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
;
550 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
552 iwl_mvm_reset_phy_ctxts(mvm
);
553 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
554 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
556 ieee80211_wake_queues(mvm
->hw
);
558 /* cleanup all stale references (scan, roc), but keep the
559 * ucode_down ref until reconfig is complete */
560 iwl_mvm_unref_all_except(mvm
, IWL_MVM_REF_UCODE_DOWN
);
563 mvm
->rx_ba_sessions
= 0;
566 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
568 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
571 mutex_lock(&mvm
->mutex
);
573 /* Clean up some internal and mac80211 state on restart */
574 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
575 iwl_mvm_restart_cleanup(mvm
);
577 ret
= iwl_mvm_up(mvm
);
578 mutex_unlock(&mvm
->mutex
);
583 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw
*hw
)
585 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
588 mutex_lock(&mvm
->mutex
);
590 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
591 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
593 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
596 /* allow transport/FW low power modes */
597 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
599 mutex_unlock(&mvm
->mutex
);
602 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
604 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
606 flush_work(&mvm
->d0i3_exit_work
);
607 flush_work(&mvm
->async_handlers_wk
);
609 mutex_lock(&mvm
->mutex
);
611 /* disallow low power states when the FW is down */
612 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
614 /* async_handlers_wk is now blocked */
617 * The work item could be running or queued if the
618 * ROC time event stops just as we get here.
620 cancel_work_sync(&mvm
->roc_done_wk
);
622 iwl_trans_stop_device(mvm
->trans
);
624 iwl_mvm_async_handlers_purge(mvm
);
625 /* async_handlers_list is empty and will stay empty: HW is stopped */
627 /* the fw is stopped, the aux sta is dead: clean up driver state */
628 iwl_mvm_dealloc_int_sta(mvm
, &mvm
->aux_sta
);
630 mutex_unlock(&mvm
->mutex
);
633 * The worker might have been waiting for the mutex, let it run and
634 * discover that its list is now empty.
636 cancel_work_sync(&mvm
->async_handlers_wk
);
639 static void iwl_mvm_power_update_iterator(void *data
, u8
*mac
,
640 struct ieee80211_vif
*vif
)
642 struct iwl_mvm
*mvm
= data
;
644 iwl_mvm_power_update_mode(mvm
, vif
);
647 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
651 lockdep_assert_held(&mvm
->mutex
);
653 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
654 if (!mvm
->phy_ctxts
[i
].ref
)
655 return &mvm
->phy_ctxts
[i
];
657 IWL_ERR(mvm
, "No available PHY context\n");
661 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
664 /* FW is in charge of regulatory enforcement */
665 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd
= {
666 .mac_context_id
= iwl_mvm_vif_from_mac80211(vif
)->id
,
667 .pwr_restriction
= cpu_to_le16(tx_power
),
670 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, CMD_SYNC
,
671 sizeof(reduce_txpwr_cmd
),
675 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
676 struct ieee80211_vif
*vif
)
678 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
679 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
683 * Not much to do here. The stack will not allow interface
684 * types or combinations that we didn't advertise, so we
685 * don't really have to check the types.
688 mutex_lock(&mvm
->mutex
);
690 /* Allocate resources for the MAC context, and add it to the fw */
691 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
695 /* Counting number of interfaces is needed for legacy PM */
696 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
700 * The AP binding flow can be done only after the beacon
701 * template is configured (which happens only in the mac80211
702 * start_ap() flow), and adding the broadcast station can happen
703 * only after the binding.
704 * In addition, since modifying the MAC before adding a bcast
705 * station is not allowed by the FW, delay the adding of MAC context to
706 * the point where we can also add the bcast station.
707 * In short: there's not much we can do at this point, other than
708 * allocating resources :)
710 if (vif
->type
== NL80211_IFTYPE_AP
||
711 vif
->type
== NL80211_IFTYPE_ADHOC
) {
712 u32 qmask
= iwl_mvm_mac_get_queues_mask(mvm
, vif
);
713 ret
= iwl_mvm_allocate_int_sta(mvm
, &mvmvif
->bcast_sta
,
716 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
720 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
724 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
728 iwl_mvm_power_disable(mvm
, vif
);
730 /* beacon filtering */
731 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, CMD_SYNC
);
735 if (!mvm
->bf_allowed_vif
&&
736 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
&&
737 mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BF_UPDATED
){
738 mvm
->bf_allowed_vif
= mvmvif
;
739 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
740 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
744 * P2P_DEVICE interface does not have a channel context assigned to it,
745 * so a dedicated PHY context is allocated to it and the corresponding
746 * MAC context is bound to it at this stage.
748 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
750 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
751 if (!mvmvif
->phy_ctxt
) {
756 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
757 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
761 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
, &mvmvif
->bcast_sta
);
765 /* Save a pointer to p2p device vif, so it can later be used to
766 * update the p2p device MAC when a GO is started/stopped */
767 mvm
->p2p_device_vif
= vif
;
770 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
774 iwl_mvm_binding_remove_vif(mvm
, vif
);
776 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
778 if (mvm
->bf_allowed_vif
== mvmvif
) {
779 mvm
->bf_allowed_vif
= NULL
;
780 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
781 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
784 mvmvif
->phy_ctxt
= NULL
;
785 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
787 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
790 /* TODO: remove this when legacy PM will be discarded */
791 ieee80211_iterate_active_interfaces(
792 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
793 iwl_mvm_power_update_iterator
, mvm
);
795 iwl_mvm_mac_ctxt_release(mvm
, vif
);
797 mutex_unlock(&mvm
->mutex
);
802 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
803 struct ieee80211_vif
*vif
)
807 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++)
808 if (vif
->hw_queue
[ac
] != IEEE80211_INVAL_HW_QUEUE
)
809 tfd_msk
|= BIT(vif
->hw_queue
[ac
]);
811 if (vif
->cab_queue
!= IEEE80211_INVAL_HW_QUEUE
)
812 tfd_msk
|= BIT(vif
->cab_queue
);
815 mutex_lock(&mvm
->mutex
);
816 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, true);
817 mutex_unlock(&mvm
->mutex
);
820 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
822 * Flush the ROC worker which will flush the OFFCHANNEL queue.
