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 - 2013 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 - 2013 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 <net/mac80211.h>
72 #include "iwl-op-mode.h"
76 #include "time-event.h"
77 #include "iwl-eeprom-parse.h"
78 #include "fw-api-scan.h"
79 #include "iwl-phy-db.h"
81 static const struct ieee80211_iface_limit iwl_mvm_limits
[] = {
84 .types
= BIT(NL80211_IFTYPE_STATION
),
88 .types
= BIT(NL80211_IFTYPE_AP
) |
89 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
90 BIT(NL80211_IFTYPE_P2P_GO
),
94 .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
),
98 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations
[] = {
100 .num_different_channels
= 1,
102 .limits
= iwl_mvm_limits
,
103 .n_limits
= ARRAY_SIZE(iwl_mvm_limits
),
107 #ifdef CONFIG_PM_SLEEP
108 static const struct nl80211_wowlan_tcp_data_token_feature
109 iwl_mvm_wowlan_tcp_token_feature
= {
112 .bufsize
= IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS
,
115 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support
= {
116 .tok
= &iwl_mvm_wowlan_tcp_token_feature
,
117 .data_payload_max
= IWL_WOWLAN_TCP_MAX_PACKET_LEN
-
118 sizeof(struct ethhdr
) -
119 sizeof(struct iphdr
) -
120 sizeof(struct tcphdr
),
121 .data_interval_max
= 65535, /* __le16 in API */
122 .wake_payload_max
= IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN
-
123 sizeof(struct ethhdr
) -
124 sizeof(struct iphdr
) -
125 sizeof(struct tcphdr
),
130 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm
*mvm
)
134 memset(mvm
->phy_ctxts
, 0, sizeof(mvm
->phy_ctxts
));
135 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
136 mvm
->phy_ctxts
[i
].id
= i
;
137 mvm
->phy_ctxts
[i
].ref
= 0;
141 int iwl_mvm_mac_setup_register(struct iwl_mvm
*mvm
)
143 struct ieee80211_hw
*hw
= mvm
->hw
;
146 /* Tell mac80211 our characteristics */
147 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
148 IEEE80211_HW_SPECTRUM_MGMT
|
149 IEEE80211_HW_REPORTS_TX_ACK_STATUS
|
150 IEEE80211_HW_QUEUE_CONTROL
|
151 IEEE80211_HW_WANT_MONITOR_VIF
|
152 IEEE80211_HW_SUPPORTS_PS
|
153 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
|
154 IEEE80211_HW_AMPDU_AGGREGATION
|
155 IEEE80211_HW_TIMING_BEACON_ONLY
|
156 IEEE80211_HW_CONNECTION_MONITOR
|
157 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
158 IEEE80211_HW_SUPPORTS_STATIC_SMPS
|
159 IEEE80211_HW_SUPPORTS_UAPSD
;
161 hw
->queues
= IWL_MVM_FIRST_AGG_QUEUE
;
162 hw
->offchannel_tx_hw_queue
= IWL_MVM_OFFCHANNEL_QUEUE
;
163 hw
->rate_control_algorithm
= "iwl-mvm-rs";
166 * Enable 11w if advertised by firmware and software crypto
167 * is not enabled (as the firmware will interpret some mgmt
168 * packets, so enabling it with software crypto isn't safe)
170 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_MFP
&&
171 !iwlwifi_mod_params
.sw_crypto
)
172 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
174 hw
->sta_data_size
= sizeof(struct iwl_mvm_sta
);
175 hw
->vif_data_size
= sizeof(struct iwl_mvm_vif
);
176 hw
->chanctx_data_size
= sizeof(u16
);
178 hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
179 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
180 BIT(NL80211_IFTYPE_AP
) |
181 BIT(NL80211_IFTYPE_P2P_GO
) |
182 BIT(NL80211_IFTYPE_P2P_DEVICE
);
184 hw
->wiphy
->flags
|= WIPHY_FLAG_CUSTOM_REGULATORY
|
185 WIPHY_FLAG_DISABLE_BEACON_HINTS
|
188 hw
->wiphy
->iface_combinations
= iwl_mvm_iface_combinations
;
189 hw
->wiphy
->n_iface_combinations
=
190 ARRAY_SIZE(iwl_mvm_iface_combinations
);
192 hw
->wiphy
->max_remain_on_channel_duration
= 10000;
193 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
194 hw
->uapsd_queues
= IWL_UAPSD_AC_INFO
;
195 hw
->uapsd_max_sp_len
= IWL_UAPSD_MAX_SP
;
197 /* Extract MAC address */
198 memcpy(mvm
->addresses
[0].addr
, mvm
->nvm_data
->hw_addr
, ETH_ALEN
);
199 hw
->wiphy
->addresses
= mvm
->addresses
;
200 hw
->wiphy
->n_addresses
= 1;
202 /* Extract additional MAC addresses if available */
203 num_mac
= (mvm
->nvm_data
->n_hw_addrs
> 1) ?
