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 - 2015 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of version 2 of the GNU General Public License as
14 * published by the Free Software Foundation.
16 * This program is distributed in the hope that it will be useful, but
17 * WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 * General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
26 * The full GNU General Public License is included in this distribution
27 * in the file called COPYING.
29 * Contact Information:
30 * Intel Linux Wireless <linuxwifi@intel.com>
31 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
35 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
36 * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
37 * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
38 * All rights reserved.
40 * Redistribution and use in source and binary forms, with or without
41 * modification, are permitted provided that the following conditions
44 * * Redistributions of source code must retain the above copyright
45 * notice, this list of conditions and the following disclaimer.
46 * * Redistributions in binary form must reproduce the above copyright
47 * notice, this list of conditions and the following disclaimer in
48 * the documentation and/or other materials provided with the
50 * * Neither the name Intel Corporation nor the names of its
51 * contributors may be used to endorse or promote products derived
52 * from this software without specific prior written permission.
54 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
55 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
56 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
57 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
58 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
59 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
60 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
61 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
62 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
63 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
64 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
66 *****************************************************************************/
67 #include <linux/kernel.h>
68 #include <linux/slab.h>
69 #include <linux/skbuff.h>
70 #include <linux/netdevice.h>
71 #include <linux/etherdevice.h>
73 #include <linux/if_arp.h>
74 #include <linux/time.h>
75 #include <net/mac80211.h>
76 #include <net/ieee80211_radiotap.h>
79 #include "iwl-op-mode.h"
83 #include "time-event.h"
84 #include "iwl-eeprom-parse.h"
85 #include "iwl-phy-db.h"
87 #include "fw/error-dump.h"
89 #include "iwl-nvm-parse.h"
92 static const struct ieee80211_iface_limit iwl_mvm_limits
[] = {
95 .types
= BIT(NL80211_IFTYPE_STATION
),
99 .types
= BIT(NL80211_IFTYPE_AP
) |
100 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
101 BIT(NL80211_IFTYPE_P2P_GO
),
105 .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
),
109 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations
[] = {
111 .num_different_channels
= 2,
113 .limits
= iwl_mvm_limits
,
114 .n_limits
= ARRAY_SIZE(iwl_mvm_limits
),
118 #ifdef CONFIG_PM_SLEEP
119 static const struct nl80211_wowlan_tcp_data_token_feature
120 iwl_mvm_wowlan_tcp_token_feature
= {
123 .bufsize
= IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS
,
126 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support
= {
127 .tok
= &iwl_mvm_wowlan_tcp_token_feature
,
128 .data_payload_max
= IWL_WOWLAN_TCP_MAX_PACKET_LEN
-
129 sizeof(struct ethhdr
) -
130 sizeof(struct iphdr
) -
131 sizeof(struct tcphdr
),
132 .data_interval_max
= 65535, /* __le16 in API */
133 .wake_payload_max
= IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN
-
134 sizeof(struct ethhdr
) -
135 sizeof(struct iphdr
) -
136 sizeof(struct tcphdr
),
141 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
143 * Use the reserved field to indicate magic values.
144 * these values will only be used internally by the driver,
145 * and won't make it to the fw (reserved will be 0).
146 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
147 * be the vif's ip address. in case there is not a single
148 * ip address (0, or more than 1), this attribute will
150 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
151 * the LSB bytes of the vif's mac address
154 BC_FILTER_MAGIC_NONE
= 0,
159 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters
[] = {
163 .frame_type
= BCAST_FILTER_FRAME_TYPE_ALL
,
166 /* frame type - arp, hw type - ethernet */
168 BCAST_FILTER_OFFSET_PAYLOAD_START
,
169 .offset
= sizeof(rfc1042_header
),
170 .val
= cpu_to_be32(0x08060001),
171 .mask
= cpu_to_be32(0xffffffff),
176 BCAST_FILTER_OFFSET_PAYLOAD_START
,
177 .offset
= sizeof(rfc1042_header
) + 2 +
178 sizeof(struct arphdr
) +
179 ETH_ALEN
+ sizeof(__be32
) +
181 .mask
= cpu_to_be32(0xffffffff),
182 /* mark it as special field */
183 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_IP
),
188 /* dhcp offer bcast */
190 .frame_type
= BCAST_FILTER_FRAME_TYPE_IPV4
,
193 /* udp dest port - 68 (bootp client)*/
194 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
195 .offset
= offsetof(struct udphdr
, dest
),
196 .val
= cpu_to_be32(0x00440000),
197 .mask
= cpu_to_be32(0xffff0000),
200 /* dhcp - lsb bytes of client hw address */
201 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
203 .mask
= cpu_to_be32(0xffffffff),
204 /* mark it as special field */
205 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_MAC
),
209 /* last filter must be empty */
214 void iwl_mvm_ref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
216 if (!iwl_mvm_is_d0i3_supported(mvm
))
219 IWL_DEBUG_RPM(mvm
, "Take mvm reference - type %d\n", ref_type
);
220 spin_lock_bh(&mvm
->refs_lock
);
221 mvm
->refs
[ref_type
]++;
222 spin_unlock_bh(&mvm
->refs_lock
);
223 iwl_trans_ref(mvm
->trans
);
226 void iwl_mvm_unref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
228 if (!iwl_mvm_is_d0i3_supported(mvm
))
231 IWL_DEBUG_RPM(mvm
, "Leave mvm reference - type %d\n", ref_type
);
232 spin_lock_bh(&mvm
->refs_lock
);
233 if (WARN_ON(!mvm
->refs
[ref_type
])) {
234 spin_unlock_bh(&mvm
->refs_lock
);
237 mvm
->refs
[ref_type
]--;
238 spin_unlock_bh(&mvm
->refs_lock
);
239 iwl_trans_unref(mvm
->trans
);
242 static void iwl_mvm_unref_all_except(struct iwl_mvm
*mvm
,
243 enum iwl_mvm_ref_type except_ref
)
247 if (!iwl_mvm_is_d0i3_supported(mvm
))
250 spin_lock_bh(&mvm
->refs_lock
);
251 for (i
= 0; i
< IWL_MVM_REF_COUNT
; i
++) {
252 if (except_ref
== i
|| !mvm
->refs
[i
])
255 IWL_DEBUG_RPM(mvm
, "Cleanup: remove mvm ref type %d (%d)\n",
257 for (j
= 0; j
< mvm
->refs
[i
]; j
++)
258 iwl_trans_unref(mvm
->trans
);
261 spin_unlock_bh(&mvm
->refs_lock
);
264 bool iwl_mvm_ref_taken(struct iwl_mvm
*mvm
)
269 if (!iwl_mvm_is_d0i3_supported(mvm
))
272 spin_lock_bh(&mvm
->refs_lock
);
273 for (i
= 0; i
< IWL_MVM_REF_COUNT
; i
++) {
279 spin_unlock_bh(&mvm
->refs_lock
);
284 int iwl_mvm_ref_sync(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
286 iwl_mvm_ref(mvm
, ref_type
);
288 if (!wait_event_timeout(mvm
->d0i3_exit_waitq
,
289 !test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
),
292 iwl_mvm_unref(mvm
, ref_type
);
299 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm
*mvm
)
303 memset(mvm
->phy_ctxts
, 0, sizeof(mvm
->phy_ctxts
));
304 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
305 mvm
->phy_ctxts
[i
].id
= i
;
306 mvm
->phy_ctxts
[i
].ref
= 0;
310 struct ieee80211_regdomain
*iwl_mvm_get_regdomain(struct wiphy
*wiphy
,
312 enum iwl_mcc_source src_id
,
315 struct ieee80211_regdomain
*regd
= NULL
;
316 struct ieee80211_hw
*hw
= wiphy_to_ieee80211_hw(wiphy
);
317 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
318 struct iwl_mcc_update_resp
*resp
;
320 IWL_DEBUG_LAR(mvm
, "Getting regdomain data for %s from FW\n", alpha2
);
322 lockdep_assert_held(&mvm
->mutex
);
324 resp
= iwl_mvm_update_mcc(mvm
, alpha2
, src_id
);
325 if (IS_ERR_OR_NULL(resp
)) {
326 IWL_DEBUG_LAR(mvm
, "Could not get update from FW %d\n",
327 PTR_ERR_OR_ZERO(resp
));
332 *changed
= (resp
->status
== MCC_RESP_NEW_CHAN_PROFILE
);
334 regd
= iwl_parse_nvm_mcc_info(mvm
->trans
->dev
, mvm
->cfg
,
335 __le32_to_cpu(resp
->n_channels
),
337 __le16_to_cpu(resp
->mcc
));
338 /* Store the return source id */
339 src_id
= resp
->source_id
;
341 if (IS_ERR_OR_NULL(regd
)) {
342 IWL_DEBUG_LAR(mvm
, "Could not get parse update from FW %d\n",
343 PTR_ERR_OR_ZERO(regd
));
347 IWL_DEBUG_LAR(mvm
, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
348 regd
->alpha2
, regd
->alpha2
[0], regd
->alpha2
[1], src_id
);
349 mvm
->lar_regdom_set
= true;
350 mvm
->mcc_src
= src_id
;
356 void iwl_mvm_update_changed_regdom(struct iwl_mvm
*mvm
)
359 struct ieee80211_regdomain
*regd
;
361 if (!iwl_mvm_is_lar_supported(mvm
))
364 regd
= iwl_mvm_get_current_regdomain(mvm
, &changed
);
365 if (!IS_ERR_OR_NULL(regd
)) {
366 /* only update the regulatory core if changed */
368 regulatory_set_wiphy_regd(mvm
->hw
->wiphy
, regd
);
374 struct ieee80211_regdomain
*iwl_mvm_get_current_regdomain(struct iwl_mvm
*mvm
,
377 return iwl_mvm_get_regdomain(mvm
->hw
->wiphy
, "ZZ",
378 iwl_mvm_is_wifi_mcc_supported(mvm
) ?
379 MCC_SOURCE_GET_CURRENT
:
380 MCC_SOURCE_OLD_FW
, changed
);
383 int iwl_mvm_init_fw_regd(struct iwl_mvm
*mvm
)
385 enum iwl_mcc_source used_src
;
386 struct ieee80211_regdomain
*regd
;
389 const struct ieee80211_regdomain
*r
=
390 rtnl_dereference(mvm
->hw
->wiphy
->regd
);
395 /* save the last source in case we overwrite it below */
396 used_src
= mvm
->mcc_src
;
397 if (iwl_mvm_is_wifi_mcc_supported(mvm
)) {
398 /* Notify the firmware we support wifi location updates */
399 regd
= iwl_mvm_get_current_regdomain(mvm
, NULL
);
400 if (!IS_ERR_OR_NULL(regd
))
404 /* Now set our last stored MCC and source */
405 regd
= iwl_mvm_get_regdomain(mvm
->hw
->wiphy
, r
->alpha2
, used_src
,
407 if (IS_ERR_OR_NULL(regd
))
410 /* update cfg80211 if the regdomain was changed */
412 ret
= regulatory_set_wiphy_regd_sync_rtnl(mvm
->hw
->wiphy
, regd
);
420 int iwl_mvm_mac_setup_register(struct iwl_mvm
*mvm
)
422 struct ieee80211_hw
*hw
= mvm
->hw
;
424 static const u32 mvm_ciphers
[] = {
425 WLAN_CIPHER_SUITE_WEP40
,
426 WLAN_CIPHER_SUITE_WEP104
,
427 WLAN_CIPHER_SUITE_TKIP
,
428 WLAN_CIPHER_SUITE_CCMP
,
431 /* Tell mac80211 our characteristics */
432 ieee80211_hw_set(hw
, SIGNAL_DBM
);
433 ieee80211_hw_set(hw
, SPECTRUM_MGMT
);
434 ieee80211_hw_set(hw
, REPORTS_TX_ACK_STATUS
);
435 ieee80211_hw_set(hw
, QUEUE_CONTROL
);
436 ieee80211_hw_set(hw
, WANT_MONITOR_VIF
);
437 ieee80211_hw_set(hw
, SUPPORTS_PS
);
438 ieee80211_hw_set(hw
, SUPPORTS_DYNAMIC_PS
);
439 ieee80211_hw_set(hw
, AMPDU_AGGREGATION
);
440 ieee80211_hw_set(hw
, TIMING_BEACON_ONLY
);
441 ieee80211_hw_set(hw
, CONNECTION_MONITOR
);
442 ieee80211_hw_set(hw
, CHANCTX_STA_CSA
);
443 ieee80211_hw_set(hw
, SUPPORT_FAST_XMIT
);
444 ieee80211_hw_set(hw
, SUPPORTS_CLONED_SKBS
);
445 ieee80211_hw_set(hw
, SUPPORTS_AMSDU_IN_AMPDU
);
446 ieee80211_hw_set(hw
, NEEDS_UNIQUE_STA_ADDR
);
447 if (iwl_mvm_has_new_rx_api(mvm
))
448 ieee80211_hw_set(hw
, SUPPORTS_REORDERING_BUFFER
);
449 if (fw_has_capa(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_CAPA_STA_PM_NOTIF
))
450 ieee80211_hw_set(hw
, AP_LINK_PS
);
452 if (mvm
->trans
->num_rx_queues
> 1)
453 ieee80211_hw_set(hw
, USES_RSS
);
455 if (mvm
->trans
->max_skb_frags
)
456 hw
->netdev_features
= NETIF_F_HIGHDMA
| NETIF_F_SG
;
458 if (!iwl_mvm_is_dqa_supported(mvm
))
459 hw
->queues
= mvm
->first_agg_queue
;
461 hw
->queues
= IEEE80211_MAX_QUEUES
;
462 hw
->offchannel_tx_hw_queue
= IWL_MVM_OFFCHANNEL_QUEUE
;
463 hw
->radiotap_mcs_details
|= IEEE80211_RADIOTAP_MCS_HAVE_FEC
|
464 IEEE80211_RADIOTAP_MCS_HAVE_STBC
;
465 hw
->radiotap_vht_details
|= IEEE80211_RADIOTAP_VHT_KNOWN_STBC
|
466 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED
;
468 hw
->radiotap_timestamp
.units_pos
=
469 IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US
|
470 IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ
;
471 /* this is the case for CCK frames, it's better (only 8) for OFDM */
472 hw
->radiotap_timestamp
.accuracy
= 22;
474 hw
->rate_control_algorithm
= "iwl-mvm-rs";
475 hw
->uapsd_queues
= IWL_MVM_UAPSD_QUEUES
;
476 hw
->uapsd_max_sp_len
= IWL_UAPSD_MAX_SP
;
478 BUILD_BUG_ON(ARRAY_SIZE(mvm
->ciphers
) < ARRAY_SIZE(mvm_ciphers
) + 6);
479 memcpy(mvm
->ciphers
, mvm_ciphers
, sizeof(mvm_ciphers
));
480 hw
->wiphy
->n_cipher_suites
= ARRAY_SIZE(mvm_ciphers
);
481 hw
->wiphy
->cipher_suites
= mvm
->ciphers
;
483 if (iwl_mvm_has_new_rx_api(mvm
)) {
484 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] =
485 WLAN_CIPHER_SUITE_GCMP
;
486 hw
->wiphy
->n_cipher_suites
++;
487 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] =
488 WLAN_CIPHER_SUITE_GCMP_256
;
489 hw
->wiphy
->n_cipher_suites
++;
492 /* Enable 11w if software crypto is not enabled (as the
493 * firmware will interpret some mgmt packets, so enabling it
494 * with software crypto isn't safe).
