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"
83 #include "iwl-fw-error-dump.h"
86 static const struct ieee80211_iface_limit iwl_mvm_limits
[] = {
89 .types
= BIT(NL80211_IFTYPE_STATION
),
93 .types
= BIT(NL80211_IFTYPE_AP
) |
94 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
95 BIT(NL80211_IFTYPE_P2P_GO
),
99 .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
),
103 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations
[] = {
105 .num_different_channels
= 1,
107 .limits
= iwl_mvm_limits
,
108 .n_limits
= ARRAY_SIZE(iwl_mvm_limits
),
112 #ifdef CONFIG_PM_SLEEP
113 static const struct nl80211_wowlan_tcp_data_token_feature
114 iwl_mvm_wowlan_tcp_token_feature
= {
117 .bufsize
= IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS
,
120 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support
= {
121 .tok
= &iwl_mvm_wowlan_tcp_token_feature
,
122 .data_payload_max
= IWL_WOWLAN_TCP_MAX_PACKET_LEN
-
123 sizeof(struct ethhdr
) -
124 sizeof(struct iphdr
) -
125 sizeof(struct tcphdr
),
126 .data_interval_max
= 65535, /* __le16 in API */
127 .wake_payload_max
= IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN
-
128 sizeof(struct ethhdr
) -
129 sizeof(struct iphdr
) -
130 sizeof(struct tcphdr
),
135 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
137 * Use the reserved field to indicate magic values.
138 * these values will only be used internally by the driver,
139 * and won't make it to the fw (reserved will be 0).
140 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
141 * be the vif's ip address. in case there is not a single
142 * ip address (0, or more than 1), this attribute will
144 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
145 * the LSB bytes of the vif's mac address
148 BC_FILTER_MAGIC_NONE
= 0,
153 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters
[] = {
157 .frame_type
= BCAST_FILTER_FRAME_TYPE_ALL
,
160 /* frame type - arp, hw type - ethernet */
162 BCAST_FILTER_OFFSET_PAYLOAD_START
,
163 .offset
= sizeof(rfc1042_header
),
164 .val
= cpu_to_be32(0x08060001),
165 .mask
= cpu_to_be32(0xffffffff),
170 BCAST_FILTER_OFFSET_PAYLOAD_START
,
171 .offset
= sizeof(rfc1042_header
) + 2 +
172 sizeof(struct arphdr
) +
173 ETH_ALEN
+ sizeof(__be32
) +
175 .mask
= cpu_to_be32(0xffffffff),
176 /* mark it as special field */
177 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_IP
),
182 /* dhcp offer bcast */
184 .frame_type
= BCAST_FILTER_FRAME_TYPE_IPV4
,
187 /* udp dest port - 68 (bootp client)*/
188 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
189 .offset
= offsetof(struct udphdr
, dest
),
190 .val
= cpu_to_be32(0x00440000),
191 .mask
= cpu_to_be32(0xffff0000),
194 /* dhcp - lsb bytes of client hw address */
195 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
197 .mask
= cpu_to_be32(0xffffffff),
198 /* mark it as special field */
199 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_MAC
),
203 /* last filter must be empty */
208 void iwl_mvm_ref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
210 if (!iwl_mvm_is_d0i3_supported(mvm
))
213 IWL_DEBUG_RPM(mvm
, "Take mvm reference - type %d\n", ref_type
);
214 spin_lock_bh(&mvm
->refs_lock
);
215 mvm
->refs
[ref_type
]++;
216 spin_unlock_bh(&mvm
->refs_lock
);
217 iwl_trans_ref(mvm
->trans
);
220 void iwl_mvm_unref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
222 if (!iwl_mvm_is_d0i3_supported(mvm
))
225 IWL_DEBUG_RPM(mvm
, "Leave mvm reference - type %d\n", ref_type
);
226 spin_lock_bh(&mvm
->refs_lock
);
227 WARN_ON(!mvm
->refs
[ref_type
]--);
228 spin_unlock_bh(&mvm
->refs_lock
);
229 iwl_trans_unref(mvm
->trans
);
232 static void iwl_mvm_unref_all_except(struct iwl_mvm
*mvm
,
233 enum iwl_mvm_ref_type except_ref
)
237 if (!iwl_mvm_is_d0i3_supported(mvm
))
240 spin_lock_bh(&mvm
->refs_lock
);
241 for (i
= 0; i
< IWL_MVM_REF_COUNT
; i
++) {
242 if (except_ref
== i
|| !mvm
->refs
[i
])
245 IWL_DEBUG_RPM(mvm
, "Cleanup: remove mvm ref type %d (%d)\n",
247 for (j
= 0; j
< mvm
->refs
[i
]; j
++)
248 iwl_trans_unref(mvm
->trans
);
251 spin_unlock_bh(&mvm
->refs_lock
);
254 int iwl_mvm_ref_sync(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
256 iwl_mvm_ref(mvm
, ref_type
);
258 if (!wait_event_timeout(mvm
->d0i3_exit_waitq
,
259 !test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
),
262 iwl_mvm_unref(mvm
, ref_type
);
269 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm
*mvm
)
273 memset(mvm
->phy_ctxts
, 0, sizeof(mvm
->phy_ctxts
));
274 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
275 mvm
->phy_ctxts
[i
].id
= i
;
276 mvm
->phy_ctxts
[i
].ref
= 0;
280 static int iwl_mvm_max_scan_ie_len(struct iwl_mvm
*mvm
)
282 /* we create the 802.11 header and SSID element */
283 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_NO_BASIC_SSID
)
284 return mvm
->fw
->ucode_capa
.max_probe_length
- 24 - 2;
285 return mvm
->fw
->ucode_capa
.max_probe_length
- 24 - 34;
288 int iwl_mvm_mac_setup_register(struct iwl_mvm
*mvm
)
290 struct ieee80211_hw
*hw
= mvm
->hw
;
293 /* Tell mac80211 our characteristics */
294 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
295 IEEE80211_HW_SPECTRUM_MGMT
|
296 IEEE80211_HW_REPORTS_TX_ACK_STATUS
|
297 IEEE80211_HW_QUEUE_CONTROL
|
298 IEEE80211_HW_WANT_MONITOR_VIF
|
299 IEEE80211_HW_SUPPORTS_PS
|
300 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
|
301 IEEE80211_HW_AMPDU_AGGREGATION
|
302 IEEE80211_HW_TIMING_BEACON_ONLY
|
303 IEEE80211_HW_CONNECTION_MONITOR
|
304 IEEE80211_HW_CHANCTX_STA_CSA
|
305 IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS
|
306 IEEE80211_HW_SUPPORTS_STATIC_SMPS
;
308 hw
->queues
= mvm
->first_agg_queue
;
309 hw
->offchannel_tx_hw_queue
= IWL_MVM_OFFCHANNEL_QUEUE
;
310 hw
->radiotap_mcs_details
|= IEEE80211_RADIOTAP_MCS_HAVE_FEC
|
311 IEEE80211_RADIOTAP_MCS_HAVE_STBC
;
312 hw
->radiotap_vht_details
|= IEEE80211_RADIOTAP_VHT_KNOWN_STBC
;
313 hw
->rate_control_algorithm
= "iwl-mvm-rs";
316 * Enable 11w if advertised by firmware and software crypto
317 * is not enabled (as the firmware will interpret some mgmt
318 * packets, so enabling it with software crypto isn't safe)
320 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_MFP
&&
321 !iwlwifi_mod_params
.sw_crypto
)
322 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
324 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT
&&
325 IWL_UCODE_API(mvm
->fw
->ucode_ver
) >= 9 &&
326 !iwlwifi_mod_params
.uapsd_disable
) {
327 hw
->flags
|= IEEE80211_HW_SUPPORTS_UAPSD
;
328 hw
->uapsd_queues
= IWL_UAPSD_AC_INFO
;
329 hw
->uapsd_max_sp_len
= IWL_UAPSD_MAX_SP
;
332 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT
&&
333 !iwlwifi_mod_params
.uapsd_disable
) {
334 hw
->flags
|= IEEE80211_HW_SUPPORTS_UAPSD
;
335 hw
->uapsd_queues
= IWL_UAPSD_AC_INFO
;
336 hw
->uapsd_max_sp_len
= IWL_UAPSD_MAX_SP
;
339 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
)
340 hw
->flags
|= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS
;
342 hw
->sta_data_size
= sizeof(struct iwl_mvm_sta
);
343 hw
->vif_data_size
= sizeof(struct iwl_mvm_vif
);
344 hw
->chanctx_data_size
= sizeof(u16
);
346 hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
347 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
348 BIT(NL80211_IFTYPE_AP
) |
349 BIT(NL80211_IFTYPE_P2P_GO
) |
350 BIT(NL80211_IFTYPE_P2P_DEVICE
) |
351 BIT(NL80211_IFTYPE_ADHOC
);
353 hw
->wiphy
->flags
|= WIPHY_FLAG_IBSS_RSN
;
354 hw
->wiphy
->regulatory_flags
|= REGULATORY_CUSTOM_REG
|
355 REGULATORY_DISABLE_BEACON_HINTS
;
357 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_GO_UAPSD
)
358 hw
->wiphy
->flags
|= WIPHY_FLAG_AP_UAPSD
;
360 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_CSA_FLOW
)
361 hw
->wiphy
->flags
|= WIPHY_FLAG_HAS_CHANNEL_SWITCH
;
363 hw
->wiphy
->iface_combinations
= iwl_mvm_iface_combinations
;
364 hw
->wiphy
->n_iface_combinations
=
365 ARRAY_SIZE(iwl_mvm_iface_combinations
);
367 hw
->wiphy
->max_remain_on_channel_duration
= 10000;
368 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
370 /* Extract MAC address */
371 memcpy(mvm
->addresses
[0].addr
, mvm
->nvm_data
->hw_addr
, ETH_ALEN
);
372 hw
->wiphy
->addresses
= mvm
->addresses
;
373 hw
->wiphy
->n_addresses
= 1;
375 /* Extract additional MAC addresses if available */
376 num_mac
= (mvm
->nvm_data
->n_hw_addrs
> 1) ?
