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.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
36 * All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *****************************************************************************/
65 #include <linux/kernel.h>
66 #include <linux/slab.h>
67 #include <linux/skbuff.h>
68 #include <linux/netdevice.h>
69 #include <linux/etherdevice.h>
71 #include <linux/if_arp.h>
72 #include <linux/devcoredump.h>
73 #include <net/mac80211.h>
74 #include <net/ieee80211_radiotap.h>
77 #include "iwl-op-mode.h"
81 #include "time-event.h"
82 #include "iwl-eeprom-parse.h"
83 #include "fw-api-scan.h"
84 #include "iwl-phy-db.h"
86 #include "iwl-fw-error-dump.h"
90 static const struct ieee80211_iface_limit iwl_mvm_limits
[] = {
93 .types
= BIT(NL80211_IFTYPE_STATION
),
97 .types
= BIT(NL80211_IFTYPE_AP
) |
98 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
99 BIT(NL80211_IFTYPE_P2P_GO
),
103 .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
),
107 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations
[] = {
109 .num_different_channels
= 1,
111 .limits
= iwl_mvm_limits
,
112 .n_limits
= ARRAY_SIZE(iwl_mvm_limits
),
116 #ifdef CONFIG_PM_SLEEP
117 static const struct nl80211_wowlan_tcp_data_token_feature
118 iwl_mvm_wowlan_tcp_token_feature
= {
121 .bufsize
= IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS
,
124 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support
= {
125 .tok
= &iwl_mvm_wowlan_tcp_token_feature
,
126 .data_payload_max
= IWL_WOWLAN_TCP_MAX_PACKET_LEN
-
127 sizeof(struct ethhdr
) -
128 sizeof(struct iphdr
) -
129 sizeof(struct tcphdr
),
130 .data_interval_max
= 65535, /* __le16 in API */
131 .wake_payload_max
= IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN
-
132 sizeof(struct ethhdr
) -
133 sizeof(struct iphdr
) -
134 sizeof(struct tcphdr
),
139 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
141 * Use the reserved field to indicate magic values.
142 * these values will only be used internally by the driver,
143 * and won't make it to the fw (reserved will be 0).
144 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
145 * be the vif's ip address. in case there is not a single
146 * ip address (0, or more than 1), this attribute will
148 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
149 * the LSB bytes of the vif's mac address
152 BC_FILTER_MAGIC_NONE
= 0,
157 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters
[] = {
161 .frame_type
= BCAST_FILTER_FRAME_TYPE_ALL
,
164 /* frame type - arp, hw type - ethernet */
166 BCAST_FILTER_OFFSET_PAYLOAD_START
,
167 .offset
= sizeof(rfc1042_header
),
168 .val
= cpu_to_be32(0x08060001),
169 .mask
= cpu_to_be32(0xffffffff),
174 BCAST_FILTER_OFFSET_PAYLOAD_START
,
175 .offset
= sizeof(rfc1042_header
) + 2 +
176 sizeof(struct arphdr
) +
177 ETH_ALEN
+ sizeof(__be32
) +
179 .mask
= cpu_to_be32(0xffffffff),
180 /* mark it as special field */
181 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_IP
),
186 /* dhcp offer bcast */
188 .frame_type
= BCAST_FILTER_FRAME_TYPE_IPV4
,
191 /* udp dest port - 68 (bootp client)*/
192 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
193 .offset
= offsetof(struct udphdr
, dest
),
194 .val
= cpu_to_be32(0x00440000),
195 .mask
= cpu_to_be32(0xffff0000),
198 /* dhcp - lsb bytes of client hw address */
199 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
201 .mask
= cpu_to_be32(0xffffffff),
202 /* mark it as special field */
203 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_MAC
),
207 /* last filter must be empty */
212 void iwl_mvm_ref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
214 if (!iwl_mvm_is_d0i3_supported(mvm
))
217 IWL_DEBUG_RPM(mvm
, "Take mvm reference - type %d\n", ref_type
);
218 spin_lock_bh(&mvm
->refs_lock
);
219 mvm
->refs
[ref_type
]++;
220 spin_unlock_bh(&mvm
->refs_lock
);
221 iwl_trans_ref(mvm
->trans
);
224 void iwl_mvm_unref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
226 if (!iwl_mvm_is_d0i3_supported(mvm
))
229 IWL_DEBUG_RPM(mvm
, "Leave mvm reference - type %d\n", ref_type
);
230 spin_lock_bh(&mvm
->refs_lock
);
231 WARN_ON(!mvm
->refs
[ref_type
]--);
232 spin_unlock_bh(&mvm
->refs_lock
);
233 iwl_trans_unref(mvm
->trans
);
236 static void iwl_mvm_unref_all_except(struct iwl_mvm
*mvm
,
237 enum iwl_mvm_ref_type except_ref
)
241 if (!iwl_mvm_is_d0i3_supported(mvm
))
244 spin_lock_bh(&mvm
->refs_lock
);
245 for (i
= 0; i
< IWL_MVM_REF_COUNT
; i
++) {
246 if (except_ref
== i
|| !mvm
->refs
[i
])
249 IWL_DEBUG_RPM(mvm
, "Cleanup: remove mvm ref type %d (%d)\n",
251 for (j
= 0; j
< mvm
->refs
[i
]; j
++)
252 iwl_trans_unref(mvm
->trans
);
255 spin_unlock_bh(&mvm
->refs_lock
);
258 bool iwl_mvm_ref_taken(struct iwl_mvm
*mvm
)
263 if (!iwl_mvm_is_d0i3_supported(mvm
))
266 spin_lock_bh(&mvm
->refs_lock
);
267 for (i
= 0; i
< IWL_MVM_REF_COUNT
; i
++) {
273 spin_unlock_bh(&mvm
->refs_lock
);
278 int iwl_mvm_ref_sync(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
280 iwl_mvm_ref(mvm
, ref_type
);
282 if (!wait_event_timeout(mvm
->d0i3_exit_waitq
,
283 !test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
),
286 iwl_mvm_unref(mvm
, ref_type
);
293 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm
*mvm
)
297 memset(mvm
->phy_ctxts
, 0, sizeof(mvm
->phy_ctxts
));
298 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
299 mvm
->phy_ctxts
[i
].id
= i
;
300 mvm
->phy_ctxts
[i
].ref
= 0;
304 int iwl_mvm_mac_setup_register(struct iwl_mvm
*mvm
)
306 struct ieee80211_hw
*hw
= mvm
->hw
;
309 /* Tell mac80211 our characteristics */
310 hw
->flags
= IEEE80211_HW_SIGNAL_DBM
|
311 IEEE80211_HW_SPECTRUM_MGMT
|
312 IEEE80211_HW_REPORTS_TX_ACK_STATUS
|
313 IEEE80211_HW_QUEUE_CONTROL
|
314 IEEE80211_HW_WANT_MONITOR_VIF
|
315 IEEE80211_HW_SUPPORTS_PS
|
316 IEEE80211_HW_SUPPORTS_DYNAMIC_PS
|
317 IEEE80211_HW_AMPDU_AGGREGATION
|
318 IEEE80211_HW_TIMING_BEACON_ONLY
|
319 IEEE80211_HW_CONNECTION_MONITOR
|
320 IEEE80211_HW_CHANCTX_STA_CSA
|
321 IEEE80211_HW_SUPPORTS_CLONED_SKBS
;
323 hw
->queues
= mvm
->first_agg_queue
;
324 hw
->offchannel_tx_hw_queue
= IWL_MVM_OFFCHANNEL_QUEUE
;
325 hw
->radiotap_mcs_details
|= IEEE80211_RADIOTAP_MCS_HAVE_FEC
|
326 IEEE80211_RADIOTAP_MCS_HAVE_STBC
;
327 hw
->radiotap_vht_details
|= IEEE80211_RADIOTAP_VHT_KNOWN_STBC
|
328 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED
;
329 hw
->rate_control_algorithm
= "iwl-mvm-rs";
332 * Enable 11w if advertised by firmware and software crypto
333 * is not enabled (as the firmware will interpret some mgmt
334 * packets, so enabling it with software crypto isn't safe)
336 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_MFP
&&
337 !iwlwifi_mod_params
.sw_crypto
)
338 hw
->flags
|= IEEE80211_HW_MFP_CAPABLE
;
340 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT
&&
341 !iwlwifi_mod_params
.uapsd_disable
) {
342 hw
->flags
|= IEEE80211_HW_SUPPORTS_UAPSD
;
343 hw
->uapsd_queues
= IWL_MVM_UAPSD_QUEUES
;
344 hw
->uapsd_max_sp_len
= IWL_UAPSD_MAX_SP
;
347 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
||
348 mvm
->fw
->ucode_capa
.capa
[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN
) {
349 hw
->flags
|= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS
;
350 hw
->wiphy
->features
|=
351 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR
|
352 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR
;
355 hw
->sta_data_size
= sizeof(struct iwl_mvm_sta
);
356 hw
->vif_data_size
= sizeof(struct iwl_mvm_vif
);
357 hw
->chanctx_data_size
= sizeof(u16
);
359 hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
360 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
361 BIT(NL80211_IFTYPE_AP
) |
362 BIT(NL80211_IFTYPE_P2P_GO
) |
363 BIT(NL80211_IFTYPE_P2P_DEVICE
) |
364 BIT(NL80211_IFTYPE_ADHOC
);
366 hw
->wiphy
->flags
|= WIPHY_FLAG_IBSS_RSN
;
367 hw
->wiphy
->regulatory_flags
|= REGULATORY_CUSTOM_REG
|
368 REGULATORY_DISABLE_BEACON_HINTS
;
370 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_GO_UAPSD
)
371 hw
->wiphy
->flags
|= WIPHY_FLAG_AP_UAPSD
;
373 hw
->wiphy
->flags
|= WIPHY_FLAG_HAS_CHANNEL_SWITCH
;
375 hw
->wiphy
->iface_combinations
= iwl_mvm_iface_combinations
;
376 hw
->wiphy
->n_iface_combinations
=
377 ARRAY_SIZE(iwl_mvm_iface_combinations
);
379 hw
->wiphy
->max_remain_on_channel_duration
= 10000;
380 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
381 /* we can compensate an offset of up to 3 channels = 15 MHz */
382 hw
->wiphy
->max_adj_channel_rssi_comp
= 3 * 5;
384 /* Extract MAC address */
385 memcpy(mvm
->addresses
[0].addr
, mvm
->nvm_data
->hw_addr
, ETH_ALEN
);
386 hw
->wiphy
->addresses
= mvm
->addresses
;
387 hw
->wiphy
->n_addresses
= 1;
389 /* Extract additional MAC addresses if available */
390 num_mac
= (mvm
->nvm_data
->n_hw_addrs
> 1) ?
