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.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *****************************************************************************/
63 #include <linux/kernel.h>
64 #include <linux/slab.h>
65 #include <linux/skbuff.h>
66 #include <linux/netdevice.h>
67 #include <linux/etherdevice.h>
69 #include <linux/if_arp.h>
70 #include <net/mac80211.h>
71 #include <net/ieee80211_radiotap.h>
74 #include "iwl-op-mode.h"
78 #include "time-event.h"
79 #include "iwl-eeprom-parse.h"
80 #include "fw-api-scan.h"
81 #include "iwl-phy-db.h"
84 static const struct ieee80211_iface_limit iwl_mvm_limits
[] = {
87 .types
= BIT(NL80211_IFTYPE_STATION
),
91 .types
= BIT(NL80211_IFTYPE_AP
) |
92 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
93 BIT(NL80211_IFTYPE_P2P_GO
),
97 .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
),
101 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations
[] = {
103 .num_different_channels
= 1,
105 .limits
= iwl_mvm_limits
,
106 .n_limits
= ARRAY_SIZE(iwl_mvm_limits
),
110 #ifdef CONFIG_PM_SLEEP
111 static const struct nl80211_wowlan_tcp_data_token_feature
112 iwl_mvm_wowlan_tcp_token_feature
= {
115 .bufsize
= IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS
,
118 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support
= {
119 .tok
= &iwl_mvm_wowlan_tcp_token_feature
,
120 .data_payload_max
= IWL_WOWLAN_TCP_MAX_PACKET_LEN
-
121 sizeof(struct ethhdr
) -
122 sizeof(struct iphdr
) -
123 sizeof(struct tcphdr
),
124 .data_interval_max
= 65535, /* __le16 in API */
125 .wake_payload_max
= IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN
-
126 sizeof(struct ethhdr
) -
127 sizeof(struct iphdr
) -
128 sizeof(struct tcphdr
),
133 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
135 * Use the reserved field to indicate magic values.
136 * these values will only be used internally by the driver,
137 * and won't make it to the fw (reserved will be 0).
138 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
139 * be the vif's ip address. in case there is not a single
140 * ip address (0, or more than 1), this attribute will
142 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
143 * the LSB bytes of the vif's mac address
146 BC_FILTER_MAGIC_NONE
= 0,
151 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters
[] = {
155 .frame_type
= BCAST_FILTER_FRAME_TYPE_ALL
,
158 /* frame type - arp, hw type - ethernet */
160 BCAST_FILTER_OFFSET_PAYLOAD_START
,
161 .offset
= sizeof(rfc1042_header
),
162 .val
= cpu_to_be32(0x08060001),
163 .mask
= cpu_to_be32(0xffffffff),
168 BCAST_FILTER_OFFSET_PAYLOAD_START
,
169 .offset
= sizeof(rfc1042_header
) + 2 +
170 sizeof(struct arphdr
) +
171 ETH_ALEN
+ sizeof(__be32
) +
173 .mask
= cpu_to_be32(0xffffffff),
174 /* mark it as special field */
175 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_IP
),
180 /* dhcp offer bcast */
182 .frame_type
= BCAST_FILTER_FRAME_TYPE_IPV4
,
185 /* udp dest port - 68 (bootp client)*/
186 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
187 .offset
= offsetof(struct udphdr
, dest
),
188 .val
= cpu_to_be32(0x00440000),
189 .mask
= cpu_to_be32(0xffff0000),
192 /* dhcp - lsb bytes of client hw address */
193 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
195 .mask
= cpu_to_be32(0xffffffff),
196 /* mark it as special field */
197 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_MAC
),
201 /* last filter must be empty */
206 void iwl_mvm_ref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
208 if (!iwl_mvm_is_d0i3_supported(mvm
))
211 IWL_DEBUG_RPM(mvm
, "Take mvm reference - type %d\n", ref_type
);
212 WARN_ON(test_and_set_bit(ref_type
, mvm
->ref_bitmap
));
213 iwl_trans_ref(mvm
->trans
);
216 void iwl_mvm_unref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
218 if (!iwl_mvm_is_d0i3_supported(mvm
))
221 IWL_DEBUG_RPM(mvm
, "Leave mvm reference - type %d\n", ref_type
);
222 WARN_ON(!test_and_clear_bit(ref_type
, mvm
->ref_bitmap
));
223 iwl_trans_unref(mvm
->trans
);
227 iwl_mvm_unref_all_except(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref
)
231 if (!iwl_mvm_is_d0i3_supported(mvm
))
234 for_each_set_bit(i
, mvm
->ref_bitmap
, IWL_MVM_REF_COUNT
) {
238 IWL_DEBUG_RPM(mvm
, "Cleanup: remove mvm ref type %d\n", i
);
239 clear_bit(i
, mvm
->ref_bitmap
);
240 iwl_trans_unref(mvm
->trans
);
244 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm
*mvm
)
248 memset(mvm
->phy_ctxts
, 0, sizeof(mvm
->phy_ctxts
));
249 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
250 mvm
->phy_ctxts
[i
].id
= i
;
251 mvm
->phy_ctxts
[i
].ref
= 0;
255 static int iwl_mvm_max_scan_ie_len(struct iwl_mvm
*mvm
)
257 /* we create the 802.11 header and SSID element */
258 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID
)
259 return mvm
->fw
->ucode_capa
.max_probe_length
- 24 - 2;
260 return mvm
->fw
->ucode_capa
.max_probe_length
- 24 - 34;
263 int iwl_mvm_mac_setup_register(struct iwl_mvm
*mvm
)
265 struct ieee80211_hw
*hw
= mvm
->hw
;
268 /* Tell mac80211 our characteristics */
269 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
270 IEEE80211_HW_SPECTRUM_MGMT
|
271 IEEE80211_HW_REPORTS_TX_ACK_STATUS
|
272 IEEE80211_HW_QUEUE_CONTROL
|
273 IEEE80211_HW_WANT_MONITOR_VIF
|
274 IEEE80211_HW_SUPPORTS_PS
|
275 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
|
276 IEEE80211_HW_AMPDU_AGGREGATION
|
277 IEEE80211_HW_TIMING_BEACON_ONLY
|
278 IEEE80211_HW_CONNECTION_MONITOR
|
279 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
280 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
282 hw
->queues
= mvm
->first_agg_queue
;
283 hw
->offchannel_tx_hw_queue
= IWL_MVM_OFFCHANNEL_QUEUE
;
284 hw
->radiotap_mcs_details
|= IEEE80211_RADIOTAP_MCS_HAVE_FEC
|
285 IEEE80211_RADIOTAP_MCS_HAVE_STBC
;
286 hw
->radiotap_vht_details
|= IEEE80211_RADIOTAP_VHT_KNOWN_STBC
;
287 hw
->rate_control_algorithm
= "iwl-mvm-rs";
290 * Enable 11w if advertised by firmware and software crypto
291 * is not enabled (as the firmware will interpret some mgmt
292 * packets, so enabling it with software crypto isn't safe)
294 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_MFP
&&
295 !iwlwifi_mod_params
.sw_crypto
)
296 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
298 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT
&&
299 IWL_UCODE_API(mvm
->fw
->ucode_ver
) >= 9 &&
300 !iwlwifi_mod_params
.uapsd_disable
) {
301 hw
->flags
|= IEEE80211_HW_SUPPORTS_UAPSD
;
302 hw
->uapsd_queues
= IWL_UAPSD_AC_INFO
;
303 hw
->uapsd_max_sp_len
= IWL_UAPSD_MAX_SP
;
306 hw
->sta_data_size
= sizeof(struct iwl_mvm_sta
);
307 hw
->vif_data_size
= sizeof(struct iwl_mvm_vif
);
308 hw
->chanctx_data_size
= sizeof(u16
);
310 hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
311 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
312 BIT(NL80211_IFTYPE_AP
) |
313 BIT(NL80211_IFTYPE_P2P_GO
) |
314 BIT(NL80211_IFTYPE_P2P_DEVICE
) |
315 BIT(NL80211_IFTYPE_ADHOC
);
317 hw
->wiphy
->flags
|= WIPHY_FLAG_IBSS_RSN
;
318 hw
->wiphy
->regulatory_flags
|= REGULATORY_CUSTOM_REG
|
319 REGULATORY_DISABLE_BEACON_HINTS
;
321 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_GO_UAPSD
)
322 hw
->wiphy
->flags
|= WIPHY_FLAG_AP_UAPSD
;
324 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_CSA_FLOW
)
325 hw
->wiphy
->flags
|= WIPHY_FLAG_HAS_CHANNEL_SWITCH
;
327 hw
->wiphy
->iface_combinations
= iwl_mvm_iface_combinations
;
328 hw
->wiphy
->n_iface_combinations
=
329 ARRAY_SIZE(iwl_mvm_iface_combinations
);
331 hw
->wiphy
->max_remain_on_channel_duration
= 10000;
332 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
334 /* Extract MAC address */
335 memcpy(mvm
->addresses
[0].addr
, mvm
->nvm_data
->hw_addr
, ETH_ALEN
);
336 hw
->wiphy
->addresses
= mvm
->addresses
;
337 hw
->wiphy
->n_addresses
= 1;
339 /* Extract additional MAC addresses if available */
340 num_mac
= (mvm
->nvm_data
->n_hw_addrs
> 1) ?
