lock
);
2411 iwl_mvm_te_clear_data(mvm
, te_data
);
2412 spin_unlock_bh(&mvm
->time_event_lock
);
2418 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
2419 struct ieee80211_vif
*vif
,
2420 struct ieee80211_channel
*channel
,
2422 enum ieee80211_roc_type type
)
2424 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2425 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2426 struct cfg80211_chan_def chandef
;
2427 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2430 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
2433 switch (vif
->type
) {
2434 case NL80211_IFTYPE_STATION
:
2435 /* Use aux roc framework (HS20) */
2436 ret
= iwl_mvm_send_aux_roc_cmd(mvm
, channel
,
2439 case NL80211_IFTYPE_P2P_DEVICE
:
2443 IWL_ERR(mvm
, "vif isn't P2P_DEVICE: %d\n", vif
->type
);
2447 mutex_lock(&mvm
->mutex
);
2449 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
2450 phy_ctxt
= &mvm
->phy_ctxts
[i
];
2451 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
2454 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
2456 * Unbind the P2P_DEVICE from the current PHY context,
2457 * and if the PHY context is not used remove it.
2459 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2460 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2463 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2465 /* Bind the P2P_DEVICE to the current PHY Context */
2466 mvmvif
->phy_ctxt
= phy_ctxt
;
2468 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2469 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2472 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2473 goto schedule_time_event
;
2477 /* Need to update the PHY context only if the ROC channel changed */
2478 if (channel
== mvmvif
->phy_ctxt
->channel
)
2479 goto schedule_time_event
;
2481 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
2484 * Change the PHY context configuration as it is currently referenced
2485 * only by the P2P Device MAC
2487 if (mvmvif
->phy_ctxt
->ref
== 1) {
2488 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
2494 * The PHY context is shared with other MACs. Need to remove the
2495 * P2P Device from the binding, allocate an new PHY context and
2496 * create a new binding
2498 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2504 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
2507 IWL_ERR(mvm
, "Failed to change PHY context\n");
2511 /* Unbind the P2P_DEVICE from the current PHY context */
2512 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2513 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2516 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2518 /* Bind the P2P_DEVICE to the new allocated PHY context */
2519 mvmvif
->phy_ctxt
= phy_ctxt
;
2521 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2522 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2525 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2528 schedule_time_event
:
2529 /* Schedule the time events */
2530 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
2533 mutex_unlock(&mvm
->mutex
);
2534 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2538 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
2540 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2542 IWL_DEBUG_MAC80211(mvm
, "enter\n");
2544 mutex_lock(&mvm
->mutex
);
2545 iwl_mvm_stop_p2p_roc(mvm
);
2546 mutex_unlock(&mvm
->mutex
);
2548 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2552 static int __iwl_mvm_add_chanctx(struct iwl_mvm
*mvm
,
2553 struct ieee80211_chanctx_conf
*ctx
)
2555 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2556 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2559 lockdep_assert_held(&mvm
->mutex
);
2561 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
2563 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2569 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2570 ctx
->rx_chains_static
,
2571 ctx
->rx_chains_dynamic
);
2573 IWL_ERR(mvm
, "Failed to add PHY context\n");
2577 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
2578 *phy_ctxt_id
= phy_ctxt
->id
;
2583 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
2584 struct ieee80211_chanctx_conf
*ctx
)
2586 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2589 mutex_lock(&mvm
->mutex
);
2590 ret
= __iwl_mvm_add_chanctx(mvm
, ctx
);
2591 mutex_unlock(&mvm
->mutex
);
2596 static void __iwl_mvm_remove_chanctx(struct iwl_mvm
*mvm
,
2597 struct ieee80211_chanctx_conf
*ctx
)
2599 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2600 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2602 lockdep_assert_held(&mvm
->mutex
);
2604 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
2607 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
2608 struct ieee80211_chanctx_conf
*ctx
)
2610 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2612 mutex_lock(&mvm
->mutex
);
2613 __iwl_mvm_remove_chanctx(mvm
, ctx
);
2614 mutex_unlock(&mvm
->mutex
);
2617 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
2618 struct ieee80211_chanctx_conf
*ctx
,
2621 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2622 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2623 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2625 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
2626 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
2627 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
2628 IEEE80211_CHANCTX_CHANGE_RADAR
|
2629 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH
)),
2630 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2631 phy_ctxt
->ref
, changed
))
2634 mutex_lock(&mvm
->mutex
);
2635 iwl_mvm_bt_coex_vif_change(mvm
);
2636 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2637 ctx
->rx_chains_static
,
2638 ctx
->rx_chains_dynamic
);
2639 mutex_unlock(&mvm
->mutex
);
2642 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm
*mvm
,
2643 struct ieee80211_vif
*vif
,
2644 struct ieee80211_chanctx_conf
*ctx
,
2645 bool switching_chanctx
)
2647 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2648 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2649 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2652 lockdep_assert_held(&mvm
->mutex
);
2654 mvmvif
->phy_ctxt
= phy_ctxt
;
2656 switch (vif
->type
) {
2657 case NL80211_IFTYPE_AP
:
2658 /* Unless it's a CSA flow we have nothing to do here */
2659 if (vif
->csa_active
) {
2660 mvmvif
->ap_ibss_active
= true;
2663 case NL80211_IFTYPE_ADHOC
:
2665 * The AP binding flow is handled as part of the start_ap flow
2666 * (in bss_info_changed), similarly for IBSS.