496 if (!iwlwifi_mod_params
.swcrypto
) {
497 ieee80211_hw_set(hw
, MFP_CAPABLE
);
498 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] =
499 WLAN_CIPHER_SUITE_AES_CMAC
;
500 hw
->wiphy
->n_cipher_suites
++;
501 if (iwl_mvm_has_new_rx_api(mvm
)) {
502 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] =
503 WLAN_CIPHER_SUITE_BIP_GMAC_128
;
504 hw
->wiphy
->n_cipher_suites
++;
505 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] =
506 WLAN_CIPHER_SUITE_BIP_GMAC_256
;
507 hw
->wiphy
->n_cipher_suites
++;
511 /* currently FW API supports only one optional cipher scheme */
512 if (mvm
->fw
->cs
[0].cipher
) {
513 const struct iwl_fw_cipher_scheme
*fwcs
= &mvm
->fw
->cs
[0];
514 struct ieee80211_cipher_scheme
*cs
= &mvm
->cs
[0];
516 mvm
->hw
->n_cipher_schemes
= 1;
518 cs
->cipher
= le32_to_cpu(fwcs
->cipher
);
519 cs
->iftype
= BIT(NL80211_IFTYPE_STATION
);
520 cs
->hdr_len
= fwcs
->hdr_len
;
521 cs
->pn_len
= fwcs
->pn_len
;
522 cs
->pn_off
= fwcs
->pn_off
;
523 cs
->key_idx_off
= fwcs
->key_idx_off
;
524 cs
->key_idx_mask
= fwcs
->key_idx_mask
;
525 cs
->key_idx_shift
= fwcs
->key_idx_shift
;
526 cs
->mic_len
= fwcs
->mic_len
;
528 mvm
->hw
->cipher_schemes
= mvm
->cs
;
529 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] = cs
->cipher
;
530 hw
->wiphy
->n_cipher_suites
++;
533 ieee80211_hw_set(hw
, SINGLE_SCAN_ON_ALL_BANDS
);
534 hw
->wiphy
->features
|=
535 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR
|
536 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR
|
537 NL80211_FEATURE_ND_RANDOM_MAC_ADDR
;
539 hw
->sta_data_size
= sizeof(struct iwl_mvm_sta
);
540 hw
->vif_data_size
= sizeof(struct iwl_mvm_vif
);
541 hw
->chanctx_data_size
= sizeof(u16
);
543 hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
544 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
545 BIT(NL80211_IFTYPE_AP
) |
546 BIT(NL80211_IFTYPE_P2P_GO
) |
547 BIT(NL80211_IFTYPE_P2P_DEVICE
) |
548 BIT(NL80211_IFTYPE_ADHOC
);
550 hw
->wiphy
->flags
|= WIPHY_FLAG_IBSS_RSN
;
551 hw
->wiphy
->regulatory_flags
|= REGULATORY_ENABLE_RELAX_NO_IR
;
552 if (iwl_mvm_is_lar_supported(mvm
))
553 hw
->wiphy
->regulatory_flags
|= REGULATORY_WIPHY_SELF_MANAGED
;
555 hw
->wiphy
->regulatory_flags
|= REGULATORY_CUSTOM_REG
|
556 REGULATORY_DISABLE_BEACON_HINTS
;
558 hw
->wiphy
->flags
|= WIPHY_FLAG_AP_UAPSD
;
559 hw
->wiphy
->flags
|= WIPHY_FLAG_HAS_CHANNEL_SWITCH
;
561 hw
->wiphy
->iface_combinations
= iwl_mvm_iface_combinations
;
562 hw
->wiphy
->n_iface_combinations
=
563 ARRAY_SIZE(iwl_mvm_iface_combinations
);
565 hw
->wiphy
->max_remain_on_channel_duration
= 10000;
566 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
567 /* we can compensate an offset of up to 3 channels = 15 MHz */
568 hw
->wiphy
->max_adj_channel_rssi_comp
= 3 * 5;
570 /* Extract MAC address */
571 memcpy(mvm
->addresses
[0].addr
, mvm
->nvm_data
->hw_addr
, ETH_ALEN
);
572 hw
->wiphy
->addresses
= mvm
->addresses
;
573 hw
->wiphy
->n_addresses
= 1;
575 /* Extract additional MAC addresses if available */
576 num_mac
= (mvm
->nvm_data
->n_hw_addrs
> 1) ?
577 min(IWL_MVM_MAX_ADDRESSES
, mvm
->nvm_data
->n_hw_addrs
) : 1;
579 for (i
= 1; i
< num_mac
; i
++) {
580 memcpy(mvm
->addresses
[i
].addr
, mvm
->addresses
[i
-1].addr
,
582 mvm
->addresses
[i
].addr
[5]++;
583 hw
->wiphy
->n_addresses
++;
586 iwl_mvm_reset_phy_ctxts(mvm
);
588 hw
->wiphy
->max_scan_ie_len
= iwl_mvm_max_scan_ie_len(mvm
);
590 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
592 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK
& IWL_MVM_SCAN_MASK
);
593 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS
> HWEIGHT32(IWL_MVM_SCAN_MASK
) ||
594 IWL_MVM_MAX_LMAC_SCANS
> HWEIGHT32(IWL_MVM_SCAN_MASK
));
596 if (fw_has_capa(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_CAPA_UMAC_SCAN
))
597 mvm
->max_scans
= IWL_MVM_MAX_UMAC_SCANS
;
599 mvm
->max_scans
= IWL_MVM_MAX_LMAC_SCANS
;
601 if (mvm
->nvm_data
->bands
[NL80211_BAND_2GHZ
].n_channels
)
602 hw
->wiphy
->bands
[NL80211_BAND_2GHZ
] =
603 &mvm
->nvm_data
->bands
[NL80211_BAND_2GHZ
];
604 if (mvm
->nvm_data
->bands
[NL80211_BAND_5GHZ
].n_channels
) {
605 hw
->wiphy
->bands
[NL80211_BAND_5GHZ
] =
606 &mvm
->nvm_data
->bands
[NL80211_BAND_5GHZ
];
608 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
609 IWL_UCODE_TLV_CAPA_BEAMFORMER
) &&
610 fw_has_api(&mvm
->fw
->ucode_capa
,
611 IWL_UCODE_TLV_API_LQ_SS_PARAMS
))
612 hw
->wiphy
->bands
[NL80211_BAND_5GHZ
]->vht_cap
.cap
|=
613 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE
;
616 hw
->wiphy
->hw_version
= mvm
->trans
->hw_id
;
618 if (iwlmvm_mod_params
.power_scheme
!= IWL_POWER_SCHEME_CAM
)
619 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
621 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
623 hw
->wiphy
->max_sched_scan_reqs
= 1;
624 hw
->wiphy
->max_sched_scan_ssids
= PROBE_OPTION_MAX
;
625 hw
->wiphy
->max_match_sets
= IWL_SCAN_MAX_PROFILES
;
626 /* we create the 802.11 header and zero length SSID IE. */
627 hw
->wiphy
->max_sched_scan_ie_len
=
628 SCAN_OFFLOAD_PROBE_REQ_SIZE
- 24 - 2;
629 hw
->wiphy
->max_sched_scan_plans
= IWL_MAX_SCHED_SCAN_PLANS
;
630 hw
->wiphy
->max_sched_scan_plan_interval
= U16_MAX
;
633 * the firmware uses u8 for num of iterations, but 0xff is saved for
634 * infinite loop, so the maximum number of iterations is actually 254.
636 hw
->wiphy
->max_sched_scan_plan_iterations
= 254;
638 hw
->wiphy
->features
|= NL80211_FEATURE_P2P_GO_CTWIN
|
639 NL80211_FEATURE_LOW_PRIORITY_SCAN
|
640 NL80211_FEATURE_P2P_GO_OPPPS
|
641 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE
|
642 NL80211_FEATURE_DYNAMIC_SMPS
|
643 NL80211_FEATURE_STATIC_SMPS
|
644 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION
;
646 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
647 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT
))
648 hw
->wiphy
->features
|= NL80211_FEATURE_TX_POWER_INSERTION
;
649 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
650 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT
))
651 hw
->wiphy
->features
|= NL80211_FEATURE_QUIET
;
653 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
654 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT
))
655 hw
->wiphy
->features
|=
656 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES
;
658 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
659 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT
))
660 hw
->wiphy
->features
|= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES
;
662 if (fw_has_api(&mvm
->fw
->ucode_capa
,
663 IWL_UCODE_TLV_API_SCAN_TSF_REPORT
)) {
664 wiphy_ext_feature_set(hw
->wiphy
,
665 NL80211_EXT_FEATURE_SCAN_START_TIME
);
666 wiphy_ext_feature_set(hw
->wiphy
,
667 NL80211_EXT_FEATURE_BSS_PARENT_TSF
);
668 wiphy_ext_feature_set(hw
->wiphy
,
669 NL80211_EXT_FEATURE_SET_SCAN_DWELL
);
672 mvm
->rts_threshold
= IEEE80211_MAX_RTS_THRESHOLD
;
674 #ifdef CONFIG_PM_SLEEP
675 if (iwl_mvm_is_d0i3_supported(mvm
) &&
676 device_can_wakeup(mvm
->trans
->dev
)) {
677 mvm
->wowlan
.flags
= WIPHY_WOWLAN_ANY
;
678 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
681 if (mvm
->fw
->img
[IWL_UCODE_WOWLAN
].num_sec
&&
682 mvm
->trans
->ops
->d3_suspend
&&
683 mvm
->trans
->ops
->d3_resume
&&
684 device_can_wakeup(mvm
->trans
->dev
)) {
685 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_MAGIC_PKT
|
686 WIPHY_WOWLAN_DISCONNECT
|
687 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
688 WIPHY_WOWLAN_RFKILL_RELEASE
|
689 WIPHY_WOWLAN_NET_DETECT
;
690 if (!iwlwifi_mod_params
.swcrypto
)
691 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
692 WIPHY_WOWLAN_GTK_REKEY_FAILURE
|
693 WIPHY_WOWLAN_4WAY_HANDSHAKE
;
695 mvm
->wowlan
.n_patterns
= IWL_WOWLAN_MAX_PATTERNS
;
696 mvm
->wowlan
.pattern_min_len
= IWL_WOWLAN_MIN_PATTERN_LEN
;
697 mvm
->wowlan
.pattern_max_len
= IWL_WOWLAN_MAX_PATTERN_LEN
;
698 mvm
->wowlan
.max_nd_match_sets
= IWL_SCAN_MAX_PROFILES
;
699 mvm
->wowlan
.tcp
= &iwl_mvm_wowlan_tcp_support
;
700 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
704 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
705 /* assign default bcast filtering configuration */
706 mvm
->bcast_filters
= iwl_mvm_default_bcast_filters
;
709 ret
= iwl_mvm_leds_init(mvm
);
713 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
714 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT
)) {
715 IWL_DEBUG_TDLS(mvm
, "TDLS supported\n");
716 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_TDLS
;
717 ieee80211_hw_set(hw
, TDLS_WIDER_BW
);
720 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
721 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH
)) {
722 IWL_DEBUG_TDLS(mvm
, "TDLS channel switch supported\n");
723 hw
->wiphy
->features
|= NL80211_FEATURE_TDLS_CHANNEL_SWITCH
;
726 hw
->netdev_features
|= mvm
->cfg
->features
;
727 if (!iwl_mvm_is_csum_supported(mvm
)) {
728 hw
->netdev_features
&= ~(IWL_TX_CSUM_NETIF_FLAGS
|
730 /* We may support SW TX CSUM */
731 if (IWL_MVM_SW_TX_CSUM_OFFLOAD
)
732 hw
->netdev_features
|= IWL_TX_CSUM_NETIF_FLAGS
;
735 ret
= ieee80211_register_hw(mvm
->hw
);
737 iwl_mvm_leds_exit(mvm
);
738 mvm
->init_status
|= IWL_MVM_INIT_STATUS_REG_HW_INIT_COMPLETE
;
740 if (mvm
->cfg
->vht_mu_mimo_supported
)
741 wiphy_ext_feature_set(hw
->wiphy
,
742 NL80211_EXT_FEATURE_MU_MIMO_AIR_SNIFFER
);
747 static bool iwl_mvm_defer_tx(struct iwl_mvm
*mvm
,
748 struct ieee80211_sta
*sta
,
751 struct iwl_mvm_sta
*mvmsta
;
755 * double check the IN_D0I3 flag both before and after
756 * taking the spinlock, in order to prevent taking
757 * the spinlock when not needed.
759 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
)))
762 spin_lock(&mvm
->d0i3_tx_lock
);
764 * testing the flag again ensures the skb dequeue
765 * loop (on d0i3 exit) hasn't run yet.
