1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of version 2 of the GNU General Public License as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
24 * The full GNU General Public License is included in this distribution
25 * in the file called COPYING.
27 * Contact Information:
28 * Intel Linux Wireless <ilw@linux.intel.com>
29 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
33 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions
40 * * Redistributions of source code must retain the above copyright
41 * notice, this list of conditions and the following disclaimer.
42 * * Redistributions in binary form must reproduce the above copyright
43 * notice, this list of conditions and the following disclaimer in
44 * the documentation and/or other materials provided with the
46 * * Neither the name Intel Corporation nor the names of its
47 * contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
51 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
52 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
53 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
54 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
55 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
56 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
57 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
58 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
59 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
60 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 *****************************************************************************/
63 #include <linux/kernel.h>
64 #include <linux/slab.h>
65 #include <linux/skbuff.h>
66 #include <linux/netdevice.h>
67 #include <linux/etherdevice.h>
69 #include <linux/if_arp.h>
70 #include <net/mac80211.h>
71 #include <net/ieee80211_radiotap.h>
74 #include "iwl-op-mode.h"
78 #include "time-event.h"
79 #include "iwl-eeprom-parse.h"
80 #include "fw-api-scan.h"
81 #include "iwl-phy-db.h"
84 static const struct ieee80211_iface_limit iwl_mvm_limits
[] = {
87 .types
= BIT(NL80211_IFTYPE_STATION
),
91 .types
= BIT(NL80211_IFTYPE_AP
) |
92 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
93 BIT(NL80211_IFTYPE_P2P_GO
),
97 .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
),
101 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations
[] = {
103 .num_different_channels
= 1,
105 .limits
= iwl_mvm_limits
,
106 .n_limits
= ARRAY_SIZE(iwl_mvm_limits
),
110 #ifdef CONFIG_PM_SLEEP
111 static const struct nl80211_wowlan_tcp_data_token_feature
112 iwl_mvm_wowlan_tcp_token_feature
= {
115 .bufsize
= IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS
,
118 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support
= {
119 .tok
= &iwl_mvm_wowlan_tcp_token_feature
,
120 .data_payload_max
= IWL_WOWLAN_TCP_MAX_PACKET_LEN
-
121 sizeof(struct ethhdr
) -
122 sizeof(struct iphdr
) -
123 sizeof(struct tcphdr
),
124 .data_interval_max
= 65535, /* __le16 in API */
125 .wake_payload_max
= IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN
-
126 sizeof(struct ethhdr
) -
127 sizeof(struct iphdr
) -
128 sizeof(struct tcphdr
),
133 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
135 * Use the reserved field to indicate magic values.
136 * these values will only be used internally by the driver,
137 * and won't make it to the fw (reserved will be 0).
138 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
139 * be the vif's ip address. in case there is not a single
140 * ip address (0, or more than 1), this attribute will
142 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
143 * the LSB bytes of the vif's mac address
146 BC_FILTER_MAGIC_NONE
= 0,
151 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters
[] = {
155 .frame_type
= BCAST_FILTER_FRAME_TYPE_ALL
,
158 /* frame type - arp, hw type - ethernet */
160 BCAST_FILTER_OFFSET_PAYLOAD_START
,
161 .offset
= sizeof(rfc1042_header
),
162 .val
= cpu_to_be32(0x08060001),
163 .mask
= cpu_to_be32(0xffffffff),
168 BCAST_FILTER_OFFSET_PAYLOAD_START
,
169 .offset
= sizeof(rfc1042_header
) + 2 +
170 sizeof(struct arphdr
) +
171 ETH_ALEN
+ sizeof(__be32
) +
173 .mask
= cpu_to_be32(0xffffffff),
174 /* mark it as special field */
175 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_IP
),
180 /* dhcp offer bcast */
182 .frame_type
= BCAST_FILTER_FRAME_TYPE_IPV4
,
185 /* udp dest port - 68 (bootp client)*/
186 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
187 .offset
= offsetof(struct udphdr
, dest
),
188 .val
= cpu_to_be32(0x00440000),
189 .mask
= cpu_to_be32(0xffff0000),
192 /* dhcp - lsb bytes of client hw address */
193 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
195 .mask
= cpu_to_be32(0xffffffff),
196 /* mark it as special field */
197 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_MAC
),
201 /* last filter must be empty */
206 void iwl_mvm_ref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
208 if (!iwl_mvm_is_d0i3_supported(mvm
))
211 IWL_DEBUG_RPM(mvm
, "Take mvm reference - type %d\n", ref_type
);
212 WARN_ON(test_and_set_bit(ref_type
, mvm
->ref_bitmap
));
213 iwl_trans_ref(mvm
->trans
);
216 void iwl_mvm_unref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
218 if (!iwl_mvm_is_d0i3_supported(mvm
))
221 IWL_DEBUG_RPM(mvm
, "Leave mvm reference - type %d\n", ref_type
);
222 WARN_ON(!test_and_clear_bit(ref_type
, mvm
->ref_bitmap
));
223 iwl_trans_unref(mvm
->trans
);
227 iwl_mvm_unref_all_except(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref
)
231 if (!iwl_mvm_is_d0i3_supported(mvm
))
234 for_each_set_bit(i
, mvm
->ref_bitmap
, IWL_MVM_REF_COUNT
) {
238 IWL_DEBUG_RPM(mvm
, "Cleanup: remove mvm ref type %d\n", i
);
239 clear_bit(i
, mvm
->ref_bitmap
);
240 iwl_trans_unref(mvm
->trans
);
244 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm
*mvm
)
248 memset(mvm
->phy_ctxts
, 0, sizeof(mvm
->phy_ctxts
));
249 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
250 mvm
->phy_ctxts
[i
].id
= i
;
251 mvm
->phy_ctxts
[i
].ref
= 0;
255 static int iwl_mvm_max_scan_ie_len(struct iwl_mvm
*mvm
)
257 /* we create the 802.11 header and SSID element */
258 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID
)
259 return mvm
->fw
->ucode_capa
.max_probe_length
- 24 - 2;
260 return mvm
->fw
->ucode_capa
.max_probe_length
- 24 - 34;
263 int iwl_mvm_mac_setup_register(struct iwl_mvm
*mvm
)
265 struct ieee80211_hw
*hw
= mvm
->hw
;
268 /* Tell mac80211 our characteristics */
269 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
270 IEEE80211_HW_SPECTRUM_MGMT
|
271 IEEE80211_HW_REPORTS_TX_ACK_STATUS
|
272 IEEE80211_HW_QUEUE_CONTROL
|
273 IEEE80211_HW_WANT_MONITOR_VIF
|
274 IEEE80211_HW_SUPPORTS_PS
|
275 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
|
276 IEEE80211_HW_AMPDU_AGGREGATION
|
277 IEEE80211_HW_TIMING_BEACON_ONLY
|
278 IEEE80211_HW_CONNECTION_MONITOR
|
279 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
280 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
282 hw
->queues
= mvm
->first_agg_queue
;
283 hw
->offchannel_tx_hw_queue
= IWL_MVM_OFFCHANNEL_QUEUE
;
284 hw
->radiotap_mcs_details
|= IEEE80211_RADIOTAP_MCS_HAVE_FEC
|
285 IEEE80211_RADIOTAP_MCS_HAVE_STBC
;
286 hw
->radiotap_vht_details
|= IEEE80211_RADIOTAP_VHT_KNOWN_STBC
;
287 hw
->rate_control_algorithm
= "iwl-mvm-rs";
290 * Enable 11w if advertised by firmware and software crypto
291 * is not enabled (as the firmware will interpret some mgmt
292 * packets, so enabling it with software crypto isn't safe)
294 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_MFP
&&
295 !iwlwifi_mod_params
.sw_crypto
)
296 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
298 if (0 && mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT
) {
299 hw
->flags
|= IEEE80211_HW_SUPPORTS_UAPSD
;
300 hw
->uapsd_queues
= IWL_UAPSD_AC_INFO
;
301 hw
->uapsd_max_sp_len
= IWL_UAPSD_MAX_SP
;
304 hw
->sta_data_size
= sizeof(struct iwl_mvm_sta
);
305 hw
->vif_data_size
= sizeof(struct iwl_mvm_vif
);
306 hw
->chanctx_data_size
= sizeof(u16
);
308 hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
309 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
310 BIT(NL80211_IFTYPE_AP
) |
311 BIT(NL80211_IFTYPE_P2P_GO
) |
312 BIT(NL80211_IFTYPE_P2P_DEVICE
);
314 /* IBSS has bugs in older versions */
315 if (IWL_UCODE_API(mvm
->fw
->ucode_ver
) >= 8)
316 hw
->wiphy
->interface_modes
|= BIT(NL80211_IFTYPE_ADHOC
);
318 hw
->wiphy
->flags
|= WIPHY_FLAG_IBSS_RSN
;
319 hw
->wiphy
->regulatory_flags
|= REGULATORY_CUSTOM_REG
|
320 REGULATORY_DISABLE_BEACON_HINTS
;
322 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_GO_UAPSD
)
323 hw
->wiphy
->flags
|= WIPHY_FLAG_AP_UAPSD
;
325 hw
->wiphy
->iface_combinations
= iwl_mvm_iface_combinations
;
326 hw
->wiphy
->n_iface_combinations
=
327 ARRAY_SIZE(iwl_mvm_iface_combinations
);
329 hw
->wiphy
->max_remain_on_channel_duration
= 10000;
330 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
332 /* Extract MAC address */
333 memcpy(mvm
->addresses
[0].addr
, mvm
->nvm_data
->hw_addr
, ETH_ALEN
);
334 hw
->wiphy
->addresses
= mvm
->addresses
;
335 hw
->wiphy
->n_addresses
= 1;
337 /* Extract additional MAC addresses if available */
338 num_mac
= (mvm
->nvm_data
->n_hw_addrs
> 1) ?
