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 *****************************************************************************/
64 #include <linux/etherdevice.h>
65 #include <net/mac80211.h>
71 const u8 iwl_mvm_ac_to_tx_fifo
[] = {
78 struct iwl_mvm_mac_iface_iterator_data
{
80 struct ieee80211_vif
*vif
;
81 unsigned long available_mac_ids
[BITS_TO_LONGS(NUM_MAC_INDEX_DRIVER
)];
82 unsigned long available_tsf_ids
[BITS_TO_LONGS(NUM_TSF_IDS
)];
83 unsigned long used_hw_queues
[BITS_TO_LONGS(IWL_MVM_MAX_QUEUES
)];
84 enum iwl_tsf_id preferred_tsf
;
88 static void iwl_mvm_mac_tsf_id_iter(void *_data
, u8
*mac
,
89 struct ieee80211_vif
*vif
)
91 struct iwl_mvm_mac_iface_iterator_data
*data
= _data
;
92 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
95 /* Skip the interface for which we are trying to assign a tsf_id */
100 * The TSF is a hardware/firmware resource, there are 4 and
101 * the driver should assign and free them as needed. However,
102 * there are cases where 2 MACs should share the same TSF ID
103 * for the purpose of clock sync, an optimization to avoid
104 * clock drift causing overlapping TBTTs/DTIMs for a GO and
105 * client in the system.
107 * The firmware will decide according to the MAC type which
108 * will be the master and slave. Clients that need to sync
109 * with a remote station will be the master, and an AP or GO
112 * Depending on the new interface type it can be slaved to
113 * or become the master of an existing interface.
115 switch (data
->vif
->type
) {
116 case NL80211_IFTYPE_STATION
:
118 * The new interface is a client, so if the one we're iterating
119 * is an AP, and the beacon interval of the AP is a multiple or
120 * divisor of the beacon interval of the client, the same TSF
121 * should be used to avoid drift between the new client and
122 * existing AP. The existing AP will get drift updates from the
123 * new client context in this case.
125 if (vif
->type
!= NL80211_IFTYPE_AP
||
126 data
->preferred_tsf
!= NUM_TSF_IDS
||
127 !test_bit(mvmvif
->tsf_id
, data
->available_tsf_ids
))
130 min_bi
= min(data
->vif
->bss_conf
.beacon_int
,
131 vif
->bss_conf
.beacon_int
);
136 if ((data
->vif
->bss_conf
.beacon_int
-
137 vif
->bss_conf
.beacon_int
) % min_bi
== 0) {
138 data
->preferred_tsf
= mvmvif
->tsf_id
;
143 case NL80211_IFTYPE_AP
:
145 * The new interface is AP/GO, so if its beacon interval is a
146 * multiple or a divisor of the beacon interval of an existing
147 * interface, it should get drift updates from an existing
148 * client or use the same TSF as an existing GO. There's no
149 * drift between TSFs internally but if they used different
150 * TSFs then a new client MAC could update one of them and
151 * cause drift that way.
153 if ((vif
->type
!= NL80211_IFTYPE_AP
&&
154 vif
->type
!= NL80211_IFTYPE_STATION
) ||
155 data
->preferred_tsf
!= NUM_TSF_IDS
||
156 !test_bit(mvmvif
->tsf_id
, data
->available_tsf_ids
))
159 min_bi
= min(data
->vif
->bss_conf
.beacon_int
,
160 vif
->bss_conf
.beacon_int
);
165 if ((data
->vif
->bss_conf
.beacon_int
-
166 vif
->bss_conf
.beacon_int
) % min_bi
== 0) {
167 data
->preferred_tsf
= mvmvif
->tsf_id
;
173 * For all other interface types there's no need to
174 * take drift into account. Either they're exclusive
175 * like IBSS and monitor, or we don't care much about
176 * their TSF (like P2P Device), but we won't be able
177 * to share the TSF resource.
183 * Unless we exited above, we can't share the TSF resource
184 * that the virtual interface we're iterating over is using
185 * with the new one, so clear the available bit and if this
186 * was the preferred one, reset that as well.
188 __clear_bit(mvmvif
->tsf_id
, data
->available_tsf_ids
);
190 if (data
->preferred_tsf
== mvmvif
->tsf_id
)
191 data
->preferred_tsf
= NUM_TSF_IDS
;
194 static void iwl_mvm_mac_iface_iterator(void *_data
, u8
*mac
,
195 struct ieee80211_vif
*vif
)
197 struct iwl_mvm_mac_iface_iterator_data
*data
= _data
;
198 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
201 /* Iterator may already find the interface being added -- skip it */
202 if (vif
== data
->vif
) {
203 data
->found_vif
= true;
207 /* Mark the queues used by the vif */
208 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++)
209 if (vif
->hw_queue
[ac
] != IEEE80211_INVAL_HW_QUEUE
)
210 __set_bit(vif
->hw_queue
[ac
], data
->used_hw_queues
);
212 if (vif
->cab_queue
!= IEEE80211_INVAL_HW_QUEUE
)
213 __set_bit(vif
->cab_queue
, data
->used_hw_queues
);
215 /* Mark MAC IDs as used by clearing the available bit, and
216 * (below) mark TSFs as used if their existing use is not
217 * compatible with the new interface type.
218 * No locking or atomic bit operations are needed since the
219 * data is on the stack of the caller function.