767 if (!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
))
770 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
771 if (mvmsta
->sta_id
== IWL_MVM_INVALID_STA
||
772 mvmsta
->sta_id
!= mvm
->d0i3_ap_sta_id
)
775 __skb_queue_tail(&mvm
->d0i3_tx
, skb
);
776 ieee80211_stop_queues(mvm
->hw
);
779 iwl_mvm_ref(mvm
, IWL_MVM_REF_TX
);
780 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX
);
784 spin_unlock(&mvm
->d0i3_tx_lock
);
788 static void iwl_mvm_mac_tx(struct ieee80211_hw
*hw
,
789 struct ieee80211_tx_control
*control
,
792 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
793 struct ieee80211_sta
*sta
= control
->sta
;
794 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
795 struct ieee80211_hdr
*hdr
= (void *)skb
->data
;
797 if (iwl_mvm_is_radio_killed(mvm
)) {
798 IWL_DEBUG_DROP(mvm
, "Dropping - RF/CT KILL\n");
802 if (IEEE80211_SKB_CB(skb
)->hw_queue
== IWL_MVM_OFFCHANNEL_QUEUE
&&
803 !test_bit(IWL_MVM_STATUS_ROC_RUNNING
, &mvm
->status
) &&
804 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING
, &mvm
->status
))
807 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
808 if (unlikely(info
->flags
& IEEE80211_TX_CTL_NO_PS_BUFFER
&&
809 ieee80211_is_mgmt(hdr
->frame_control
) &&
810 !ieee80211_is_deauth(hdr
->frame_control
) &&
811 !ieee80211_is_disassoc(hdr
->frame_control
) &&
812 !ieee80211_is_action(hdr
->frame_control
)))
816 if (iwl_mvm_defer_tx(mvm
, sta
, skb
))
818 if (iwl_mvm_tx_skb(mvm
, skb
, sta
))
823 if (iwl_mvm_tx_skb_non_sta(mvm
, skb
))
827 ieee80211_free_txskb(hw
, skb
);
830 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg
*cfg
)
832 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
)
837 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg
*cfg
)
839 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
)
841 if (iwlwifi_mod_params
.disable_11n
& IWL_ENABLE_HT_TXAGG
)
844 /* enabled by default */
848 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
850 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
852 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
856 iwl_mvm_ampdu_check_trigger(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
857 struct ieee80211_sta
*sta
, u16 tid
, u16 rx_ba_ssn
,
858 enum ieee80211_ampdu_mlme_action action
)
860 struct iwl_fw_dbg_trigger_tlv
*trig
;
861 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
863 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
866 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
867 ba_trig
= (void *)trig
->data
;
869 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
873 case IEEE80211_AMPDU_TX_OPERATIONAL
: {
874 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
875 struct iwl_mvm_tid_data
*tid_data
= &mvmsta
->tid_data
[tid
];
877 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->tx_ba_start
, tid
,
878 "TX AGG START: MAC %pM tid %d ssn %d\n",
879 sta
->addr
, tid
, tid_data
->ssn
);
882 case IEEE80211_AMPDU_TX_STOP_CONT
:
883 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->tx_ba_stop
, tid
,
884 "TX AGG STOP: MAC %pM tid %d\n",
887 case IEEE80211_AMPDU_RX_START
:
888 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->rx_ba_start
, tid
,
889 "RX AGG START: MAC %pM tid %d ssn %d\n",
890 sta
->addr
, tid
, rx_ba_ssn
);
892 case IEEE80211_AMPDU_RX_STOP
:
893 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->rx_ba_stop
, tid
,
894 "RX AGG STOP: MAC %pM tid %d\n",
902 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw
*hw
,
903 struct ieee80211_vif
*vif
,
904 struct ieee80211_ampdu_params
*params
)
906 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
908 bool tx_agg_ref
= false;
909 struct ieee80211_sta
*sta
= params
->sta
;
910 enum ieee80211_ampdu_mlme_action action
= params
->action
;
911 u16 tid
= params
->tid
;
912 u16
*ssn
= ¶ms
->ssn
;
913 u8 buf_size
= params
->buf_size
;
914 bool amsdu
= params
->amsdu
;
915 u16 timeout
= params
->timeout
;
917 IWL_DEBUG_HT(mvm
, "A-MPDU action on addr %pM tid %d: action %d\n",
918 sta
->addr
, tid
, action
);
920 if (!(mvm
->nvm_data
->sku_cap_11n_enable
))
923 /* return from D0i3 before starting a new Tx aggregation */
925 case IEEE80211_AMPDU_TX_START
:
926 case IEEE80211_AMPDU_TX_STOP_CONT
:
927 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
928 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
929 case IEEE80211_AMPDU_TX_OPERATIONAL
:
931 * for tx start, wait synchronously until D0i3 exit to
932 * get the correct sequence number for the tid.
933 * additionally, some other ampdu actions use direct
934 * target access, which is not handled automatically
935 * by the trans layer (unlike commands), so wait for
936 * d0i3 exit in these cases as well.
938 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_TX_AGG
);
948 mutex_lock(&mvm
->mutex
);
951 case IEEE80211_AMPDU_RX_START
:
952 if (!iwl_enable_rx_ampdu(mvm
->cfg
)) {
956 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, *ssn
, true, buf_size
,
959 case IEEE80211_AMPDU_RX_STOP
:
960 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, 0, false, buf_size
,
963 case IEEE80211_AMPDU_TX_START
:
964 if (!iwl_enable_tx_ampdu(mvm
->cfg
)) {
968 ret
= iwl_mvm_sta_tx_agg_start(mvm
, vif
, sta
, tid
, ssn
);
970 case IEEE80211_AMPDU_TX_STOP_CONT
:
971 ret
= iwl_mvm_sta_tx_agg_stop(mvm
, vif
, sta
, tid
);
973 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
974 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
975 ret
= iwl_mvm_sta_tx_agg_flush(mvm
, vif
, sta
, tid
);
977 case IEEE80211_AMPDU_TX_OPERATIONAL
:
978 ret
= iwl_mvm_sta_tx_agg_oper(mvm
, vif
, sta
, tid
,
990 if (action
== IEEE80211_AMPDU_RX_START
)
993 iwl_mvm_ampdu_check_trigger(mvm
, vif
, sta
, tid
,
996 mutex_unlock(&mvm
->mutex
);
999 * If the tid is marked as started, we won't use it for offloaded
1000 * traffic on the next D0i3 entry. It's safe to unref.
1003 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX_AGG
);
1008 static void iwl_mvm_cleanup_iterator(void *data
, u8
*mac
,
1009 struct ieee80211_vif
*vif
)
1011 struct iwl_mvm
*mvm
= data
;
1012 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1014 mvmvif
->uploaded
= false;
1015 mvmvif
->ap_sta_id
= IWL_MVM_INVALID_STA
;
1017 spin_lock_bh(&mvm
->time_event_lock
);
1018 iwl_mvm_te_clear_data(mvm
, &mvmvif
->time_event_data
);
1019 spin_unlock_bh(&mvm
->time_event_lock
);
1021 mvmvif
->phy_ctxt
= NULL
;
1022 memset(&mvmvif
->bf_data
, 0, sizeof(mvmvif
->bf_data
));
1025 static void iwl_mvm_restart_cleanup(struct iwl_mvm
*mvm
)
1027 /* clear the D3 reconfig, we only need it to avoid dumping a
1028 * firmware coredump on reconfiguration, we shouldn't do that
1029 * on D3->D0 transition
1031 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG
, &mvm
->status
)) {
1032 mvm
->fw_dump_desc
= &iwl_mvm_dump_desc_assert
;
1033 iwl_mvm_fw_error_dump(mvm
);
1036 /* cleanup all stale references (scan, roc), but keep the
1037 * ucode_down ref until reconfig is complete
1039 iwl_mvm_unref_all_except(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1041 iwl_mvm_stop_device(mvm
);
1043 mvm
->scan_status
= 0;
1044 mvm
->ps_disabled
= false;
1045 mvm
->calibrating
= false;
1047 /* just in case one was running */
1048 iwl_mvm_cleanup_roc_te(mvm
);
1049 ieee80211_remain_on_channel_expired(mvm
->hw
);
1052 * cleanup all interfaces, even inactive ones, as some might have
1053 * gone down during the HW restart
1055 ieee80211_iterate_interfaces(mvm
->hw
, 0, iwl_mvm_cleanup_iterator
, mvm
);
1057 mvm
->p2p_device_vif
= NULL
;
1058 mvm
->d0i3_ap_sta_id
= IWL_MVM_INVALID_STA
;
1060 iwl_mvm_reset_phy_ctxts(mvm
);
1061 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
1062 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
1063 memset(mvm
->sta_deferred_frames
, 0, sizeof(mvm
->sta_deferred_frames
));
1064 memset(mvm
->tfd_drained
, 0, sizeof(mvm
->tfd_drained
));
1065 memset(&mvm
->last_bt_notif
, 0, sizeof(mvm
->last_bt_notif
));
1066 memset(&mvm
->last_bt_ci_cmd
, 0, sizeof(mvm
->last_bt_ci_cmd
));
1068 ieee80211_wake_queues(mvm
->hw
);
1070 /* clear any stale d0i3 state */
1071 clear_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
);
1074 mvm
->rx_ba_sessions
= 0;
1075 mvm
->fw_dbg_conf
= FW_DBG_INVALID
;
1077 /* keep statistics ticking */
1078 iwl_mvm_accu_radio_stats(mvm
);
1081 int __iwl_mvm_mac_start(struct iwl_mvm
*mvm
)
1085 lockdep_assert_held(&mvm
->mutex
);
1087 if (test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED
, &mvm
->status
)) {
1089 * Now convert the HW_RESTART_REQUESTED flag to IN_HW_RESTART
1090 * so later code will - from now on - see that we're doing it.
1092 set_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1093 clear_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED
, &mvm
->status
);
1094 /* Clean up some internal and mac80211 state on restart */
1095 iwl_mvm_restart_cleanup(mvm
);
1097 /* Hold the reference to prevent runtime suspend while
1098 * the start procedure runs. It's a bit confusing
1099 * that the UCODE_DOWN reference is taken, but it just
1100 * means "UCODE is not UP yet". ( TODO: rename this
1103 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1105 ret
= iwl_mvm_up(mvm
);
1107 if (ret
&& test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
1108 /* Something went wrong - we need to finish some cleanup
1109 * that normally iwl_mvm_mac_restart_complete() below
1112 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1113 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
1119 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
1121 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1124 /* Some hw restart cleanups must not hold the mutex */
1125 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
1127 * Make sure we are out of d0i3. This is needed
1128 * to make sure the reference accounting is correct
1129 * (and there is no stale d0i3_exit_work).
1131 wait_event_timeout(mvm
->d0i3_exit_waitq
,
1132 !test_bit(IWL_MVM_STATUS_IN_D0I3
,
1137 mutex_lock(&mvm
->mutex
);
1138 ret
= __iwl_mvm_mac_start(mvm
);
1139 mutex_unlock(&mvm
->mutex
);
1144 static void iwl_mvm_restart_complete(struct iwl_mvm
*mvm
)
1148 mutex_lock(&mvm
->mutex
);
1150 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1151 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
1152 ret
= iwl_mvm_update_quotas(mvm
, true, NULL
);
1154 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
1157 /* allow transport/FW low power modes */
1158 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1161 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1162 * of packets the FW sent out, so we must reconnect.
1164 iwl_mvm_teardown_tdls_peers(mvm
);
1166 mutex_unlock(&mvm
->mutex
);
1169 static void iwl_mvm_resume_complete(struct iwl_mvm
*mvm
)
1171 if (iwl_mvm_is_d0i3_supported(mvm
) &&
1172 iwl_mvm_enter_d0i3_on_suspend(mvm
))
1173 WARN_ONCE(!wait_event_timeout(mvm
->d0i3_exit_waitq
,
1174 !test_bit(IWL_MVM_STATUS_IN_D0I3
,
1177 "D0i3 exit on resume timed out\n");
1181 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw
*hw
,
1182 enum ieee80211_reconfig_type reconfig_type
)
1184 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1186 switch (reconfig_type
) {
1187 case IEEE80211_RECONFIG_TYPE_RESTART
:
1188 iwl_mvm_restart_complete(mvm
);
1190 case IEEE80211_RECONFIG_TYPE_SUSPEND
:
1191 iwl_mvm_resume_complete(mvm
);
1196 void __iwl_mvm_mac_stop(struct iwl_mvm
*mvm
)
1198 lockdep_assert_held(&mvm
->mutex
);
1200 /* firmware counters are obviously reset now, but we shouldn't
1201 * partially track so also clear the fw_reset_accu counters.
1203 memset(&mvm
->accu_radio_stats
, 0, sizeof(mvm
->accu_radio_stats
));
1205 /* async_handlers_wk is now blocked */
1208 * The work item could be running or queued if the
1209 * ROC time event stops just as we get here.
1211 flush_work(&mvm
->roc_done_wk
);
1213 iwl_mvm_stop_device(mvm
);
1215 iwl_mvm_async_handlers_purge(mvm
);
1216 /* async_handlers_list is empty and will stay empty: HW is stopped */
1218 /* the fw is stopped, the aux sta is dead: clean up driver state */
1219 iwl_mvm_del_aux_sta(mvm
);
1222 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1223 * won't be called in this case).
1224 * But make sure to cleanup interfaces that have gone down before/during
1225 * HW restart was requested.
1227 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
1228 ieee80211_iterate_interfaces(mvm
->hw
, 0,
1229 iwl_mvm_cleanup_iterator
, mvm
);
1231 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1232 * make sure there's nothing left there and warn if any is found.
1234 if (fw_has_capa(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_CAPA_UMAC_SCAN
)) {
1237 for (i
= 0; i
< mvm
->max_scans
; i
++) {
1238 if (WARN_ONCE(mvm
->scan_uid_status
[i
],
1239 "UMAC scan UID %d status was not cleaned\n",
1241 mvm
->scan_uid_status
[i
] = 0;
1246 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
1248 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1250 flush_work(&mvm
->d0i3_exit_work
);
1251 flush_work(&mvm
->async_handlers_wk
);
1252 flush_work(&mvm
->add_stream_wk
);
1255 * Lock and clear the firmware running bit here already, so that
1256 * new commands coming in elsewhere, e.g. from debugfs, will not
1257 * be able to proceed. This is important here because one of those
1258 * debugfs files causes the fw_dump_wk to be triggered, and if we
1259 * don't stop debugfs accesses before canceling that it could be
1260 * retriggered after we flush it but before we've cleared the bit.
1262 clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING
, &mvm
->status
);
1264 cancel_delayed_work_sync(&mvm
->fw_dump_wk
);
1265 cancel_delayed_work_sync(&mvm
->cs_tx_unblock_dwork
);
1266 cancel_delayed_work_sync(&mvm
->scan_timeout_dwork
);
1267 iwl_mvm_free_fw_dump_desc(mvm
);
1269 mutex_lock(&mvm
->mutex
);
1270 __iwl_mvm_mac_stop(mvm
);
1271 mutex_unlock(&mvm
->mutex
);
1274 * The worker might have been waiting for the mutex, let it run and
1275 * discover that its list is now empty.