391 min(IWL_MVM_MAX_ADDRESSES
, mvm
->nvm_data
->n_hw_addrs
) : 1;
393 for (i
= 1; i
< num_mac
; i
++) {
394 memcpy(mvm
->addresses
[i
].addr
, mvm
->addresses
[i
-1].addr
,
396 mvm
->addresses
[i
].addr
[5]++;
397 hw
->wiphy
->n_addresses
++;
400 iwl_mvm_reset_phy_ctxts(mvm
);
402 hw
->wiphy
->max_scan_ie_len
= iwl_mvm_max_scan_ie_len(mvm
, false);
404 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
406 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
407 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
408 &mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
];
409 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
].n_channels
)
410 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
411 &mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
];
413 hw
->wiphy
->hw_version
= mvm
->trans
->hw_id
;
415 if (iwlmvm_mod_params
.power_scheme
!= IWL_POWER_SCHEME_CAM
)
416 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
418 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
420 if (IWL_UCODE_API(mvm
->fw
->ucode_ver
) >= 10) {
421 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_SCHED_SCAN
;
422 hw
->wiphy
->max_sched_scan_ssids
= PROBE_OPTION_MAX
;
423 hw
->wiphy
->max_match_sets
= IWL_SCAN_MAX_PROFILES
;
424 /* we create the 802.11 header and zero length SSID IE. */
425 hw
->wiphy
->max_sched_scan_ie_len
=
426 SCAN_OFFLOAD_PROBE_REQ_SIZE
- 24 - 2;
429 hw
->wiphy
->features
|= NL80211_FEATURE_P2P_GO_CTWIN
|
430 NL80211_FEATURE_LOW_PRIORITY_SCAN
|
431 NL80211_FEATURE_P2P_GO_OPPPS
|
432 NL80211_FEATURE_DYNAMIC_SMPS
|
433 NL80211_FEATURE_STATIC_SMPS
|
434 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION
;
436 if (mvm
->fw
->ucode_capa
.capa
[0] &
437 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT
)
438 hw
->wiphy
->features
|= NL80211_FEATURE_TX_POWER_INSERTION
;
439 if (mvm
->fw
->ucode_capa
.capa
[0] &
440 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT
)
441 hw
->wiphy
->features
|= NL80211_FEATURE_QUIET
;
443 if (mvm
->fw
->ucode_capa
.capa
[0] &
444 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT
)
445 hw
->wiphy
->features
|=
446 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES
;
448 if (mvm
->fw
->ucode_capa
.capa
[0] &
449 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT
)
450 hw
->wiphy
->features
|= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES
;
452 mvm
->rts_threshold
= IEEE80211_MAX_RTS_THRESHOLD
;
454 /* currently FW API supports only one optional cipher scheme */
455 if (mvm
->fw
->cs
[0].cipher
) {
456 mvm
->hw
->n_cipher_schemes
= 1;
457 mvm
->hw
->cipher_schemes
= &mvm
->fw
->cs
[0];
460 #ifdef CONFIG_PM_SLEEP
461 if (iwl_mvm_is_d0i3_supported(mvm
) &&
462 device_can_wakeup(mvm
->trans
->dev
)) {
463 mvm
->wowlan
.flags
= WIPHY_WOWLAN_ANY
;
464 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
465 } else if (mvm
->fw
->img
[IWL_UCODE_WOWLAN
].sec
[0].len
&&
466 mvm
->trans
->ops
->d3_suspend
&&
467 mvm
->trans
->ops
->d3_resume
&&
468 device_can_wakeup(mvm
->trans
->dev
)) {
469 mvm
->wowlan
.flags
= WIPHY_WOWLAN_MAGIC_PKT
|
470 WIPHY_WOWLAN_DISCONNECT
|
471 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
472 WIPHY_WOWLAN_RFKILL_RELEASE
|
473 WIPHY_WOWLAN_NET_DETECT
;
474 if (!iwlwifi_mod_params
.sw_crypto
)
475 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
476 WIPHY_WOWLAN_GTK_REKEY_FAILURE
|
477 WIPHY_WOWLAN_4WAY_HANDSHAKE
;
479 mvm
->wowlan
.n_patterns
= IWL_WOWLAN_MAX_PATTERNS
;
480 mvm
->wowlan
.pattern_min_len
= IWL_WOWLAN_MIN_PATTERN_LEN
;
481 mvm
->wowlan
.pattern_max_len
= IWL_WOWLAN_MAX_PATTERN_LEN
;
482 mvm
->wowlan
.max_nd_match_sets
= IWL_SCAN_MAX_PROFILES
;
483 mvm
->wowlan
.tcp
= &iwl_mvm_wowlan_tcp_support
;
484 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
488 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
489 /* assign default bcast filtering configuration */
490 mvm
->bcast_filters
= iwl_mvm_default_bcast_filters
;
493 ret
= iwl_mvm_leds_init(mvm
);
497 if (mvm
->fw
->ucode_capa
.capa
[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT
) {
498 IWL_DEBUG_TDLS(mvm
, "TDLS supported\n");
499 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_TDLS
;
502 if (mvm
->fw
->ucode_capa
.capa
[0] &
503 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH
) {
504 IWL_DEBUG_TDLS(mvm
, "TDLS channel switch supported\n");
505 hw
->wiphy
->features
|= NL80211_FEATURE_TDLS_CHANNEL_SWITCH
;
508 ret
= ieee80211_register_hw(mvm
->hw
);
510 iwl_mvm_leds_exit(mvm
);
515 static bool iwl_mvm_defer_tx(struct iwl_mvm
*mvm
,
516 struct ieee80211_sta
*sta
,
519 struct iwl_mvm_sta
*mvmsta
;
523 * double check the IN_D0I3 flag both before and after
524 * taking the spinlock, in order to prevent taking
525 * the spinlock when not needed.
527 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
)))
530 spin_lock(&mvm
->d0i3_tx_lock
);
532 * testing the flag again ensures the skb dequeue
533 * loop (on d0i3 exit) hasn't run yet.
535 if (!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
))
538 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
539 if (mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
||
540 mvmsta
->sta_id
!= mvm
->d0i3_ap_sta_id
)
543 __skb_queue_tail(&mvm
->d0i3_tx
, skb
);
544 ieee80211_stop_queues(mvm
->hw
);
547 iwl_mvm_ref(mvm
, IWL_MVM_REF_TX
);
548 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX
);
552 spin_unlock(&mvm
->d0i3_tx_lock
);
556 static void iwl_mvm_mac_tx(struct ieee80211_hw
*hw
,
557 struct ieee80211_tx_control
*control
,
560 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
561 struct ieee80211_sta
*sta
= control
->sta
;
562 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
563 struct ieee80211_hdr
*hdr
= (void *)skb
->data
;
565 if (iwl_mvm_is_radio_killed(mvm
)) {
566 IWL_DEBUG_DROP(mvm
, "Dropping - RF/CT KILL\n");
570 if (IEEE80211_SKB_CB(skb
)->hw_queue
== IWL_MVM_OFFCHANNEL_QUEUE
&&
571 !test_bit(IWL_MVM_STATUS_ROC_RUNNING
, &mvm
->status
) &&
572 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING
, &mvm
->status
))
575 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
576 if (unlikely(info
->flags
& IEEE80211_TX_CTL_NO_PS_BUFFER
&&
577 ieee80211_is_mgmt(hdr
->frame_control
) &&
578 !ieee80211_is_deauth(hdr
->frame_control
) &&
579 !ieee80211_is_disassoc(hdr
->frame_control
) &&
580 !ieee80211_is_action(hdr
->frame_control
)))
584 if (iwl_mvm_defer_tx(mvm
, sta
, skb
))
586 if (iwl_mvm_tx_skb(mvm
, skb
, sta
))
591 if (iwl_mvm_tx_skb_non_sta(mvm
, skb
))
595 ieee80211_free_txskb(hw
, skb
);
598 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg
*cfg
)
600 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
)
605 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg
*cfg
)
607 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
)
609 if (iwlwifi_mod_params
.disable_11n
& IWL_ENABLE_HT_TXAGG
)
612 /* enabled by default */
616 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw
*hw
,
617 struct ieee80211_vif
*vif
,
618 enum ieee80211_ampdu_mlme_action action
,
619 struct ieee80211_sta
*sta
, u16 tid
,
620 u16
*ssn
, u8 buf_size
)
622 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
624 bool tx_agg_ref
= false;
626 IWL_DEBUG_HT(mvm
, "A-MPDU action on addr %pM tid %d: action %d\n",
627 sta
->addr
, tid
, action
);
629 if (!(mvm
->nvm_data
->sku_cap_11n_enable
))
632 /* return from D0i3 before starting a new Tx aggregation */
634 case IEEE80211_AMPDU_TX_START
:
635 case IEEE80211_AMPDU_TX_STOP_CONT
:
636 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
637 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
638 case IEEE80211_AMPDU_TX_OPERATIONAL
:
640 * for tx start, wait synchronously until D0i3 exit to
641 * get the correct sequence number for the tid.
642 * additionally, some other ampdu actions use direct
643 * target access, which is not handled automatically
644 * by the trans layer (unlike commands), so wait for
645 * d0i3 exit in these cases as well.
647 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_TX_AGG
);
657 mutex_lock(&mvm
->mutex
);
660 case IEEE80211_AMPDU_RX_START
:
661 if (!iwl_enable_rx_ampdu(mvm
->cfg
)) {
665 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, *ssn
, true);
667 case IEEE80211_AMPDU_RX_STOP
:
668 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, 0, false);
670 case IEEE80211_AMPDU_TX_START
:
671 if (!iwl_enable_tx_ampdu(mvm
->cfg
)) {
675 ret
= iwl_mvm_sta_tx_agg_start(mvm
, vif
, sta
, tid
, ssn
);
677 case IEEE80211_AMPDU_TX_STOP_CONT
:
678 ret
= iwl_mvm_sta_tx_agg_stop(mvm
, vif
, sta
, tid
);
680 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
681 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
682 ret
= iwl_mvm_sta_tx_agg_flush(mvm
, vif
, sta
, tid
);
684 case IEEE80211_AMPDU_TX_OPERATIONAL
:
685 ret
= iwl_mvm_sta_tx_agg_oper(mvm
, vif
, sta
, tid
, buf_size
);
692 mutex_unlock(&mvm
->mutex
);
695 * If the tid is marked as started, we won't use it for offloaded
696 * traffic on the next D0i3 entry. It's safe to unref.
699 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX_AGG
);
704 static void iwl_mvm_cleanup_iterator(void *data
, u8
*mac
,
705 struct ieee80211_vif
*vif
)
707 struct iwl_mvm
*mvm
= data
;
708 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
710 mvmvif
->uploaded
= false;
711 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
713 /* does this make sense at all? */
716 spin_lock_bh(&mvm
->time_event_lock
);
717 iwl_mvm_te_clear_data(mvm
, &mvmvif
->time_event_data
);
718 spin_unlock_bh(&mvm
->time_event_lock
);
720 mvmvif
->phy_ctxt
= NULL
;
721 memset(&mvmvif
->bf_data
, 0, sizeof(mvmvif
->bf_data
));
724 static ssize_t
iwl_mvm_read_coredump(char *buffer
, loff_t offset
, size_t count
,
725 const void *data
, size_t datalen
)
727 const struct iwl_mvm_dump_ptrs
*dump_ptrs
= data
;
729 ssize_t bytes_read_trans
;
731 if (offset
< dump_ptrs
->op_mode_len
) {
732 bytes_read
= min_t(ssize_t
, count
,
733 dump_ptrs
->op_mode_len
- offset
);
734 memcpy(buffer
, (u8
*)dump_ptrs
->op_mode_ptr
+ offset
,
736 offset
+= bytes_read
;
745 if (!dump_ptrs
->trans_ptr
)
748 offset
-= dump_ptrs
->op_mode_len
;
749 bytes_read_trans
= min_t(ssize_t
, count
,
750 dump_ptrs
->trans_ptr
->len
- offset
);
751 memcpy(buffer
+ bytes_read
,
752 (u8
*)dump_ptrs
->trans_ptr
->data
+ offset
,
755 return bytes_read
+ bytes_read_trans
;
758 static void iwl_mvm_free_coredump(const void *data
)
760 const struct iwl_mvm_dump_ptrs
*fw_error_dump
= data
;
762 vfree(fw_error_dump
->op_mode_ptr
);
763 vfree(fw_error_dump
->trans_ptr
);
764 kfree(fw_error_dump
);
767 void iwl_mvm_fw_error_dump(struct iwl_mvm
*mvm
)
769 struct iwl_fw_error_dump_file
*dump_file
;
770 struct iwl_fw_error_dump_data
*dump_data
;
771 struct iwl_fw_error_dump_info
*dump_info
;
772 struct iwl_mvm_dump_ptrs
*fw_error_dump
;
773 u32 sram_len
, sram_ofs
;
774 u32 file_len
, rxf_len
;
777 u32 smem_len
= mvm
->cfg
->smem_len
;
779 lockdep_assert_held(&mvm
->mutex
);
781 /* W/A for 8000 HW family A-step */
782 if (mvm
->cfg
->smem_len
&&
783 mvm
->cfg
->device_family
== IWL_DEVICE_FAMILY_8000
&&
784 CSR_HW_REV_STEP(mvm
->trans
->hw_rev
) == SILICON_A_STEP
)
787 fw_error_dump
= kzalloc(sizeof(*fw_error_dump
), GFP_KERNEL
);
791 /* SRAM - include stack CCM if driver knows the values for it */
792 if (!mvm
->cfg
->dccm_offset
|| !mvm
->cfg
->dccm_len
) {
793 const struct fw_img
*img
;
795 img
= &mvm
->fw
->img
[mvm
->cur_ucode
];
796 sram_ofs
= img
->sec
[IWL_UCODE_SECTION_DATA
].offset
;
797 sram_len
= img
->sec
[IWL_UCODE_SECTION_DATA
].len
;
799 sram_ofs
= mvm
->cfg
->dccm_offset
;
800 sram_len
= mvm
->cfg
->dccm_len
;
803 /* reading buffer size */
804 reg_val
= iwl_trans_read_prph(mvm
->trans
, RXF_SIZE_ADDR
);
805 rxf_len
= (reg_val
& RXF_SIZE_BYTE_CNT_MSK
) >> RXF_SIZE_BYTE_CND_POS
;
807 /* the register holds the value divided by 128 */
808 rxf_len
= rxf_len
<< 7;
810 file_len
= sizeof(*dump_file
) +
811 sizeof(*dump_data
) * 3 +
816 /* Make room for the SMEM, if it exists */
818 file_len
+= sizeof(*dump_data
) + smem_len
;
820 dump_file
= vzalloc(file_len
);
822 kfree(fw_error_dump
);
826 fw_error_dump
->op_mode_ptr
= dump_file
;
828 dump_file
->barker
= cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER
);
829 dump_data
= (void *)dump_file
->data
;
831 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO
);
832 dump_data
->len
= cpu_to_le32(sizeof(*dump_info
));
833 dump_info
= (void *) dump_data
->data
;
834 dump_info
->device_family
=
835 mvm
->cfg
->device_family
== IWL_DEVICE_FAMILY_7000
?
