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>
73 #include "iwl-op-mode.h"
77 #include "time-event.h"
78 #include "iwl-eeprom-parse.h"
79 #include "fw-api-scan.h"
80 #include "iwl-phy-db.h"
83 static const struct ieee80211_iface_limit iwl_mvm_limits
[] = {
86 .types
= BIT(NL80211_IFTYPE_STATION
),
90 .types
= BIT(NL80211_IFTYPE_AP
) |
91 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
92 BIT(NL80211_IFTYPE_P2P_GO
),
96 .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
),
100 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations
[] = {
102 .num_different_channels
= 1,
104 .limits
= iwl_mvm_limits
,
105 .n_limits
= ARRAY_SIZE(iwl_mvm_limits
),
109 #ifdef CONFIG_PM_SLEEP
110 static const struct nl80211_wowlan_tcp_data_token_feature
111 iwl_mvm_wowlan_tcp_token_feature
= {
114 .bufsize
= IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS
,
117 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support
= {
118 .tok
= &iwl_mvm_wowlan_tcp_token_feature
,
119 .data_payload_max
= IWL_WOWLAN_TCP_MAX_PACKET_LEN
-
120 sizeof(struct ethhdr
) -
121 sizeof(struct iphdr
) -
122 sizeof(struct tcphdr
),
123 .data_interval_max
= 65535, /* __le16 in API */
124 .wake_payload_max
= IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN
-
125 sizeof(struct ethhdr
) -
126 sizeof(struct iphdr
) -
127 sizeof(struct tcphdr
),
132 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
134 * Use the reserved field to indicate magic values.
135 * these values will only be used internally by the driver,
136 * and won't make it to the fw (reserved will be 0).
137 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
138 * be the vif's ip address. in case there is not a single
139 * ip address (0, or more than 1), this attribute will
141 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
142 * the LSB bytes of the vif's mac address
145 BC_FILTER_MAGIC_NONE
= 0,
150 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters
[] = {
154 .frame_type
= BCAST_FILTER_FRAME_TYPE_ALL
,
157 /* frame type - arp, hw type - ethernet */
159 BCAST_FILTER_OFFSET_PAYLOAD_START
,
160 .offset
= sizeof(rfc1042_header
),
161 .val
= cpu_to_be32(0x08060001),
162 .mask
= cpu_to_be32(0xffffffff),
167 BCAST_FILTER_OFFSET_PAYLOAD_START
,
168 .offset
= sizeof(rfc1042_header
) + 2 +
169 sizeof(struct arphdr
) +
170 ETH_ALEN
+ sizeof(__be32
) +
172 .mask
= cpu_to_be32(0xffffffff),
173 /* mark it as special field */
174 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_IP
),
179 /* dhcp offer bcast */
181 .frame_type
= BCAST_FILTER_FRAME_TYPE_IPV4
,
184 /* udp dest port - 68 (bootp client)*/
185 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
186 .offset
= offsetof(struct udphdr
, dest
),
187 .val
= cpu_to_be32(0x00440000),
188 .mask
= cpu_to_be32(0xffff0000),
191 /* dhcp - lsb bytes of client hw address */
192 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
194 .mask
= cpu_to_be32(0xffffffff),
195 /* mark it as special field */
196 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_MAC
),
200 /* last filter must be empty */
205 void iwl_mvm_ref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
207 if (!mvm
->trans
->cfg
->d0i3
)
210 IWL_DEBUG_RPM(mvm
, "Take mvm reference - type %d\n", ref_type
);
211 WARN_ON(test_and_set_bit(ref_type
, mvm
->ref_bitmap
));
212 iwl_trans_ref(mvm
->trans
);
215 void iwl_mvm_unref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
217 if (!mvm
->trans
->cfg
->d0i3
)
220 IWL_DEBUG_RPM(mvm
, "Leave mvm reference - type %d\n", ref_type
);
221 WARN_ON(!test_and_clear_bit(ref_type
, mvm
->ref_bitmap
));
222 iwl_trans_unref(mvm
->trans
);
226 iwl_mvm_unref_all_except(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref
)
230 if (!mvm
->trans
->cfg
->d0i3
)
233 for_each_set_bit(i
, mvm
->ref_bitmap
, IWL_MVM_REF_COUNT
) {
237 IWL_DEBUG_RPM(mvm
, "Cleanup: remove mvm ref type %d\n", i
);
238 clear_bit(i
, mvm
->ref_bitmap
);
239 iwl_trans_unref(mvm
->trans
);
243 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm
*mvm
)
247 memset(mvm
->phy_ctxts
, 0, sizeof(mvm
->phy_ctxts
));
248 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
249 mvm
->phy_ctxts
[i
].id
= i
;
250 mvm
->phy_ctxts
[i
].ref
= 0;
254 static int iwl_mvm_max_scan_ie_len(struct iwl_mvm
*mvm
)
256 /* we create the 802.11 header and SSID element */
257 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID
)
258 return mvm
->fw
->ucode_capa
.max_probe_length
- 24 - 2;
259 return mvm
->fw
->ucode_capa
.max_probe_length
- 24 - 34;
262 int iwl_mvm_mac_setup_register(struct iwl_mvm
*mvm
)
264 struct ieee80211_hw
*hw
= mvm
->hw
;
267 /* Tell mac80211 our characteristics */
268 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
269 IEEE80211_HW_SPECTRUM_MGMT
|
270 IEEE80211_HW_REPORTS_TX_ACK_STATUS
|
271 IEEE80211_HW_QUEUE_CONTROL
|
272 IEEE80211_HW_WANT_MONITOR_VIF
|
273 IEEE80211_HW_SUPPORTS_PS
|
274 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
|
275 IEEE80211_HW_AMPDU_AGGREGATION
|
276 IEEE80211_HW_TIMING_BEACON_ONLY
|
277 IEEE80211_HW_CONNECTION_MONITOR
|
278 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
279 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
281 hw
->queues
= mvm
->first_agg_queue
;
282 hw
->offchannel_tx_hw_queue
= IWL_MVM_OFFCHANNEL_QUEUE
;
283 hw
->rate_control_algorithm
= "iwl-mvm-rs";
286 * Enable 11w if advertised by firmware and software crypto
287 * is not enabled (as the firmware will interpret some mgmt
288 * packets, so enabling it with software crypto isn't safe)
290 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_MFP
&&
291 !iwlwifi_mod_params
.sw_crypto
)
292 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
294 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT
) {
295 hw
->flags
|= IEEE80211_HW_SUPPORTS_UAPSD
;
296 hw
->uapsd_queues
= IWL_UAPSD_AC_INFO
;
297 hw
->uapsd_max_sp_len
= IWL_UAPSD_MAX_SP
;
300 hw
->sta_data_size
= sizeof(struct iwl_mvm_sta
);
301 hw
->vif_data_size
= sizeof(struct iwl_mvm_vif
);
302 hw
->chanctx_data_size
= sizeof(u16
);
304 hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
305 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
306 BIT(NL80211_IFTYPE_AP
) |
307 BIT(NL80211_IFTYPE_P2P_GO
) |
308 BIT(NL80211_IFTYPE_P2P_DEVICE
);
310 /* IBSS has bugs in older versions */
311 if (IWL_UCODE_API(mvm
->fw
->ucode_ver
) >= 8)
312 hw
->wiphy
->interface_modes
|= BIT(NL80211_IFTYPE_ADHOC
);
314 hw
->wiphy
->flags
|= WIPHY_FLAG_IBSS_RSN
;
315 hw
->wiphy
->regulatory_flags
|= REGULATORY_CUSTOM_REG
|
316 REGULATORY_DISABLE_BEACON_HINTS
;
318 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_GO_UAPSD
)
319 hw
->wiphy
->flags
|= WIPHY_FLAG_AP_UAPSD
;
321 hw
->wiphy
->iface_combinations
= iwl_mvm_iface_combinations
;
322 hw
->wiphy
->n_iface_combinations
=
323 ARRAY_SIZE(iwl_mvm_iface_combinations
);
325 hw
->wiphy
->max_remain_on_channel_duration
= 10000;
326 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
328 /* Extract MAC address */
329 memcpy(mvm
->addresses
[0].addr
, mvm
->nvm_data
->hw_addr
, ETH_ALEN
);
330 hw
->wiphy
->addresses
= mvm
->addresses
;
331 hw
->wiphy
->n_addresses
= 1;
333 /* Extract additional MAC addresses if available */
334 num_mac
= (mvm
->nvm_data
->n_hw_addrs
> 1) ?