204 min(IWL_MVM_MAX_ADDRESSES
, mvm
->nvm_data
->n_hw_addrs
) : 1;
206 for (i
= 1; i
< num_mac
; i
++) {
207 memcpy(mvm
->addresses
[i
].addr
, mvm
->addresses
[i
-1].addr
,
209 mvm
->addresses
[i
].addr
[5]++;
210 hw
->wiphy
->n_addresses
++;
213 iwl_mvm_reset_phy_ctxts(mvm
);
215 /* we create the 802.11 header and a max-length SSID element */
216 hw
->wiphy
->max_scan_ie_len
=
217 mvm
->fw
->ucode_capa
.max_probe_length
- 24 - 34;
218 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
220 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
221 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
222 &mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
];
223 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
224 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
225 &mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
];
227 hw
->wiphy
->hw_version
= mvm
->trans
->hw_id
;
229 if (iwlmvm_mod_params
.power_scheme
!= IWL_POWER_SCHEME_CAM
)
230 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
232 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
234 hw
->wiphy
->features
|= NL80211_FEATURE_P2P_GO_CTWIN
|
235 NL80211_FEATURE_P2P_GO_OPPPS
;
237 mvm
->rts_threshold
= IEEE80211_MAX_RTS_THRESHOLD
;
239 #ifdef CONFIG_PM_SLEEP
240 if (mvm
->fw
->img
[IWL_UCODE_WOWLAN
].sec
[0].len
&&
241 mvm
->trans
->ops
->d3_suspend
&&
242 mvm
->trans
->ops
->d3_resume
&&
243 device_can_wakeup(mvm
->trans
->dev
)) {
244 mvm
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
245 WIPHY_WOWLAN_DISCONNECT
|
246 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
247 WIPHY_WOWLAN_RFKILL_RELEASE
;
248 if (!iwlwifi_mod_params
.sw_crypto
)
249 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
250 WIPHY_WOWLAN_GTK_REKEY_FAILURE
|
251 WIPHY_WOWLAN_4WAY_HANDSHAKE
;
253 mvm
->wowlan
.n_patterns
= IWL_WOWLAN_MAX_PATTERNS
;
254 mvm
->wowlan
.pattern_min_len
= IWL_WOWLAN_MIN_PATTERN_LEN
;
255 mvm
->wowlan
.pattern_max_len
= IWL_WOWLAN_MAX_PATTERN_LEN
;
256 mvm
->wowlan
.tcp
= &iwl_mvm_wowlan_tcp_support
;
257 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
261 ret
= iwl_mvm_leds_init(mvm
);
265 ret
= ieee80211_register_hw(mvm
->hw
);
267 iwl_mvm_leds_exit(mvm
);
272 static void iwl_mvm_mac_tx(struct ieee80211_hw
*hw
,
273 struct ieee80211_tx_control
*control
,
276 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
278 if (iwl_mvm_is_radio_killed(mvm
)) {
279 IWL_DEBUG_DROP(mvm
, "Dropping - RF/CT KILL\n");
283 if (IEEE80211_SKB_CB(skb
)->hw_queue
== IWL_MVM_OFFCHANNEL_QUEUE
&&
284 !test_bit(IWL_MVM_STATUS_ROC_RUNNING
, &mvm
->status
))
288 if (iwl_mvm_tx_skb(mvm
, skb
, control
->sta
))
293 if (iwl_mvm_tx_skb_non_sta(mvm
, skb
))
297 ieee80211_free_txskb(hw
, skb
);
300 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw
*hw
,
301 struct ieee80211_vif
*vif
,
302 enum ieee80211_ampdu_mlme_action action
,
303 struct ieee80211_sta
*sta
, u16 tid
,
304 u16
*ssn
, u8 buf_size
)
306 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
309 IWL_DEBUG_HT(mvm
, "A-MPDU action on addr %pM tid %d: action %d\n",
310 sta
->addr
, tid
, action
);
312 if (!(mvm
->nvm_data
->sku_cap_11n_enable
))
315 mutex_lock(&mvm
->mutex
);
318 case IEEE80211_AMPDU_RX_START
:
319 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
) {
323 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, *ssn
, true);
325 case IEEE80211_AMPDU_RX_STOP
:
326 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, 0, false);
328 case IEEE80211_AMPDU_TX_START
:
329 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
) {
333 ret
= iwl_mvm_sta_tx_agg_start(mvm
, vif
, sta
, tid
, ssn
);
335 case IEEE80211_AMPDU_TX_STOP_CONT
:
336 ret
= iwl_mvm_sta_tx_agg_stop(mvm
, vif
, sta
, tid
);
338 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
339 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
340 ret
= iwl_mvm_sta_tx_agg_flush(mvm
, vif
, sta
, tid
);
342 case IEEE80211_AMPDU_TX_OPERATIONAL
:
343 ret
= iwl_mvm_sta_tx_agg_oper(mvm
, vif
, sta
, tid
, buf_size
);
350 mutex_unlock(&mvm
->mutex
);
355 static void iwl_mvm_cleanup_iterator(void *data
, u8
*mac
,
356 struct ieee80211_vif
*vif
)
358 struct iwl_mvm
*mvm
= data
;
359 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
361 mvmvif
->uploaded
= false;
362 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
364 /* does this make sense at all? */
367 spin_lock_bh(&mvm
->time_event_lock
);
368 iwl_mvm_te_clear_data(mvm
, &mvmvif
->time_event_data
);
369 spin_unlock_bh(&mvm
->time_event_lock
);
371 mvmvif
->phy_ctxt
= NULL
;
374 static void iwl_mvm_restart_cleanup(struct iwl_mvm