836 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7
) :
837 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8
);
838 dump_info
->hw_step
= cpu_to_le32(CSR_HW_REV_STEP(mvm
->trans
->hw_rev
));
839 memcpy(dump_info
->fw_human_readable
, mvm
->fw
->human_readable
,
840 sizeof(dump_info
->fw_human_readable
));
841 strncpy(dump_info
->dev_human_readable
, mvm
->cfg
->name
,
842 sizeof(dump_info
->dev_human_readable
));
843 strncpy(dump_info
->bus_human_readable
, mvm
->dev
->bus
->name
,
844 sizeof(dump_info
->bus_human_readable
));
846 dump_data
= iwl_fw_error_next_data(dump_data
);
847 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_RXF
);
848 dump_data
->len
= cpu_to_le32(rxf_len
);
850 if (iwl_trans_grab_nic_access(mvm
->trans
, false, &flags
)) {
851 u32
*rxf
= (void *)dump_data
->data
;
854 for (i
= 0; i
< (rxf_len
/ sizeof(u32
)); i
++) {
855 iwl_trans_write_prph(mvm
->trans
,
856 RXF_LD_FENCE_OFFSET_ADDR
,
858 rxf
[i
] = iwl_trans_read_prph(mvm
->trans
,
859 RXF_FIFO_RD_FENCE_ADDR
);
861 iwl_trans_release_nic_access(mvm
->trans
, &flags
);
864 dump_data
= iwl_fw_error_next_data(dump_data
);
865 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM
);
866 dump_data
->len
= cpu_to_le32(sram_len
);
867 iwl_trans_read_mem_bytes(mvm
->trans
, sram_ofs
, dump_data
->data
,
871 dump_data
= iwl_fw_error_next_data(dump_data
);
872 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_SMEM
);
873 dump_data
->len
= cpu_to_le32(smem_len
);
874 iwl_trans_read_mem_bytes(mvm
->trans
, mvm
->cfg
->smem_offset
,
875 dump_data
->data
, smem_len
);
878 fw_error_dump
->trans_ptr
= iwl_trans_dump_data(mvm
->trans
);
879 fw_error_dump
->op_mode_len
= file_len
;
880 if (fw_error_dump
->trans_ptr
)
881 file_len
+= fw_error_dump
->trans_ptr
->len
;
882 dump_file
->file_len
= cpu_to_le32(file_len
);
884 dev_coredumpm(mvm
->trans
->dev
, THIS_MODULE
, fw_error_dump
, 0,
885 GFP_KERNEL
, iwl_mvm_read_coredump
, iwl_mvm_free_coredump
);
888 static void iwl_mvm_restart_cleanup(struct iwl_mvm
*mvm
)
890 /* clear the D3 reconfig, we only need it to avoid dumping a
891 * firmware coredump on reconfiguration, we shouldn't do that
892 * on D3->D0 transition
894 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG
, &mvm
->status
))
895 iwl_mvm_fw_error_dump(mvm
);
897 iwl_trans_stop_device(mvm
->trans
);
899 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
900 mvm
->ps_disabled
= false;
901 mvm
->calibrating
= false;
903 /* just in case one was running */
904 ieee80211_remain_on_channel_expired(mvm
->hw
);
906 ieee80211_iterate_active_interfaces_atomic(
907 mvm
->hw
, IEEE80211_IFACE_ITER_RESUME_ALL
,
908 iwl_mvm_cleanup_iterator
, mvm
);
910 mvm
->p2p_device_vif
= NULL
;
911 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
913 iwl_mvm_reset_phy_ctxts(mvm
);
914 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
915 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
916 memset(mvm
->tfd_drained
, 0, sizeof(mvm
->tfd_drained
));
917 memset(&mvm
->last_bt_notif
, 0, sizeof(mvm
->last_bt_notif
));
918 memset(&mvm
->last_bt_notif_old
, 0, sizeof(mvm
->last_bt_notif_old
));
919 memset(&mvm
->last_bt_ci_cmd
, 0, sizeof(mvm
->last_bt_ci_cmd
));
920 memset(&mvm
->last_bt_ci_cmd_old
, 0, sizeof(mvm
->last_bt_ci_cmd_old
));
921 memset(&mvm
->bt_ack_kill_msk
, 0, sizeof(mvm
->bt_ack_kill_msk
));
922 memset(&mvm
->bt_cts_kill_msk
, 0, sizeof(mvm
->bt_cts_kill_msk
));
924 ieee80211_wake_queues(mvm
->hw
);
926 /* cleanup all stale references (scan, roc), but keep the
927 * ucode_down ref until reconfig is complete */
928 iwl_mvm_unref_all_except(mvm
, IWL_MVM_REF_UCODE_DOWN
);
930 /* clear any stale d0i3 state */
931 clear_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
);
934 mvm
->rx_ba_sessions
= 0;
937 int __iwl_mvm_mac_start(struct iwl_mvm
*mvm
)
941 lockdep_assert_held(&mvm
->mutex
);
943 /* Clean up some internal and mac80211 state on restart */
944 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
945 iwl_mvm_restart_cleanup(mvm
);
947 ret
= iwl_mvm_up(mvm
);
949 if (ret
&& test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
950 /* Something went wrong - we need to finish some cleanup
951 * that normally iwl_mvm_mac_restart_complete() below
954 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
955 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
961 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
963 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
966 mutex_lock(&mvm
->mutex
);
967 ret
= __iwl_mvm_mac_start(mvm
);
968 mutex_unlock(&mvm
->mutex
);
973 static void iwl_mvm_restart_complete(struct iwl_mvm
*mvm
)
977 mutex_lock(&mvm
->mutex
);
979 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
980 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
981 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
983 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
986 /* allow transport/FW low power modes */
987 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
990 * If we have TDLS peers, remove them. We don't know the last seqno/PN
991 * of packets the FW sent out, so we must reconnect.
993 iwl_mvm_teardown_tdls_peers(mvm
);
995 mutex_unlock(&mvm
->mutex
);
998 static void iwl_mvm_resume_complete(struct iwl_mvm
*mvm
)
1002 if (!iwl_mvm_is_d0i3_supported(mvm
))
1005 mutex_lock(&mvm
->d0i3_suspend_mutex
);
1006 __clear_bit(D0I3_DEFER_WAKEUP
, &mvm
->d0i3_suspend_flags
);
1007 exit_now
= __test_and_clear_bit(D0I3_PENDING_WAKEUP
,
1008 &mvm
->d0i3_suspend_flags
);
1009 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
1012 IWL_DEBUG_RPM(mvm
, "Run deferred d0i3 exit\n");
1013 _iwl_mvm_exit_d0i3(mvm
);
1018 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw
*hw
,
1019 enum ieee80211_reconfig_type reconfig_type
)
1021 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1023 switch (reconfig_type
) {
1024 case IEEE80211_RECONFIG_TYPE_RESTART
:
1025 iwl_mvm_restart_complete(mvm
);
1027 case IEEE80211_RECONFIG_TYPE_SUSPEND
:
1028 iwl_mvm_resume_complete(mvm
);
1033 void __iwl_mvm_mac_stop(struct iwl_mvm
*mvm
)
1035 lockdep_assert_held(&mvm
->mutex
);
1037 /* disallow low power states when the FW is down */
1038 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1040 /* async_handlers_wk is now blocked */
1043 * The work item could be running or queued if the
1044 * ROC time event stops just as we get here.
1046 cancel_work_sync(&mvm
->roc_done_wk
);
1048 iwl_trans_stop_device(mvm
->trans
);
1050 iwl_mvm_async_handlers_purge(mvm
);
1051 /* async_handlers_list is empty and will stay empty: HW is stopped */
1053 /* the fw is stopped, the aux sta is dead: clean up driver state */
1054 iwl_mvm_del_aux_sta(mvm
);
1056 mvm
->ucode_loaded
= false;
1059 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
1061 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1063 flush_work(&mvm
->d0i3_exit_work
);
1064 flush_work(&mvm
->async_handlers_wk
);
1065 flush_work(&mvm
->fw_error_dump_wk
);
1067 mutex_lock(&mvm
->mutex
);
1068 __iwl_mvm_mac_stop(mvm
);
1069 mutex_unlock(&mvm
->mutex
);
1072 * The worker might have been waiting for the mutex, let it run and
1073 * discover that its list is now empty.
1075 cancel_work_sync(&mvm
->async_handlers_wk
);
1078 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
1082 lockdep_assert_held(&mvm
->mutex
);
1084 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
1085 if (!mvm
->phy_ctxts
[i
].ref
)
1086 return &mvm
->phy_ctxts
[i
];
1088 IWL_ERR(mvm
, "No available PHY context\n");
1092 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
1095 /* FW is in charge of regulatory enforcement */
1096 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd
= {
1097 .mac_context_id
= iwl_mvm_vif_from_mac80211(vif
)->id
,
1098 .pwr_restriction
= cpu_to_le16(tx_power
),
1101 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, 0,
1102 sizeof(reduce_txpwr_cmd
),
1106 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
1107 struct ieee80211_vif
*vif
)
1109 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1110 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1114 * make sure D0i3 exit is completed, otherwise a target access
1115 * during tx queue configuration could be done when still in
1118 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_ADD_IF
);
1123 * Not much to do here. The stack will not allow interface
1124 * types or combinations that we didn't advertise, so we
1125 * don't really have to check the types.
1128 mutex_lock(&mvm
->mutex
);
1130 /* Allocate resources for the MAC context, and add it to the fw */
1131 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
1135 /* Counting number of interfaces is needed for legacy PM */
1136 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1140 * The AP binding flow can be done only after the beacon
1141 * template is configured (which happens only in the mac80211
1142 * start_ap() flow), and adding the broadcast station can happen
1143 * only after the binding.
1144 * In addition, since modifying the MAC before adding a bcast
1145 * station is not allowed by the FW, delay the adding of MAC context to
1146 * the point where we can also add the bcast station.
1147 * In short: there's not much we can do at this point, other than
1148 * allocating resources :)
1150 if (vif
->type
== NL80211_IFTYPE_AP
||
1151 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1152 ret
= iwl_mvm_alloc_bcast_sta(mvm
, vif
);
1154 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
1158 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1162 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1166 ret
= iwl_mvm_power_update_mac(mvm
);
1170 /* beacon filtering */
1171 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
1173 goto out_remove_mac
;
1175 if (!mvm
->bf_allowed_vif
&&
1176 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
) {
1177 mvm
->bf_allowed_vif
= mvmvif
;
1178 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
1179 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
1183 * P2P_DEVICE interface does not have a channel context assigned to it,
1184 * so a dedicated PHY context is allocated to it and the corresponding
1185 * MAC context is bound to it at this stage.