335 min(IWL_MVM_MAX_ADDRESSES
, mvm
->nvm_data
->n_hw_addrs
) : 1;
337 for (i
= 1; i
< num_mac
; i
++) {
338 memcpy(mvm
->addresses
[i
].addr
, mvm
->addresses
[i
-1].addr
,
340 mvm
->addresses
[i
].addr
[5]++;
341 hw
->wiphy
->n_addresses
++;
344 iwl_mvm_reset_phy_ctxts(mvm
);
346 hw
->wiphy
->max_scan_ie_len
= iwl_mvm_max_scan_ie_len(mvm
);
348 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
350 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
351 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
352 &mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
];
353 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
354 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
355 &mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
];
357 hw
->wiphy
->hw_version
= mvm
->trans
->hw_id
;
359 if (iwlmvm_mod_params
.power_scheme
!= IWL_POWER_SCHEME_CAM
)
360 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
362 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
364 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_SCHED_SCAN
) {
365 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_SCHED_SCAN
;
366 hw
->wiphy
->max_sched_scan_ssids
= PROBE_OPTION_MAX
;
367 hw
->wiphy
->max_match_sets
= IWL_SCAN_MAX_PROFILES
;
368 /* we create the 802.11 header and zero length SSID IE. */
369 hw
->wiphy
->max_sched_scan_ie_len
=
370 SCAN_OFFLOAD_PROBE_REQ_SIZE
- 24 - 2;
373 hw
->wiphy
->features
|= NL80211_FEATURE_P2P_GO_CTWIN
|
374 NL80211_FEATURE_P2P_GO_OPPPS
|
375 NL80211_FEATURE_LOW_PRIORITY_SCAN
;
377 mvm
->rts_threshold
= IEEE80211_MAX_RTS_THRESHOLD
;
379 /* currently FW API supports only one optional cipher scheme */
380 if (mvm
->fw
->cs
[0].cipher
) {
381 mvm
->hw
->n_cipher_schemes
= 1;
382 mvm
->hw
->cipher_schemes
= &mvm
->fw
->cs
[0];
385 #ifdef CONFIG_PM_SLEEP
386 if (mvm
->fw
->img
[IWL_UCODE_WOWLAN
].sec
[0].len
&&
387 mvm
->trans
->ops
->d3_suspend
&&
388 mvm
->trans
->ops
->d3_resume
&&
389 device_can_wakeup(mvm
->trans
->dev
)) {
390 mvm
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
391 WIPHY_WOWLAN_DISCONNECT
|
392 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
393 WIPHY_WOWLAN_RFKILL_RELEASE
;
394 if (!iwlwifi_mod_params
.sw_crypto
)
395 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
396 WIPHY_WOWLAN_GTK_REKEY_FAILURE
|
397 WIPHY_WOWLAN_4WAY_HANDSHAKE
;
399 mvm
->wowlan
.n_patterns
= IWL_WOWLAN_MAX_PATTERNS
;
400 mvm
->wowlan
.pattern_min_len
= IWL_WOWLAN_MIN_PATTERN_LEN
;
401 mvm
->wowlan
.pattern_max_len
= IWL_WOWLAN_MAX_PATTERN_LEN
;
402 mvm
->wowlan
.tcp
= &iwl_mvm_wowlan_tcp_support
;
403 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
407 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
408 /* assign default bcast filtering configuration */
409 mvm
->bcast_filters
= iwl_mvm_default_bcast_filters
;
412 ret
= iwl_mvm_leds_init(mvm
);
416 ret
= ieee80211_register_hw(mvm
->hw
);
418 iwl_mvm_leds_exit(mvm
);
423 static void iwl_mvm_mac_tx(struct ieee80211_hw
*hw
,
424 struct ieee80211_tx_control
*control
,
427 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
428 struct ieee80211_sta
*sta
= control
->sta
;
429 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
430 struct ieee80211_hdr
*hdr
= (void *)skb
->data
;
432 if (iwl_mvm_is_radio_killed(mvm
)) {
433 IWL_DEBUG_DROP(mvm
, "Dropping - RF/CT KILL\n");
437 if (IEEE80211_SKB_CB(skb
)->hw_queue
== IWL_MVM_OFFCHANNEL_QUEUE
&&
438 !test_bit(IWL_MVM_STATUS_ROC_RUNNING
, &mvm
->status
))
441 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
442 if (unlikely(info
->flags
& IEEE80211_TX_CTL_NO_PS_BUFFER
&&
443 ieee80211_is_mgmt(hdr
->frame_control
) &&
444 !ieee80211_is_deauth(hdr
->frame_control
) &&
445 !ieee80211_is_disassoc(hdr
->frame_control
) &&
446 !ieee80211_is_action(hdr
->frame_control
)))
450 if (iwl_mvm_tx_skb(mvm
, skb
, sta
))
455 if (iwl_mvm_tx_skb_non_sta(mvm
, skb
))
459 ieee80211_free_txskb(hw
, skb
);
462 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw
*hw
,
463 struct ieee80211_vif
*vif
,
464 enum ieee80211_ampdu_mlme_action action
,
465 struct ieee80211_sta
*sta
, u16 tid
,
466 u16
*ssn
, u8 buf_size
)
468 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
471 IWL_DEBUG_HT(mvm
, "A-MPDU action on addr %pM tid %d: action %d\n",
472 sta
->addr
, tid
, action
);
474 if (!(mvm
->nvm_data
->sku_cap_11n_enable
))
477 mutex_lock(&mvm
->mutex
);
480 case IEEE80211_AMPDU_RX_START
:
481 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
) {
485 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, *ssn
, true);
487 case IEEE80211_AMPDU_RX_STOP
:
488 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, 0, false);
490 case IEEE80211_AMPDU_TX_START
:
491 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
) {
495 ret
= iwl_mvm_sta_tx_agg_start(mvm
, vif
, sta
, tid
, ssn
);
497 case IEEE80211_AMPDU_TX_STOP_CONT
:
498 ret
= iwl_mvm_sta_tx_agg_stop(mvm
, vif
, sta
, tid
);
500 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
501 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
502 ret
= iwl_mvm_sta_tx_agg_flush(mvm
, vif
, sta
, tid
);
504 case IEEE80211_AMPDU_TX_OPERATIONAL
:
505 ret
= iwl_mvm_sta_tx_agg_oper(mvm
, vif
, sta
, tid
, buf_size
);
512 mutex_unlock(&mvm
->mutex
);
517 static void iwl_mvm_cleanup_iterator(void *data
, u8
*mac
,
518 struct ieee80211_vif
*vif
)
520 struct iwl_mvm
*mvm
= data
;
521 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
523 mvmvif
->uploaded
= false;
524 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
526 /* does this make sense at all? */
529 spin_lock_bh(&mvm
->time_event_lock
);
530 iwl_mvm_te_clear_data(mvm
, &mvmvif
->time_event_data
);
531 spin_unlock_bh(&mvm
->time_event_lock
);
533 mvmvif
->phy_ctxt
= NULL
;
536 static void iwl_mvm_restart_cleanup(struct iwl_mvm
*mvm
)
538 iwl_trans_stop_device(mvm
->trans
);
540 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
542 /* just in case one was running */
543 ieee80211_remain_on_channel_expired(mvm
->hw
);
545 ieee80211_iterate_active_interfaces_atomic(
546 mvm
->hw
, IEEE80211_IFACE_ITER_RESUME_ALL
,
547 iwl_mvm_cleanup_iterator
, mvm
);
549 mvm
->p2p_device_vif
= NULL
;
551 iwl_mvm_reset_phy_ctxts(mvm
);
552 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
553 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
555 ieee80211_wake_queues(mvm
->hw
);
557 /* cleanup all stale references (scan, roc), but keep the
558 * ucode_down ref until reconfig is complete */
559 iwl_mvm_unref_all_except(mvm
, IWL_MVM_REF_UCODE_DOWN
);
562 mvm
->rx_ba_sessions
= 0;
565 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
567 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
570 mutex_lock(&mvm
->mutex
);
572 /* Clean up some internal and mac80211 state on restart */
573 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
574 iwl_mvm_restart_cleanup(mvm
);
576 ret
= iwl_mvm_up(mvm
);
577 mutex_unlock(&mvm
->mutex
);
582 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw
*hw
)
584 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
587 mutex_lock(&mvm
->mutex
);
589 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
590 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
592 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
595 /* allow transport/FW low power modes */
596 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
598 mutex_unlock(&mvm
->mutex
);
601 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
603 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
605 flush_work(&mvm
->async_handlers_wk
);
607 mutex_lock(&mvm
->mutex
);
609 /* disallow low power states when the FW is down */
610 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
612 /* async_handlers_wk is now blocked */
615 * The work item could be running or queued if the
616 * ROC time event stops just as we get here.
