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
;
673 #ifdef CONFIG_IWLWIFI_DEBUGFS
674 static void iwl_mvm_fw_error_dump(struct iwl_mvm
*mvm
)
676 struct iwl_fw_error_dump_file
*dump_file
;
677 struct iwl_fw_error_dump_data
*dump_data
;
678 struct iwl_fw_error_dump_info
*dump_info
;
679 struct iwl_mvm_dump_ptrs
*fw_error_dump
;
680 const struct fw_img
*img
;
681 u32 sram_len
, sram_ofs
;
682 u32 file_len
, rxf_len
;
686 lockdep_assert_held(&mvm
->mutex
);
688 if (mvm
->fw_error_dump
)
691 fw_error_dump
= kzalloc(sizeof(*mvm
->fw_error_dump
), GFP_KERNEL
);
695 img
= &mvm
->fw
->img
[mvm
->cur_ucode
];
696 sram_ofs
= img
->sec
[IWL_UCODE_SECTION_DATA
].offset
;
697 sram_len
= img
->sec
[IWL_UCODE_SECTION_DATA
].len
;
699 /* reading buffer size */
700 reg_val
= iwl_trans_read_prph(mvm
->trans
, RXF_SIZE_ADDR
);
701 rxf_len
= (reg_val
& RXF_SIZE_BYTE_CNT_MSK
) >> RXF_SIZE_BYTE_CND_POS
;
703 /* the register holds the value divided by 128 */
704 rxf_len
= rxf_len
<< 7;
706 file_len
= sizeof(*dump_file
) +
707 sizeof(*dump_data
) * 3 +
712 dump_file
= vzalloc(file_len
);
714 kfree(fw_error_dump
);
718 fw_error_dump
->op_mode_ptr
= dump_file
;
720 dump_file
->barker
= cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER
);
721 dump_data
= (void *)dump_file
->data
;
723 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO
);
724 dump_data
->len
= cpu_to_le32(sizeof(*dump_info
));
725 dump_info
= (void *) dump_data
->data
;
726 dump_info
->device_family
=
727 mvm
->cfg
->device_family
== IWL_DEVICE_FAMILY_7000
?
728 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7
) :
729 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8
);
730 memcpy(dump_info
->fw_human_readable
, mvm
->fw
->human_readable
,
731 sizeof(dump_info
->fw_human_readable
));
732 strncpy(dump_info
->dev_human_readable
, mvm
->cfg
->name
,
733 sizeof(dump_info
->dev_human_readable
));
734 strncpy(dump_info
->bus_human_readable
, mvm
->dev
->bus
->name
,
735 sizeof(dump_info
->bus_human_readable
));
737 dump_data
= iwl_fw_error_next_data(dump_data
);
738 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_RXF
);
739 dump_data
->len
= cpu_to_le32(rxf_len
);
741 if (iwl_trans_grab_nic_access(mvm
->trans
, false, &flags
)) {
742 u32
*rxf
= (void *)dump_data
->data
;
745 for (i
= 0; i
< (rxf_len
/ sizeof(u32
)); i
++) {
746 iwl_trans_write_prph(mvm
->trans
,
747 RXF_LD_FENCE_OFFSET_ADDR
,
749 rxf
[i
] = iwl_trans_read_prph(mvm
->trans
,
750 RXF_FIFO_RD_FENCE_ADDR
);
752 iwl_trans_release_nic_access(mvm
->trans
, &flags
);
755 dump_data
= iwl_fw_error_next_data(dump_data
);
756 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM
);
757 dump_data
->len
= cpu_to_le32(sram_len
);
758 iwl_trans_read_mem_bytes(mvm
->trans
, sram_ofs
, dump_data
->data
,
761 fw_error_dump
->trans_ptr
= iwl_trans_dump_data(mvm
->trans
);
762 fw_error_dump
->op_mode_len
= file_len
;
763 if (fw_error_dump
->trans_ptr
)
764 file_len
+= fw_error_dump
->trans_ptr
->len
;
765 dump_file
->file_len
= cpu_to_le32(file_len
);
766 mvm
->fw_error_dump
= fw_error_dump
;
770 static void iwl_mvm_restart_cleanup(struct iwl_mvm
*mvm
)
772 #ifdef CONFIG_IWLWIFI_DEBUGFS
773 static char *env
[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL
};
775 iwl_mvm_fw_error_dump(mvm
);
777 /* notify the userspace about the error we had */
778 kobject_uevent_env(&mvm
->hw
->wiphy
->dev
.kobj
, KOBJ_CHANGE
, env
);
781 iwl_trans_stop_device(mvm
->trans
);
783 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
785 /* just in case one was running */
786 ieee80211_remain_on_channel_expired(mvm
->hw
);
788 ieee80211_iterate_active_interfaces_atomic(
789 mvm
->hw
, IEEE80211_IFACE_ITER_RESUME_ALL
,
790 iwl_mvm_cleanup_iterator
, mvm
);
792 mvm
->p2p_device_vif
= NULL
;
793 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
795 iwl_mvm_reset_phy_ctxts(mvm
);
796 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
797 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
799 ieee80211_wake_queues(mvm
->hw
);
801 /* cleanup all stale references (scan, roc), but keep the
802 * ucode_down ref until reconfig is complete */
803 iwl_mvm_unref_all_except(mvm
, IWL_MVM_REF_UCODE_DOWN
);
806 mvm
->rx_ba_sessions
= 0;
809 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
811 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
814 mutex_lock(&mvm
->mutex
);
816 /* Clean up some internal and mac80211 state on restart */
817 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
818 iwl_mvm_restart_cleanup(mvm
);
820 ret
= iwl_mvm_up(mvm
);
822 if (ret
&& test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
823 /* Something went wrong - we need to finish some cleanup
824 * that normally iwl_mvm_mac_restart_complete() below
827 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
828 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
831 mutex_unlock(&mvm
->mutex
);
836 static void iwl_mvm_mac_restart_complete(struct ieee80211_hw
*hw
)
838 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
841 mutex_lock(&mvm
->mutex
);
843 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
844 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
845 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
847 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
850 /* allow transport/FW low power modes */
851 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
853 mutex_unlock(&mvm
->mutex
);
856 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
858 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
860 flush_work(&mvm
->d0i3_exit_work
);
861 flush_work(&mvm
->async_handlers_wk
);
863 mutex_lock(&mvm
->mutex
);
865 /* disallow low power states when the FW is down */
866 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
868 /* async_handlers_wk is now blocked */
871 * The work item could be running or queued if the
872 * ROC time event stops just as we get here.
874 cancel_work_sync(&mvm
->roc_done_wk
);
876 iwl_trans_stop_device(mvm
->trans
);
878 iwl_mvm_async_handlers_purge(mvm
);
879 /* async_handlers_list is empty and will stay empty: HW is stopped */
881 /* the fw is stopped, the aux sta is dead: clean up driver state */
882 iwl_mvm_dealloc_int_sta(mvm
, &mvm
->aux_sta
);
884 mutex_unlock(&mvm
->mutex
);
887 * The worker might have been waiting for the mutex, let it run and
888 * discover that its list is now empty.
890 cancel_work_sync(&mvm
->async_handlers_wk
);
893 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
897 lockdep_assert_held(&mvm
->mutex
);
899 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
900 if (!mvm
->phy_ctxts
[i
].ref
)
901 return &mvm
->phy_ctxts
[i
];
903 IWL_ERR(mvm
, "No available PHY context\n");
907 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
910 /* FW is in charge of regulatory enforcement */
911 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd
= {
912 .mac_context_id
= iwl_mvm_vif_from_mac80211(vif
)->id
,
913 .pwr_restriction
= cpu_to_le16(tx_power
),
916 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, 0,
917 sizeof(reduce_txpwr_cmd
),
921 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
922 struct ieee80211_vif
*vif
)
924 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
925 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
929 * make sure D0i3 exit is completed, otherwise a target access
930 * during tx queue configuration could be done when still in
933 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_ADD_IF
);
938 * Not much to do here. The stack will not allow interface
939 * types or combinations that we didn't advertise, so we
940 * don't really have to check the types.
943 mutex_lock(&mvm
->mutex
);
945 /* Allocate resources for the MAC context, and add it to the fw */
946 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
950 /* Counting number of interfaces is needed for legacy PM */
951 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
955 * The AP binding flow can be done only after the beacon
956 * template is configured (which happens only in the mac80211
957 * start_ap() flow), and adding the broadcast station can happen
958 * only after the binding.