377 min(IWL_MVM_MAX_ADDRESSES
, mvm
->nvm_data
->n_hw_addrs
) : 1;
379 for (i
= 1; i
< num_mac
; i
++) {
380 memcpy(mvm
->addresses
[i
].addr
, mvm
->addresses
[i
-1].addr
,
382 mvm
->addresses
[i
].addr
[5]++;
383 hw
->wiphy
->n_addresses
++;
386 iwl_mvm_reset_phy_ctxts(mvm
);
388 hw
->wiphy
->max_scan_ie_len
= iwl_mvm_max_scan_ie_len(mvm
);
390 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
392 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
393 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
394 &mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
];
395 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
396 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
397 &mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
];
399 hw
->wiphy
->hw_version
= mvm
->trans
->hw_id
;
401 if (iwlmvm_mod_params
.power_scheme
!= IWL_POWER_SCHEME_CAM
)
402 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
404 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
406 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_SCHED_SCAN
;
407 hw
->wiphy
->max_sched_scan_ssids
= PROBE_OPTION_MAX
;
408 hw
->wiphy
->max_match_sets
= IWL_SCAN_MAX_PROFILES
;
409 /* we create the 802.11 header and zero length SSID IE. */
410 hw
->wiphy
->max_sched_scan_ie_len
= SCAN_OFFLOAD_PROBE_REQ_SIZE
- 24 - 2;
412 hw
->wiphy
->features
|= NL80211_FEATURE_P2P_GO_CTWIN
|
413 NL80211_FEATURE_LOW_PRIORITY_SCAN
|
414 NL80211_FEATURE_P2P_GO_OPPPS
;
416 mvm
->rts_threshold
= IEEE80211_MAX_RTS_THRESHOLD
;
418 /* currently FW API supports only one optional cipher scheme */
419 if (mvm
->fw
->cs
[0].cipher
) {
420 mvm
->hw
->n_cipher_schemes
= 1;
421 mvm
->hw
->cipher_schemes
= &mvm
->fw
->cs
[0];
424 #ifdef CONFIG_PM_SLEEP
425 if (iwl_mvm_is_d0i3_supported(mvm
) &&
426 device_can_wakeup(mvm
->trans
->dev
)) {
427 mvm
->wowlan
.flags
= WIPHY_WOWLAN_ANY
;
428 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
429 } else if (mvm
->fw
->img
[IWL_UCODE_WOWLAN
].sec
[0].len
&&
430 mvm
->trans
->ops
->d3_suspend
&&
431 mvm
->trans
->ops
->d3_resume
&&
432 device_can_wakeup(mvm
->trans
->dev
)) {
433 mvm
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
434 WIPHY_WOWLAN_DISCONNECT
|
435 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
436 WIPHY_WOWLAN_RFKILL_RELEASE
;
437 if (!iwlwifi_mod_params
.sw_crypto
)
438 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
439 WIPHY_WOWLAN_GTK_REKEY_FAILURE
|
440 WIPHY_WOWLAN_4WAY_HANDSHAKE
;
442 mvm
->wowlan
.n_patterns
= IWL_WOWLAN_MAX_PATTERNS
;
443 mvm
->wowlan
.pattern_min_len
= IWL_WOWLAN_MIN_PATTERN_LEN
;
444 mvm
->wowlan
.pattern_max_len
= IWL_WOWLAN_MAX_PATTERN_LEN
;
445 mvm
->wowlan
.tcp
= &iwl_mvm_wowlan_tcp_support
;
446 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
450 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
451 /* assign default bcast filtering configuration */
452 mvm
->bcast_filters
= iwl_mvm_default_bcast_filters
;
455 ret
= iwl_mvm_leds_init(mvm
);
459 ret
= ieee80211_register_hw(mvm
->hw
);
461 iwl_mvm_leds_exit(mvm
);
466 static bool iwl_mvm_defer_tx(struct iwl_mvm
*mvm
,
467 struct ieee80211_sta
*sta
,
470 struct iwl_mvm_sta
*mvmsta
;
474 * double check the IN_D0I3 flag both before and after
475 * taking the spinlock, in order to prevent taking
476 * the spinlock when not needed.
478 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
)))
481 spin_lock(&mvm
->d0i3_tx_lock
);
483 * testing the flag again ensures the skb dequeue
484 * loop (on d0i3 exit) hasn't run yet.
486 if (!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
))
489 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
490 if (mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
||
491 mvmsta
->sta_id
!= mvm
->d0i3_ap_sta_id
)
494 __skb_queue_tail(&mvm
->d0i3_tx
, skb
);
495 ieee80211_stop_queues(mvm
->hw
);
498 iwl_mvm_ref(mvm
, IWL_MVM_REF_TX
);
499 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX
);
503 spin_unlock(&mvm
->d0i3_tx_lock
);
507 static void iwl_mvm_mac_tx(struct ieee80211_hw
*hw
,
508 struct ieee80211_tx_control
*control
,
511 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
512 struct ieee80211_sta
*sta
= control
->sta
;
513 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
514 struct ieee80211_hdr
*hdr
= (void *)skb
->data
;
516 if (iwl_mvm_is_radio_killed(mvm
)) {
517 IWL_DEBUG_DROP(mvm
, "Dropping - RF/CT KILL\n");
521 if (IEEE80211_SKB_CB(skb
)->hw_queue
== IWL_MVM_OFFCHANNEL_QUEUE
&&
522 !test_bit(IWL_MVM_STATUS_ROC_RUNNING
, &mvm
->status
))
525 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
526 if (unlikely(info
->flags
& IEEE80211_TX_CTL_NO_PS_BUFFER
&&
527 ieee80211_is_mgmt(hdr
->frame_control
) &&
528 !ieee80211_is_deauth(hdr
->frame_control
) &&
529 !ieee80211_is_disassoc(hdr
->frame_control
) &&
530 !ieee80211_is_action(hdr
->frame_control
)))
534 if (iwl_mvm_defer_tx(mvm
, sta
, skb
))
536 if (iwl_mvm_tx_skb(mvm
, skb
, sta
))
541 if (iwl_mvm_tx_skb_non_sta(mvm
, skb
))
545 ieee80211_free_txskb(hw
, skb
);
548 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg
*cfg
)
550 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
)
555 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg
*cfg
)
557 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
)
559 if (iwlwifi_mod_params
.disable_11n
& IWL_ENABLE_HT_TXAGG
)
562 /* enabled by default */
566 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw
*hw
,
567 struct ieee80211_vif
*vif
,
568 enum ieee80211_ampdu_mlme_action action
,
569 struct ieee80211_sta
*sta
, u16 tid
,
570 u16
*ssn
, u8 buf_size
)
572 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
574 bool tx_agg_ref
= false;
576 IWL_DEBUG_HT(mvm
, "A-MPDU action on addr %pM tid %d: action %d\n",
577 sta
->addr
, tid
, action
);
579 if (!(mvm
->nvm_data
->sku_cap_11n_enable
))
582 /* return from D0i3 before starting a new Tx aggregation */
584 case IEEE80211_AMPDU_TX_START
:
585 case IEEE80211_AMPDU_TX_STOP_CONT
:
586 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
587 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
588 case IEEE80211_AMPDU_TX_OPERATIONAL
:
590 * for tx start, wait synchronously until D0i3 exit to
591 * get the correct sequence number for the tid.
592 * additionally, some other ampdu actions use direct
593 * target access, which is not handled automatically
594 * by the trans layer (unlike commands), so wait for
595 * d0i3 exit in these cases as well.
597 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_TX_AGG
);
607 mutex_lock(&mvm
->mutex
);
610 case IEEE80211_AMPDU_RX_START
:
611 if (!iwl_enable_rx_ampdu(mvm
->cfg
)) {
615 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, *ssn
, true);
617 case IEEE80211_AMPDU_RX_STOP
:
618 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, 0, false);
620 case IEEE80211_AMPDU_TX_START
:
621 if (!iwl_enable_tx_ampdu(mvm
->cfg
)) {
625 ret
= iwl_mvm_sta_tx_agg_start(mvm
, vif
, sta
, tid
, ssn
);
627 case IEEE80211_AMPDU_TX_STOP_CONT
:
628 ret
= iwl_mvm_sta_tx_agg_stop(mvm
, vif
, sta
, tid
);
630 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
631 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
632 ret
= iwl_mvm_sta_tx_agg_flush(mvm
, vif
, sta
, tid
);
634 case IEEE80211_AMPDU_TX_OPERATIONAL
:
635 ret
= iwl_mvm_sta_tx_agg_oper(mvm
, vif
, sta
, tid
, buf_size
);
642 mutex_unlock(&mvm
->mutex
);
645 * If the tid is marked as started, we won't use it for offloaded
646 * traffic on the next D0i3 entry. It's safe to unref.
649 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX_AGG
);
654 static void iwl_mvm_cleanup_iterator(void *data
, u8
*mac
,
655 struct ieee80211_vif
*vif
)
657 struct iwl_mvm
*mvm
= data
;
658 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
660 mvmvif
->uploaded
= false;
661 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
663 /* does this make sense at all? */
666 spin_lock_bh(&mvm
->time_event_lock
);
667 iwl_mvm_te_clear_data(mvm
, &mvmvif
->time_event_data
);
668 spin_unlock_bh(&mvm
->time_event_lock
);
670 mvmvif
->phy_ctxt
= NULL
;
671 memset(&mvmvif
->bf_data
, 0, sizeof(mvmvif
->bf_data
));
674 #ifdef CONFIG_IWLWIFI_DEBUGFS
675 static void iwl_mvm_fw_error_dump(struct iwl_mvm
*mvm
)
677 struct iwl_fw_error_dump_file
*dump_file
;
678 struct iwl_fw_error_dump_data
*dump_data
;
679 struct iwl_fw_error_dump_info
*dump_info
;
680 struct iwl_mvm_dump_ptrs
*fw_error_dump
;
681 const struct fw_img
*img
;
682 u32 sram_len
, sram_ofs
;
683 u32 file_len
, rxf_len
;
687 lockdep_assert_held(&mvm
->mutex
);
689 if (mvm
->fw_error_dump
)
692 fw_error_dump
= kzalloc(sizeof(*mvm
->fw_error_dump
), GFP_KERNEL
);
696 img
= &mvm
->fw
->img
[mvm
->cur_ucode
];
697 sram_ofs
= img
->sec
[IWL_UCODE_SECTION_DATA
].offset
;
698 sram_len
= img
->sec
[IWL_UCODE_SECTION_DATA
].len
;
700 /* reading buffer size */
701 reg_val
= iwl_trans_read_prph(mvm
->trans
, RXF_SIZE_ADDR
);
702 rxf_len
= (reg_val
& RXF_SIZE_BYTE_CNT_MSK
) >> RXF_SIZE_BYTE_CND_POS
;
704 /* the register holds the value divided by 128 */
705 rxf_len
= rxf_len
<< 7;
707 file_len
= sizeof(*dump_file
) +
708 sizeof(*dump_data
) * 3 +
713 dump_file
= vzalloc(file_len
);
715 kfree(fw_error_dump
);
719 fw_error_dump
->op_mode_ptr
= dump_file
;
721 dump_file
->barker
= cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER
);
722 dump_data
= (void *)dump_file
->data
;
724 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO
);
725 dump_data
->len
= cpu_to_le32(sizeof(*dump_info
));
726 dump_info
= (void *) dump_data
->data
;
727 dump_info
->device_family
=
728 mvm
->cfg
->device_family
== IWL_DEVICE_FAMILY_7000
?