618 cancel_work_sync(&mvm
->roc_done_wk
);
620 iwl_trans_stop_device(mvm
->trans
);
622 iwl_mvm_async_handlers_purge(mvm
);
623 /* async_handlers_list is empty and will stay empty: HW is stopped */
625 /* the fw is stopped, the aux sta is dead: clean up driver state */
626 iwl_mvm_dealloc_int_sta(mvm
, &mvm
->aux_sta
);
628 mutex_unlock(&mvm
->mutex
);
631 * The worker might have been waiting for the mutex, let it run and
632 * discover that its list is now empty.
634 cancel_work_sync(&mvm
->async_handlers_wk
);
637 static void iwl_mvm_power_update_iterator(void *data
, u8
*mac
,
638 struct ieee80211_vif
*vif
)
640 struct iwl_mvm
*mvm
= data
;
642 iwl_mvm_power_update_mode(mvm
, vif
);
645 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
649 lockdep_assert_held(&mvm
->mutex
);
651 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
652 if (!mvm
->phy_ctxts
[i
].ref
)
653 return &mvm
->phy_ctxts
[i
];
655 IWL_ERR(mvm
, "No available PHY context\n");
659 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
662 /* FW is in charge of regulatory enforcement */
663 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd
= {
664 .mac_context_id
= iwl_mvm_vif_from_mac80211(vif
)->id
,
665 .pwr_restriction
= cpu_to_le16(tx_power
),
668 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, CMD_SYNC
,
669 sizeof(reduce_txpwr_cmd
),
673 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
674 struct ieee80211_vif
*vif
)
676 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
677 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
681 * Not much to do here. The stack will not allow interface
682 * types or combinations that we didn't advertise, so we
683 * don't really have to check the types.
686 mutex_lock(&mvm
->mutex
);
688 /* Allocate resources for the MAC context, and add it to the fw */
689 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
693 /* Counting number of interfaces is needed for legacy PM */
694 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
698 * The AP binding flow can be done only after the beacon
699 * template is configured (which happens only in the mac80211
700 * start_ap() flow), and adding the broadcast station can happen
701 * only after the binding.
702 * In addition, since modifying the MAC before adding a bcast
703 * station is not allowed by the FW, delay the adding of MAC context to
704 * the point where we can also add the bcast station.
705 * In short: there's not much we can do at this point, other than
706 * allocating resources :)
708 if (vif
->type
== NL80211_IFTYPE_AP
||
709 vif
->type
== NL80211_IFTYPE_ADHOC
) {
710 u32 qmask
= iwl_mvm_mac_get_queues_mask(mvm
, vif
);
711 ret
= iwl_mvm_allocate_int_sta(mvm
, &mvmvif
->bcast_sta
,
714 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
718 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
722 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
726 iwl_mvm_power_disable(mvm
, vif
);
728 /* beacon filtering */
729 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, CMD_SYNC
);
733 if (!mvm
->bf_allowed_vif
&&
734 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
&&
735 mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BF_UPDATED
){
736 mvm
->bf_allowed_vif
= mvmvif
;
737 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
738 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
742 * P2P_DEVICE interface does not have a channel context assigned to it,
743 * so a dedicated PHY context is allocated to it and the corresponding
744 * MAC context is bound to it at this stage.
746 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
748 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
749 if (!mvmvif
->phy_ctxt
) {
754 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
755 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
759 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
, &mvmvif
->bcast_sta
);
763 /* Save a pointer to p2p device vif, so it can later be used to
764 * update the p2p device MAC when a GO is started/stopped */
765 mvm
->p2p_device_vif
= vif
;
768 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
772 iwl_mvm_binding_remove_vif(mvm
, vif
);
774 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
776 if (mvm
->bf_allowed_vif
== mvmvif
) {
777 mvm
->bf_allowed_vif
= NULL
;
778 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
779 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
782 mvmvif
->phy_ctxt
= NULL
;
783 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
785 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
788 /* TODO: remove this when legacy PM will be discarded */
789 ieee80211_iterate_active_interfaces(
790 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
791 iwl_mvm_power_update_iterator
, mvm
);
793 iwl_mvm_mac_ctxt_release(mvm
, vif
);
795 mutex_unlock(&mvm
->mutex
);
800 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
801 struct ieee80211_vif
*vif
)
805 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++)
806 if (vif
->hw_queue
[ac
] != IEEE80211_INVAL_HW_QUEUE
)
807 tfd_msk
|= BIT(vif
->hw_queue
[ac
]);
809 if (vif
->cab_queue
!= IEEE80211_INVAL_HW_QUEUE
)
810 tfd_msk
|= BIT(vif
->cab_queue
);
813 mutex_lock(&mvm
->mutex
);
814 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, true);
815 mutex_unlock(&mvm
->mutex
);
818 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
820 * Flush the ROC worker which will flush the OFFCHANNEL queue.
821 * We assume here that all the packets sent to the OFFCHANNEL
822 * queue are sent in ROC session.
824 flush_work(&mvm
->roc_done_wk
);
827 * By now, all the AC queues are empty. The AGG queues are
828 * empty too. We already got all the Tx responses for all the
829 * packets in the queues. The drain work can have been
830 * triggered. Flush it.
832 flush_work(&mvm
->sta_drained_wk
);
836 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
837 struct ieee80211_vif
*vif
)
839 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
840 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
842 iwl_mvm_prepare_mac_removal(mvm
, vif
);
844 mutex_lock(&mvm
->mutex
);
846 if (mvm
->bf_allowed_vif
== mvmvif
) {
847 mvm
->bf_allowed_vif
= NULL
;
848 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
849 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
852 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
855 * For AP/GO interface, the tear down of the resources allocated to the
856 * interface is be handled as part of the stop_ap flow.