221 __clear_bit(mvmvif
->id
, data
->available_mac_ids
);
223 /* find a suitable tsf_id */
224 iwl_mvm_mac_tsf_id_iter(_data
, mac
, vif
);
228 * Get the mask of the queus used by the vif
230 u32
iwl_mvm_mac_get_queues_mask(struct iwl_mvm
*mvm
,
231 struct ieee80211_vif
*vif
)
235 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
)
236 return BIT(IWL_MVM_OFFCHANNEL_QUEUE
);
238 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++)
239 if (vif
->hw_queue
[ac
] != IEEE80211_INVAL_HW_QUEUE
)
240 qmask
|= BIT(vif
->hw_queue
[ac
]);
245 void iwl_mvm_mac_ctxt_recalc_tsf_id(struct iwl_mvm
*mvm
,
246 struct ieee80211_vif
*vif
)
248 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
249 struct iwl_mvm_mac_iface_iterator_data data
= {
252 .available_tsf_ids
= { (1 << NUM_TSF_IDS
) - 1 },
253 /* no preference yet */
254 .preferred_tsf
= NUM_TSF_IDS
,
257 ieee80211_iterate_active_interfaces_atomic(
258 mvm
->hw
, IEEE80211_IFACE_ITER_RESUME_ALL
,
259 iwl_mvm_mac_tsf_id_iter
, &data
);
261 if (data
.preferred_tsf
!= NUM_TSF_IDS
)
262 mvmvif
->tsf_id
= data
.preferred_tsf
;
263 else if (!test_bit(mvmvif
->tsf_id
, data
.available_tsf_ids
))
264 mvmvif
->tsf_id
= find_first_bit(data
.available_tsf_ids
,
268 static int iwl_mvm_mac_ctxt_allocate_resources(struct iwl_mvm
*mvm
,
269 struct ieee80211_vif
*vif
)
271 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
272 struct iwl_mvm_mac_iface_iterator_data data
= {
275 .available_mac_ids
= { (1 << NUM_MAC_INDEX_DRIVER
) - 1 },
276 .available_tsf_ids
= { (1 << NUM_TSF_IDS
) - 1 },
277 /* no preference yet */
278 .preferred_tsf
= NUM_TSF_IDS
,
280 BIT(IWL_MVM_OFFCHANNEL_QUEUE
) |
281 BIT(mvm
->aux_queue
) |
282 BIT(IWL_MVM_CMD_QUEUE
)
290 * Allocate a MAC ID and a TSF for this MAC, along with the queues
291 * and other resources.
295 * Before the iterator, we start with all MAC IDs and TSFs available.
297 * During iteration, all MAC IDs are cleared that are in use by other
298 * virtual interfaces, and all TSF IDs are cleared that can't be used
299 * by this new virtual interface because they're used by an interface
300 * that can't share it with the new one.
301 * At the same time, we check if there's a preferred TSF in the case
302 * that we should share it with another interface.
305 /* Currently, MAC ID 0 should be used only for the managed/IBSS vif */
307 case NL80211_IFTYPE_ADHOC
:
309 case NL80211_IFTYPE_STATION
:
314 __clear_bit(0, data
.available_mac_ids
);
317 ieee80211_iterate_active_interfaces_atomic(
318 mvm
->hw
, IEEE80211_IFACE_ITER_RESUME_ALL
,
319 iwl_mvm_mac_iface_iterator
, &data
);
322 * In the case we're getting here during resume, it's similar to
323 * firmware restart, and with RESUME_ALL the iterator will find
324 * the vif being added already.
325 * We don't want to reassign any IDs in either case since doing
326 * so would probably assign different IDs (as interfaces aren't
327 * necessarily added in the same order), but the old IDs were
328 * preserved anyway, so skip ID assignment for both resume and
334 /* Therefore, in recovery, we can't get here */
335 if (WARN_ON_ONCE(test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)))
338 mvmvif
->id
= find_first_bit(data
.available_mac_ids
,
339 NUM_MAC_INDEX_DRIVER
);
340 if (mvmvif
->id
== NUM_MAC_INDEX_DRIVER
) {
341 IWL_ERR(mvm
, "Failed to init MAC context - no free ID!\n");
346 if (data
.preferred_tsf
!= NUM_TSF_IDS
)
347 mvmvif
->tsf_id
= data
.preferred_tsf
;
349 mvmvif
->tsf_id
= find_first_bit(data
.available_tsf_ids
,
351 if (mvmvif
->tsf_id
== NUM_TSF_IDS
) {
352 IWL_ERR(mvm
, "Failed to init MAC context - no free TSF!\n");
359 INIT_LIST_HEAD(&mvmvif
->time_event_data
.list
);
360 mvmvif
->time_event_data
.id
= TE_MAX
;
362 /* No need to allocate data queues to P2P Device MAC.*/
363 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
364 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++)
365 vif
->hw_queue
[ac
] = IEEE80211_INVAL_HW_QUEUE
;
370 /* Find available queues, and allocate them to the ACs */
371 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++) {
372 u8 queue
= find_first_zero_bit(data
.used_hw_queues
,
373 mvm
->first_agg_queue
);
375 if (queue
>= mvm
->first_agg_queue
) {
376 IWL_ERR(mvm
, "Failed to allocate queue\n");
381 __set_bit(queue
, data
.used_hw_queues
);
382 vif
->hw_queue
[ac
] = queue
;
385 /* Allocate the CAB queue for softAP and GO interfaces */
386 if (vif
->type
== NL80211_IFTYPE_AP
) {
387 u8 queue
= find_first_zero_bit(data
.used_hw_queues
,
388 mvm
->first_agg_queue
);
390 if (queue
>= mvm
->first_agg_queue
) {
391 IWL_ERR(mvm
, "Failed to allocate cab queue\n");
396 vif
->cab_queue
= queue
;
398 vif
->cab_queue
= IEEE80211_INVAL_HW_QUEUE
;
401 mvmvif
->bcast_sta
.sta_id
= IWL_MVM_STATION_COUNT
;
402 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
404 for (i
= 0; i
< NUM_IWL_MVM_SMPS_REQ
; i
++)
405 mvmvif
->smps_requests
[i
] = IEEE80211_SMPS_AUTOMATIC
;
410 memset(mvmvif
, 0, sizeof(struct iwl_mvm_vif