823 * We assume here that all the packets sent to the OFFCHANNEL
824 * queue are sent in ROC session.
826 flush_work(&mvm
->roc_done_wk
);
829 * By now, all the AC queues are empty. The AGG queues are
830 * empty too. We already got all the Tx responses for all the
831 * packets in the queues. The drain work can have been
832 * triggered. Flush it.
834 flush_work(&mvm
->sta_drained_wk
);
838 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
839 struct ieee80211_vif
*vif
)
841 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
842 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
844 iwl_mvm_prepare_mac_removal(mvm
, vif
);
846 mutex_lock(&mvm
->mutex
);
848 if (mvm
->bf_allowed_vif
== mvmvif
) {
849 mvm
->bf_allowed_vif
= NULL
;
850 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
851 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
854 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
857 * For AP/GO interface, the tear down of the resources allocated to the
858 * interface is be handled as part of the stop_ap flow.
860 if (vif
->type
== NL80211_IFTYPE_AP
||
861 vif
->type
== NL80211_IFTYPE_ADHOC
) {
862 #ifdef CONFIG_NL80211_TESTMODE
863 if (vif
== mvm
->noa_vif
) {
865 mvm
->noa_duration
= 0;
868 iwl_mvm_dealloc_int_sta(mvm
, &mvmvif
->bcast_sta
);
872 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
873 mvm
->p2p_device_vif
= NULL
;
874 iwl_mvm_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
875 iwl_mvm_binding_remove_vif(mvm
, vif
);
876 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
877 mvmvif
->phy_ctxt
= NULL
;
880 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
883 /* TODO: remove this when legacy PM will be discarded */
884 ieee80211_iterate_active_interfaces(
885 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
886 iwl_mvm_power_update_iterator
, mvm
);
888 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
891 iwl_mvm_mac_ctxt_release(mvm
, vif
);
892 mutex_unlock(&mvm
->mutex
);
895 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
900 struct iwl_mvm_mc_iter_data
{
905 static void iwl_mvm_mc_iface_iterator(void *_data
, u8
*mac
,
906 struct ieee80211_vif
*vif
)
908 struct iwl_mvm_mc_iter_data
*data
= _data
;
909 struct iwl_mvm
*mvm
= data
->mvm
;
910 struct iwl_mcast_filter_cmd
*cmd
= mvm
->mcast_filter_cmd
;
913 /* if we don't have free ports, mcast frames will be dropped */
914 if (WARN_ON_ONCE(data
->port_id
>= MAX_PORT_ID_NUM
))
917 if (vif
->type
!= NL80211_IFTYPE_STATION
||
918 !vif
->bss_conf
.assoc
)
921 cmd
->port_id
= data
->port_id
++;
922 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
923 len
= roundup(sizeof(*cmd
) + cmd
->count
* ETH_ALEN
, 4);
925 ret
= iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_SYNC
, len
, cmd
);
927 IWL_ERR(mvm
, "mcast filter cmd error. ret=%d\n", ret
);
930 static void iwl_mvm_recalc_multicast(struct iwl_mvm
*mvm
)
932 struct iwl_mvm_mc_iter_data iter_data
= {
936 lockdep_assert_held(&mvm
->mutex
);
938 if (WARN_ON_ONCE(!mvm
->mcast_filter_cmd
))
941 ieee80211_iterate_active_interfaces(
942 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
943 iwl_mvm_mc_iface_iterator
, &iter_data
);
946 static u64
iwl_mvm_prepare_multicast(struct ieee80211_hw
*hw
,
947 struct netdev_hw_addr_list
*mc_list
)
949 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
950 struct iwl_mcast_filter_cmd
*cmd
;
951 struct netdev_hw_addr
*addr
;
952 int addr_count
= netdev_hw_addr_list_count(mc_list
);
953 bool pass_all
= false;
956 if (addr_count
> MAX_MCAST_FILTERING_ADDRESSES
) {
961 len
= roundup(sizeof(*cmd
) + addr_count
* ETH_ALEN
, 4);
962 cmd
= kzalloc(len
, GFP_ATOMIC
);
968 return (u64
)(unsigned long)cmd
;
971 netdev_hw_addr_list_for_each(addr
, mc_list
) {
972 IWL_DEBUG_MAC80211(mvm
, "mcast addr (%d): %pM\n",
973 cmd
->count
, addr
->addr
);
974 memcpy(&cmd
->addr_list
[cmd
->count
* ETH_ALEN
],
975 addr
->addr
, ETH_ALEN
);
979 return (u64
)(unsigned long)cmd
;
982 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
983 unsigned int changed_flags
,
984 unsigned int *total_flags
,
987 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
988 struct iwl_mcast_filter_cmd
*cmd
= (void *)(unsigned long)multicast
;
990 mutex_lock(&mvm
->mutex
);
992 /* replace previous configuration */
993 kfree(mvm
->mcast_filter_cmd
);
994 mvm
->mcast_filter_cmd
= cmd
;
999 iwl_mvm_recalc_multicast(mvm
);
1001 mutex_unlock(&mvm
->mutex
);
1005 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1006 struct iwl_bcast_iter_data
{
1007 struct iwl_mvm
*mvm
;
1008 struct iwl_bcast_filter_cmd
*cmd
;
1013 iwl_mvm_set_bcast_filter(struct ieee80211_vif
*vif
,
1014 const struct iwl_fw_bcast_filter
*in_filter
,
1015 struct iwl_fw_bcast_filter
*out_filter
)
1017 struct iwl_fw_bcast_filter_attr
*attr
;
1020 memcpy(out_filter
, in_filter
, sizeof(*out_filter
));
1022 for (i
= 0; i
< ARRAY_SIZE(out_filter
->attrs
); i
++) {
1023 attr