339 min(IWL_MVM_MAX_ADDRESSES
, mvm
->nvm_data
->n_hw_addrs
) : 1;
341 for (i
= 1; i
< num_mac
; i
++) {
342 memcpy(mvm
->addresses
[i
].addr
, mvm
->addresses
[i
-1].addr
,
344 mvm
->addresses
[i
].addr
[5]++;
345 hw
->wiphy
->n_addresses
++;
348 iwl_mvm_reset_phy_ctxts(mvm
);
350 hw
->wiphy
->max_scan_ie_len
= iwl_mvm_max_scan_ie_len(mvm
);
352 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
354 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
355 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
356 &mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
];
357 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
358 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
359 &mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
];
361 hw
->wiphy
->hw_version
= mvm
->trans
->hw_id
;
363 if (iwlmvm_mod_params
.power_scheme
!= IWL_POWER_SCHEME_CAM
)
364 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
366 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
368 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_SCHED_SCAN
) {
369 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_SCHED_SCAN
;
370 hw
->wiphy
->max_sched_scan_ssids
= PROBE_OPTION_MAX
;
371 hw
->wiphy
->max_match_sets
= IWL_SCAN_MAX_PROFILES
;
372 /* we create the 802.11 header and zero length SSID IE. */
373 hw
->wiphy
->max_sched_scan_ie_len
=
374 SCAN_OFFLOAD_PROBE_REQ_SIZE
- 24 - 2;
377 hw
->wiphy
->features
|= NL80211_FEATURE_P2P_GO_CTWIN
|
378 NL80211_FEATURE_P2P_GO_OPPPS
;
380 mvm
->rts_threshold
= IEEE80211_MAX_RTS_THRESHOLD
;
382 /* currently FW API supports only one optional cipher scheme */
383 if (mvm
->fw
->cs
[0].cipher
) {
384 mvm
->hw
->n_cipher_schemes
= 1;
385 mvm
->hw
->cipher_schemes
= &mvm
->fw
->cs
[0];
388 #ifdef CONFIG_PM_SLEEP
389 if (mvm
->fw
->img
[IWL_UCODE_WOWLAN
].sec
[0].len
&&
390 mvm
->trans
->ops
->d3_suspend
&&
391 mvm
->trans
->ops
->d3_resume
&&
392 device_can_wakeup(mvm
->trans
->dev
)) {
393 mvm
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
394 WIPHY_WOWLAN_DISCONNECT
|
395 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
396 WIPHY_WOWLAN_RFKILL_RELEASE
;
397 if (!iwlwifi_mod_params
.sw_crypto
)
398 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
399 WIPHY_WOWLAN_GTK_REKEY_FAILURE
|
400 WIPHY_WOWLAN_4WAY_HANDSHAKE
;
402 mvm
->wowlan
.n_patterns
= IWL_WOWLAN_MAX_PATTERNS
;
403 mvm
->wowlan
.pattern_min_len
= IWL_WOWLAN_MIN_PATTERN_LEN
;
404 mvm
->wowlan
.pattern_max_len
= IWL_WOWLAN_MAX_PATTERN_LEN
;
405 mvm
->wowlan
.tcp
= &iwl_mvm_wowlan_tcp_support
;
406 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
410 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
411 /* assign default bcast filtering configuration */
412 mvm
->bcast_filters
= iwl_mvm_default_bcast_filters
;
415 ret
= iwl_mvm_leds_init(mvm
);
419 ret
= ieee80211_register_hw(mvm
->hw
);
421 iwl_mvm_leds_exit(mvm
);
426 static bool iwl_mvm_defer_tx(struct iwl_mvm
*mvm
,
427 struct ieee80211_sta
*sta
,
430 struct iwl_mvm_sta
*mvmsta
;
434 * double check the IN_D0I3 flag both before and after
435 * taking the spinlock, in order to prevent taking
436 * the spinlock when not needed.
438 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
)))
441 spin_lock(&mvm
->d0i3_tx_lock
);
443 * testing the flag again ensures the skb dequeue
444 * loop (on d0i3 exit) hasn't run yet.
446 if (!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
))
449 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
450 if (mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
||
451 mvmsta
->sta_id
!= mvm
->d0i3_ap_sta_id
)
454 __skb_queue_tail(&mvm
->d0i3_tx
, skb
);
455 ieee80211_stop_queues(mvm
->hw
);
458 iwl_mvm_ref(mvm
, IWL_MVM_REF_TX
);
459 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX
);
463 spin_unlock(&mvm
->d0i3_tx_lock
);
467 static void iwl_mvm_mac_tx(struct ieee80211_hw
*hw
,
468 struct ieee80211_tx_control
*control
,
471 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
472 struct ieee80211_sta
*sta
= control
->sta
;
473 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
474 struct ieee80211_hdr
*hdr
= (void *)skb
->data
;
476 if (iwl_mvm_is_radio_killed(mvm
)) {
477 IWL_DEBUG_DROP(mvm
, "Dropping - RF/CT KILL\n");
481 if (IEEE80211_SKB_CB(skb
)->hw_queue
== IWL_MVM_OFFCHANNEL_QUEUE
&&
482 !test_bit(IWL_MVM_STATUS_ROC_RUNNING
, &mvm
->status
))
485 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
486 if (unlikely(info
->flags
& IEEE80211_TX_CTL_NO_PS_BUFFER
&&
487 ieee80211_is_mgmt(hdr
->frame_control
) &&
488 !ieee80211_is_deauth(hdr
->frame_control
) &&
489 !ieee80211_is_disassoc(hdr
->frame_control
) &&
490 !ieee80211_is_action(hdr
->frame_control
)))
494 if (iwl_mvm_defer_tx(mvm
, sta
, skb
))
496 if (iwl_mvm_tx_skb(mvm
, skb
, sta
))
501 if (iwl_mvm_tx_skb_non_sta(mvm
, skb
))
505 ieee80211_free_txskb(hw
, skb
);
508 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg
*cfg
)
510 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
)
515 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg
*cfg
)
517 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
)
519 if (iwlwifi_mod_params
.disable_11n
& IWL_ENABLE_HT_TXAGG
)
522 /* enabled by default */
526 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw
*hw
,
527 struct ieee80211_vif
*vif
,
528 enum ieee80211_ampdu_mlme_action action
,
529 struct ieee80211_sta
*sta
, u16 tid
,
530 u16
*ssn
, u8 buf_size
)
532 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
534 bool tx_agg_ref
= false;
536 IWL_DEBUG_HT(mvm
, "A-MPDU action on addr %pM tid %d: action %d\n",
537 sta
->addr
, tid
, action
);
539 if (!(mvm
->nvm_data
->sku_cap_11n_enable
))
542 /* return from D0i3 before starting a new Tx aggregation */
543 if (action
== IEEE80211_AMPDU_TX_START
) {
544 iwl_mvm_ref(mvm
, IWL_MVM_REF_TX_AGG
);
548 * wait synchronously until D0i3 exit to get the correct
549 * sequence number for the tid
551 if (!wait_event_timeout(mvm
->d0i3_exit_waitq
,
552 !test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
), HZ
)) {
554 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX_AGG
);
559 mutex_lock(&mvm
->mutex
);
562 case IEEE80211_AMPDU_RX_START
:
563 if (!iwl_enable_rx_ampdu(mvm
->cfg
)) {
567 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, *ssn
, true);
569 case IEEE80211_AMPDU_RX_STOP
:
570 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, 0, false);
572 case IEEE80211_AMPDU_TX_START
:
573 if (!iwl_enable_tx_ampdu(mvm
->cfg
)) {
577 ret
= iwl_mvm_sta_tx_agg_start(mvm
, vif
, sta
, tid
, ssn
);
579 case IEEE80211_AMPDU_TX_STOP_CONT
:
580 ret
= iwl_mvm_sta_tx_agg_stop(mvm
, vif
, sta
, tid
);
582 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
583 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
584 ret
= iwl_mvm_sta_tx_agg_flush(mvm
, vif
, sta
, tid
);
586 case IEEE80211_AMPDU_TX_OPERATIONAL
:
587 ret
= iwl_mvm_sta_tx_agg_oper(mvm
, vif
, sta
, tid
, buf_size
);
594 mutex_unlock(&mvm
->mutex
);
597 * If the tid is marked as started, we won't use it for offloaded
598 * traffic on the next D0i3 entry. It's safe to unref.