959 * In addition, since modifying the MAC before adding a bcast
960 * station is not allowed by the FW, delay the adding of MAC context to
961 * the point where we can also add the bcast station.
962 * In short: there's not much we can do at this point, other than
963 * allocating resources :)
965 if (vif
->type
== NL80211_IFTYPE_AP
||
966 vif
->type
== NL80211_IFTYPE_ADHOC
) {
967 u32 qmask
= iwl_mvm_mac_get_queues_mask(mvm
, vif
);
968 ret
= iwl_mvm_allocate_int_sta(mvm
, &mvmvif
->bcast_sta
,
970 ieee80211_vif_type_p2p(vif
));
972 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
976 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
980 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
984 ret
= iwl_mvm_power_update_mac(mvm
);
988 /* beacon filtering */
989 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
993 if (!mvm
->bf_allowed_vif
&&
994 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
) {
995 mvm
->bf_allowed_vif
= mvmvif
;
996 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
997 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
1001 * P2P_DEVICE interface does not have a channel context assigned to it,
1002 * so a dedicated PHY context is allocated to it and the corresponding
1003 * MAC context is bound to it at this stage.
1005 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1007 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1008 if (!mvmvif
->phy_ctxt
) {
1013 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1014 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1018 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
, &mvmvif
->bcast_sta
);
1022 /* Save a pointer to p2p device vif, so it can later be used to
1023 * update the p2p device MAC when a GO is started/stopped */
1024 mvm
->p2p_device_vif
= vif
;
1027 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1031 iwl_mvm_binding_remove_vif(mvm
, vif
);
1033 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1035 if (mvm
->bf_allowed_vif
== mvmvif
) {
1036 mvm
->bf_allowed_vif
= NULL
;
1037 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1038 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1041 mvmvif
->phy_ctxt
= NULL
;
1042 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1044 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1047 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1049 mutex_unlock(&mvm
->mutex
);
1051 iwl_mvm_unref(mvm
, IWL_MVM_REF_ADD_IF
);
1056 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
1057 struct ieee80211_vif
*vif
)
1059 u32 tfd_msk
= 0, ac
;
1061 for (ac
= 0; ac
< IEEE80211_NUM_ACS
; ac
++)
1062 if (vif
->hw_queue
[ac
] != IEEE80211_INVAL_HW_QUEUE
)
1063 tfd_msk
|= BIT(vif
->hw_queue
[ac
]);
1065 if (vif
->cab_queue
!= IEEE80211_INVAL_HW_QUEUE
)
1066 tfd_msk
|= BIT(vif
->cab_queue
);
1069 mutex_lock(&mvm
->mutex
);
1070 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, true);
1071 mutex_unlock(&mvm
->mutex
);
1074 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1076 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1077 * We assume here that all the packets sent to the OFFCHANNEL
1078 * queue are sent in ROC session.
1080 flush_work(&mvm
->roc_done_wk
);
1083 * By now, all the AC queues are empty. The AGG queues are
1084 * empty too. We already got all the Tx responses for all the
1085 * packets in the queues. The drain work can have been
1086 * triggered. Flush it.
1088 flush_work(&mvm
->sta_drained_wk
);
1092 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
1093 struct ieee80211_vif
*vif
)
1095 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1096 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1098 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1100 mutex_lock(&mvm
->mutex
);
1102 if (mvm
->bf_allowed_vif
== mvmvif
) {
1103 mvm
->bf_allowed_vif
= NULL
;
1104 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1105 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1108 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
1111 * For AP/GO interface, the tear down of the resources allocated to the
1112 * interface is be handled as part of the stop_ap flow.
1114 if (vif
->type
== NL80211_IFTYPE_AP
||
1115 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1116 #ifdef CONFIG_NL80211_TESTMODE
1117 if (vif
== mvm
->noa_vif
) {
1118 mvm
->noa_vif
= NULL
;
1119 mvm
->noa_duration
= 0;
1122 iwl_mvm_dealloc_int_sta(mvm
, &mvmvif
->bcast_sta
);
1126 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1127 mvm
->p2p_device_vif
= NULL
;
1128 iwl_mvm_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
1129 iwl_mvm_binding_remove_vif(mvm
, vif
);
1130 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1131 mvmvif
->phy_ctxt
= NULL
;
1134 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1137 iwl_mvm_power_update_mac(mvm
);
1138 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1141 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1142 mutex_unlock(&mvm
->mutex
);
1145 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
1150 struct iwl_mvm_mc_iter_data
{
1151 struct iwl_mvm
*mvm
;
1155 static void iwl_mvm_mc_iface_iterator(void *_data
, u8
*mac
,
1156 struct ieee80211_vif
*vif
)
1158 struct iwl_mvm_mc_iter_data
*data
= _data
;
1159 struct iwl_mvm
*mvm
= data
->mvm
;
1160 struct iwl_mcast_filter_cmd
*cmd
= mvm
->mcast_filter_cmd
;
1163 /* if we don't have free ports, mcast frames will be dropped */
1164 if (WARN_ON_ONCE(data
->port_id
>= MAX_PORT_ID_NUM
))
1167 if (vif
->type
!= NL80211_IFTYPE_STATION
||
1168 !vif
->bss_conf
.assoc
)
1171 cmd
->port_id
= data
->port_id
++;
1172 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
1173 len
= roundup(sizeof(*cmd
) + cmd
->count
* ETH_ALEN
, 4);
1175 ret
= iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_ASYNC
, len
, cmd
);
1177 IWL_ERR(mvm
, "mcast filter cmd error. ret=%d\n", ret
);
1180 static void iwl_mvm_recalc_multicast(struct iwl_mvm
*mvm
)
1182 struct iwl_mvm_mc_iter_data iter_data
= {
1186 lockdep_assert_held(&mvm
->mutex
);
1188 if (WARN_ON_ONCE(!mvm
->mcast_filter_cmd
))
1191 ieee80211_iterate_active_interfaces_atomic(
1192 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1193 iwl_mvm_mc_iface_iterator
, &iter_data
);
1196 static u64
iwl_mvm_prepare_multicast(struct ieee80211_hw
*hw
,
1197 struct netdev_hw_addr_list
*mc_list
)
1199 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1200 struct iwl_mcast_filter_cmd
*cmd
;
1201 struct netdev_hw_addr
*addr
;
1202 int addr_count
= netdev_hw_addr_list_count(mc_list
);
1203 bool pass_all
= false;
1206 if (addr_count
> MAX_MCAST_FILTERING_ADDRESSES
) {
1211 len
= roundup(sizeof(*cmd
) + addr_count
* ETH_ALEN
, 4);
1212 cmd
= kzalloc(len
, GFP_ATOMIC
);
1218 return (u64
)(unsigned long)cmd
;
1221 netdev_hw_addr_list_for_each(addr
, mc_list
) {
1222 IWL_DEBUG_MAC80211(mvm
, "mcast addr (%d): %pM\n",
1223 cmd
->count
, addr
->addr
);
1224 memcpy(&cmd
->addr_list
[cmd
->count
* ETH_ALEN
],
1225 addr
->addr
, ETH_ALEN
);
1229 return (u64
)(unsigned long)cmd
;
1232 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
1233 unsigned int changed_flags
,
1234 unsigned int *total_flags
,
1237 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1238 struct iwl_mcast_filter_cmd
*cmd
= (void *)(unsigned long)multicast
;
1240 mutex_lock(&mvm
->mutex
);
1242 /* replace previous configuration */
1243 kfree(mvm
->mcast_filter_cmd
);
1244 mvm
->mcast_filter_cmd
= cmd
;
1249 iwl_mvm_recalc_multicast(mvm
);
1251 mutex_unlock(&mvm
->mutex
);
1255 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1256 struct iwl_bcast_iter_data
{
1257 struct iwl_mvm
*mvm
;
1258 struct iwl_bcast_filter_cmd
*cmd
;
1263 iwl_mvm_set_bcast_filter(struct ieee80211_vif
*vif
,
1264 const struct iwl_fw_bcast_filter
*in_filter
,
1265 struct iwl_fw_bcast_filter
*out_filter
)
1267 struct iwl_fw_bcast_filter_attr
*attr
;
1270 memcpy(out_filter
, in_filter
, sizeof(*out_filter
));
1272 for (i
= 0; i
< ARRAY_SIZE(out_filter
->attrs
); i
++) {
1273 attr
= &out_filter
->attrs
[i
];
1278 switch (attr
->reserved1
) {
1279 case cpu_to_le16(BC_FILTER_MAGIC_IP
):
1280 if (vif
->bss_conf
.arp_addr_cnt
!= 1) {
1285 attr
->val
= vif
->bss_conf
.arp_addr_list
[0];
1287 case cpu_to_le16(BC_FILTER_MAGIC_MAC
):
1288 attr
->val
= *(__be32
*)&vif
->addr
[2];
1293 attr
->reserved1
= 0;
1294 out_filter
->num_attrs
++;
1298 static void iwl_mvm_bcast_filter_iterator(void *_data
, u8
*mac
,
1299 struct ieee80211_vif
*vif
)
1301 struct iwl_bcast_iter_data
*data
= _data
;
1302 struct iwl_mvm
*mvm
= data
->mvm
;
1303 struct iwl_bcast_filter_cmd
*cmd
= data
->cmd
;
1304 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1305 struct iwl_fw_bcast_mac
*bcast_mac
;
1308 if (WARN_ON(mvmvif
->id
>= ARRAY_SIZE(cmd
->macs
)))
1311 bcast_mac
= &cmd
->macs
[mvmvif
->id
];
1314 * enable filtering only for associated stations, but not for P2P
1317 if (vif
->type
!= NL80211_IFTYPE_STATION
|| vif
->p2p
||
1318 !vif
->bss_conf
.assoc
)
1321 bcast_mac
->default_discard
= 1;
1323 /* copy all configured filters */
1324 for (i
= 0; mvm
->bcast_filters
[i
].attrs
[0].mask
; i
++) {
1326 * Make sure we don't exceed our filters limit.