1187 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1189 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1190 if (!mvmvif
->phy_ctxt
) {
1195 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1196 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1200 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
);
1204 /* Save a pointer to p2p device vif, so it can later be used to
1205 * update the p2p device MAC when a GO is started/stopped */
1206 mvm
->p2p_device_vif
= vif
;
1209 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1213 iwl_mvm_binding_remove_vif(mvm
, vif
);
1215 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1217 if (mvm
->bf_allowed_vif
== mvmvif
) {
1218 mvm
->bf_allowed_vif
= NULL
;
1219 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1220 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1223 mvmvif
->phy_ctxt
= NULL
;
1224 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1226 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1229 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1231 mutex_unlock(&mvm
->mutex
);
1233 iwl_mvm_unref(mvm
, IWL_MVM_REF_ADD_IF
);
1238 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
1239 struct ieee80211_vif
*vif
)
1241 u32 tfd_msk
= iwl_mvm_mac_get_queues_mask(vif
);
1244 mutex_lock(&mvm
->mutex
);
1245 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, true);
1246 mutex_unlock(&mvm
->mutex
);
1249 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1251 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1252 * We assume here that all the packets sent to the OFFCHANNEL
1253 * queue are sent in ROC session.
1255 flush_work(&mvm
->roc_done_wk
);
1258 * By now, all the AC queues are empty. The AGG queues are
1259 * empty too. We already got all the Tx responses for all the
1260 * packets in the queues. The drain work can have been
1261 * triggered. Flush it.
1263 flush_work(&mvm
->sta_drained_wk
);
1267 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
1268 struct ieee80211_vif
*vif
)
1270 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1271 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1273 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1275 mutex_lock(&mvm
->mutex
);
1277 if (mvm
->bf_allowed_vif
== mvmvif
) {
1278 mvm
->bf_allowed_vif
= NULL
;
1279 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1280 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1283 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
1286 * For AP/GO interface, the tear down of the resources allocated to the
1287 * interface is be handled as part of the stop_ap flow.
1289 if (vif
->type
== NL80211_IFTYPE_AP
||
1290 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1291 #ifdef CONFIG_NL80211_TESTMODE
1292 if (vif
== mvm
->noa_vif
) {
1293 mvm
->noa_vif
= NULL
;
1294 mvm
->noa_duration
= 0;
1297 iwl_mvm_dealloc_bcast_sta(mvm
, vif
);
1301 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1302 mvm
->p2p_device_vif
= NULL
;
1303 iwl_mvm_rm_bcast_sta(mvm
, vif
);
1304 iwl_mvm_binding_remove_vif(mvm
, vif
);
1305 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1306 mvmvif
->phy_ctxt
= NULL
;
1309 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1312 iwl_mvm_power_update_mac(mvm
);
1313 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1316 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1317 mutex_unlock(&mvm
->mutex
);
1320 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
1325 struct iwl_mvm_mc_iter_data
{
1326 struct iwl_mvm
*mvm
;
1330 static void iwl_mvm_mc_iface_iterator(void *_data
, u8
*mac
,
1331 struct ieee80211_vif
*vif
)
1333 struct iwl_mvm_mc_iter_data
*data
= _data
;
1334 struct iwl_mvm
*mvm
= data
->mvm
;
1335 struct iwl_mcast_filter_cmd
*cmd
= mvm
->mcast_filter_cmd
;
1338 /* if we don't have free ports, mcast frames will be dropped */
1339 if (WARN_ON_ONCE(data
->port_id
>= MAX_PORT_ID_NUM
))
1342 if (vif
->type
!= NL80211_IFTYPE_STATION
||
1343 !vif
->bss_conf
.assoc
)
1346 cmd
->port_id
= data
->port_id
++;
1347 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
1348 len
= roundup(sizeof(*cmd
) + cmd
->count
* ETH_ALEN
, 4);
1350 ret
= iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_ASYNC
, len
, cmd
);
1352 IWL_ERR(mvm
, "mcast filter cmd error. ret=%d\n", ret
);
1355 static void iwl_mvm_recalc_multicast(struct iwl_mvm
*mvm
)
1357 struct iwl_mvm_mc_iter_data iter_data
= {
1361 lockdep_assert_held(&mvm
->mutex
);
1363 if (WARN_ON_ONCE(!mvm
->mcast_filter_cmd
))
1366 ieee80211_iterate_active_interfaces_atomic(
1367 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1368 iwl_mvm_mc_iface_iterator
, &iter_data
);
1371 static u64
iwl_mvm_prepare_multicast(struct ieee80211_hw
*hw
,
1372 struct netdev_hw_addr_list
*mc_list
)
1374 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1375 struct iwl_mcast_filter_cmd
*cmd
;
1376 struct netdev_hw_addr
*addr
;
1381 addr_count
= netdev_hw_addr_list_count(mc_list
);
1382 pass_all
= addr_count
> MAX_MCAST_FILTERING_ADDRESSES
||
1383 IWL_MVM_FW_MCAST_FILTER_PASS_ALL
;
1387 len
= roundup(sizeof(*cmd
) + addr_count
* ETH_ALEN
, 4);
1388 cmd
= kzalloc(len
, GFP_ATOMIC
);
1394 return (u64
)(unsigned long)cmd
;
1397 netdev_hw_addr_list_for_each(addr
, mc_list
) {
1398 IWL_DEBUG_MAC80211(mvm
, "mcast addr (%d): %pM\n",
1399 cmd
->count
, addr
->addr
);
1400 memcpy(&cmd
->addr_list
[cmd
->count
* ETH_ALEN
],
1401 addr
->addr
, ETH_ALEN
);
1405 return (u64
)(unsigned long)cmd
;
1408 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
1409 unsigned int changed_flags
,
1410 unsigned int *total_flags
,
1413 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1414 struct iwl_mcast_filter_cmd
*cmd
= (void *)(unsigned long)multicast
;
1416 mutex_lock(&mvm
->mutex
);
1418 /* replace previous configuration */
1419 kfree(mvm
->mcast_filter_cmd
);
1420 mvm
->mcast_filter_cmd
= cmd
;
1425 iwl_mvm_recalc_multicast(mvm
);
1427 mutex_unlock(&mvm
->mutex
);
1431 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1432 struct iwl_bcast_iter_data
{
1433 struct iwl_mvm
*mvm
;
1434 struct iwl_bcast_filter_cmd
*cmd
;
1439 iwl_mvm_set_bcast_filter(struct ieee80211_vif
*vif
,
1440 const struct iwl_fw_bcast_filter
*in_filter
,
1441 struct iwl_fw_bcast_filter
*out_filter
)
1443 struct iwl_fw_bcast_filter_attr
*attr
;
1446 memcpy(out_filter
, in_filter
, sizeof(*out_filter
));
1448 for (i
= 0; i
< ARRAY_SIZE(out_filter
->attrs
); i
++) {
1449 attr
= &out_filter
->attrs
[i
];
1454 switch (attr
->reserved1
) {
1455 case cpu_to_le16(BC_FILTER_MAGIC_IP
):
1456 if (vif
->bss_conf
.arp_addr_cnt
!= 1) {
1461 attr
->val
= vif
->bss_conf
.arp_addr_list
[0];
1463 case cpu_to_le16(BC_FILTER_MAGIC_MAC
):
1464 attr
->val
= *(__be32
*)&vif
->addr
[2];
1469 attr
->reserved1
= 0;
1470 out_filter
->num_attrs
++;
1474 static void iwl_mvm_bcast_filter_iterator(void *_data
, u8
*mac
,
1475 struct ieee80211_vif
*vif
)
1477 struct iwl_bcast_iter_data
*data
= _data
;
1478 struct iwl_mvm
*mvm
= data
->mvm
;
1479 struct iwl_bcast_filter_cmd
*cmd
= data
->cmd
;
1480 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1481 struct iwl_fw_bcast_mac
*bcast_mac
;
1484 if (WARN_ON(mvmvif
->id
>= ARRAY_SIZE(cmd
->macs
)))
1487 bcast_mac
= &cmd
->macs
[mvmvif
->id
];
1490 * enable filtering only for associated stations, but not for P2P
1493 if (vif
->type
!= NL80211_IFTYPE_STATION
|| vif
->p2p
||
1494 !vif
->bss_conf
.assoc
)
1497 bcast_mac
->default_discard
= 1;
1499 /* copy all configured filters */
1500 for (i
= 0; mvm
->bcast_filters
[i
].attrs
[0].mask
; i
++) {
1502 * Make sure we don't exceed our filters limit.
1503 * if there is still a valid filter to be configured,
1504 * be on the safe side and just allow bcast for this mac.
1506 if (WARN_ON_ONCE(data
->current_filter
>=
1507 ARRAY_SIZE(cmd
->filters
))) {
1508 bcast_mac
->default_discard
= 0;
1509 bcast_mac
->attached_filters
= 0;
1513 iwl_mvm_set_bcast_filter(vif
,
1514 &mvm
->bcast_filters
[i
],
1515 &cmd
->filters
[data
->current_filter
]);
1517 /* skip current filter if it contains no attributes */
1518 if (!cmd
->filters
[data
->current_filter
].num_attrs
)
1521 /* attach the filter to current mac */
1522 bcast_mac
->attached_filters
|=
1523 cpu_to_le16(BIT(data
->current_filter
));
1525 data
->current_filter
++;
1529 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm
*mvm
,
1530 struct iwl_bcast_filter_cmd
*cmd
)
1532 struct iwl_bcast_iter_data iter_data
= {
1537 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL
)
1540 memset(cmd
, 0, sizeof(*cmd
));
1541 cmd
->max_bcast_filters
= ARRAY_SIZE(cmd
->filters
);
1542 cmd
->max_macs
= ARRAY_SIZE(cmd
->macs
);
1544 #ifdef CONFIG_IWLWIFI_DEBUGFS
1545 /* use debugfs filters/macs if override is configured */
1546 if (mvm
->dbgfs_bcast_filtering
.override
) {
1547 memcpy(cmd
->filters
, &mvm
->dbgfs_bcast_filtering
.cmd
.filters
,
1548 sizeof(cmd
->filters
));
1549 memcpy(cmd
->macs
, &mvm
->dbgfs_bcast_filtering
.cmd
.macs
,
1555 /* if no filters are configured, do nothing */
1556 if (!mvm
->bcast_filters
)
1559 /* configure and attach these filters for each associated sta vif */
1560 ieee80211_iterate_active_interfaces(
1561 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1562 iwl_mvm_bcast_filter_iterator
, &iter_data
);
1566 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1567 struct ieee80211_vif
*vif
)
1569 struct iwl_bcast_filter_cmd cmd
;
1571 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BCAST_FILTERING
))
1574 if (!iwl_mvm_bcast_filter_build_cmd(mvm
, &cmd
))
1577 return iwl_mvm_send_cmd_pdu(mvm
, BCAST_FILTER_CMD
, 0,
1581 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
1582 struct ieee80211_vif
*vif
)
1588 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
1589 struct ieee80211_vif
*vif
,
1590 struct ieee80211_bss_conf
*bss_conf
,
1593 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1597 * Re-calculate the tsf id, as the master-slave relations depend on the
1598 * beacon interval, which was not known when the station interface was
1601 if (changes
& BSS_CHANGED_ASSOC
&& bss_conf
->assoc
)
1602 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1605 * If we're not associated yet, take the (new) BSSID before associating
1606 * so the firmware knows. If we're already associated, then use the old
1607 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1608 * branch for disassociation below.
1610 if (changes
& BSS_CHANGED_BSSID
&& !mvmvif
->associated
)
1611 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1613 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, mvmvif
->bssid
);
1615 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1617 /* after sending it once, adopt mac80211 data */
1618 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1619 mvmvif
->associated
= bss_conf
->assoc
;
1621 if (changes
& BSS_CHANGED_ASSOC
) {
1622 if (bss_conf
->assoc
) {
1623 /* add quota for this interface */
1624 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1626 IWL_ERR(mvm
, "failed to update quotas\n");
1630 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
1633 * If we're restarting then the firmware will
1634 * obviously have lost synchronisation with
1635 * the AP. It will attempt to synchronise by
1636 * itself, but we can make it more reliable by
1637 * scheduling a session protection time event.
1639 * The firmware needs to receive a beacon to
1640 * catch up with synchronisation, use 110% of
1641 * the beacon interval.