341 min(IWL_MVM_MAX_ADDRESSES
, mvm
->nvm_data
->n_hw_addrs
) : 1;
343 for (i
= 1; i
< num_mac
; i
++) {
344 memcpy(mvm
->addresses
[i
].addr
, mvm
->addresses
[i
-1].addr
,
346 mvm
->addresses
[i
].addr
[5]++;
347 hw
->wiphy
->n_addresses
++;
350 iwl_mvm_reset_phy_ctxts(mvm
);
352 hw
->wiphy
->max_scan_ie_len
= iwl_mvm_max_scan_ie_len(mvm
);
354 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
356 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
357 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
358 &mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
];
359 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
360 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
361 &mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
];
363 hw
->wiphy
->hw_version
= mvm
->trans
->hw_id
;
365 if (iwlmvm_mod_params
.power_scheme
!= IWL_POWER_SCHEME_CAM
)
366 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
368 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
370 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_SCHED_SCAN
;
371 hw
->wiphy
->max_sched_scan_ssids
= PROBE_OPTION_MAX
;
372 hw
->wiphy
->max_match_sets
= IWL_SCAN_MAX_PROFILES
;
373 /* we create the 802.11 header and zero length SSID IE. */
374 hw
->wiphy
->max_sched_scan_ie_len
= SCAN_OFFLOAD_PROBE_REQ_SIZE
- 24 - 2;
376 hw
->wiphy
->features
|= NL80211_FEATURE_P2P_GO_CTWIN
|
377 NL80211_FEATURE_P2P_GO_OPPPS
;
379 mvm
->rts_threshold
= IEEE80211_MAX_RTS_THRESHOLD
;
381 /* currently FW API supports only one optional cipher scheme */
382 if (mvm
->fw
->cs
[0].cipher
) {
383 mvm
->hw
->n_cipher_schemes
= 1;
384 mvm
->hw
->cipher_schemes
= &mvm
->fw
->cs
[0];
387 #ifdef CONFIG_PM_SLEEP
388 if (iwl_mvm_is_d0i3_supported(mvm
) &&
389 device_can_wakeup(mvm
->trans
->dev
)) {
390 mvm
->wowlan
.flags
= WIPHY_WOWLAN_ANY
;
391 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
392 } else if (mvm
->fw
->img
[IWL_UCODE_WOWLAN
].sec
[0].len
&&
393 mvm
->trans
->ops
->d3_suspend
&&
394 mvm
->trans
->ops
->d3_resume
&&
395 device_can_wakeup(mvm
->trans
->dev
)) {
396 mvm
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
397 WIPHY_WOWLAN_DISCONNECT
|
398 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
399 WIPHY_WOWLAN_RFKILL_RELEASE
;
400 if (!iwlwifi_mod_params
.sw_crypto
)
401 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
402 WIPHY_WOWLAN_GTK_REKEY_FAILURE
|
403 WIPHY_WOWLAN_4WAY_HANDSHAKE
;
405 mvm
->wowlan
.n_patterns
= IWL_WOWLAN_MAX_PATTERNS
;
406 mvm
->wowlan
.pattern_min_len
= IWL_WOWLAN_MIN_PATTERN_LEN
;
407 mvm
->wowlan
.pattern_max_len
= IWL_WOWLAN_MAX_PATTERN_LEN
;
408 mvm
->wowlan
.tcp
= &iwl_mvm_wowlan_tcp_support
;
409 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
413 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
414 /* assign default bcast filtering configuration */
415 mvm
->bcast_filters
= iwl_mvm_default_bcast_filters
;
418 ret
= iwl_mvm_leds_init(mvm
);
422 ret
= ieee80211_register_hw(mvm
->hw
);
424 iwl_mvm_leds_exit(mvm
);
429 static bool iwl_mvm_defer_tx(struct iwl_mvm
*mvm
,
430 struct ieee80211_sta
*sta
,
433 struct iwl_mvm_sta
*mvmsta
;
437 * double check the IN_D0I3 flag both before and after
438 * taking the spinlock, in order to prevent taking
439 * the spinlock when not needed.
441 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
)))
444 spin_lock(&mvm
->d0i3_tx_lock
);
446 * testing the flag again ensures the skb dequeue
447 * loop (on d0i3 exit) hasn't run yet.
449 if (!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
))
452 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
453 if (mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
||
454 mvmsta
->sta_id
!= mvm
->d0i3_ap_sta_id
)
457 __skb_queue_tail(&mvm
->d0i3_tx
, skb
);
458 ieee80211_stop_queues(mvm
->hw
);
461 iwl_mvm_ref(mvm
, IWL_MVM_REF_TX
);
462 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX
);
466 spin_unlock(&mvm
->d0i3_tx_lock
);
470 static void iwl_mvm_mac_tx(struct ieee80211_hw
*hw
,
471 struct ieee80211_tx_control
*control
,
474 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
475 struct ieee80211_sta
*sta
= control
->sta
;
476 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
477 struct ieee80211_hdr
*hdr
= (void *)skb
->data
;
479 if (iwl_mvm_is_radio_killed(mvm
)) {
480 IWL_DEBUG_DROP(mvm
, "Dropping - RF/CT KILL\n");
484 if (IEEE80211_SKB_CB(skb
)->hw_queue
== IWL_MVM_OFFCHANNEL_QUEUE
&&
485 !test_bit(IWL_MVM_STATUS_ROC_RUNNING
, &mvm
->status
))
488 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
489 if (unlikely(info
->flags
& IEEE80211_TX_CTL_NO_PS_BUFFER
&&
490 ieee80211_is_mgmt(hdr
->frame_control
) &&
491 !ieee80211_is_deauth(hdr
->frame_control
) &&
492 !ieee80211_is_disassoc(hdr
->frame_control
) &&
493 !ieee80211_is_action(hdr
->frame_control
)))
497 if (iwl_mvm_defer_tx(mvm
, sta
, skb
))
499 if (iwl_mvm_tx_skb(mvm
, skb
, sta
))
504 if (iwl_mvm_tx_skb_non_sta(mvm
, skb
))
508 ieee80211_free_txskb(hw
, skb
);
511 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg
*cfg
)
513 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
)
518 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg
*cfg
)
520 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
)
522 if (iwlwifi_mod_params
.disable_11n
& IWL_ENABLE_HT_TXAGG
)
525 /* enabled by default */
529 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw
*hw
,
530 struct ieee80211_vif
*vif
,
531 enum ieee80211_ampdu_mlme_action action
,
532 struct ieee80211_sta
*sta
, u16 tid
,
533 u16
*ssn
, u8 buf_size
)
535 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
537 bool tx_agg_ref
= false;
539 IWL_DEBUG_HT(mvm
, "A-MPDU action on addr %pM tid %d: action %d\n",
540 sta
->addr
, tid
, action
);
542 if (!(mvm
->nvm_data
->sku_cap_11n_enable
))
545 /* return from D0i3 before starting a new Tx aggregation */
547 case IEEE80211_AMPDU_TX_START
:
548 case IEEE80211_AMPDU_TX_STOP_CONT
:
549 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
550 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
551 case IEEE80211_AMPDU_TX_OPERATIONAL
:
552 iwl_mvm_ref(mvm
, IWL_MVM_REF_TX_AGG
);
556 * for tx start, wait synchronously until D0i3 exit to
557 * get the correct sequence number for the tid.
558 * additionally, some other ampdu actions use direct
559 * target access, which is not handled automatically
560 * by the trans layer (unlike commands), so wait for
561 * d0i3 exit in these cases as well.