601 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX_AGG
);
606 static void iwl_mvm_cleanup_iterator(void *data
, u8
*mac
,
607 struct ieee80211_vif
*vif
)
609 struct iwl_mvm
*mvm
= data
;
610 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
612 mvmvif
->uploaded
= false;
613 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
615 /* does this make sense at all? */
618 spin_lock_bh(&mvm
->time_event_lock
);
619 iwl_mvm_te_clear_data(mvm
, &mvmvif
->time_event_data
);
620 spin_unlock_bh(&mvm
->time_event_lock
);
622 mvmvif
->phy_ctxt
= NULL
;
625 static void iwl_mvm_restart_cleanup(struct iwl_mvm
*mvm
)
627 #ifdef CONFIG_IWLWIFI_DEBUGFS
628 static char *env
[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL
};
630 iwl_mvm_fw_error_dump(mvm
);
632 /* notify the userspace about the error we had */
633 kobject_uevent_env(&mvm
->hw
->wiphy
->dev
.kobj
, KOBJ_CHANGE
, env
);
636 iwl_trans_stop_device(mvm
->trans
);
638 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
640 /* just in case one was running */
641 ieee80211_remain_on_channel_expired(mvm
->hw
);
643 ieee80211_iterate_active_interfaces_atomic(
644 mvm
->hw
, IEEE80211_IFACE_ITER_RESUME_ALL
,
645 iwl_mvm_cleanup_iterator
, mvm
);
647 mvm
->p2p_device_vif
= NULL
;
648 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
650 iwl_mvm_reset_phy_ctxts(mvm
);
651 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
652 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
654 ieee80211_wake_queues(mvm
->hw
);
656 /* cleanup all stale references (scan, roc), but keep the
657 * ucode_down ref until reconfig is complete */
658 iwl_mvm_unref_all_except(mvm
, IWL_MVM_REF_UCODE_DOWN
);
661 mvm
->rx_ba_sessions
= 0;
664 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
666 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
669 mutex_lock(&mvm
->mutex
);
671 /* Clean up some internal and mac80211 state on restart */
672 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
673 iwl_mvm_restart_cleanup(mvm
);
675 ret
= iwl_mvm_up(mvm
);
676 mutex_unlock(&mvm
->mutex
);
681 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw
*hw
)
683 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
686 mutex_lock(&mvm
->mutex
);
688 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
689 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
690 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
692 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
695 /* allow transport/FW low power modes */
696 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
698 mutex_unlock(&mvm
->mutex
);
701 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
703 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
705 flush_work(&mvm
->d0i3_exit_work
);
706 flush_work(&mvm
->async_handlers_wk
);
708 mutex_lock(&mvm
->mutex
);
710 /* disallow low power states when the FW is down */
711 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
713 /* async_handlers_wk is now blocked */
716 * The work item could be running or queued if the
717 * ROC time event stops just as we get here.
719 cancel_work_sync(&mvm
->roc_done_wk
);
721 iwl_trans_stop_device(mvm
->trans
);
723 iwl_mvm_async_handlers_purge(mvm
);
724 /* async_handlers_list is empty and will stay empty: HW is stopped */
726 /* the fw is stopped, the aux sta is dead: clean up driver state */
727 iwl_mvm_dealloc_int_sta(mvm
, &mvm
->aux_sta
);
729 mutex_unlock(&mvm
->mutex
);
732 * The worker might have been waiting for the mutex, let it run and
733 * discover that its list is now empty.
735 cancel_work_sync(&mvm
->async_handlers_wk
);
738 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
742 lockdep_assert_held(&mvm
->mutex
);
744 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
745 if (!mvm
->phy_ctxts
[i
].ref
)
746 return &mvm
->phy_ctxts
[i
];
748 IWL_ERR(mvm
, "No available PHY context\n");
752 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
755 /* FW is in charge of regulatory enforcement */
756 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd
= {
757 .mac_context_id
= iwl_mvm_vif_from_mac80211(vif
)->id
,
758 .pwr_restriction
= cpu_to_le16(tx_power
),
761 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, CMD_SYNC
,
762 sizeof(reduce_txpwr_cmd
),
766 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
767 struct ieee80211_vif
*vif
)
769 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
770 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
774 * Not much to do here. The stack will not allow interface
775 * types or combinations that we didn't advertise, so we
776 * don't really have to check the types.
779 mutex_lock(&mvm
->mutex
);
781 /* Allocate resources for the MAC context, and add it to the fw */
782 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
786 /* Counting number of interfaces is needed for legacy PM */
787 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
791 * The AP binding flow can be done only after the beacon
792 * template is configured (which happens only in the mac80211
793 * start_ap() flow), and adding the broadcast station can happen
794 * only after the binding.
795 * In addition, since modifying the MAC before adding a bcast
796 * station is not allowed by the FW, delay the adding of MAC context to
797 * the point where we can also add the bcast station.
798 * In short: there's not much we can do at this point, other than
799 * allocating resources :)
801 if (vif
->type
== NL80211_IFTYPE_AP
||
802 vif
->type
== NL80211_IFTYPE_ADHOC
) {
803 u32 qmask
= iwl_mvm_mac_get_queues_mask(mvm
, vif
);
804 ret
= iwl_mvm_allocate_int_sta(mvm
, &mvmvif
->bcast_sta
,
806 ieee80211_vif_type_p2p(vif
));
808 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
812 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
816 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
820 ret
= iwl_mvm_power_update_mac(mvm
, vif
);
824 /* beacon filtering */
825 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, CMD_SYNC
);
829 if (!mvm
->bf_allowed_vif
&&
830 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
&&
831 mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BF_UPDATED
){
832 mvm
->bf_allowed_vif
= mvmvif
;
833 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
834 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
838 * P2P_DEVICE interface does not have a channel context assigned to it,
839 * so a dedicated PHY context is allocated to it and the corresponding
840 * MAC context is bound to it at this stage.