*mvm
)
376 iwl_trans_stop_device(mvm
->trans
);
377 iwl_trans_stop_hw(mvm
->trans
, false);
379 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
381 /* just in case one was running */
382 ieee80211_remain_on_channel_expired(mvm
->hw
);
384 ieee80211_iterate_active_interfaces_atomic(
385 mvm
->hw
, IEEE80211_IFACE_ITER_RESUME_ALL
,
386 iwl_mvm_cleanup_iterator
, mvm
);
388 mvm
->p2p_device_vif
= NULL
;
390 iwl_mvm_reset_phy_ctxts(mvm
);
391 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
392 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
394 ieee80211_wake_queues(mvm
->hw
);
397 mvm
->rx_ba_sessions
= 0;
400 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
402 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
405 mutex_lock(&mvm
->mutex
);
407 /* Clean up some internal and mac80211 state on restart */
408 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
409 iwl_mvm_restart_cleanup(mvm
);
411 ret
= iwl_mvm_up(mvm
);
412 mutex_unlock(&mvm
->mutex
);
417 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw
*hw
)
419 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
422 mutex_lock(&mvm
->mutex
);
424 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
425 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
427 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
430 mutex_unlock(&mvm
->mutex
);
433 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
435 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
437 flush_work(&mvm
->async_handlers_wk
);
439 mutex_lock(&mvm
->mutex
);
440 /* async_handlers_wk is now blocked */
443 * The work item could be running or queued if the
444 * ROC time event stops just as we get here.
446 cancel_work_sync(&mvm
->roc_done_wk
);
448 iwl_trans_stop_device(mvm
->trans
);
449 iwl_trans_stop_hw(mvm
->trans
, false);
451 iwl_mvm_async_handlers_purge(mvm
);
452 /* async_handlers_list is empty and will stay empty: HW is stopped */
454 /* the fw is stopped, the aux sta is dead: clean up driver state */
455 iwl_mvm_dealloc_int_sta(mvm
, &mvm
->aux_sta
);
457 mutex_unlock(&mvm
->mutex
);
460 * The worker might have been waiting for the mutex, let it run and
461 * discover that its list is now empty.
463 cancel_work_sync(&mvm
->async_handlers_wk
);
466 static void iwl_mvm_pm_disable_iterator(void *data
, u8
*mac
,
467 struct ieee80211_vif
*vif
)
469 struct iwl_mvm
*mvm
= data
;
472 ret
= iwl_mvm_power_disable(mvm
, vif
);
474 IWL_ERR(mvm
, "failed to disable power management\n");
477 static void iwl_mvm_power_update_iterator(void *data
, u8
*mac
,
478 struct ieee80211_vif
*vif
)
480 struct iwl_mvm
*mvm
= data
;
482 iwl_mvm_power_update_mode(mvm
, vif
);
485 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
489 lockdep_assert_held(&mvm
->mutex
);
491 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
492 if (!mvm
->phy_ctxts
[i
].ref
)
493 return &mvm
->phy_ctxts
[i
];
495 IWL_ERR(mvm
, "No available PHY context\n");
499 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
500 struct ieee80211_vif
*vif
)
502 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
503 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
507 * Not much to do here. The stack will not allow interface
508 * types or combinations that we didn't advertise, so we
509 * don't really have to check the types.
512 mutex_lock(&mvm
->mutex
);
514 /* Allocate resources for the MAC context, and add it to the fw */
515 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
520 * TODO: remove this temporary code.
521 * Currently MVM FW supports power management only on single MAC.
522 * If new interface added, disable PM on existing interface.
523 * P2P device is a special case, since it is handled by FW similary to
524 * scan. If P2P deviced is added, PM remains enabled on existing
526 * Note: the method below does not count the new interface being added
529 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
531 if (mvm
->vif_count
> 1) {
532 IWL_DEBUG_MAC80211(mvm
,
533 "Disable power on existing interfaces\n");
534 ieee80211_iterate_active_interfaces_atomic(
536 IEEE80211_IFACE_ITER_NORMAL
,
537 iwl_mvm_pm_disable_iterator
, mvm
);
541 * The AP binding flow can be done only after the beacon
542 * template is configured (which happens only in the mac80211
543 * start_ap() flow), and adding the broadcast station can happen
544 * only after the binding.
545 * In addition, since modifying the MAC before adding a bcast
546 * station is not allowed by the FW, delay the adding of MAC context to
547 * the point where we can also add the bcast station.