2670 case NL80211_IFTYPE_STATION
:
2672 case NL80211_IFTYPE_MONITOR
:
2673 /* always disable PS when a monitor interface is active */
2674 mvmvif
->ps_disabled
= true;
2681 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2686 * Power state must be updated before quotas,
2687 * otherwise fw will complain.
2689 iwl_mvm_power_update_mac(mvm
);
2691 /* Setting the quota at this stage is only required for monitor
2692 * interfaces. For the other types, the bss_info changed flow
2693 * will handle quota settings.
2695 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
2696 mvmvif
->monitor_active
= true;
2697 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
2699 goto out_remove_binding
;
2702 /* Handle binding during CSA */
2703 if ((vif
->type
== NL80211_IFTYPE_AP
) ||
2704 (switching_chanctx
&& (vif
->type
== NL80211_IFTYPE_STATION
))) {
2705 iwl_mvm_update_quotas(mvm
, NULL
);
2706 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2709 if (vif
->csa_active
&& vif
->type
== NL80211_IFTYPE_STATION
) {
2710 struct iwl_mvm_sta
*mvmsta
;
2712 mvmsta
= iwl_mvm_sta_from_staid_protected(mvm
,
2715 if (WARN_ON(!mvmsta
))
2718 /* TODO: only re-enable after the first beacon */
2719 iwl_mvm_sta_modify_disable_tx(mvm
, mvmsta
, false);
2725 iwl_mvm_binding_remove_vif(mvm
, vif
);
2726 iwl_mvm_power_update_mac(mvm
);
2729 mvmvif
->phy_ctxt
= NULL
;
2732 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
2733 struct ieee80211_vif
*vif
,
2734 struct ieee80211_chanctx_conf
*ctx
)
2736 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2739 mutex_lock(&mvm
->mutex
);
2740 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vif
, ctx
, false);
2741 mutex_unlock(&mvm
->mutex
);
2746 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm
*mvm
,
2747 struct ieee80211_vif
*vif
,
2748 struct ieee80211_chanctx_conf
*ctx
,
2749 bool switching_chanctx
)
2751 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2752 struct ieee80211_vif
*disabled_vif
= NULL
;
2753 struct iwl_mvm_sta
*mvmsta
;
2755 lockdep_assert_held(&mvm
->mutex
);
2757 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
2759 switch (vif
->type
) {
2760 case NL80211_IFTYPE_ADHOC
:
2762 case NL80211_IFTYPE_MONITOR
:
2763 mvmvif
->monitor_active
= false;
2764 mvmvif
->ps_disabled
= false;
2766 case NL80211_IFTYPE_AP
:
2767 /* This part is triggered only during CSA */
2768 if (!vif
->csa_active
|| !mvmvif
->ap_ibss_active
)
2771 /* Set CS bit on all the stations */
2772 iwl_mvm_modify_all_sta_disable_tx(mvm
, mvmvif
, true);
2774 /* Save blocked iface, the timeout is set on the next beacon */
2775 rcu_assign_pointer(mvm
->csa_tx_blocked_vif
, vif
);
2777 mvmvif
->ap_ibss_active
= false;
2779 case NL80211_IFTYPE_STATION
:
2780 if (!switching_chanctx
)
2785 mvmsta
= iwl_mvm_sta_from_staid_protected(mvm
,
2788 if (!WARN_ON(!mvmsta
))
2789 iwl_mvm_sta_modify_disable_tx(mvm
, mvmsta
, true);
2791 iwl_mvm_mac_ctxt_changed(mvm
, vif
, true, NULL
);
2797 iwl_mvm_update_quotas(mvm
, disabled_vif
);
2798 iwl_mvm_binding_remove_vif(mvm
, vif
);
2801 mvmvif
->phy_ctxt
= NULL
;
2802 iwl_mvm_power_update_mac(mvm
);
2805 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
2806 struct ieee80211_vif
*vif
,
2807 struct ieee80211_chanctx_conf
*ctx
)
2809 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2811 mutex_lock(&mvm
->mutex
);
2812 __iwl_mvm_unassign_vif_chanctx(mvm
, vif
, ctx
, false);
2813 mutex_unlock(&mvm
->mutex
);
2816 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw
*hw
,
2817 struct ieee80211_vif_chanctx_switch
*vifs
,
2819 enum ieee80211_chanctx_switch_mode mode
)