858 if (vif
->type
== NL80211_IFTYPE_AP
||
859 vif
->type
== NL80211_IFTYPE_ADHOC
) {
860 #ifdef CONFIG_NL80211_TESTMODE
861 if (vif
== mvm
->noa_vif
) {
863 mvm
->noa_duration
= 0;
866 iwl_mvm_dealloc_int_sta(mvm
, &mvmvif
->bcast_sta
);
870 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
871 mvm
->p2p_device_vif
= NULL
;
872 iwl_mvm_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
873 iwl_mvm_binding_remove_vif(mvm
, vif
);
874 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
875 mvmvif
->phy_ctxt
= NULL
;
878 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
881 /* TODO: remove this when legacy PM will be discarded */
882 ieee80211_iterate_active_interfaces(
883 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
884 iwl_mvm_power_update_iterator
, mvm
);
886 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
889 iwl_mvm_mac_ctxt_release(mvm
, vif
);
890 mutex_unlock(&mvm
->mutex
);
893 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
898 struct iwl_mvm_mc_iter_data
{
903 static void iwl_mvm_mc_iface_iterator(void *_data
, u8
*mac
,
904 struct ieee80211_vif
*vif
)
906 struct iwl_mvm_mc_iter_data
*data
= _data
;
907 struct iwl_mvm
*mvm
= data
->mvm
;
908 struct iwl_mcast_filter_cmd
*cmd
= mvm
->mcast_filter_cmd
;
911 /* if we don't have free ports, mcast frames will be dropped */
912 if (WARN_ON_ONCE(data
->port_id
>= MAX_PORT_ID_NUM
))
915 if (vif
->type
!= NL80211_IFTYPE_STATION
||
916 !vif
->bss_conf
.assoc
)
919 cmd
->port_id
= data
->port_id
++;
920 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
921 len
= roundup(sizeof(*cmd
) + cmd
->count
* ETH_ALEN
, 4);
923 ret
= iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_SYNC
, len
, cmd
);
925 IWL_ERR(mvm
, "mcast filter cmd error. ret=%d\n", ret
);
928 static void iwl_mvm_recalc_multicast(struct iwl_mvm
*mvm
)
930 struct iwl_mvm_mc_iter_data iter_data
= {
934 lockdep_assert_held(&mvm
->mutex
);
936 if (WARN_ON_ONCE(!mvm
->mcast_filter_cmd
))
939 ieee80211_iterate_active_interfaces(
940 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
941 iwl_mvm_mc_iface_iterator
, &iter_data
);
944 static u64
iwl_mvm_prepare_multicast(struct ieee80211_hw
*hw
,
945 struct netdev_hw_addr_list
*mc_list
)
947 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
948 struct iwl_mcast_filter_cmd
*cmd
;
949 struct netdev_hw_addr
*addr
;
950 int addr_count
= netdev_hw_addr_list_count(mc_list
);
951 bool pass_all
= false;
954 if (addr_count
> MAX_MCAST_FILTERING_ADDRESSES
) {
959 len
= roundup(sizeof(*cmd
) + addr_count
* ETH_ALEN
, 4);
960 cmd
= kzalloc(len
, GFP_ATOMIC
);
966 return (u64
)(unsigned long)cmd
;
969 netdev_hw_addr_list_for_each(addr
, mc_list
) {
970 IWL_DEBUG_MAC80211(mvm
, "mcast addr (%d): %pM\n",
971 cmd
->count
, addr
->addr
);
972 memcpy(&cmd
->addr_list
[cmd
->count
* ETH_ALEN
],
973 addr
->addr
, ETH_ALEN
);
977 return (u64
)(unsigned long)cmd
;
980 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
981 unsigned int changed_flags
,
982 unsigned int *total_flags
,
985 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
986 struct iwl_mcast_filter_cmd
*cmd
= (void *)(unsigned long)multicast
;
988 mutex_lock(&mvm
->mutex
);
990 /* replace previous configuration */
991 kfree(mvm
->mcast_filter_cmd
);
992 mvm
->mcast_filter_cmd
= cmd
;
997 iwl_mvm_recalc_multicast(mvm
);
999 mutex_unlock(&mvm
->mutex
);
1003 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1004 struct iwl_bcast_iter_data
{
1005 struct iwl_mvm
*mvm
;
1006 struct iwl_bcast_filter_cmd
*cmd
;
1011 iwl_mvm_set_bcast_filter(struct ieee80211_vif
*vif
,
1012 const struct iwl_fw_bcast_filter
*in_filter
,
1013 struct iwl_fw_bcast_filter
*out_filter
)
1015 struct iwl_fw_bcast_filter_attr
*attr
;
1018 memcpy(out_filter
, in_filter
, sizeof(*out_filter
));
1020 for (i
= 0; i
< ARRAY_SIZE(out_filter
->attrs
); i
++) {
1021 attr
= &out_filter
->attrs
[i
];
1026 switch (attr
->reserved1
) {
1027 case cpu_to_le16(BC_FILTER_MAGIC_IP
):
1028 if (vif
->bss_conf
.arp_addr_cnt
!= 1) {
1033 attr
->val
= vif
->bss_conf
.arp_addr_list
[0];
1035 case cpu_to_le16(BC_FILTER_MAGIC_MAC
):
1036 attr
->val
= *(__be32
*)&vif
->addr
[2];
1041 attr
->reserved1
= 0;
1042 out_filter
->num_attrs
++;
1046 static void iwl_mvm_bcast_filter_iterator(void *_data
, u8
*mac
,
1047 struct ieee80211_vif
*vif
)
1049 struct iwl_bcast_iter_data
*data
= _data
;
1050 struct iwl_mvm
*mvm
= data
->mvm
;
1051 struct iwl_bcast_filter_cmd
*cmd
= data
->cmd
;
1052 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1053 struct iwl_fw_bcast_mac
*bcast_mac
;
1056 if (WARN_ON(mvmvif
->id
>= ARRAY_SIZE(cmd
->macs
)))
1059 bcast_mac
= &cmd
->macs
[mvmvif
->id
];
1061 /* enable filtering only for associated stations */
1062 if (vif
->type
!= NL80211_IFTYPE_STATION
|| !vif
->bss_conf
.assoc
)
1065 bcast_mac
->default_discard
= 1;
1067 /* copy all configured filters */
1068 for (i
= 0; mvm
->bcast_filters
[i
].attrs
[0].mask
; i
++) {
1070 * Make sure we don't exceed our filters limit.
1071 * if there is still a valid filter to be configured,
1072 * be on the safe side and just allow bcast for this mac.