548 * In short: there's not much we can do at this point, other than
549 * allocating resources :)
551 if (vif
->type
== NL80211_IFTYPE_AP
) {
552 u32 qmask
= iwl_mvm_mac_get_queues_mask(mvm
, vif
);
553 ret
= iwl_mvm_allocate_int_sta(mvm
, &mvmvif
->bcast_sta
,
556 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
560 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
564 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
569 * Update power state on the new interface. Admittedly, based on
570 * mac80211 logics this power update will disable power management
572 iwl_mvm_power_update_mode(mvm
, vif
);
574 /* beacon filtering */
575 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
);
579 if (!mvm
->bf_allowed_vif
&&
580 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
&&
581 mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BF_UPDATED
){
582 mvm
->bf_allowed_vif
= mvmvif
;
583 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
584 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
588 * P2P_DEVICE interface does not have a channel context assigned to it,
589 * so a dedicated PHY context is allocated to it and the corresponding
590 * MAC context is bound to it at this stage.
592 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
594 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
595 if (!mvmvif
->phy_ctxt
) {
600 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
601 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
605 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
, &mvmvif
->bcast_sta
);
609 /* Save a pointer to p2p device vif, so it can later be used to
610 * update the p2p device MAC when a GO is started/stopped */
611 mvm
->p2p_device_vif
= vif
;
614 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
618 iwl_mvm_binding_remove_vif(mvm
, vif
);
620 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
622 if (mvm
->bf_allowed_vif
== mvmvif
) {
623 mvm
->bf_allowed_vif
= NULL
;
624 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
625 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
628 mvmvif
->phy_ctxt
= NULL
;
629 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
631 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
633 ieee80211_iterate_active_interfaces(
634 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
635 iwl_mvm_power_update_iterator
, mvm
);
636 iwl_mvm_mac_ctxt_release(mvm
, vif
);
638 mutex_unlock(&mvm
->mutex
);
643 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
644 struct ieee80211_vif
*vif
)
648 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++)
649 if (vif
->hw_queue
[ac
] != IEEE80211_INVAL_HW_QUEUE
)
650 tfd_msk
|= BIT(vif
->hw_queue
[ac
]);
652 if (vif
->cab_queue
!= IEEE80211_INVAL_HW_QUEUE
)
653 tfd_msk
|= BIT(vif
->cab_queue
);
656 mutex_lock(&mvm
->mutex
);
657 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, true);
658 mutex_unlock(&mvm
->mutex
);
661 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
663 * Flush the ROC worker which will flush the OFFCHANNEL queue.
664 * We assume here that all the packets sent to the OFFCHANNEL
665 * queue are sent in ROC session.
667 flush_work(&mvm
->roc_done_wk
);
670 * By now, all the AC queues are empty. The AGG queues are
671 * empty too. We already got all the Tx responses for all the
672 * packets in the queues. The drain work can have been
673 * triggered. Flush it.
675 flush_work(&mvm
->sta_drained_wk
);
679 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
680 struct ieee80211_vif
*vif
)
682 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
683 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
685 iwl_mvm_prepare_mac_removal(mvm
, vif
);
687 mutex_lock(&mvm
->mutex
);
689 if (mvm
->bf_allowed_vif
== mvmvif
) {
690 mvm
->bf_allowed_vif
= NULL
;
691 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
692 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
695 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
698 * For AP/GO interface, the tear down of the resources allocated to the
699 * interface is be handled as part of the stop_ap flow.
701 if (vif
->type
== NL80211_IFTYPE_AP
) {
702 iwl_mvm_dealloc_int_sta(mvm
, &mvmvif
->bcast_sta
);
706 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
707 mvm
->p2p_device_vif
= NULL
;
708 iwl_mvm_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
709 iwl_mvm_binding_remove_vif(mvm
, vif
);
710 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
711 mvmvif
->phy_ctxt
= NULL
;
715 * TODO: remove this temporary code.
716 * Currently MVM FW supports power management only on single MAC.
717 * Check if only one additional interface remains after removing
718 * current one. Update power mode on the remaining interface.