842 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
844 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
845 if (!mvmvif
->phy_ctxt
) {
850 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
851 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
855 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
, &mvmvif
->bcast_sta
);
859 /* Save a pointer to p2p device vif, so it can later be used to
860 * update the p2p device MAC when a GO is started/stopped */
861 mvm
->p2p_device_vif
= vif
;
864 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
868 iwl_mvm_binding_remove_vif(mvm
, vif
);
870 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
872 if (mvm
->bf_allowed_vif
== mvmvif
) {
873 mvm
->bf_allowed_vif
= NULL
;
874 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
875 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
878 mvmvif
->phy_ctxt
= NULL
;
879 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
881 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
884 iwl_mvm_mac_ctxt_release(mvm
, vif
);
886 mutex_unlock(&mvm
->mutex
);
891 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
892 struct ieee80211_vif
*vif
)
896 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++)
897 if (vif
->hw_queue
[ac
] != IEEE80211_INVAL_HW_QUEUE
)
898 tfd_msk
|= BIT(vif
->hw_queue
[ac
]);
900 if (vif
->cab_queue
!= IEEE80211_INVAL_HW_QUEUE
)
901 tfd_msk
|= BIT(vif
->cab_queue
);
904 mutex_lock(&mvm
->mutex
);
905 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, true);
906 mutex_unlock(&mvm
->mutex
);
909 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
911 * Flush the ROC worker which will flush the OFFCHANNEL queue.
912 * We assume here that all the packets sent to the OFFCHANNEL
913 * queue are sent in ROC session.
915 flush_work(&mvm
->roc_done_wk
);
918 * By now, all the AC queues are empty. The AGG queues are
919 * empty too. We already got all the Tx responses for all the
920 * packets in the queues. The drain work can have been
921 * triggered. Flush it.
923 flush_work(&mvm
->sta_drained_wk
);
927 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
928 struct ieee80211_vif
*vif
)
930 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
931 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
933 iwl_mvm_prepare_mac_removal(mvm
, vif
);
935 mutex_lock(&mvm
->mutex
);
937 if (mvm
->bf_allowed_vif
== mvmvif
) {
938 mvm
->bf_allowed_vif
= NULL
;
939 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
940 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
943 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
946 * For AP/GO interface, the tear down of the resources allocated to the
947 * interface is be handled as part of the stop_ap flow.
949 if (vif
->type
== NL80211_IFTYPE_AP
||
950 vif
->type
== NL80211_IFTYPE_ADHOC
) {
951 #ifdef CONFIG_NL80211_TESTMODE
952 if (vif
== mvm
->noa_vif
) {
954 mvm
->noa_duration
= 0;
957 iwl_mvm_dealloc_int_sta(mvm
, &mvmvif
->bcast_sta
);
961 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
962 mvm
->p2p_device_vif
= NULL
;
963 iwl_mvm_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
964 iwl_mvm_binding_remove_vif(mvm
, vif
);
965 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
966 mvmvif
->phy_ctxt
= NULL
;
969 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
972 iwl_mvm_power_update_mac(mvm
, vif
);
973 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
976 iwl_mvm_mac_ctxt_release(mvm
, vif
);
977 mutex_unlock(&mvm
->mutex
);
980 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
985 struct iwl_mvm_mc_iter_data
{
990 static void iwl_mvm_mc_iface_iterator(void *_data
, u8
*mac
,
991 struct ieee80211_vif
*vif
)
993 struct iwl_mvm_mc_iter_data
*data
= _data
;
994 struct iwl_mvm
*mvm
= data
->mvm
;
995 struct iwl_mcast_filter_cmd
*cmd
= mvm
->mcast_filter_cmd
;
998 /* if we don't have free ports, mcast frames will be dropped */
999 if (WARN_ON_ONCE(data
->port_id
>= MAX_PORT_ID_NUM
))
1002 if (vif
->type
!= NL80211_IFTYPE_STATION
||
1003 !vif
->bss_conf
.assoc
)
1006 cmd
->port_id
= data
->port_id
++;
1007 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
1008 len
= roundup(sizeof(*cmd
) + cmd
->count
* ETH_ALEN
, 4);
1010 ret
= iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_SYNC
, len
, cmd
);
1012 IWL_ERR(mvm
, "mcast filter cmd error. ret=%d\n", ret
);
1015 static void iwl_mvm_recalc_multicast(struct iwl_mvm
*mvm
)
1017 struct iwl_mvm_mc_iter_data iter_data
= {
1021 lockdep_assert_held(&mvm
->mutex
);
1023 if (WARN_ON_ONCE(!mvm
->mcast_filter_cmd
))
1026 ieee80211_iterate_active_interfaces(
1027 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1028 iwl_mvm_mc_iface_iterator
, &iter_data
);
1031 static u64
iwl_mvm_prepare_multicast(struct ieee80211_hw
*hw
,
1032 struct netdev_hw_addr_list
*mc_list
)
1034 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1035 struct iwl_mcast_filter_cmd
*cmd
;
1036 struct netdev_hw_addr
*addr
;
1037 int addr_count
= netdev_hw_addr_list_count(mc_list
);
1038 bool pass_all
= false;
1041 if (addr_count
> MAX_MCAST_FILTERING_ADDRESSES
) {
1046 len
= roundup(sizeof(*cmd
) + addr_count
* ETH_ALEN
, 4);
1047 cmd
= kzalloc(len
, GFP_ATOMIC
);
1053 return (u64
)(unsigned long)cmd
;
1056 netdev_hw_addr_list_for_each(addr
, mc_list
) {
1057 IWL_DEBUG_MAC80211(mvm
, "mcast addr (%d): %pM\n",
1058 cmd
->count
, addr
->addr
);
1059 memcpy(&cmd
->addr_list
[cmd
->count
* ETH_ALEN
],
1060 addr
->addr
, ETH_ALEN
);
1064 return (u64
)(unsigned long)cmd
;
1067 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
1068 unsigned int changed_flags
,
1069 unsigned int *total_flags
,
1072 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1073 struct iwl_mcast_filter_cmd
*cmd
= (void *)(unsigned long)multicast
;
1075 mutex_lock(&mvm
->mutex
);
1077 /* replace previous configuration */
1078 kfree(mvm
->mcast_filter_cmd
);
1079 mvm
->mcast_filter_cmd
= cmd
;
1084 iwl_mvm_recalc_multicast(mvm
);
1086 mutex_unlock(&mvm
->mutex
);
1090 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1091 struct iwl_bcast_iter_data
{
1092 struct iwl_mvm
*mvm
;
1093 struct iwl_bcast_filter_cmd
*cmd
;
1098 iwl_mvm_set_bcast_filter(struct ieee80211_vif
*vif
,
1099 const struct iwl_fw_bcast_filter
*in_filter
,
1100 struct iwl_fw_bcast_filter
*out_filter
)
1102 struct iwl_fw_bcast_filter_attr
*attr
;
1105 memcpy(out_filter
, in_filter
, sizeof(*out_filter
));
1107 for (i
= 0; i
< ARRAY_SIZE(out_filter
->attrs
); i
++) {
1108 attr
= &out_filter
->attrs
[i
];
1113 switch (attr
->reserved1
) {
1114 case cpu_to_le16(BC_FILTER_MAGIC_IP
):
1115 if (vif
->bss_conf
.arp_addr_cnt
!= 1) {
1120 attr
->val
= vif
->bss_conf
.arp_addr_list
[0];
1122 case cpu_to_le16(BC_FILTER_MAGIC_MAC
):
1123 attr
->val
= *(__be32
*)&vif
->addr
[2];
1128 attr
->reserved1
= 0;
1129 out_filter
->num_attrs
++;
1133 static void iwl_mvm_bcast_filter_iterator(void *_data
, u8
*mac
,
1134 struct ieee80211_vif
*vif
)
1136 struct iwl_bcast_iter_data
*data
= _data
;
1137 struct iwl_mvm
*mvm
= data
->mvm
;
1138 struct iwl_bcast_filter_cmd
*cmd
= data
->cmd
;
1139 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1140 struct iwl_fw_bcast_mac
*bcast_mac
;
1143 if (WARN_ON(mvmvif
->id
>= ARRAY_SIZE(cmd
->macs
)))
1146 bcast_mac
= &cmd
->macs
[mvmvif
->id
];
1148 /* enable filtering only for associated stations */
1149 if (vif
->type
!= NL80211_IFTYPE_STATION
|| !vif
->bss_conf
.assoc
)
1152 bcast_mac
->default_discard
= 1;
1154 /* copy all configured filters */
1155 for (i
= 0; mvm
->bcast_filters
[i
].attrs
[0].mask
; i
++) {
1157 * Make sure we don't exceed our filters limit.