));
411 memset(vif
->hw_queue
, IEEE80211_INVAL_HW_QUEUE
, sizeof(vif
->hw_queue
));
412 vif
->cab_queue
= IEEE80211_INVAL_HW_QUEUE
;
416 int iwl_mvm_mac_ctxt_init(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
421 lockdep_assert_held(&mvm
->mutex
);
423 ret
= iwl_mvm_mac_ctxt_allocate_resources(mvm
, vif
);
428 case NL80211_IFTYPE_P2P_DEVICE
:
429 iwl_trans_ac_txq_enable(mvm
->trans
, IWL_MVM_OFFCHANNEL_QUEUE
,
432 case NL80211_IFTYPE_AP
:
433 iwl_trans_ac_txq_enable(mvm
->trans
, vif
->cab_queue
,
434 IWL_MVM_TX_FIFO_MCAST
);
437 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++)
438 iwl_trans_ac_txq_enable(mvm
->trans
, vif
->hw_queue
[ac
],
439 iwl_mvm_ac_to_tx_fifo
[ac
]);
446 void iwl_mvm_mac_ctxt_release(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
450 lockdep_assert_held(&mvm
->mutex
);
453 case NL80211_IFTYPE_P2P_DEVICE
:
454 iwl_trans_txq_disable(mvm
->trans
, IWL_MVM_OFFCHANNEL_QUEUE
);
456 case NL80211_IFTYPE_AP
:
457 iwl_trans_txq_disable(mvm
->trans
, vif
->cab_queue
);
460 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++)
461 iwl_trans_txq_disable(mvm
->trans
, vif
->hw_queue
[ac
]);
465 static void iwl_mvm_ack_rates(struct iwl_mvm
*mvm
,
466 struct ieee80211_vif
*vif
,
467 enum ieee80211_band band
,
468 u8
*cck_rates
, u8
*ofdm_rates
)
470 struct ieee80211_supported_band
*sband
;
471 unsigned long basic
= vif
->bss_conf
.basic_rates
;
472 int lowest_present_ofdm
= 100;
473 int lowest_present_cck
= 100;
478 sband
= mvm
->hw
->wiphy
->bands
[band
];
480 for_each_set_bit(i
, &basic
, BITS_PER_LONG
) {
481 int hw
= sband
->bitrates
[i
].hw_value
;
482 if (hw
>= IWL_FIRST_OFDM_RATE
) {
483 ofdm
|= BIT(hw
- IWL_FIRST_OFDM_RATE
);
484 if (lowest_present_ofdm
> hw
)
485 lowest_present_ofdm
= hw
;
487 BUILD_BUG_ON(IWL_FIRST_CCK_RATE
!= 0);
490 if (lowest_present_cck
> hw
)
491 lowest_present_cck
= hw
;
496 * Now we've got the basic rates as bitmaps in the ofdm and cck
497 * variables. This isn't sufficient though, as there might not
498 * be all the right rates in the bitmap. E.g. if the only basic
499 * rates are 5.5 Mbps and 11 Mbps, we still need to add 1 Mbps
500 * and 6 Mbps because the 802.11-2007 standard says in 9.6:
502 * [...] a STA responding to a received frame shall transmit
503 * its Control Response frame [...] at the highest rate in the
504 * BSSBasicRateSet parameter that is less than or equal to the
505 * rate of the immediately previous frame in the frame exchange
506 * sequence ([...]) and that is of the same modulation class
507 * ([...]) as the received frame. If no rate contained in the
508 * BSSBasicRateSet parameter meets these conditions, then the
509 * control frame sent in response to a received frame shall be
510 * transmitted at the highest mandatory rate of the PHY that is
511 * less than or equal to the rate of the received frame, and
512 * that is of the same modulation class as the received frame.
514 * As a consequence, we need to add all mandatory rates that are
515 * lower than all of the basic rates to these bitmaps.
518 if (IWL_RATE_24M_INDEX
< lowest_present_ofdm
)
519 ofdm
|= IWL_RATE_BIT_MSK(24) >> IWL_FIRST_OFDM_RATE
;
520 if (IWL_RATE_12M_INDEX
< lowest_present_ofdm
)
521 ofdm
|= IWL_RATE_BIT_MSK(12) >> IWL_FIRST_OFDM_RATE
;
522 /* 6M already there or needed so always add */
523 ofdm
|= IWL_RATE_BIT_MSK(6) >> IWL_FIRST_OFDM_RATE
;
526 * CCK is a bit more complex with DSSS vs. HR/DSSS vs. ERP.
528 * - if no CCK rates are basic, it must be ERP since there must
529 * be some basic rates at all, so they're OFDM => ERP PHY
530 * (or we're in 5 GHz, and the cck bitmap will never be used)
531 * - if 11M is a basic rate, it must be ERP as well, so add 5.5M
532 * - if 5.5M is basic, 1M and 2M are mandatory
533 * - if 2M is basic, 1M is mandatory
534 * - if 1M is basic, that's the only valid ACK rate.
535 * As a consequence, it's not as complicated as it sounds, just add
536 * any lower rates to the ACK rate bitmap.
538 if (IWL_RATE_11M_INDEX
< lowest_present_cck
)
539 cck
|= IWL_RATE_BIT_MSK(11) >> IWL_FIRST_CCK_RATE
;
540 if (IWL_RATE_5M_INDEX
< lowest_present_cck
)
541 cck
|= IWL_RATE_BIT_MSK(5) >> IWL_FIRST_CCK_RATE
;
542 if (IWL_RATE_2M_INDEX
< lowest_present_cck
)
543 cck
|= IWL_RATE_BIT_MSK(2) >> IWL_FIRST_CCK_RATE
;
544 /* 1M already there or needed so always add */
545 cck
|= IWL_RATE_BIT_MSK(1) >> IWL_FIRST_CCK_RATE
;
551 static void iwl_mvm_mac_ctxt_set_ht_flags(struct iwl_mvm
*mvm
,
552 struct ieee80211_vif
*vif
,
553 struct iwl_mac_ctx_cmd
*cmd
)
555 /* for both sta and ap, ht_operation_mode hold the protection_mode */
556 u8 protection_mode
= vif
->bss_conf
.ht_operation_mode
&
557 IEEE80211_HT_OP_MODE_PROTECTION
;
558 /* The fw does not distinguish between ht and fat */
559 u32 ht_flag
= MAC_PROT_FLG_HT_PROT
| MAC_PROT_FLG_FAT_PROT
;
561 IWL_DEBUG_RATE(mvm
, "protection mode set to %d\n", protection_mode
);
563 * See section 9.23.3.1 of IEEE 80211-2012.
564 * Nongreenfield HT STAs Present is not supported.