720 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
722 IWL_DEBUG_MAC80211(mvm
, "Currently %d interfaces active\n",
724 if (mvm
->vif_count
== 1) {
725 ieee80211_iterate_active_interfaces(
726 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
727 iwl_mvm_power_update_iterator
, mvm
);
730 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
733 iwl_mvm_mac_ctxt_release(mvm
, vif
);
734 mutex_unlock(&mvm
->mutex
);
737 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
740 /* FW is in charge of regulatory enforcement */
741 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd
= {
742 .mac_context_id
= iwl_mvm_vif_from_mac80211(vif
)->id
,
743 .pwr_restriction
= cpu_to_le16(tx_power
),
746 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, CMD_SYNC
,
747 sizeof(reduce_txpwr_cmd
),
751 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
756 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
757 unsigned int changed_flags
,
758 unsigned int *total_flags
,
764 static int iwl_mvm_configure_mcast_filter(struct iwl_mvm
*mvm
,
765 struct ieee80211_vif
*vif
)
767 struct iwl_mcast_filter_cmd mcast_filter_cmd
= {
771 memcpy(mcast_filter_cmd
.bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
773 return iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_SYNC
,
774 sizeof(mcast_filter_cmd
),
778 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
779 struct ieee80211_vif
*vif
,
780 struct ieee80211_bss_conf
*bss_conf
,
783 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
786 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
);
788 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
790 if (changes
& BSS_CHANGED_ASSOC
) {
791 if (bss_conf
->assoc
) {
792 /* add quota for this interface */
793 ret
= iwl_mvm_update_quotas(mvm
, vif
);
795 IWL_ERR(mvm
, "failed to update quotas\n");
798 iwl_mvm_configure_mcast_filter(mvm
, vif
);
799 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_STATION_COUNT
) {
800 /* remove AP station now that the MAC is unassoc */
801 ret
= iwl_mvm_rm_sta_id(mvm
, vif
, mvmvif
->ap_sta_id
);
803 IWL_ERR(mvm
, "failed to remove AP station\n");
804 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
805 /* remove quota for this interface */
806 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
808 IWL_ERR(mvm
, "failed to update quotas\n");
811 /* reset rssi values */
812 mvmvif
->bf_data
.ave_beacon_signal
= 0;
814 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_UAPSD
)) {
815 /* Workaround for FW bug, otherwise FW disables device
816 * power save upon disassociation
818 ret
= iwl_mvm_power_update_mode(mvm
, vif
);
820 IWL_ERR(mvm
, "failed to update power mode\n");
822 iwl_mvm_bt_coex_vif_assoc(mvm
, vif
);
823 } else if (changes
& BSS_CHANGED_BEACON_INFO
) {
825 * We received a beacon _after_ association so
826 * remove the session protection.
828 iwl_mvm_remove_time_event(mvm
, mvmvif
,
829 &mvmvif
->time_event_data
);
830 } else if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_QOS
)) {
831 ret
= iwl_mvm_power_update_mode(mvm
, vif
);
833 IWL_ERR(mvm
, "failed to update power mode\n");
835 if (changes
& BSS_CHANGED_TXPOWER
) {
836 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
838 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
841 if (changes
& BSS_CHANGED_CQM
) {
842 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed");
843 /* reset cqm events tracking */
844 mvmvif
->bf_data
.last_cqm_event
= 0;
845 ret
= iwl_mvm_update_beacon_filter(mvm
, vif
);
847 IWL_ERR(mvm
, "failed to update CQM thresholds\n");
851 static int iwl_mvm_start_ap(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
)
853 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
854 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
857 mutex_lock(&mvm
->mutex
);
859 /* Send the beacon template */
860 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
864 /* Add the mac context */
865 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
869 /* Perform the binding */
870 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
874 mvmvif
->ap_active
= true;
876 /* Send the bcast station. At this stage the TBTT and DTIM time events
877 * are added and applied to the scheduler */
878 ret
= iwl_mvm_send_bcast_sta(mvm
, vif
, &mvmvif
->bcast_sta
);
882 ret
= iwl_mvm_update_quotas(mvm
, vif
);
886 /* Need to update the P2P Device MAC */
887 if (vif
->p2p
&& mvm
->p2p_device_vif
)
888 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
);
890 mutex_unlock(&mvm
->mutex
);
894 iwl_mvm_send_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
896 iwl_mvm_binding_remove_vif(mvm
, vif
);
898 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
900 mutex_unlock(&mvm
->mutex
);
904 static void iwl_mvm_stop_ap(struct ieee80211_hw
*hw
, struct ieee80211_vif
*vif
)
906 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
907 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
909 iwl_mvm_prepare_mac_removal(mvm
, vif
);
911 mutex_lock(&mvm
->mutex
);
913 mvmvif
->ap_active
= false;
915 /* Need to update the P2P Device MAC */
916 if (vif
->p2p
&& mvm
->p2p_device_vif
)
917 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
);
919 iwl_mvm_update_quotas(mvm
, NULL
);
920 iwl_mvm_send_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
921 iwl_mvm_binding_remove_vif(mvm
, vif
);
922 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
924 mutex_unlock(&mvm
->mutex
);
927 static void iwl_mvm_bss_info_changed_ap(struct iwl_mvm
*mvm
,
928 struct ieee80211_vif
*vif
,