1158 * if there is still a valid filter to be configured,
1159 * be on the safe side and just allow bcast for this mac.
1161 if (WARN_ON_ONCE(data
->current_filter
>=
1162 ARRAY_SIZE(cmd
->filters
))) {
1163 bcast_mac
->default_discard
= 0;
1164 bcast_mac
->attached_filters
= 0;
1168 iwl_mvm_set_bcast_filter(vif
,
1169 &mvm
->bcast_filters
[i
],
1170 &cmd
->filters
[data
->current_filter
]);
1172 /* skip current filter if it contains no attributes */
1173 if (!cmd
->filters
[data
->current_filter
].num_attrs
)
1176 /* attach the filter to current mac */
1177 bcast_mac
->attached_filters
|=
1178 cpu_to_le16(BIT(data
->current_filter
));
1180 data
->current_filter
++;
1184 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm
*mvm
,
1185 struct iwl_bcast_filter_cmd
*cmd
)
1187 struct iwl_bcast_iter_data iter_data
= {
1192 memset(cmd
, 0, sizeof(*cmd
));
1193 cmd
->max_bcast_filters
= ARRAY_SIZE(cmd
->filters
);
1194 cmd
->max_macs
= ARRAY_SIZE(cmd
->macs
);
1196 #ifdef CONFIG_IWLWIFI_DEBUGFS
1197 /* use debugfs filters/macs if override is configured */
1198 if (mvm
->dbgfs_bcast_filtering
.override
) {
1199 memcpy(cmd
->filters
, &mvm
->dbgfs_bcast_filtering
.cmd
.filters
,
1200 sizeof(cmd
->filters
));
1201 memcpy(cmd
->macs
, &mvm
->dbgfs_bcast_filtering
.cmd
.macs
,
1207 /* if no filters are configured, do nothing */
1208 if (!mvm
->bcast_filters
)
1211 /* configure and attach these filters for each associated sta vif */
1212 ieee80211_iterate_active_interfaces(
1213 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1214 iwl_mvm_bcast_filter_iterator
, &iter_data
);
1218 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1219 struct ieee80211_vif
*vif
)
1221 struct iwl_bcast_filter_cmd cmd
;
1223 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BCAST_FILTERING
))
1226 if (!iwl_mvm_bcast_filter_build_cmd(mvm
, &cmd
))
1229 return iwl_mvm_send_cmd_pdu(mvm
, BCAST_FILTER_CMD
, CMD_SYNC
,
1233 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1234 struct ieee80211_vif
*vif
)
1240 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
1241 struct ieee80211_vif
*vif
,
1242 struct ieee80211_bss_conf
*bss_conf
,
1245 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1249 * Re-calculate the tsf id, as the master-slave relations depend on the
1250 * beacon interval, which was not known when the station interface was
1253 if (changes
& BSS_CHANGED_ASSOC
&& bss_conf
->assoc
)
1254 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1256 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
);
1258 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1260 if (changes
& BSS_CHANGED_ASSOC
) {
1261 if (bss_conf
->assoc
) {
1262 /* add quota for this interface */
1263 ret
= iwl_mvm_update_quotas(mvm
, vif
);
1265 IWL_ERR(mvm
, "failed to update quotas\n");
1269 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
1272 * If we're restarting then the firmware will
1273 * obviously have lost synchronisation with
1274 * the AP. It will attempt to synchronise by
1275 * itself, but we can make it more reliable by
1276 * scheduling a session protection time event.
1278 * The firmware needs to receive a beacon to
1279 * catch up with synchronisation, use 110% of
1280 * the beacon interval.
1282 * Set a large maximum delay to allow for more
1283 * than a single interface.
1285 u32 dur
= (11 * vif
->bss_conf
.beacon_int
) / 10;
1286 iwl_mvm_protect_session(mvm
, vif
, dur
, dur
,
1290 iwl_mvm_sf_update(mvm
, vif
, false);
1291 iwl_mvm_power_vif_assoc(mvm
, vif
);
1293 iwl_mvm_ref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1294 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_STATION_COUNT
) {
1296 * If update fails - SF might be running in associated
1297 * mode while disassociated - which is forbidden.
1299 WARN_ONCE(iwl_mvm_sf_update(mvm
, vif
, false),
1300 "Failed to update SF upon disassociation\n");
1302 /* remove AP station now that the MAC is unassoc */
1303 ret
= iwl_mvm_rm_sta_id(mvm
, vif
, mvmvif
->ap_sta_id
);
1305 IWL_ERR(mvm
, "failed to remove AP station\n");
1307 if (mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
1308 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1309 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
1310 /* remove quota for this interface */
1311 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1313 IWL_ERR(mvm
, "failed to update quotas\n");
1316 iwl_mvm_unref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1319 iwl_mvm_recalc_multicast(mvm
);
1320 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1322 /* reset rssi values */
1323 mvmvif
->bf_data
.ave_beacon_signal
= 0;
1325 iwl_mvm_bt_coex_vif_change(mvm
);
1326 iwl_mvm_update_smps(mvm
, vif
, IWL_MVM_SMPS_REQ_TT
,
1327 IEEE80211_SMPS_AUTOMATIC
);
1328 } else if (changes
& BSS_CHANGED_BEACON_INFO
) {
1330 * We received a beacon _after_ association so
1331 * remove the session protection.
1333 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1334 &mvmvif
->time_event_data
);
1335 iwl_mvm_sf_update(mvm
, vif
, false);
1336 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, CMD_SYNC
));
1337 } else if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_P2P_PS
|
1339 ret
= iwl_mvm_power_update_mac(mvm
, vif
);
1341 IWL_ERR(mvm
, "failed to update power mode\n");
1343 if (changes
& BSS_CHANGED_TXPOWER
) {
1344 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
1346 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
1349 if (changes
& BSS_CHANGED_CQM
) {
1350 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed");
1351 /* reset cqm events tracking */
1352 mvmvif
->bf_data
.last_cqm_event
= 0;
1353 ret
= iwl_mvm_update_beacon_filter(mvm
, vif
, false, CMD_SYNC
);
1355 IWL_ERR(mvm
, "failed to update CQM thresholds\n");
1358 if (changes
& BSS_CHANGED_ARP_FILTER
) {
1359 IWL_DEBUG_MAC80211(mvm
, "arp filter changed");
1360 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1364 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw
*hw
,
1365 struct ieee80211_vif
*vif
)
1367 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1368 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1371 mutex_lock(&mvm
->mutex
);
1373 /* Send the beacon template */
1374 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
1379 * Re-calculate the tsf id, as the master-slave relations depend on the
1380 * beacon interval, which was not known when the AP interface was added.