= &out_filter
->attrs
[i
];
1028 switch (attr
->reserved1
) {
1029 case cpu_to_le16(BC_FILTER_MAGIC_IP
):
1030 if (vif
->bss_conf
.arp_addr_cnt
!= 1) {
1035 attr
->val
= vif
->bss_conf
.arp_addr_list
[0];
1037 case cpu_to_le16(BC_FILTER_MAGIC_MAC
):
1038 attr
->val
= *(__be32
*)&vif
->addr
[2];
1043 attr
->reserved1
= 0;
1044 out_filter
->num_attrs
++;
1048 static void iwl_mvm_bcast_filter_iterator(void *_data
, u8
*mac
,
1049 struct ieee80211_vif
*vif
)
1051 struct iwl_bcast_iter_data
*data
= _data
;
1052 struct iwl_mvm
*mvm
= data
->mvm
;
1053 struct iwl_bcast_filter_cmd
*cmd
= data
->cmd
;
1054 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1055 struct iwl_fw_bcast_mac
*bcast_mac
;
1058 if (WARN_ON(mvmvif
->id
>= ARRAY_SIZE(cmd
->macs
)))
1061 bcast_mac
= &cmd
->macs
[mvmvif
->id
];
1063 /* enable filtering only for associated stations */
1064 if (vif
->type
!= NL80211_IFTYPE_STATION
|| !vif
->bss_conf
.assoc
)
1067 bcast_mac
->default_discard
= 1;
1069 /* copy all configured filters */
1070 for (i
= 0; mvm
->bcast_filters
[i
].attrs
[0].mask
; i
++) {
1072 * Make sure we don't exceed our filters limit.
1073 * if there is still a valid filter to be configured,
1074 * be on the safe side and just allow bcast for this mac.
1076 if (WARN_ON_ONCE(data
->current_filter
>=
1077 ARRAY_SIZE(cmd
->filters
))) {
1078 bcast_mac
->default_discard
= 0;
1079 bcast_mac
->attached_filters
= 0;
1083 iwl_mvm_set_bcast_filter(vif
,
1084 &mvm
->bcast_filters
[i
],
1085 &cmd
->filters
[data
->current_filter
]);
1087 /* skip current filter if it contains no attributes */
1088 if (!cmd
->filters
[data
->current_filter
].num_attrs
)
1091 /* attach the filter to current mac */
1092 bcast_mac
->attached_filters
|=
1093 cpu_to_le16(BIT(data
->current_filter
));
1095 data
->current_filter
++;
1099 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm
*mvm
,
1100 struct iwl_bcast_filter_cmd
*cmd
)
1102 struct iwl_bcast_iter_data iter_data
= {
1107 memset(cmd
, 0, sizeof(*cmd
));
1108 cmd
->max_bcast_filters
= ARRAY_SIZE(cmd
->filters
);
1109 cmd
->max_macs
= ARRAY_SIZE(cmd
->macs
);
1111 #ifdef CONFIG_IWLWIFI_DEBUGFS
1112 /* use debugfs filters/macs if override is configured */
1113 if (mvm
->dbgfs_bcast_filtering
.override
) {
1114 memcpy(cmd
->filters
, &mvm
->dbgfs_bcast_filtering
.cmd
.filters
,
1115 sizeof(cmd
->filters
));
1116 memcpy(cmd
->macs
, &mvm
->dbgfs_bcast_filtering
.cmd
.macs
,
1122 /* if no filters are configured, do nothing */
1123 if (!mvm
->bcast_filters
)
1126 /* configure and attach these filters for each associated sta vif */
1127 ieee80211_iterate_active_interfaces(
1128 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1129 iwl_mvm_bcast_filter_iterator
, &iter_data
);
1133 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1134 struct ieee80211_vif
*vif
)
1136 struct iwl_bcast_filter_cmd cmd
;
1138 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BCAST_FILTERING
))
1141 if (!iwl_mvm_bcast_filter_build_cmd(mvm
, &cmd
))
1144 return iwl_mvm_send_cmd_pdu(mvm
, BCAST_FILTER_CMD
, CMD_SYNC
,
1148 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1149 struct ieee80211_vif
*vif
)
1155 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
1156 struct ieee80211_vif
*vif
,
1157 struct ieee80211_bss_conf
*bss_conf
,
1160 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1164 * Re-calculate the tsf id, as the master-slave relations depend on the
1165 * beacon interval, which was not known when the station interface was
1168 if (changes
& BSS_CHANGED_ASSOC
&& bss_conf
->assoc
)
1169 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1171 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
);
1173 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1175 if (changes
& BSS_CHANGED_ASSOC
) {
1176 if (bss_conf
->assoc
) {
1177 /* add quota for this interface */
1178 ret
= iwl_mvm_update_quotas(mvm
, vif
);
1180 IWL_ERR(mvm
, "failed to update quotas\n");
1184 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
1187 * If we're restarting then the firmware will
1188 * obviously have lost synchronisation with
1189 * the AP. It will attempt to synchronise by
1190 * itself, but we can make it more reliable by
1191 * scheduling a session protection time event.
1193 * The firmware needs to receive a beacon to
1194 * catch up with synchronisation, use 110% of
1195 * the beacon interval.
1197 * Set a large maximum delay to allow for more
1198 * than a single interface.
1200 u32 dur
= (11 * vif
->bss_conf
.beacon_int
) / 10;
1201 iwl_mvm_protect_session(mvm
, vif
, dur
, dur
,
1205 iwl_mvm_sf_update(mvm
, vif
, false);
1206 iwl_mvm_power_vif_assoc(mvm
, vif
);
1208 iwl_mvm_ref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1209 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_STATION_COUNT
) {
1211 * If update fails - SF might be running in associated
1212 * mode while disassociated - which is forbidden.