1074 if (WARN_ON_ONCE(data
->current_filter
>=
1075 ARRAY_SIZE(cmd
->filters
))) {
1076 bcast_mac
->default_discard
= 0;
1077 bcast_mac
->attached_filters
= 0;
1081 iwl_mvm_set_bcast_filter(vif
,
1082 &mvm
->bcast_filters
[i
],
1083 &cmd
->filters
[data
->current_filter
]);
1085 /* skip current filter if it contains no attributes */
1086 if (!cmd
->filters
[data
->current_filter
].num_attrs
)
1089 /* attach the filter to current mac */
1090 bcast_mac
->attached_filters
|=
1091 cpu_to_le16(BIT(data
->current_filter
));
1093 data
->current_filter
++;
1097 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm
*mvm
,
1098 struct iwl_bcast_filter_cmd
*cmd
)
1100 struct iwl_bcast_iter_data iter_data
= {
1105 memset(cmd
, 0, sizeof(*cmd
));
1106 cmd
->max_bcast_filters
= ARRAY_SIZE(cmd
->filters
);
1107 cmd
->max_macs
= ARRAY_SIZE(cmd
->macs
);
1109 #ifdef CONFIG_IWLWIFI_DEBUGFS
1110 /* use debugfs filters/macs if override is configured */
1111 if (mvm
->dbgfs_bcast_filtering
.override
) {
1112 memcpy(cmd
->filters
, &mvm
->dbgfs_bcast_filtering
.cmd
.filters
,
1113 sizeof(cmd
->filters
));
1114 memcpy(cmd
->macs
, &mvm
->dbgfs_bcast_filtering
.cmd
.macs
,
1120 /* if no filters are configured, do nothing */
1121 if (!mvm
->bcast_filters
)
1124 /* configure and attach these filters for each associated sta vif */
1125 ieee80211_iterate_active_interfaces(
1126 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1127 iwl_mvm_bcast_filter_iterator
, &iter_data
);
1131 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1132 struct ieee80211_vif
*vif
)
1134 struct iwl_bcast_filter_cmd cmd
;
1136 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BCAST_FILTERING
))
1139 if (!iwl_mvm_bcast_filter_build_cmd(mvm
, &cmd
))
1142 return iwl_mvm_send_cmd_pdu(mvm
, BCAST_FILTER_CMD
, CMD_SYNC
,
1146 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1147 struct ieee80211_vif
*vif
)
1153 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
1154 struct ieee80211_vif
*vif
,
1155 struct ieee80211_bss_conf
*bss_conf
,
1158 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1162 * Re-calculate the tsf id, as the master-slave relations depend on the
1163 * beacon interval, which was not known when the station interface was
1166 if (changes
& BSS_CHANGED_ASSOC
&& bss_conf
->assoc
)
1167 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1169 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
);
1171 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1173 if (changes
& BSS_CHANGED_ASSOC
) {
1174 if (bss_conf
->assoc
) {
1175 /* add quota for this interface */
1176 ret
= iwl_mvm_update_quotas(mvm
, vif
);
1178 IWL_ERR(mvm
, "failed to update quotas\n");
1182 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
1185 * If we're restarting then the firmware will
1186 * obviously have lost synchronisation with
1187 * the AP. It will attempt to synchronise by
1188 * itself, but we can make it more reliable by
1189 * scheduling a session protection time event.
1191 * The firmware needs to receive a beacon to
1192 * catch up with synchronisation, use 110% of
1193 * the beacon interval.
1195 * Set a large maximum delay to allow for more
1196 * than a single interface.
1198 u32 dur
= (11 * vif
->bss_conf
.beacon_int
) / 10;
1199 iwl_mvm_protect_session(mvm
, vif
, dur
, dur
,
1203 iwl_mvm_sf_update(mvm
, vif
, false);
1204 iwl_mvm_power_vif_assoc(mvm
, vif
);
1205 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_STATION_COUNT
) {
1207 * If update fails - SF might be running in associated
1208 * mode while disassociated - which is forbidden.
1210 WARN_ONCE(iwl_mvm_sf_update(mvm
, vif
, false),
1211 "Failed to update SF upon disassociation\n");
1213 /* remove AP station now that the MAC is unassoc */
1214 ret
= iwl_mvm_rm_sta_id(mvm
, vif
, mvmvif
->ap_sta_id
);
1216 IWL_ERR(mvm
, "failed to remove AP station\n");
1217 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
1218 /* remove quota for this interface */
1219 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1221 IWL_ERR(mvm
, "failed to update quotas\n");
1224 iwl_mvm_recalc_multicast(mvm
);
1225 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1227 /* reset rssi values */
1228 mvmvif
->bf_data
.ave_beacon_signal
= 0;
1230 if (!(mvm
->fw
->ucode_capa
.flags
&
1231 IWL_UCODE_TLV_FLAGS_PM_CMD_SUPPORT
)) {
1232 /* Workaround for FW bug, otherwise FW disables device
1233 * power save upon disassociation
1235 ret
= iwl_mvm_power_update_mode(mvm
, vif
);
1237 IWL_ERR(mvm
, "failed to update power mode\n");
1239 iwl_mvm_bt_coex_vif_change(mvm
);
1240 iwl_mvm_update_smps(mvm
, vif
, IWL_MVM_SMPS_REQ_TT
,
1241 IEEE80211_SMPS_AUTOMATIC
);
1242 } else if (changes
& BSS_CHANGED_BEACON_INFO
) {
1244 * We received a beacon _after_ association so
1245 * remove the session protection.
1247 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1248 &mvmvif
->time_event_data
);
1249 } else if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_P2P_PS
|
1251 ret
= iwl_mvm_power_update_mode(mvm
, vif
);
1253 IWL_ERR(mvm
, "failed to update power mode\n");
1255 if (changes
& BSS_CHANGED_TXPOWER
) {
1256 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
1258 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
1261 if (changes
& BSS_CHANGED_CQM
) {
1262 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed");
1263 /* reset cqm events tracking */
1264 mvmvif
->bf_data
.last_cqm_event
= 0;
1265 ret
= iwl_mvm_update_beacon_filter(mvm
, vif
, false, CMD_SYNC
);
1267 IWL_ERR(mvm
, "failed to update CQM thresholds\n");
1270 if (changes
& BSS_CHANGED_ARP_FILTER
) {
1271 IWL_DEBUG_MAC80211(mvm
, "arp filter changed");
1272 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1276 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw
*hw
,
1277 struct ieee80211_vif
*vif
)
1279 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1280 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1283 mutex_lock(&mvm
->mutex
);
1285 /* Send the beacon template */
1286 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
1291 * Re-calculate the tsf id, as the master-slave relations depend on the
1292 * beacon interval, which was not known when the AP interface was added.