929 struct ieee80211_bss_conf
*bss_conf
,
932 /* Need to send a new beacon template to the FW */
933 if (changes
& BSS_CHANGED_BEACON
) {
934 if (iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
935 IWL_WARN(mvm
, "Failed updating beacon data\n");
939 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
940 struct ieee80211_vif
*vif
,
941 struct ieee80211_bss_conf
*bss_conf
,
944 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
946 mutex_lock(&mvm
->mutex
);
949 case NL80211_IFTYPE_STATION
:
950 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
952 case NL80211_IFTYPE_AP
:
953 iwl_mvm_bss_info_changed_ap(mvm
, vif
, bss_conf
, changes
);
956 /* shouldn't happen */
960 mutex_unlock(&mvm
->mutex
);
963 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
964 struct ieee80211_vif
*vif
,
965 struct cfg80211_scan_request
*req
)
967 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
970 if (req
->n_channels
== 0 || req
->n_channels
> MAX_NUM_SCAN_CHANNELS
)
973 mutex_lock(&mvm
->mutex
);
975 if (mvm
->scan_status
== IWL_MVM_SCAN_NONE
)
976 ret
= iwl_mvm_scan_request(mvm
, vif
, req
);
980 mutex_unlock(&mvm
->mutex
);
985 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
986 struct ieee80211_vif
*vif
)
988 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
990 mutex_lock(&mvm
->mutex
);
992 iwl_mvm_cancel_scan(mvm
);
994 mutex_unlock(&mvm
->mutex
);
998 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
999 struct ieee80211_sta
*sta
, u16 tid
,
1001 enum ieee80211_frame_release_type reason
,
1004 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1006 /* TODO: how do we tell the fw to send frames for a specific TID */
1009 * The fw will send EOSP notification when the last frame will be
1012 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
);
1015 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
1016 struct ieee80211_vif
*vif
,
1017 enum sta_notify_cmd cmd
,
1018 struct ieee80211_sta
*sta
)
1020 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1021 struct iwl_mvm_sta
*mvmsta
= (void *)sta
->drv_priv
;
1024 case STA_NOTIFY_SLEEP
:
1025 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
1026 ieee80211_sta_block_awake(hw
, sta
, true);
1028 * The fw updates the STA to be asleep. Tx packets on the Tx
1029 * queues to this station will not be transmitted. The fw will
1030 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1033 case STA_NOTIFY_AWAKE
:
1034 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
))
1036 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
1043 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
1044 struct ieee80211_vif
*vif
,
1045 struct ieee80211_sta
*sta
,
1046 enum ieee80211_sta_state old_state
,
1047 enum ieee80211_sta_state new_state
)
1049 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1050 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1053 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
1054 sta
->addr
, old_state
, new_state
);
1056 /* this would be a mac80211 bug ... but don't crash */
1057 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
1060 /* if a STA is being removed, reuse its ID */
1061 flush_work(&mvm
->sta_drained_wk
);
1063 mutex_lock(&mvm
->mutex
);
1064 if (old_state
== IEEE80211_STA_NOTEXIST
&&
1065 new_state
== IEEE80211_STA_NONE
) {
1067 * Firmware bug - it'll crash if the beacon interval is less
1068 * than 16. We can't avoid connecting at all, so refuse the
1069 * station state change, this will cause mac80211 to abandon
1070 * attempts to connect to this AP, and eventually wpa_s will
1071 * blacklist the AP...
1073 if (vif
->type
== NL80211_IFTYPE_STATION
&&
1074 vif
->bss_conf
.beacon_int
< 16) {
1076 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
1077 sta
->addr
, vif
->bss_conf
.beacon_int
);
1081 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
1082 } else if (old_state
== IEEE80211_STA_NONE
&&
1083 new_state
== IEEE80211_STA_AUTH
) {
1085 } else if (old_state
== IEEE80211_STA_AUTH
&&
1086 new_state
== IEEE80211_STA_ASSOC
) {
1087 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
1089 iwl_mvm_rs_rate_init(mvm
, sta
,
1090 mvmvif
->phy_ctxt
->channel
->band
);
1091 } else if (old_state
== IEEE80211_STA_ASSOC
&&
1092 new_state
== IEEE80211_STA_AUTHORIZED
) {
1093 /* enable beacon filtering */
1094 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
));
1096 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
1097 new_state
== IEEE80211_STA_ASSOC
) {
1098 /* disable beacon filtering */
1099 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
));
1101 } else if (old_state
== IEEE80211_STA_ASSOC
&&
1102 new_state
== IEEE80211_STA_AUTH
) {
1104 } else if (old_state
== IEEE80211_STA_AUTH
&&
1105 new_state
== IEEE80211_STA_NONE
) {
1107 } else if (old_state
== IEEE80211_STA_NONE
&&
1108 new_state
== IEEE80211_STA_NOTEXIST
) {
1109 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
1114 mutex_unlock(&mvm
->mutex
);
1119 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
1121 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1123 mvm
->rts_threshold
= value
;
1128 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
1129 struct ieee80211_vif
*vif
, u16 ac
,
1130 const struct ieee80211_tx_queue_params
*params
)
1132 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1133 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1135 mvmvif
->queue_params
[ac
] = *params
;
1138 * No need to update right away, we'll get BSS_CHANGED_QOS
1139 * The exception is P2P_DEVICE interface which needs immediate update.