563 if (!wait_event_timeout(mvm
->d0i3_exit_waitq
,
564 !test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
), HZ
)) {
566 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX_AGG
);
574 mutex_lock(&mvm
->mutex
);
577 case IEEE80211_AMPDU_RX_START
:
578 if (!iwl_enable_rx_ampdu(mvm
->cfg
)) {
582 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, *ssn
, true);
584 case IEEE80211_AMPDU_RX_STOP
:
585 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, 0, false);
587 case IEEE80211_AMPDU_TX_START
:
588 if (!iwl_enable_tx_ampdu(mvm
->cfg
)) {
592 ret
= iwl_mvm_sta_tx_agg_start(mvm
, vif
, sta
, tid
, ssn
);
594 case IEEE80211_AMPDU_TX_STOP_CONT
:
595 ret
= iwl_mvm_sta_tx_agg_stop(mvm
, vif
, sta
, tid
);
597 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
598 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
599 ret
= iwl_mvm_sta_tx_agg_flush(mvm
, vif
, sta
, tid
);
601 case IEEE80211_AMPDU_TX_OPERATIONAL
:
602 ret
= iwl_mvm_sta_tx_agg_oper(mvm
, vif
, sta
, tid
, buf_size
);
609 mutex_unlock(&mvm
->mutex
);
612 * If the tid is marked as started, we won't use it for offloaded
613 * traffic on the next D0i3 entry. It's safe to unref.
616 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX_AGG
);
621 static void iwl_mvm_cleanup_iterator(void *data
, u8
*mac
,
622 struct ieee80211_vif
*vif
)
624 struct iwl_mvm
*mvm
= data
;
625 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
627 mvmvif
->uploaded
= false;
628 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
630 /* does this make sense at all? */
633 spin_lock_bh(&mvm
->time_event_lock
);
634 iwl_mvm_te_clear_data(mvm
, &mvmvif
->time_event_data
);
635 spin_unlock_bh(&mvm
->time_event_lock
);
637 mvmvif
->phy_ctxt
= NULL
;
640 static void iwl_mvm_restart_cleanup(struct iwl_mvm
*mvm
)
642 #ifdef CONFIG_IWLWIFI_DEBUGFS
643 static char *env
[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL
};
645 iwl_mvm_fw_error_dump(mvm
);
647 /* notify the userspace about the error we had */
648 kobject_uevent_env(&mvm
->hw
->wiphy
->dev
.kobj
, KOBJ_CHANGE
, env
);
651 iwl_trans_stop_device(mvm
->trans
);
653 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
655 /* just in case one was running */
656 ieee80211_remain_on_channel_expired(mvm
->hw
);
658 ieee80211_iterate_active_interfaces_atomic(
659 mvm
->hw
, IEEE80211_IFACE_ITER_RESUME_ALL
,
660 iwl_mvm_cleanup_iterator
, mvm
);
662 mvm
->p2p_device_vif
= NULL
;
663 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
665 iwl_mvm_reset_phy_ctxts(mvm
);
666 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
667 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
669 ieee80211_wake_queues(mvm
->hw
);
671 /* cleanup all stale references (scan, roc), but keep the
672 * ucode_down ref until reconfig is complete */
673 iwl_mvm_unref_all_except(mvm
, IWL_MVM_REF_UCODE_DOWN
);
676 mvm
->rx_ba_sessions
= 0;
679 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
681 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
684 mutex_lock(&mvm
->mutex
);
686 /* Clean up some internal and mac80211 state on restart */
687 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
688 iwl_mvm_restart_cleanup(mvm
);
690 ret
= iwl_mvm_up(mvm
);
691 mutex_unlock(&mvm
->mutex
);
696 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw
*hw
)
698 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
701 mutex_lock(&mvm
->mutex
);
703 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
704 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
705 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
707 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
710 /* allow transport/FW low power modes */
711 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
713 mutex_unlock(&mvm
->mutex
);
716 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
718 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
720 flush_work(&mvm
->d0i3_exit_work
);
721 flush_work(&mvm
->async_handlers_wk
);
723 mutex_lock(&mvm
->mutex
);
725 /* disallow low power states when the FW is down */
726 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
728 /* async_handlers_wk is now blocked */
731 * The work item could be running or queued if the
732 * ROC time event stops just as we get here.
734 cancel_work_sync(&mvm
->roc_done_wk
);
736 iwl_trans_stop_device(mvm
->trans
);
738 iwl_mvm_async_handlers_purge(mvm
);
739 /* async_handlers_list is empty and will stay empty: HW is stopped */
741 /* the fw is stopped, the aux sta is dead: clean up driver state */
742 iwl_mvm_dealloc_int_sta(mvm
, &mvm
->aux_sta
);
744 mutex_unlock(&mvm
->mutex
);
747 * The worker might have been waiting for the mutex, let it run and
748 * discover that its list is now empty.
750 cancel_work_sync(&mvm
->async_handlers_wk
);
753 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
757 lockdep_assert_held(&mvm
->mutex
);
759 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
760 if (!mvm
->phy_ctxts
[i
].ref
)
761 return &mvm
->phy_ctxts
[i
];
763 IWL_ERR(mvm
, "No available PHY context\n");
767 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
770 /* FW is in charge of regulatory enforcement */
771 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd
= {
772 .mac_context_id
= iwl_mvm_vif_from_mac80211(vif
)->id
,
773 .pwr_restriction
= cpu_to_le16(tx_power
),
776 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, 0,
777 sizeof(reduce_txpwr_cmd
),
781 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
782 struct ieee80211_vif
*vif
)
784 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
785 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
789 * Not much to do here. The stack will not allow interface
790 * types or combinations that we didn't advertise, so we
791 * don't really have to check the types.
794 mutex_lock(&mvm
->mutex
);
796 /* Allocate resources for the MAC context, and add it to the fw */
797 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
801 /* Counting number of interfaces is needed for legacy PM */
802 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
806 * The AP binding flow can be done only after the beacon
807 * template is configured (which happens only in the mac80211
808 * start_ap() flow), and adding the broadcast station can happen
809 * only after the binding.
810 * In addition, since modifying the MAC before adding a bcast
811 * station is not allowed by the FW, delay the adding of MAC context to
812 * the point where we can also add the bcast station.
813 * In short: there's not much we can do at this point, other than
814 * allocating resources :)
816 if (vif
->type
== NL80211_IFTYPE_AP
||
817 vif
->type
== NL80211_IFTYPE_ADHOC
) {
818 u32 qmask
= iwl_mvm_mac_get_queues_mask(mvm
, vif
);
819 ret
= iwl_mvm_allocate_int_sta(mvm
, &mvmvif
->bcast_sta
,
821 ieee80211_vif_type_p2p(vif
));
823 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
827 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
831 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
835 ret
= iwl_mvm_power_update_mac(mvm
);
839 /* beacon filtering */
840 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
844 if (!mvm
->bf_allowed_vif
&&
845 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
) {
846 mvm
->bf_allowed_vif
= mvmvif
;
847 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
848 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
852 * P2P_DEVICE interface does not have a channel context assigned to it,
853 * so a dedicated PHY context is allocated to it and the corresponding
854 * MAC context is bound to it at this stage.
856 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
858 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
859 if (!mvmvif
->phy_ctxt
) {
864 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
865 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
869 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
, &mvmvif
->bcast_sta
);
873 /* Save a pointer to p2p device vif, so it can later be used to
874 * update the p2p device MAC when a GO is started/stopped */
875 mvm
->p2p_device_vif
= vif
;
878 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
882 iwl_mvm_binding_remove_vif(mvm
, vif
);
884 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
886 if (mvm
->bf_allowed_vif
== mvmvif
) {
887 mvm
->bf_allowed_vif
= NULL
;
888 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
889 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
892 mvmvif
->phy_ctxt
= NULL
;
893 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
895 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
898 iwl_mvm_mac_ctxt_release(mvm
, vif
);
900 mutex_unlock(&mvm
->mutex
);
905 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
906 struct ieee80211_vif
*vif
)
910 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++)
911 if (vif
->hw_queue
[ac
] != IEEE80211_INVAL_HW_QUEUE
)
912 tfd_msk
|= BIT(vif
->hw_queue
[ac
]);
914 if (vif
->cab_queue
!= IEEE80211_INVAL_HW_QUEUE
)
915 tfd_msk
|= BIT(vif
->cab_queue
);
918 mutex_lock(&mvm
->mutex
);
919 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, true);
920 mutex_unlock(&mvm
->mutex
);
923 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
925 * Flush the ROC worker which will flush the OFFCHANNEL queue.