729 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7
) :
730 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8
);
731 memcpy(dump_info
->fw_human_readable
, mvm
->fw
->human_readable
,
732 sizeof(dump_info
->fw_human_readable
));
733 strncpy(dump_info
->dev_human_readable
, mvm
->cfg
->name
,
734 sizeof(dump_info
->dev_human_readable
));
735 strncpy(dump_info
->bus_human_readable
, mvm
->dev
->bus
->name
,
736 sizeof(dump_info
->bus_human_readable
));
738 dump_data
= iwl_fw_error_next_data(dump_data
);
739 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_RXF
);
740 dump_data
->len
= cpu_to_le32(rxf_len
);
742 if (iwl_trans_grab_nic_access(mvm
->trans
, false, &flags
)) {
743 u32
*rxf
= (void *)dump_data
->data
;
746 for (i
= 0; i
< (rxf_len
/ sizeof(u32
)); i
++) {
747 iwl_trans_write_prph(mvm
->trans
,
748 RXF_LD_FENCE_OFFSET_ADDR
,
750 rxf
[i
] = iwl_trans_read_prph(mvm
->trans
,
751 RXF_FIFO_RD_FENCE_ADDR
);
753 iwl_trans_release_nic_access(mvm
->trans
, &flags
);
756 dump_data
= iwl_fw_error_next_data(dump_data
);
757 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM
);
758 dump_data
->len
= cpu_to_le32(sram_len
);
759 iwl_trans_read_mem_bytes(mvm
->trans
, sram_ofs
, dump_data
->data
,
762 fw_error_dump
->trans_ptr
= iwl_trans_dump_data(mvm
->trans
);
763 fw_error_dump
->op_mode_len
= file_len
;
764 if (fw_error_dump
->trans_ptr
)
765 file_len
+= fw_error_dump
->trans_ptr
->len
;
766 dump_file
->file_len
= cpu_to_le32(file_len
);
767 mvm
->fw_error_dump
= fw_error_dump
;
771 static void iwl_mvm_restart_cleanup(struct iwl_mvm
*mvm
)
773 #ifdef CONFIG_IWLWIFI_DEBUGFS
774 static char *env
[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL
};
776 iwl_mvm_fw_error_dump(mvm
);
778 /* notify the userspace about the error we had */
779 kobject_uevent_env(&mvm
->hw
->wiphy
->dev
.kobj
, KOBJ_CHANGE
, env
);
782 iwl_trans_stop_device(mvm
->trans
);
784 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
786 /* just in case one was running */
787 ieee80211_remain_on_channel_expired(mvm
->hw
);
789 ieee80211_iterate_active_interfaces_atomic(
790 mvm
->hw
, IEEE80211_IFACE_ITER_RESUME_ALL
,
791 iwl_mvm_cleanup_iterator
, mvm
);
793 mvm
->p2p_device_vif
= NULL
;
794 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
796 iwl_mvm_reset_phy_ctxts(mvm
);
797 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
798 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
799 memset(&mvm
->last_bt_notif
, 0, sizeof(mvm
->last_bt_notif
));
800 memset(&mvm
->last_bt_notif_old
, 0, sizeof(mvm
->last_bt_notif_old
));
801 memset(&mvm
->last_bt_ci_cmd
, 0, sizeof(mvm
->last_bt_ci_cmd
));
802 memset(&mvm
->last_bt_ci_cmd_old
, 0, sizeof(mvm
->last_bt_ci_cmd_old
));
803 memset(&mvm
->bt_ack_kill_msk
, 0, sizeof(mvm
->bt_ack_kill_msk
));
804 memset(&mvm
->bt_cts_kill_msk
, 0, sizeof(mvm
->bt_cts_kill_msk
));
806 ieee80211_wake_queues(mvm
->hw
);
808 /* cleanup all stale references (scan, roc), but keep the
809 * ucode_down ref until reconfig is complete */
810 iwl_mvm_unref_all_except(mvm
, IWL_MVM_REF_UCODE_DOWN
);
813 mvm
->rx_ba_sessions
= 0;
816 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
818 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
821 mutex_lock(&mvm
->mutex
);
823 /* Clean up some internal and mac80211 state on restart */
824 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
825 iwl_mvm_restart_cleanup(mvm
);
827 ret
= iwl_mvm_up(mvm
);
829 if (ret
&& test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
830 /* Something went wrong - we need to finish some cleanup
831 * that normally iwl_mvm_mac_restart_complete() below
834 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
835 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
838 mutex_unlock(&mvm
->mutex
);
843 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw
*hw
)
845 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
848 mutex_lock(&mvm
->mutex
);
850 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
851 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
852 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
854 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
857 /* allow transport/FW low power modes */
858 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
860 mutex_unlock(&mvm
->mutex
);
863 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
865 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
867 flush_work(&mvm
->d0i3_exit_work
);
868 flush_work(&mvm
->async_handlers_wk
);
870 mutex_lock(&mvm
->mutex
);
872 /* disallow low power states when the FW is down */
873 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
875 /* async_handlers_wk is now blocked */
878 * The work item could be running or queued if the
879 * ROC time event stops just as we get here.
881 cancel_work_sync(&mvm
->roc_done_wk
);
883 iwl_trans_stop_device(mvm
->trans
);
885 iwl_mvm_async_handlers_purge(mvm
);
886 /* async_handlers_list is empty and will stay empty: HW is stopped */
888 /* the fw is stopped, the aux sta is dead: clean up driver state */
889 iwl_mvm_dealloc_int_sta(mvm
, &mvm
->aux_sta
);
891 mutex_unlock(&mvm
->mutex
);
894 * The worker might have been waiting for the mutex, let it run and
895 * discover that its list is now empty.
897 cancel_work_sync(&mvm
->async_handlers_wk
);
900 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
904 lockdep_assert_held(&mvm
->mutex
);
906 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
907 if (!mvm
->phy_ctxts
[i
].ref
)
908 return &mvm
->phy_ctxts
[i
];
910 IWL_ERR(mvm
, "No available PHY context\n");
914 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
917 /* FW is in charge of regulatory enforcement */
918 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd
= {
919 .mac_context_id
= iwl_mvm_vif_from_mac80211(vif
)->id
,
920 .pwr_restriction
= cpu_to_le16(tx_power
),
923 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, 0,
924 sizeof(reduce_txpwr_cmd
),
928 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
929 struct ieee80211_vif
*vif
)
931 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
932 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
936 * make sure D0i3 exit is completed, otherwise a target access
937 * during tx queue configuration could be done when still in
940 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_ADD_IF
);
945 * Not much to do here. The stack will not allow interface
946 * types or combinations that we didn't advertise, so we
947 * don't really have to check the types.
950 mutex_lock(&mvm
->mutex
);
952 /* Allocate resources for the MAC context, and add it to the fw */
953 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
957 /* Counting number of interfaces is needed for legacy PM */
958 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
962 * The AP binding flow can be done only after the beacon
963 * template is configured (which happens only in the mac80211
964 * start_ap() flow), and adding the broadcast station can happen
965 * only after the binding.
966 * In addition, since modifying the MAC before adding a bcast
967 * station is not allowed by the FW, delay the adding of MAC context to
968 * the point where we can also add the bcast station.
969 * In short: there's not much we can do at this point, other than
970 * allocating resources :)
972 if (vif
->type
== NL80211_IFTYPE_AP
||
973 vif
->type
== NL80211_IFTYPE_ADHOC
) {
974 u32 qmask
= iwl_mvm_mac_get_queues_mask(mvm
, vif
);
975 ret
= iwl_mvm_allocate_int_sta(mvm
, &mvmvif
->bcast_sta
,
977 ieee80211_vif_type_p2p(vif
));
979 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
983 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
987 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
991 ret
= iwl_mvm_power_update_mac(mvm
);
995 /* beacon filtering */
996 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
1000 if (!mvm
->bf_allowed_vif
&&
1001 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
) {
1002 mvm
->bf_allowed_vif
= mvmvif
;
1003 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
1004 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
1008 * P2P_DEVICE interface does not have a channel context assigned to it,
1009 * so a dedicated PHY context is allocated to it and the corresponding
1010 * MAC context is bound to it at this stage.
1012 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1014 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1015 if (!mvmvif
->phy_ctxt
) {
1020 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1021 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1025 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
, &mvmvif
->bcast_sta
);
1029 /* Save a pointer to p2p device vif, so it can later be used to
1030 * update the p2p device MAC when a GO is started/stopped */
1031 mvm
->p2p_device_vif
= vif
;
1034 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1038 iwl_mvm_binding_remove_vif(mvm
, vif
);
1040 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1042 if (mvm
->bf_allowed_vif
== mvmvif
) {
1043 mvm
->bf_allowed_vif
= NULL
;
1044 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1045 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1048 mvmvif
->phy_ctxt
= NULL
;
1049 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1051 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1054 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1056 mutex_unlock(&mvm
->mutex
);
1058 iwl_mvm_unref(mvm
, IWL_MVM_REF_ADD_IF
);
1063 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
1064 struct ieee80211_vif
*vif
)
1066 u32 tfd_msk
= 0, ac
;
1068 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++)
1069 if (vif
->hw_queue
[ac
] != IEEE80211_INVAL_HW_QUEUE
)
1070 tfd_msk
|= BIT(vif
->hw_queue
[ac
]);
1072 if (vif
->cab_queue
!= IEEE80211_INVAL_HW_QUEUE
)
1073 tfd_msk
|= BIT(vif
->cab_queue
);
1076 mutex_lock(&mvm
->mutex
);
1077 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, true);
1078 mutex_unlock(&mvm
->mutex
);
1081 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1083 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1084 * We assume here that all the packets sent to the OFFCHANNEL
1085 * queue are sent in ROC session.
1087 flush_work(&mvm
->roc_done_wk
);
1090 * By now, all the AC queues are empty. The AGG queues are
1091 * empty too. We already got all the Tx responses for all the
1092 * packets in the queues. The drain work can have been
1093 * triggered. Flush it.
1095 flush_work(&mvm
->sta_drained_wk
);
1099 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
1100 struct ieee80211_vif
*vif
)
1102 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1103 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1105 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1107 mutex_lock(&mvm
->mutex
);
1109 if (mvm
->bf_allowed_vif
== mvmvif
) {
1110 mvm
->bf_allowed_vif
= NULL
;
1111 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1112 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1115 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
1118 * For AP/GO interface, the tear down of the resources allocated to the
1119 * interface is be handled as part of the stop_ap flow.