1214 WARN_ONCE(iwl_mvm_sf_update(mvm
, vif
, false),
1215 "Failed to update SF upon disassociation\n");
1217 /* remove AP station now that the MAC is unassoc */
1218 ret
= iwl_mvm_rm_sta_id(mvm
, vif
, mvmvif
->ap_sta_id
);
1220 IWL_ERR(mvm
, "failed to remove AP station\n");
1222 if (mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
1223 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1224 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
1225 /* remove quota for this interface */
1226 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1228 IWL_ERR(mvm
, "failed to update quotas\n");
1231 iwl_mvm_unref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1234 iwl_mvm_recalc_multicast(mvm
);
1235 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1237 /* reset rssi values */
1238 mvmvif
->bf_data
.ave_beacon_signal
= 0;
1240 if (!(mvm
->fw
->ucode_capa
.flags
&
1241 IWL_UCODE_TLV_FLAGS_PM_CMD_SUPPORT
)) {
1242 /* Workaround for FW bug, otherwise FW disables device
1243 * power save upon disassociation
1245 ret
= iwl_mvm_power_update_mode(mvm
, vif
);
1247 IWL_ERR(mvm
, "failed to update power mode\n");
1249 iwl_mvm_bt_coex_vif_change(mvm
);
1250 iwl_mvm_update_smps(mvm
, vif
, IWL_MVM_SMPS_REQ_TT
,
1251 IEEE80211_SMPS_AUTOMATIC
);
1252 } else if (changes
& BSS_CHANGED_BEACON_INFO
) {
1254 * We received a beacon _after_ association so
1255 * remove the session protection.
1257 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1258 &mvmvif
->time_event_data
);
1259 } else if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_P2P_PS
|
1261 ret
= iwl_mvm_power_update_mode(mvm
, vif
);
1263 IWL_ERR(mvm
, "failed to update power mode\n");
1265 if (changes
& BSS_CHANGED_TXPOWER
) {
1266 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
1268 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
1271 if (changes
& BSS_CHANGED_CQM
) {
1272 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed");
1273 /* reset cqm events tracking */
1274 mvmvif
->bf_data
.last_cqm_event
= 0;
1275 ret
= iwl_mvm_update_beacon_filter(mvm
, vif
, false, CMD_SYNC
);
1277 IWL_ERR(mvm
, "failed to update CQM thresholds\n");
1280 if (changes
& BSS_CHANGED_ARP_FILTER
) {
1281 IWL_DEBUG_MAC80211(mvm
, "arp filter changed");
1282 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1286 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw
*hw
,
1287 struct ieee80211_vif
*vif
)
1289 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1290 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1293 mutex_lock(&mvm
->mutex
);
1295 /* Send the beacon template */
1296 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
1301 * Re-calculate the tsf id, as the master-slave relations depend on the
1302 * beacon interval, which was not known when the AP interface was added.
1304 if (vif
->type
== NL80211_IFTYPE_AP
)
1305 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1307 /* Add the mac context */
1308 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1312 /* Perform the binding */
1313 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1317 mvmvif
->ap_ibss_active
= true;
1319 /* Send the bcast station. At this stage the TBTT and DTIM time events
1320 * are added and applied to the scheduler */
1321 ret
= iwl_mvm_send_bcast_sta(mvm
, vif
, &mvmvif
->bcast_sta
);
1325 /* must be set before quota calculations */
1326 mvmvif
->ap_ibss_active
= true;
1328 /* power updated needs to be done before quotas */
1329 mvm
->bound_vif_cnt
++;
1330 iwl_mvm_power_update_binding(mvm
, vif
, true);
1332 ret
= iwl_mvm_update_quotas(mvm
, vif
);
1334 goto out_quota_failed
;
1336 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1337 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1338 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
);
1340 iwl_mvm_ref(mvm
, IWL_MVM_REF_AP_IBSS
);
1342 iwl_mvm_bt_coex_vif_change(mvm
);
1344 mutex_unlock(&mvm
->mutex
);
1348 mvm
->bound_vif_cnt
--;
1349 iwl_mvm_power_update_binding(mvm
, vif
, false);
1350 mvmvif
->ap_ibss_active
= false;
1351 iwl_mvm_send_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
1353 iwl_mvm_binding_remove_vif(mvm
, vif
);
1355 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1357 mutex_unlock(&mvm
->mutex
);
1361 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw
*hw
,
1362 struct ieee80211_vif
*vif
)
1364 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1365 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1367 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1369 mutex_lock(&mvm
->mutex
);
1371 mvmvif
->ap_ibss_active
= false;
1373 iwl_mvm_bt_coex_vif_change(mvm
);
1375 iwl_mvm_unref(mvm
, IWL_MVM_REF_AP_IBSS
);
1377 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1378 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1379 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
);
1381 iwl_mvm_update_quotas(mvm
, NULL
);
1382 iwl_mvm_send_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
1383 iwl_mvm_binding_remove_vif(mvm
, vif
);
1385 mvm
->bound_vif_cnt
--;
1386 iwl_mvm_power_update_binding(mvm
, vif
, false);
1388 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1390 mutex_unlock(&mvm
->mutex
);
1394 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm
*mvm
,
1395 struct ieee80211_vif
*vif
,
1396 struct ieee80211_bss_conf
*bss_conf
,
1399 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1400 enum ieee80211_bss_change ht_change
= BSS_CHANGED_ERP_CTS_PROT
|
1402 BSS_CHANGED_BANDWIDTH
;
1405 /* Changes will be applied when the AP/IBSS is started */
1406 if (!mvmvif
->ap_ibss_active
)
1409 if (changes
& ht_change
) {
1410 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
);
1412 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1415 /* Need to send a new beacon template to the FW */
1416 if (changes
& BSS_CHANGED_BEACON