926 * We assume here that all the packets sent to the OFFCHANNEL
927 * queue are sent in ROC session.
929 flush_work(&mvm
->roc_done_wk
);
932 * By now, all the AC queues are empty. The AGG queues are
933 * empty too. We already got all the Tx responses for all the
934 * packets in the queues. The drain work can have been
935 * triggered. Flush it.
937 flush_work(&mvm
->sta_drained_wk
);
941 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
942 struct ieee80211_vif
*vif
)
944 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
945 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
947 iwl_mvm_prepare_mac_removal(mvm
, vif
);
949 mutex_lock(&mvm
->mutex
);
951 if (mvm
->bf_allowed_vif
== mvmvif
) {
952 mvm
->bf_allowed_vif
= NULL
;
953 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
954 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
957 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
960 * For AP/GO interface, the tear down of the resources allocated to the
961 * interface is be handled as part of the stop_ap flow.
963 if (vif
->type
== NL80211_IFTYPE_AP
||
964 vif
->type
== NL80211_IFTYPE_ADHOC
) {
965 #ifdef CONFIG_NL80211_TESTMODE
966 if (vif
== mvm
->noa_vif
) {
968 mvm
->noa_duration
= 0;
971 iwl_mvm_dealloc_int_sta(mvm
, &mvmvif
->bcast_sta
);
975 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
976 mvm
->p2p_device_vif
= NULL
;
977 iwl_mvm_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
978 iwl_mvm_binding_remove_vif(mvm
, vif
);
979 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
980 mvmvif
->phy_ctxt
= NULL
;
983 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
986 iwl_mvm_power_update_mac(mvm
);
987 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
990 iwl_mvm_mac_ctxt_release(mvm
, vif
);
991 mutex_unlock(&mvm
->mutex
);
994 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
999 struct iwl_mvm_mc_iter_data
{
1000 struct iwl_mvm
*mvm
;
1004 static void iwl_mvm_mc_iface_iterator(void *_data
, u8
*mac
,
1005 struct ieee80211_vif
*vif
)
1007 struct iwl_mvm_mc_iter_data
*data
= _data
;
1008 struct iwl_mvm
*mvm
= data
->mvm
;
1009 struct iwl_mcast_filter_cmd
*cmd
= mvm
->mcast_filter_cmd
;
1012 /* if we don't have free ports, mcast frames will be dropped */
1013 if (WARN_ON_ONCE(data
->port_id
>= MAX_PORT_ID_NUM
))
1016 if (vif
->type
!= NL80211_IFTYPE_STATION
||
1017 !vif
->bss_conf
.assoc
)
1020 cmd
->port_id
= data
->port_id
++;
1021 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
1022 len
= roundup(sizeof(*cmd
) + cmd
->count
* ETH_ALEN
, 4);
1024 ret
= iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_ASYNC
, len
, cmd
);
1026 IWL_ERR(mvm
, "mcast filter cmd error. ret=%d\n", ret
);
1029 static void iwl_mvm_recalc_multicast(struct iwl_mvm
*mvm
)
1031 struct iwl_mvm_mc_iter_data iter_data
= {
1035 lockdep_assert_held(&mvm
->mutex
);
1037 if (WARN_ON_ONCE(!mvm
->mcast_filter_cmd
))
1040 ieee80211_iterate_active_interfaces_atomic(
1041 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1042 iwl_mvm_mc_iface_iterator
, &iter_data
);
1045 static u64
iwl_mvm_prepare_multicast(struct ieee80211_hw
*hw
,
1046 struct netdev_hw_addr_list
*mc_list
)
1048 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1049 struct iwl_mcast_filter_cmd
*cmd
;
1050 struct netdev_hw_addr
*addr
;
1051 int addr_count
= netdev_hw_addr_list_count(mc_list
);
1052 bool pass_all
= false;
1055 if (addr_count
> MAX_MCAST_FILTERING_ADDRESSES
) {
1060 len
= roundup(sizeof(*cmd
) + addr_count
* ETH_ALEN
, 4);
1061 cmd
= kzalloc(len
, GFP_ATOMIC
);
1067 return (u64
)(unsigned long)cmd
;
1070 netdev_hw_addr_list_for_each(addr
, mc_list
) {
1071 IWL_DEBUG_MAC80211(mvm
, "mcast addr (%d): %pM\n",
1072 cmd
->count
, addr
->addr
);
1073 memcpy(&cmd
->addr_list
[cmd
->count
* ETH_ALEN
],
1074 addr
->addr
, ETH_ALEN
);
1078 return (u64
)(unsigned long)cmd
;
1081 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
1082 unsigned int changed_flags
,
1083 unsigned int *total_flags
,
1086 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1087 struct iwl_mcast_filter_cmd
*cmd
= (void *)(unsigned long)multicast
;
1089 mutex_lock(&mvm
->mutex
);
1091 /* replace previous configuration */
1092 kfree(mvm
->mcast_filter_cmd
);
1093 mvm
->mcast_filter_cmd
= cmd
;
1098 iwl_mvm_recalc_multicast(mvm
);
1100 mutex_unlock(&mvm
->mutex
);
1104 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1105 struct iwl_bcast_iter_data
{
1106 struct iwl_mvm
*mvm
;
1107 struct iwl_bcast_filter_cmd
*cmd
;
1112 iwl_mvm_set_bcast_filter(struct ieee80211_vif
*vif
,
1113 const struct iwl_fw_bcast_filter
*in_filter
,
1114 struct iwl_fw_bcast_filter
*out_filter
)
1116 struct iwl_fw_bcast_filter_attr
*attr
;
1119 memcpy(out_filter
, in_filter
, sizeof(*out_filter
));
1121 for (i
= 0; i
< ARRAY_SIZE(out_filter
->attrs
); i
++) {
1122 attr
= &out_filter
->attrs
[i
];
1127 switch (attr
->reserved1
) {
1128 case cpu_to_le16(BC_FILTER_MAGIC_IP
):
1129 if (vif
->bss_conf
.arp_addr_cnt
!= 1) {
1134 attr
->val
= vif
->bss_conf
.arp_addr_list
[0];
1136 case cpu_to_le16(BC_FILTER_MAGIC_MAC
):
1137 attr
->val
= *(__be32
*)&vif
->addr
[2];
1142 attr
->reserved1
= 0;
1143 out_filter
->num_attrs
++;
1147 static void iwl_mvm_bcast_filter_iterator(void *_data
, u8
*mac
,
1148 struct ieee80211_vif
*vif
)
1150 struct iwl_bcast_iter_data
*data
= _data
;
1151 struct iwl_mvm
*mvm
= data
->mvm
;
1152 struct iwl_bcast_filter_cmd
*cmd
= data
->cmd
;
1153 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1154 struct iwl_fw_bcast_mac
*bcast_mac
;
1157 if (WARN_ON(mvmvif
->id
>= ARRAY_SIZE(cmd
->macs
)))
1160 bcast_mac
= &cmd
->macs
[mvmvif
->id
];
1162 /* enable filtering only for associated stations */
1163 if (vif
->type
!= NL80211_IFTYPE_STATION
|| !vif
->bss_conf
.assoc
)
1166 bcast_mac
->default_discard
= 1;
1168 /* copy all configured filters */
1169 for (i
= 0; mvm
->bcast_filters
[i
].attrs
[0].mask
; i
++) {
1171 * Make sure we don't exceed our filters limit.
1172 * if there is still a valid filter to be configured,
1173 * be on the safe side and just allow bcast for this mac.