1121 if (vif
->type
== NL80211_IFTYPE_AP
||
1122 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1123 #ifdef CONFIG_NL80211_TESTMODE
1124 if (vif
== mvm
->noa_vif
) {
1125 mvm
->noa_vif
= NULL
;
1126 mvm
->noa_duration
= 0;
1129 iwl_mvm_dealloc_int_sta(mvm
, &mvmvif
->bcast_sta
);
1133 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1134 mvm
->p2p_device_vif
= NULL
;
1135 iwl_mvm_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
1136 iwl_mvm_binding_remove_vif(mvm
, vif
);
1137 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1138 mvmvif
->phy_ctxt
= NULL
;
1141 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1144 iwl_mvm_power_update_mac(mvm
);
1145 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1148 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1149 mutex_unlock(&mvm
->mutex
);
1152 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
1157 struct iwl_mvm_mc_iter_data
{
1158 struct iwl_mvm
*mvm
;
1162 static void iwl_mvm_mc_iface_iterator(void *_data
, u8
*mac
,
1163 struct ieee80211_vif
*vif
)
1165 struct iwl_mvm_mc_iter_data
*data
= _data
;
1166 struct iwl_mvm
*mvm
= data
->mvm
;
1167 struct iwl_mcast_filter_cmd
*cmd
= mvm
->mcast_filter_cmd
;
1170 /* if we don't have free ports, mcast frames will be dropped */
1171 if (WARN_ON_ONCE(data
->port_id
>= MAX_PORT_ID_NUM
))
1174 if (vif
->type
!= NL80211_IFTYPE_STATION
||
1175 !vif
->bss_conf
.assoc
)
1178 cmd
->port_id
= data
->port_id
++;
1179 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
1180 len
= roundup(sizeof(*cmd
) + cmd
->count
* ETH_ALEN
, 4);
1182 ret
= iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_ASYNC
, len
, cmd
);
1184 IWL_ERR(mvm
, "mcast filter cmd error. ret=%d\n", ret
);
1187 static void iwl_mvm_recalc_multicast(struct iwl_mvm
*mvm
)
1189 struct iwl_mvm_mc_iter_data iter_data
= {
1193 lockdep_assert_held(&mvm
->mutex
);
1195 if (WARN_ON_ONCE(!mvm
->mcast_filter_cmd
))
1198 ieee80211_iterate_active_interfaces_atomic(
1199 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1200 iwl_mvm_mc_iface_iterator
, &iter_data
);
1203 static u64
iwl_mvm_prepare_multicast(struct ieee80211_hw
*hw
,
1204 struct netdev_hw_addr_list
*mc_list
)
1206 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1207 struct iwl_mcast_filter_cmd
*cmd
;
1208 struct netdev_hw_addr
*addr
;
1209 int addr_count
= netdev_hw_addr_list_count(mc_list
);
1210 bool pass_all
= false;
1213 if (addr_count
> MAX_MCAST_FILTERING_ADDRESSES
) {
1218 len
= roundup(sizeof(*cmd
) + addr_count
* ETH_ALEN
, 4);
1219 cmd
= kzalloc(len
, GFP_ATOMIC
);
1225 return (u64
)(unsigned long)cmd
;
1228 netdev_hw_addr_list_for_each(addr
, mc_list
) {
1229 IWL_DEBUG_MAC80211(mvm
, "mcast addr (%d): %pM\n",
1230 cmd
->count
, addr
->addr
);
1231 memcpy(&cmd
->addr_list
[cmd
->count
* ETH_ALEN
],
1232 addr
->addr
, ETH_ALEN
);
1236 return (u64
)(unsigned long)cmd
;
1239 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
1240 unsigned int changed_flags
,
1241 unsigned int *total_flags
,
1244 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1245 struct iwl_mcast_filter_cmd
*cmd
= (void *)(unsigned long)multicast
;
1247 mutex_lock(&mvm
->mutex
);
1249 /* replace previous configuration */
1250 kfree(mvm
->mcast_filter_cmd
);
1251 mvm
->mcast_filter_cmd
= cmd
;
1256 iwl_mvm_recalc_multicast(mvm
);
1258 mutex_unlock(&mvm
->mutex
);
1262 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1263 struct iwl_bcast_iter_data
{
1264 struct iwl_mvm
*mvm
;
1265 struct iwl_bcast_filter_cmd
*cmd
;
1270 iwl_mvm_set_bcast_filter(struct ieee80211_vif
*vif
,
1271 const struct iwl_fw_bcast_filter
*in_filter
,
1272 struct iwl_fw_bcast_filter
*out_filter
)
1274 struct iwl_fw_bcast_filter_attr
*attr
;
1277 memcpy(out_filter
, in_filter
, sizeof(*out_filter
));
1279 for (i
= 0; i
< ARRAY_SIZE(out_filter
->attrs
); i
++) {
1280 attr
= &out_filter
->attrs
[i
];
1285 switch (attr
->reserved1
) {
1286 case cpu_to_le16(BC_FILTER_MAGIC_IP
):
1287 if (vif
->bss_conf
.arp_addr_cnt
!= 1) {
1292 attr
->val
= vif
->bss_conf
.arp_addr_list
[0];
1294 case cpu_to_le16(BC_FILTER_MAGIC_MAC
):
1295 attr
->val
= *(__be32
*)&vif
->addr
[2];
1300 attr
->reserved1
= 0;
1301 out_filter
->num_attrs
++;
1305 static void iwl_mvm_bcast_filter_iterator(void *_data
, u8
*mac
,
1306 struct ieee80211_vif
*vif
)
1308 struct iwl_bcast_iter_data
*data
= _data
;
1309 struct iwl_mvm
*mvm
= data
->mvm
;
1310 struct iwl_bcast_filter_cmd
*cmd
= data
->cmd
;
1311 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1312 struct iwl_fw_bcast_mac
*bcast_mac
;
1315 if (WARN_ON(mvmvif
->id
>= ARRAY_SIZE(cmd
->macs
)))
1318 bcast_mac
= &cmd
->macs
[mvmvif
->id
];
1321 * enable filtering only for associated stations, but not for P2P
1324 if (vif
->type
!= NL80211_IFTYPE_STATION
|| vif
->p2p
||
1325 !vif
->bss_conf
.assoc
)
1328 bcast_mac
->default_discard
= 1;
1330 /* copy all configured filters */
1331 for (i
= 0; mvm
->bcast_filters
[i
].attrs
[0].mask
; i
++) {
1333 * Make sure we don't exceed our filters limit.
1334 * if there is still a valid filter to be configured,
1335 * be on the safe side and just allow bcast for this mac.
1337 if (WARN_ON_ONCE(data
->current_filter
>=
1338 ARRAY_SIZE(cmd
->filters
))) {
1339 bcast_mac
->default_discard
= 0;
1340 bcast_mac
->attached_filters
= 0;
1344 iwl_mvm_set_bcast_filter(vif
,
1345 &mvm
->bcast_filters
[i
],
1346 &cmd
->filters
[data
->current_filter
]);
1348 /* skip current filter if it contains no attributes */
1349 if (!cmd
->filters
[data
->current_filter
].num_attrs
)
1352 /* attach the filter to current mac */
1353 bcast_mac
->attached_filters
|=
1354 cpu_to_le16(BIT(data
->current_filter
));
1356 data
->current_filter
++;
1360 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm
*mvm
,
1361 struct iwl_bcast_filter_cmd
*cmd
)
1363 struct iwl_bcast_iter_data iter_data
= {
1368 memset(cmd
, 0, sizeof(*cmd
));
1369 cmd
->max_bcast_filters
= ARRAY_SIZE(cmd
->filters
);
1370 cmd
->max_macs
= ARRAY_SIZE(cmd
->macs
);
1372 #ifdef CONFIG_IWLWIFI_DEBUGFS
1373 /* use debugfs filters/macs if override is configured */
1374 if (mvm
->dbgfs_bcast_filtering
.override
) {
1375 memcpy(cmd
->filters
, &mvm
->dbgfs_bcast_filtering
.cmd
.filters
,
1376 sizeof(cmd
->filters
));
1377 memcpy(cmd
->macs
, &mvm
->dbgfs_bcast_filtering
.cmd
.macs
,
1383 /* if no filters are configured, do nothing */
1384 if (!mvm
->bcast_filters
)
1387 /* configure and attach these filters for each associated sta vif */
1388 ieee80211_iterate_active_interfaces(
1389 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1390 iwl_mvm_bcast_filter_iterator
, &iter_data
);
1394 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1395 struct ieee80211_vif
*vif
)
1397 struct iwl_bcast_filter_cmd cmd
;
1399 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BCAST_FILTERING
))
1402 if (!iwl_mvm_bcast_filter_build_cmd(mvm
, &cmd
))
1405 return iwl_mvm_send_cmd_pdu(mvm
, BCAST_FILTER_CMD
, 0,
1409 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1410 struct ieee80211_vif
*vif
)
1416 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
1417 struct ieee80211_vif
*vif
,
1418 struct ieee80211_bss_conf
*bss_conf
,
1421 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1425 * Re-calculate the tsf id, as the master-slave relations depend on the
1426 * beacon interval, which was not known when the station interface was
1429 if (changes
& BSS_CHANGED_ASSOC
&& bss_conf
->assoc
)
1430 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1432 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false);
1434 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1436 if (changes
& BSS_CHANGED_ASSOC
) {
1437 if (bss_conf
->assoc
) {
1438 /* add quota for this interface */
1439 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1441 IWL_ERR(mvm
, "failed to update quotas\n");
1445 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
1448 * If we're restarting then the firmware will
1449 * obviously have lost synchronisation with
1450 * the AP. It will attempt to synchronise by
1451 * itself, but we can make it more reliable by
1452 * scheduling a session protection time event.
1454 * The firmware needs to receive a beacon to
1455 * catch up with synchronisation, use 110% of
1456 * the beacon interval.
1458 * Set a large maximum delay to allow for more
1459 * than a single interface.
1461 u32 dur
= (11 * vif
->bss_conf
.beacon_int
) / 10;
1462 iwl_mvm_protect_session(mvm
, vif
, dur
, dur
,
1466 iwl_mvm_sf_update(mvm
, vif
, false);
1467 iwl_mvm_power_vif_assoc(mvm
, vif
);
1469 iwl_mvm_ref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1470 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_STATION_COUNT
) {
1472 * If update fails - SF might be running in associated
1473 * mode while disassociated - which is forbidden.
1475 WARN_ONCE(iwl_mvm_sf_update(mvm
, vif
, false),
1476 "Failed to update SF upon disassociation\n");
1478 /* remove AP station now that the MAC is unassoc */
1479 ret
= iwl_mvm_rm_sta_id(mvm
, vif
, mvmvif
->ap_sta_id
);
1481 IWL_ERR(mvm
, "failed to remove AP station\n");
1483 if (mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
1484 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1485 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
1486 /* remove quota for this interface */
1487 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1489 IWL_ERR(mvm
, "failed to update quotas\n");
1492 iwl_mvm_unref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1495 iwl_mvm_recalc_multicast(mvm
);
1496 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1498 /* reset rssi values */
1499 mvmvif
->bf_data
.ave_beacon_signal
= 0;
1501 iwl_mvm_bt_coex_vif_change(mvm
);
1502 iwl_mvm_update_smps(mvm
, vif
, IWL_MVM_SMPS_REQ_TT
,
1503 IEEE80211_SMPS_AUTOMATIC
);
1504 } else if (changes
& BSS_CHANGED_BEACON_INFO
) {
1506 * We received a beacon _after_ association so
1507 * remove the session protection.