1327 * if there is still a valid filter to be configured,
1328 * be on the safe side and just allow bcast for this mac.
1330 if (WARN_ON_ONCE(data
->current_filter
>=
1331 ARRAY_SIZE(cmd
->filters
))) {
1332 bcast_mac
->default_discard
= 0;
1333 bcast_mac
->attached_filters
= 0;
1337 iwl_mvm_set_bcast_filter(vif
,
1338 &mvm
->bcast_filters
[i
],
1339 &cmd
->filters
[data
->current_filter
]);
1341 /* skip current filter if it contains no attributes */
1342 if (!cmd
->filters
[data
->current_filter
].num_attrs
)
1345 /* attach the filter to current mac */
1346 bcast_mac
->attached_filters
|=
1347 cpu_to_le16(BIT(data
->current_filter
));
1349 data
->current_filter
++;
1353 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm
*mvm
,
1354 struct iwl_bcast_filter_cmd
*cmd
)
1356 struct iwl_bcast_iter_data iter_data
= {
1361 memset(cmd
, 0, sizeof(*cmd
));
1362 cmd
->max_bcast_filters
= ARRAY_SIZE(cmd
->filters
);
1363 cmd
->max_macs
= ARRAY_SIZE(cmd
->macs
);
1365 #ifdef CONFIG_IWLWIFI_DEBUGFS
1366 /* use debugfs filters/macs if override is configured */
1367 if (mvm
->dbgfs_bcast_filtering
.override
) {
1368 memcpy(cmd
->filters
, &mvm
->dbgfs_bcast_filtering
.cmd
.filters
,
1369 sizeof(cmd
->filters
));
1370 memcpy(cmd
->macs
, &mvm
->dbgfs_bcast_filtering
.cmd
.macs
,
1376 /* if no filters are configured, do nothing */
1377 if (!mvm
->bcast_filters
)
1380 /* configure and attach these filters for each associated sta vif */
1381 ieee80211_iterate_active_interfaces(
1382 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1383 iwl_mvm_bcast_filter_iterator
, &iter_data
);
1387 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1388 struct ieee80211_vif
*vif
)
1390 struct iwl_bcast_filter_cmd cmd
;
1392 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BCAST_FILTERING
))
1395 if (!iwl_mvm_bcast_filter_build_cmd(mvm
, &cmd
))
1398 return iwl_mvm_send_cmd_pdu(mvm
, BCAST_FILTER_CMD
, 0,
1402 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1403 struct ieee80211_vif
*vif
)
1409 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
1410 struct ieee80211_vif
*vif
,
1411 struct ieee80211_bss_conf
*bss_conf
,
1414 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1418 * Re-calculate the tsf id, as the master-slave relations depend on the
1419 * beacon interval, which was not known when the station interface was
1422 if (changes
& BSS_CHANGED_ASSOC
&& bss_conf
->assoc
)
1423 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1425 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false);
1427 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1429 if (changes
& BSS_CHANGED_ASSOC
) {
1430 if (bss_conf
->assoc
) {
1431 /* add quota for this interface */
1432 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1434 IWL_ERR(mvm
, "failed to update quotas\n");
1438 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
1441 * If we're restarting then the firmware will
1442 * obviously have lost synchronisation with
1443 * the AP. It will attempt to synchronise by
1444 * itself, but we can make it more reliable by
1445 * scheduling a session protection time event.
1447 * The firmware needs to receive a beacon to
1448 * catch up with synchronisation, use 110% of
1449 * the beacon interval.
1451 * Set a large maximum delay to allow for more
1452 * than a single interface.
1454 u32 dur
= (11 * vif
->bss_conf
.beacon_int
) / 10;
1455 iwl_mvm_protect_session(mvm
, vif
, dur
, dur
,
1459 iwl_mvm_sf_update(mvm
, vif
, false);
1460 iwl_mvm_power_vif_assoc(mvm
, vif
);
1462 iwl_mvm_ref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1463 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_STATION_COUNT
) {
1465 * If update fails - SF might be running in associated
1466 * mode while disassociated - which is forbidden.
1468 WARN_ONCE(iwl_mvm_sf_update(mvm
, vif
, false),
1469 "Failed to update SF upon disassociation\n");
1471 /* remove AP station now that the MAC is unassoc */
1472 ret
= iwl_mvm_rm_sta_id(mvm
, vif
, mvmvif
->ap_sta_id
);
1474 IWL_ERR(mvm
, "failed to remove AP station\n");
1476 if (mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
1477 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1478 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
1479 /* remove quota for this interface */
1480 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1482 IWL_ERR(mvm
, "failed to update quotas\n");
1485 iwl_mvm_unref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1488 iwl_mvm_recalc_multicast(mvm
);
1489 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1491 /* reset rssi values */
1492 mvmvif
->bf_data
.ave_beacon_signal
= 0;
1494 iwl_mvm_bt_coex_vif_change(mvm
);
1495 iwl_mvm_update_smps(mvm
, vif
, IWL_MVM_SMPS_REQ_TT
,
1496 IEEE80211_SMPS_AUTOMATIC
);
1497 } else if (changes
& BSS_CHANGED_BEACON_INFO
) {
1499 * We received a beacon _after_ association so
1500 * remove the session protection.
1502 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1503 &mvmvif
->time_event_data
);
1504 } else if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_P2P_PS
|
1506 ret
= iwl_mvm_power_update_mac(mvm
);
1508 IWL_ERR(mvm
, "failed to update power mode\n");
1511 if (changes
& BSS_CHANGED_BEACON_INFO
) {
1512 iwl_mvm_sf_update(mvm
, vif
, false);
1513 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
1516 if (changes
& BSS_CHANGED_TXPOWER
) {
1517 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
1519 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
1522 if (changes
& BSS_CHANGED_CQM
) {
1523 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed\n");
1524 /* reset cqm events tracking */
1525 mvmvif
->bf_data
.last_cqm_event
= 0;
1526 if (mvmvif
->bf_data
.bf_enabled
) {
1527 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
1530 "failed to update CQM thresholds\n");
1534 if (changes
& BSS_CHANGED_ARP_FILTER
) {
1535 IWL_DEBUG_MAC80211(mvm
, "arp filter changed\n");
1536 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1540 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw
*hw
,
1541 struct ieee80211_vif
*vif
)
1543 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1544 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1548 * iwl_mvm_mac_ctxt_add() might read directly from the device
1549 * (the system time), so make sure it is available.
1551 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_START_AP
);
1555 mutex_lock(&mvm
->mutex
);
1557 /* Send the beacon template */
1558 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
1563 * Re-calculate the tsf id, as the master-slave relations depend on the
1564 * beacon interval, which was not known when the AP interface was added.