1277 cancel_work_sync(&mvm
->async_handlers_wk
);
1280 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
1284 lockdep_assert_held(&mvm
->mutex
);
1286 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
1287 if (!mvm
->phy_ctxts
[i
].ref
)
1288 return &mvm
->phy_ctxts
[i
];
1290 IWL_ERR(mvm
, "No available PHY context\n");
1294 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
1297 struct iwl_dev_tx_power_cmd cmd
= {
1298 .v3
.set_mode
= cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC
),
1299 .v3
.mac_context_id
=
1300 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif
)->id
),
1301 .v3
.pwr_restriction
= cpu_to_le16(8 * tx_power
),
1303 int len
= sizeof(cmd
);
1305 if (tx_power
== IWL_DEFAULT_MAX_TX_POWER
)
1306 cmd
.v3
.pwr_restriction
= cpu_to_le16(IWL_DEV_MAX_TX_POWER
);
1308 if (!fw_has_capa(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_CAPA_TX_POWER_ACK
))
1309 len
= sizeof(cmd
.v3
);
1311 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, 0, len
, &cmd
);
1314 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
1315 struct ieee80211_vif
*vif
)
1317 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1318 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1324 * make sure D0i3 exit is completed, otherwise a target access
1325 * during tx queue configuration could be done when still in
1328 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_ADD_IF
);
1333 * Not much to do here. The stack will not allow interface
1334 * types or combinations that we didn't advertise, so we
1335 * don't really have to check the types.
1338 mutex_lock(&mvm
->mutex
);
1340 /* make sure that beacon statistics don't go backwards with FW reset */
1341 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
1342 mvmvif
->beacon_stats
.accu_num_beacons
+=
1343 mvmvif
->beacon_stats
.num_beacons
;
1345 /* Allocate resources for the MAC context, and add it to the fw */
1346 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
1350 /* Counting number of interfaces is needed for legacy PM */
1351 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1355 * The AP binding flow can be done only after the beacon
1356 * template is configured (which happens only in the mac80211
1357 * start_ap() flow), and adding the broadcast station can happen
1358 * only after the binding.
1359 * In addition, since modifying the MAC before adding a bcast
1360 * station is not allowed by the FW, delay the adding of MAC context to
1361 * the point where we can also add the bcast station.
1362 * In short: there's not much we can do at this point, other than
1363 * allocating resources :)
1365 if (vif
->type
== NL80211_IFTYPE_AP
||
1366 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1367 ret
= iwl_mvm_alloc_bcast_sta(mvm
, vif
);
1369 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
1373 if (iwl_mvm_is_dqa_supported(mvm
)) {
1375 * Only queue for this station is the mcast queue,
1376 * which shouldn't be in TFD mask anyway
1378 ret
= iwl_mvm_allocate_int_sta(mvm
, &mvmvif
->mcast_sta
,
1385 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1389 mvmvif
->features
|= hw
->netdev_features
;
1391 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1395 ret
= iwl_mvm_power_update_mac(mvm
);
1397 goto out_remove_mac
;
1399 /* beacon filtering */
1400 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
1402 goto out_remove_mac
;
1404 if (!mvm
->bf_allowed_vif
&&
1405 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
) {
1406 mvm
->bf_allowed_vif
= mvmvif
;
1407 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
1408 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
1412 * P2P_DEVICE interface does not have a channel context assigned to it,
1413 * so a dedicated PHY context is allocated to it and the corresponding
1414 * MAC context is bound to it at this stage.
1416 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1418 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1419 if (!mvmvif
->phy_ctxt
) {
1424 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1425 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1429 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
);
1433 /* Save a pointer to p2p device vif, so it can later be used to
1434 * update the p2p device MAC when a GO is started/stopped */
1435 mvm
->p2p_device_vif
= vif
;
1438 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1442 iwl_mvm_binding_remove_vif(mvm
, vif
);
1444 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1446 if (mvm
->bf_allowed_vif
== mvmvif
) {
1447 mvm
->bf_allowed_vif
= NULL
;
1448 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1449 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1452 mvmvif
->phy_ctxt
= NULL
;
1453 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1455 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1458 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1460 mutex_unlock(&mvm
->mutex
);
1462 iwl_mvm_unref(mvm
, IWL_MVM_REF_ADD_IF
);
1467 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
1468 struct ieee80211_vif
*vif
)
1470 u32 tfd_msk
= iwl_mvm_mac_get_queues_mask(vif
);
1472 if (tfd_msk
&& !iwl_mvm_is_dqa_supported(mvm
)) {
1474 * mac80211 first removes all the stations of the vif and
1475 * then removes the vif. When it removes a station it also
1476 * flushes the AMPDU session. So by now, all the AMPDU sessions
1477 * of all the stations of this vif are closed, and the queues
1478 * of these AMPDU sessions are properly closed.
1479 * We still need to take care of the shared queues of the vif.
1481 * For DQA mode there is no need - broacast and multicast queue
1482 * are flushed separately.
1484 mutex_lock(&mvm
->mutex
);
1485 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, 0);
1486 mutex_unlock(&mvm
->mutex
);
1489 * There are transports that buffer a few frames in the host.
1490 * For these, the flush above isn't enough since while we were
1491 * flushing, the transport might have sent more frames to the
1492 * device. To solve this, wait here until the transport is
1493 * empty. Technically, this could have replaced the flush
1494 * above, but flush is much faster than draining. So flush
1495 * first, and drain to make sure we have no frames in the
1496 * transport anymore.
1497 * If a station still had frames on the shared queues, it is
1498 * already marked as draining, so to complete the draining, we
1499 * just need to wait until the transport is empty.
1501 iwl_trans_wait_tx_queues_empty(mvm
->trans
, tfd_msk
);
1504 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1506 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1507 * We assume here that all the packets sent to the OFFCHANNEL
1508 * queue are sent in ROC session.
1510 flush_work(&mvm
->roc_done_wk
);
1513 * By now, all the AC queues are empty. The AGG queues are
1514 * empty too. We already got all the Tx responses for all the
1515 * packets in the queues. The drain work can have been
1516 * triggered. Flush it.
1518 flush_work(&mvm
->sta_drained_wk
);
1522 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
1523 struct ieee80211_vif
*vif
)
1525 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1526 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1528 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1530 mutex_lock(&mvm
->mutex
);
1532 if (mvm
->bf_allowed_vif
== mvmvif
) {
1533 mvm
->bf_allowed_vif
= NULL
;
1534 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1535 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1538 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
1541 * For AP/GO interface, the tear down of the resources allocated to the
1542 * interface is be handled as part of the stop_ap flow.
1544 if (vif
->type
== NL80211_IFTYPE_AP
||
1545 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1546 #ifdef CONFIG_NL80211_TESTMODE
1547 if (vif
== mvm
->noa_vif
) {
1548 mvm
->noa_vif
= NULL
;
1549 mvm
->noa_duration
= 0;
1552 iwl_mvm_dealloc_int_sta(mvm
, &mvmvif
->mcast_sta
);
1553 iwl_mvm_dealloc_bcast_sta(mvm
, vif
);
1557 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1558 mvm
->p2p_device_vif
= NULL
;
1559 iwl_mvm_rm_bcast_sta(mvm
, vif
);
1560 iwl_mvm_binding_remove_vif(mvm
, vif
);
1561 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1562 mvmvif
->phy_ctxt
= NULL
;
1565 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1568 iwl_mvm_power_update_mac(mvm
);
1569 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1572 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1573 mutex_unlock(&mvm
->mutex
);
1576 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
1581 struct iwl_mvm_mc_iter_data
{
1582 struct iwl_mvm
*mvm
;
1586 static void iwl_mvm_mc_iface_iterator(void *_data
, u8
*mac
,
1587 struct ieee80211_vif
*vif
)
1589 struct iwl_mvm_mc_iter_data
*data
= _data
;
1590 struct iwl_mvm
*mvm
= data
->mvm
;
1591 struct iwl_mcast_filter_cmd
*cmd
= mvm
->mcast_filter_cmd
;
1594 /* if we don't have free ports, mcast frames will be dropped */
1595 if (WARN_ON_ONCE(data
->port_id
>= MAX_PORT_ID_NUM
))
1598 if (vif
->type
!= NL80211_IFTYPE_STATION
||
1599 !vif
->bss_conf
.assoc
)
1602 cmd
->port_id
= data
->port_id
++;
1603 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
1604 len
= roundup(sizeof(*cmd
) + cmd
->count
* ETH_ALEN
, 4);
1606 ret
= iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_ASYNC
, len
, cmd
);
1608 IWL_ERR(mvm
, "mcast filter cmd error. ret=%d\n", ret
);
1611 static void iwl_mvm_recalc_multicast(struct iwl_mvm
*mvm
)
1613 struct iwl_mvm_mc_iter_data iter_data
= {
1617 lockdep_assert_held(&mvm
->mutex
);
1619 if (WARN_ON_ONCE(!mvm
->mcast_filter_cmd
))
1622 ieee80211_iterate_active_interfaces_atomic(
1623 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1624 iwl_mvm_mc_iface_iterator
, &iter_data
);
1627 static u64
iwl_mvm_prepare_multicast(struct ieee80211_hw
*hw
,
1628 struct netdev_hw_addr_list
*mc_list
)
1630 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1631 struct iwl_mcast_filter_cmd
*cmd
;
1632 struct netdev_hw_addr
*addr
;
1637 addr_count
= netdev_hw_addr_list_count(mc_list
);
1638 pass_all
= addr_count
> MAX_MCAST_FILTERING_ADDRESSES
||
1639 IWL_MVM_FW_MCAST_FILTER_PASS_ALL
;
1643 len
= roundup(sizeof(*cmd
) + addr_count
* ETH_ALEN
, 4);
1644 cmd
= kzalloc(len
, GFP_ATOMIC
);
1650 return (u64
)(unsigned long)cmd
;
1653 netdev_hw_addr_list_for_each(addr
, mc_list
) {
1654 IWL_DEBUG_MAC80211(mvm
, "mcast addr (%d): %pM\n",
1655 cmd
->count
, addr
->addr
);
1656 memcpy(&cmd
->addr_list
[cmd
->count
* ETH_ALEN
],
1657 addr
->addr
, ETH_ALEN
);
1661 return (u64
)(unsigned long)cmd
;
1664 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
1665 unsigned int changed_flags
,
1666 unsigned int *total_flags
,
1669 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1670 struct iwl_mcast_filter_cmd
*cmd
= (void *)(unsigned long)multicast
;
1672 mutex_lock(&mvm
->mutex
);
1674 /* replace previous configuration */
1675 kfree(mvm
->mcast_filter_cmd
);
1676 mvm
->mcast_filter_cmd
= cmd
;
1681 iwl_mvm_recalc_multicast(mvm
);
1683 mutex_unlock(&mvm
->mutex
);
1687 static void iwl_mvm_config_iface_filter(struct ieee80211_hw
*hw
,
1688 struct ieee80211_vif
*vif
,
1689 unsigned int filter_flags
,
1690 unsigned int changed_flags
)
1692 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1694 /* We support only filter for probe requests */
1695 if (!(changed_flags
& FIF_PROBE_REQ
))
1698 /* Supported only for p2p client interfaces */
1699 if (vif
->type
!= NL80211_IFTYPE_STATION
|| !vif
->bss_conf
.assoc
||
1703 mutex_lock(&mvm
->mutex
);
1704 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
1705 mutex_unlock(&mvm
->mutex
);
1708 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1709 struct iwl_bcast_iter_data
{
1710 struct iwl_mvm
*mvm
;
1711 struct iwl_bcast_filter_cmd
*cmd
;
1716 iwl_mvm_set_bcast_filter(struct ieee80211_vif
*vif
,
1717 const struct iwl_fw_bcast_filter
*in_filter
,
1718 struct iwl_fw_bcast_filter
*out_filter
)
1720 struct iwl_fw_bcast_filter_attr
*attr
;
1723 memcpy(out_filter
, in_filter
, sizeof(*out_filter
));
1725 for (i
= 0; i
< ARRAY_SIZE(out_filter
->attrs
); i
++) {
1726 attr
= &out_filter
->attrs
[i
];
1731 switch (attr
->reserved1
) {
1732 case cpu_to_le16(BC_FILTER_MAGIC_IP
):
1733 if (vif
->bss_conf
.arp_addr_cnt
!= 1) {
1738 attr
->val
= vif
->bss_conf
.arp_addr_list
[0];
1740 case cpu_to_le16(BC_FILTER_MAGIC_MAC
):
1741 attr
->val
= *(__be32
*)&vif
->addr
[2];
1746 attr
->reserved1
= 0;
1747 out_filter
->num_attrs
++;
1751 static void iwl_mvm_bcast_filter_iterator(void *_data
, u8
*mac
,
1752 struct ieee80211_vif
*vif
)
1754 struct iwl_bcast_iter_data
*data
= _data
;
1755 struct iwl_mvm
*mvm
= data
->mvm
;
1756 struct iwl_bcast_filter_cmd
*cmd
= data
->cmd
;
1757 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1758 struct iwl_fw_bcast_mac
*bcast_mac
;
1761 if (WARN_ON(mvmvif
->id
>= ARRAY_SIZE(cmd
->macs
)))
1764 bcast_mac
= &cmd
->macs
[mvmvif
->id
];
1767 * enable filtering only for associated stations, but not for P2P
1770 if (vif
->type
!= NL80211_IFTYPE_STATION
|| vif
->p2p
||
1771 !vif
->bss_conf
.assoc
)
1774 bcast_mac
->default_discard
= 1;
1776 /* copy all configured filters */
1777 for (i
= 0; mvm
->bcast_filters
[i
].attrs
[0].mask
; i
++) {
1779 * Make sure we don't exceed our filters limit.
1780 * if there is still a valid filter to be configured,
1781 * be on the safe side and just allow bcast for this mac.