1175 if (WARN_ON_ONCE(data
->current_filter
>=
1176 ARRAY_SIZE(cmd
->filters
))) {
1177 bcast_mac
->default_discard
= 0;
1178 bcast_mac
->attached_filters
= 0;
1182 iwl_mvm_set_bcast_filter(vif
,
1183 &mvm
->bcast_filters
[i
],
1184 &cmd
->filters
[data
->current_filter
]);
1186 /* skip current filter if it contains no attributes */
1187 if (!cmd
->filters
[data
->current_filter
].num_attrs
)
1190 /* attach the filter to current mac */
1191 bcast_mac
->attached_filters
|=
1192 cpu_to_le16(BIT(data
->current_filter
));
1194 data
->current_filter
++;
1198 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm
*mvm
,
1199 struct iwl_bcast_filter_cmd
*cmd
)
1201 struct iwl_bcast_iter_data iter_data
= {
1206 memset(cmd
, 0, sizeof(*cmd
));
1207 cmd
->max_bcast_filters
= ARRAY_SIZE(cmd
->filters
);
1208 cmd
->max_macs
= ARRAY_SIZE(cmd
->macs
);
1210 #ifdef CONFIG_IWLWIFI_DEBUGFS
1211 /* use debugfs filters/macs if override is configured */
1212 if (mvm
->dbgfs_bcast_filtering
.override
) {
1213 memcpy(cmd
->filters
, &mvm
->dbgfs_bcast_filtering
.cmd
.filters
,
1214 sizeof(cmd
->filters
));
1215 memcpy(cmd
->macs
, &mvm
->dbgfs_bcast_filtering
.cmd
.macs
,
1221 /* if no filters are configured, do nothing */
1222 if (!mvm
->bcast_filters
)
1225 /* configure and attach these filters for each associated sta vif */
1226 ieee80211_iterate_active_interfaces(
1227 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1228 iwl_mvm_bcast_filter_iterator
, &iter_data
);
1232 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1233 struct ieee80211_vif
*vif
)
1235 struct iwl_bcast_filter_cmd cmd
;
1237 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BCAST_FILTERING
))
1240 /* bcast filtering isn't supported for P2P client */
1244 if (!iwl_mvm_bcast_filter_build_cmd(mvm
, &cmd
))
1247 return iwl_mvm_send_cmd_pdu(mvm
, BCAST_FILTER_CMD
, 0,
1251 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1252 struct ieee80211_vif
*vif
)
1258 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
1259 struct ieee80211_vif
*vif
,
1260 struct ieee80211_bss_conf
*bss_conf
,
1263 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1267 * Re-calculate the tsf id, as the master-slave relations depend on the
1268 * beacon interval, which was not known when the station interface was
1271 if (changes
& BSS_CHANGED_ASSOC
&& bss_conf
->assoc
)
1272 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1274 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false);
1276 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1278 if (changes
& BSS_CHANGED_ASSOC
) {
1279 if (bss_conf
->assoc
) {
1280 /* add quota for this interface */
1281 ret
= iwl_mvm_update_quotas(mvm
, vif
);
1283 IWL_ERR(mvm
, "failed to update quotas\n");
1287 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
1290 * If we're restarting then the firmware will
1291 * obviously have lost synchronisation with
1292 * the AP. It will attempt to synchronise by
1293 * itself, but we can make it more reliable by
1294 * scheduling a session protection time event.
1296 * The firmware needs to receive a beacon to
1297 * catch up with synchronisation, use 110% of
1298 * the beacon interval.
1300 * Set a large maximum delay to allow for more
1301 * than a single interface.
1303 u32 dur
= (11 * vif
->bss_conf
.beacon_int
) / 10;
1304 iwl_mvm_protect_session(mvm
, vif
, dur
, dur
,
1308 iwl_mvm_sf_update(mvm
, vif
, false);
1309 iwl_mvm_power_vif_assoc(mvm
, vif
);
1311 iwl_mvm_ref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1312 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_STATION_COUNT
) {
1314 * If update fails - SF might be running in associated
1315 * mode while disassociated - which is forbidden.
1317 WARN_ONCE(iwl_mvm_sf_update(mvm
, vif
, false),
1318 "Failed to update SF upon disassociation\n");
1320 /* remove AP station now that the MAC is unassoc */
1321 ret
= iwl_mvm_rm_sta_id(mvm
, vif
, mvmvif
->ap_sta_id
);
1323 IWL_ERR(mvm
, "failed to remove AP station\n");
1325 if (mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
1326 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1327 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
1328 /* remove quota for this interface */
1329 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1331 IWL_ERR(mvm
, "failed to update quotas\n");
1334 iwl_mvm_unref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1337 iwl_mvm_recalc_multicast(mvm
);
1338 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1340 /* reset rssi values */
1341 mvmvif
->bf_data
.ave_beacon_signal
= 0;
1343 iwl_mvm_bt_coex_vif_change(mvm
);
1344 iwl_mvm_update_smps(mvm
, vif
, IWL_MVM_SMPS_REQ_TT
,
1345 IEEE80211_SMPS_AUTOMATIC
);
1346 } else if (changes
& BSS_CHANGED_BEACON_INFO
) {
1348 * We received a beacon _after_ association so
1349 * remove the session protection.
1351 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1352 &mvmvif
->time_event_data
);
1353 iwl_mvm_sf_update(mvm
, vif
, false);
1354 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
1355 } else if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_P2P_PS
|
1357 ret
= iwl_mvm_power_update_mac(mvm
);
1359 IWL_ERR(mvm
, "failed to update power mode\n");
1361 if (changes
& BSS_CHANGED_TXPOWER
) {
1362 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
1364 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
1367 if (changes
& BSS_CHANGED_CQM
) {
1368 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed\n");
1369 /* reset cqm events tracking */
1370 mvmvif
->bf_data
.last_cqm_event
= 0;
1371 if (mvmvif
->bf_data
.bf_enabled
) {
1372 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
1375 "failed to update CQM thresholds\n");
1379 if (changes
& BSS_CHANGED_ARP_FILTER
) {
1380 IWL_DEBUG_MAC80211(mvm
, "arp filter changed\n");
1381 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1385 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw
*hw
,
1386 struct ieee80211_vif
*vif
)
1388 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1389 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1392 mutex_lock(&mvm
->mutex
);
1394 /* Send the beacon template */
1395 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
1400 * Re-calculate the tsf id, as the master-slave relations depend on the
1401 * beacon interval, which was not known when the AP interface was added.
1403 if (vif
->type
== NL80211_IFTYPE_AP
)
1404 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1406 /* Add the mac context */
1407 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1411 /* Perform the binding */
1412 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1416 /* Send the bcast station. At this stage the TBTT and DTIM time events
1417 * are added and applied to the scheduler */
1418 ret
= iwl_mvm_send_bcast_sta(mvm
, vif
, &mvmvif
->bcast_sta
);
1422 /* must be set before quota calculations */
1423 mvmvif
->ap_ibss_active
= true;
1425 /* power updated needs to be done before quotas */
1426 iwl_mvm_power_update_mac(mvm
);
1428 ret
= iwl_mvm_update_quotas(mvm
, vif
);
1430 goto out_quota_failed
;
1432 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1433 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1434 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false);
1436 iwl_mvm_ref(mvm
, IWL_MVM_REF_AP_IBSS
);
1438 iwl_mvm_bt_coex_vif_change(mvm
);
1440 mutex_unlock(&mvm
->mutex
);
1444 iwl_mvm_power_update_mac(mvm
);
1445 mvmvif
->ap_ibss_active
= false;
1446 iwl_mvm_send_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
1448 iwl_mvm_binding_remove_vif(mvm
, vif
);
1450 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1452 mutex_unlock(&mvm
->mutex
);
1456 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw
*hw
,
1457 struct ieee80211_vif
*vif
)
1459 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1460 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1462 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1464 mutex_lock(&mvm
->mutex
);
1466 mvmvif
->ap_ibss_active
= false;
1468 iwl_mvm_bt_coex_vif_change(mvm
);
1470 iwl_mvm_unref(mvm
, IWL_MVM_REF_AP_IBSS
);
1472 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1473 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1474 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false);
1476 iwl_mvm_update_quotas(mvm
, NULL
);
1477 iwl_mvm_send_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
1478 iwl_mvm_binding_remove_vif(mvm
, vif
);
1480 iwl_mvm_power_update_mac(mvm
);
1482 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1484 mutex_unlock(&mvm
->mutex
);
1488 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm
*mvm
,
1489 struct ieee80211_vif
*vif
,
1490 struct ieee80211_bss_conf
*bss_conf
,
1493 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1495 /* Changes will be applied when the AP/IBSS is started */
1496 if (!mvmvif
->ap_ibss_active
)
1499 if (changes
& (BSS_CHANGED_ERP_CTS_PROT
| BSS_CHANGED_HT
|
1500 BSS_CHANGED_BANDWIDTH
) &&
1501 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false))
1502 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1504 /* Need to send a new beacon template to the FW */
1505 if (changes
& BSS_CHANGED_BEACON
&&
1506 iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
1507 IWL_WARN(mvm
, "Failed updating beacon data\n");
1510 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