1509 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1510 &mvmvif
->time_event_data
);
1511 } else if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_P2P_PS
|
1513 ret
= iwl_mvm_power_update_mac(mvm
);
1515 IWL_ERR(mvm
, "failed to update power mode\n");
1518 if (changes
& BSS_CHANGED_BEACON_INFO
) {
1519 iwl_mvm_sf_update(mvm
, vif
, false);
1520 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
1523 if (changes
& BSS_CHANGED_TXPOWER
) {
1524 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
1526 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
1529 if (changes
& BSS_CHANGED_CQM
) {
1530 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed\n");
1531 /* reset cqm events tracking */
1532 mvmvif
->bf_data
.last_cqm_event
= 0;
1533 if (mvmvif
->bf_data
.bf_enabled
) {
1534 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
1537 "failed to update CQM thresholds\n");
1541 if (changes
& BSS_CHANGED_ARP_FILTER
) {
1542 IWL_DEBUG_MAC80211(mvm
, "arp filter changed\n");
1543 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1547 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw
*hw
,
1548 struct ieee80211_vif
*vif
)
1550 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1551 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1555 * iwl_mvm_mac_ctxt_add() might read directly from the device
1556 * (the system time), so make sure it is available.
1558 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_START_AP
);
1562 mutex_lock(&mvm
->mutex
);
1564 /* Send the beacon template */
1565 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
1570 * Re-calculate the tsf id, as the master-slave relations depend on the
1571 * beacon interval, which was not known when the AP interface was added.
1573 if (vif
->type
== NL80211_IFTYPE_AP
)
1574 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1576 /* Add the mac context */
1577 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1581 /* Perform the binding */
1582 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1586 /* Send the bcast station. At this stage the TBTT and DTIM time events
1587 * are added and applied to the scheduler */
1588 ret
= iwl_mvm_send_bcast_sta(mvm
, vif
, &mvmvif
->bcast_sta
);
1592 /* must be set before quota calculations */
1593 mvmvif
->ap_ibss_active
= true;
1595 /* power updated needs to be done before quotas */
1596 iwl_mvm_power_update_mac(mvm
);
1598 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1600 goto out_quota_failed
;
1602 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1603 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1604 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false);
1606 iwl_mvm_ref(mvm
, IWL_MVM_REF_AP_IBSS
);
1608 iwl_mvm_bt_coex_vif_change(mvm
);
1610 mutex_unlock(&mvm
->mutex
);
1614 iwl_mvm_power_update_mac(mvm
);
1615 mvmvif
->ap_ibss_active
= false;
1616 iwl_mvm_send_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
1618 iwl_mvm_binding_remove_vif(mvm
, vif
);
1620 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1622 mutex_unlock(&mvm
->mutex
);
1623 iwl_mvm_unref(mvm
, IWL_MVM_REF_START_AP
);
1627 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw
*hw
,
1628 struct ieee80211_vif
*vif
)
1630 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1631 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1633 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1635 mutex_lock(&mvm
->mutex
);
1637 /* Handle AP stop while in CSA */
1638 if (rcu_access_pointer(mvm
->csa_vif
) == vif
) {
1639 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1640 &mvmvif
->time_event_data
);
1641 RCU_INIT_POINTER(mvm
->csa_vif
, NULL
);
1644 if (rcu_access_pointer(mvm
->csa_tx_blocked_vif
) == vif
) {
1645 RCU_INIT_POINTER(mvm
->csa_tx_blocked_vif
, NULL
);
1646 mvm
->csa_tx_block_bcn_timeout
= 0;
1649 mvmvif
->ap_ibss_active
= false;
1650 mvm
->ap_last_beacon_gp2
= 0;
1652 iwl_mvm_bt_coex_vif_change(mvm
);
1654 iwl_mvm_unref(mvm
, IWL_MVM_REF_AP_IBSS
);
1656 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1657 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1658 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false);
1660 iwl_mvm_update_quotas(mvm
, NULL
);
1661 iwl_mvm_send_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
1662 iwl_mvm_binding_remove_vif(mvm
, vif
);
1664 iwl_mvm_power_update_mac(mvm
);
1666 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1668 mutex_unlock(&mvm
->mutex
);
1672 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm
*mvm
,
1673 struct ieee80211_vif
*vif
,
1674 struct ieee80211_bss_conf
*bss_conf
,
1677 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1679 /* Changes will be applied when the AP/IBSS is started */
1680 if (!mvmvif
->ap_ibss_active
)
1683 if (changes
& (BSS_CHANGED_ERP_CTS_PROT
| BSS_CHANGED_HT
|
1684 BSS_CHANGED_BANDWIDTH
) &&
1685 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false))
1686 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1688 /* Need to send a new beacon template to the FW */
1689 if (changes
& BSS_CHANGED_BEACON
&&
1690 iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
1691 IWL_WARN(mvm
, "Failed updating beacon data\n");
1694 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
1695 struct ieee80211_vif
*vif
,
1696 struct ieee80211_bss_conf
*bss_conf
,
1699 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1702 * iwl_mvm_bss_info_changed_station() might call
1703 * iwl_mvm_protect_session(), which reads directly from
1704 * the device (the system time), so make sure it is available.
1706 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_BSS_CHANGED
))
1709 mutex_lock(&mvm
->mutex
);
1711 if (changes
& BSS_CHANGED_IDLE
&& !bss_conf
->idle
)
1712 iwl_mvm_scan_offload_stop(mvm
, true);
1714 switch (vif
->type
) {
1715 case NL80211_IFTYPE_STATION
:
1716 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
1718 case NL80211_IFTYPE_AP
:
1719 case NL80211_IFTYPE_ADHOC
:
1720 iwl_mvm_bss_info_changed_ap_ibss(mvm
, vif
, bss_conf
, changes
);
1723 /* shouldn't happen */
1727 mutex_unlock(&mvm
->mutex
);
1728 iwl_mvm_unref(mvm
, IWL_MVM_REF_BSS_CHANGED
);
1731 static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm
*mvm
,
1732 enum iwl_scan_status scan_type
)
1735 bool wait_for_handlers
= false;
1737 mutex_lock(&mvm
->mutex
);
1739 if (mvm
->scan_status
!= scan_type
) {
1741 /* make sure there are no pending notifications */
1742 wait_for_handlers
= true;
1746 switch (scan_type
) {
1747 case IWL_MVM_SCAN_SCHED
:
1748 ret
= iwl_mvm_scan_offload_stop(mvm
, true);
1750 case IWL_MVM_SCAN_OS
:
1751 ret
= iwl_mvm_cancel_scan(mvm
);
1753 case IWL_MVM_SCAN_NONE
:
1762 wait_for_handlers
= true;
1764 mutex_unlock(&mvm
->mutex
);
1766 /* make sure we consume the completion notification */
1767 if (wait_for_handlers
)
1768 iwl_mvm_wait_for_async_handlers(mvm
);
1772 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
1773 struct ieee80211_vif
*vif
,
1774 struct ieee80211_scan_request
*hw_req
)
1776 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1777 struct cfg80211_scan_request
*req
= &hw_req
->req
;
1780 if (req
->n_channels
== 0 ||
1781 req
->n_channels
> mvm
->fw
->ucode_capa
.n_scan_channels
)
1784 ret
= iwl_mvm_cancel_scan_wait_notif(mvm
, IWL_MVM_SCAN_SCHED
);
1788 mutex_lock(&mvm
->mutex
);
1790 if (mvm
->scan_status
!= IWL_MVM_SCAN_NONE
) {
1795 iwl_mvm_ref(mvm
, IWL_MVM_REF_SCAN
);
1797 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
)
1798 ret
= iwl_mvm_unified_scan_lmac(mvm
, vif
, hw_req
);
1800 ret
= iwl_mvm_scan_request(mvm
, vif
, req
);
1803 iwl_mvm_unref(mvm
, IWL_MVM_REF_SCAN
);
1805 mutex_unlock(&mvm
->mutex
);
1809 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
1810 struct ieee80211_vif
*vif
)
1812 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1814 mutex_lock(&mvm
->mutex
);
1816 iwl_mvm_cancel_scan(mvm
);
1818 mutex_unlock(&mvm
->mutex
);
1822 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
1823 struct ieee80211_sta
*sta
, u16 tids
,
1825 enum ieee80211_frame_release_type reason
,
1828 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1830 /* Called when we need to transmit (a) frame(s) from mac80211 */
1832 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
1833 tids
, more_data
, false);
1837 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw
*hw
,
1838 struct ieee80211_sta
*sta
, u16 tids
,
1840 enum ieee80211_frame_release_type reason
,
1843 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1845 /* Called when we need to transmit (a) frame(s) from agg queue */
1847 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
1848 tids
, more_data
, true);
1851 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
1852 struct ieee80211_vif
*vif
,
1853 enum sta_notify_cmd cmd
,
1854 struct ieee80211_sta
*sta
)
1856 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1857 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
1861 case STA_NOTIFY_SLEEP
:
1862 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
1863 ieee80211_sta_block_awake(hw
, sta
, true);
1864 spin_lock_bh(&mvmsta
->lock
);
1865 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
1866 struct iwl_mvm_tid_data
*tid_data
;
1868 tid_data
= &mvmsta
->tid_data
[tid
];
1869 if (tid_data
->state
!= IWL_AGG_ON
&&
1870 tid_data
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
1872 if (iwl_mvm_tid_queued(tid_data
) == 0)
1874 ieee80211_sta_set_buffered(sta
, tid
, true);
1876 spin_unlock_bh(&mvmsta
->lock
);
1878 * The fw updates the STA to be asleep. Tx packets on the Tx
1879 * queues to this station will not be transmitted. The fw will
1880 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1883 case STA_NOTIFY_AWAKE
:
1884 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
))
1886 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
1893 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw
*hw
,
1894 struct ieee80211_vif
*vif
,
1895 struct ieee80211_sta
*sta
)
1897 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1898 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
1901 * This is called before mac80211 does RCU synchronisation,
1902 * so here we already invalidate our internal RCU-protected
1903 * station pointer. The rest of the code will thus no longer
1904 * be able to find the station this way, and we don't rely
1905 * on further RCU synchronisation after the sta_state()
1906 * callback deleted the station.