1643 * Set a large maximum delay to allow for more
1644 * than a single interface.
1646 u32 dur
= (11 * vif
->bss_conf
.beacon_int
) / 10;
1647 iwl_mvm_protect_session(mvm
, vif
, dur
, dur
,
1651 iwl_mvm_sf_update(mvm
, vif
, false);
1652 iwl_mvm_power_vif_assoc(mvm
, vif
);
1654 iwl_mvm_ref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1655 iwl_mvm_update_smps(mvm
, vif
,
1656 IWL_MVM_SMPS_REQ_PROT
,
1657 IEEE80211_SMPS_DYNAMIC
);
1659 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_STATION_COUNT
) {
1661 * If update fails - SF might be running in associated
1662 * mode while disassociated - which is forbidden.
1664 WARN_ONCE(iwl_mvm_sf_update(mvm
, vif
, false),
1665 "Failed to update SF upon disassociation\n");
1667 /* remove AP station now that the MAC is unassoc */
1668 ret
= iwl_mvm_rm_sta_id(mvm
, vif
, mvmvif
->ap_sta_id
);
1670 IWL_ERR(mvm
, "failed to remove AP station\n");
1672 if (mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
1673 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1674 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
1675 /* remove quota for this interface */
1676 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1678 IWL_ERR(mvm
, "failed to update quotas\n");
1681 iwl_mvm_unref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1683 /* this will take the cleared BSSID from bss_conf */
1684 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
1687 "failed to update MAC %pM (clear after unassoc)\n",
1691 iwl_mvm_recalc_multicast(mvm
);
1692 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1694 /* reset rssi values */
1695 mvmvif
->bf_data
.ave_beacon_signal
= 0;
1697 iwl_mvm_bt_coex_vif_change(mvm
);
1698 iwl_mvm_update_smps(mvm
, vif
, IWL_MVM_SMPS_REQ_TT
,
1699 IEEE80211_SMPS_AUTOMATIC
);
1700 } else if (changes
& BSS_CHANGED_BEACON_INFO
) {
1702 * We received a beacon _after_ association so
1703 * remove the session protection.
1705 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1706 &mvmvif
->time_event_data
);
1709 if (changes
& BSS_CHANGED_BEACON_INFO
) {
1710 iwl_mvm_sf_update(mvm
, vif
, false);
1711 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
1714 if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_P2P_PS
| BSS_CHANGED_QOS
)) {
1715 ret
= iwl_mvm_power_update_mac(mvm
);
1717 IWL_ERR(mvm
, "failed to update power mode\n");
1720 if (changes
& BSS_CHANGED_TXPOWER
) {
1721 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
1723 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
1726 if (changes
& BSS_CHANGED_CQM
) {
1727 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed\n");
1728 /* reset cqm events tracking */
1729 mvmvif
->bf_data
.last_cqm_event
= 0;
1730 if (mvmvif
->bf_data
.bf_enabled
) {
1731 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
1734 "failed to update CQM thresholds\n");
1738 if (changes
& BSS_CHANGED_ARP_FILTER
) {
1739 IWL_DEBUG_MAC80211(mvm
, "arp filter changed\n");
1740 iwl_mvm_configure_bcast_filter(mvm
, vif
);
1744 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw
*hw
,
1745 struct ieee80211_vif
*vif
)
1747 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1748 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1752 * iwl_mvm_mac_ctxt_add() might read directly from the device
1753 * (the system time), so make sure it is available.
1755 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_START_AP
);
1759 mutex_lock(&mvm
->mutex
);
1761 /* Send the beacon template */
1762 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
1767 * Re-calculate the tsf id, as the master-slave relations depend on the
1768 * beacon interval, which was not known when the AP interface was added.
1770 if (vif
->type
== NL80211_IFTYPE_AP
)
1771 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1773 /* Add the mac context */
1774 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1778 /* Perform the binding */
1779 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1783 /* Send the bcast station. At this stage the TBTT and DTIM time events
1784 * are added and applied to the scheduler */
1785 ret
= iwl_mvm_send_add_bcast_sta(mvm
, vif
);
1789 /* must be set before quota calculations */
1790 mvmvif
->ap_ibss_active
= true;
1792 /* power updated needs to be done before quotas */
1793 iwl_mvm_power_update_mac(mvm
);
1795 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
1797 goto out_quota_failed
;
1799 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1800 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1801 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
1803 iwl_mvm_ref(mvm
, IWL_MVM_REF_AP_IBSS
);
1805 iwl_mvm_bt_coex_vif_change(mvm
);
1807 /* we don't support TDLS during DCM */
1808 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
1809 iwl_mvm_teardown_tdls_peers(mvm
);
1811 mutex_unlock(&mvm
->mutex
);
1815 iwl_mvm_power_update_mac(mvm
);
1816 mvmvif
->ap_ibss_active
= false;
1817 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
1819 iwl_mvm_binding_remove_vif(mvm
, vif
);
1821 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1823 mutex_unlock(&mvm
->mutex
);
1824 iwl_mvm_unref(mvm
, IWL_MVM_REF_START_AP
);
1828 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw
*hw
,
1829 struct ieee80211_vif
*vif
)
1831 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1832 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1834 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1836 mutex_lock(&mvm
->mutex
);
1838 /* Handle AP stop while in CSA */
1839 if (rcu_access_pointer(mvm
->csa_vif
) == vif
) {
1840 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1841 &mvmvif
->time_event_data
);
1842 RCU_INIT_POINTER(mvm
->csa_vif
, NULL
);
1845 if (rcu_access_pointer(mvm
->csa_tx_blocked_vif
) == vif
) {
1846 RCU_INIT_POINTER(mvm
->csa_tx_blocked_vif
, NULL
);
1847 mvm
->csa_tx_block_bcn_timeout
= 0;
1850 mvmvif
->ap_ibss_active
= false;
1851 mvm
->ap_last_beacon_gp2
= 0;
1853 iwl_mvm_bt_coex_vif_change(mvm
);
1855 iwl_mvm_unref(mvm
, IWL_MVM_REF_AP_IBSS
);
1857 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
1858 if (vif
->p2p
&& mvm
->p2p_device_vif
)
1859 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
1861 iwl_mvm_update_quotas(mvm
, NULL
);
1862 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
1863 iwl_mvm_binding_remove_vif(mvm
, vif
);
1865 iwl_mvm_power_update_mac(mvm
);
1867 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1869 mutex_unlock(&mvm
->mutex
);
1873 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm
*mvm
,
1874 struct ieee80211_vif
*vif
,
1875 struct ieee80211_bss_conf
*bss_conf
,
1878 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1880 /* Changes will be applied when the AP/IBSS is started */
1881 if (!mvmvif
->ap_ibss_active
)
1884 if (changes
& (BSS_CHANGED_ERP_CTS_PROT
| BSS_CHANGED_HT
|
1885 BSS_CHANGED_BANDWIDTH
| BSS_CHANGED_QOS
) &&
1886 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
))
1887 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1889 /* Need to send a new beacon template to the FW */
1890 if (changes
& BSS_CHANGED_BEACON
&&
1891 iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
1892 IWL_WARN(mvm
, "Failed updating beacon data\n");
1894 if (changes
& BSS_CHANGED_TXPOWER
) {
1895 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
1897 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
1902 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
1903 struct ieee80211_vif
*vif
,
1904 struct ieee80211_bss_conf
*bss_conf
,
1907 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1910 * iwl_mvm_bss_info_changed_station() might call
1911 * iwl_mvm_protect_session(), which reads directly from
1912 * the device (the system time), so make sure it is available.
1914 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_BSS_CHANGED
))
1917 mutex_lock(&mvm
->mutex
);
1919 if (changes
& BSS_CHANGED_IDLE
&& !bss_conf
->idle
)
1920 iwl_mvm_scan_offload_stop(mvm
, true);
1922 switch (vif
->type
) {
1923 case NL80211_IFTYPE_STATION
:
1924 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
1926 case NL80211_IFTYPE_AP
:
1927 case NL80211_IFTYPE_ADHOC
:
1928 iwl_mvm_bss_info_changed_ap_ibss(mvm
, vif
, bss_conf
, changes
);
1931 /* shouldn't happen */
1935 mutex_unlock(&mvm
->mutex
);
1936 iwl_mvm_unref(mvm
, IWL_MVM_REF_BSS_CHANGED
);
1939 static int iwl_mvm_cancel_scan_wait_notif(struct iwl_mvm
*mvm
,
1940 enum iwl_scan_status scan_type
)
1943 bool wait_for_handlers
= false;
1945 mutex_lock(&mvm
->mutex
);
1947 if (mvm
->scan_status
!= scan_type
) {
1949 /* make sure there are no pending notifications */
1950 wait_for_handlers
= true;
1954 switch (scan_type
) {
1955 case IWL_MVM_SCAN_SCHED
:
1956 ret
= iwl_mvm_scan_offload_stop(mvm
, true);
1958 case IWL_MVM_SCAN_OS
:
1959 ret
= iwl_mvm_cancel_scan(mvm
);
1961 case IWL_MVM_SCAN_NONE
:
1970 wait_for_handlers
= true;
1972 mutex_unlock(&mvm
->mutex
);
1974 /* make sure we consume the completion notification */
1975 if (wait_for_handlers
)
1976 iwl_mvm_wait_for_async_handlers(mvm
);
1980 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
1981 struct ieee80211_vif
*vif
,
1982 struct ieee80211_scan_request
*hw_req
)
1984 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1985 struct cfg80211_scan_request
*req
= &hw_req
->req
;
1988 if (req
->n_channels
== 0 ||
1989 req
->n_channels
> mvm
->fw
->ucode_capa
.n_scan_channels
)
1992 if (!(mvm
->fw
->ucode_capa
.capa
[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN
)) {
1993 ret
= iwl_mvm_cancel_scan_wait_notif(mvm
, IWL_MVM_SCAN_SCHED
);
1998 mutex_lock(&mvm
->mutex
);
2000 if (mvm
->scan_status
!= IWL_MVM_SCAN_NONE
) {
2005 iwl_mvm_ref(mvm
, IWL_MVM_REF_SCAN
);
2007 if (mvm
->fw
->ucode_capa
.capa
[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN
)
2008 ret
= iwl_mvm_scan_umac(mvm
, vif
, hw_req
);
2009 else if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
)
2010 ret
= iwl_mvm_unified_scan_lmac(mvm
, vif
, hw_req
);
2012 ret
= iwl_mvm_scan_request(mvm
, vif
, req
);
2015 iwl_mvm_unref(mvm
, IWL_MVM_REF_SCAN
);
2017 mutex_unlock(&mvm
->mutex
);
2021 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
2022 struct ieee80211_vif
*vif
)
2024 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2026 mutex_lock(&mvm
->mutex
);
2028 iwl_mvm_cancel_scan(mvm
);
2030 mutex_unlock(&mvm
->mutex
);
2034 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
2035 struct ieee80211_sta
*sta
, u16 tids
,
2037 enum ieee80211_frame_release_type reason
,
2040 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2042 /* Called when we need to transmit (a) frame(s) from mac80211 */
2044 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2045 tids
, more_data
, false);
2049 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw
*hw
,
2050 struct ieee80211_sta
*sta
, u16 tids
,
2052 enum ieee80211_frame_release_type reason
,
2055 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2057 /* Called when we need to transmit (a) frame(s) from agg queue */
2059 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2060 tids
, more_data
, true);
2063 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
2064 struct ieee80211_vif
*vif
,
2065 enum sta_notify_cmd cmd
,
2066 struct ieee80211_sta
*sta
)
2068 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2069 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2073 case STA_NOTIFY_SLEEP
:
2074 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
2075 ieee80211_sta_block_awake(hw
, sta
, true);
2076 spin_lock_bh(&mvmsta
->lock
);
2077 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
2078 struct iwl_mvm_tid_data
*tid_data
;
2080 tid_data
= &mvmsta
->tid_data
[tid
];
2081 if (tid_data
->state
!= IWL_AGG_ON
&&
2082 tid_data
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
2084 if (iwl_mvm_tid_queued(tid_data
) == 0)
2086 ieee80211_sta_set_buffered(sta
, tid
, true);
2088 spin_unlock_bh(&mvmsta
->lock
);
2090 * The fw updates the STA to be asleep. Tx packets on the Tx
2091 * queues to this station will not be transmitted. The fw will
2092 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2095 case STA_NOTIFY_AWAKE
:
2096 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
))
2098 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
2105 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw
*hw
,
2106 struct ieee80211_vif
*vif
,
2107 struct ieee80211_sta
*sta
)
2109 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2110 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
2113 * This is called before mac80211 does RCU synchronisation,
2114 * so here we already invalidate our internal RCU-protected
2115 * station pointer. The rest of the code will thus no longer
2116 * be able to find the station this way, and we don't rely
2117 * on further RCU synchronisation after the sta_state()
2118 * callback deleted the station.