1566 if (vif
->type
== NL80211_IFTYPE_AP
)
1567 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1569 /* Add the mac context */
1570 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1574 /* Perform the binding */
1575 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1579 /* Send the bcast station. At this stage the TBTT and DTIM time events
1580 * are added and applied to the scheduler */
1581 ret
= iwl_mvm_send_bcast_sta(mvm
, vif
, &mvmvif
->bcast_sta
);
1585 /* must be set before quota calculations */
1586 mvmvif
->ap_ibss_active
= true;
1588 /* power updated needs to be done before quotas */
1589 iwl_mvm_power_update_mac(mvm
);
1591 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1593 goto out_quota_failed
;
1595 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1596 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1597 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false);
1599 iwl_mvm_ref(mvm
, IWL_MVM_REF_AP_IBSS
);
1601 iwl_mvm_bt_coex_vif_change(mvm
);
1603 mutex_unlock(&mvm
->mutex
);
1607 iwl_mvm_power_update_mac(mvm
);
1608 mvmvif
->ap_ibss_active
= false;
1609 iwl_mvm_send_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
1611 iwl_mvm_binding_remove_vif(mvm
, vif
);
1613 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1615 mutex_unlock(&mvm
->mutex
);
1616 iwl_mvm_unref(mvm
, IWL_MVM_REF_START_AP
);
1620 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw
*hw
,
1621 struct ieee80211_vif
*vif
)
1623 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1624 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1626 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1628 mutex_lock(&mvm
->mutex
);
1630 /* Handle AP stop while in CSA */
1631 if (rcu_access_pointer(mvm
->csa_vif
) == vif
) {
1632 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1633 &mvmvif
->time_event_data
);
1634 RCU_INIT_POINTER(mvm
->csa_vif
, NULL
);
1637 if (rcu_access_pointer(mvm
->csa_tx_blocked_vif
) == vif
) {
1638 RCU_INIT_POINTER(mvm
->csa_tx_blocked_vif
, NULL
);
1639 mvm
->csa_tx_block_bcn_timeout
= 0;
1642 mvmvif
->ap_ibss_active
= false;
1643 mvm
->ap_last_beacon_gp2
= 0;
1645 iwl_mvm_bt_coex_vif_change(mvm
);
1647 iwl_mvm_unref(mvm
, IWL_MVM_REF_AP_IBSS
);
1649 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1650 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1651 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false);
1653 iwl_mvm_update_quotas(mvm
, NULL
);
1654 iwl_mvm_send_rm_bcast_sta(mvm
, &mvmvif
->bcast_sta
);
1655 iwl_mvm_binding_remove_vif(mvm
, vif
);
1657 iwl_mvm_power_update_mac(mvm
);
1659 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1661 mutex_unlock(&mvm
->mutex
);
1665 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm
*mvm
,
1666 struct ieee80211_vif
*vif
,
1667 struct ieee80211_bss_conf
*bss_conf
,
1670 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1672 /* Changes will be applied when the AP/IBSS is started */
1673 if (!mvmvif
->ap_ibss_active
)
1676 if (changes
& (BSS_CHANGED_ERP_CTS_PROT
| BSS_CHANGED_HT
|
1677 BSS_CHANGED_BANDWIDTH
) &&
1678 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false))
1679 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1681 /* Need to send a new beacon template to the FW */
1682 if (changes
& BSS_CHANGED_BEACON
&&
1683 iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
1684 IWL_WARN(mvm
, "Failed updating beacon data\n");
1687 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
1688 struct ieee80211_vif
*vif
,
1689 struct ieee80211_bss_conf
*bss_conf
,
1692 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1695 * iwl_mvm_bss_info_changed_station() might call
1696 * iwl_mvm_protect_session(), which reads directly from
1697 * the device (the system time), so make sure it is available.
1699 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_BSS_CHANGED
))
1702 mutex_lock(&mvm
->mutex
);
1704 if (changes
& BSS_CHANGED_IDLE
&& !bss_conf
->idle
)
1705 iwl_mvm_scan_offload_stop(mvm
, true);
1707 switch (vif
->type
) {
1708 case NL80211_IFTYPE_STATION
:
1709 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
1711 case NL80211_IFTYPE_AP
:
1712 case NL80211_IFTYPE_ADHOC
:
1713 iwl_mvm_bss_info_changed_ap_ibss(mvm
, vif
, bss_conf
, changes
);
1716 /* shouldn't happen */
1720 mutex_unlock(&mvm
->mutex
);
1721 iwl_mvm_unref(mvm
, IWL_MVM_REF_BSS_CHANGED
);
1724 static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm
*mvm
,
1725 enum iwl_scan_status scan_type
)
1728 bool wait_for_handlers
= false;
1730 mutex_lock(&mvm
->mutex
);
1732 if (mvm
->scan_status
!= scan_type
) {
1734 /* make sure there are no pending notifications */
1735 wait_for_handlers
= true;
1739 switch (scan_type
) {
1740 case IWL_MVM_SCAN_SCHED
:
1741 ret
= iwl_mvm_scan_offload_stop(mvm
, true);
1743 case IWL_MVM_SCAN_OS
:
1744 ret
= iwl_mvm_cancel_scan(mvm
);
1746 case IWL_MVM_SCAN_NONE
:
1755 wait_for_handlers
= true;
1757 mutex_unlock(&mvm
->mutex
);
1759 /* make sure we consume the completion notification */
1760 if (wait_for_handlers
)
1761 iwl_mvm_wait_for_async_handlers(mvm
);
1765 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
1766 struct ieee80211_vif
*vif
,
1767 struct ieee80211_scan_request
*hw_req
)
1769 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1770 struct cfg80211_scan_request
*req
= &hw_req
->req
;
1773 if (req
->n_channels
== 0 ||
1774 req
->n_channels
> mvm
->fw
->ucode_capa
.n_scan_channels
)
1777 ret
= iwl_mvm_cancel_scan_wait_notif(mvm
, IWL_MVM_SCAN_SCHED
);
1781 mutex_lock(&mvm
->mutex
);
1783 if (mvm
->scan_status
!= IWL_MVM_SCAN_NONE
) {
1788 iwl_mvm_ref(mvm
, IWL_MVM_REF_SCAN
);
1790 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
)
1791 ret
= iwl_mvm_unified_scan_lmac(mvm
, vif
, hw_req
);
1793 ret
= iwl_mvm_scan_request(mvm
, vif
, req
);
1796 iwl_mvm_unref(mvm
, IWL_MVM_REF_SCAN
);
1798 mutex_unlock(&mvm
->mutex
);
1802 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
1803 struct ieee80211_vif
*vif
)
1805 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1807 mutex_lock(&mvm
->mutex
);
1809 iwl_mvm_cancel_scan(mvm
);
1811 mutex_unlock(&mvm
->mutex
);
1815 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
1816 struct ieee80211_sta
*sta
, u16 tids
,
1818 enum ieee80211_frame_release_type reason
,
1821 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1823 /* Called when we need to transmit (a) frame(s) from mac80211 */
1825 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
1826 tids
, more_data
, false);
1830 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw
*hw
,
1831 struct ieee80211_sta
*sta
, u16 tids
,
1833 enum ieee80211_frame_release_type reason
,
1836 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1838 /* Called when we need to transmit (a) frame(s) from agg queue */
1840 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
1841 tids
, more_data
, true);
1844 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
1845 struct ieee80211_vif
*vif
,
1846 enum sta_notify_cmd cmd
,
1847 struct ieee80211_sta
*sta
)
1849 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1850 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
1854 case STA_NOTIFY_SLEEP
:
1855 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
1856 ieee80211_sta_block_awake(hw
, sta
, true);
1857 spin_lock_bh(&mvmsta
->lock
);
1858 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
1859 struct iwl_mvm_tid_data
*tid_data
;
1861 tid_data
= &mvmsta
->tid_data
[tid
];
1862 if (tid_data
->state
!= IWL_AGG_ON
&&
1863 tid_data
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
1865 if (iwl_mvm_tid_queued(tid_data
) == 0)
1867 ieee80211_sta_set_buffered(sta
, tid
, true);
1869 spin_unlock_bh(&mvmsta
->lock
);
1871 * The fw updates the STA to be asleep. Tx packets on the Tx
1872 * queues to this station will not be transmitted. The fw will
1873 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
1876 case STA_NOTIFY_AWAKE
:
1877 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
))
1879 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
1886 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw
*hw
,
1887 struct ieee80211_vif
*vif
,
1888 struct ieee80211_sta
*sta
)
1890 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1891 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
1894 * This is called before mac80211 does RCU synchronisation,
1895 * so here we already invalidate our internal RCU-protected
1896 * station pointer. The rest of the code will thus no longer
1897 * be able to find the station this way, and we don't rely
1898 * on further RCU synchronisation after the sta_state()
1899 * callback deleted the station.