1382 if (vif
->type
== NL80211_IFTYPE_AP
)
1383 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1385 /* Add the mac context */
1386 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1390 /* Perform the binding */
1391 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1395 /* Send the bcast station. At this stage the TBTT and DTIM time events
1396 * are added and applied to the scheduler */
1397 ret
= iwl_mvm_send_bcast_sta(mvm
, vif
, &mvmvif
->bcast_sta
);
1401 /* must be set before quota calculations */
1402 mvmvif
->ap_ibss_active
= true;
1404 /* power updated needs to be done before quotas */
1405 iwl_mvm_power_update_mac(mvm
, vif
);
1407 ret
= iwl_mvm_update_quotas(mvm
, vif
);
1409 goto out_quota_failed
;
1411 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1412 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1413 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
);
1415 iwl_mvm_ref(mvm
, IWL_MVM_REF_AP_IBSS
);
1417 iwl_mvm_bt_coex_vif_change(mvm
);
1419 mutex_unlock(&mvm
->mutex
);
1423 iwl_mvm_power_update_mac(mvm
, vif
);
1424 mvmvif
->ap_ibss_active
= false;
1425 iwl_mvm_send_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
1427 iwl_mvm_binding_remove_vif(mvm
, vif
);
1429 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1431 mutex_unlock(&mvm
->mutex
);
1435 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw
*hw
,
1436 struct ieee80211_vif
*vif
)
1438 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1439 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1441 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1443 mutex_lock(&mvm
->mutex
);
1445 mvmvif
->ap_ibss_active
= false;
1447 iwl_mvm_bt_coex_vif_change(mvm
);
1449 iwl_mvm_unref(mvm
, IWL_MVM_REF_AP_IBSS
);
1451 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1452 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1453 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
);
1455 iwl_mvm_update_quotas(mvm
, NULL
);
1456 iwl_mvm_send_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
1457 iwl_mvm_binding_remove_vif(mvm
, vif
);
1459 iwl_mvm_power_update_mac(mvm
, vif
);
1461 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1463 mutex_unlock(&mvm
->mutex
);
1467 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm
*mvm
,
1468 struct ieee80211_vif
*vif
,
1469 struct ieee80211_bss_conf
*bss_conf
,
1472 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1474 /* Changes will be applied when the AP/IBSS is started */
1475 if (!mvmvif
->ap_ibss_active
)
1478 if (changes
& (BSS_CHANGED_ERP_CTS_PROT
| BSS_CHANGED_HT
|
1479 BSS_CHANGED_BANDWIDTH
) &&
1480 iwl_mvm_mac_ctxt_changed(mvm
, vif
))
1481 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1483 /* Need to send a new beacon template to the FW */
1484 if (changes
& BSS_CHANGED_BEACON
&&
1485 iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
1486 IWL_WARN(mvm
, "Failed updating beacon data\n");
1489 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
1490 struct ieee80211_vif
*vif
,
1491 struct ieee80211_bss_conf
*bss_conf
,
1494 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1496 mutex_lock(&mvm
->mutex
);
1498 switch (vif
->type
) {
1499 case NL80211_IFTYPE_STATION
:
1500 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
1502 case NL80211_IFTYPE_AP
:
1503 case NL80211_IFTYPE_ADHOC
:
1504 iwl_mvm_bss_info_changed_ap_ibss(mvm
, vif
, bss_conf
, changes
);
1507 /* shouldn't happen */
1511 mutex_unlock(&mvm
->mutex
);
1514 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
1515 struct ieee80211_vif
*vif
,
1516 struct cfg80211_scan_request
*req
)
1518 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1521 if (req
->n_channels
== 0 || req
->n_channels
> MAX_NUM_SCAN_CHANNELS
)
1524 mutex_lock(&mvm
->mutex
);
1526 switch (mvm
->scan_status
) {
1527 case IWL_MVM_SCAN_SCHED
:
1528 ret
= iwl_mvm_sched_scan_stop(mvm
);
1534 case IWL_MVM_SCAN_NONE
:
1541 iwl_mvm_ref(mvm
, IWL_MVM_REF_SCAN
);
1543 ret
= iwl_mvm_scan_request(mvm
, vif
, req
);
1545 iwl_mvm_unref(mvm
, IWL_MVM_REF_SCAN
);
1547 mutex_unlock(&mvm
->mutex
);
1548 /* make sure to flush the Rx handler before the next scan arrives */
1549 iwl_mvm_wait_for_async_handlers(mvm
);
1553 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
1554 struct ieee80211_vif
*vif
)
1556 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1558 mutex_lock(&mvm
->mutex
);
1560 iwl_mvm_cancel_scan(mvm
);
1562 mutex_unlock(&mvm
->mutex
);
1566 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
1567 struct ieee80211_sta
*sta
, u16 tids
,
1569 enum ieee80211_frame_release_type reason
,
1572 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1574 /* Called when we need to transmit (a) frame(s) from mac80211 */
1576 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
1577 tids
, more_data
, false);
1581 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw
*hw
,
1582 struct ieee80211_sta
*sta
, u16 tids
,
1584 enum ieee80211_frame_release_type reason
,
1587 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1589 /* Called when we need to transmit (a) frame(s) from agg queue */
1591 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
1592 tids
, more_data
, true);
1595 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
1596 struct ieee80211_vif
*vif
,
1597 enum sta_notify_cmd cmd
,
1598 struct ieee80211_sta
*sta
)
1600 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1601 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
1605 case STA_NOTIFY_SLEEP
:
1606 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
1607 ieee80211_sta_block_awake(hw
, sta
, true);
1608 spin_lock_bh(&mvmsta
->lock
);
1609 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
1610 struct iwl_mvm_tid_data
*tid_data
;
1612 tid_data
= &mvmsta
->tid_data
[tid
];
1613 if (tid_data
->state
!= IWL_AGG_ON
&&
1614 tid_data
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
1616 if (iwl_mvm_tid_queued(tid_data
) == 0)
1618 ieee80211_sta_set_buffered(sta
, tid
, true);
1620 spin_unlock_bh(&mvmsta
->lock
);
1622 * The fw updates the STA to be asleep. Tx packets on the Tx
1623 * queues to this station will not be transmitted. The fw will
1624 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1627 case STA_NOTIFY_AWAKE
:
1628 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
))
1630 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
1637 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw
*hw
,
1638 struct ieee80211_vif
*vif
,
1639 struct ieee80211_sta
*sta
)
1641 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1642 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
1645 * This is called before mac80211 does RCU synchronisation,
1646 * so here we already invalidate our internal RCU-protected
1647 * station pointer. The rest of the code will thus no longer
1648 * be able to find the station this way, and we don't rely
1649 * on further RCU synchronisation after the sta_state()
1650 * callback deleted the station.
1652 mutex_lock(&mvm
->mutex
);
1653 if (sta
== rcu_access_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
]))
1654 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
],
1656 mutex_unlock(&mvm
->mutex
);
1659 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
1660 struct ieee80211_vif
*vif
,
1661 struct ieee80211_sta
*sta
,
1662 enum ieee80211_sta_state old_state
,
1663 enum ieee80211_sta_state new_state
)
1665 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1666 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1669 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
1670 sta
->addr
, old_state
, new_state
);
1672 /* this would be a mac80211 bug ... but don't crash */
1673 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
1676 /* if a STA is being removed, reuse its ID */
1677 flush_work(&mvm
->sta_drained_wk
);
1679 mutex_lock(&mvm
->mutex
);
1680 if (old_state
== IEEE80211_STA_NOTEXIST
&&
1681 new_state
== IEEE80211_STA_NONE
) {
1683 * Firmware bug - it'll crash if the beacon interval is less
1684 * than 16. We can't avoid connecting at all, so refuse the
1685 * station state change, this will cause mac80211 to abandon
1686 * attempts to connect to this AP, and eventually wpa_s will
1687 * blacklist the AP...
1689 if (vif
->type
== NL80211_IFTYPE_STATION
&&
1690 vif
->bss_conf
.beacon_int
< 16) {
1692 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
1693 sta
->addr
, vif
->bss_conf
.beacon_int
);
1697 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
1698 } else if (old_state
== IEEE80211_STA_NONE
&&
1699 new_state
== IEEE80211_STA_AUTH
) {
1701 } else if (old_state
== IEEE80211_STA_AUTH
&&
1702 new_state
== IEEE80211_STA_ASSOC
) {
1703 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
1705 iwl_mvm_rs_rate_init(mvm
, sta
,
1706 mvmvif
->phy_ctxt
->channel
->band
,
1708 } else if (old_state
== IEEE80211_STA_ASSOC
&&
1709 new_state
== IEEE80211_STA_AUTHORIZED
) {
1710 /* enable beacon filtering */
1711 if (vif
->bss_conf
.dtim_period
)
1712 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
,
1715 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
1716 new_state
== IEEE80211_STA_ASSOC
) {
1717 /* disable beacon filtering */
1718 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
, CMD_SYNC
));
1720 } else if (old_state
== IEEE80211_STA_ASSOC
&&
1721 new_state
== IEEE80211_STA_AUTH
) {
1723 } else if (old_state
== IEEE80211_STA_AUTH
&&
1724 new_state
== IEEE80211_STA_NONE
) {
1726 } else if (old_state
== IEEE80211_STA_NONE
&&
1727 new_state
== IEEE80211_STA_NOTEXIST
) {
1728 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
1733 mutex_unlock(&mvm
->mutex
);
1738 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
1740 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1742 mvm
->rts_threshold
= value
;
1747 static void iwl_mvm_sta_rc_update(struct ieee80211_hw
*hw
,
1748 struct ieee80211_vif
*vif
,
1749 struct ieee80211_sta
*sta
, u32 changed
)
1751 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1753 if (vif
->type
== NL80211_IFTYPE_STATION
&&
1754 changed
& IEEE80211_RC_NSS_CHANGED
)
1755 iwl_mvm_sf_update(mvm
, vif
, false);
1758 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
1759 struct ieee80211_vif
*vif
, u16 ac
,
1760 const struct ieee80211_tx_queue_params
*params
)
1762 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1763 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1765 mvmvif
->queue_params
[ac
] = *params
;
1768 * No need to update right away, we'll get BSS_CHANGED_QOS
1769 * The exception is P2P_DEVICE interface which needs immediate update.