2821 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2824 /* we only support SWAP_CONTEXTS and with a single-vif right now */
2825 if (mode
!= CHANCTX_SWMODE_SWAP_CONTEXTS
|| n_vifs
> 1)
2828 mutex_lock(&mvm
->mutex
);
2829 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
2830 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].old_ctx
);
2832 ret
= __iwl_mvm_add_chanctx(mvm
, vifs
[0].new_ctx
);
2834 IWL_ERR(mvm
, "failed to add new_ctx during channel switch\n");
2838 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
2842 "failed to assign new_ctx during channel switch\n");
2846 /* we don't support TDLS during DCM - can be caused by channel switch */
2847 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2848 iwl_mvm_teardown_tdls_peers(mvm
);
2853 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].new_ctx
);
2856 ret
= __iwl_mvm_add_chanctx(mvm
, vifs
[0].old_ctx
);
2858 IWL_ERR(mvm
, "failed to add old_ctx back after failure.\n");
2862 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
2865 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
2872 /* things keep failing, better restart the hw */
2873 iwl_mvm_nic_restart(mvm
, false);
2876 mutex_unlock(&mvm
->mutex
);
2880 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
2881 struct ieee80211_sta
*sta
,
2884 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2885 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
2887 if (!mvm_sta
|| !mvm_sta
->vif
) {
2888 IWL_ERR(mvm
, "Station is not associated to a vif\n");
2892 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
2895 #ifdef CONFIG_NL80211_TESTMODE
2896 static const struct nla_policy iwl_mvm_tm_policy
[IWL_MVM_TM_ATTR_MAX
+ 1] = {
2897 [IWL_MVM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
2898 [IWL_MVM_TM_ATTR_NOA_DURATION
] = { .type
= NLA_U32
},
2899 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
] = { .type
= NLA_U32
},
2902 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm
*mvm
,
2903 struct ieee80211_vif
*vif
,
2904 void *data
, int len
)
2906 struct nlattr
*tb
[IWL_MVM_TM_ATTR_MAX
+ 1];
2910 err
= nla_parse(tb
, IWL_MVM_TM_ATTR_MAX
, data
, len
, iwl_mvm_tm_policy
);
2914 if (!tb
[IWL_MVM_TM_ATTR_CMD
])
2917 switch (nla_get_u32(tb
[IWL_MVM_TM_ATTR_CMD
])) {
2918 case IWL_MVM_TM_CMD_SET_NOA
:
2919 if (!vif
|| vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
||
2920 !vif
->bss_conf
.enable_beacon
||
2921 !tb
[IWL_MVM_TM_ATTR_NOA_DURATION
])
2924 noa_duration
= nla_get_u32(tb
[IWL_MVM_TM_ATTR_NOA_DURATION
]);
2925 if (noa_duration
>= vif
->bss_conf
.beacon_int
)
2928 mvm
->noa_duration
= noa_duration
;
2931 return iwl_mvm_update_quotas(mvm
, NULL
);
2932 case IWL_MVM_TM_CMD_SET_BEACON_FILTER
:
2933 /* must be associated client vif - ignore authorized */
2934 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
||
2935 !vif
->bss_conf
.assoc
|| !vif
->bss_conf
.dtim_period
||
2936 !tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
])
2939 if (nla_get_u32(tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
]))
2940 return iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
2941 return iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
2947 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw
*hw
,
2948 struct ieee80211_vif
*vif
,
2949 void *data
, int len
)
2951 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2954 mutex_lock(&mvm
->mutex
);
2955 err
= __iwl_mvm_mac_testmode_cmd(mvm
, vif
, data
, len
);
2956 mutex_unlock(&mvm
->mutex
);
2962 static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw
*hw
,
2963 struct ieee80211_vif
*vif
,
2964 struct cfg80211_chan_def
*chandef
)
2966 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2967 struct ieee80211_vif