1511 struct ieee80211_vif
*vif
,
1512 struct ieee80211_bss_conf
*bss_conf
,
1515 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1517 mutex_lock(&mvm
->mutex
);
1519 if (changes
& BSS_CHANGED_IDLE
&& !bss_conf
->idle
)
1520 iwl_mvm_sched_scan_stop(mvm
, true);
1522 switch (vif
->type
) {
1523 case NL80211_IFTYPE_STATION
:
1524 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
1526 case NL80211_IFTYPE_AP
:
1527 case NL80211_IFTYPE_ADHOC
:
1528 iwl_mvm_bss_info_changed_ap_ibss(mvm
, vif
, bss_conf
, changes
);
1531 /* shouldn't happen */
1535 mutex_unlock(&mvm
->mutex
);
1538 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
1539 struct ieee80211_vif
*vif
,
1540 struct cfg80211_scan_request
*req
)
1542 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1545 if (req
->n_channels
== 0 || req
->n_channels
> MAX_NUM_SCAN_CHANNELS
)
1548 mutex_lock(&mvm
->mutex
);
1550 switch (mvm
->scan_status
) {
1551 case IWL_MVM_SCAN_SCHED
:
1552 ret
= iwl_mvm_sched_scan_stop(mvm
, true);
1558 case IWL_MVM_SCAN_NONE
:
1565 iwl_mvm_ref(mvm
, IWL_MVM_REF_SCAN
);
1567 ret
= iwl_mvm_scan_request(mvm
, vif
, req
);
1569 iwl_mvm_unref(mvm
, IWL_MVM_REF_SCAN
);
1571 mutex_unlock(&mvm
->mutex
);
1572 /* make sure to flush the Rx handler before the next scan arrives */
1573 iwl_mvm_wait_for_async_handlers(mvm
);
1577 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
1578 struct ieee80211_vif
*vif
)
1580 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1582 mutex_lock(&mvm
->mutex
);
1584 iwl_mvm_cancel_scan(mvm
);
1586 mutex_unlock(&mvm
->mutex
);
1590 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
1591 struct ieee80211_sta
*sta
, u16 tids
,
1593 enum ieee80211_frame_release_type reason
,
1596 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1598 /* Called when we need to transmit (a) frame(s) from mac80211 */
1600 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
1601 tids
, more_data
, false);
1605 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw
*hw
,
1606 struct ieee80211_sta
*sta
, u16 tids
,
1608 enum ieee80211_frame_release_type reason
,
1611 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1613 /* Called when we need to transmit (a) frame(s) from agg queue */
1615 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
1616 tids
, more_data
, true);
1619 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
1620 struct ieee80211_vif
*vif
,
1621 enum sta_notify_cmd cmd
,
1622 struct ieee80211_sta
*sta
)
1624 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1625 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
1629 case STA_NOTIFY_SLEEP
:
1630 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
1631 ieee80211_sta_block_awake(hw
, sta
, true);
1632 spin_lock_bh(&mvmsta
->lock
);
1633 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
1634 struct iwl_mvm_tid_data
*tid_data
;
1636 tid_data
= &mvmsta
->tid_data
[tid
];
1637 if (tid_data
->state
!= IWL_AGG_ON
&&
1638 tid_data
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
1640 if (iwl_mvm_tid_queued(tid_data
) == 0)
1642 ieee80211_sta_set_buffered(sta
, tid
, true);
1644 spin_unlock_bh(&mvmsta
->lock
);
1646 * The fw updates the STA to be asleep. Tx packets on the Tx
1647 * queues to this station will not be transmitted. The fw will
1648 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1651 case STA_NOTIFY_AWAKE
:
1652 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
))
1654 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
1661 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw
*hw
,
1662 struct ieee80211_vif
*vif
,
1663 struct ieee80211_sta
*sta
)
1665 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1666 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
1669 * This is called before mac80211 does RCU synchronisation,
1670 * so here we already invalidate our internal RCU-protected
1671 * station pointer. The rest of the code will thus no longer
1672 * be able to find the station this way, and we don't rely
1673 * on further RCU synchronisation after the sta_state()
1674 * callback deleted the station.
1676 mutex_lock(&mvm
->mutex
);
1677 if (sta
== rcu_access_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
]))
1678 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
],
1680 mutex_unlock(&mvm
->mutex
);
1683 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
1684 struct ieee80211_vif
*vif
,
1685 struct ieee80211_sta
*sta
,
1686 enum ieee80211_sta_state old_state
,
1687 enum ieee80211_sta_state new_state
)
1689 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1690 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1693 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
1694 sta
->addr
, old_state
, new_state
);
1696 /* this would be a mac80211 bug ... but don't crash */
1697 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
1700 /* if a STA is being removed, reuse its ID */
1701 flush_work(&mvm
->sta_drained_wk
);
1703 mutex_lock(&mvm
->mutex
);
1704 if (old_state
== IEEE80211_STA_NOTEXIST
&&
1705 new_state
== IEEE80211_STA_NONE
) {
1707 * Firmware bug - it'll crash if the beacon interval is less
1708 * than 16. We can't avoid connecting at all, so refuse the
1709 * station state change, this will cause mac80211 to abandon
1710 * attempts to connect to this AP, and eventually wpa_s will
1711 * blacklist the AP...
1713 if (vif
->type
== NL80211_IFTYPE_STATION
&&
1714 vif
->bss_conf
.beacon_int
< 16) {
1716 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
1717 sta
->addr
, vif
->bss_conf
.beacon_int
);
1721 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
1722 } else if (old_state
== IEEE80211_STA_NONE
&&
1723 new_state
== IEEE80211_STA_AUTH
) {
1725 * EBS may be disabled due to previous failures reported by FW.
1726 * Reset EBS status here assuming environment has been changed.
1728 mvm
->last_ebs_successful
= true;
1730 } else if (old_state
== IEEE80211_STA_AUTH
&&
1731 new_state
== IEEE80211_STA_ASSOC
) {
1732 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
1734 iwl_mvm_rs_rate_init(mvm
, sta
,
1735 mvmvif
->phy_ctxt
->channel
->band
,
1737 } else if (old_state
== IEEE80211_STA_ASSOC
&&
1738 new_state
== IEEE80211_STA_AUTHORIZED
) {
1739 /* enable beacon filtering */
1740 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
1742 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
1743 new_state
== IEEE80211_STA_ASSOC
) {
1744 /* disable beacon filtering */
1745 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
, 0));
1747 } else if (old_state
== IEEE80211_STA_ASSOC
&&
1748 new_state
== IEEE80211_STA_AUTH
) {
1750 } else if (old_state
== IEEE80211_STA_AUTH
&&
1751 new_state
== IEEE80211_STA_NONE
) {
1753 } else if (old_state
== IEEE80211_STA_NONE
&&
1754 new_state
== IEEE80211_STA_NOTEXIST
) {
1755 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
1760 mutex_unlock(&mvm
->mutex
);
1765 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
1767 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1769 mvm
->rts_threshold
= value
;
1774 static void iwl_mvm_sta_rc_update(struct ieee80211_hw
*hw
,
1775 struct ieee80211_vif
*vif
,
1776 struct ieee80211_sta
*sta
, u32 changed
)
1778 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1780 if (vif
->type
== NL80211_IFTYPE_STATION
&&
1781 changed
& IEEE80211_RC_NSS_CHANGED
)
1782 iwl_mvm_sf_update(mvm
, vif
, false);
1785 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
1786 struct ieee80211_vif
*vif
, u16 ac
,
1787 const struct ieee80211_tx_queue_params
*params
)
1789 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1790 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1792 mvmvif
->queue_params
[ac
] = *params
;
1795 * No need to update right away, we'll get BSS_CHANGED_QOS
1796 * The exception is P2P_DEVICE interface which needs immediate update.
1798 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1801 mutex_lock(&mvm
->mutex
);
1802 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false);
1803 mutex_unlock(&mvm
->mutex
);
1809 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
1810 struct ieee80211_vif
*vif
)
1812 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1813 u32 duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
,
1814 200 + vif
->bss_conf
.beacon_int
);
1815 u32 min_duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
,
1816 100 + vif
->bss_conf
.beacon_int
);
1818 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
1821 mutex_lock(&mvm
->mutex
);
1822 /* Try really hard to protect the session and hear a beacon */
1823 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
, 500);
1824 mutex_unlock(&mvm
->mutex
);
1827 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw
*hw
,
1828 struct ieee80211_vif
*vif
,
1829 struct cfg80211_sched_scan_request
*req
,
1830 struct ieee80211_sched_scan_ies
*ies
)
1832 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1835 mutex_lock(&mvm
->mutex
);
1837 if (!iwl_mvm_is_idle(mvm
)) {
1842 switch (mvm
->scan_status
) {
1843 case IWL_MVM_SCAN_OS
:
1844 IWL_DEBUG_SCAN(mvm
, "Stopping previous scan for sched_scan\n");
1845 ret
= iwl_mvm_cancel_scan(mvm
);
1852 * iwl_mvm_rx_scan_complete() will be called soon but will
1853 * not reset the scan status as it won't be IWL_MVM_SCAN_OS
1854 * any more since we queue the next scan immediately (below).