1901 mutex_lock(&mvm
->mutex
);
1902 if (sta
== rcu_access_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
]))
1903 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
],
1905 mutex_unlock(&mvm
->mutex
);
1908 int iwl_mvm_tdls_sta_count(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
)
1910 struct ieee80211_sta
*sta
;
1911 struct iwl_mvm_sta
*mvmsta
;
1915 lockdep_assert_held(&mvm
->mutex
);
1917 for (i
= 0; i
< IWL_MVM_STATION_COUNT
; i
++) {
1918 sta
= rcu_dereference_protected(mvm
->fw_id_to_mac_id
[i
],
1919 lockdep_is_held(&mvm
->mutex
));
1920 if (!sta
|| IS_ERR(sta
) || !sta
->tdls
)
1924 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
1925 if (mvmsta
->vif
!= vif
)
1935 static void iwl_mvm_recalc_tdls_state(struct iwl_mvm
*mvm
,
1936 struct ieee80211_vif
*vif
,
1939 int tdls_sta_cnt
= iwl_mvm_tdls_sta_count(mvm
, vif
);
1942 * Disable ps when the first TDLS sta is added and re-enable it
1943 * when the last TDLS sta is removed
1945 if ((tdls_sta_cnt
== 1 && sta_added
) ||
1946 (tdls_sta_cnt
== 0 && !sta_added
))
1947 iwl_mvm_power_update_mac(mvm
);
1950 static void iwl_mvm_teardown_tdls_peers(struct iwl_mvm
*mvm
)
1952 struct ieee80211_sta
*sta
;
1953 struct iwl_mvm_sta
*mvmsta
;
1956 lockdep_assert_held(&mvm
->mutex
);
1958 for (i
= 0; i
< IWL_MVM_STATION_COUNT
; i
++) {
1959 sta
= rcu_dereference_protected(mvm
->fw_id_to_mac_id
[i
],
1960 lockdep_is_held(&mvm
->mutex
));
1961 if (!sta
|| IS_ERR(sta
) || !sta
->tdls
)
1964 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
1965 ieee80211_tdls_oper_request(mvmsta
->vif
, sta
->addr
,
1966 NL80211_TDLS_TEARDOWN
,
1967 WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED
,
1972 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
1973 struct ieee80211_vif
*vif
,
1974 struct ieee80211_sta
*sta
,
1975 enum ieee80211_sta_state old_state
,
1976 enum ieee80211_sta_state new_state
)
1978 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1979 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1982 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
1983 sta
->addr
, old_state
, new_state
);
1985 /* this would be a mac80211 bug ... but don't crash */
1986 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
1989 /* if a STA is being removed, reuse its ID */
1990 flush_work(&mvm
->sta_drained_wk
);
1992 mutex_lock(&mvm
->mutex
);
1993 if (old_state
== IEEE80211_STA_NOTEXIST
&&
1994 new_state
== IEEE80211_STA_NONE
) {
1996 * Firmware bug - it'll crash if the beacon interval is less
1997 * than 16. We can't avoid connecting at all, so refuse the
1998 * station state change, this will cause mac80211 to abandon
1999 * attempts to connect to this AP, and eventually wpa_s will
2000 * blacklist the AP...
2002 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2003 vif
->bss_conf
.beacon_int
< 16) {
2005 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2006 sta
->addr
, vif
->bss_conf
.beacon_int
);
2013 iwl_mvm_tdls_sta_count(mvm
, NULL
) ==
2014 IWL_MVM_TDLS_STA_COUNT
||
2015 iwl_mvm_phy_ctx_count(mvm
) > 1)) {
2016 IWL_DEBUG_MAC80211(mvm
, "refusing TDLS sta\n");
2021 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
2022 if (sta
->tdls
&& ret
== 0)
2023 iwl_mvm_recalc_tdls_state(mvm
, vif
, true);
2024 } else if (old_state
== IEEE80211_STA_NONE
&&
2025 new_state
== IEEE80211_STA_AUTH
) {
2027 * EBS may be disabled due to previous failures reported by FW.
2028 * Reset EBS status here assuming environment has been changed.
2030 mvm
->last_ebs_successful
= true;
2032 } else if (old_state
== IEEE80211_STA_AUTH
&&
2033 new_state
== IEEE80211_STA_ASSOC
) {
2034 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
2036 iwl_mvm_rs_rate_init(mvm
, sta
,
2037 mvmvif
->phy_ctxt
->channel
->band
,
2039 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2040 new_state
== IEEE80211_STA_AUTHORIZED
) {
2042 /* we don't support TDLS during DCM */
2043 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2044 iwl_mvm_teardown_tdls_peers(mvm
);
2046 /* enable beacon filtering */
2047 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
2049 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
2050 new_state
== IEEE80211_STA_ASSOC
) {
2051 /* disable beacon filtering */
2052 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
, 0));
2054 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2055 new_state
== IEEE80211_STA_AUTH
) {
2057 } else if (old_state
== IEEE80211_STA_AUTH
&&
2058 new_state
== IEEE80211_STA_NONE
) {
2060 } else if (old_state
== IEEE80211_STA_NONE
&&
2061 new_state
== IEEE80211_STA_NOTEXIST
) {
2062 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
2064 iwl_mvm_recalc_tdls_state(mvm
, vif
, false);
2069 mutex_unlock(&mvm
->mutex
);
2074 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
2076 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2078 mvm
->rts_threshold
= value
;
2083 static void iwl_mvm_sta_rc_update(struct ieee80211_hw
*hw
,
2084 struct ieee80211_vif
*vif
,
2085 struct ieee80211_sta
*sta
, u32 changed
)
2087 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2089 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2090 changed
& IEEE80211_RC_NSS_CHANGED
)
2091 iwl_mvm_sf_update(mvm
, vif
, false);
2094 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
2095 struct ieee80211_vif
*vif
, u16 ac
,
2096 const struct ieee80211_tx_queue_params
*params
)
2098 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2099 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2101 mvmvif
->queue_params
[ac
] = *params
;
2104 * No need to update right away, we'll get BSS_CHANGED_QOS
2105 * The exception is P2P_DEVICE interface which needs immediate update.
2107 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
2110 mutex_lock(&mvm
->mutex
);
2111 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false);
2112 mutex_unlock(&mvm
->mutex
);
2118 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
2119 struct ieee80211_vif
*vif
)
2121 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2122 u32 duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
,
2123 200 + vif
->bss_conf
.beacon_int
);
2124 u32 min_duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
,
2125 100 + vif
->bss_conf
.beacon_int
);
2127 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
2131 * iwl_mvm_protect_session() reads directly from the device
2132 * (the system time), so make sure it is available.
2134 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PREPARE_TX
))
2137 mutex_lock(&mvm
->mutex
);
2138 /* Try really hard to protect the session and hear a beacon */
2139 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
, 500);
2140 mutex_unlock(&mvm
->mutex
);
2142 iwl_mvm_unref(mvm
, IWL_MVM_REF_PREPARE_TX
);
2145 static void iwl_mvm_mac_mgd_protect_tdls_discover(struct ieee80211_hw
*hw
,
2146 struct ieee80211_vif
*vif
)
2148 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2149 u32 duration
= 2 * vif
->bss_conf
.dtim_period
* vif
->bss_conf
.beacon_int
;
2152 * iwl_mvm_protect_session() reads directly from the device
2153 * (the system time), so make sure it is available.