566 switch (protection_mode
) {
567 case IEEE80211_HT_OP_MODE_PROTECTION_NONE
:
569 case IEEE80211_HT_OP_MODE_PROTECTION_NONMEMBER
:
570 case IEEE80211_HT_OP_MODE_PROTECTION_NONHT_MIXED
:
571 cmd
->protection_flags
|= cpu_to_le32(ht_flag
);
573 case IEEE80211_HT_OP_MODE_PROTECTION_20MHZ
:
574 /* Protect when channel wider than 20MHz */
575 if (vif
->bss_conf
.chandef
.width
> NL80211_CHAN_WIDTH_20
)
576 cmd
->protection_flags
|= cpu_to_le32(ht_flag
);
579 IWL_ERR(mvm
, "Illegal protection mode %d\n",
585 static void iwl_mvm_mac_ctxt_cmd_common(struct iwl_mvm
*mvm
,
586 struct ieee80211_vif
*vif
,
587 struct iwl_mac_ctx_cmd
*cmd
,
590 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
591 struct ieee80211_chanctx_conf
*chanctx
;
592 bool ht_enabled
= !!(vif
->bss_conf
.ht_operation_mode
&
593 IEEE80211_HT_OP_MODE_PROTECTION
);
594 u8 cck_ack_rates
, ofdm_ack_rates
;
597 cmd
->id_and_color
= cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
599 cmd
->action
= cpu_to_le32(action
);
602 case NL80211_IFTYPE_STATION
:
604 cmd
->mac_type
= cpu_to_le32(FW_MAC_TYPE_P2P_STA
);
606 cmd
->mac_type
= cpu_to_le32(FW_MAC_TYPE_BSS_STA
);
608 case NL80211_IFTYPE_AP
:
609 cmd
->mac_type
= cpu_to_le32(FW_MAC_TYPE_GO
);
611 case NL80211_IFTYPE_MONITOR
:
612 cmd
->mac_type
= cpu_to_le32(FW_MAC_TYPE_LISTENER
);
614 case NL80211_IFTYPE_P2P_DEVICE
:
615 cmd
->mac_type
= cpu_to_le32(FW_MAC_TYPE_P2P_DEVICE
);
617 case NL80211_IFTYPE_ADHOC
:
618 cmd
->mac_type
= cpu_to_le32(FW_MAC_TYPE_IBSS
);
624 cmd
->tsf_id
= cpu_to_le32(mvmvif
->tsf_id
);
626 memcpy(cmd
->node_addr
, vif
->addr
, ETH_ALEN
);
627 if (vif
->bss_conf
.bssid
)
628 memcpy(cmd
->bssid_addr
, vif
->bss_conf
.bssid
, ETH_ALEN
);
630 eth_broadcast_addr(cmd
->bssid_addr
);
633 chanctx
= rcu_dereference(vif
->chanctx_conf
);
634 iwl_mvm_ack_rates(mvm
, vif
, chanctx
? chanctx
->def
.chan
->band
635 : IEEE80211_BAND_2GHZ
,
636 &cck_ack_rates
, &ofdm_ack_rates
);
639 cmd
->cck_rates
= cpu_to_le32((u32
)cck_ack_rates
);
640 cmd
->ofdm_rates
= cpu_to_le32((u32
)ofdm_ack_rates
);
642 cmd
->cck_short_preamble
=
643 cpu_to_le32(vif
->bss_conf
.use_short_preamble
?
644 MAC_FLG_SHORT_PREAMBLE
: 0);
646 cpu_to_le32(vif
->bss_conf
.use_short_slot
?
647 MAC_FLG_SHORT_SLOT
: 0);
649 for (i
= 0; i
< IEEE80211_NUM_ACS
; i
++) {
650 u8 txf
= iwl_mvm_ac_to_tx_fifo
[i
];
652 cmd
->ac
[txf
].cw_min
=
653 cpu_to_le16(mvmvif
->queue_params
[i
].cw_min
);
654 cmd
->ac
[txf
].cw_max
=
655 cpu_to_le16(mvmvif
->queue_params
[i
].cw_max
);
656 cmd
->ac
[txf
].edca_txop
=
657 cpu_to_le16(mvmvif
->queue_params
[i
].txop
* 32);
658 cmd
->ac
[txf
].aifsn
= mvmvif
->queue_params
[i
].aifs
;
659 cmd
->ac
[txf
].fifos_mask
= BIT(txf
);
662 /* in AP mode, the MCAST FIFO takes the EDCA params from VO */
663 if (vif
->type
== NL80211_IFTYPE_AP
)
664 cmd
->ac
[IWL_MVM_TX_FIFO_VO
].fifos_mask
|=
665 BIT(IWL_MVM_TX_FIFO_MCAST
);
667 if (vif
->bss_conf
.qos
)
668 cmd
->qos_flags
|= cpu_to_le32(MAC_QOS_FLG_UPDATE_EDCA
);
670 if (vif
->bss_conf
.use_cts_prot
)
671 cmd
->protection_flags
|= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT
);
673 IWL_DEBUG_RATE(mvm
, "use_cts_prot %d, ht_operation_mode %d\n",
674 vif
->bss_conf
.use_cts_prot
,
675 vif
->bss_conf
.ht_operation_mode
);
676 if (vif
->bss_conf
.chandef
.width
!= NL80211_CHAN_WIDTH_20_NOHT
)
677 cmd
->qos_flags
|= cpu_to_le32(MAC_QOS_FLG_TGN
);
679 iwl_mvm_mac_ctxt_set_ht_flags(mvm
, vif
, cmd
);
681 cmd
->filter_flags
= cpu_to_le32(MAC_FILTER_ACCEPT_GRP
);
684 static int iwl_mvm_mac_ctxt_send_cmd(struct iwl_mvm
*mvm
,
685 struct iwl_mac_ctx_cmd
*cmd
)
687 int ret
= iwl_mvm_send_cmd_pdu(mvm
, MAC_CONTEXT_CMD
, 0,
690 IWL_ERR(mvm
, "Failed to send MAC context (action:%d): %d\n",
691 le32_to_cpu(cmd
->action
), ret
);
695 static int iwl_mvm_mac_ctxt_cmd_sta(struct iwl_mvm
*mvm
,
696 struct ieee80211_vif
*vif
,
697 u32 action
, bool force_assoc_off
)
699 struct iwl_mac_ctx_cmd cmd
= {};
700 struct iwl_mac_data_sta
*ctxt_sta
;
702 WARN_ON(vif
->type
!= NL80211_IFTYPE_STATION
);
704 /* Fill the common data for all mac context types */
705 iwl_mvm_mac_ctxt_cmd_common(mvm
, vif
, &cmd
, action
);
708 struct ieee80211_p2p_noa_attr
*noa
=
709 &vif
->bss_conf
.p2p_noa_attr
;
711 cmd
.p2p_sta
.ctwin
= cpu_to_le32(noa
->oppps_ctwindow
&
712 IEEE80211_P2P_OPPPS_CTWINDOW_MASK
);
713 ctxt_sta
= &cmd
.p2p_sta
.sta
;
718 /* We need the dtim_period to set the MAC as associated */
719 if (vif
->bss_conf
.assoc
&& vif
->bss_conf
.dtim_period
&&
723 /* Allow beacons to pass through as long as we are not
724 * associated, or we do not have dtim period information.