1855 * We make sure it is called before the next scan starts by
1856 * flushing the async-handlers work.
1859 case IWL_MVM_SCAN_NONE
:
1866 mvm
->scan_status
= IWL_MVM_SCAN_SCHED
;
1868 ret
= iwl_mvm_config_sched_scan(mvm
, vif
, req
, ies
);
1872 ret
= iwl_mvm_config_sched_scan_profiles(mvm
, req
);
1876 ret
= iwl_mvm_sched_scan_start(mvm
, req
);
1880 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
1882 mutex_unlock(&mvm
->mutex
);
1883 /* make sure to flush the Rx handler before the next scan arrives */
1884 iwl_mvm_wait_for_async_handlers(mvm
);
1888 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw
*hw
,
1889 struct ieee80211_vif
*vif
)
1891 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1894 mutex_lock(&mvm
->mutex
);
1895 ret
= iwl_mvm_sched_scan_stop(mvm
, false);
1896 mutex_unlock(&mvm
->mutex
);
1897 iwl_mvm_wait_for_async_handlers(mvm
);
1902 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
1903 enum set_key_cmd cmd
,
1904 struct ieee80211_vif
*vif
,
1905 struct ieee80211_sta
*sta
,
1906 struct ieee80211_key_conf
*key
)
1908 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1911 if (iwlwifi_mod_params
.sw_crypto
) {
1912 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
1916 switch (key
->cipher
) {
1917 case WLAN_CIPHER_SUITE_TKIP
:
1918 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
1920 case WLAN_CIPHER_SUITE_CCMP
:
1921 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
1923 case WLAN_CIPHER_SUITE_AES_CMAC
:
1924 WARN_ON_ONCE(!(hw
->flags
& IEEE80211_HW_MFP_CAPABLE
));
1926 case WLAN_CIPHER_SUITE_WEP40
:
1927 case WLAN_CIPHER_SUITE_WEP104
:
1929 * Support for TX only, at least for now, so accept
1930 * the key and do nothing else. Then mac80211 will
1931 * pass it for TX but we don't have to use it for RX.
1935 /* currently FW supports only one optional cipher scheme */
1936 if (hw
->n_cipher_schemes
&&
1937 hw
->cipher_schemes
->cipher
== key
->cipher
)
1938 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
1943 mutex_lock(&mvm
->mutex
);
1947 if ((vif
->type
== NL80211_IFTYPE_ADHOC
||
1948 vif
->type
== NL80211_IFTYPE_AP
) && !sta
) {
1950 * GTK on AP interface is a TX-only key, return 0;
1951 * on IBSS they're per-station and because we're lazy
1952 * we don't support them for RX, so do the same.
1955 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
1959 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
1960 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, false);
1962 IWL_WARN(mvm
, "set key failed\n");
1964 * can't add key for RX, but we don't need it
1965 * in the device for TX so still return 0
1967 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
1973 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
1978 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
1979 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
1985 mutex_unlock(&mvm
->mutex
);
1989 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
1990 struct ieee80211_vif
*vif
,
1991 struct ieee80211_key_conf
*keyconf
,
1992 struct ieee80211_sta
*sta
,
1993 u32 iv32
, u16
*phase1key
)
1995 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1997 if (keyconf
->hw_key_idx
== STA_KEY_IDX_INVALID
)
2000 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
2004 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
2005 struct ieee80211_vif
*vif
,
2006 struct ieee80211_channel
*channel
,
2008 enum ieee80211_roc_type type
)
2010 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2011 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2012 struct cfg80211_chan_def chandef
;
2013 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2016 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
2019 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
) {
2020 IWL_ERR(mvm
, "vif isn't a P2P_DEVICE: %d\n", vif
->type
);
2024 mutex_lock(&mvm
->mutex
);
2026 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
2027 phy_ctxt
= &mvm
->phy_ctxts
[i
];
2028 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
2031 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
2033 * Unbind the P2P_DEVICE from the current PHY context,
2034 * and if the PHY context is not used remove it.
2036 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2037 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2040 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2042 /* Bind the P2P_DEVICE to the current PHY Context */
2043 mvmvif
->phy_ctxt
= phy_ctxt
;
2045 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2046 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2049 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2050 goto schedule_time_event
;
2054 /* Need to update the PHY context only if the ROC channel changed */
2055 if (channel
== mvmvif
->phy_ctxt
->channel
)
2056 goto schedule_time_event
;
2058 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
2061 * Change the PHY context configuration as it is currently referenced
2062 * only by the P2P Device MAC
2064 if (mvmvif
->phy_ctxt
->ref
== 1) {
2065 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
2071 * The PHY context is shared with other MACs. Need to remove the
2072 * P2P Device from the binding, allocate an new PHY context and
2073 * create a new binding
2075 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2081 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
2084 IWL_ERR(mvm
, "Failed to change PHY context\n");
2088 /* Unbind the P2P_DEVICE from the current PHY context */
2089 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2090 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2093 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2095 /* Bind the P2P_DEVICE to the new allocated PHY context */
2096 mvmvif
->phy_ctxt
= phy_ctxt
;
2098 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2099 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2102 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2105 schedule_time_event
:
2106 /* Schedule the time events */
2107 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
2110 mutex_unlock(&mvm
->mutex
);
2111 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2115 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
2117 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2119 IWL_DEBUG_MAC80211(mvm
, "enter\n");
2121 mutex_lock(&mvm
->mutex
);
2122 iwl_mvm_stop_p2p_roc(mvm
);
2123 mutex_unlock(&mvm
->mutex
);
2125 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2129 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
2130 struct ieee80211_chanctx_conf
*ctx
)
2132 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2133 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2134 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2137 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
2139 mutex_lock(&mvm
->mutex
);
2140 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2146 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2147 ctx
->rx_chains_static
,
2148 ctx
->rx_chains_dynamic
);
2150 IWL_ERR(mvm
, "Failed to add PHY context\n");
2154 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
2155 *phy_ctxt_id
= phy_ctxt
->id
;
2157 mutex_unlock(&mvm
->mutex
);
2161 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
2162 struct ieee80211_chanctx_conf
*ctx
)
2164 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2165 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2166 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2168 mutex_lock(&mvm
->mutex
);
2169 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
2170 mutex_unlock(&mvm
->mutex
);
2173 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
2174 struct ieee80211_chanctx_conf
*ctx
,
2177 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2178 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2179 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2181 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
2182 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
2183 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
2184 IEEE80211_CHANCTX_CHANGE_RADAR
|
2185 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH
)),
2186 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2187 phy_ctxt
->ref
, changed
))
2190 mutex_lock(&mvm
->mutex
);
2191 iwl_mvm_bt_coex_vif_change(mvm
);
2192 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2193 ctx
->rx_chains_static
,
2194 ctx
->rx_chains_dynamic
);
2195 mutex_unlock(&mvm
->mutex
);
2198 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
2199 struct ieee80211_vif
*vif
,
2200 struct ieee80211_chanctx_conf
*ctx
)
2202 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2203 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2204 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2205 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2208 mutex_lock(&mvm
->mutex
);
2210 mvmvif
->phy_ctxt
= phy_ctxt
;
2212 switch (vif
->type
) {
2213 case NL80211_IFTYPE_AP
:
2214 /* Unless it's a CSA flow we have nothing to do here */
2215 if (vif
->csa_active
) {
2216 mvmvif
->ap_ibss_active
= true;
2219 case NL80211_IFTYPE_ADHOC
:
2221 * The AP binding flow is handled as part of the start_ap flow
2222 * (in bss_info_changed), similarly for IBSS.
2226 case NL80211_IFTYPE_STATION
:
2227 case NL80211_IFTYPE_MONITOR
:
2234 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2239 * Power state must be updated before quotas,
2240 * otherwise fw will complain.
2242 iwl_mvm_power_update_mac(mvm
);
2244 /* Setting the quota at this stage is only required for monitor
2245 * interfaces. For the other types, the bss_info changed flow
2246 * will handle quota settings.