1294 if (vif
->type
== NL80211_IFTYPE_AP
)
1295 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1297 /* Add the mac context */
1298 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1302 /* Perform the binding */
1303 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1307 mvmvif
->ap_ibss_active
= true;
1309 /* Send the bcast station. At this stage the TBTT and DTIM time events
1310 * are added and applied to the scheduler */
1311 ret
= iwl_mvm_send_bcast_sta(mvm
, vif
, &mvmvif
->bcast_sta
);
1315 /* must be set before quota calculations */
1316 mvmvif
->ap_ibss_active
= true;
1318 /* power updated needs to be done before quotas */
1319 mvm
->bound_vif_cnt
++;
1320 iwl_mvm_power_update_binding(mvm
, vif
, true);
1322 ret
= iwl_mvm_update_quotas(mvm
, vif
);
1324 goto out_quota_failed
;
1326 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1327 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1328 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
);
1330 iwl_mvm_bt_coex_vif_change(mvm
);
1332 mutex_unlock(&mvm
->mutex
);
1336 mvm
->bound_vif_cnt
--;
1337 iwl_mvm_power_update_binding(mvm
, vif
, false);
1338 mvmvif
->ap_ibss_active
= false;
1339 iwl_mvm_send_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
1341 iwl_mvm_binding_remove_vif(mvm
, vif
);
1343 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1345 mutex_unlock(&mvm
->mutex
);
1349 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw
*hw
,
1350 struct ieee80211_vif
*vif
)
1352 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1353 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1355 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1357 mutex_lock(&mvm
->mutex
);
1359 mvmvif
->ap_ibss_active
= false;
1361 iwl_mvm_bt_coex_vif_change(mvm
);
1363 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1364 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1365 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
);
1367 iwl_mvm_update_quotas(mvm
, NULL
);
1368 iwl_mvm_send_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
1369 iwl_mvm_binding_remove_vif(mvm
, vif
);
1371 mvm
->bound_vif_cnt
--;
1372 iwl_mvm_power_update_binding(mvm
, vif
, false);
1374 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1376 mutex_unlock(&mvm
->mutex
);
1380 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm
*mvm
,
1381 struct ieee80211_vif
*vif
,
1382 struct ieee80211_bss_conf
*bss_conf
,
1385 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1386 enum ieee80211_bss_change ht_change
= BSS_CHANGED_ERP_CTS_PROT
|
1388 BSS_CHANGED_BANDWIDTH
;
1391 /* Changes will be applied when the AP/IBSS is started */
1392 if (!mvmvif
->ap_ibss_active
)
1395 if (changes
& ht_change
) {
1396 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
);
1398 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1401 /* Need to send a new beacon template to the FW */
1402 if (changes
& BSS_CHANGED_BEACON
) {
1403 if (iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
1404 IWL_WARN(mvm
, "Failed updating beacon data\n");
1408 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
1409 struct ieee80211_vif
*vif
,
1410 struct ieee80211_bss_conf
*bss_conf
,
1413 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1415 mutex_lock(&mvm
->mutex
);
1417 switch (vif
->type
) {
1418 case NL80211_IFTYPE_STATION
:
1419 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
1421 case NL80211_IFTYPE_AP
:
1422 case NL80211_IFTYPE_ADHOC
:
1423 iwl_mvm_bss_info_changed_ap_ibss(mvm
, vif
, bss_conf
, changes
);
1426 /* shouldn't happen */
1430 mutex_unlock(&mvm
->mutex
);
1433 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
1434 struct ieee80211_vif
*vif
,
1435 struct cfg80211_scan_request
*req
)
1437 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1440 if (req
->n_channels
== 0 || req
->n_channels
> MAX_NUM_SCAN_CHANNELS
)
1443 mutex_lock(&mvm
->mutex
);
1445 if (mvm
->scan_status
== IWL_MVM_SCAN_NONE
)
1446 ret
= iwl_mvm_scan_request(mvm
, vif
, req
);
1450 mutex_unlock(&mvm
->mutex
);
1455 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
1456 struct ieee80211_vif
*vif
)
1458 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1460 mutex_lock(&mvm
->mutex
);
1462 iwl_mvm_cancel_scan(mvm
);
1464 mutex_unlock(&mvm
->mutex
);
1468 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
1469 struct ieee80211_sta
*sta
, u16 tids
,
1471 enum ieee80211_frame_release_type reason
,
1474 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1476 /* Called when we need to transmit (a) frame(s) from mac80211 */
1478 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
1479 tids
, more_data
, false);
1483 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw
*hw
,
1484 struct ieee80211_sta
*sta
, u16 tids
,
1486 enum ieee80211_frame_release_type reason
,
1489 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1491 /* Called when we need to transmit (a) frame(s) from agg queue */
1493 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
1494 tids
, more_data
, true);
1497 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
1498 struct ieee80211_vif
*vif
,
1499 enum sta_notify_cmd cmd
,
1500 struct ieee80211_sta
*sta
)
1502 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1503 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
1507 case STA_NOTIFY_SLEEP
:
1508 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
1509 ieee80211_sta_block_awake(hw
, sta
, true);
1510 spin_lock_bh(&mvmsta
->lock
);
1511 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
1512 struct iwl_mvm_tid_data
*tid_data
;
1514 tid_data
= &mvmsta
->tid_data
[tid
];
1515 if (tid_data
->state
!= IWL_AGG_ON
&&
1516 tid_data
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
1518 if (iwl_mvm_tid_queued(tid_data
) == 0)
1520 ieee80211_sta_set_buffered(sta
, tid
, true);
1522 spin_unlock_bh(&mvmsta
->lock
);
1524 * The fw updates the STA to be asleep. Tx packets on the Tx
1525 * queues to this station will not be transmitted. The fw will
1526 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1529 case STA_NOTIFY_AWAKE
:
1530 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
))
1532 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
1539 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw
*hw
,
1540 struct ieee80211_vif
*vif
,
1541 struct ieee80211_sta
*sta
)
1543 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1544 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
1547 * This is called before mac80211 does RCU synchronisation,
1548 * so here we already invalidate our internal RCU-protected
1549 * station pointer. The rest of the code will thus no longer
1550 * be able to find the station this way, and we don't rely
1551 * on further RCU synchronisation after the sta_state()
1552 * callback deleted the station.
1554 mutex_lock(&mvm
->mutex
);
1555 if (sta
== rcu_access_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
]))
1556 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
],
1558 mutex_unlock(&mvm
->mutex
);
1561 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
1562 struct ieee80211_vif
*vif
,
1563 struct ieee80211_sta
*sta
,
1564 enum ieee80211_sta_state old_state
,
1565 enum ieee80211_sta_state new_state
)
1567 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1568 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1571 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
1572 sta
->addr
, old_state
, new_state
);
1574 /* this would be a mac80211 bug ... but don't crash */
1575 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
1578 /* if a STA is being removed, reuse its ID */
1579 flush_work(&mvm
->sta_drained_wk
);
1581 mutex_lock(&mvm
->mutex
);
1582 if (old_state
== IEEE80211_STA_NOTEXIST
&&
1583 new_state
== IEEE80211_STA_NONE
) {
1585 * Firmware bug - it'll crash if the beacon interval is less
1586 * than 16. We can't avoid connecting at all, so refuse the
1587 * station state change, this will cause mac80211 to abandon
1588 * attempts to connect to this AP, and eventually wpa_s will
1589 * blacklist the AP...
1591 if (vif
->type
== NL80211_IFTYPE_STATION
&&
1592 vif
->bss_conf
.beacon_int
< 16) {
1594 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
1595 sta
->addr
, vif
->bss_conf
.beacon_int
);
1599 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
1600 } else if (old_state
== IEEE80211_STA_NONE
&&
1601 new_state
== IEEE80211_STA_AUTH
) {
1603 } else if (old_state
== IEEE80211_STA_AUTH
&&
1604 new_state
== IEEE80211_STA_ASSOC
) {
1605 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
1607 iwl_mvm_rs_rate_init(mvm
, sta
,
1608 mvmvif
->phy_ctxt
->channel
->band
,
1610 } else if (old_state
== IEEE80211_STA_ASSOC
&&
1611 new_state
== IEEE80211_STA_AUTHORIZED
) {
1612 /* enable beacon filtering */
1613 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, CMD_SYNC
));
1615 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
1616 new_state
== IEEE80211_STA_ASSOC
) {
1617 /* disable beacon filtering */
1618 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
, CMD_SYNC
));
1620 } else if (old_state
== IEEE80211_STA_ASSOC
&&
1621 new_state
== IEEE80211_STA_AUTH
) {
1623 } else if (old_state
== IEEE80211_STA_AUTH
&&
1624 new_state
== IEEE80211_STA_NONE
) {
1626 } else if (old_state
== IEEE80211_STA_NONE
&&
1627 new_state
== IEEE80211_STA_NOTEXIST
) {
1628 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
1633 mutex_unlock(&mvm
->mutex
);
1638 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
1640 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1642 mvm
->rts_threshold
= value
;
1647 static void iwl_mvm_sta_rc_update(struct ieee80211_hw
*hw
,
1648 struct ieee80211_vif
*vif
,
1649 struct ieee80211_sta
*sta
, u32 changed
)
1651 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1653 if (vif
->type
== NL80211_IFTYPE_STATION
&&
1654 changed
& IEEE80211_RC_NSS_CHANGED
)
1655 iwl_mvm_sf_update(mvm
, vif
, false);
1658 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
1659 struct ieee80211_vif
*vif
, u16 ac
,
1660 const struct ieee80211_tx_queue_params
*params
)
1662 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1663 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1665 mvmvif
->queue_params
[ac
] = *params
;
1668 * No need to update right away, we'll get BSS_CHANGED_QOS
1669 * The exception is P2P_DEVICE interface which needs immediate update.