726 cmd
.filter_flags
|= cpu_to_le32(MAC_FILTER_IN_BEACON
);
729 * The DTIM count counts down, so when it is N that means N
730 * more beacon intervals happen until the DTIM TBTT. Therefore
731 * add this to the current time. If that ends up being in the
732 * future, the firmware will handle it.
734 * Also note that the system_timestamp (which we get here as
735 * "sync_device_ts") and TSF timestamp aren't at exactly the
736 * same offset in the frame -- the TSF is at the first symbol
737 * of the TSF, the system timestamp is at signal acquisition
738 * time. This means there's an offset between them of at most
739 * a few hundred microseconds (24 * 8 bits + PLCP time gives
740 * 384us in the longest case), this is currently not relevant
741 * as the firmware wakes up around 2ms before the TBTT.
743 dtim_offs
= vif
->bss_conf
.sync_dtim_count
*
744 vif
->bss_conf
.beacon_int
;
745 /* convert TU to usecs */
749 cpu_to_le64(vif
->bss_conf
.sync_tsf
+ dtim_offs
);
750 ctxt_sta
->dtim_time
=
751 cpu_to_le32(vif
->bss_conf
.sync_device_ts
+ dtim_offs
);
753 IWL_DEBUG_INFO(mvm
, "DTIM TBTT is 0x%llx/0x%x, offset %d\n",
754 le64_to_cpu(ctxt_sta
->dtim_tsf
),
755 le32_to_cpu(ctxt_sta
->dtim_time
),
758 ctxt_sta
->is_assoc
= cpu_to_le32(1);
760 ctxt_sta
->is_assoc
= cpu_to_le32(0);
763 ctxt_sta
->bi
= cpu_to_le32(vif
->bss_conf
.beacon_int
);
764 ctxt_sta
->bi_reciprocal
=
765 cpu_to_le32(iwl_mvm_reciprocal(vif
->bss_conf
.beacon_int
));
766 ctxt_sta
->dtim_interval
= cpu_to_le32(vif
->bss_conf
.beacon_int
*
767 vif
->bss_conf
.dtim_period
);
768 ctxt_sta
->dtim_reciprocal
=
769 cpu_to_le32(iwl_mvm_reciprocal(vif
->bss_conf
.beacon_int
*
770 vif
->bss_conf
.dtim_period
));
772 ctxt_sta
->listen_interval
= cpu_to_le32(mvm
->hw
->conf
.listen_interval
);
773 ctxt_sta
->assoc_id
= cpu_to_le32(vif
->bss_conf
.aid
);
775 return iwl_mvm_mac_ctxt_send_cmd(mvm
, &cmd
);
778 static int iwl_mvm_mac_ctxt_cmd_listener(struct iwl_mvm
*mvm
,
779 struct ieee80211_vif
*vif
,
782 struct iwl_mac_ctx_cmd cmd
= {};
784 WARN_ON(vif
->type
!= NL80211_IFTYPE_MONITOR
);
786 iwl_mvm_mac_ctxt_cmd_common(mvm
, vif
, &cmd
, action
);
788 cmd
.filter_flags
= cpu_to_le32(MAC_FILTER_IN_PROMISC
|
789 MAC_FILTER_IN_CONTROL_AND_MGMT
|
790 MAC_FILTER_IN_BEACON
|
791 MAC_FILTER_IN_PROBE_REQUEST
|
792 MAC_FILTER_IN_CRC32
);
793 mvm
->hw
->flags
|= IEEE80211_HW_RX_INCLUDES_FCS
;
795 return iwl_mvm_mac_ctxt_send_cmd(mvm
, &cmd
);
798 static int iwl_mvm_mac_ctxt_cmd_ibss(struct iwl_mvm
*mvm
,
799 struct ieee80211_vif
*vif
,
802 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
803 struct iwl_mac_ctx_cmd cmd
= {};
805 WARN_ON(vif
->type
!= NL80211_IFTYPE_ADHOC
);
807 iwl_mvm_mac_ctxt_cmd_common(mvm
, vif
, &cmd
, action
);
809 cmd
.filter_flags
= cpu_to_le32(MAC_FILTER_IN_BEACON
|
810 MAC_FILTER_IN_PROBE_REQUEST
);
812 /* cmd.ibss.beacon_time/cmd.ibss.beacon_tsf are curently ignored */
813 cmd
.ibss
.bi
= cpu_to_le32(vif
->bss_conf
.beacon_int
);
814 cmd
.ibss
.bi_reciprocal
=
815 cpu_to_le32(iwl_mvm_reciprocal(vif
->bss_conf
.beacon_int
));
817 /* TODO: Assumes that the beacon id == mac context id */
818 cmd
.ibss
.beacon_template
= cpu_to_le32(mvmvif
->id
);
820 return iwl_mvm_mac_ctxt_send_cmd(mvm
, &cmd
);
823 struct iwl_mvm_go_iterator_data
{
827 static void iwl_mvm_go_iterator(void *_data
, u8
*mac
, struct ieee80211_vif
*vif
)
829 struct iwl_mvm_go_iterator_data
*data
= _data
;
830 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
832 if (vif
->type
== NL80211_IFTYPE_AP
&& vif
->p2p
&&
833 mvmvif
->ap_ibss_active
)
834 data
->go_active
= true;
837 static int iwl_mvm_mac_ctxt_cmd_p2p_device(struct iwl_mvm
*mvm
,
838 struct ieee80211_vif
*vif
,
841 struct iwl_mac_ctx_cmd cmd
= {};
842 struct iwl_mvm_go_iterator_data data
= {};
844 WARN_ON(vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
);
846 iwl_mvm_mac_ctxt_cmd_common(mvm
, vif
, &cmd
, action
);
848 cmd
.protection_flags
|= cpu_to_le32(MAC_PROT_FLG_TGG_PROTECT
);
850 /* Override the filter flags to accept only probe requests */
851 cmd
.filter_flags
= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST
);
854 * This flag should be set to true when the P2P Device is
855 * discoverable and there is at least another active P2P GO. Settings
856 * this flag will allow the P2P Device to be discoverable on other
857 * channels in addition to its listen channel.