2248 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
2249 mvmvif
->monitor_active
= true;
2250 ret
= iwl_mvm_update_quotas(mvm
, vif
);
2252 goto out_remove_binding
;
2255 /* Handle binding during CSA */
2256 if (vif
->type
== NL80211_IFTYPE_AP
) {
2257 iwl_mvm_update_quotas(mvm
, vif
);
2258 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false);
2264 iwl_mvm_binding_remove_vif(mvm
, vif
);
2265 iwl_mvm_power_update_mac(mvm
);
2267 mutex_unlock(&mvm
->mutex
);
2269 mvmvif
->phy_ctxt
= NULL
;
2273 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
2274 struct ieee80211_vif
*vif
,
2275 struct ieee80211_chanctx_conf
*ctx
)
2277 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2278 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2280 mutex_lock(&mvm
->mutex
);
2282 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
2284 switch (vif
->type
) {
2285 case NL80211_IFTYPE_ADHOC
:
2287 case NL80211_IFTYPE_MONITOR
:
2288 mvmvif
->monitor_active
= false;
2289 iwl_mvm_update_quotas(mvm
, NULL
);
2291 case NL80211_IFTYPE_AP
:
2292 /* This part is triggered only during CSA */
2293 if (!vif
->csa_active
|| !mvmvif
->ap_ibss_active
)
2296 mvmvif
->ap_ibss_active
= false;
2297 iwl_mvm_update_quotas(mvm
, NULL
);
2298 /*TODO: bt_coex notification here? */
2303 iwl_mvm_binding_remove_vif(mvm
, vif
);
2306 mvmvif
->phy_ctxt
= NULL
;
2307 iwl_mvm_power_update_mac(mvm
);
2308 mutex_unlock(&mvm
->mutex
);
2311 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
2312 struct ieee80211_sta
*sta
,
2315 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2316 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
2318 if (!mvm_sta
|| !mvm_sta
->vif
) {
2319 IWL_ERR(mvm
, "Station is not associated to a vif\n");
2323 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
2326 #ifdef CONFIG_NL80211_TESTMODE
2327 static const struct nla_policy iwl_mvm_tm_policy
[IWL_MVM_TM_ATTR_MAX
+ 1] = {
2328 [IWL_MVM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
2329 [IWL_MVM_TM_ATTR_NOA_DURATION
] = { .type
= NLA_U32
},
2330 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
] = { .type
= NLA_U32
},
2333 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm
*mvm
,
2334 struct ieee80211_vif
*vif
,
2335 void *data
, int len
)
2337 struct nlattr
*tb
[IWL_MVM_TM_ATTR_MAX
+ 1];
2341 err
= nla_parse(tb
, IWL_MVM_TM_ATTR_MAX
, data
, len
, iwl_mvm_tm_policy
);
2345 if (!tb
[IWL_MVM_TM_ATTR_CMD
])
2348 switch (nla_get_u32(tb
[IWL_MVM_TM_ATTR_CMD
])) {
2349 case IWL_MVM_TM_CMD_SET_NOA
:
2350 if (!vif
|| vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
||
2351 !vif
->bss_conf
.enable_beacon
||
2352 !tb
[IWL_MVM_TM_ATTR_NOA_DURATION
])
2355 noa_duration
= nla_get_u32(tb
[IWL_MVM_TM_ATTR_NOA_DURATION
]);
2356 if (noa_duration
>= vif
->bss_conf
.beacon_int
)
2359 mvm
->noa_duration
= noa_duration
;
2362 return iwl_mvm_update_quotas(mvm
, NULL
);
2363 case IWL_MVM_TM_CMD_SET_BEACON_FILTER
:
2364 /* must be associated client vif - ignore authorized */
2365 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
||
2366 !vif
->bss_conf
.assoc
|| !vif
->bss_conf
.dtim_period
||
2367 !tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
])
2370 if (nla_get_u32(tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
]))
2371 return iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
2372 return iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
2378 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw
*hw
,
2379 struct ieee80211_vif
*vif
,
2380 void *data
, int len
)
2382 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2385 mutex_lock(&mvm
->mutex
);
2386 err
= __iwl_mvm_mac_testmode_cmd(mvm
, vif
, data
, len
);
2387 mutex_unlock(&mvm
->mutex
);
2393 static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw
*hw
,
2394 struct ieee80211_vif
*vif
,
2395 struct cfg80211_chan_def
*chandef
)
2397 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2399 mutex_lock(&mvm
->mutex
);
2400 if (WARN(mvm
->csa_vif
&& mvm
->csa_vif
->csa_active
,
2401 "Another CSA is already in progress"))
2404 IWL_DEBUG_MAC80211(mvm
, "CSA started to freq %d\n",
2405 chandef
->center_freq1
);
2409 mutex_unlock(&mvm
->mutex
);
2412 static void iwl_mvm_mac_flush(struct ieee80211_hw
*hw
,
2413 struct ieee80211_vif
*vif
, u32 queues
, bool drop
)
2415 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2416 struct iwl_mvm_vif
*mvmvif
;
2417 struct iwl_mvm_sta
*mvmsta
;
2419 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
)
2422 mutex_lock(&mvm
->mutex
);
2423 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2424 mvmsta
= iwl_mvm_sta_from_staid_protected(mvm
, mvmvif
->ap_sta_id
);
2426 if (WARN_ON_ONCE(!mvmsta
))
2430 if (iwl_mvm_flush_tx_path(mvm
, mvmsta
->tfd_queue_msk
, true))
2431 IWL_ERR(mvm
, "flush request fail\n");
2433 iwl_trans_wait_tx_queue_empty(mvm
->trans
,
2434 mvmsta
->tfd_queue_msk
);
2437 mutex_unlock(&mvm
->mutex
);
2440 const struct ieee80211_ops iwl_mvm_hw_ops
= {
2441 .tx
= iwl_mvm_mac_tx
,
2442 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
2443 .start
= iwl_mvm_mac_start
,
2444 .restart_complete
= iwl_mvm_mac_restart_complete
,
2445 .stop
= iwl_mvm_mac_stop
,
2446 .add_interface
= iwl_mvm_mac_add_interface
,
2447 .remove_interface
= iwl_mvm_mac_remove_interface
,
2448 .config
= iwl_mvm_mac_config
,
2449 .prepare_multicast
= iwl_mvm_prepare_multicast
,
2450 .configure_filter
= iwl_mvm_configure_filter
,
2451 .bss_info_changed
= iwl_mvm_bss_info_changed
,
2452 .hw_scan
= iwl_mvm_mac_hw_scan
,
2453 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
2454 .sta_pre_rcu_remove
= iwl_mvm_sta_pre_rcu_remove
,
2455 .sta_state
= iwl_mvm_mac_sta_state
,
2456 .sta_notify
= iwl_mvm_mac_sta_notify
,
2457 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
2458 .release_buffered_frames
= iwl_mvm_mac_release_buffered_frames
,
2459 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
2460 .sta_rc_update
= iwl_mvm_sta_rc_update
,
2461 .conf_tx
= iwl_mvm_mac_conf_tx
,
2462 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
2463 .flush
= iwl_mvm_mac_flush
,
2464 .sched_scan_start
= iwl_mvm_mac_sched_scan_start
,
2465 .sched_scan_stop
= iwl_mvm_mac_sched_scan_stop
,
2466 .set_key
= iwl_mvm_mac_set_key
,
2467 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
2468 .remain_on_channel
= iwl_mvm_roc
,
2469 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
2470 .add_chanctx
= iwl_mvm_add_chanctx
,
2471 .remove_chanctx
= iwl_mvm_remove_chanctx
,
2472 .change_chanctx
= iwl_mvm_change_chanctx
,
2473 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
2474 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
2476 .start_ap
= iwl_mvm_start_ap_ibss
,
2477 .stop_ap
= iwl_mvm_stop_ap_ibss
,
2478 .join_ibss
= iwl_mvm_start_ap_ibss
,
2479 .leave_ibss
= iwl_mvm_stop_ap_ibss
,
2481 .set_tim
= iwl_mvm_set_tim
,
2483 .channel_switch_beacon
= iwl_mvm_channel_switch_beacon
,
2485 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd
)
2487 #ifdef CONFIG_PM_SLEEP
2489 .suspend
= iwl_mvm_suspend
,
2490 .resume
= iwl_mvm_resume
,
2491 .set_wakeup
= iwl_mvm_set_wakeup
,
2492 .set_rekey_data
= iwl_mvm_set_rekey_data
,
2493 #if IS_ENABLED(CONFIG_IPV6)
2494 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
2496 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,