1141 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1144 mutex_lock(&mvm
->mutex
);
1145 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
);
1146 mutex_unlock(&mvm
->mutex
);
1152 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
1153 struct ieee80211_vif
*vif
)
1155 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1156 u32 duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
,
1157 200 + vif
->bss_conf
.beacon_int
);
1158 u32 min_duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
,
1159 100 + vif
->bss_conf
.beacon_int
);
1161 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
1164 mutex_lock(&mvm
->mutex
);
1165 /* Try really hard to protect the session and hear a beacon */
1166 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
);
1167 mutex_unlock(&mvm
->mutex
);
1170 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
1171 enum set_key_cmd cmd
,
1172 struct ieee80211_vif
*vif
,
1173 struct ieee80211_sta
*sta
,
1174 struct ieee80211_key_conf
*key
)
1176 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1179 if (iwlwifi_mod_params
.sw_crypto
) {
1180 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
1184 switch (key
->cipher
) {
1185 case WLAN_CIPHER_SUITE_TKIP
:
1186 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
1188 case WLAN_CIPHER_SUITE_CCMP
:
1189 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
1191 case WLAN_CIPHER_SUITE_AES_CMAC
:
1192 WARN_ON_ONCE(!(hw
->flags
& IEEE80211_HW_MFP_CAPABLE
));
1194 case WLAN_CIPHER_SUITE_WEP40
:
1195 case WLAN_CIPHER_SUITE_WEP104
:
1197 * Support for TX only, at least for now, so accept
1198 * the key and do nothing else. Then mac80211 will
1199 * pass it for TX but we don't have to use it for RX.
1206 mutex_lock(&mvm
->mutex
);
1210 if (vif
->type
== NL80211_IFTYPE_AP
&& !sta
) {
1211 /* GTK on AP interface is a TX-only key, return 0 */
1213 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
1217 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
1218 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, false);
1220 IWL_WARN(mvm
, "set key failed\n");
1222 * can't add key for RX, but we don't need it
1223 * in the device for TX so still return 0
1225 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
1231 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
1236 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
1237 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
1243 mutex_unlock(&mvm
->mutex
);
1247 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
1248 struct ieee80211_vif
*vif
,
1249 struct ieee80211_key_conf
*keyconf
,
1250 struct ieee80211_sta
*sta
,
1251 u32 iv32
, u16
*phase1key
)
1253 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1255 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
1259 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
1260 struct ieee80211_vif
*vif
,
1261 struct ieee80211_channel
*channel
,
1263 enum ieee80211_roc_type type
)
1265 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1266 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1267 struct cfg80211_chan_def chandef
;
1268 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
1271 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
1274 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
) {
1275 IWL_ERR(mvm
, "vif isn't a P2P_DEVICE: %d\n", vif
->type
);
1279 mutex_lock(&mvm
->mutex
);
1281 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
1282 phy_ctxt
= &mvm
->phy_ctxts
[i
];
1283 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
1286 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
1288 * Unbind the P2P_DEVICE from the current PHY context,
1289 * and if the PHY context is not used remove it.
1291 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
1292 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
1295 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1297 /* Bind the P2P_DEVICE to the current PHY Context */
1298 mvmvif
->phy_ctxt
= phy_ctxt
;
1300 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1301 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
1304 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1305 goto schedule_time_event
;
1309 /* Need to update the PHY context only if the ROC channel changed */
1310 if (channel
== mvmvif
->phy_ctxt
->channel
)
1311 goto schedule_time_event
;
1313 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
1316 * Change the PHY context configuration as it is currently referenced
1317 * only by the P2P Device MAC
1319 if (mvmvif
->phy_ctxt
->ref
== 1) {
1320 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
1326 * The PHY context is shared with other MACs. Need to remove the
1327 * P2P Device from the binding, allocate an new PHY context and
1328 * create a new binding
1330 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1336 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
1339 IWL_ERR(mvm
, "Failed to change PHY context\n");
1343 /* Unbind the P2P_DEVICE from the current PHY context */
1344 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
1345 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
1348 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1350 /* Bind the P2P_DEVICE to the new allocated PHY context */
1351 mvmvif
->phy_ctxt
= phy_ctxt
;
1353 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1354 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
1357 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1360 schedule_time_event
:
1361 /* Schedule the time events */
1362 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
1365 mutex_unlock(&mvm
->mutex
);
1366 IWL_DEBUG_MAC80211(mvm
, "leave\n");
1370 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
1372 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1374 IWL_DEBUG_MAC80211(mvm
, "enter\n");
1376 mutex_lock(&mvm
->mutex
);
1377 iwl_mvm_stop_p2p_roc(mvm
);
1378 mutex_unlock(&mvm
->mutex
);
1380 IWL_DEBUG_MAC80211(mvm
, "leave\n");
1384 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
1385 struct ieee80211_chanctx_conf
*ctx
)
1387 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1388 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
1389 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
1392 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
1394 mutex_lock(&mvm
->mutex
);
1395 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1401 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->def
,
1402 ctx
->rx_chains_static
,
1403 ctx
->rx_chains_dynamic
);
1405 IWL_ERR(mvm
, "Failed to add PHY context\n");
1409 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
1410 *phy_ctxt_id
= phy_ctxt
->id
;
1412 mutex_unlock(&mvm
->mutex
);
1416 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
1417 struct ieee80211_chanctx_conf
*ctx
)
1419 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1420 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
1421 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
1423 mutex_lock(&mvm
->mutex
);
1424 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
1425 mutex_unlock(&mvm
->mutex
);
1428 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
1429 struct ieee80211_chanctx_conf
*ctx
,
1432 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1433 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
1434 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
1436 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
1437 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
1438 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
1439 IEEE80211_CHANCTX_CHANGE_RADAR
)),
1440 "Cannot change PHY. Ref=%d, changed=0x%X\n",
1441 phy_ctxt
->ref
, changed
))
1444 mutex_lock(&mvm
->mutex
);
1445 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->def
,
1446 ctx
->rx_chains_static
,
1447 ctx
->rx_chains_dynamic
);
1448 mutex_unlock(&mvm
->mutex
);
1451 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
1452 struct ieee80211_vif
*vif
,
1453 struct ieee80211_chanctx_conf
*ctx
)
1455 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1456 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
1457 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
1458 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1461 mutex_lock(&mvm
->mutex
);
1463 mvmvif
->phy_ctxt
= phy_ctxt
;
1465 switch (vif
->type
) {
1466 case NL80211_IFTYPE_AP
:
1468 * The AP binding flow is handled as part of the start_ap flow
1469 * (in bss_info_changed).