1771 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1774 mutex_lock(&mvm
->mutex
);
1775 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
);
1776 mutex_unlock(&mvm
->mutex
);
1782 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
1783 struct ieee80211_vif
*vif
)
1785 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1786 u32 duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
,
1787 200 + vif
->bss_conf
.beacon_int
);
1788 u32 min_duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
,
1789 100 + vif
->bss_conf
.beacon_int
);
1791 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
1794 mutex_lock(&mvm
->mutex
);
1795 /* Try really hard to protect the session and hear a beacon */
1796 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
, 500);
1797 mutex_unlock(&mvm
->mutex
);
1800 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw
*hw
,
1801 struct ieee80211_vif
*vif
,
1802 struct cfg80211_sched_scan_request
*req
,
1803 struct ieee80211_sched_scan_ies
*ies
)
1805 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1808 mutex_lock(&mvm
->mutex
);
1810 switch (mvm
->scan_status
) {
1811 case IWL_MVM_SCAN_OS
:
1812 IWL_DEBUG_SCAN(mvm
, "Stopping previous scan for sched_scan\n");
1813 ret
= iwl_mvm_cancel_scan(mvm
);
1820 * iwl_mvm_rx_scan_complete() will be called soon but will
1821 * not reset the scan status as it won't be IWL_MVM_SCAN_OS
1822 * any more since we queue the next scan immediately (below).
1823 * We make sure it is called before the next scan starts by
1824 * flushing the async-handlers work.
1827 case IWL_MVM_SCAN_NONE
:
1834 mvm
->scan_status
= IWL_MVM_SCAN_SCHED
;
1836 ret
= iwl_mvm_config_sched_scan(mvm
, vif
, req
, ies
);
1840 ret
= iwl_mvm_config_sched_scan_profiles(mvm
, req
);
1844 ret
= iwl_mvm_sched_scan_start(mvm
, req
);
1848 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
1850 mutex_unlock(&mvm
->mutex
);
1851 /* make sure to flush the Rx handler before the next scan arrives */
1852 iwl_mvm_wait_for_async_handlers(mvm
);
1856 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw
*hw
,
1857 struct ieee80211_vif
*vif
)
1859 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1862 mutex_lock(&mvm
->mutex
);
1863 ret
= iwl_mvm_sched_scan_stop(mvm
);
1864 mutex_unlock(&mvm
->mutex
);
1865 iwl_mvm_wait_for_async_handlers(mvm
);
1870 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
1871 enum set_key_cmd cmd
,
1872 struct ieee80211_vif
*vif
,
1873 struct ieee80211_sta
*sta
,
1874 struct ieee80211_key_conf
*key
)
1876 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1879 if (iwlwifi_mod_params
.sw_crypto
) {
1880 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
1884 switch (key
->cipher
) {
1885 case WLAN_CIPHER_SUITE_TKIP
:
1886 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
1888 case WLAN_CIPHER_SUITE_CCMP
:
1889 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
1891 case WLAN_CIPHER_SUITE_AES_CMAC
:
1892 WARN_ON_ONCE(!(hw
->flags
& IEEE80211_HW_MFP_CAPABLE
));
1894 case WLAN_CIPHER_SUITE_WEP40
:
1895 case WLAN_CIPHER_SUITE_WEP104
:
1897 * Support for TX only, at least for now, so accept
1898 * the key and do nothing else. Then mac80211 will
1899 * pass it for TX but we don't have to use it for RX.
1903 /* currently FW supports only one optional cipher scheme */
1904 if (hw
->n_cipher_schemes
&&
1905 hw
->cipher_schemes
->cipher
== key
->cipher
)
1906 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
1911 mutex_lock(&mvm
->mutex
);
1915 if ((vif
->type
== NL80211_IFTYPE_ADHOC
||
1916 vif
->type
== NL80211_IFTYPE_AP
) && !sta
) {
1918 * GTK on AP interface is a TX-only key, return 0;
1919 * on IBSS they're per-station and because we're lazy
1920 * we don't support them for RX, so do the same.
1923 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
1927 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
1928 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, false);
1930 IWL_WARN(mvm
, "set key failed\n");
1932 * can't add key for RX, but we don't need it
1933 * in the device for TX so still return 0
1935 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
1941 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
1946 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
1947 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
1953 mutex_unlock(&mvm
->mutex
);
1957 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
1958 struct ieee80211_vif
*vif
,
1959 struct ieee80211_key_conf
*keyconf
,
1960 struct ieee80211_sta
*sta
,
1961 u32 iv32
, u16
*phase1key
)
1963 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1965 if (keyconf
->hw_key_idx
== STA_KEY_IDX_INVALID
)
1968 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
1972 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
1973 struct ieee80211_vif
*vif
,
1974 struct ieee80211_channel
*channel
,
1976 enum ieee80211_roc_type type
)
1978 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1979 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1980 struct cfg80211_chan_def chandef
;
1981 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
1984 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
1987 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
) {
1988 IWL_ERR(mvm
, "vif isn't a P2P_DEVICE: %d\n", vif
->type
);
1992 mutex_lock(&mvm
->mutex
);
1994 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
1995 phy_ctxt
= &mvm
->phy_ctxts
[i
];
1996 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
1999 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
2001 * Unbind the P2P_DEVICE from the current PHY context,
2002 * and if the PHY context is not used remove it.
2004 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2005 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2008 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2010 /* Bind the P2P_DEVICE to the current PHY Context */
2011 mvmvif
->phy_ctxt
= phy_ctxt
;
2013 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2014 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2017 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2018 goto schedule_time_event
;
2022 /* Need to update the PHY context only if the ROC channel changed */
2023 if (channel
== mvmvif
->phy_ctxt
->channel
)
2024 goto schedule_time_event
;
2026 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
2029 * Change the PHY context configuration as it is currently referenced
2030 * only by the P2P Device MAC
2032 if (mvmvif
->phy_ctxt
->ref
== 1) {
2033 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
2039 * The PHY context is shared with other MACs. Need to remove the
2040 * P2P Device from the binding, allocate an new PHY context and
2041 * create a new binding
2043 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2049 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
2052 IWL_ERR(mvm
, "Failed to change PHY context\n");
2056 /* Unbind the P2P_DEVICE from the current PHY context */
2057 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2058 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2061 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2063 /* Bind the P2P_DEVICE to the new allocated PHY context */
2064 mvmvif
->phy_ctxt
= phy_ctxt
;
2066 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2067 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2070 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2073 schedule_time_event
:
2074 /* Schedule the time events */
2075 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
2078 mutex_unlock(&mvm
->mutex
);
2079 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2083 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
2085 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2087 IWL_DEBUG_MAC80211(mvm
, "enter\n");
2089 mutex_lock(&mvm
->mutex
);
2090 iwl_mvm_stop_p2p_roc(mvm
);
2091 mutex_unlock(&mvm
->mutex
);
2093 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2097 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
2098 struct ieee80211_chanctx_conf
*ctx
)
2100 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2101 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2102 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2105 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
2107 mutex_lock(&mvm
->mutex
);
2108 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2114 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2115 ctx
->rx_chains_static
,
2116 ctx
->rx_chains_dynamic
);
2118 IWL_ERR(mvm
, "Failed to add PHY context\n");
2122 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
2123 *phy_ctxt_id
= phy_ctxt
->id
;
2125 mutex_unlock(&mvm
->mutex
);
2129 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
2130 struct ieee80211_chanctx_conf
*ctx
)
2132 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2133 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2134 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2136 mutex_lock(&mvm
->mutex
);
2137 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
2138 mutex_unlock(&mvm
->mutex
);
2141 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
2142 struct ieee80211_chanctx_conf
*ctx
,
2145 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2146 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2147 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2149 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
2150 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
2151 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
2152 IEEE80211_CHANCTX_CHANGE_RADAR
|
2153 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH
)),
2154 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2155 phy_ctxt
->ref
, changed
))
2158 mutex_lock(&mvm
->mutex
);
2159 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2160 ctx
->rx_chains_static
,
2161 ctx
->rx_chains_dynamic
);
2162 iwl_mvm_bt_coex_vif_change(mvm
);
2163 mutex_unlock(&mvm
->mutex
);
2166 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
2167 struct ieee80211_vif
*vif
,
2168 struct ieee80211_chanctx_conf
*ctx
)
2170 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2171 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2172 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2173 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2176 mutex_lock(&mvm
->mutex
);
2178 mvmvif
->phy_ctxt
= phy_ctxt
;
2180 switch (vif
->type
) {
2181 case NL80211_IFTYPE_AP
:
2182 case NL80211_IFTYPE_ADHOC
:
2184 * The AP binding flow is handled as part of the start_ap flow
2185 * (in bss_info_changed), similarly for IBSS.