858 * Note that this flag should not be set in other cases as it opens the
859 * Rx filters on all MAC and increases the number of interrupts.
861 ieee80211_iterate_active_interfaces_atomic(
862 mvm
->hw
, IEEE80211_IFACE_ITER_RESUME_ALL
,
863 iwl_mvm_go_iterator
, &data
);
865 cmd
.p2p_dev
.is_disc_extended
= cpu_to_le32(data
.go_active
? 1 : 0);
866 return iwl_mvm_mac_ctxt_send_cmd(mvm
, &cmd
);
869 static void iwl_mvm_mac_ctxt_set_tim(struct iwl_mvm
*mvm
,
870 struct iwl_mac_beacon_cmd
*beacon_cmd
,
871 u8
*beacon
, u32 frame_size
)
874 struct ieee80211_mgmt
*mgmt
= (struct ieee80211_mgmt
*)beacon
;
876 /* The index is relative to frame start but we start looking at the
877 * variable-length part of the beacon. */
878 tim_idx
= mgmt
->u
.beacon
.variable
- beacon
;
880 /* Parse variable-length elements of beacon to find WLAN_EID_TIM */
881 while ((tim_idx
< (frame_size
- 2)) &&
882 (beacon
[tim_idx
] != WLAN_EID_TIM
))
883 tim_idx
+= beacon
[tim_idx
+1] + 2;
885 /* If TIM field was found, set variables */
886 if ((tim_idx
< (frame_size
- 1)) && (beacon
[tim_idx
] == WLAN_EID_TIM
)) {
887 beacon_cmd
->tim_idx
= cpu_to_le32(tim_idx
);
888 beacon_cmd
->tim_size
= cpu_to_le32((u32
)beacon
[tim_idx
+1]);
890 IWL_WARN(mvm
, "Unable to find TIM Element in beacon\n");
894 static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm
*mvm
,
895 struct ieee80211_vif
*vif
,
896 struct sk_buff
*beacon
)
898 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
899 struct iwl_host_cmd cmd
= {
900 .id
= BEACON_TEMPLATE_CMD
,
903 struct iwl_mac_beacon_cmd beacon_cmd
= {};
904 struct ieee80211_tx_info
*info
;
908 if (WARN_ON(!beacon
))
911 beacon_skb_len
= beacon
->len
;
913 /* TODO: for now the beacon template id is set to be the mac context id.
914 * Might be better to handle it as another resource ... */
915 beacon_cmd
.template_id
= cpu_to_le32((u32
)mvmvif
->id
);
917 /* Set up TX command fields */
918 beacon_cmd
.tx
.len
= cpu_to_le16((u16
)beacon_skb_len
);
919 beacon_cmd
.tx
.sta_id
= mvmvif
->bcast_sta
.sta_id
;
920 beacon_cmd
.tx
.life_time
= cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE
);
921 beacon_cmd
.tx
.tx_flags
= cpu_to_le32(TX_CMD_FLG_SEQ_CTL
|
925 mvm
->mgmt_last_antenna_idx
=
926 iwl_mvm_next_antenna(mvm
, mvm
->fw
->valid_tx_ant
,
927 mvm
->mgmt_last_antenna_idx
);
929 beacon_cmd
.tx
.rate_n_flags
=
930 cpu_to_le32(BIT(mvm
->mgmt_last_antenna_idx
) <<
933 info
= IEEE80211_SKB_CB(beacon
);
935 if (info
->band
== IEEE80211_BAND_5GHZ
|| vif
->p2p
) {
936 rate
= IWL_FIRST_OFDM_RATE
;
938 rate
= IWL_FIRST_CCK_RATE
;
939 beacon_cmd
.tx
.rate_n_flags
|= cpu_to_le32(RATE_MCS_CCK_MSK
);
941 beacon_cmd
.tx
.rate_n_flags
|=
942 cpu_to_le32(iwl_mvm_mac80211_idx_to_hwrate(rate
));
944 /* Set up TX beacon command fields */
945 if (vif
->type
== NL80211_IFTYPE_AP
)
946 iwl_mvm_mac_ctxt_set_tim(mvm
, &beacon_cmd
,
951 cmd
.len
[0] = sizeof(beacon_cmd
);
952 cmd
.data
[0] = &beacon_cmd
;
953 cmd
.dataflags
[0] = 0;
954 cmd
.len
[1] = beacon_skb_len
;
955 cmd
.data
[1] = beacon
->data
;
956 cmd
.dataflags
[1] = IWL_HCMD_DFL_DUP
;
958 return iwl_mvm_send_cmd(mvm
, &cmd
);
961 /* The beacon template for the AP/GO/IBSS has changed and needs update */
962 int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm
*mvm
,
963 struct ieee80211_vif
*vif
)
965 struct sk_buff
*beacon
;
968 WARN_ON(vif
->type
!= NL80211_IFTYPE_AP
&&
969 vif
->type
!= NL80211_IFTYPE_ADHOC
);
971 beacon
= ieee80211_beacon_get(mvm
->hw
, vif
);
975 ret
= iwl_mvm_mac_ctxt_send_beacon(mvm
, vif
, beacon
);
976 dev_kfree_skb(beacon
);
980 struct iwl_mvm_mac_ap_iterator_data
{
982 struct ieee80211_vif
*vif
;
983 u32 beacon_device_ts
;
987 /* Find the beacon_device_ts and beacon_int for a managed interface */
988 static void iwl_mvm_mac_ap_iterator(void *_data
, u8
*mac
,
989 struct ieee80211_vif
*vif
)
991 struct iwl_mvm_mac_ap_iterator_data
*data
= _data
;
993 if (vif
->type
!= NL80211_IFTYPE_STATION
|| !vif
->bss_conf
.assoc
)
996 /* Station client has higher priority over P2P client*/
997 if (vif
->p2p
&& data