1908 mutex_lock(&mvm
->mutex
);
1909 if (sta
== rcu_access_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
]))
1910 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
],
1912 mutex_unlock(&mvm
->mutex
);
1915 int iwl_mvm_tdls_sta_count(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
1917 struct ieee80211_sta
*sta
;
1918 struct iwl_mvm_sta
*mvmsta
;
1922 lockdep_assert_held(&mvm
->mutex
);
1924 for (i
= 0; i
< IWL_MVM_STATION_COUNT
; i
++) {
1925 sta
= rcu_dereference_protected(mvm
->fw_id_to_mac_id
[i
],
1926 lockdep_is_held(&mvm
->mutex
));
1927 if (!sta
|| IS_ERR(sta
) || !sta
->tdls
)
1931 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
1932 if (mvmsta
->vif
!= vif
)
1942 static void iwl_mvm_recalc_tdls_state(struct iwl_mvm
*mvm
,
1943 struct ieee80211_vif
*vif
,
1946 int tdls_sta_cnt
= iwl_mvm_tdls_sta_count(mvm
, vif
);
1949 * Disable ps when the first TDLS sta is added and re-enable it
1950 * when the last TDLS sta is removed
1952 if ((tdls_sta_cnt
== 1 && sta_added
) ||
1953 (tdls_sta_cnt
== 0 && !sta_added
))
1954 iwl_mvm_power_update_mac(mvm
);
1957 static void iwl_mvm_teardown_tdls_peers(struct iwl_mvm
*mvm
)
1959 struct ieee80211_sta
*sta
;
1960 struct iwl_mvm_sta
*mvmsta
;
1963 lockdep_assert_held(&mvm
->mutex
);
1965 for (i
= 0; i
< IWL_MVM_STATION_COUNT
; i
++) {
1966 sta
= rcu_dereference_protected(mvm
->fw_id_to_mac_id
[i
],
1967 lockdep_is_held(&mvm
->mutex
));
1968 if (!sta
|| IS_ERR(sta
) || !sta
->tdls
)
1971 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
1972 ieee80211_tdls_oper_request(mvmsta
->vif
, sta
->addr
,
1973 NL80211_TDLS_TEARDOWN
,
1974 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED
,
1979 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
1980 struct ieee80211_vif
*vif
,
1981 struct ieee80211_sta
*sta
,
1982 enum ieee80211_sta_state old_state
,
1983 enum ieee80211_sta_state new_state
)
1985 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1986 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1989 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
1990 sta
->addr
, old_state
, new_state
);
1992 /* this would be a mac80211 bug ... but don't crash */
1993 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
1996 /* if a STA is being removed, reuse its ID */
1997 flush_work(&mvm
->sta_drained_wk
);
1999 mutex_lock(&mvm
->mutex
);
2000 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2001 new_state
== IEEE80211_STA_NONE
) {
2003 * Firmware bug - it'll crash if the beacon interval is less
2004 * than 16. We can't avoid connecting at all, so refuse the
2005 * station state change, this will cause mac80211 to abandon
2006 * attempts to connect to this AP, and eventually wpa_s will
2007 * blacklist the AP...
2009 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2010 vif
->bss_conf
.beacon_int
< 16) {
2012 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2013 sta
->addr
, vif
->bss_conf
.beacon_int
);
2020 iwl_mvm_tdls_sta_count(mvm
, NULL
) ==
2021 IWL_MVM_TDLS_STA_COUNT
||
2022 iwl_mvm_phy_ctx_count(mvm
) > 1)) {
2023 IWL_DEBUG_MAC80211(mvm
, "refusing TDLS sta\n");
2028 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
2029 if (sta
->tdls
&& ret
== 0)
2030 iwl_mvm_recalc_tdls_state(mvm
, vif
, true);
2031 } else if (old_state
== IEEE80211_STA_NONE
&&
2032 new_state
== IEEE80211_STA_AUTH
) {
2034 * EBS may be disabled due to previous failures reported by FW.
2035 * Reset EBS status here assuming environment has been changed.
2037 mvm
->last_ebs_successful
= true;
2039 } else if (old_state
== IEEE80211_STA_AUTH
&&
2040 new_state
== IEEE80211_STA_ASSOC
) {
2041 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
2043 iwl_mvm_rs_rate_init(mvm
, sta
,
2044 mvmvif
->phy_ctxt
->channel
->band
,
2046 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2047 new_state
== IEEE80211_STA_AUTHORIZED
) {
2049 /* we don't support TDLS during DCM */
2050 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2051 iwl_mvm_teardown_tdls_peers(mvm
);
2053 /* enable beacon filtering */
2054 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
2056 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
2057 new_state
== IEEE80211_STA_ASSOC
) {
2058 /* disable beacon filtering */
2059 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
, 0));
2061 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2062 new_state
== IEEE80211_STA_AUTH
) {
2064 } else if (old_state
== IEEE80211_STA_AUTH
&&
2065 new_state
== IEEE80211_STA_NONE
) {
2067 } else if (old_state
== IEEE80211_STA_NONE
&&
2068 new_state
== IEEE80211_STA_NOTEXIST
) {
2069 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
2071 iwl_mvm_recalc_tdls_state(mvm
, vif
, false);
2076 mutex_unlock(&mvm
->mutex
);
2081 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
2083 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2085 mvm
->rts_threshold
= value
;
2090 static void iwl_mvm_sta_rc_update(struct ieee80211_hw
*hw
,
2091 struct ieee80211_vif
*vif
,
2092 struct ieee80211_sta
*sta
, u32 changed
)
2094 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2096 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2097 changed
& IEEE80211_RC_NSS_CHANGED
)
2098 iwl_mvm_sf_update(mvm
, vif
, false);
2101 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
2102 struct ieee80211_vif
*vif
, u16 ac
,
2103 const struct ieee80211_tx_queue_params
*params
)
2105 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2106 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2108 mvmvif
->queue_params
[ac
] = *params
;
2111 * No need to update right away, we'll get BSS_CHANGED_QOS
2112 * The exception is P2P_DEVICE interface which needs immediate update.
2114 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
2117 mutex_lock(&mvm
->mutex
);
2118 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false);
2119 mutex_unlock(&mvm
->mutex
);
2125 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
2126 struct ieee80211_vif
*vif
)
2128 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2129 u32 duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
,
2130 200 + vif
->bss_conf
.beacon_int
);
2131 u32 min_duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
,
2132 100 + vif
->bss_conf
.beacon_int
);
2134 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
2138 * iwl_mvm_protect_session() reads directly from the device
2139 * (the system time), so make sure it is available.
2141 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PREPARE_TX
))
2144 mutex_lock(&mvm
->mutex
);
2145 /* Try really hard to protect the session and hear a beacon */
2146 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
, 500);
2147 mutex_unlock(&mvm
->mutex
);
2149 iwl_mvm_unref(mvm
, IWL_MVM_REF_PREPARE_TX
);
2152 static void iwl_mvm_mac_mgd_protect_tdls_discover(struct ieee80211_hw
*hw
,
2153 struct ieee80211_vif
*vif
)
2155 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2156 u32 duration
= 2 * vif
->bss_conf
.dtim_period
* vif
->bss_conf
.beacon_int
;
2159 * iwl_mvm_protect_session() reads directly from the device
2160 * (the system time), so make sure it is available.
2162 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PROTECT_TDLS
))
2165 mutex_lock(&mvm
->mutex
);
2166 /* Protect the session to hear the TDLS setup response on the channel */
2167 iwl_mvm_protect_session(mvm
, vif
, duration
, duration
, 100);
2168 mutex_unlock(&mvm
->mutex
);
2170 iwl_mvm_unref(mvm
, IWL_MVM_REF_PROTECT_TDLS
);
2173 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw
*hw
,
2174 struct ieee80211_vif
*vif
,
2175 struct cfg80211_sched_scan_request
*req
,
2176 struct ieee80211_scan_ies
*ies
)
2178 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2181 ret
= iwl_mvm_cancel_scan_wait_notif(mvm
, IWL_MVM_SCAN_OS
);
2185 mutex_lock(&mvm
->mutex
);
2187 if (!iwl_mvm_is_idle(mvm
)) {
2192 if (mvm
->scan_status
!= IWL_MVM_SCAN_NONE
) {
2197 mvm
->scan_status
= IWL_MVM_SCAN_SCHED
;
2199 if (!(mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
)) {
2200 ret
= iwl_mvm_config_sched_scan(mvm
, vif
, req
, ies
);
2205 ret
= iwl_mvm_config_sched_scan_profiles(mvm
, req
);
2209 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
)
2210 ret
= iwl_mvm_unified_sched_scan_lmac(mvm
, vif
, req
, ies
);
2212 ret
= iwl_mvm_sched_scan_start(mvm
, req
);
2217 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
2219 mutex_unlock(&mvm
->mutex
);
2223 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw
*hw
,
2224 struct ieee80211_vif
*vif
)
2226 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2229 mutex_lock(&mvm
->mutex
);
2230 ret
= iwl_mvm_scan_offload_stop(mvm
, false);
2231 mutex_unlock(&mvm
->mutex
);
2232 iwl_mvm_wait_for_async_handlers(mvm
);
2237 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
2238 enum set_key_cmd cmd
,
2239 struct ieee80211_vif
*vif
,
2240 struct ieee80211_sta
*sta
,
2241 struct ieee80211_key_conf
*key
)
2243 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2246 if (iwlwifi_mod_params
.sw_crypto
) {
2247 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
2251 switch (key
->cipher
) {
2252 case WLAN_CIPHER_SUITE_TKIP
:
2253 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
2255 case WLAN_CIPHER_SUITE_CCMP
:
2256 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
2258 case WLAN_CIPHER_SUITE_AES_CMAC
:
2259 WARN_ON_ONCE(!(hw
->flags
& IEEE80211_HW_MFP_CAPABLE
));
2261 case WLAN_CIPHER_SUITE_WEP40
:
2262 case WLAN_CIPHER_SUITE_WEP104
:
2264 * Support for TX only, at least for now, so accept
2265 * the key and do nothing else. Then mac80211 will
2266 * pass it for TX but we don't have to use it for RX.
2270 /* currently FW supports only one optional cipher scheme */
2271 if (hw
->n_cipher_schemes
&&
2272 hw
->cipher_schemes
->cipher
== key
->cipher
)
2273 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2278 mutex_lock(&mvm
->mutex
);
2282 if ((vif
->type
== NL80211_IFTYPE_ADHOC
||
2283 vif
->type
== NL80211_IFTYPE_AP
) && !sta
) {
2285 * GTK on AP interface is a TX-only key, return 0;
2286 * on IBSS they're per-station and because we're lazy
2287 * we don't support them for RX, so do the same.