2189 case NL80211_IFTYPE_STATION
:
2190 case NL80211_IFTYPE_MONITOR
:
2197 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2202 * Power state must be updated before quotas,
2203 * otherwise fw will complain.
2205 iwl_mvm_power_update_mac(mvm
, vif
);
2207 /* Setting the quota at this stage is only required for monitor
2208 * interfaces. For the other types, the bss_info changed flow
2209 * will handle quota settings.
2211 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
2212 mvmvif
->monitor_active
= true;
2213 ret
= iwl_mvm_update_quotas(mvm
, vif
);
2215 goto out_remove_binding
;
2221 iwl_mvm_binding_remove_vif(mvm
, vif
);
2222 iwl_mvm_power_update_mac(mvm
, vif
);
2224 mutex_unlock(&mvm
->mutex
);
2226 mvmvif
->phy_ctxt
= NULL
;
2230 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
2231 struct ieee80211_vif
*vif
,
2232 struct ieee80211_chanctx_conf
*ctx
)
2234 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2235 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2237 mutex_lock(&mvm
->mutex
);
2239 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
2241 switch (vif
->type
) {
2242 case NL80211_IFTYPE_AP
:
2243 case NL80211_IFTYPE_ADHOC
:
2245 case NL80211_IFTYPE_MONITOR
:
2246 mvmvif
->monitor_active
= false;
2247 iwl_mvm_update_quotas(mvm
, NULL
);
2253 iwl_mvm_binding_remove_vif(mvm
, vif
);
2254 iwl_mvm_power_update_mac(mvm
, vif
);
2257 mvmvif
->phy_ctxt
= NULL
;
2258 mutex_unlock(&mvm
->mutex
);
2261 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
2262 struct ieee80211_sta
*sta
,
2265 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2266 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
2268 if (!mvm_sta
|| !mvm_sta
->vif
) {
2269 IWL_ERR(mvm
, "Station is not associated to a vif\n");
2273 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
2276 #ifdef CONFIG_NL80211_TESTMODE
2277 static const struct nla_policy iwl_mvm_tm_policy
[IWL_MVM_TM_ATTR_MAX
+ 1] = {
2278 [IWL_MVM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
2279 [IWL_MVM_TM_ATTR_NOA_DURATION
] = { .type
= NLA_U32
},
2280 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
] = { .type
= NLA_U32
},
2283 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm
*mvm
,
2284 struct ieee80211_vif
*vif
,
2285 void *data
, int len
)
2287 struct nlattr
*tb
[IWL_MVM_TM_ATTR_MAX
+ 1];
2291 err
= nla_parse(tb
, IWL_MVM_TM_ATTR_MAX
, data
, len
, iwl_mvm_tm_policy
);
2295 if (!tb
[IWL_MVM_TM_ATTR_CMD
])
2298 switch (nla_get_u32(tb
[IWL_MVM_TM_ATTR_CMD
])) {
2299 case IWL_MVM_TM_CMD_SET_NOA
:
2300 if (!vif
|| vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
||
2301 !vif
->bss_conf
.enable_beacon
||
2302 !tb
[IWL_MVM_TM_ATTR_NOA_DURATION
])
2305 noa_duration
= nla_get_u32(tb
[IWL_MVM_TM_ATTR_NOA_DURATION
]);
2306 if (noa_duration
>= vif
->bss_conf
.beacon_int
)
2309 mvm
->noa_duration
= noa_duration
;
2312 return iwl_mvm_update_quotas(mvm
, NULL
);
2313 case IWL_MVM_TM_CMD_SET_BEACON_FILTER
:
2314 /* must be associated client vif - ignore authorized */
2315 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
||
2316 !vif
->bss_conf
.assoc
|| !vif
->bss_conf
.dtim_period
||
2317 !tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
])
2320 if (nla_get_u32(tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
]))
2321 return iwl_mvm_enable_beacon_filter(mvm
, vif
,
2323 return iwl_mvm_disable_beacon_filter(mvm
, vif
, CMD_SYNC
);
2329 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw
*hw
,
2330 struct ieee80211_vif
*vif
,
2331 void *data
, int len
)
2333 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2336 mutex_lock(&mvm
->mutex
);
2337 err
= __iwl_mvm_mac_testmode_cmd(mvm
, vif
, data
, len
);
2338 mutex_unlock(&mvm
->mutex
);
2344 const struct ieee80211_ops iwl_mvm_hw_ops
= {
2345 .tx
= iwl_mvm_mac_tx
,
2346 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
2347 .start
= iwl_mvm_mac_start
,
2348 .restart_complete
= iwl_mvm_mac_restart_complete
,
2349 .stop
= iwl_mvm_mac_stop
,
2350 .add_interface
= iwl_mvm_mac_add_interface
,
2351 .remove_interface
= iwl_mvm_mac_remove_interface
,
2352 .config
= iwl_mvm_mac_config
,
2353 .prepare_multicast
= iwl_mvm_prepare_multicast
,
2354 .configure_filter
= iwl_mvm_configure_filter
,
2355 .bss_info_changed
= iwl_mvm_bss_info_changed
,
2356 .hw_scan
= iwl_mvm_mac_hw_scan
,
2357 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
2358 .sta_pre_rcu_remove
= iwl_mvm_sta_pre_rcu_remove
,
2359 .sta_state
= iwl_mvm_mac_sta_state
,
2360 .sta_notify
= iwl_mvm_mac_sta_notify
,
2361 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
2362 .release_buffered_frames
= iwl_mvm_mac_release_buffered_frames
,
2363 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
2364 .sta_rc_update
= iwl_mvm_sta_rc_update
,
2365 .conf_tx
= iwl_mvm_mac_conf_tx
,
2366 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
2367 .sched_scan_start
= iwl_mvm_mac_sched_scan_start
,
2368 .sched_scan_stop
= iwl_mvm_mac_sched_scan_stop
,
2369 .set_key
= iwl_mvm_mac_set_key
,
2370 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
2371 .remain_on_channel
= iwl_mvm_roc
,
2372 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
2373 .add_chanctx
= iwl_mvm_add_chanctx
,
2374 .remove_chanctx
= iwl_mvm_remove_chanctx
,
2375 .change_chanctx
= iwl_mvm_change_chanctx
,
2376 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
2377 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
2379 .start_ap
= iwl_mvm_start_ap_ibss
,
2380 .stop_ap
= iwl_mvm_stop_ap_ibss
,
2381 .join_ibss
= iwl_mvm_start_ap_ibss
,
2382 .leave_ibss
= iwl_mvm_stop_ap_ibss
,
2384 .set_tim
= iwl_mvm_set_tim
,
2386 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd
)
2388 #ifdef CONFIG_PM_SLEEP
2390 .suspend
= iwl_mvm_suspend
,
2391 .resume
= iwl_mvm_resume
,
2392 .set_wakeup
= iwl_mvm_set_wakeup
,
2393 .set_rekey_data
= iwl_mvm_set_rekey_data
,
2394 #if IS_ENABLED(CONFIG_IPV6)
2395 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
2397 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,