->beacon_device_ts
)
1000 data
->beacon_device_ts
= vif
->bss_conf
.sync_device_ts
;
1001 data
->beacon_int
= vif
->bss_conf
.beacon_int
;
1005 * Fill the specific data for mac context of type AP of P2P GO
1007 static void iwl_mvm_mac_ctxt_cmd_fill_ap(struct iwl_mvm
*mvm
,
1008 struct ieee80211_vif
*vif
,
1009 struct iwl_mac_data_ap
*ctxt_ap
,
1012 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1013 struct iwl_mvm_mac_ap_iterator_data data
= {
1016 .beacon_device_ts
= 0
1019 ctxt_ap
->bi
= cpu_to_le32(vif
->bss_conf
.beacon_int
);
1020 ctxt_ap
->bi_reciprocal
=
1021 cpu_to_le32(iwl_mvm_reciprocal(vif
->bss_conf
.beacon_int
));
1022 ctxt_ap
->dtim_interval
= cpu_to_le32(vif
->bss_conf
.beacon_int
*
1023 vif
->bss_conf
.dtim_period
);
1024 ctxt_ap
->dtim_reciprocal
=
1025 cpu_to_le32(iwl_mvm_reciprocal(vif
->bss_conf
.beacon_int
*
1026 vif
->bss_conf
.dtim_period
));
1028 ctxt_ap
->mcast_qid
= cpu_to_le32(vif
->cab_queue
);
1031 * Only set the beacon time when the MAC is being added, when we
1032 * just modify the MAC then we should keep the time -- the firmware
1033 * can otherwise have a "jumping" TBTT.
1037 * If there is a station/P2P client interface which is
1038 * associated, set the AP's TBTT far enough from the station's
1039 * TBTT. Otherwise, set it to the current system time
1041 ieee80211_iterate_active_interfaces_atomic(
1042 mvm
->hw
, IEEE80211_IFACE_ITER_RESUME_ALL
,
1043 iwl_mvm_mac_ap_iterator
, &data
);
1045 if (data
.beacon_device_ts
) {
1046 u32 rand
= (prandom_u32() % (64 - 36)) + 36;
1047 mvmvif
->ap_beacon_time
= data
.beacon_device_ts
+
1048 ieee80211_tu_to_usec(data
.beacon_int
* rand
/
1051 mvmvif
->ap_beacon_time
=
1052 iwl_read_prph(mvm
->trans
,
1053 DEVICE_SYSTEM_TIME_REG
);
1057 ctxt_ap
->beacon_time
= cpu_to_le32(mvmvif
->ap_beacon_time
);
1058 ctxt_ap
->beacon_tsf
= 0; /* unused */
1060 /* TODO: Assume that the beacon id == mac context id */
1061 ctxt_ap
->beacon_template
= cpu_to_le32(mvmvif
->id
);
1064 static int iwl_mvm_mac_ctxt_cmd_ap(struct iwl_mvm
*mvm
,
1065 struct ieee80211_vif
*vif
,
1068 struct iwl_mac_ctx_cmd cmd
= {};
1070 WARN_ON(vif
->type
!= NL80211_IFTYPE_AP
|| vif
->p2p
);
1072 /* Fill the common data for all mac context types */
1073 iwl_mvm_mac_ctxt_cmd_common(mvm
, vif
, &cmd
, action
);
1076 * pass probe requests and beacons from other APs (needed
1077 * for ht protection)
1079 cmd
.filter_flags
|= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST
|
1080 MAC_FILTER_IN_BEACON
);
1082 /* Fill the data specific for ap mode */
1083 iwl_mvm_mac_ctxt_cmd_fill_ap(mvm
, vif
, &cmd
.ap
,
1084 action
== FW_CTXT_ACTION_ADD
);
1086 return iwl_mvm_mac_ctxt_send_cmd(mvm
, &cmd
);
1089 static int iwl_mvm_mac_ctxt_cmd_go(struct iwl_mvm
*mvm
,
1090 struct ieee80211_vif
*vif
,
1093 struct iwl_mac_ctx_cmd cmd
= {};
1094 struct ieee80211_p2p_noa_attr
*noa
= &vif
->bss_conf
.p2p_noa_attr
;
1096 WARN_ON(vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
);
1098 /* Fill the common data for all mac context types */
1099 iwl_mvm_mac_ctxt_cmd_common(mvm
, vif
, &cmd
, action
);
1102 * pass probe requests and beacons from other APs (needed
1103 * for ht protection)
1105 cmd
.filter_flags
|= cpu_to_le32(MAC_FILTER_IN_PROBE_REQUEST
|
1106 MAC_FILTER_IN_BEACON
);
1108 /* Fill the data specific for GO mode */
1109 iwl_mvm_mac_ctxt_cmd_fill_ap(mvm
, vif
, &cmd
.go
.ap
,
1110 action
== FW_CTXT_ACTION_ADD
);
1112 cmd
.go
.ctwin
= cpu_to_le32(noa
->oppps_ctwindow
&
1113 IEEE80211_P2P_OPPPS_CTWINDOW_MASK
);
1114 cmd
.go
.opp_ps_enabled
=
1115 cpu_to_le32(!!(noa
->oppps_ctwindow
&
1116 IEEE80211_P2P_OPPPS_ENABLE_BIT
));
1118 return iwl_mvm_mac_ctxt_send_cmd(mvm
, &cmd
);
1121 static int iwl_mvm_mac_ctx_send(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
1122 u32 action
, bool force_assoc_off
)
1124 switch (vif
->type
) {
1125 case NL80211_IFTYPE_STATION
:
1126 return iwl_mvm_mac_ctxt_cmd_sta(mvm
, vif
, action
,
1129 case NL80211_IFTYPE_AP
:
1131 return iwl_mvm_mac_ctxt_cmd_ap(mvm
, vif
, action
);
1133 return iwl_mvm_mac_ctxt_cmd_go(mvm