2120 mutex_lock(&mvm
->mutex
);
2121 if (sta
== rcu_access_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
]))
2122 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
],
2124 mutex_unlock(&mvm
->mutex
);
2127 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
2128 struct ieee80211_vif
*vif
,
2129 struct ieee80211_sta
*sta
,
2130 enum ieee80211_sta_state old_state
,
2131 enum ieee80211_sta_state new_state
)
2133 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2134 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2137 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
2138 sta
->addr
, old_state
, new_state
);
2140 /* this would be a mac80211 bug ... but don't crash */
2141 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
2144 /* if a STA is being removed, reuse its ID */
2145 flush_work(&mvm
->sta_drained_wk
);
2147 mutex_lock(&mvm
->mutex
);
2148 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2149 new_state
== IEEE80211_STA_NONE
) {
2151 * Firmware bug - it'll crash if the beacon interval is less
2152 * than 16. We can't avoid connecting at all, so refuse the
2153 * station state change, this will cause mac80211 to abandon
2154 * attempts to connect to this AP, and eventually wpa_s will
2155 * blacklist the AP...
2157 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2158 vif
->bss_conf
.beacon_int
< 16) {
2160 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2161 sta
->addr
, vif
->bss_conf
.beacon_int
);
2168 iwl_mvm_tdls_sta_count(mvm
, NULL
) ==
2169 IWL_MVM_TDLS_STA_COUNT
||
2170 iwl_mvm_phy_ctx_count(mvm
) > 1)) {
2171 IWL_DEBUG_MAC80211(mvm
, "refusing TDLS sta\n");
2176 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
2177 if (sta
->tdls
&& ret
== 0)
2178 iwl_mvm_recalc_tdls_state(mvm
, vif
, true);
2179 } else if (old_state
== IEEE80211_STA_NONE
&&
2180 new_state
== IEEE80211_STA_AUTH
) {
2182 * EBS may be disabled due to previous failures reported by FW.
2183 * Reset EBS status here assuming environment has been changed.
2185 mvm
->last_ebs_successful
= true;
2187 } else if (old_state
== IEEE80211_STA_AUTH
&&
2188 new_state
== IEEE80211_STA_ASSOC
) {
2189 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
2191 iwl_mvm_rs_rate_init(mvm
, sta
,
2192 mvmvif
->phy_ctxt
->channel
->band
,
2194 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2195 new_state
== IEEE80211_STA_AUTHORIZED
) {
2197 /* we don't support TDLS during DCM */
2198 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2199 iwl_mvm_teardown_tdls_peers(mvm
);
2201 /* enable beacon filtering */
2202 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
2204 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
2205 new_state
== IEEE80211_STA_ASSOC
) {
2206 /* disable beacon filtering */
2207 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
, 0));
2209 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2210 new_state
== IEEE80211_STA_AUTH
) {
2212 } else if (old_state
== IEEE80211_STA_AUTH
&&
2213 new_state
== IEEE80211_STA_NONE
) {
2215 } else if (old_state
== IEEE80211_STA_NONE
&&
2216 new_state
== IEEE80211_STA_NOTEXIST
) {
2217 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
2219 iwl_mvm_recalc_tdls_state(mvm
, vif
, false);
2224 mutex_unlock(&mvm
->mutex
);
2226 if (sta
->tdls
&& ret
== 0) {
2227 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2228 new_state
== IEEE80211_STA_NONE
)
2229 ieee80211_reserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2230 else if (old_state
== IEEE80211_STA_NONE
&&
2231 new_state
== IEEE80211_STA_NOTEXIST
)
2232 ieee80211_unreserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2238 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
2240 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2242 mvm
->rts_threshold
= value
;
2247 static void iwl_mvm_sta_rc_update(struct ieee80211_hw
*hw
,
2248 struct ieee80211_vif
*vif
,
2249 struct ieee80211_sta
*sta
, u32 changed
)
2251 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2253 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2254 changed
& IEEE80211_RC_NSS_CHANGED
)
2255 iwl_mvm_sf_update(mvm
, vif
, false);
2258 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
2259 struct ieee80211_vif
*vif
, u16 ac
,
2260 const struct ieee80211_tx_queue_params
*params
)
2262 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2263 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2265 mvmvif
->queue_params
[ac
] = *params
;
2268 * No need to update right away, we'll get BSS_CHANGED_QOS
2269 * The exception is P2P_DEVICE interface which needs immediate update.
2271 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
2274 mutex_lock(&mvm
->mutex
);
2275 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2276 mutex_unlock(&mvm
->mutex
);
2282 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
2283 struct ieee80211_vif
*vif
)
2285 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2286 u32 duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
,
2287 200 + vif
->bss_conf
.beacon_int
);
2288 u32 min_duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
,
2289 100 + vif
->bss_conf
.beacon_int
);
2291 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
2295 * iwl_mvm_protect_session() reads directly from the device
2296 * (the system time), so make sure it is available.
2298 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PREPARE_TX
))
2301 mutex_lock(&mvm
->mutex
);
2302 /* Try really hard to protect the session and hear a beacon */
2303 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
, 500, false);
2304 mutex_unlock(&mvm
->mutex
);
2306 iwl_mvm_unref(mvm
, IWL_MVM_REF_PREPARE_TX
);
2309 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw
*hw
,
2310 struct ieee80211_vif
*vif
,
2311 struct cfg80211_sched_scan_request
*req
,
2312 struct ieee80211_scan_ies
*ies
)
2314 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2317 if (!(mvm
->fw
->ucode_capa
.capa
[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN
)) {
2318 ret
= iwl_mvm_cancel_scan_wait_notif(mvm
, IWL_MVM_SCAN_OS
);
2323 mutex_lock(&mvm
->mutex
);
2325 /* Newest FW fixes sched scan while connected on another interface */
2326 if (mvm
->fw
->ucode_capa
.api
[0] & IWL_UCODE_TLV_API_LMAC_SCAN
) {
2327 if (!vif
->bss_conf
.idle
) {
2331 } else if (!iwl_mvm_is_idle(mvm
)) {
2336 if (mvm
->scan_status
!= IWL_MVM_SCAN_NONE
) {
2341 ret
= iwl_mvm_scan_offload_start(mvm
, vif
, req
, ies
);
2343 mvm
->scan_status
= IWL_MVM_SCAN_NONE
;
2346 mutex_unlock(&mvm
->mutex
);
2350 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw
*hw
,
2351 struct ieee80211_vif
*vif
)
2353 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2356 mutex_lock(&mvm
->mutex
);
2357 ret
= iwl_mvm_scan_offload_stop(mvm
, false);
2358 mutex_unlock(&mvm
->mutex
);
2359 iwl_mvm_wait_for_async_handlers(mvm
);
2365 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
2366 enum set_key_cmd cmd
,
2367 struct ieee80211_vif
*vif
,
2368 struct ieee80211_sta
*sta
,
2369 struct ieee80211_key_conf
*key
)
2371 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2374 if (iwlwifi_mod_params
.sw_crypto
) {
2375 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
2379 switch (key
->cipher
) {
2380 case WLAN_CIPHER_SUITE_TKIP
:
2381 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
2383 case WLAN_CIPHER_SUITE_CCMP
:
2384 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
2386 case WLAN_CIPHER_SUITE_AES_CMAC
:
2387 WARN_ON_ONCE(!(hw
->flags
& IEEE80211_HW_MFP_CAPABLE
));
2389 case WLAN_CIPHER_SUITE_WEP40
:
2390 case WLAN_CIPHER_SUITE_WEP104
:
2391 /* For non-client mode, only use WEP keys for TX as we probably
2392 * don't have a station yet anyway and would then have to keep
2393 * track of the keys, linking them to each of the clients/peers
2394 * as they appear. For now, don't do that, for performance WEP
2395 * offload doesn't really matter much, but we need it for some
2396 * other offload features in client mode.
2398 if (vif
->type
!= NL80211_IFTYPE_STATION
)
2402 /* currently FW supports only one optional cipher scheme */
2403 if (hw
->n_cipher_schemes
&&
2404 hw
->cipher_schemes
->cipher
== key
->cipher
)
2405 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2410 mutex_lock(&mvm
->mutex
);
2414 if ((vif
->type
== NL80211_IFTYPE_ADHOC
||
2415 vif
->type
== NL80211_IFTYPE_AP
) && !sta
) {
2417 * GTK on AP interface is a TX-only key, return 0;
2418 * on IBSS they're per-station and because we're lazy
2419 * we don't support them for RX, so do the same.
2422 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2426 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
2427 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, false);
2429 IWL_WARN(mvm
, "set key failed\n");
2431 * can't add key for RX, but we don't need it
2432 * in the device for TX so still return 0
2434 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2440 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2445 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
2446 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
2452 mutex_unlock(&mvm
->mutex
);
2456 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2457 struct ieee80211_vif
*vif
,
2458 struct ieee80211_key_conf
*keyconf
,
2459 struct ieee80211_sta
*sta
,
2460 u32 iv32
, u16
*phase1key
)
2462 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2464 if (keyconf
->hw_key_idx
== STA_KEY_IDX_INVALID
)
2467 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
2471 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data
*notif_wait
,
2472 struct iwl_rx_packet
*pkt
, void *data
)
2474 struct iwl_mvm
*mvm
=
2475 container_of(notif_wait
, struct iwl_mvm
, notif_wait
);
2476 struct iwl_hs20_roc_res
*resp
;
2477 int resp_len
= iwl_rx_packet_payload_len(pkt
);
2478 struct iwl_mvm_time_event_data
*te_data
= data
;
2480 if (WARN_ON(pkt
->hdr
.cmd
!= HOT_SPOT_CMD
))
2483 if (WARN_ON_ONCE(resp_len
!= sizeof(*resp
))) {
2484 IWL_ERR(mvm
, "Invalid HOT_SPOT_CMD response\n");
2488 resp
= (void *)pkt
->data
;
2491 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2492 resp
->status
, resp
->event_unique_id
);
2494 te_data
->uid
= le32_to_cpu(resp
->event_unique_id
);
2495 IWL_DEBUG_TE(mvm
, "TIME_EVENT_CMD response - UID = 0x%x\n",
2498 spin_lock_bh(&mvm
->time_event_lock
);
2499 list_add_tail(&te_data
->list
, &mvm
->aux_roc_te_list
);
2500 spin_unlock_bh(&mvm
->time_event_lock
);
2505 #define AUX_ROC_MAX_DELAY_ON_CHANNEL 5000
2506 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm
*mvm
,
2507 struct ieee80211_channel
*channel
,
2508 struct ieee80211_vif
*vif
,
2511 int res
, time_reg
= DEVICE_SYSTEM_TIME_REG
;
2512 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2513 struct iwl_mvm_time_event_data
*te_data
= &mvmvif
->hs_time_event_data
;
2514 static const u8 time_event_response
[] = { HOT_SPOT_CMD
};
2515 struct iwl_notification_wait wait_time_event
;
2516 struct iwl_hs20_roc_req aux_roc_req
= {
2517 .action
= cpu_to_le32(FW_CTXT_ACTION_ADD
),
2519 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX
, 0)),
2520 .sta_id_and_color
= cpu_to_le32(mvm
->aux_sta
.sta_id
),
2521 /* Set the channel info data */
2522 .channel_info
.band
= (channel
->band
== IEEE80211_BAND_2GHZ
) ?