2290 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2294 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
2295 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, false);
2297 IWL_WARN(mvm
, "set key failed\n");
2299 * can't add key for RX, but we don't need it
2300 * in the device for TX so still return 0
2302 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2308 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2313 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
2314 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
2320 mutex_unlock(&mvm
->mutex
);
2324 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2325 struct ieee80211_vif
*vif
,
2326 struct ieee80211_key_conf
*keyconf
,
2327 struct ieee80211_sta
*sta
,
2328 u32 iv32
, u16
*phase1key
)
2330 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2332 if (keyconf
->hw_key_idx
== STA_KEY_IDX_INVALID
)
2335 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
2339 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data
*notif_wait
,
2340 struct iwl_rx_packet
*pkt
, void *data
)
2342 struct iwl_mvm
*mvm
=
2343 container_of(notif_wait
, struct iwl_mvm
, notif_wait
);
2344 struct iwl_hs20_roc_res
*resp
;
2345 int resp_len
= iwl_rx_packet_payload_len(pkt
);
2346 struct iwl_mvm_time_event_data
*te_data
= data
;
2348 if (WARN_ON(pkt
->hdr
.cmd
!= HOT_SPOT_CMD
))
2351 if (WARN_ON_ONCE(resp_len
!= sizeof(*resp
))) {
2352 IWL_ERR(mvm
, "Invalid HOT_SPOT_CMD response\n");
2356 resp
= (void *)pkt
->data
;
2359 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2360 resp
->status
, resp
->event_unique_id
);
2362 te_data
->uid
= le32_to_cpu(resp
->event_unique_id
);
2363 IWL_DEBUG_TE(mvm
, "TIME_EVENT_CMD response - UID = 0x%x\n",
2366 spin_lock_bh(&mvm
->time_event_lock
);
2367 list_add_tail(&te_data
->list
, &mvm
->aux_roc_te_list
);
2368 spin_unlock_bh(&mvm
->time_event_lock
);
2373 #define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2374 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm
*mvm
,
2375 struct ieee80211_channel
*channel
,
2376 struct ieee80211_vif
*vif
,
2379 int res
, time_reg
= DEVICE_SYSTEM_TIME_REG
;
2380 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2381 struct iwl_mvm_time_event_data
*te_data
= &mvmvif
->hs_time_event_data
;
2382 static const u8 time_event_response
[] = { HOT_SPOT_CMD
};
2383 struct iwl_notification_wait wait_time_event
;
2384 struct iwl_hs20_roc_req aux_roc_req
= {
2385 .action
= cpu_to_le32(FW_CTXT_ACTION_ADD
),
2387 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX
, 0)),
2388 .sta_id_and_color
= cpu_to_le32(mvm
->aux_sta
.sta_id
),
2389 /* Set the channel info data */
2390 .channel_info
.band
= (channel
->band
== IEEE80211_BAND_2GHZ
) ?
2391 PHY_BAND_24
: PHY_BAND_5
,
2392 .channel_info
.channel
= channel
->hw_value
,
2393 .channel_info
.width
= PHY_VHT_CHANNEL_MODE20
,
2394 /* Set the time and duration */
2395 .apply_time
= cpu_to_le32(iwl_read_prph(mvm
->trans
, time_reg
)),
2396 .apply_time_max_delay
=
2397 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL
)),
2398 .duration
= cpu_to_le32(MSEC_TO_TU(duration
)),
2401 /* Set the node address */
2402 memcpy(aux_roc_req
.node_addr
, vif
->addr
, ETH_ALEN
);
2405 te_data
->duration
= duration
;
2406 te_data
->id
= HOT_SPOT_CMD
;
2408 lockdep_assert_held(&mvm
->mutex
);
2410 spin_lock_bh(&mvm
->time_event_lock
);
2411 list_add_tail(&te_data
->list
, &mvm
->time_event_list
);
2412 spin_unlock_bh(&mvm
->time_event_lock
);
2415 * Use a notification wait, which really just processes the
2416 * command response and doesn't wait for anything, in order
2417 * to be able to process the response and get the UID inside
2418 * the RX path. Using CMD_WANT_SKB doesn't work because it
2419 * stores the buffer and then wakes up this thread, by which
2420 * time another notification (that the time event started)
2421 * might already be processed unsuccessfully.
2423 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_time_event
,
2424 time_event_response
,
2425 ARRAY_SIZE(time_event_response
),
2426 iwl_mvm_rx_aux_roc
, te_data
);
2428 res
= iwl_mvm_send_cmd_pdu(mvm
, HOT_SPOT_CMD
, 0, sizeof(aux_roc_req
),
2432 IWL_ERR(mvm
, "Couldn't send HOT_SPOT_CMD: %d\n", res
);
2433 iwl_remove_notification(&mvm
->notif_wait
, &wait_time_event
);
2437 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2438 res
= iwl_wait_notification(&mvm
->notif_wait
, &wait_time_event
, 1);
2439 /* should never fail */
2444 spin_lock_bh(&mvm
->time_event_lock
);
2445 iwl_mvm_te_clear_data(mvm
, te_data
);
2446 spin_unlock_bh(&mvm
->time_event_lock
);
2452 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
2453 struct ieee80211_vif
*vif
,
2454 struct ieee80211_channel
*channel
,
2456 enum ieee80211_roc_type type
)
2458 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2459 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2460 struct cfg80211_chan_def chandef
;
2461 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2464 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
2467 switch (vif
->type
) {
2468 case NL80211_IFTYPE_STATION
:
2469 /* Use aux roc framework (HS20) */
2470 ret
= iwl_mvm_send_aux_roc_cmd(mvm
, channel
,
2473 case NL80211_IFTYPE_P2P_DEVICE
:
2477 IWL_ERR(mvm
, "vif isn't P2P_DEVICE: %d\n", vif
->type
);
2481 mutex_lock(&mvm
->mutex
);
2483 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
2484 phy_ctxt
= &mvm
->phy_ctxts
[i
];
2485 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
2488 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
2490 * Unbind the P2P_DEVICE from the current PHY context,
2491 * and if the PHY context is not used remove it.
2493 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2494 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2497 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2499 /* Bind the P2P_DEVICE to the current PHY Context */
2500 mvmvif
->phy_ctxt
= phy_ctxt
;
2502 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2503 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2506 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2507 goto schedule_time_event
;
2511 /* Need to update the PHY context only if the ROC channel changed */
2512 if (channel
== mvmvif
->phy_ctxt
->channel
)
2513 goto schedule_time_event
;
2515 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
2518 * Change the PHY context configuration as it is currently referenced
2519 * only by the P2P Device MAC
2521 if (mvmvif
->phy_ctxt
->ref
== 1) {
2522 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
2528 * The PHY context is shared with other MACs. Need to remove the
2529 * P2P Device from the binding, allocate an new PHY context and
2530 * create a new binding
2532 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2538 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
2541 IWL_ERR(mvm
, "Failed to change PHY context\n");
2545 /* Unbind the P2P_DEVICE from the current PHY context */
2546 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2547 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2550 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2552 /* Bind the P2P_DEVICE to the new allocated PHY context */
2553 mvmvif
->phy_ctxt
= phy_ctxt
;
2555 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2556 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2559 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2562 schedule_time_event
:
2563 /* Schedule the time events */
2564 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
2567 mutex_unlock(&mvm
->mutex
);
2568 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2572 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
2574 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2576 IWL_DEBUG_MAC80211(mvm
, "enter\n");
2578 mutex_lock(&mvm
->mutex
);
2579 iwl_mvm_stop_p2p_roc(mvm
);
2580 mutex_unlock(&mvm
->mutex
);
2582 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2586 static int __iwl_mvm_add_chanctx(struct iwl_mvm
*mvm
,
2587 struct ieee80211_chanctx_conf
*ctx
)
2589 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2590 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2593 lockdep_assert_held(&mvm
->mutex
);
2595 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
2597 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2603 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2604 ctx
->rx_chains_static
,
2605 ctx
->rx_chains_dynamic
);
2607 IWL_ERR(mvm
, "Failed to add PHY context\n");
2611 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
2612 *phy_ctxt_id
= phy_ctxt
->id
;
2617 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
2618 struct ieee80211_chanctx_conf
*ctx
)
2620 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2623 mutex_lock(&mvm
->mutex
);
2624 ret
= __iwl_mvm_add_chanctx(mvm
, ctx
);
2625 mutex_unlock(&mvm
->mutex
);
2630 static void __iwl_mvm_remove_chanctx(struct iwl_mvm
*mvm
,
2631 struct ieee80211_chanctx_conf
*ctx
)
2633 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2634 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2636 lockdep_assert_held(&mvm
->mutex
);
2638 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
2641 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
2642 struct ieee80211_chanctx_conf
*ctx
)
2644 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2646 mutex_lock(&mvm
->mutex
);
2647 __iwl_mvm_remove_chanctx(mvm
, ctx
);
2648 mutex_unlock(&mvm
->mutex
);
2651 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
2652 struct ieee80211_chanctx_conf
*ctx
,
2655 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2656 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2657 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2659 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
2660 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
2661 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
2662 IEEE80211_CHANCTX_CHANGE_RADAR
|
2663 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH
)),
2664 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2665 phy_ctxt
->ref
, changed
))
2668 mutex_lock(&mvm
->mutex
);
2669 iwl_mvm_bt_coex_vif_change(mvm
);
2670 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2671 ctx
->rx_chains_static
,
2672 ctx
->rx_chains_dynamic
);
2673 mutex_unlock(&mvm
->mutex
);
2676 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm
*mvm
,
2677 struct ieee80211_vif
*vif
,
2678 struct ieee80211_chanctx_conf
*ctx
,
2679 bool switching_chanctx
)
2681 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2682 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2683 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2686 lockdep_assert_held(&mvm
->mutex
);
2688 mvmvif
->phy_ctxt
= phy_ctxt
;
2690 switch (vif
->type
) {
2691 case NL80211_IFTYPE_AP
:
2692 /* Unless it's a CSA flow we have nothing to do here */
2693 if (vif
->csa_active
) {
2694 mvmvif
->ap_ibss_active
= true;
2697 case NL80211_IFTYPE_ADHOC
:
2699 * The AP binding flow is handled as part of the start_ap flow
2700 * (in bss_info_changed), similarly for IBSS.
2704 case NL80211_IFTYPE_STATION
:
2705 case NL80211_IFTYPE_MONITOR
:
2712 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2717 * Power state must be updated before quotas,
2718 * otherwise fw will complain.
2720 iwl_mvm_power_update_mac(mvm
);
2722 /* Setting the quota at this stage is only required for monitor
2723 * interfaces. For the other types, the bss_info changed flow
2724 * will handle quota settings.