, vif
, action
);
1135 case NL80211_IFTYPE_MONITOR
:
1136 return iwl_mvm_mac_ctxt_cmd_listener(mvm
, vif
, action
);
1137 case NL80211_IFTYPE_P2P_DEVICE
:
1138 return iwl_mvm_mac_ctxt_cmd_p2p_device(mvm
, vif
, action
);
1139 case NL80211_IFTYPE_ADHOC
:
1140 return iwl_mvm_mac_ctxt_cmd_ibss(mvm
, vif
, action
);
1148 int iwl_mvm_mac_ctxt_add(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
1150 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1153 if (WARN_ONCE(mvmvif
->uploaded
, "Adding active MAC %pM/%d\n",
1154 vif
->addr
, ieee80211_vif_type_p2p(vif
)))
1157 ret
= iwl_mvm_mac_ctx_send(mvm
, vif
, FW_CTXT_ACTION_ADD
,
1162 /* will only do anything at resume from D3 time */
1163 iwl_mvm_set_last_nonqos_seq(mvm
, vif
);
1165 mvmvif
->uploaded
= true;
1169 int iwl_mvm_mac_ctxt_changed(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
1170 bool force_assoc_off
)
1172 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1174 if (WARN_ONCE(!mvmvif
->uploaded
, "Changing inactive MAC %pM/%d\n",
1175 vif
->addr
, ieee80211_vif_type_p2p(vif
)))
1178 return iwl_mvm_mac_ctx_send(mvm
, vif
, FW_CTXT_ACTION_MODIFY
,
1182 int iwl_mvm_mac_ctxt_remove(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
1184 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1185 struct iwl_mac_ctx_cmd cmd
;
1188 if (WARN_ONCE(!mvmvif
->uploaded
, "Removing inactive MAC %pM/%d\n",
1189 vif
->addr
, ieee80211_vif_type_p2p(vif
)))
1192 memset(&cmd
, 0, sizeof(cmd
));
1194 cmd
.id_and_color
= cpu_to_le32(FW_CMD_ID_AND_COLOR(mvmvif
->id
,
1196 cmd
.action
= cpu_to_le32(FW_CTXT_ACTION_REMOVE
);
1198 ret
= iwl_mvm_send_cmd_pdu(mvm
, MAC_CONTEXT_CMD
, 0,
1201 IWL_ERR(mvm
, "Failed to remove MAC context: %d\n", ret
);
1205 mvmvif
->uploaded
= false;
1207 if (vif
->type
== NL80211_IFTYPE_MONITOR
)
1208 mvm
->hw
->flags
&= ~IEEE80211_HW_RX_INCLUDES_FCS
;
1213 int iwl_mvm_rx_beacon_notif(struct iwl_mvm
*mvm
,
1214 struct iwl_rx_cmd_buffer
*rxb
,
1215 struct iwl_device_cmd
*cmd
)
1217 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
1218 struct iwl_beacon_notif
*beacon
= (void *)pkt
->data
;
1219 u16 status __maybe_unused
=
1220 le16_to_cpu(beacon
->beacon_notify_hdr
.status
.status
);
1221 u32 rate __maybe_unused
=
1222 le32_to_cpu(beacon
->beacon_notify_hdr
.initial_rate
);
1224 lockdep_assert_held(&mvm
->mutex
);
1226 IWL_DEBUG_RX(mvm
, "beacon status %#x retries:%d tsf:0x%16llX rate:%d\n",
1227 status
& TX_STATUS_MSK
,
1228 beacon
->beacon_notify_hdr
.failure_frame
,
1229 le64_to_cpu(beacon
->tsf
),
1232 if (unlikely(mvm
->csa_vif
&& mvm
->csa_vif
->csa_active
)) {
1233 if (!ieee80211_csa_is_complete(mvm
->csa_vif
)) {
1234 iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm
->csa_vif
);
1236 ieee80211_csa_finish(mvm
->csa_vif
);
1237 mvm
->csa_vif
= NULL
;
1244 static void iwl_mvm_beacon_loss_iterator(void *_data
, u8
*mac
,
1245 struct ieee80211_vif
*vif
)
1247 struct iwl_missed_beacons_notif
*missed_beacons
= _data
;
1248 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1250 if (mvmvif
->id
!= (u16
)le32_to_cpu(missed_beacons
->mac_id
))
1254 * TODO: the threshold should be adjusted based on latency conditions,
1255 * and/or in case of a CS flow on one of the other AP vifs.
1257 if (le32_to_cpu(missed_beacons
->consec_missed_beacons_since_last_rx
) >
1258 IWL_MVM_MISSED_BEACONS_THRESHOLD
)
1259 ieee80211_beacon_loss(vif
);
1262 int iwl_mvm_rx_missed_beacons_notif(struct iwl_mvm
*mvm
,
1263 struct iwl_rx_cmd_buffer
*rxb
,
1264 struct iwl_device_cmd
*cmd
)
1266 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
1267 struct iwl_missed_beacons_notif
*mb
= (void *)pkt
->data
;
1270 "missed bcn mac_id=%u, consecutive=%u (%u, %u, %u)\n",
1271 le32_to_cpu(mb
->mac_id
),
1272 le32_to_cpu(mb
->consec_missed_beacons
),
1273 le32_to_cpu(mb
->consec_missed_beacons_since_last_rx
),
1274 le32_to_cpu(mb
->num_recvd_beacons
),
1275 le32_to_cpu(mb
->num_expected_beacons
));
1277 ieee80211_iterate_active_interfaces_atomic(mvm
->hw
,
1278 IEEE80211_IFACE_ITER_NORMAL
,
1279 iwl_mvm_beacon_loss_iterator
,