1671 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1674 mutex_lock(&mvm
->mutex
);
1675 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
);
1676 mutex_unlock(&mvm
->mutex
);
1682 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
1683 struct ieee80211_vif
*vif
)
1685 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1686 u32 duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
,
1687 200 + vif
->bss_conf
.beacon_int
);
1688 u32 min_duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
,
1689 100 + vif
->bss_conf
.beacon_int
);
1691 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
1694 mutex_lock(&mvm
->mutex
);
1695 /* Try really hard to protect the session and hear a beacon */
1696 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
, 500);
1697 mutex_unlock(&mvm
->mutex
);
1700 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw
*hw
,
1701 struct ieee80211_vif
*vif
,
1702 struct cfg80211_sched_scan_request
*req
,
1703 struct ieee80211_sched_scan_ies
*ies
)
1705 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1708 mutex_lock(&mvm
->mutex
);
1710 if (mvm
->scan_status
!= IWL_MVM_SCAN_NONE
) {
1712 "SCHED SCAN request during internal scan - abort\n");
1717 mvm
->scan_status
= IWL_MVM_SCAN_SCHED
;
1719 ret
= iwl_mvm_config_sched_scan(mvm
, vif
, req
, ies
);
1723 ret
= iwl_mvm_config_sched_scan_profiles(mvm
, req
);
1727 ret
= iwl_mvm_sched_scan_start(mvm
, req
);
1731 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
1733 mutex_unlock(&mvm
->mutex
);
1737 static void iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw
*hw
,
1738 struct ieee80211_vif
*vif
)
1740 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1742 mutex_lock(&mvm
->mutex
);
1743 iwl_mvm_sched_scan_stop(mvm
);
1744 mutex_unlock(&mvm
->mutex
);
1747 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
1748 enum set_key_cmd cmd
,
1749 struct ieee80211_vif
*vif
,
1750 struct ieee80211_sta
*sta
,
1751 struct ieee80211_key_conf
*key
)
1753 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1756 if (iwlwifi_mod_params
.sw_crypto
) {
1757 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
1761 switch (key
->cipher
) {
1762 case WLAN_CIPHER_SUITE_TKIP
:
1763 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
1765 case WLAN_CIPHER_SUITE_CCMP
:
1766 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
1768 case WLAN_CIPHER_SUITE_AES_CMAC
:
1769 WARN_ON_ONCE(!(hw
->flags
& IEEE80211_HW_MFP_CAPABLE
));
1771 case WLAN_CIPHER_SUITE_WEP40
:
1772 case WLAN_CIPHER_SUITE_WEP104
:
1774 * Support for TX only, at least for now, so accept
1775 * the key and do nothing else. Then mac80211 will
1776 * pass it for TX but we don't have to use it for RX.
1780 /* currently FW supports only one optional cipher scheme */
1781 if (hw
->n_cipher_schemes
&&
1782 hw
->cipher_schemes
->cipher
== key
->cipher
)
1783 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
1788 mutex_lock(&mvm
->mutex
);
1792 if ((vif
->type
== NL80211_IFTYPE_ADHOC
||
1793 vif
->type
== NL80211_IFTYPE_AP
) && !sta
) {
1795 * GTK on AP interface is a TX-only key, return 0;
1796 * on IBSS they're per-station and because we're lazy
1797 * we don't support them for RX, so do the same.
1800 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
1804 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
1805 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, false);
1807 IWL_WARN(mvm
, "set key failed\n");
1809 * can't add key for RX, but we don't need it
1810 * in the device for TX so still return 0
1812 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
1818 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
1823 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
1824 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
1830 mutex_unlock(&mvm
->mutex
);
1834 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
1835 struct ieee80211_vif
*vif
,
1836 struct ieee80211_key_conf
*keyconf
,
1837 struct ieee80211_sta
*sta
,
1838 u32 iv32
, u16
*phase1key
)
1840 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1842 if (keyconf
->hw_key_idx
== STA_KEY_IDX_INVALID
)
1845 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
1849 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
1850 struct ieee80211_vif
*vif
,
1851 struct ieee80211_channel
*channel
,
1853 enum ieee80211_roc_type type
)
1855 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1856 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1857 struct cfg80211_chan_def chandef
;
1858 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
1861 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
1864 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
) {
1865 IWL_ERR(mvm
, "vif isn't a P2P_DEVICE: %d\n", vif
->type
);
1869 mutex_lock(&mvm
->mutex
);
1871 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
1872 phy_ctxt
= &mvm
->phy_ctxts
[i
];
1873 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
1876 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
1878 * Unbind the P2P_DEVICE from the current PHY context,
1879 * and if the PHY context is not used remove it.
1881 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
1882 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
1885 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1887 /* Bind the P2P_DEVICE to the current PHY Context */
1888 mvmvif
->phy_ctxt
= phy_ctxt
;
1890 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1891 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
1894 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1895 goto schedule_time_event
;
1899 /* Need to update the PHY context only if the ROC channel changed */
1900 if (channel
== mvmvif
->phy_ctxt
->channel
)
1901 goto schedule_time_event
;
1903 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
1906 * Change the PHY context configuration as it is currently referenced
1907 * only by the P2P Device MAC
1909 if (mvmvif
->phy_ctxt
->ref
== 1) {
1910 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
1916 * The PHY context is shared with other MACs. Need to remove the
1917 * P2P Device from the binding, allocate an new PHY context and
1918 * create a new binding
1920 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1926 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
1929 IWL_ERR(mvm
, "Failed to change PHY context\n");
1933 /* Unbind the P2P_DEVICE from the current PHY context */
1934 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
1935 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
1938 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1940 /* Bind the P2P_DEVICE to the new allocated PHY context */
1941 mvmvif
->phy_ctxt
= phy_ctxt
;
1943 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1944 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
1947 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1950 schedule_time_event
:
1951 /* Schedule the time events */
1952 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
1955 mutex_unlock(&mvm
->mutex
);
1956 IWL_DEBUG_MAC80211(mvm
, "leave\n");
1960 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
1962 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1964 IWL_DEBUG_MAC80211(mvm
, "enter\n");
1966 mutex_lock(&mvm
->mutex
);
1967 iwl_mvm_stop_p2p_roc(mvm
);
1968 mutex_unlock(&mvm
->mutex
);
1970 IWL_DEBUG_MAC80211(mvm
, "leave\n");
1974 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
1975 struct ieee80211_chanctx_conf
*ctx
)
1977 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1978 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
1979 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
1982 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
1984 mutex_lock(&mvm
->mutex
);
1985 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1991 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
1992 ctx
->rx_chains_static
,
1993 ctx
->rx_chains_dynamic
);
1995 IWL_ERR(mvm
, "Failed to add PHY context\n");
1999 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
2000 *phy_ctxt_id
= phy_ctxt
->id
;
2002 mutex_unlock(&mvm
->mutex
);
2006 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
2007 struct ieee80211_chanctx_conf
*ctx
)
2009 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2010 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2011 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2013 mutex_lock(&mvm
->mutex
);
2014 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
2015 mutex_unlock(&mvm
->mutex
);
2018 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
2019 struct ieee80211_chanctx_conf
*ctx
,
2022 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2023 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2024 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2026 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
2027 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
2028 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
2029 IEEE80211_CHANCTX_CHANGE_RADAR
|
2030 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH
)),
2031 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2032 phy_ctxt
->ref
, changed
))
2035 mutex_lock(&mvm
->mutex
);
2036 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2037 ctx
->rx_chains_static
,
2038 ctx
->rx_chains_dynamic
);
2039 iwl_mvm_bt_coex_vif_change(mvm
);
2040 mutex_unlock(&mvm
->mutex
);
2043 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
2044 struct ieee80211_vif
*vif
,
2045 struct ieee80211_chanctx_conf
*ctx
)
2047 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2048 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2049 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2050 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2053 mutex_lock(&mvm
->mutex
);
2055 mvmvif
->phy_ctxt
= phy_ctxt
;
2057 switch (vif
->type
) {
2058 case NL80211_IFTYPE_AP
:
2059 case NL80211_IFTYPE_ADHOC
:
2061 * The AP binding flow is handled as part of the start_ap flow
2062 * (in bss_info_changed), similarly for IBSS.