1473 case NL80211_IFTYPE_STATION
:
1474 case NL80211_IFTYPE_ADHOC
:
1475 case NL80211_IFTYPE_MONITOR
:
1482 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1487 * Setting the quota at this stage is only required for monitor
1488 * interfaces. For the other types, the bss_info changed flow
1489 * will handle quota settings.
1491 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
1492 mvmvif
->monitor_active
= true;
1493 ret
= iwl_mvm_update_quotas(mvm
, vif
);
1495 goto out_remove_binding
;
1501 iwl_mvm_binding_remove_vif(mvm
, vif
);
1503 mutex_unlock(&mvm
->mutex
);
1505 mvmvif
->phy_ctxt
= NULL
;
1509 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
1510 struct ieee80211_vif
*vif
,
1511 struct ieee80211_chanctx_conf
*ctx
)
1513 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1514 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1516 mutex_lock(&mvm
->mutex
);
1518 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
1520 if (vif
->type
== NL80211_IFTYPE_AP
)
1523 switch (vif
->type
) {
1524 case NL80211_IFTYPE_MONITOR
:
1525 mvmvif
->monitor_active
= false;
1526 iwl_mvm_update_quotas(mvm
, NULL
);
1532 iwl_mvm_binding_remove_vif(mvm
, vif
);
1534 mvmvif
->phy_ctxt
= NULL
;
1535 mutex_unlock(&mvm
->mutex
);
1538 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
1539 struct ieee80211_sta
*sta
,
1542 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1543 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
1545 if (!mvm_sta
|| !mvm_sta
->vif
) {
1546 IWL_ERR(mvm
, "Station is not associated to a vif\n");
1550 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
1553 static void iwl_mvm_mac_rssi_callback(struct ieee80211_hw
*hw
,
1554 struct ieee80211_vif
*vif
,
1555 enum ieee80211_rssi_event rssi_event
)
1557 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1559 iwl_mvm_bt_rssi_event(mvm
, vif
, rssi_event
);
1562 struct ieee80211_ops iwl_mvm_hw_ops
= {
1563 .tx
= iwl_mvm_mac_tx
,
1564 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
1565 .start
= iwl_mvm_mac_start
,
1566 .restart_complete
= iwl_mvm_mac_restart_complete
,
1567 .stop
= iwl_mvm_mac_stop
,
1568 .add_interface
= iwl_mvm_mac_add_interface
,
1569 .remove_interface
= iwl_mvm_mac_remove_interface
,
1570 .config
= iwl_mvm_mac_config
,
1571 .configure_filter
= iwl_mvm_configure_filter
,
1572 .bss_info_changed
= iwl_mvm_bss_info_changed
,
1573 .hw_scan
= iwl_mvm_mac_hw_scan
,
1574 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
1575 .sta_state
= iwl_mvm_mac_sta_state
,
1576 .sta_notify
= iwl_mvm_mac_sta_notify
,
1577 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
1578 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
1579 .conf_tx
= iwl_mvm_mac_conf_tx
,
1580 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
1581 .set_key
= iwl_mvm_mac_set_key
,
1582 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
1583 .remain_on_channel
= iwl_mvm_roc
,
1584 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
1585 .rssi_callback
= iwl_mvm_mac_rssi_callback
,
1587 .add_chanctx
= iwl_mvm_add_chanctx
,
1588 .remove_chanctx
= iwl_mvm_remove_chanctx
,
1589 .change_chanctx
= iwl_mvm_change_chanctx
,
1590 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
1591 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
1593 .start_ap
= iwl_mvm_start_ap
,
1594 .stop_ap
= iwl_mvm_stop_ap
,
1596 .set_tim
= iwl_mvm_set_tim
,
1598 #ifdef CONFIG_PM_SLEEP
1600 .suspend
= iwl_mvm_suspend
,
1601 .resume
= iwl_mvm_resume
,
1602 .set_wakeup
= iwl_mvm_set_wakeup
,
1603 .set_rekey_data
= iwl_mvm_set_rekey_data
,
1604 #if IS_ENABLED(CONFIG_IPV6)
1605 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
1607 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,