2155 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PROTECT_TDLS
))
2158 mutex_lock(&mvm
->mutex
);
2159 /* Protect the session to hear the TDLS setup response on the channel */
2160 iwl_mvm_protect_session(mvm
, vif
, duration
, duration
, 100);
2161 mutex_unlock(&mvm
->mutex
);
2163 iwl_mvm_unref(mvm
, IWL_MVM_REF_PROTECT_TDLS
);
2166 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw
*hw
,
2167 struct ieee80211_vif
*vif
,
2168 struct cfg80211_sched_scan_request
*req
,
2169 struct ieee80211_scan_ies
*ies
)
2171 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2174 ret
= iwl_mvm_cancel_scan_wait_notif(mvm
, IWL_MVM_SCAN_OS
);
2178 mutex_lock(&mvm
->mutex
);
2180 if (!iwl_mvm_is_idle(mvm
)) {
2185 if (mvm
->scan_status
!= IWL_MVM_SCAN_NONE
) {
2190 mvm
->scan_status
= IWL_MVM_SCAN_SCHED
;
2192 if (!(mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
)) {
2193 ret
= iwl_mvm_config_sched_scan(mvm
, vif
, req
, ies
);
2198 ret
= iwl_mvm_config_sched_scan_profiles(mvm
, req
);
2202 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
)
2203 ret
= iwl_mvm_unified_sched_scan_lmac(mvm
, vif
, req
, ies
);
2205 ret
= iwl_mvm_sched_scan_start(mvm
, req
);
2210 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
2212 mutex_unlock(&mvm
->mutex
);
2216 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw
*hw
,
2217 struct ieee80211_vif
*vif
)
2219 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2222 mutex_lock(&mvm
->mutex
);
2223 ret
= iwl_mvm_scan_offload_stop(mvm
, false);
2224 mutex_unlock(&mvm
->mutex
);
2225 iwl_mvm_wait_for_async_handlers(mvm
);
2230 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
2231 enum set_key_cmd cmd
,
2232 struct ieee80211_vif
*vif
,
2233 struct ieee80211_sta
*sta
,
2234 struct ieee80211_key_conf
*key
)
2236 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2239 if (iwlwifi_mod_params
.sw_crypto
) {
2240 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
2244 switch (key
->cipher
) {
2245 case WLAN_CIPHER_SUITE_TKIP
:
2246 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
2248 case WLAN_CIPHER_SUITE_CCMP
:
2249 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
2251 case WLAN_CIPHER_SUITE_AES_CMAC
:
2252 WARN_ON_ONCE(!(hw
->flags
& IEEE80211_HW_MFP_CAPABLE
));
2254 case WLAN_CIPHER_SUITE_WEP40
:
2255 case WLAN_CIPHER_SUITE_WEP104
:
2257 * Support for TX only, at least for now, so accept
2258 * the key and do nothing else. Then mac80211 will
2259 * pass it for TX but we don't have to use it for RX.
2263 /* currently FW supports only one optional cipher scheme */
2264 if (hw
->n_cipher_schemes
&&
2265 hw
->cipher_schemes
->cipher
== key
->cipher
)
2266 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2271 mutex_lock(&mvm
->mutex
);
2275 if ((vif
->type
== NL80211_IFTYPE_ADHOC
||
2276 vif
->type
== NL80211_IFTYPE_AP
) && !sta
) {
2278 * GTK on AP interface is a TX-only key, return 0;
2279 * on IBSS they're per-station and because we're lazy
2280 * we don't support them for RX, so do the same.
2283 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2287 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
2288 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, false);
2290 IWL_WARN(mvm
, "set key failed\n");
2292 * can't add key for RX, but we don't need it
2293 * in the device for TX so still return 0
2295 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2301 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2306 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
2307 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
2313 mutex_unlock(&mvm
->mutex
);
2317 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2318 struct ieee80211_vif
*vif
,
2319 struct ieee80211_key_conf
*keyconf
,
2320 struct ieee80211_sta
*sta
,
2321 u32 iv32
, u16
*phase1key
)
2323 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2325 if (keyconf
->hw_key_idx
== STA_KEY_IDX_INVALID
)
2328 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
2332 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data
*notif_wait
,
2333 struct iwl_rx_packet
*pkt
, void *data
)
2335 struct iwl_mvm
*mvm
=
2336 container_of(notif_wait
, struct iwl_mvm
, notif_wait
);
2337 struct iwl_hs20_roc_res
*resp
;
2338 int resp_len
= iwl_rx_packet_payload_len(pkt
);
2339 struct iwl_mvm_time_event_data
*te_data
= data
;
2341 if (WARN_ON(pkt
->hdr
.cmd
!= HOT_SPOT_CMD
))
2344 if (WARN_ON_ONCE(resp_len
!= sizeof(*resp
))) {
2345 IWL_ERR(mvm
, "Invalid HOT_SPOT_CMD response\n");
2349 resp
= (void *)pkt
->data
;
2352 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2353 resp
->status
, resp
->event_unique_id
);
2355 te_data
->uid
= le32_to_cpu(resp
->event_unique_id
);
2356 IWL_DEBUG_TE(mvm
, "TIME_EVENT_CMD response - UID = 0x%x\n",
2359 spin_lock_bh(&mvm
->time_event_lock
);
2360 list_add_tail(&te_data
->list
, &mvm
->aux_roc_te_list
);
2361 spin_unlock_bh(&mvm
->time_event_lock
);
2366 #define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2367 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm
*mvm
,
2368 struct ieee80211_channel
*channel
,
2369 struct ieee80211_vif
*vif
,
2372 int res
, time_reg
= DEVICE_SYSTEM_TIME_REG
;
2373 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2374 struct iwl_mvm_time_event_data
*te_data
= &mvmvif
->hs_time_event_data
;
2375 static const u8 time_event_response
[] = { HOT_SPOT_CMD
};
2376 struct iwl_notification_wait wait_time_event
;
2377 struct iwl_hs20_roc_req aux_roc_req
= {
2378 .action
= cpu_to_le32(FW_CTXT_ACTION_ADD
),
2380 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX
, 0)),
2381 .sta_id_and_color
= cpu_to_le32(mvm
->aux_sta
.sta_id
),
2382 /* Set the channel info data */
2383 .channel_info
.band
= (channel
->band
== IEEE80211_BAND_2GHZ
) ?
2384 PHY_BAND_24
: PHY_BAND_5
,
2385 .channel_info
.channel
= channel
->hw_value
,
2386 .channel_info
.width
= PHY_VHT_CHANNEL_MODE20
,
2387 /* Set the time and duration */
2388 .apply_time
= cpu_to_le32(iwl_read_prph(mvm
->trans
, time_reg
)),
2389 .apply_time_max_delay
=
2390 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL
)),
2391 .duration
= cpu_to_le32(MSEC_TO_TU(duration
)),
2394 /* Set the node address */
2395 memcpy(aux_roc_req
.node_addr
, vif
->addr
, ETH_ALEN
);
2398 te_data
->duration
= duration
;
2399 te_data
->id
= HOT_SPOT_CMD
;
2401 lockdep_assert_held(&mvm
->mutex
);
2403 spin_lock_bh(&mvm
->time_event_lock
);
2404 list_add_tail(&te_data
->list
, &mvm
->time_event_list
);
2405 spin_unlock_bh(&mvm
->time_event_lock
);
2408 * Use a notification wait, which really just processes the
2409 * command response and doesn't wait for anything, in order
2410 * to be able to process the response and get the UID inside
2411 * the RX path. Using CMD_WANT_SKB doesn't work because it
2412 * stores the buffer and then wakes up this thread, by which
2413 * time another notification (that the time event started)
2414 * might already be processed unsuccessfully.
2416 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_time_event
,
2417 time_event_response
,
2418 ARRAY_SIZE(time_event_response
),
2419 iwl_mvm_rx_aux_roc
, te_data
);
2421 res
= iwl_mvm_send_cmd_pdu(mvm
, HOT_SPOT_CMD
, 0, sizeof(aux_roc_req
),
2425 IWL_ERR(mvm
, "Couldn't send HOT_SPOT_CMD: %d\n", res
);
2426 iwl_remove_notification(&mvm
->notif_wait
, &wait_time_event
);
2430 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2431 res
= iwl_wait_notification(&mvm
->notif_wait
, &wait_time_event
, 1);
2432 /* should never fail */
2437 spin_lock_bh(&mvm
->time_event_lock
);
2438 iwl_mvm_te_clear_data(mvm
, te_data
);
2439 spin_unlock_bh(&mvm
->time_event_lock
);
2445 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
2446 struct ieee80211_vif
*vif
,
2447 struct ieee80211_channel
*channel
,
2449 enum ieee80211_roc_type type
)
2451 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2452 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2453 struct cfg80211_chan_def chandef
;
2454 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2457 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
2460 switch (vif
->type
) {
2461 case NL80211_IFTYPE_STATION
:
2462 /* Use aux roc framework (HS20) */
2463 ret
= iwl_mvm_send_aux_roc_cmd(mvm
, channel
,
2466 case NL80211_IFTYPE_P2P_DEVICE
:
2470 IWL_ERR(mvm
, "vif isn't P2P_DEVICE: %d\n", vif
->type
);
2474 mutex_lock(&mvm
->mutex
);
2476 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
2477 phy_ctxt
= &mvm
->phy_ctxts
[i
];
2478 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
2481 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
2483 * Unbind the P2P_DEVICE from the current PHY context,
2484 * and if the PHY context is not used remove it.