1783 if (WARN_ON_ONCE(data
->current_filter
>=
1784 ARRAY_SIZE(cmd
->filters
))) {
1785 bcast_mac
->default_discard
= 0;
1786 bcast_mac
->attached_filters
= 0;
1790 iwl_mvm_set_bcast_filter(vif
,
1791 &mvm
->bcast_filters
[i
],
1792 &cmd
->filters
[data
->current_filter
]);
1794 /* skip current filter if it contains no attributes */
1795 if (!cmd
->filters
[data
->current_filter
].num_attrs
)
1798 /* attach the filter to current mac */
1799 bcast_mac
->attached_filters
|=
1800 cpu_to_le16(BIT(data
->current_filter
));
1802 data
->current_filter
++;
1806 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm
*mvm
,
1807 struct iwl_bcast_filter_cmd
*cmd
)
1809 struct iwl_bcast_iter_data iter_data
= {
1814 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL
)
1817 memset(cmd
, 0, sizeof(*cmd
));
1818 cmd
->max_bcast_filters
= ARRAY_SIZE(cmd
->filters
);
1819 cmd
->max_macs
= ARRAY_SIZE(cmd
->macs
);
1821 #ifdef CONFIG_IWLWIFI_DEBUGFS
1822 /* use debugfs filters/macs if override is configured */
1823 if (mvm
->dbgfs_bcast_filtering
.override
) {
1824 memcpy(cmd
->filters
, &mvm
->dbgfs_bcast_filtering
.cmd
.filters
,
1825 sizeof(cmd
->filters
));
1826 memcpy(cmd
->macs
, &mvm
->dbgfs_bcast_filtering
.cmd
.macs
,
1832 /* if no filters are configured, do nothing */
1833 if (!mvm
->bcast_filters
)
1836 /* configure and attach these filters for each associated sta vif */
1837 ieee80211_iterate_active_interfaces(
1838 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1839 iwl_mvm_bcast_filter_iterator
, &iter_data
);
1844 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
)
1846 struct iwl_bcast_filter_cmd cmd
;
1848 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BCAST_FILTERING
))
1851 if (!iwl_mvm_bcast_filter_build_cmd(mvm
, &cmd
))
1854 return iwl_mvm_send_cmd_pdu(mvm
, BCAST_FILTER_CMD
, 0,
1858 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
)
1864 static int iwl_mvm_update_mu_groups(struct iwl_mvm
*mvm
,
1865 struct ieee80211_vif
*vif
)
1867 struct iwl_mu_group_mgmt_cmd cmd
= {};
1869 memcpy(cmd
.membership_status
, vif
->bss_conf
.mu_group
.membership
,
1870 WLAN_MEMBERSHIP_LEN
);
1871 memcpy(cmd
.user_position
, vif
->bss_conf
.mu_group
.position
,
1872 WLAN_USER_POSITION_LEN
);
1874 return iwl_mvm_send_cmd_pdu(mvm
,
1875 WIDE_ID(DATA_PATH_GROUP
,
1876 UPDATE_MU_GROUPS_CMD
),
1877 0, sizeof(cmd
), &cmd
);
1880 static void iwl_mvm_mu_mimo_iface_iterator(void *_data
, u8
*mac
,
1881 struct ieee80211_vif
*vif
)
1883 if (vif
->mu_mimo_owner
) {
1884 struct iwl_mu_group_mgmt_notif
*notif
= _data
;
1887 * MU-MIMO Group Id action frame is little endian. We treat
1888 * the data received from firmware as if it came from the
1889 * action frame, so no conversion is needed.
1891 ieee80211_update_mu_groups(vif
,
1892 (u8
*)¬if
->membership_status
,
1893 (u8
*)¬if
->user_position
);
1897 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm
*mvm
,
1898 struct iwl_rx_cmd_buffer
*rxb
)
1900 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
1901 struct iwl_mu_group_mgmt_notif
*notif
= (void *)pkt
->data
;
1903 ieee80211_iterate_active_interfaces_atomic(
1904 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1905 iwl_mvm_mu_mimo_iface_iterator
, notif
);
1908 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
1909 struct ieee80211_vif
*vif
,
1910 struct ieee80211_bss_conf
*bss_conf
,
1913 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1917 * Re-calculate the tsf id, as the master-slave relations depend on the
1918 * beacon interval, which was not known when the station interface was
1921 if (changes
& BSS_CHANGED_ASSOC
&& bss_conf
->assoc
)
1922 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1924 if (changes
& BSS_CHANGED_ASSOC
&& !bss_conf
->assoc
&&
1926 iwl_mvm_send_lqm_cmd(vif
, LQM_CMD_OPERATION_STOP_MEASUREMENT
,
1930 * If we're not associated yet, take the (new) BSSID before associating
1931 * so the firmware knows. If we're already associated, then use the old
1932 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1933 * branch for disassociation below.
1935 if (changes
& BSS_CHANGED_BSSID
&& !mvmvif
->associated
)
1936 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1938 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, mvmvif
->bssid
);
1940 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1942 /* after sending it once, adopt mac80211 data */
1943 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1944 mvmvif
->associated
= bss_conf
->assoc
;
1946 if (changes
& BSS_CHANGED_ASSOC
) {
1947 if (bss_conf
->assoc
) {
1948 /* clear statistics to get clean beacon counter */
1949 iwl_mvm_request_statistics(mvm
, true);
1950 memset(&mvmvif
->beacon_stats
, 0,
1951 sizeof(mvmvif
->beacon_stats
));
1953 /* add quota for this interface */
1954 ret
= iwl_mvm_update_quotas(mvm
, true, NULL
);
1956 IWL_ERR(mvm
, "failed to update quotas\n");
1960 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
1963 * If we're restarting then the firmware will
1964 * obviously have lost synchronisation with
1965 * the AP. It will attempt to synchronise by
1966 * itself, but we can make it more reliable by
1967 * scheduling a session protection time event.
1969 * The firmware needs to receive a beacon to
1970 * catch up with synchronisation, use 110% of
1971 * the beacon interval.
1973 * Set a large maximum delay to allow for more
1974 * than a single interface.
1976 u32 dur
= (11 * vif
->bss_conf
.beacon_int
) / 10;
1977 iwl_mvm_protect_session(mvm
, vif
, dur
, dur
,
1981 iwl_mvm_sf_update(mvm
, vif
, false);
1982 iwl_mvm_power_vif_assoc(mvm
, vif
);
1984 iwl_mvm_ref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1985 iwl_mvm_update_smps(mvm
, vif
,
1986 IWL_MVM_SMPS_REQ_PROT
,
1987 IEEE80211_SMPS_DYNAMIC
);
1989 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_INVALID_STA
) {
1991 * If update fails - SF might be running in associated
1992 * mode while disassociated - which is forbidden.
1994 WARN_ONCE(iwl_mvm_sf_update(mvm
, vif
, false),
1995 "Failed to update SF upon disassociation\n");
1998 * If we get an assert during the connection (after the
1999 * station has been added, but before the vif is set
2000 * to associated), mac80211 will re-add the station and
2001 * then configure the vif. Since the vif is not
2002 * associated, we would remove the station here and
2003 * this would fail the recovery.
2005 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
2008 * Remove AP station now that
2009 * the MAC is unassoc
2011 ret
= iwl_mvm_rm_sta_id(mvm
, vif
,
2015 "failed to remove AP station\n");
2017 if (mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
2018 mvm
->d0i3_ap_sta_id
=
2019 IWL_MVM_INVALID_STA
;
2020 mvmvif
->ap_sta_id
= IWL_MVM_INVALID_STA
;
2023 /* remove quota for this interface */
2024 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
2026 IWL_ERR(mvm
, "failed to update quotas\n");
2029 iwl_mvm_unref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
2031 /* this will take the cleared BSSID from bss_conf */
2032 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2035 "failed to update MAC %pM (clear after unassoc)\n",
2040 * The firmware tracks the MU-MIMO group on its own.
2041 * However, on HW restart we should restore this data.
2043 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2044 (changes
& BSS_CHANGED_MU_GROUPS
) && vif
->mu_mimo_owner
) {
2045 ret
= iwl_mvm_update_mu_groups(mvm
, vif
);
2048 "failed to update VHT MU_MIMO groups\n");
2051 iwl_mvm_recalc_multicast(mvm
);
2052 iwl_mvm_configure_bcast_filter(mvm
);
2054 /* reset rssi values */
2055 mvmvif
->bf_data
.ave_beacon_signal
= 0;
2057 iwl_mvm_bt_coex_vif_change(mvm
);
2058 iwl_mvm_update_smps(mvm
, vif
, IWL_MVM_SMPS_REQ_TT
,
2059 IEEE80211_SMPS_AUTOMATIC
);
2060 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
2061 IWL_UCODE_TLV_CAPA_UMAC_SCAN
))
2062 iwl_mvm_config_scan(mvm
);
2065 if (changes
& BSS_CHANGED_BEACON_INFO
) {
2067 * We received a beacon from the associated AP so
2068 * remove the session protection.
2070 iwl_mvm_remove_time_event(mvm
, mvmvif
,
2071 &mvmvif
->time_event_data
);
2073 iwl_mvm_sf_update(mvm
, vif
, false);
2074 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
2077 if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_P2P_PS
| BSS_CHANGED_QOS
|
2079 * Send power command on every beacon change,
2080 * because we may have not enabled beacon abort yet.
2082 BSS_CHANGED_BEACON_INFO
)) {
2083 ret
= iwl_mvm_power_update_mac(mvm
);
2085 IWL_ERR(mvm
, "failed to update power mode\n");
2088 if (changes
& BSS_CHANGED_TXPOWER
) {
2089 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
2091 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
2094 if (changes
& BSS_CHANGED_CQM
) {
2095 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed\n");
2096 /* reset cqm events tracking */
2097 mvmvif
->bf_data
.last_cqm_event
= 0;
2098 if (mvmvif
->bf_data
.bf_enabled
) {
2099 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
2102 "failed to update CQM thresholds\n");
2106 if (changes
& BSS_CHANGED_ARP_FILTER
) {
2107 IWL_DEBUG_MAC80211(mvm
, "arp filter changed\n");
2108 iwl_mvm_configure_bcast_filter(mvm
);
2112 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw
*hw
,
2113 struct ieee80211_vif
*vif
)
2115 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2116 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2120 * iwl_mvm_mac_ctxt_add() might read directly from the device
2121 * (the system time), so make sure it is available.
2123 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_START_AP
);
2127 mutex_lock(&mvm
->mutex
);
2129 /* Send the beacon template */
2130 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
2135 * Re-calculate the tsf id, as the master-slave relations depend on the
2136 * beacon interval, which was not known when the AP interface was added.
2138 if (vif
->type
== NL80211_IFTYPE_AP
)
2139 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
2141 mvmvif
->ap_assoc_sta_count
= 0;
2143 /* Add the mac context */
2144 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
2148 /* Perform the binding */
2149 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2153 ret
= iwl_mvm_add_mcast_sta(mvm
, vif
);
2157 /* Send the bcast station. At this stage the TBTT and DTIM time events
2158 * are added and applied to the scheduler */
2159 ret
= iwl_mvm_send_add_bcast_sta(mvm
, vif
);
2163 /* must be set before quota calculations */
2164 mvmvif
->ap_ibss_active
= true;
2166 /* power updated needs to be done before quotas */
2167 iwl_mvm_power_update_mac(mvm
);
2169 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
2171 goto out_quota_failed
;
2173 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2174 if (vif
->p2p
&& mvm
->p2p_device_vif
)
2175 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
2177 iwl_mvm_ref(mvm
, IWL_MVM_REF_AP_IBSS
);
2179 iwl_mvm_bt_coex_vif_change(mvm
);
2181 /* we don't support TDLS during DCM */
2182 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2183 iwl_mvm_teardown_tdls_peers(mvm
);
2188 iwl_mvm_power_update_mac(mvm
);
2189 mvmvif
->ap_ibss_active
= false;
2190 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
2192 iwl_mvm_rm_mcast_sta(mvm
, vif
);
2194 iwl_mvm_binding_remove_vif(mvm
, vif
);
2196 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
2198 mutex_unlock(&mvm
->mutex
);
2199 iwl_mvm_unref(mvm
, IWL_MVM_REF_START_AP
);
2203 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw
*hw
,
2204 struct ieee80211_vif
*vif
)
2206 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2207 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2209 iwl_mvm_prepare_mac_removal(mvm
, vif
);
2211 mutex_lock(&mvm
->mutex
);
2213 /* Handle AP stop while in CSA */
2214 if (rcu_access_pointer(mvm
->csa_vif
) == vif
) {
2215 iwl_mvm_remove_time_event(mvm
, mvmvif
,
2216 &mvmvif
->time_event_data
);
2217 RCU_INIT_POINTER(mvm
->csa_vif
, NULL
);
2218 mvmvif
->csa_countdown
= false;
2221 if (rcu_access_pointer(mvm
->csa_tx_blocked_vif
) == vif
) {
2222 RCU_INIT_POINTER(mvm
->csa_tx_blocked_vif
, NULL
);
2223 mvm
->csa_tx_block_bcn_timeout
= 0;
2226 mvmvif
->ap_ibss_active
= false;
2227 mvm
->ap_last_beacon_gp2
= 0;
2229 iwl_mvm_bt_coex_vif_change(mvm
);
2231 iwl_mvm_unref(mvm
, IWL_MVM_REF_AP_IBSS
);
2233 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2234 if (vif
->p2p
&& mvm
->p2p_device_vif
)
2235 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
2237 iwl_mvm_update_quotas(mvm
, false, NULL
);
2240 * This is not very nice, but the simplest:
2241 * For older FWs removing the mcast sta before the bcast station may
2242 * cause assert 0x2b00.
2243 * This is fixed in later FW (which will stop beaconing when removing
2245 * So make the order of removal depend on the TLV
2247 if (!fw_has_api(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_API_STA_TYPE
))
2248 iwl_mvm_rm_mcast_sta(mvm
, vif
);
2249 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
2250 if (fw_has_api(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_API_STA_TYPE
))
2251 iwl_mvm_rm_mcast_sta(mvm
, vif
);
2252 iwl_mvm_binding_remove_vif(mvm
, vif
);
2254 iwl_mvm_power_update_mac(mvm
);
2256 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
2258 mutex_unlock(&mvm
->mutex
);
2262 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm
*mvm
,
2263 struct ieee80211_vif
*vif
,
2264 struct ieee80211_bss_conf
*bss_conf
,
2267 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2269 /* Changes will be applied when the AP/IBSS is started */
2270 if (!mvmvif
->ap_ibss_active
)
2273 if (changes
& (BSS_CHANGED_ERP_CTS_PROT
| BSS_CHANGED_HT
|
2274 BSS_CHANGED_BANDWIDTH
| BSS_CHANGED_QOS
) &&
2275 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
))
2276 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
2278 /* Need to send a new beacon template to the FW */
2279 if (changes
& BSS_CHANGED_BEACON
&&
2280 iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
2281 IWL_WARN(mvm
, "Failed updating beacon data\n");
2283 if (changes
& BSS_CHANGED_TXPOWER
) {
2284 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
2286 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
2290 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
2291 struct ieee80211_vif
*vif
,
2292 struct ieee80211_bss_conf
*bss_conf
,
2295 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2298 * iwl_mvm_bss_info_changed_station() might call
2299 * iwl_mvm_protect_session(), which reads directly from
2300 * the device (the system time), so make sure it is available.