) {
1417 if (iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
1418 IWL_WARN(mvm
, "Failed updating beacon data\n");
1422 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
1423 struct ieee80211_vif
*vif
,
1424 struct ieee80211_bss_conf
*bss_conf
,
1427 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1429 mutex_lock(&mvm
->mutex
);
1431 switch (vif
->type
) {
1432 case NL80211_IFTYPE_STATION
:
1433 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
1435 case NL80211_IFTYPE_AP
:
1436 case NL80211_IFTYPE_ADHOC
:
1437 iwl_mvm_bss_info_changed_ap_ibss(mvm
, vif
, bss_conf
, changes
);
1440 /* shouldn't happen */
1444 mutex_unlock(&mvm
->mutex
);
1447 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
1448 struct ieee80211_vif
*vif
,
1449 struct cfg80211_scan_request
*req
)
1451 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1452 struct iwl_notification_wait wait_scan_done
;
1453 static const u8 scan_done_notif
[] = { SCAN_OFFLOAD_COMPLETE
, };
1456 if (req
->n_channels
== 0 || req
->n_channels
> MAX_NUM_SCAN_CHANNELS
)
1459 mutex_lock(&mvm
->mutex
);
1461 switch (mvm
->scan_status
) {
1462 case IWL_MVM_SCAN_SCHED
:
1463 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_scan_done
,
1465 ARRAY_SIZE(scan_done_notif
),
1467 iwl_mvm_sched_scan_stop(mvm
);
1468 ret
= iwl_wait_notification(&mvm
->notif_wait
,
1469 &wait_scan_done
, HZ
);
1474 /* iwl_mvm_rx_scan_offload_complete_notif() will be called
1475 * soon but will not reset the scan status as it won't be
1476 * IWL_MVM_SCAN_SCHED any more since we queue the next scan
1477 * immediately (below)
1480 case IWL_MVM_SCAN_NONE
:
1487 iwl_mvm_ref(mvm
, IWL_MVM_REF_SCAN
);
1489 ret
= iwl_mvm_scan_request(mvm
, vif
, req
);
1491 iwl_mvm_unref(mvm
, IWL_MVM_REF_SCAN
);
1493 mutex_unlock(&mvm
->mutex
);
1498 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
1499 struct ieee80211_vif
*vif
)
1501 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1503 mutex_lock(&mvm
->mutex
);
1505 iwl_mvm_cancel_scan(mvm
);
1507 mutex_unlock(&mvm
->mutex
);
1511 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
1512 struct ieee80211_sta
*sta
, u16 tids
,
1514 enum ieee80211_frame_release_type reason
,
1517 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1519 /* Called when we need to transmit (a) frame(s) from mac80211 */
1521 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
1522 tids
, more_data
, false);
1526 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw
*hw
,
1527 struct ieee80211_sta
*sta
, u16 tids
,
1529 enum ieee80211_frame_release_type reason
,
1532 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1534 /* Called when we need to transmit (a) frame(s) from agg queue */
1536 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
1537 tids
, more_data
, true);
1540 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
1541 struct ieee80211_vif
*vif
,
1542 enum sta_notify_cmd cmd
,
1543 struct ieee80211_sta
*sta
)
1545 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1546 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
1550 case STA_NOTIFY_SLEEP
:
1551 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
1552 ieee80211_sta_block_awake(hw
, sta
, true);
1553 spin_lock_bh(&mvmsta
->lock
);
1554 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
1555 struct iwl_mvm_tid_data
*tid_data
;
1557 tid_data
= &mvmsta
->tid_data
[tid
];
1558 if (tid_data
->state
!= IWL_AGG_ON
&&
1559 tid_data
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
1561 if (iwl_mvm_tid_queued(tid_data
) == 0)
1563 ieee80211_sta_set_buffered(sta
, tid
, true);
1565 spin_unlock_bh(&mvmsta
->lock
);
1567 * The fw updates the STA to be asleep. Tx packets on the Tx
1568 * queues to this station will not be transmitted. The fw will
1569 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1572 case STA_NOTIFY_AWAKE
:
1573 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
))
1575 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
1582 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw
*hw
,
1583 struct ieee80211_vif
*vif
,
1584 struct ieee80211_sta
*sta
)
1586 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1587 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
1590 * This is called before mac80211 does RCU synchronisation,
1591 * so here we already invalidate our internal RCU-protected
1592 * station pointer. The rest of the code will thus no longer
1593 * be able to find the station this way, and we don't rely
1594 * on further RCU synchronisation after the sta_state()
1595 * callback deleted the station.
1597 mutex_lock(&mvm
->mutex
);
1598 if (sta
== rcu_access_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
]))
1599 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
],
1601 mutex_unlock(&mvm
->mutex
);
1604 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
1605 struct ieee80211_vif
*vif
,
1606 struct ieee80211_sta
*sta
,
1607 enum ieee80211_sta_state old_state
,
1608 enum ieee80211_sta_state new_state
)
1610 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1611 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1614 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
1615 sta
->addr
, old_state
, new_state
);
1617 /* this would be a mac80211 bug ... but don't crash */
1618 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
1621 /* if a STA is being removed, reuse its ID */
1622 flush_work(&mvm
->sta_drained_wk
);
1624 mutex_lock(&mvm
->mutex
);
1625 if (old_state
== IEEE80211_STA_NOTEXIST
&&
1626 new_state
== IEEE80211_STA_NONE
) {
1628 * Firmware bug - it'll crash if the beacon interval is less
1629 * than 16. We can't avoid connecting at all, so refuse the
1630 * station state change, this will cause mac80211 to abandon
1631 * attempts to connect to this AP, and eventually wpa_s will
1632 * blacklist the AP...