2486 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2487 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2490 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2492 /* Bind the P2P_DEVICE to the current PHY Context */
2493 mvmvif
->phy_ctxt
= phy_ctxt
;
2495 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2496 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2499 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2500 goto schedule_time_event
;
2504 /* Need to update the PHY context only if the ROC channel changed */
2505 if (channel
== mvmvif
->phy_ctxt
->channel
)
2506 goto schedule_time_event
;
2508 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
2511 * Change the PHY context configuration as it is currently referenced
2512 * only by the P2P Device MAC
2514 if (mvmvif
->phy_ctxt
->ref
== 1) {
2515 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
2521 * The PHY context is shared with other MACs. Need to remove the
2522 * P2P Device from the binding, allocate an new PHY context and
2523 * create a new binding
2525 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2531 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
2534 IWL_ERR(mvm
, "Failed to change PHY context\n");
2538 /* Unbind the P2P_DEVICE from the current PHY context */
2539 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2540 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2543 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2545 /* Bind the P2P_DEVICE to the new allocated PHY context */
2546 mvmvif
->phy_ctxt
= phy_ctxt
;
2548 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2549 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2552 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2555 schedule_time_event
:
2556 /* Schedule the time events */
2557 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
2560 mutex_unlock(&mvm
->mutex
);
2561 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2565 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
2567 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2569 IWL_DEBUG_MAC80211(mvm
, "enter\n");
2571 mutex_lock(&mvm
->mutex
);
2572 iwl_mvm_stop_p2p_roc(mvm
);
2573 mutex_unlock(&mvm
->mutex
);
2575 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2579 static int __iwl_mvm_add_chanctx(struct iwl_mvm
*mvm
,
2580 struct ieee80211_chanctx_conf
*ctx
)
2582 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2583 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2586 lockdep_assert_held(&mvm
->mutex
);
2588 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
2590 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2596 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2597 ctx
->rx_chains_static
,
2598 ctx
->rx_chains_dynamic
);
2600 IWL_ERR(mvm
, "Failed to add PHY context\n");
2604 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
2605 *phy_ctxt_id
= phy_ctxt
->id
;
2610 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
2611 struct ieee80211_chanctx_conf
*ctx
)
2613 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2616 mutex_lock(&mvm
->mutex
);
2617 ret
= __iwl_mvm_add_chanctx(mvm
, ctx
);
2618 mutex_unlock(&mvm
->mutex
);
2623 static void __iwl_mvm_remove_chanctx(struct iwl_mvm
*mvm
,
2624 struct ieee80211_chanctx_conf
*ctx
)
2626 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2627 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2629 lockdep_assert_held(&mvm
->mutex
);
2631 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
2634 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
2635 struct ieee80211_chanctx_conf
*ctx
)
2637 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2639 mutex_lock(&mvm
->mutex
);
2640 __iwl_mvm_remove_chanctx(mvm
, ctx
);
2641 mutex_unlock(&mvm
->mutex
);
2644 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
2645 struct ieee80211_chanctx_conf
*ctx
,
2648 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2649 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2650 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2652 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
2653 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
2654 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
2655 IEEE80211_CHANCTX_CHANGE_RADAR
|
2656 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH
)),
2657 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2658 phy_ctxt
->ref
, changed
))
2661 mutex_lock(&mvm
->mutex
);
2662 iwl_mvm_bt_coex_vif_change(mvm
);
2663 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2664 ctx
->rx_chains_static
,
2665 ctx
->rx_chains_dynamic
);
2666 mutex_unlock(&mvm
->mutex
);
2669 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm
*mvm
,
2670 struct ieee80211_vif
*vif
,
2671 struct ieee80211_chanctx_conf
*ctx
,
2672 bool switching_chanctx
)
2674 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2675 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2676 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2679 lockdep_assert_held(&mvm
->mutex
);
2681 mvmvif
->phy_ctxt
= phy_ctxt
;
2683 switch (vif
->type
) {
2684 case NL80211_IFTYPE_AP
:
2685 /* Unless it's a CSA flow we have nothing to do here */
2686 if (vif
->csa_active
) {
2687 mvmvif
->ap_ibss_active
= true;
2690 case NL80211_IFTYPE_ADHOC
:
2692 * The AP binding flow is handled as part of the start_ap flow
2693 * (in bss_info_changed), similarly for IBSS.
2697 case NL80211_IFTYPE_STATION
:
2698 case NL80211_IFTYPE_MONITOR
:
2705 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2710 * Power state must be updated before quotas,
2711 * otherwise fw will complain.
2713 iwl_mvm_power_update_mac(mvm
);
2715 /* Setting the quota at this stage is only required for monitor
2716 * interfaces. For the other types, the bss_info changed flow
2717 * will handle quota settings.
2719 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
2720 mvmvif
->monitor_active
= true;
2721 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
2723 goto out_remove_binding
;
2726 /* Handle binding during CSA */
2727 if ((vif
->type
== NL80211_IFTYPE_AP
) ||
2728 (switching_chanctx
&& (vif
->type
== NL80211_IFTYPE_STATION
))) {
2729 iwl_mvm_update_quotas(mvm
, NULL
);
2730 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false);
2736 iwl_mvm_binding_remove_vif(mvm
, vif
);
2737 iwl_mvm_power_update_mac(mvm
);
2740 mvmvif
->phy_ctxt
= NULL
;
2743 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
2744 struct ieee80211_vif
*vif
,
2745 struct ieee80211_chanctx_conf
*ctx
)
2747 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2750 mutex_lock(&mvm
->mutex
);
2751 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vif
, ctx
, false);
2752 mutex_unlock(&mvm
->mutex
);
2757 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm
*mvm
,
2758 struct ieee80211_vif
*vif
,
2759 struct ieee80211_chanctx_conf
*ctx
,
2760 bool switching_chanctx
)
2762 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2763 struct ieee80211_vif
*disabled_vif
= NULL
;
2765 lockdep_assert_held(&mvm
->mutex
);
2767 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
2769 switch (vif
->type
) {
2770 case NL80211_IFTYPE_ADHOC
:
2772 case NL80211_IFTYPE_MONITOR
:
2773 mvmvif
->monitor_active
= false;
2775 case NL80211_IFTYPE_AP
:
2776 /* This part is triggered only during CSA */
2777 if (!vif
->csa_active
|| !mvmvif
->ap_ibss_active
)
2780 /* Set CS bit on all the stations */
2781 iwl_mvm_modify_all_sta_disable_tx(mvm
, mvmvif
, true);
2783 /* Save blocked iface, the timeout is set on the next beacon */
2784 rcu_assign_pointer(mvm
->csa_tx_blocked_vif
, vif
);
2786 mvmvif
->ap_ibss_active
= false;
2788 case NL80211_IFTYPE_STATION
:
2789 if (!switching_chanctx
)
2794 iwl_mvm_mac_ctxt_changed(mvm
, vif
, true);
2800 iwl_mvm_update_quotas(mvm
, disabled_vif