2302 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_BSS_CHANGED
))
2305 mutex_lock(&mvm
->mutex
);
2307 if (changes
& BSS_CHANGED_IDLE
&& !bss_conf
->idle
)
2308 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_SCHED
, true);
2310 switch (vif
->type
) {
2311 case NL80211_IFTYPE_STATION
:
2312 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
2314 case NL80211_IFTYPE_AP
:
2315 case NL80211_IFTYPE_ADHOC
:
2316 iwl_mvm_bss_info_changed_ap_ibss(mvm
, vif
, bss_conf
, changes
);
2318 case NL80211_IFTYPE_MONITOR
:
2319 if (changes
& BSS_CHANGED_MU_GROUPS
)
2320 iwl_mvm_update_mu_groups(mvm
, vif
);
2323 /* shouldn't happen */
2327 mutex_unlock(&mvm
->mutex
);
2328 iwl_mvm_unref(mvm
, IWL_MVM_REF_BSS_CHANGED
);
2331 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
2332 struct ieee80211_vif
*vif
,
2333 struct ieee80211_scan_request
*hw_req
)
2335 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2338 if (hw_req
->req
.n_channels
== 0 ||
2339 hw_req
->req
.n_channels
> mvm
->fw
->ucode_capa
.n_scan_channels
)
2342 mutex_lock(&mvm
->mutex
);
2343 ret
= iwl_mvm_reg_scan_start(mvm
, vif
, &hw_req
->req
, &hw_req
->ies
);
2344 mutex_unlock(&mvm
->mutex
);
2349 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
2350 struct ieee80211_vif
*vif
)
2352 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2354 mutex_lock(&mvm
->mutex
);
2356 /* Due to a race condition, it's possible that mac80211 asks
2357 * us to stop a hw_scan when it's already stopped. This can
2358 * happen, for instance, if we stopped the scan ourselves,
2359 * called ieee80211_scan_completed() and the userspace called
2360 * cancel scan scan before ieee80211_scan_work() could run.
2361 * To handle that, simply return if the scan is not running.
2363 if (mvm
->scan_status
& IWL_MVM_SCAN_REGULAR
)
2364 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_REGULAR
, true);
2366 mutex_unlock(&mvm
->mutex
);
2370 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
2371 struct ieee80211_sta
*sta
, u16 tids
,
2373 enum ieee80211_frame_release_type reason
,
2376 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2378 /* Called when we need to transmit (a) frame(s) from mac80211 */
2380 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2381 tids
, more_data
, false);
2385 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw
*hw
,
2386 struct ieee80211_sta
*sta
, u16 tids
,
2388 enum ieee80211_frame_release_type reason
,
2391 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2393 /* Called when we need to transmit (a) frame(s) from agg or dqa queue */
2395 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2396 tids
, more_data
, true);
2399 static void __iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
2400 enum sta_notify_cmd cmd
,
2401 struct ieee80211_sta
*sta
)
2403 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2404 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2405 unsigned long txqs
= 0, tids
= 0;
2408 spin_lock_bh(&mvmsta
->lock
);
2409 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
2410 struct iwl_mvm_tid_data
*tid_data
= &mvmsta
->tid_data
[tid
];
2412 if (!iwl_mvm_is_dqa_supported(mvm
) &&
2413 tid_data
->state
!= IWL_AGG_ON
&&
2414 tid_data
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
2417 if (tid_data
->txq_id
== IWL_MVM_INVALID_QUEUE
)
2420 __set_bit(tid_data
->txq_id
, &txqs
);
2422 if (iwl_mvm_tid_queued(mvm
, tid_data
) == 0)
2425 __set_bit(tid
, &tids
);
2429 case STA_NOTIFY_SLEEP
:
2430 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
2431 ieee80211_sta_block_awake(hw
, sta
, true);
2433 for_each_set_bit(tid
, &tids
, IWL_MAX_TID_COUNT
)
2434 ieee80211_sta_set_buffered(sta
, tid
, true);
2437 iwl_trans_freeze_txq_timer(mvm
->trans
, txqs
, true);
2439 * The fw updates the STA to be asleep. Tx packets on the Tx
2440 * queues to this station will not be transmitted. The fw will
2441 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2444 case STA_NOTIFY_AWAKE
:
2445 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_INVALID_STA
))
2449 iwl_trans_freeze_txq_timer(mvm
->trans
, txqs
, false);
2450 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
2455 spin_unlock_bh(&mvmsta
->lock
);
2458 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
2459 struct ieee80211_vif
*vif
,
2460 enum sta_notify_cmd cmd
,
2461 struct ieee80211_sta
*sta
)
2463 __iwl_mvm_mac_sta_notify(hw
, cmd
, sta
);
2466 void iwl_mvm_sta_pm_notif(struct iwl_mvm
*mvm
, struct iwl_rx_cmd_buffer
*rxb
)
2468 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
2469 struct iwl_mvm_pm_state_notification
*notif
= (void *)pkt
->data
;
2470 struct ieee80211_sta
*sta
;
2471 struct iwl_mvm_sta
*mvmsta
;
2472 bool sleeping
= (notif
->type
!= IWL_MVM_PM_EVENT_AWAKE
);
2474 if (WARN_ON(notif
->sta_id
>= ARRAY_SIZE(mvm
->fw_id_to_mac_id
)))
2478 sta
= rcu_dereference(mvm
->fw_id_to_mac_id
[notif
->sta_id
]);
2479 if (WARN_ON(IS_ERR_OR_NULL(sta
))) {
2484 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2487 mvmsta
->vif
->type
!= NL80211_IFTYPE_AP
) {
2492 if (mvmsta
->sleeping
!= sleeping
) {
2493 mvmsta
->sleeping
= sleeping
;
2494 __iwl_mvm_mac_sta_notify(mvm
->hw
,
2495 sleeping
? STA_NOTIFY_SLEEP
: STA_NOTIFY_AWAKE
,
2497 ieee80211_sta_ps_transition(sta
, sleeping
);
2501 switch (notif
->type
) {
2502 case IWL_MVM_PM_EVENT_AWAKE
:
2503 case IWL_MVM_PM_EVENT_ASLEEP
:
2505 case IWL_MVM_PM_EVENT_UAPSD
:
2506 ieee80211_sta_uapsd_trigger(sta
, IEEE80211_NUM_TIDS
);
2508 case IWL_MVM_PM_EVENT_PS_POLL
:
2509 ieee80211_sta_pspoll(sta
);
2519 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw
*hw
,
2520 struct ieee80211_vif
*vif
,
2521 struct ieee80211_sta
*sta
)
2523 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2524 struct iwl_mvm_sta
*mvm_sta
= iwl_mvm_sta_from_mac80211(sta
);
2527 * This is called before mac80211 does RCU synchronisation,
2528 * so here we already invalidate our internal RCU-protected
2529 * station pointer. The rest of the code will thus no longer
2530 * be able to find the station this way, and we don't rely
2531 * on further RCU synchronisation after the sta_state()
2532 * callback deleted the station.
2534 mutex_lock(&mvm
->mutex
);
2535 if (sta
== rcu_access_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
]))
2536 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
],
2539 mutex_unlock(&mvm
->mutex
);
2542 static void iwl_mvm_check_uapsd(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
2545 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT
))
2548 if (vif
->p2p
&& !iwl_mvm_is_p2p_scm_uapsd_supported(mvm
)) {
2549 vif
->driver_flags
&= ~IEEE80211_VIF_SUPPORTS_UAPSD
;
2554 (iwlwifi_mod_params
.uapsd_disable
& IWL_DISABLE_UAPSD_BSS
)) {
2555 vif
->driver_flags
&= ~IEEE80211_VIF_SUPPORTS_UAPSD
;
2559 vif
->driver_flags
|= IEEE80211_VIF_SUPPORTS_UAPSD
;
2563 iwl_mvm_tdls_check_trigger(struct iwl_mvm
*mvm
,
2564 struct ieee80211_vif
*vif
, u8
*peer_addr
,
2565 enum nl80211_tdls_operation action
)
2567 struct iwl_fw_dbg_trigger_tlv
*trig
;
2568 struct iwl_fw_dbg_trigger_tdls
*tdls_trig
;
2570 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_TDLS
))
2573 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_TDLS
);
2574 tdls_trig
= (void *)trig
->data
;
2575 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
2578 if (!(tdls_trig
->action_bitmap
& BIT(action
)))
2581 if (tdls_trig
->peer_mode
&&
2582 memcmp(tdls_trig
->peer
, peer_addr
, ETH_ALEN
) != 0)
2585 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
2586 "TDLS event occurred, peer %pM, action %d",
2590 static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm
*mvm
,
2591 struct iwl_mvm_sta
*mvm_sta
)
2593 struct iwl_mvm_tid_data
*tid_data
;
2594 struct sk_buff
*skb
;
2597 spin_lock_bh(&mvm_sta
->lock
);
2598 for (i
= 0; i
<= IWL_MAX_TID_COUNT
; i
++) {
2599 tid_data
= &mvm_sta
->tid_data
[i
];
2601 while ((skb
= __skb_dequeue(&tid_data
->deferred_tx_frames
))) {
2602 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
2605 * The first deferred frame should've stopped the MAC
2606 * queues, so we should never get a second deferred
2607 * frame for the RA/TID.
2609 iwl_mvm_start_mac_queues(mvm
, info
->hw_queue
);
2610 ieee80211_free_txskb(mvm
->hw
, skb
);
2613 spin_unlock_bh(&mvm_sta
->lock
);
2616 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
2617 struct ieee80211_vif
*vif
,
2618 struct ieee80211_sta
*sta
,
2619 enum ieee80211_sta_state old_state
,
2620 enum ieee80211_sta_state new_state
)
2622 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2623 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2624 struct iwl_mvm_sta
*mvm_sta
= iwl_mvm_sta_from_mac80211(sta
);
2627 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
2628 sta
->addr
, old_state
, new_state
);
2630 /* this would be a mac80211 bug ... but don't crash */
2631 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
2634 /* if a STA is being removed, reuse its ID */
2635 flush_work(&mvm
->sta_drained_wk
);
2638 * If we are in a STA removal flow and in DQA mode:
2640 * This is after the sync_rcu part, so the queues have already been
2641 * flushed. No more TXs on their way in mac80211's path, and no more in
2643 * Also, we won't be getting any new TX frames for this station.
2644 * What we might have are deferred TX frames that need to be taken care
2647 * Drop any still-queued deferred-frame before removing the STA, and
2648 * make sure the worker is no longer handling frames for this STA.
2650 if (old_state
== IEEE80211_STA_NONE
&&
2651 new_state
== IEEE80211_STA_NOTEXIST
&&
2652 iwl_mvm_is_dqa_supported(mvm
)) {
2653 iwl_mvm_purge_deferred_tx_frames(mvm
, mvm_sta
);
2654 flush_work(&mvm
->add_stream_wk
);
2657 * No need to make sure deferred TX indication is off since the
2658 * worker will already remove it if it was on
2662 mutex_lock(&mvm
->mutex
);
2663 /* track whether or not the station is associated */
2664 mvm_sta
->associated
= new_state
>= IEEE80211_STA_ASSOC
;
2666 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2667 new_state
== IEEE80211_STA_NONE
) {
2669 * Firmware bug - it'll crash if the beacon interval is less
2670 * than 16. We can't avoid connecting at all, so refuse the
2671 * station state change, this will cause mac80211 to abandon
2672 * attempts to connect to this AP, and eventually wpa_s will
2673 * blacklist the AP...
2675 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2676 vif
->bss_conf
.beacon_int
< 16) {
2678 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2679 sta
->addr
, vif
->bss_conf
.beacon_int
);
2686 iwl_mvm_tdls_sta_count(mvm
, NULL
) ==
2687 IWL_MVM_TDLS_STA_COUNT
||
2688 iwl_mvm_phy_ctx_count(mvm
) > 1)) {
2689 IWL_DEBUG_MAC80211(mvm
, "refusing TDLS sta\n");
2694 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
2695 if (sta
->tdls
&& ret
== 0) {
2696 iwl_mvm_recalc_tdls_state(mvm
, vif
, true);
2697 iwl_mvm_tdls_check_trigger(mvm
, vif
, sta
->addr
,
2698 NL80211_TDLS_SETUP
);
2700 } else if (old_state
== IEEE80211_STA_NONE
&&
2701 new_state
== IEEE80211_STA_AUTH
) {
2703 * EBS may be disabled due to previous failures reported by FW.
2704 * Reset EBS status here assuming environment has been changed.
2706 mvm
->last_ebs_successful
= true;
2707 iwl_mvm_check_uapsd(mvm
, vif
, sta
->addr
);
2709 } else if (old_state
== IEEE80211_STA_AUTH
&&
2710 new_state
== IEEE80211_STA_ASSOC
) {
2711 if (vif
->type
== NL80211_IFTYPE_AP
) {
2712 mvmvif
->ap_assoc_sta_count
++;
2713 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2716 iwl_mvm_rs_rate_init(mvm
, sta
, mvmvif
->phy_ctxt
->channel
->band
,
2718 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
2719 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2720 new_state
== IEEE80211_STA_AUTHORIZED
) {
2722 /* we don't support TDLS during DCM */
2723 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2724 iwl_mvm_teardown_tdls_peers(mvm
);
2727 iwl_mvm_tdls_check_trigger(mvm
, vif
, sta
->addr
,
2728 NL80211_TDLS_ENABLE_LINK
);
2730 /* enable beacon filtering */
2731 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
2733 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
2734 new_state
== IEEE80211_STA_ASSOC
) {
2735 /* disable beacon filtering */
2736 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
, 0));
2738 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2739 new_state
== IEEE80211_STA_AUTH
) {
2740 if (vif
->type
== NL80211_IFTYPE_AP
) {
2741 mvmvif
->ap_assoc_sta_count
--;
2742 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2745 } else if (old_state
== IEEE80211_STA_AUTH
&&
2746 new_state
== IEEE80211_STA_NONE
) {
2748 } else if (old_state
== IEEE80211_STA_NONE
&&
2749 new_state
== IEEE80211_STA_NOTEXIST
) {
2750 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
2752 iwl_mvm_recalc_tdls_state(mvm
, vif
, false);
2753 iwl_mvm_tdls_check_trigger(mvm
, vif
, sta
->addr
,
2754 NL80211_TDLS_DISABLE_LINK
);
2760 mutex_unlock(&mvm
->mutex
);
2762 if (sta
->tdls
&& ret
== 0) {
2763 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2764 new_state
== IEEE80211_STA_NONE
)
2765 ieee80211_reserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2766 else if (old_state
== IEEE80211_STA_NONE
&&
2767 new_state
== IEEE80211_STA_NOTEXIST
)
2768 ieee80211_unreserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2774 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
2776 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2778 mvm
->rts_threshold
= value
;
2783 static void iwl_mvm_sta_rc_update(struct ieee80211_hw
*hw
,
2784 struct ieee80211_vif
*vif
,
2785 struct ieee80211_sta
*sta
, u32 changed
)
2787 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2789 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2790 changed
& IEEE80211_RC_NSS_CHANGED
)
2791 iwl_mvm_sf_update(mvm
, vif
, false);
2794 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
2795 struct ieee80211_vif
*vif
, u16 ac
,
2796 const struct ieee80211_tx_queue_params
*params
)
2798 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2799 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2801 mvmvif
->queue_params
[ac
] = *params
;
2804 * No need to update right away, we'll get BSS_CHANGED_QOS
2805 * The exception is P2P_DEVICE interface which needs immediate update.