1634 if (vif
->type
== NL80211_IFTYPE_STATION
&&
1635 vif
->bss_conf
.beacon_int
< 16) {
1637 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
1638 sta
->addr
, vif
->bss_conf
.beacon_int
);
1642 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
1643 } else if (old_state
== IEEE80211_STA_NONE
&&
1644 new_state
== IEEE80211_STA_AUTH
) {
1646 } else if (old_state
== IEEE80211_STA_AUTH
&&
1647 new_state
== IEEE80211_STA_ASSOC
) {
1648 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
1650 iwl_mvm_rs_rate_init(mvm
, sta
,
1651 mvmvif
->phy_ctxt
->channel
->band
,
1653 } else if (old_state
== IEEE80211_STA_ASSOC
&&
1654 new_state
== IEEE80211_STA_AUTHORIZED
) {
1655 /* enable beacon filtering */
1656 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, CMD_SYNC
));
1658 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
1659 new_state
== IEEE80211_STA_ASSOC
) {
1660 /* disable beacon filtering */
1661 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
, CMD_SYNC
));
1663 } else if (old_state
== IEEE80211_STA_ASSOC
&&
1664 new_state
== IEEE80211_STA_AUTH
) {
1666 } else if (old_state
== IEEE80211_STA_AUTH
&&
1667 new_state
== IEEE80211_STA_NONE
) {
1669 } else if (old_state
== IEEE80211_STA_NONE
&&
1670 new_state
== IEEE80211_STA_NOTEXIST
) {
1671 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
1676 mutex_unlock(&mvm
->mutex
);
1681 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
1683 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1685 mvm
->rts_threshold
= value
;
1690 static void iwl_mvm_sta_rc_update(struct ieee80211_hw
*hw
,
1691 struct ieee80211_vif
*vif
,
1692 struct ieee80211_sta
*sta
, u32 changed
)
1694 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1696 if (vif
->type
== NL80211_IFTYPE_STATION
&&
1697 changed
& IEEE80211_RC_NSS_CHANGED
)
1698 iwl_mvm_sf_update(mvm
, vif
, false);
1701 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
1702 struct ieee80211_vif
*vif
, u16 ac
,
1703 const struct ieee80211_tx_queue_params
*params
)
1705 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1706 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1708 mvmvif
->queue_params
[ac
] = *params
;
1711 * No need to update right away, we'll get BSS_CHANGED_QOS
1712 * The exception is P2P_DEVICE interface which needs immediate update.
1714 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1717 mutex_lock(&mvm
->mutex
);
1718 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
);
1719 mutex_unlock(&mvm
->mutex
);
1725 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
1726 struct ieee80211_vif
*vif
)
1728 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1729 u32 duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
,
1730 200 + vif
->bss_conf
.beacon_int
);
1731 u32 min_duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
,
1732 100 + vif
->bss_conf
.beacon_int
);
1734 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
1737 mutex_lock(&mvm
->mutex
);
1738 /* Try really hard to protect the session and hear a beacon */
1739 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
, 500);
1740 mutex_unlock(&mvm
->mutex
);
1743 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw
*hw
,
1744 struct ieee80211_vif
*vif
,
1745 struct cfg80211_sched_scan_request
*req
,
1746 struct ieee80211_sched_scan_ies
*ies
)
1748 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1751 mutex_lock(&mvm
->mutex
);
1753 if (mvm
->scan_status
!= IWL_MVM_SCAN_NONE
) {
1755 "SCHED SCAN request during internal scan - abort\n");
1760 mvm
->scan_status
= IWL_MVM_SCAN_SCHED
;
1762 ret
= iwl_mvm_config_sched_scan(mvm
, vif
, req
, ies
);
1766 ret
= iwl_mvm_config_sched_scan_profiles(mvm
, req
);
1770 ret
= iwl_mvm_sched_scan_start(mvm
, req
);
1774 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
1776 mutex_unlock(&mvm
->mutex
);
1780 static void iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw
*hw
,
1781 struct ieee80211_vif
*vif
)
1783 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1785 mutex_lock(&mvm
->mutex
);
1786 iwl_mvm_sched_scan_stop(mvm
);
1787 mutex_unlock(&mvm
->mutex
);
1790 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
1791 enum set_key_cmd cmd
,
1792 struct ieee80211_vif
*vif
,
1793 struct ieee80211_sta
*sta
,
1794 struct ieee80211_key_conf
*key
)
1796 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1799 if (iwlwifi_mod_params
.sw_crypto
) {
1800 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
1804 switch (key
->cipher
) {
1805 case WLAN_CIPHER_SUITE_TKIP
:
1806 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
1808 case WLAN_CIPHER_SUITE_CCMP
:
1809 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
1811 case WLAN_CIPHER_SUITE_AES_CMAC
:
1812 WARN_ON_ONCE(!(hw
->flags
& IEEE80211_HW_MFP_CAPABLE
));
1814 case WLAN_CIPHER_SUITE_WEP40
:
1815 case WLAN_CIPHER_SUITE_WEP104
:
1817 * Support for TX only, at least for now, so accept
1818 * the key and do nothing else. Then mac80211 will
1819 * pass it for TX but we don't have to use it for RX.
1823 /* currently FW supports only one optional cipher scheme */
1824 if (hw
->n_cipher_schemes
&&
1825 hw
->cipher_schemes
->cipher
== key
->cipher
)
1826 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
1831 mutex_lock(&mvm
->mutex
);
1835 if ((vif
->type
== NL80211_IFTYPE_ADHOC
||
1836 vif
->type
== NL80211_IFTYPE_AP
) && !sta
) {
1838 * GTK on AP interface is a TX-only key, return 0;
1839 * on IBSS they're per-station and because we're lazy
1840 * we don't support them for RX, so do the same.