);
2801 iwl_mvm_binding_remove_vif(mvm
, vif
);
2804 mvmvif
->phy_ctxt
= NULL
;
2805 iwl_mvm_power_update_mac(mvm
);
2808 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
2809 struct ieee80211_vif
*vif
,
2810 struct ieee80211_chanctx_conf
*ctx
)
2812 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2814 mutex_lock(&mvm
->mutex
);
2815 __iwl_mvm_unassign_vif_chanctx(mvm
, vif
, ctx
, false);
2816 mutex_unlock(&mvm
->mutex
);
2819 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw
*hw
,
2820 struct ieee80211_vif_chanctx_switch
*vifs
,
2822 enum ieee80211_chanctx_switch_mode mode
)
2824 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2827 /* we only support SWAP_CONTEXTS and with a single-vif right now */
2828 if (mode
!= CHANCTX_SWMODE_SWAP_CONTEXTS
|| n_vifs
> 1)
2831 mutex_lock(&mvm
->mutex
);
2832 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
2833 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].old_ctx
);
2835 ret
= __iwl_mvm_add_chanctx(mvm
, vifs
[0].new_ctx
);
2837 IWL_ERR(mvm
, "failed to add new_ctx during channel switch\n");
2841 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
2845 "failed to assign new_ctx during channel switch\n");
2852 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].new_ctx
);
2855 ret
= __iwl_mvm_add_chanctx(mvm
, vifs
[0].old_ctx
);
2857 IWL_ERR(mvm
, "failed to add old_ctx back after failure.\n");
2861 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
2864 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
2871 /* things keep failing, better restart the hw */
2872 iwl_mvm_nic_restart(mvm
, false);
2875 mutex_unlock(&mvm
->mutex
);
2879 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
2880 struct ieee80211_sta
*sta
,
2883 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2884 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
2886 if (!mvm_sta
|| !mvm_sta
->vif
) {
2887 IWL_ERR(mvm
, "Station is not associated to a vif\n");
2891 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
2894 #ifdef CONFIG_NL80211_TESTMODE
2895 static const struct nla_policy iwl_mvm_tm_policy
[IWL_MVM_TM_ATTR_MAX
+ 1] = {
2896 [IWL_MVM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
2897 [IWL_MVM_TM_ATTR_NOA_DURATION
] = { .type
= NLA_U32
},
2898 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
] = { .type
= NLA_U32
},
2901 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm
*mvm
,
2902 struct ieee80211_vif
*vif
,
2903 void *data
, int len
)
2905 struct nlattr
*tb
[IWL_MVM_TM_ATTR_MAX
+ 1];
2909 err
= nla_parse(tb
, IWL_MVM_TM_ATTR_MAX
, data
, len
, iwl_mvm_tm_policy
);
2913 if (!tb
[IWL_MVM_TM_ATTR_CMD
])
2916 switch (nla_get_u32(tb
[IWL_MVM_TM_ATTR_CMD
])) {
2917 case IWL_MVM_TM_CMD_SET_NOA
:
2918 if (!vif
|| vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
||
2919 !vif
->bss_conf
.enable_beacon
||
2920 !tb
[IWL_MVM_TM_ATTR_NOA_DURATION
])
2923 noa_duration
= nla_get_u32(tb
[IWL_MVM_TM_ATTR_NOA_DURATION
]);
2924 if (noa_duration
>= vif
->bss_conf
.beacon_int
)
2927 mvm
->noa_duration
= noa_duration
;
2930 return iwl_mvm_update_quotas(mvm
, NULL
);
2931 case IWL_MVM_TM_CMD_SET_BEACON_FILTER
:
2932 /* must be associated client vif - ignore authorized */
2933 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
||
2934 !vif
->bss_conf
.assoc
|| !vif
->bss_conf
.dtim_period
||
2935 !tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
])
2938 if (nla_get_u32(tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
]))
2939 return iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
2940 return iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
2946 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw
*hw
,
2947 struct ieee80211_vif
*vif
,
2948 void *data
, int len
)
2950 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2953 mutex_lock(&mvm
->mutex
);
2954 err
= __iwl_mvm_mac_testmode_cmd(mvm
, vif
, data
, len
);
2955 mutex_unlock(&mvm
->mutex
);
2961 static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw
*hw
,
2962 struct ieee80211_vif
*vif
,
2963 struct cfg80211_chan_def
*chandef
)
2965 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2966 struct ieee80211_vif
*csa_vif
;
2968 mutex_lock(&mvm
->mutex
);
2970 csa_vif
= rcu_dereference_protected(mvm
->csa_vif
,
2971 lockdep_is_held(&mvm
->mutex
));
2972 if (WARN(csa_vif
&& csa_vif
->csa_active
,
2973 "Another CSA is already in progress"))
2976 IWL_DEBUG_MAC80211(mvm
, "CSA started to freq %d\n",
2977 chandef
->center_freq1
);
2978 rcu_assign_pointer(mvm
->csa_vif
, vif
);
2981 mutex_unlock(&mvm
->mutex
);
2984 static void iwl_mvm_mac_flush(struct ieee80211_hw
*hw
,
2985 struct ieee80211_vif
*vif
, u32 queues
, bool drop
)
2987 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2988 struct iwl_mvm_vif
*mvmvif
;
2989 struct iwl_mvm_sta
*mvmsta
;
2991 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
)
2994 mutex_lock(&mvm
->mutex
);
2995 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2996 mvmsta
= iwl_mvm_sta_from_staid_protected(mvm
, mvmvif
->ap_sta_id
);
2998 if (WARN_ON_ONCE(!mvmsta
))
3002 if (iwl_mvm_flush_tx_path(mvm
, mvmsta
->tfd_queue_msk
, true))
3003 IWL_ERR(mvm
, "flush request fail\n");
3005 iwl_trans_wait_tx_queue_empty(mvm
->trans
,
3006 mvmsta
->tfd_queue_msk
);
3009 mutex_unlock(&mvm
->mutex
);
3012 const struct ieee80211_ops iwl_mvm_hw_ops
= {
3013 .tx
= iwl_mvm_mac_tx
,
3014 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
3015 .start
= iwl_mvm_mac_start
,
3016 .restart_complete
= iwl_mvm_mac_restart_complete
,
3017 .stop
= iwl_mvm_mac_stop
,
3018 .add_interface
= iwl_mvm_mac_add_interface
,
3019 .remove_interface
= iwl_mvm_mac_remove_interface
,
3020 .config
= iwl_mvm_mac_config
,
3021 .prepare_multicast
= iwl_mvm_prepare_multicast
,
3022 .configure_filter
= iwl_mvm_configure_filter
,
3023 .bss_info_changed
= iwl_mvm_bss_info_changed
,
3024 .hw_scan
= iwl_mvm_mac_hw_scan
,
3025 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
3026 .sta_pre_rcu_remove
= iwl_mvm_sta_pre_rcu_remove
,
3027 .sta_state
= iwl_mvm_mac_sta_state
,
3028 .sta_notify
= iwl_mvm_mac_sta_notify
,
3029 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
3030 .release_buffered_frames
= iwl_mvm_mac_release_buffered_frames
,
3031 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
3032 .sta_rc_update
= iwl_mvm_sta_rc_update
,
3033 .conf_tx
= iwl_mvm_mac_conf_tx
,
3034 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
3035 .mgd_protect_tdls_discover
= iwl_mvm_mac_mgd_protect_tdls_discover
,
3036 .flush
= iwl_mvm_mac_flush
,
3037 .sched_scan_start
= iwl_mvm_mac_sched_scan_start
,
3038 .sched_scan_stop
= iwl_mvm_mac_sched_scan_stop
,
3039 .set_key
= iwl_mvm_mac_set_key
,
3040 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
3041 .remain_on_channel
= iwl_mvm_roc
,
3042 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
3043 .add_chanctx
= iwl_mvm_add_chanctx
,
3044 .remove_chanctx
= iwl_mvm_remove_chanctx
,
3045 .change_chanctx
= iwl_mvm_change_chanctx
,
3046 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
3047 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
3048 .switch_vif_chanctx
= iwl_mvm_switch_vif_chanctx
,
3050 .start_ap
= iwl_mvm_start_ap_ibss
,
3051 .stop_ap
= iwl_mvm_stop_ap_ibss
,
3052 .join_ibss
= iwl_mvm_start_ap_ibss
,
3053 .leave_ibss
= iwl_mvm_stop_ap_ibss
,
3055 .set_tim
= iwl_mvm_set_tim
,
3057 .channel_switch_beacon
= iwl_mvm_channel_switch_beacon
,
3059 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd
)
3061 #ifdef CONFIG_PM_SLEEP
3063 .suspend
= iwl_mvm_suspend
,
3064 .resume
= iwl_mvm_resume
,
3065 .set_wakeup
= iwl_mvm_set_wakeup
,
3066 .set_rekey_data
= iwl_mvm_set_rekey_data
,
3067 #if IS_ENABLED(CONFIG_IPV6)
3068 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
3070 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,