2726 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
2727 mvmvif
->monitor_active
= true;
2728 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
2730 goto out_remove_binding
;
2733 /* Handle binding during CSA */
2734 if ((vif
->type
== NL80211_IFTYPE_AP
) ||
2735 (switching_chanctx
&& (vif
->type
== NL80211_IFTYPE_STATION
))) {
2736 iwl_mvm_update_quotas(mvm
, NULL
);
2737 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false);
2743 iwl_mvm_binding_remove_vif(mvm
, vif
);
2744 iwl_mvm_power_update_mac(mvm
);
2747 mvmvif
->phy_ctxt
= NULL
;
2750 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
2751 struct ieee80211_vif
*vif
,
2752 struct ieee80211_chanctx_conf
*ctx
)
2754 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2757 mutex_lock(&mvm
->mutex
);
2758 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vif
, ctx
, false);
2759 mutex_unlock(&mvm
->mutex
);
2764 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm
*mvm
,
2765 struct ieee80211_vif
*vif
,
2766 struct ieee80211_chanctx_conf
*ctx
,
2767 bool switching_chanctx
)
2769 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2770 struct ieee80211_vif
*disabled_vif
= NULL
;
2772 lockdep_assert_held(&mvm
->mutex
);
2774 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
2776 switch (vif
->type
) {
2777 case NL80211_IFTYPE_ADHOC
:
2779 case NL80211_IFTYPE_MONITOR
:
2780 mvmvif
->monitor_active
= false;
2782 case NL80211_IFTYPE_AP
:
2783 /* This part is triggered only during CSA */
2784 if (!vif
->csa_active
|| !mvmvif
->ap_ibss_active
)
2787 /* Set CS bit on all the stations */
2788 iwl_mvm_modify_all_sta_disable_tx(mvm
, mvmvif
, true);
2790 /* Save blocked iface, the timeout is set on the next beacon */
2791 rcu_assign_pointer(mvm
->csa_tx_blocked_vif
, vif
);
2793 mvmvif
->ap_ibss_active
= false;
2795 case NL80211_IFTYPE_STATION
:
2796 if (!switching_chanctx
)
2801 iwl_mvm_mac_ctxt_changed(mvm
, vif
, true);
2807 iwl_mvm_update_quotas(mvm
, disabled_vif
);
2808 iwl_mvm_binding_remove_vif(mvm
, vif
);
2811 mvmvif
->phy_ctxt
= NULL
;
2812 iwl_mvm_power_update_mac(mvm
);
2815 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
2816 struct ieee80211_vif
*vif
,
2817 struct ieee80211_chanctx_conf
*ctx
)
2819 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2821 mutex_lock(&mvm
->mutex
);
2822 __iwl_mvm_unassign_vif_chanctx(mvm
, vif
, ctx
, false);
2823 mutex_unlock(&mvm
->mutex
);
2826 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw
*hw
,
2827 struct ieee80211_vif_chanctx_switch
*vifs
,
2829 enum ieee80211_chanctx_switch_mode mode
)
2831 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2834 /* we only support SWAP_CONTEXTS and with a single-vif right now */
2835 if (mode
!= CHANCTX_SWMODE_SWAP_CONTEXTS
|| n_vifs
> 1)
2838 mutex_lock(&mvm
->mutex
);
2839 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
2840 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].old_ctx
);
2842 ret
= __iwl_mvm_add_chanctx(mvm
, vifs
[0].new_ctx
);
2844 IWL_ERR(mvm
, "failed to add new_ctx during channel switch\n");
2848 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
2852 "failed to assign new_ctx during channel switch\n");
2859 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].new_ctx
);
2862 ret
= __iwl_mvm_add_chanctx(mvm
, vifs
[0].old_ctx
);
2864 IWL_ERR(mvm
, "failed to add old_ctx back after failure.\n");
2868 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
2871 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
2878 /* things keep failing, better restart the hw */
2879 iwl_mvm_nic_restart(mvm
, false);
2882 mutex_unlock(&mvm
->mutex
);
2886 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
2887 struct ieee80211_sta
*sta
,
2890 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2891 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
2893 if (!mvm_sta
|| !mvm_sta
->vif
) {
2894 IWL_ERR(mvm
, "Station is not associated to a vif\n");
2898 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
2901 #ifdef CONFIG_NL80211_TESTMODE
2902 static const struct nla_policy iwl_mvm_tm_policy
[IWL_MVM_TM_ATTR_MAX
+ 1] = {
2903 [IWL_MVM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
2904 [IWL_MVM_TM_ATTR_NOA_DURATION
] = { .type
= NLA_U32
},
2905 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
] = { .type
= NLA_U32
},
2908 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm
*mvm
,
2909 struct ieee80211_vif
*vif
,
2910 void *data
, int len
)
2912 struct nlattr
*tb
[IWL_MVM_TM_ATTR_MAX
+ 1];
2916 err
= nla_parse(tb
, IWL_MVM_TM_ATTR_MAX
, data
, len
, iwl_mvm_tm_policy
);
2920 if (!tb
[IWL_MVM_TM_ATTR_CMD
])
2923 switch (nla_get_u32(tb
[IWL_MVM_TM_ATTR_CMD
])) {
2924 case IWL_MVM_TM_CMD_SET_NOA
:
2925 if (!vif
|| vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
||
2926 !vif
->bss_conf
.enable_beacon
||
2927 !tb
[IWL_MVM_TM_ATTR_NOA_DURATION
])
2930 noa_duration
= nla_get_u32(tb
[IWL_MVM_TM_ATTR_NOA_DURATION
]);
2931 if (noa_duration
>= vif
->bss_conf
.beacon_int
)
2934 mvm
->noa_duration
= noa_duration
;
2937 return iwl_mvm_update_quotas(mvm
, NULL
);
2938 case IWL_MVM_TM_CMD_SET_BEACON_FILTER
:
2939 /* must be associated client vif - ignore authorized */
2940 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
||
2941 !vif
->bss_conf
.assoc
|| !vif
->bss_conf
.dtim_period
||
2942 !tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
])
2945 if (nla_get_u32(tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
]))
2946 return iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
2947 return iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
2953 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw
*hw
,
2954 struct ieee80211_vif
*vif
,
2955 void *data
, int len
)
2957 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2960 mutex_lock(&mvm
->mutex
);
2961 err
= __iwl_mvm_mac_testmode_cmd(mvm
, vif
, data
, len
);
2962 mutex_unlock(&mvm
->mutex
);
2968 static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw
*hw
,
2969 struct ieee80211_vif
*vif
,
2970 struct cfg80211_chan_def
*chandef
)
2972 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2973 struct ieee80211_vif
*csa_vif
;
2975 mutex_lock(&mvm
->mutex
);
2977 csa_vif
= rcu_dereference_protected(mvm
->csa_vif
,
2978 lockdep_is_held(&mvm
->mutex
));
2979 if (WARN(csa_vif
&& csa_vif
->csa_active
,
2980 "Another CSA is already in progress"))
2983 IWL_DEBUG_MAC80211(mvm
, "CSA started to freq %d\n",
2984 chandef
->center_freq1
);
2985 rcu_assign_pointer(mvm
->csa_vif
, vif
);
2988 mutex_unlock(&mvm
->mutex
);
2991 static void iwl_mvm_mac_flush(struct ieee80211_hw
*hw
,
2992 struct ieee80211_vif
*vif
, u32 queues
, bool drop
)
2994 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2995 struct iwl_mvm_vif
*mvmvif
;
2996 struct iwl_mvm_sta
*mvmsta
;
2998 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
)
3001 mutex_lock(&mvm
->mutex
);
3002 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3003 mvmsta
= iwl_mvm_sta_from_staid_protected(mvm
, mvmvif
->ap_sta_id
);
3005 if (WARN_ON_ONCE(!mvmsta
))
3009 if (iwl_mvm_flush_tx_path(mvm
, mvmsta
->tfd_queue_msk
, true))
3010 IWL_ERR(mvm
, "flush request fail\n");
3012 iwl_trans_wait_tx_queue_empty(mvm
->trans
,
3013 mvmsta
->tfd_queue_msk
);
3016 mutex_unlock(&mvm
->mutex
);
3019 const struct ieee80211_ops iwl_mvm_hw_ops
= {
3020 .tx
= iwl_mvm_mac_tx
,
3021 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
3022 .start
= iwl_mvm_mac_start
,
3023 .restart_complete
= iwl_mvm_mac_restart_complete
,
3024 .stop
= iwl_mvm_mac_stop
,
3025 .add_interface
= iwl_mvm_mac_add_interface
,
3026 .remove_interface
= iwl_mvm_mac_remove_interface
,
3027 .config
= iwl_mvm_mac_config
,
3028 .prepare_multicast
= iwl_mvm_prepare_multicast
,
3029 .configure_filter
= iwl_mvm_configure_filter
,
3030 .bss_info_changed
= iwl_mvm_bss_info_changed
,
3031 .hw_scan
= iwl_mvm_mac_hw_scan
,
3032 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
3033 .sta_pre_rcu_remove
= iwl_mvm_sta_pre_rcu_remove
,
3034 .sta_state
= iwl_mvm_mac_sta_state
,
3035 .sta_notify
= iwl_mvm_mac_sta_notify
,
3036 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
3037 .release_buffered_frames
= iwl_mvm_mac_release_buffered_frames
,
3038 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
3039 .sta_rc_update
= iwl_mvm_sta_rc_update
,
3040 .conf_tx
= iwl_mvm_mac_conf_tx
,
3041 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
3042 .mgd_protect_tdls_discover
= iwl_mvm_mac_mgd_protect_tdls_discover
,
3043 .flush
= iwl_mvm_mac_flush
,
3044 .sched_scan_start
= iwl_mvm_mac_sched_scan_start
,
3045 .sched_scan_stop
= iwl_mvm_mac_sched_scan_stop
,
3046 .set_key
= iwl_mvm_mac_set_key
,
3047 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
3048 .remain_on_channel
= iwl_mvm_roc
,
3049 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
3050 .add_chanctx
= iwl_mvm_add_chanctx
,
3051 .remove_chanctx
= iwl_mvm_remove_chanctx
,
3052 .change_chanctx
= iwl_mvm_change_chanctx
,
3053 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
3054 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
3055 .switch_vif_chanctx
= iwl_mvm_switch_vif_chanctx
,
3057 .start_ap
= iwl_mvm_start_ap_ibss
,
3058 .stop_ap
= iwl_mvm_stop_ap_ibss
,
3059 .join_ibss
= iwl_mvm_start_ap_ibss
,
3060 .leave_ibss
= iwl_mvm_stop_ap_ibss
,
3062 .set_tim
= iwl_mvm_set_tim
,
3064 .channel_switch_beacon
= iwl_mvm_channel_switch_beacon
,
3066 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd
)
3068 #ifdef CONFIG_PM_SLEEP
3070 .suspend
= iwl_mvm_suspend
,
3071 .resume
= iwl_mvm_resume
,
3072 .set_wakeup
= iwl_mvm_set_wakeup
,
3073 .set_rekey_data
= iwl_mvm_set_rekey_data
,
3074 #if IS_ENABLED(CONFIG_IPV6)
3075 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
3077 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,