*csa_vif
;
2969 mutex_lock(&mvm
->mutex
);
2971 csa_vif
= rcu_dereference_protected(mvm
->csa_vif
,
2972 lockdep_is_held(&mvm
->mutex
));
2973 if (WARN(csa_vif
&& csa_vif
->csa_active
,
2974 "Another CSA is already in progress"))
2977 IWL_DEBUG_MAC80211(mvm
, "CSA started to freq %d\n",
2978 chandef
->center_freq1
);
2979 rcu_assign_pointer(mvm
->csa_vif
, vif
);
2982 mutex_unlock(&mvm
->mutex
);
2985 static void iwl_mvm_mac_flush(struct ieee80211_hw
*hw
,
2986 struct ieee80211_vif
*vif
, u32 queues
, bool drop
)
2988 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2989 struct iwl_mvm_vif
*mvmvif
;
2990 struct iwl_mvm_sta
*mvmsta
;
2992 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
)
2995 mutex_lock(&mvm
->mutex
);
2996 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2997 mvmsta
= iwl_mvm_sta_from_staid_protected(mvm
, mvmvif
->ap_sta_id
);
2999 if (WARN_ON_ONCE(!mvmsta
))
3003 if (iwl_mvm_flush_tx_path(mvm
, mvmsta
->tfd_queue_msk
, true))
3004 IWL_ERR(mvm
, "flush request fail\n");
3006 iwl_trans_wait_tx_queue_empty(mvm
->trans
,
3007 mvmsta
->tfd_queue_msk
);
3010 mutex_unlock(&mvm
->mutex
);
3013 const struct ieee80211_ops iwl_mvm_hw_ops
= {
3014 .tx
= iwl_mvm_mac_tx
,
3015 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
3016 .start
= iwl_mvm_mac_start
,
3017 .restart_complete
= iwl_mvm_mac_restart_complete
,
3018 .stop
= iwl_mvm_mac_stop
,
3019 .add_interface
= iwl_mvm_mac_add_interface
,
3020 .remove_interface
= iwl_mvm_mac_remove_interface
,
3021 .config
= iwl_mvm_mac_config
,
3022 .prepare_multicast
= iwl_mvm_prepare_multicast
,
3023 .configure_filter
= iwl_mvm_configure_filter
,
3024 .bss_info_changed
= iwl_mvm_bss_info_changed
,
3025 .hw_scan
= iwl_mvm_mac_hw_scan
,
3026 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
3027 .sta_pre_rcu_remove
= iwl_mvm_sta_pre_rcu_remove
,
3028 .sta_state
= iwl_mvm_mac_sta_state
,
3029 .sta_notify
= iwl_mvm_mac_sta_notify
,
3030 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
3031 .release_buffered_frames
= iwl_mvm_mac_release_buffered_frames
,
3032 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
3033 .sta_rc_update
= iwl_mvm_sta_rc_update
,
3034 .conf_tx
= iwl_mvm_mac_conf_tx
,
3035 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
3036 .mgd_protect_tdls_discover
= iwl_mvm_mac_mgd_protect_tdls_discover
,
3037 .flush
= iwl_mvm_mac_flush
,
3038 .sched_scan_start
= iwl_mvm_mac_sched_scan_start
,
3039 .sched_scan_stop
= iwl_mvm_mac_sched_scan_stop
,
3040 .set_key
= iwl_mvm_mac_set_key
,
3041 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
3042 .remain_on_channel
= iwl_mvm_roc
,
3043 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
3044 .add_chanctx
= iwl_mvm_add_chanctx
,
3045 .remove_chanctx
= iwl_mvm_remove_chanctx
,
3046 .change_chanctx
= iwl_mvm_change_chanctx
,
3047 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
3048 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
3049 .switch_vif_chanctx
= iwl_mvm_switch_vif_chanctx
,
3051 .start_ap
= iwl_mvm_start_ap_ibss
,
3052 .stop_ap
= iwl_mvm_stop_ap_ibss
,
3053 .join_ibss
= iwl_mvm_start_ap_ibss
,
3054 .leave_ibss
= iwl_mvm_stop_ap_ibss
,
3056 .set_tim
= iwl_mvm_set_tim
,
3058 .channel_switch_beacon
= iwl_mvm_channel_switch_beacon
,
3060 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd
)
3062 #ifdef CONFIG_PM_SLEEP
3064 .suspend
= iwl_mvm_suspend
,
3065 .resume
= iwl_mvm_resume
,
3066 .set_wakeup
= iwl_mvm_set_wakeup
,
3067 .set_rekey_data
= iwl_mvm_set_rekey_data
,
3068 #if IS_ENABLED(CONFIG_IPV6)
3069 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
3071 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,