1843 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
1847 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
1848 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, false);
1850 IWL_WARN(mvm
, "set key failed\n");
1852 * can't add key for RX, but we don't need it
1853 * in the device for TX so still return 0
1855 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
1861 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
1866 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
1867 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
1873 mutex_unlock(&mvm
->mutex
);
1877 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
1878 struct ieee80211_vif
*vif
,
1879 struct ieee80211_key_conf
*keyconf
,
1880 struct ieee80211_sta
*sta
,
1881 u32 iv32
, u16
*phase1key
)
1883 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1885 if (keyconf
->hw_key_idx
== STA_KEY_IDX_INVALID
)
1888 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
1892 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
1893 struct ieee80211_vif
*vif
,
1894 struct ieee80211_channel
*channel
,
1896 enum ieee80211_roc_type type
)
1898 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1899 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1900 struct cfg80211_chan_def chandef
;
1901 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
1904 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
1907 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
) {
1908 IWL_ERR(mvm
, "vif isn't a P2P_DEVICE: %d\n", vif
->type
);
1912 mutex_lock(&mvm
->mutex
);
1914 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
1915 phy_ctxt
= &mvm
->phy_ctxts
[i
];
1916 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
1919 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
1921 * Unbind the P2P_DEVICE from the current PHY context,
1922 * and if the PHY context is not used remove it.
1924 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
1925 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
1928 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1930 /* Bind the P2P_DEVICE to the current PHY Context */
1931 mvmvif
->phy_ctxt
= phy_ctxt
;
1933 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1934 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
1937 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1938 goto schedule_time_event
;
1942 /* Need to update the PHY context only if the ROC channel changed */
1943 if (channel
== mvmvif
->phy_ctxt
->channel
)
1944 goto schedule_time_event
;
1946 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
1949 * Change the PHY context configuration as it is currently referenced
1950 * only by the P2P Device MAC
1952 if (mvmvif
->phy_ctxt
->ref
== 1) {
1953 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
1959 * The PHY context is shared with other MACs. Need to remove the
1960 * P2P Device from the binding, allocate an new PHY context and
1961 * create a new binding
1963 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1969 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
1972 IWL_ERR(mvm
, "Failed to change PHY context\n");
1976 /* Unbind the P2P_DEVICE from the current PHY context */
1977 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
1978 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
1981 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1983 /* Bind the P2P_DEVICE to the new allocated PHY context */
1984 mvmvif
->phy_ctxt
= phy_ctxt
;
1986 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1987 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
1990 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1993 schedule_time_event
:
1994 /* Schedule the time events */
1995 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
1998 mutex_unlock(&mvm
->mutex
);
1999 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2003 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
2005 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2007 IWL_DEBUG_MAC80211(mvm
, "enter\n");
2009 mutex_lock(&mvm
->mutex
);
2010 iwl_mvm_stop_p2p_roc(mvm
);
2011 mutex_unlock(&mvm
->mutex
);
2013 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2017 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
2018 struct ieee80211_chanctx_conf
*ctx
)
2020 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2021 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2022 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2025 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
2027 mutex_lock(&mvm
->mutex
);
2028 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2034 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2035 ctx
->rx_chains_static
,
2036 ctx
->rx_chains_dynamic
);
2038 IWL_ERR(mvm
, "Failed to add PHY context\n");
2042 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
2043 *phy_ctxt_id
= phy_ctxt
->id
;
2045 mutex_unlock(&mvm
->mutex
);
2049 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
2050 struct ieee80211_chanctx_conf
*ctx
)
2052 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2053 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2054 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2056 mutex_lock(&mvm
->mutex
);
2057 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
2058 mutex_unlock(&mvm
->mutex
);
2061 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
2062 struct ieee80211_chanctx_conf
*ctx
,
2065 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2066 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2067 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2069 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
2070 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
2071 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
2072 IEEE80211_CHANCTX_CHANGE_RADAR
|
2073 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH
)),
2074 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2075 phy_ctxt
->ref
, changed
))
2078 mutex_lock(&mvm
->mutex
);
2079 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2080 ctx
->rx_chains_static
,
2081 ctx
->rx_chains_dynamic
);
2082 iwl_mvm_bt_coex_vif_change(mvm
);
2083 mutex_unlock(&mvm
->mutex
);
2086 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
2087 struct ieee80211_vif
*vif
,
2088 struct ieee80211_chanctx_conf
*ctx
)
2090 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2091 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2092 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2093 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2096 mutex_lock(&mvm
->mutex
);
2098 mvmvif
->phy_ctxt
= phy_ctxt
;
2100 switch (vif
->type
) {
2101 case NL80211_IFTYPE_AP
:
2102 case NL80211_IFTYPE_ADHOC
:
2104 * The AP binding flow is handled as part of the start_ap flow
2105 * (in bss_info_changed), similarly for IBSS.
2109 case NL80211_IFTYPE_STATION
:
2110 case NL80211_IFTYPE_MONITOR
:
2117 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2122 * Power state must be updated before quotas,
2123 * otherwise fw will complain.
2125 mvm
->bound_vif_cnt
++;
2126 iwl_mvm_power_update_binding(mvm
, vif
, true);
2128 /* Setting the quota at this stage is only required for monitor
2129 * interfaces. For the other types, the bss_info changed flow
2130 * will handle quota settings.