2807 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
2810 mutex_lock(&mvm
->mutex
);
2811 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2812 mutex_unlock(&mvm
->mutex
);
2818 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
2819 struct ieee80211_vif
*vif
)
2821 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2822 u32 duration
= IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
;
2823 u32 min_duration
= IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
;
2825 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
2829 * iwl_mvm_protect_session() reads directly from the device
2830 * (the system time), so make sure it is available.
2832 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PREPARE_TX
))
2835 mutex_lock(&mvm
->mutex
);
2836 /* Try really hard to protect the session and hear a beacon */
2837 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
, 500, false);
2838 mutex_unlock(&mvm
->mutex
);
2840 iwl_mvm_unref(mvm
, IWL_MVM_REF_PREPARE_TX
);
2843 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw
*hw
,
2844 struct ieee80211_vif
*vif
,
2845 struct cfg80211_sched_scan_request
*req
,
2846 struct ieee80211_scan_ies
*ies
)
2848 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2852 mutex_lock(&mvm
->mutex
);
2854 if (!vif
->bss_conf
.idle
) {
2859 ret
= iwl_mvm_sched_scan_start(mvm
, vif
, req
, ies
, IWL_MVM_SCAN_SCHED
);
2862 mutex_unlock(&mvm
->mutex
);
2866 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw
*hw
,
2867 struct ieee80211_vif
*vif
)
2869 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2872 mutex_lock(&mvm
->mutex
);
2874 /* Due to a race condition, it's possible that mac80211 asks
2875 * us to stop a sched_scan when it's already stopped. This
2876 * can happen, for instance, if we stopped the scan ourselves,
2877 * called ieee80211_sched_scan_stopped() and the userspace called
2878 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2879 * could run. To handle this, simply return if the scan is
2882 if (!(mvm
->scan_status
& IWL_MVM_SCAN_SCHED
)) {
2883 mutex_unlock(&mvm
->mutex
);
2887 ret
= iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_SCHED
, false);
2888 mutex_unlock(&mvm
->mutex
);
2889 iwl_mvm_wait_for_async_handlers(mvm
);
2894 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
2895 enum set_key_cmd cmd
,
2896 struct ieee80211_vif
*vif
,
2897 struct ieee80211_sta
*sta
,
2898 struct ieee80211_key_conf
*key
)
2900 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2901 struct iwl_mvm_sta
*mvmsta
;
2902 struct iwl_mvm_key_pn
*ptk_pn
;
2903 int keyidx
= key
->keyidx
;
2907 if (iwlwifi_mod_params
.swcrypto
) {
2908 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
2912 switch (key
->cipher
) {
2913 case WLAN_CIPHER_SUITE_TKIP
:
2914 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
2915 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2917 case WLAN_CIPHER_SUITE_CCMP
:
2918 case WLAN_CIPHER_SUITE_GCMP
:
2919 case WLAN_CIPHER_SUITE_GCMP_256
:
2920 if (!iwl_mvm_has_new_tx_api(mvm
))
2921 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2923 case WLAN_CIPHER_SUITE_AES_CMAC
:
2924 case WLAN_CIPHER_SUITE_BIP_GMAC_128
:
2925 case WLAN_CIPHER_SUITE_BIP_GMAC_256
:
2926 WARN_ON_ONCE(!ieee80211_hw_check(hw
, MFP_CAPABLE
));
2928 case WLAN_CIPHER_SUITE_WEP40
:
2929 case WLAN_CIPHER_SUITE_WEP104
:
2930 /* For non-client mode, only use WEP keys for TX as we probably
2931 * don't have a station yet anyway and would then have to keep
2932 * track of the keys, linking them to each of the clients/peers
2933 * as they appear. For now, don't do that, for performance WEP
2934 * offload doesn't really matter much, but we need it for some
2935 * other offload features in client mode.
2937 if (vif
->type
!= NL80211_IFTYPE_STATION
)
2941 /* currently FW supports only one optional cipher scheme */
2942 if (hw
->n_cipher_schemes
&&
2943 hw
->cipher_schemes
->cipher
== key
->cipher
)
2944 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2949 mutex_lock(&mvm
->mutex
);
2953 if ((vif
->type
== NL80211_IFTYPE_ADHOC
||
2954 vif
->type
== NL80211_IFTYPE_AP
) && !sta
) {
2956 * GTK on AP interface is a TX-only key, return 0;
2957 * on IBSS they're per-station and because we're lazy
2958 * we don't support them for RX, so do the same.
2959 * CMAC/GMAC in AP/IBSS modes must be done in software.
2961 if (key
->cipher
== WLAN_CIPHER_SUITE_AES_CMAC
||
2962 key
->cipher
== WLAN_CIPHER_SUITE_BIP_GMAC_128
||
2963 key
->cipher
== WLAN_CIPHER_SUITE_BIP_GMAC_256
)
2968 if (key
->cipher
!= WLAN_CIPHER_SUITE_GCMP
&&
2969 key
->cipher
!= WLAN_CIPHER_SUITE_GCMP_256
&&
2970 !iwl_mvm_has_new_tx_api(mvm
)) {
2971 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2976 /* During FW restart, in order to restore the state as it was,
2977 * don't try to reprogram keys we previously failed for.
2979 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2980 key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2981 IWL_DEBUG_MAC80211(mvm
,
2982 "skip invalid idx key programming during restart\n");
2987 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2988 sta
&& iwl_mvm_has_new_rx_api(mvm
) &&
2989 key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
&&
2990 (key
->cipher
== WLAN_CIPHER_SUITE_CCMP
||
2991 key
->cipher
== WLAN_CIPHER_SUITE_GCMP
||
2992 key
->cipher
== WLAN_CIPHER_SUITE_GCMP_256
)) {
2993 struct ieee80211_key_seq seq
;
2996 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2997 WARN_ON(rcu_access_pointer(mvmsta
->ptk_pn
[keyidx
]));
2998 ptk_pn
= kzalloc(sizeof(*ptk_pn
) +
2999 mvm
->trans
->num_rx_queues
*
3000 sizeof(ptk_pn
->q
[0]),
3007 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
3008 ieee80211_get_key_rx_seq(key
, tid
, &seq
);
3009 for (q
= 0; q
< mvm
->trans
->num_rx_queues
; q
++)
3010 memcpy(ptk_pn
->q
[q
].pn
[tid
],
3012 IEEE80211_CCMP_PN_LEN
);
3015 rcu_assign_pointer(mvmsta
->ptk_pn
[keyidx
], ptk_pn
);
3018 /* in HW restart reuse the index, otherwise request a new one */
3019 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
3020 key_offset
= key
->hw_key_idx
;
3022 key_offset
= STA_KEY_IDX_INVALID
;
3024 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
3025 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, key_offset
);
3027 IWL_WARN(mvm
, "set key failed\n");
3029 * can't add key for RX, but we don't need it
3030 * in the device for TX so still return 0
3032 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
3038 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
3043 if (sta
&& iwl_mvm_has_new_rx_api(mvm
) &&
3044 key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
&&
3045 (key
->cipher
== WLAN_CIPHER_SUITE_CCMP
||
3046 key
->cipher
== WLAN_CIPHER_SUITE_GCMP
||
3047 key
->cipher
== WLAN_CIPHER_SUITE_GCMP_256
)) {
3048 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
3049 ptk_pn
= rcu_dereference_protected(
3050 mvmsta
->ptk_pn
[keyidx
],
3051 lockdep_is_held(&mvm
->mutex
));
3052 RCU_INIT_POINTER(mvmsta
->ptk_pn
[keyidx
], NULL
);
3054 kfree_rcu(ptk_pn
, rcu_head
);
3057 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
3058 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
3064 mutex_unlock(&mvm
->mutex
);
3068 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
3069 struct ieee80211_vif
*vif
,
3070 struct ieee80211_key_conf
*keyconf
,
3071 struct ieee80211_sta
*sta
,
3072 u32 iv32
, u16
*phase1key
)
3074 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3076 if (keyconf
->hw_key_idx
== STA_KEY_IDX_INVALID
)
3079 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
3083 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data
*notif_wait
,
3084 struct iwl_rx_packet
*pkt
, void *data
)
3086 struct iwl_mvm
*mvm
=
3087 container_of(notif_wait
, struct iwl_mvm
, notif_wait
);
3088 struct iwl_hs20_roc_res
*resp
;
3089 int resp_len
= iwl_rx_packet_payload_len(pkt
);
3090 struct iwl_mvm_time_event_data
*te_data
= data
;
3092 if (WARN_ON(pkt
->hdr
.cmd
!= HOT_SPOT_CMD
))
3095 if (WARN_ON_ONCE(resp_len
!= sizeof(*resp
))) {
3096 IWL_ERR(mvm
, "Invalid HOT_SPOT_CMD response\n");
3100 resp
= (void *)pkt
->data
;
3103 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
3104 resp
->status
, resp
->event_unique_id
);
3106 te_data
->uid
= le32_to_cpu(resp
->event_unique_id
);
3107 IWL_DEBUG_TE(mvm
, "TIME_EVENT_CMD response - UID = 0x%x\n",
3110 spin_lock_bh(&mvm
->time_event_lock
);
3111 list_add_tail(&te_data
->list
, &mvm
->aux_roc_te_list
);
3112 spin_unlock_bh(&mvm
->time_event_lock
);
3117 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
3118 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
3119 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
3120 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
3121 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
3122 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm
*mvm
,
3123 struct ieee80211_channel
*channel
,
3124 struct ieee80211_vif
*vif
,
3127 int res
, time_reg
= DEVICE_SYSTEM_TIME_REG
;
3128 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3129 struct iwl_mvm_time_event_data
*te_data
= &mvmvif
->hs_time_event_data
;
3130 static const u16 time_event_response
[] = { HOT_SPOT_CMD
};
3131 struct iwl_notification_wait wait_time_event
;
3132 u32 dtim_interval
= vif
->bss_conf
.dtim_period
*
3133 vif
->bss_conf
.beacon_int
;
3135 struct iwl_hs20_roc_req aux_roc_req
= {
3136 .action
= cpu_to_le32(FW_CTXT_ACTION_ADD
),
3138 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX
, 0)),
3139 .sta_id_and_color
= cpu_to_le32(mvm
->aux_sta
.sta_id
),
3140 /* Set the channel info data */
3141 .channel_info
.band
= (channel
->band
== NL80211_BAND_2GHZ
) ?
3142 PHY_BAND_24
: PHY_BAND_5
,
3143 .channel_info
.channel
= channel
->hw_value
,
3144 .channel_info
.width
= PHY_VHT_CHANNEL_MODE20
,
3145 /* Set the time and duration */
3146 .apply_time
= cpu_to_le32(iwl_read_prph(mvm
->trans
, time_reg
)),
3149 delay
= AUX_ROC_MIN_DELAY
;
3150 req_dur
= MSEC_TO_TU(duration
);
3153 * If we are associated we want the delay time to be at least one
3154 * dtim interval so that the FW can wait until after the DTIM and
3155 * then start the time event, this will potentially allow us to
3156 * remain off-channel for the max duration.
3157 * Since we want to use almost a whole dtim interval we would also
3158 * like the delay to be for 2-3 dtim intervals, in case there are
3159 * other time events with higher priority.
3161 if (vif
->bss_conf
.assoc
) {
3162 delay
= min_t(u32
, dtim_interval
* 3, AUX_ROC_MAX_DELAY
);
3163 /* We cannot remain off-channel longer than the DTIM interval */
3164 if (dtim_interval
<= req_dur
) {
3165 req_dur
= dtim_interval
- AUX_ROC_SAFETY_BUFFER
;
3166 if (req_dur
<= AUX_ROC_MIN_DURATION
)
3167 req_dur
= dtim_interval
-
3168 AUX_ROC_MIN_SAFETY_BUFFER
;
3172 aux_roc_req
.duration
= cpu_to_le32(req_dur
);
3173 aux_roc_req
.apply_time_max_delay
= cpu_to_le32(delay
);
3176 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
3177 channel
->hw_value
, req_dur
, duration
, delay
,
3179 /* Set the node address */
3180 memcpy(aux_roc_req
.node_addr
, vif
->addr
, ETH_ALEN
);
3182 lockdep_assert_held(&mvm
->mutex
);
3184 spin_lock_bh(&mvm
->time_event_lock
);
3186 if (WARN_ON(te_data
->id
== HOT_SPOT_CMD
)) {
3187 spin_unlock_bh(&mvm
->time_event_lock
);
3192 te_data
->duration
= duration
;
3193 te_data
->id
= HOT_SPOT_CMD
;
3195 spin_unlock_bh(&mvm
->time_event_lock
);
3198 * Use a notification wait, which really just processes the
3199 * command response and doesn't wait for anything, in order
3200 * to be able to process the response and get the UID inside
3201 * the RX path. Using CMD_WANT_SKB doesn't work because it
3202 * stores the buffer and then wakes up this thread, by which
3203 * time another notification (that the time event started)
3204 * might already be processed unsuccessfully.
3206 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_time_event
,
3207 time_event_response
,
3208 ARRAY_SIZE(time_event_response
),
3209 iwl_mvm_rx_aux_roc
, te_data
);
3211 res
= iwl_mvm_send_cmd_pdu(mvm
, HOT_SPOT_CMD
, 0, sizeof(aux_roc_req
),
3215 IWL_ERR(mvm
, "Couldn't send HOT_SPOT_CMD: %d\n", res
);
3216 iwl_remove_notification(&mvm
->notif_wait
, &wait_time_event
);
3220 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3221 res
= iwl_wait_notification(&mvm
->notif_wait
, &wait_time_event
, 1);
3222 /* should never fail */
3227 spin_lock_bh(&mvm
->time_event_lock
);
3228 iwl_mvm_te_clear_data(mvm
, te_data
);
3229 spin_unlock_bh(&mvm
->time_event_lock
);
3235 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
3236 struct ieee80211_vif
*vif
,
3237 struct ieee80211_channel
*channel
,
3239 enum ieee80211_roc_type type
)
3241 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3242 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3243 struct cfg80211_chan_def chandef
;
3244 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
3247 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
3250 flush_work(&mvm
->roc_done_wk
);
3252 mutex_lock(&mvm
->mutex
);
3254 switch (vif
->type
) {
3255 case NL80211_IFTYPE_STATION
:
3256 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
3257 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT
)) {
3258 /* Use aux roc framework (HS20) */
3259 ret
= iwl_mvm_send_aux_roc_cmd(mvm
, channel
,
3263 IWL_ERR(mvm
, "hotspot not supported\n");
3266 case NL80211_IFTYPE_P2P_DEVICE
:
3270 IWL_ERR(mvm
, "vif isn't P2P_DEVICE: %d\n", vif
->type
);
3275 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
3276 phy_ctxt
= &mvm
->phy_ctxts
[i
];
3277 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
3280 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
3282 * Unbind the P2P_DEVICE from the current PHY context,
3283 * and if the PHY context is not used remove it.