2523 PHY_BAND_24
: PHY_BAND_5
,
2524 .channel_info
.channel
= channel
->hw_value
,
2525 .channel_info
.width
= PHY_VHT_CHANNEL_MODE20
,
2526 /* Set the time and duration */
2527 .apply_time
= cpu_to_le32(iwl_read_prph(mvm
->trans
, time_reg
)),
2528 .apply_time_max_delay
=
2529 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL
)),
2530 .duration
= cpu_to_le32(MSEC_TO_TU(duration
)),
2533 /* Set the node address */
2534 memcpy(aux_roc_req
.node_addr
, vif
->addr
, ETH_ALEN
);
2536 lockdep_assert_held(&mvm
->mutex
);
2538 spin_lock_bh(&mvm
->time_event_lock
);
2540 if (WARN_ON(te_data
->id
== HOT_SPOT_CMD
)) {
2541 spin_unlock_bh(&mvm
->time_event_lock
);
2546 te_data
->duration
= duration
;
2547 te_data
->id
= HOT_SPOT_CMD
;
2549 spin_unlock_bh(&mvm
->time_event_lock
);
2552 * Use a notification wait, which really just processes the
2553 * command response and doesn't wait for anything, in order
2554 * to be able to process the response and get the UID inside
2555 * the RX path. Using CMD_WANT_SKB doesn't work because it
2556 * stores the buffer and then wakes up this thread, by which
2557 * time another notification (that the time event started)
2558 * might already be processed unsuccessfully.
2560 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_time_event
,
2561 time_event_response
,
2562 ARRAY_SIZE(time_event_response
),
2563 iwl_mvm_rx_aux_roc
, te_data
);
2565 res
= iwl_mvm_send_cmd_pdu(mvm
, HOT_SPOT_CMD
, 0, sizeof(aux_roc_req
),
2569 IWL_ERR(mvm
, "Couldn't send HOT_SPOT_CMD: %d\n", res
);
2570 iwl_remove_notification(&mvm
->notif_wait
, &wait_time_event
);
2574 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
2575 res
= iwl_wait_notification(&mvm
->notif_wait
, &wait_time_event
, 1);
2576 /* should never fail */
2581 spin_lock_bh(&mvm
->time_event_lock
);
2582 iwl_mvm_te_clear_data(mvm
, te_data
);
2583 spin_unlock_bh(&mvm
->time_event_lock
);
2589 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
2590 struct ieee80211_vif
*vif
,
2591 struct ieee80211_channel
*channel
,
2593 enum ieee80211_roc_type type
)
2595 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2596 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2597 struct cfg80211_chan_def chandef
;
2598 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2601 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
2604 mutex_lock(&mvm
->mutex
);
2606 switch (vif
->type
) {
2607 case NL80211_IFTYPE_STATION
:
2608 if (mvm
->fw
->ucode_capa
.capa
[0] &
2609 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT
) {
2610 /* Use aux roc framework (HS20) */
2611 ret
= iwl_mvm_send_aux_roc_cmd(mvm
, channel
,
2615 IWL_ERR(mvm
, "hotspot not supported\n");
2618 case NL80211_IFTYPE_P2P_DEVICE
:
2622 IWL_ERR(mvm
, "vif isn't P2P_DEVICE: %d\n", vif
->type
);
2627 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
2628 phy_ctxt
= &mvm
->phy_ctxts
[i
];
2629 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
2632 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
2634 * Unbind the P2P_DEVICE from the current PHY context,
2635 * and if the PHY context is not used remove it.
2637 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2638 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2641 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2643 /* Bind the P2P_DEVICE to the current PHY Context */
2644 mvmvif
->phy_ctxt
= phy_ctxt
;
2646 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2647 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2650 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2651 goto schedule_time_event
;
2655 /* Need to update the PHY context only if the ROC channel changed */
2656 if (channel
== mvmvif
->phy_ctxt
->channel
)
2657 goto schedule_time_event
;
2659 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
2662 * Change the PHY context configuration as it is currently referenced
2663 * only by the P2P Device MAC
2665 if (mvmvif
->phy_ctxt
->ref
== 1) {
2666 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
2672 * The PHY context is shared with other MACs. Need to remove the
2673 * P2P Device from the binding, allocate an new PHY context and
2674 * create a new binding
2676 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2682 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
2685 IWL_ERR(mvm
, "Failed to change PHY context\n");
2689 /* Unbind the P2P_DEVICE from the current PHY context */
2690 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
2691 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
2694 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
2696 /* Bind the P2P_DEVICE to the new allocated PHY context */
2697 mvmvif
->phy_ctxt
= phy_ctxt
;
2699 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2700 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
2703 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
2706 schedule_time_event
:
2707 /* Schedule the time events */
2708 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
2711 mutex_unlock(&mvm
->mutex
);
2712 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2716 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
2718 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2720 IWL_DEBUG_MAC80211(mvm
, "enter\n");
2722 mutex_lock(&mvm
->mutex
);
2723 iwl_mvm_stop_roc(mvm
);
2724 mutex_unlock(&mvm
->mutex
);
2726 IWL_DEBUG_MAC80211(mvm
, "leave\n");
2730 static int __iwl_mvm_add_chanctx(struct iwl_mvm
*mvm
,
2731 struct ieee80211_chanctx_conf
*ctx
)
2733 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2734 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
2737 lockdep_assert_held(&mvm
->mutex
);
2739 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
2741 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
2747 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2748 ctx
->rx_chains_static
,
2749 ctx
->rx_chains_dynamic
);
2751 IWL_ERR(mvm
, "Failed to add PHY context\n");
2755 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
2756 *phy_ctxt_id
= phy_ctxt
->id
;
2761 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
2762 struct ieee80211_chanctx_conf
*ctx
)
2764 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2767 mutex_lock(&mvm
->mutex
);
2768 ret
= __iwl_mvm_add_chanctx(mvm
, ctx
);
2769 mutex_unlock(&mvm
->mutex
);
2774 static void __iwl_mvm_remove_chanctx(struct iwl_mvm
*mvm
,
2775 struct ieee80211_chanctx_conf
*ctx
)
2777 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2778 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2780 lockdep_assert_held(&mvm
->mutex
);
2782 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
2785 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
2786 struct ieee80211_chanctx_conf
*ctx
)
2788 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2790 mutex_lock(&mvm
->mutex
);
2791 __iwl_mvm_remove_chanctx(mvm
, ctx
);
2792 mutex_unlock(&mvm
->mutex
);
2795 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
2796 struct ieee80211_chanctx_conf
*ctx
,
2799 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2800 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2801 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2803 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
2804 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
2805 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
2806 IEEE80211_CHANCTX_CHANGE_RADAR
|
2807 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH
)),
2808 "Cannot change PHY. Ref=%d, changed=0x%X\n",
2809 phy_ctxt
->ref
, changed
))
2812 mutex_lock(&mvm
->mutex
);
2813 iwl_mvm_bt_coex_vif_change(mvm
);
2814 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
2815 ctx
->rx_chains_static
,
2816 ctx
->rx_chains_dynamic
);
2817 mutex_unlock(&mvm
->mutex
);
2820 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm
*mvm
,
2821 struct ieee80211_vif
*vif
,
2822 struct ieee80211_chanctx_conf
*ctx
,
2823 bool switching_chanctx
)
2825 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
2826 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
2827 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2830 lockdep_assert_held(&mvm
->mutex
);
2832 mvmvif
->phy_ctxt
= phy_ctxt
;
2834 switch (vif
->type
) {
2835 case NL80211_IFTYPE_AP
:
2836 /* only needed if we're switching chanctx (i.e. during CSA) */
2837 if (switching_chanctx
) {
2838 mvmvif
->ap_ibss_active
= true;
2841 case NL80211_IFTYPE_ADHOC
:
2843 * The AP binding flow is handled as part of the start_ap flow
2844 * (in bss_info_changed), similarly for IBSS.
2848 case NL80211_IFTYPE_STATION
:
2850 case NL80211_IFTYPE_MONITOR
:
2851 /* always disable PS when a monitor interface is active */
2852 mvmvif
->ps_disabled
= true;
2859 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2864 * Power state must be updated before quotas,
2865 * otherwise fw will complain.
2867 iwl_mvm_power_update_mac(mvm
);
2869 /* Setting the quota at this stage is only required for monitor
2870 * interfaces. For the other types, the bss_info changed flow
2871 * will handle quota settings.
2873 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
2874 mvmvif
->monitor_active
= true;
2875 ret
= iwl_mvm_update_quotas(mvm
, NULL
);
2877 goto out_remove_binding
;
2880 /* Handle binding during CSA */
2881 if (vif
->type
== NL80211_IFTYPE_AP
) {
2882 iwl_mvm_update_quotas(mvm
, NULL
);
2883 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2886 if (switching_chanctx
&& vif
->type
== NL80211_IFTYPE_STATION
) {
2887 u32 duration
= 2 * vif
->bss_conf
.beacon_int
;
2889 /* iwl_mvm_protect_session() reads directly from the
2890 * device (the system time), so make sure it is
2893 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PROTECT_CSA
);
2895 goto out_remove_binding
;
2897 /* Protect the session to make sure we hear the first
2898 * beacon on the new channel.