2066 case NL80211_IFTYPE_STATION
:
2067 case NL80211_IFTYPE_MONITOR
:
2074 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2079 * Power state must be updated before quotas,
2080 * otherwise fw will complain.
2082 mvm
->bound_vif_cnt
++;
2083 iwl_mvm_power_update_binding(mvm
, vif
, true);
2085 /* Setting the quota at this stage is only required for monitor
2086 * interfaces. For the other types, the bss_info changed flow
2087 * will handle quota settings.
2089 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
2090 mvmvif
->monitor_active
= true;
2091 ret
= iwl_mvm_update_quotas(mvm
, vif
);
2093 goto out_remove_binding
;
2099 iwl_mvm_binding_remove_vif(mvm
, vif
);
2100 mvm
->bound_vif_cnt
--;
2101 iwl_mvm_power_update_binding(mvm
, vif
, false);
2103 mutex_unlock(&mvm
->mutex
);
2105 mvmvif
->phy_ctxt
= NULL
;
2109 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
2110 struct ieee80211_vif
*vif
,
2111 struct ieee80211_chanctx_conf
*ctx
)
2113 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2114 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2116 mutex_lock(&mvm
->mutex
);
2118 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
2120 switch (vif
->type
) {
2121 case NL80211_IFTYPE_AP
:
2122 case NL80211_IFTYPE_ADHOC
:
2124 case NL80211_IFTYPE_MONITOR
:
2125 mvmvif
->monitor_active
= false;
2126 iwl_mvm_update_quotas(mvm
, NULL
);
2132 iwl_mvm_binding_remove_vif(mvm
, vif
);
2133 mvm
->bound_vif_cnt
--;
2134 iwl_mvm_power_update_binding(mvm
, vif
, false);
2137 mvmvif
->phy_ctxt
= NULL
;
2138 mutex_unlock(&mvm
->mutex
);
2141 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
2142 struct ieee80211_sta
*sta
,
2145 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2146 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
2148 if (!mvm_sta
|| !mvm_sta
->vif
) {
2149 IWL_ERR(mvm
, "Station is not associated to a vif\n");
2153 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
2156 #ifdef CONFIG_NL80211_TESTMODE
2157 static const struct nla_policy iwl_mvm_tm_policy
[IWL_MVM_TM_ATTR_MAX
+ 1] = {
2158 [IWL_MVM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
2159 [IWL_MVM_TM_ATTR_NOA_DURATION
] = { .type
= NLA_U32
},
2160 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
] = { .type
= NLA_U32
},
2163 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm
*mvm
,
2164 struct ieee80211_vif
*vif
,
2165 void *data
, int len
)
2167 struct nlattr
*tb
[IWL_MVM_TM_ATTR_MAX
+ 1];
2171 err
= nla_parse(tb
, IWL_MVM_TM_ATTR_MAX
, data
, len
, iwl_mvm_tm_policy
);
2175 if (!tb
[IWL_MVM_TM_ATTR_CMD
])
2178 switch (nla_get_u32(tb
[IWL_MVM_TM_ATTR_CMD
])) {
2179 case IWL_MVM_TM_CMD_SET_NOA
:
2180 if (!vif
|| vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
||
2181 !vif
->bss_conf
.enable_beacon
||
2182 !tb
[IWL_MVM_TM_ATTR_NOA_DURATION
])
2185 noa_duration
= nla_get_u32(tb
[IWL_MVM_TM_ATTR_NOA_DURATION
]);
2186 if (noa_duration
>= vif
->bss_conf
.beacon_int
)
2189 mvm
->noa_duration
= noa_duration
;
2192 return iwl_mvm_update_quotas(mvm
, NULL
);
2193 case IWL_MVM_TM_CMD_SET_BEACON_FILTER
:
2194 /* must be associated client vif - ignore authorized */
2195 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
||
2196 !vif
->bss_conf
.assoc
|| !vif
->bss_conf
.dtim_period
||
2197 !tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
])
2200 if (nla_get_u32(tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
]))
2201 return iwl_mvm_enable_beacon_filter(mvm
, vif
,
2203 return iwl_mvm_disable_beacon_filter(mvm
, vif
, CMD_SYNC
);
2209 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw
*hw
,
2210 struct ieee80211_vif
*vif
,
2211 void *data
, int len
)
2213 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2216 mutex_lock(&mvm
->mutex
);
2217 err
= __iwl_mvm_mac_testmode_cmd(mvm
, vif
, data
, len
);
2218 mutex_unlock(&mvm
->mutex
);
2224 struct ieee80211_ops iwl_mvm_hw_ops
= {
2225 .tx
= iwl_mvm_mac_tx
,
2226 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
2227 .start
= iwl_mvm_mac_start
,
2228 .restart_complete
= iwl_mvm_mac_restart_complete
,
2229 .stop
= iwl_mvm_mac_stop
,
2230 .add_interface
= iwl_mvm_mac_add_interface
,
2231 .remove_interface
= iwl_mvm_mac_remove_interface
,
2232 .config
= iwl_mvm_mac_config
,
2233 .prepare_multicast
= iwl_mvm_prepare_multicast
,
2234 .configure_filter
= iwl_mvm_configure_filter
,
2235 .bss_info_changed
= iwl_mvm_bss_info_changed
,
2236 .hw_scan
= iwl_mvm_mac_hw_scan
,
2237 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
2238 .sta_pre_rcu_remove
= iwl_mvm_sta_pre_rcu_remove
,
2239 .sta_state
= iwl_mvm_mac_sta_state
,
2240 .sta_notify
= iwl_mvm_mac_sta_notify
,
2241 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
2242 .release_buffered_frames
= iwl_mvm_mac_release_buffered_frames
,
2243 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
2244 .sta_rc_update
= iwl_mvm_sta_rc_update
,
2245 .conf_tx
= iwl_mvm_mac_conf_tx
,
2246 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
2247 .sched_scan_start
= iwl_mvm_mac_sched_scan_start
,
2248 .sched_scan_stop
= iwl_mvm_mac_sched_scan_stop
,
2249 .set_key
= iwl_mvm_mac_set_key
,
2250 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
2251 .remain_on_channel
= iwl_mvm_roc
,
2252 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
2253 .add_chanctx
= iwl_mvm_add_chanctx
,
2254 .remove_chanctx
= iwl_mvm_remove_chanctx
,
2255 .change_chanctx
= iwl_mvm_change_chanctx
,
2256 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
2257 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
2259 .start_ap
= iwl_mvm_start_ap_ibss
,
2260 .stop_ap
= iwl_mvm_stop_ap_ibss
,
2261 .join_ibss
= iwl_mvm_start_ap_ibss
,
2262 .leave_ibss
= iwl_mvm_stop_ap_ibss
,
2264 .set_tim
= iwl_mvm_set_tim
,
2266 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd
)
2268 #ifdef CONFIG_PM_SLEEP
2270 .suspend
= iwl_mvm_suspend
,
2271 .resume
= iwl_mvm_resume
,
2272 .set_wakeup
= iwl_mvm_set_wakeup
,
2273 .set_rekey_data
= iwl_mvm_set_rekey_data
,
2274 #if IS_ENABLED(CONFIG_IPV6)
2275 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
2277 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,