2132 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
2133 mvmvif
->monitor_active
= true;
2134 ret
= iwl_mvm_update_quotas(mvm
, vif
);
2136 goto out_remove_binding
;
2142 iwl_mvm_binding_remove_vif(mvm
, vif
);
2143 mvm
->bound_vif_cnt
--;
2144 iwl_mvm_power_update_binding(mvm
, vif
, false);
2146 mutex_unlock(&mvm
->mutex
);
2148 mvmvif
->phy_ctxt
= NULL
;
2152 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
2153 struct ieee80211_vif
*vif
,
2154 struct ieee80211_chanctx_conf
*ctx
)
2156 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2157 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2159 mutex_lock(&mvm
->mutex
);
2161 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
2163 switch (vif
->type
) {
2164 case NL80211_IFTYPE_AP
:
2165 case NL80211_IFTYPE_ADHOC
:
2167 case NL80211_IFTYPE_MONITOR
:
2168 mvmvif
->monitor_active
= false;
2169 iwl_mvm_update_quotas(mvm
, NULL
);
2175 iwl_mvm_binding_remove_vif(mvm
, vif
);
2176 mvm
->bound_vif_cnt
--;
2177 iwl_mvm_power_update_binding(mvm
, vif
, false);
2180 mvmvif
->phy_ctxt
= NULL
;
2181 mutex_unlock(&mvm
->mutex
);
2184 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
2185 struct ieee80211_sta
*sta
,
2188 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2189 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
2191 if (!mvm_sta
|| !mvm_sta
->vif
) {
2192 IWL_ERR(mvm
, "Station is not associated to a vif\n");
2196 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
2199 #ifdef CONFIG_NL80211_TESTMODE
2200 static const struct nla_policy iwl_mvm_tm_policy
[IWL_MVM_TM_ATTR_MAX
+ 1] = {
2201 [IWL_MVM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
2202 [IWL_MVM_TM_ATTR_NOA_DURATION
] = { .type
= NLA_U32
},
2203 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
] = { .type
= NLA_U32
},
2206 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm
*mvm
,
2207 struct ieee80211_vif
*vif
,
2208 void *data
, int len
)
2210 struct nlattr
*tb
[IWL_MVM_TM_ATTR_MAX
+ 1];
2214 err
= nla_parse(tb
, IWL_MVM_TM_ATTR_MAX
, data
, len
, iwl_mvm_tm_policy
);
2218 if (!tb
[IWL_MVM_TM_ATTR_CMD
])
2221 switch (nla_get_u32(tb
[IWL_MVM_TM_ATTR_CMD
])) {
2222 case IWL_MVM_TM_CMD_SET_NOA
:
2223 if (!vif
|| vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
||
2224 !vif
->bss_conf
.enable_beacon
||
2225 !tb
[IWL_MVM_TM_ATTR_NOA_DURATION
])
2228 noa_duration
= nla_get_u32(tb
[IWL_MVM_TM_ATTR_NOA_DURATION
]);
2229 if (noa_duration
>= vif
->bss_conf
.beacon_int
)
2232 mvm
->noa_duration
= noa_duration
;
2235 return iwl_mvm_update_quotas(mvm
, NULL
);
2236 case IWL_MVM_TM_CMD_SET_BEACON_FILTER
:
2237 /* must be associated client vif - ignore authorized */
2238 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
||
2239 !vif
->bss_conf
.assoc
|| !vif
->bss_conf
.dtim_period
||
2240 !tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
])
2243 if (nla_get_u32(tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
]))
2244 return iwl_mvm_enable_beacon_filter(mvm
, vif
,
2246 return iwl_mvm_disable_beacon_filter(mvm
, vif
, CMD_SYNC
);
2252 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw
*hw
,
2253 struct ieee80211_vif
*vif
,
2254 void *data
, int len
)
2256 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2259 mutex_lock(&mvm
->mutex
);
2260 err
= __iwl_mvm_mac_testmode_cmd(mvm
, vif
, data
, len
);
2261 mutex_unlock(&mvm
->mutex
);
2267 struct ieee80211_ops iwl_mvm_hw_ops
= {
2268 .tx
= iwl_mvm_mac_tx
,
2269 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
2270 .start
= iwl_mvm_mac_start
,
2271 .restart_complete
= iwl_mvm_mac_restart_complete
,
2272 .stop
= iwl_mvm_mac_stop
,
2273 .add_interface
= iwl_mvm_mac_add_interface
,
2274 .remove_interface
= iwl_mvm_mac_remove_interface
,
2275 .config
= iwl_mvm_mac_config
,
2276 .prepare_multicast
= iwl_mvm_prepare_multicast
,
2277 .configure_filter
= iwl_mvm_configure_filter
,
2278 .bss_info_changed
= iwl_mvm_bss_info_changed
,
2279 .hw_scan
= iwl_mvm_mac_hw_scan
,
2280 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
2281 .sta_pre_rcu_remove
= iwl_mvm_sta_pre_rcu_remove
,
2282 .sta_state
= iwl_mvm_mac_sta_state
,
2283 .sta_notify
= iwl_mvm_mac_sta_notify
,
2284 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
2285 .release_buffered_frames
= iwl_mvm_mac_release_buffered_frames
,
2286 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
2287 .sta_rc_update
= iwl_mvm_sta_rc_update
,
2288 .conf_tx
= iwl_mvm_mac_conf_tx
,
2289 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
2290 .sched_scan_start
= iwl_mvm_mac_sched_scan_start
,
2291 .sched_scan_stop
= iwl_mvm_mac_sched_scan_stop
,
2292 .set_key
= iwl_mvm_mac_set_key
,
2293 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
2294 .remain_on_channel
= iwl_mvm_roc
,
2295 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
2296 .add_chanctx
= iwl_mvm_add_chanctx
,
2297 .remove_chanctx
= iwl_mvm_remove_chanctx
,
2298 .change_chanctx
= iwl_mvm_change_chanctx
,
2299 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
2300 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
2302 .start_ap
= iwl_mvm_start_ap_ibss
,
2303 .stop_ap
= iwl_mvm_stop_ap_ibss
,
2304 .join_ibss
= iwl_mvm_start_ap_ibss
,
2305 .leave_ibss
= iwl_mvm_stop_ap_ibss
,
2307 .set_tim
= iwl_mvm_set_tim
,
2309 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd
)
2311 #ifdef CONFIG_PM_SLEEP
2313 .suspend
= iwl_mvm_suspend
,
2314 .resume
= iwl_mvm_resume
,
2315 .set_wakeup
= iwl_mvm_set_wakeup
,
2316 .set_rekey_data
= iwl_mvm_set_rekey_data
,
2317 #if IS_ENABLED(CONFIG_IPV6)
2318 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
2320 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,