2900 iwl_mvm_protect_session(mvm
, vif
, duration
, duration
,
2901 vif
->bss_conf
.beacon_int
/ 2,
2904 iwl_mvm_unref(mvm
, IWL_MVM_REF_PROTECT_CSA
);
2906 iwl_mvm_update_quotas(mvm
, NULL
);
2912 iwl_mvm_binding_remove_vif(mvm
, vif
);
2913 iwl_mvm_power_update_mac(mvm
);
2916 mvmvif
->phy_ctxt
= NULL
;
2919 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
2920 struct ieee80211_vif
*vif
,
2921 struct ieee80211_chanctx_conf
*ctx
)
2923 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2926 mutex_lock(&mvm
->mutex
);
2927 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vif
, ctx
, false);
2928 mutex_unlock(&mvm
->mutex
);
2933 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm
*mvm
,
2934 struct ieee80211_vif
*vif
,
2935 struct ieee80211_chanctx_conf
*ctx
,
2936 bool switching_chanctx
)
2938 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2939 struct ieee80211_vif
*disabled_vif
= NULL
;
2941 lockdep_assert_held(&mvm
->mutex
);
2943 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
2945 switch (vif
->type
) {
2946 case NL80211_IFTYPE_ADHOC
:
2948 case NL80211_IFTYPE_MONITOR
:
2949 mvmvif
->monitor_active
= false;
2950 mvmvif
->ps_disabled
= false;
2952 case NL80211_IFTYPE_AP
:
2953 /* This part is triggered only during CSA */
2954 if (!switching_chanctx
|| !mvmvif
->ap_ibss_active
)
2957 mvmvif
->csa_countdown
= false;
2959 /* Set CS bit on all the stations */
2960 iwl_mvm_modify_all_sta_disable_tx(mvm
, mvmvif
, true);
2962 /* Save blocked iface, the timeout is set on the next beacon */
2963 rcu_assign_pointer(mvm
->csa_tx_blocked_vif
, vif
);
2965 mvmvif
->ap_ibss_active
= false;
2967 case NL80211_IFTYPE_STATION
:
2968 if (!switching_chanctx
)
2973 iwl_mvm_mac_ctxt_changed(mvm
, vif
, true, NULL
);
2979 iwl_mvm_update_quotas(mvm
, disabled_vif
);
2980 iwl_mvm_binding_remove_vif(mvm
, vif
);
2983 mvmvif
->phy_ctxt
= NULL
;
2984 iwl_mvm_power_update_mac(mvm
);
2987 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
2988 struct ieee80211_vif
*vif
,
2989 struct ieee80211_chanctx_conf
*ctx
)
2991 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2993 mutex_lock(&mvm
->mutex
);
2994 __iwl_mvm_unassign_vif_chanctx(mvm
, vif
, ctx
, false);
2995 mutex_unlock(&mvm
->mutex
);
2999 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm
*mvm
,
3000 struct ieee80211_vif_chanctx_switch
*vifs
)
3004 mutex_lock(&mvm
->mutex
);
3005 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
3006 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].old_ctx
);
3008 ret
= __iwl_mvm_add_chanctx(mvm
, vifs
[0].new_ctx
);
3010 IWL_ERR(mvm
, "failed to add new_ctx during channel switch\n");
3014 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
3018 "failed to assign new_ctx during channel switch\n");
3022 /* we don't support TDLS during DCM - can be caused by channel switch */
3023 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
3024 iwl_mvm_teardown_tdls_peers(mvm
);
3029 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].new_ctx
);
3032 if (__iwl_mvm_add_chanctx(mvm
, vifs
[0].old_ctx
)) {
3033 IWL_ERR(mvm
, "failed to add old_ctx back after failure.\n");
3037 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3039 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3046 /* things keep failing, better restart the hw */
3047 iwl_mvm_nic_restart(mvm
, false);
3050 mutex_unlock(&mvm
->mutex
);
3056 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm
*mvm
,
3057 struct ieee80211_vif_chanctx_switch
*vifs
)
3061 mutex_lock(&mvm
->mutex
);
3062 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
3064 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
3068 "failed to assign new_ctx during channel switch\n");
3075 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3077 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3084 /* things keep failing, better restart the hw */
3085 iwl_mvm_nic_restart(mvm
, false);
3088 mutex_unlock(&mvm
->mutex
);
3093 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw
*hw
,
3094 struct ieee80211_vif_chanctx_switch
*vifs
,
3096 enum ieee80211_chanctx_switch_mode mode
)
3098 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3101 /* we only support a single-vif right now */
3106 case CHANCTX_SWMODE_SWAP_CONTEXTS
:
3107 ret
= iwl_mvm_switch_vif_chanctx_swap(mvm
, vifs
);
3109 case CHANCTX_SWMODE_REASSIGN_VIF
:
3110 ret
= iwl_mvm_switch_vif_chanctx_reassign(mvm
, vifs
);
3120 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
3121 struct ieee80211_sta
*sta
,
3124 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3125 struct iwl_mvm_sta
*mvm_sta
= (void *)sta
->drv_priv
;
3127 if (!mvm_sta
|| !mvm_sta
->vif
) {
3128 IWL_ERR(mvm
, "Station is not associated to a vif\n");
3132 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
3135 #ifdef CONFIG_NL80211_TESTMODE
3136 static const struct nla_policy iwl_mvm_tm_policy
[IWL_MVM_TM_ATTR_MAX
+ 1] = {
3137 [IWL_MVM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
3138 [IWL_MVM_TM_ATTR_NOA_DURATION
] = { .type
= NLA_U32
},
3139 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
] = { .type
= NLA_U32
},
3142 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm
*mvm
,
3143 struct ieee80211_vif
*vif
,
3144 void *data
, int len
)
3146 struct nlattr
*tb
[IWL_MVM_TM_ATTR_MAX
+ 1];
3150 err
= nla_parse(tb
, IWL_MVM_TM_ATTR_MAX
, data
, len
, iwl_mvm_tm_policy
);
3154 if (!tb
[IWL_MVM_TM_ATTR_CMD
])
3157 switch (nla_get_u32(tb
[IWL_MVM_TM_ATTR_CMD
])) {
3158 case IWL_MVM_TM_CMD_SET_NOA
:
3159 if (!vif
|| vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
||
3160 !vif
->bss_conf
.enable_beacon
||
3161 !tb
[IWL_MVM_TM_ATTR_NOA_DURATION
])
3164 noa_duration
= nla_get_u32(tb
[IWL_MVM_TM_ATTR_NOA_DURATION
]);
3165 if (noa_duration
>= vif
->bss_conf
.beacon_int
)
3168 mvm
->noa_duration
= noa_duration
;
3171 return iwl_mvm_update_quotas(mvm
, NULL
);
3172 case IWL_MVM_TM_CMD_SET_BEACON_FILTER
:
3173 /* must be associated client vif - ignore authorized */
3174 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
||
3175 !vif
->bss_conf
.assoc
|| !vif
->bss_conf
.dtim_period
||
3176 !tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
])
3179 if (nla_get_u32(tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
]))
3180 return iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
3181 return iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3187 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw
*hw
,
3188 struct ieee80211_vif
*vif
,
3189 void *data
, int len
)
3191 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3194 mutex_lock(&mvm
->mutex
);
3195 err
= __iwl_mvm_mac_testmode_cmd(mvm
, vif
, data
, len
);
3196 mutex_unlock(&mvm
->mutex
);
3202 static void iwl_mvm_channel_switch(struct ieee80211_hw
*hw
,
3203 struct ieee80211_vif
*vif
,
3204 struct ieee80211_channel_switch
*chsw
)
3206 /* By implementing this operation, we prevent mac80211 from
3207 * starting its own channel switch timer, so that we can call
3208 * ieee80211_chswitch_done() ourselves at the right time
3209 * (which is when the absence time event starts).
3212 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw
),
3213 "dummy channel switch op\n");
3216 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw
*hw
,
3217 struct ieee80211_vif
*vif
,
3218 struct ieee80211_channel_switch
*chsw
)
3220 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3221 struct ieee80211_vif
*csa_vif
;
3222 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3226 mutex_lock(&mvm
->mutex
);
3228 IWL_DEBUG_MAC80211(mvm
, "pre CSA to freq %d\n",
3229 chsw
->chandef
.center_freq1
);
3231 switch (vif
->type
) {
3232 case NL80211_IFTYPE_AP
:
3234 rcu_dereference_protected(mvm
->csa_vif
,
3235 lockdep_is_held(&mvm
->mutex
));
3236 if (WARN_ONCE(csa_vif
&& csa_vif
->csa_active
,
3237 "Another CSA is already in progress")) {
3242 rcu_assign_pointer(mvm
->csa_vif
, vif
);
3244 if (WARN_ONCE(mvmvif
->csa_countdown
,
3245 "Previous CSA countdown didn't complete")) {
3251 case NL80211_IFTYPE_STATION
:
3252 /* Schedule the time event to a bit before beacon 1,
3253 * to make sure we're in the new channel when the
3256 apply_time
= chsw
->device_timestamp
+
3257 ((vif
->bss_conf
.beacon_int
* (chsw
->count
- 1) -
3258 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT
) * 1024);
3261 iwl_mvm_csa_client_absent(mvm
, vif
);
3263 iwl_mvm_schedule_csa_period(mvm
, vif
, vif
->bss_conf
.beacon_int
,
3265 if (mvmvif
->bf_data
.bf_enabled
) {
3266 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3276 mvmvif
->ps_disabled
= true;
3278 ret
= iwl_mvm_power_update_ps(mvm
);
3282 /* we won't be on this channel any longer */
3283 iwl_mvm_teardown_tdls_peers(mvm
);
3286 mutex_unlock(&mvm
->mutex
);
3291 static int iwl_mvm_post_channel_switch(struct ieee80211_hw
*hw
,
3292 struct ieee80211_vif
*vif
)
3294 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3295 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3298 mutex_lock(&mvm
->mutex
);
3300 if (vif
->type
== NL80211_IFTYPE_STATION
) {
3301 struct iwl_mvm_sta
*mvmsta
;
3303 mvmsta
= iwl_mvm_sta_from_staid_protected(mvm
,
3306 if (WARN_ON(!mvmsta
)) {
3311 iwl_mvm_sta_modify_disable_tx(mvm
, mvmsta
, false);
3313 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
3315 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
3319 iwl_mvm_stop_session_protection(mvm
, vif
);
3322 mvmvif
->ps_disabled
= false;
3324 ret
= iwl_mvm_power_update_ps(mvm
);
3327 mutex_unlock(&mvm
->mutex
);
3332 static void iwl_mvm_mac_flush(struct ieee80211_hw
*hw
,
3333 struct ieee80211_vif
*vif
, u32 queues
, bool drop
)
3335 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3336 struct iwl_mvm_vif
*mvmvif
;
3337 struct iwl_mvm_sta
*mvmsta
;
3338 struct ieee80211_sta
*sta
;
3342 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
)
3345 mutex_lock(&mvm
->mutex
);
3346 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3348 /* flush the AP-station and all TDLS peers */
3349 for (i
= 0; i
< IWL_MVM_STATION_COUNT
; i
++) {
3350 sta
= rcu_dereference_protected(mvm
->fw_id_to_mac_id
[i
],
3351 lockdep_is_held(&mvm
->mutex
));
3352 if (IS_ERR_OR_NULL(sta
))
3355 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
3356 if (mvmsta
->vif
!= vif
)
3359 /* make sure only TDLS peers or the AP are flushed */
3360 WARN_ON(i
!= mvmvif
->ap_sta_id
&& !sta
->tdls
);
3362 msk
|= mvmsta
->tfd_queue_msk
;
3366 if (iwl_mvm_flush_tx_path(mvm
, msk
, true))
3367 IWL_ERR(mvm
, "flush request fail\n");
3368 mutex_unlock(&mvm
->mutex
);
3370 mutex_unlock(&mvm
->mutex
);
3372 /* this can take a while, and we may need/want other operations
3373 * to succeed while doing this, so do it without the mutex held
3375 iwl_trans_wait_tx_queue_empty(mvm
->trans
, msk
);
3379 const struct ieee80211_ops iwl_mvm_hw_ops
= {
3380 .tx
= iwl_mvm_mac_tx
,
3381 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
3382 .start
= iwl_mvm_mac_start
,
3383 .reconfig_complete
= iwl_mvm_mac_reconfig_complete
,
3384 .stop
= iwl_mvm_mac_stop
,
3385 .add_interface
= iwl_mvm_mac_add_interface
,
3386 .remove_interface
= iwl_mvm_mac_remove_interface
,
3387 .config
= iwl_mvm_mac_config
,
3388 .prepare_multicast
= iwl_mvm_prepare_multicast
,
3389 .configure_filter
= iwl_mvm_configure_filter
,
3390 .bss_info_changed
= iwl_mvm_bss_info_changed
,
3391 .hw_scan
= iwl_mvm_mac_hw_scan
,
3392 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
3393 .sta_pre_rcu_remove
= iwl_mvm_sta_pre_rcu_remove
,
3394 .sta_state
= iwl_mvm_mac_sta_state
,
3395 .sta_notify
= iwl_mvm_mac_sta_notify
,
3396 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
3397 .release_buffered_frames
= iwl_mvm_mac_release_buffered_frames
,
3398 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
3399 .sta_rc_update
= iwl_mvm_sta_rc_update
,
3400 .conf_tx
= iwl_mvm_mac_conf_tx
,
3401 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
3402 .mgd_protect_tdls_discover
= iwl_mvm_mac_mgd_protect_tdls_discover
,
3403 .flush
= iwl_mvm_mac_flush
,
3404 .sched_scan_start
= iwl_mvm_mac_sched_scan_start
,
3405 .sched_scan_stop
= iwl_mvm_mac_sched_scan_stop
,
3406 .set_key
= iwl_mvm_mac_set_key
,
3407 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
3408 .remain_on_channel
= iwl_mvm_roc
,
3409 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
3410 .add_chanctx
= iwl_mvm_add_chanctx
,
3411 .remove_chanctx
= iwl_mvm_remove_chanctx
,
3412 .change_chanctx
= iwl_mvm_change_chanctx
,
3413 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
3414 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
3415 .switch_vif_chanctx
= iwl_mvm_switch_vif_chanctx
,
3417 .start_ap
= iwl_mvm_start_ap_ibss
,
3418 .stop_ap
= iwl_mvm_stop_ap_ibss
,
3419 .join_ibss
= iwl_mvm_start_ap_ibss
,
3420 .leave_ibss
= iwl_mvm_stop_ap_ibss
,
3422 .set_tim
= iwl_mvm_set_tim
,
3424 .channel_switch
= iwl_mvm_channel_switch
,
3425 .pre_channel_switch
= iwl_mvm_pre_channel_switch
,
3426 .post_channel_switch
= iwl_mvm_post_channel_switch
,
3428 .tdls_channel_switch
= iwl_mvm_tdls_channel_switch
,
3429 .tdls_cancel_channel_switch
= iwl_mvm_tdls_cancel_channel_switch
,
3430 .tdls_recv_channel_switch
= iwl_mvm_tdls_recv_channel_switch
,
3432 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd
)
3434 #ifdef CONFIG_PM_SLEEP
3436 .suspend
= iwl_mvm_suspend
,
3437 .resume
= iwl_mvm_resume
,
3438 .set_wakeup
= iwl_mvm_set_wakeup
,
3439 .set_rekey_data
= iwl_mvm_set_rekey_data
,
3440 #if IS_ENABLED(CONFIG_IPV6)
3441 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
3443 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,