3285 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
3286 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
3289 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
3291 /* Bind the P2P_DEVICE to the current PHY Context */
3292 mvmvif
->phy_ctxt
= phy_ctxt
;
3294 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3295 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
3298 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
3299 goto schedule_time_event
;
3303 /* Need to update the PHY context only if the ROC channel changed */
3304 if (channel
== mvmvif
->phy_ctxt
->channel
)
3305 goto schedule_time_event
;
3307 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
3310 * Change the PHY context configuration as it is currently referenced
3311 * only by the P2P Device MAC
3313 if (mvmvif
->phy_ctxt
->ref
== 1) {
3314 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
3320 * The PHY context is shared with other MACs. Need to remove the
3321 * P2P Device from the binding, allocate an new PHY context and
3322 * create a new binding
3324 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
3330 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
3333 IWL_ERR(mvm
, "Failed to change PHY context\n");
3337 /* Unbind the P2P_DEVICE from the current PHY context */
3338 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
3339 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
3342 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
3344 /* Bind the P2P_DEVICE to the new allocated PHY context */
3345 mvmvif
->phy_ctxt
= phy_ctxt
;
3347 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3348 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
3351 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
3354 schedule_time_event
:
3355 /* Schedule the time events */
3356 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
3359 mutex_unlock(&mvm
->mutex
);
3360 IWL_DEBUG_MAC80211(mvm
, "leave\n");
3364 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
3366 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3368 IWL_DEBUG_MAC80211(mvm
, "enter\n");
3370 mutex_lock(&mvm
->mutex
);
3371 iwl_mvm_stop_roc(mvm
);
3372 mutex_unlock(&mvm
->mutex
);
3374 IWL_DEBUG_MAC80211(mvm
, "leave\n");
3378 static int __iwl_mvm_add_chanctx(struct iwl_mvm
*mvm
,
3379 struct ieee80211_chanctx_conf
*ctx
)
3381 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3382 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
3385 lockdep_assert_held(&mvm
->mutex
);
3387 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
3389 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
3395 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
3396 ctx
->rx_chains_static
,
3397 ctx
->rx_chains_dynamic
);
3399 IWL_ERR(mvm
, "Failed to add PHY context\n");
3403 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
3404 *phy_ctxt_id
= phy_ctxt
->id
;
3409 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
3410 struct ieee80211_chanctx_conf
*ctx
)
3412 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3415 mutex_lock(&mvm
->mutex
);
3416 ret
= __iwl_mvm_add_chanctx(mvm
, ctx
);
3417 mutex_unlock(&mvm
->mutex
);
3422 static void __iwl_mvm_remove_chanctx(struct iwl_mvm
*mvm
,
3423 struct ieee80211_chanctx_conf
*ctx
)
3425 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3426 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3428 lockdep_assert_held(&mvm
->mutex
);
3430 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
3433 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
3434 struct ieee80211_chanctx_conf
*ctx
)
3436 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3438 mutex_lock(&mvm
->mutex
);
3439 __iwl_mvm_remove_chanctx(mvm
, ctx
);
3440 mutex_unlock(&mvm
->mutex
);
3443 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
3444 struct ieee80211_chanctx_conf
*ctx
,
3447 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3448 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3449 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3451 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
3452 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
3453 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
3454 IEEE80211_CHANCTX_CHANGE_RADAR
|
3455 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH
)),
3456 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3457 phy_ctxt
->ref
, changed
))
3460 mutex_lock(&mvm
->mutex
);
3461 iwl_mvm_bt_coex_vif_change(mvm
);
3462 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
3463 ctx
->rx_chains_static
,
3464 ctx
->rx_chains_dynamic
);
3465 mutex_unlock(&mvm
->mutex
);
3468 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm
*mvm
,
3469 struct ieee80211_vif
*vif
,
3470 struct ieee80211_chanctx_conf
*ctx
,
3471 bool switching_chanctx
)
3473 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3474 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3475 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3478 lockdep_assert_held(&mvm
->mutex
);
3480 mvmvif
->phy_ctxt
= phy_ctxt
;
3482 switch (vif
->type
) {
3483 case NL80211_IFTYPE_AP
:
3484 /* only needed if we're switching chanctx (i.e. during CSA) */
3485 if (switching_chanctx
) {
3486 mvmvif
->ap_ibss_active
= true;
3489 case NL80211_IFTYPE_ADHOC
:
3491 * The AP binding flow is handled as part of the start_ap flow
3492 * (in bss_info_changed), similarly for IBSS.
3496 case NL80211_IFTYPE_STATION
:
3498 case NL80211_IFTYPE_MONITOR
:
3499 /* always disable PS when a monitor interface is active */
3500 mvmvif
->ps_disabled
= true;
3507 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3512 * Power state must be updated before quotas,
3513 * otherwise fw will complain.
3515 iwl_mvm_power_update_mac(mvm
);
3517 /* Setting the quota at this stage is only required for monitor
3518 * interfaces. For the other types, the bss_info changed flow
3519 * will handle quota settings.
3521 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
3522 mvmvif
->monitor_active
= true;
3523 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
3525 goto out_remove_binding
;
3527 ret
= iwl_mvm_add_snif_sta(mvm
, vif
);
3529 goto out_remove_binding
;
3533 /* Handle binding during CSA */
3534 if (vif
->type
== NL80211_IFTYPE_AP
) {
3535 iwl_mvm_update_quotas(mvm
, false, NULL
);
3536 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
3539 if (switching_chanctx
&& vif
->type
== NL80211_IFTYPE_STATION
) {
3540 u32 duration
= 2 * vif
->bss_conf
.beacon_int
;
3542 /* iwl_mvm_protect_session() reads directly from the
3543 * device (the system time), so make sure it is
3546 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PROTECT_CSA
);
3548 goto out_remove_binding
;
3550 /* Protect the session to make sure we hear the first
3551 * beacon on the new channel.
3553 iwl_mvm_protect_session(mvm
, vif
, duration
, duration
,
3554 vif
->bss_conf
.beacon_int
/ 2,
3557 iwl_mvm_unref(mvm
, IWL_MVM_REF_PROTECT_CSA
);
3559 iwl_mvm_update_quotas(mvm
, false, NULL
);
3565 iwl_mvm_binding_remove_vif(mvm
, vif
);
3566 iwl_mvm_power_update_mac(mvm
);
3569 mvmvif
->phy_ctxt
= NULL
;
3572 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
3573 struct ieee80211_vif
*vif
,
3574 struct ieee80211_chanctx_conf
*ctx
)
3576 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3579 mutex_lock(&mvm
->mutex
);
3580 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vif
, ctx
, false);
3581 mutex_unlock(&mvm
->mutex
);
3586 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm
*mvm
,
3587 struct ieee80211_vif
*vif
,
3588 struct ieee80211_chanctx_conf
*ctx
,
3589 bool switching_chanctx
)
3591 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3592 struct ieee80211_vif
*disabled_vif
= NULL
;
3594 lockdep_assert_held(&mvm
->mutex
);
3596 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
3598 switch (vif
->type
) {
3599 case NL80211_IFTYPE_ADHOC
:
3601 case NL80211_IFTYPE_MONITOR
:
3602 mvmvif
->monitor_active
= false;
3603 mvmvif
->ps_disabled
= false;
3604 iwl_mvm_rm_snif_sta(mvm
, vif
);
3606 case NL80211_IFTYPE_AP
:
3607 /* This part is triggered only during CSA */
3608 if (!switching_chanctx
|| !mvmvif
->ap_ibss_active
)
3611 mvmvif
->csa_countdown
= false;
3613 /* Set CS bit on all the stations */
3614 iwl_mvm_modify_all_sta_disable_tx(mvm
, mvmvif
, true);
3616 /* Save blocked iface, the timeout is set on the next beacon */
3617 rcu_assign_pointer(mvm
->csa_tx_blocked_vif
, vif
);
3619 mvmvif
->ap_ibss_active
= false;
3621 case NL80211_IFTYPE_STATION
:
3622 if (!switching_chanctx
)
3627 iwl_mvm_mac_ctxt_changed(mvm
, vif
, true, NULL
);
3633 iwl_mvm_update_quotas(mvm
, false, disabled_vif
);
3634 iwl_mvm_binding_remove_vif(mvm
, vif
);
3637 mvmvif
->phy_ctxt
= NULL
;
3638 iwl_mvm_power_update_mac(mvm
);
3641 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
3642 struct ieee80211_vif
*vif
,
3643 struct ieee80211_chanctx_conf
*ctx
)
3645 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3647 mutex_lock(&mvm
->mutex
);
3648 __iwl_mvm_unassign_vif_chanctx(mvm
, vif
, ctx
, false);
3649 mutex_unlock(&mvm
->mutex
);
3653 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm
*mvm
,
3654 struct ieee80211_vif_chanctx_switch
*vifs
)
3658 mutex_lock(&mvm
->mutex
);
3659 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
3660 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].old_ctx
);
3662 ret
= __iwl_mvm_add_chanctx(mvm
, vifs
[0].new_ctx
);
3664 IWL_ERR(mvm
, "failed to add new_ctx during channel switch\n");
3668 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
3672 "failed to assign new_ctx during channel switch\n");
3676 /* we don't support TDLS during DCM - can be caused by channel switch */
3677 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
3678 iwl_mvm_teardown_tdls_peers(mvm
);
3683 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].new_ctx
);
3686 if (__iwl_mvm_add_chanctx(mvm
, vifs
[0].old_ctx
)) {
3687 IWL_ERR(mvm
, "failed to add old_ctx back after failure.\n");
3691 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3693 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3700 /* things keep failing, better restart the hw */
3701 iwl_mvm_nic_restart(mvm
, false);
3704 mutex_unlock(&mvm
->mutex
);
3710 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm
*mvm
,
3711 struct ieee80211_vif_chanctx_switch
*vifs
)
3715 mutex_lock(&mvm
->mutex
);
3716 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
3718 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
3722 "failed to assign new_ctx during channel switch\n");
3729 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3731 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3738 /* things keep failing, better restart the hw */
3739 iwl_mvm_nic_restart(mvm
, false);
3742 mutex_unlock(&mvm
->mutex
);
3747 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw
*hw
,
3748 struct ieee80211_vif_chanctx_switch
*vifs
,
3750 enum ieee80211_chanctx_switch_mode mode
)
3752 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3755 /* we only support a single-vif right now */
3760 case CHANCTX_SWMODE_SWAP_CONTEXTS
:
3761 ret
= iwl_mvm_switch_vif_chanctx_swap(mvm
, vifs
);
3763 case CHANCTX_SWMODE_REASSIGN_VIF
:
3764 ret
= iwl_mvm_switch_vif_chanctx_reassign(mvm
, vifs
);
3774 static int iwl_mvm_tx_last_beacon(struct ieee80211_hw
*hw
)
3776 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3778 return mvm
->ibss_manager
;
3781 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
3782 struct ieee80211_sta
*sta
,
3785 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3786 struct iwl_mvm_sta
*mvm_sta
= iwl_mvm_sta_from_mac80211(sta
);
3788 if (!mvm_sta
|| !mvm_sta
->vif
) {
3789 IWL_ERR(mvm
, "Station is not associated to a vif\n");
3793 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
3796 #ifdef CONFIG_NL80211_TESTMODE
3797 static const struct nla_policy iwl_mvm_tm_policy
[IWL_MVM_TM_ATTR_MAX
+ 1] = {
3798 [IWL_MVM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
3799 [IWL_MVM_TM_ATTR_NOA_DURATION
] = { .type
= NLA_U32
},
3800 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
] = { .type
= NLA_U32
},
3803 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm
*mvm
,
3804 struct ieee80211_vif
*vif
,
3805 void *data
, int len
)
3807 struct nlattr
*tb
[IWL_MVM_TM_ATTR_MAX
+ 1];
3811 err
= nla_parse(tb
, IWL_MVM_TM_ATTR_MAX
, data
, len
, iwl_mvm_tm_policy
,
3816 if (!tb
[IWL_MVM_TM_ATTR_CMD
])
3819 switch (nla_get_u32(tb
[IWL_MVM_TM_ATTR_CMD
])) {
3820 case IWL_MVM_TM_CMD_SET_NOA
:
3821 if (!vif
|| vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
||
3822 !vif
->bss_conf
.enable_beacon
||
3823 !tb
[IWL_MVM_TM_ATTR_NOA_DURATION
])
3826 noa_duration
= nla_get_u32(tb
[IWL_MVM_TM_ATTR_NOA_DURATION
]);
3827 if (noa_duration
>= vif
->bss_conf
.beacon_int
)
3830 mvm
->noa_duration
= noa_duration
;
3833 return iwl_mvm_update_quotas(mvm
, false, NULL
);
3834 case IWL_MVM_TM_CMD_SET_BEACON_FILTER
:
3835 /* must be associated client vif - ignore authorized */
3836 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
||
3837 !vif
->bss_conf
.assoc
|| !vif
->bss_conf
.dtim_period
||
3838 !tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
])
3841 if (nla_get_u32(tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
]))
3842 return iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
3843 return iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3849 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw
*hw
,
3850 struct ieee80211_vif
*vif
,
3851 void *data
, int len
)
3853 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3856 mutex_lock(&mvm
->mutex
);
3857 err
= __iwl_mvm_mac_testmode_cmd(mvm
, vif
, data
, len
);
3858 mutex_unlock(&mvm
->mutex
);
3864 static void iwl_mvm_channel_switch(struct ieee80211_hw
*hw
,
3865 struct ieee80211_vif
*vif
,
3866 struct ieee80211_channel_switch
*chsw
)
3868 /* By implementing this operation, we prevent mac80211 from
3869 * starting its own channel switch timer, so that we can call
3870 * ieee80211_chswitch_done() ourselves at the right time
3871 * (which is when the absence time event starts).
3874 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw
),
3875 "dummy channel switch op\n");
3878 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw
*hw
,
3879 struct ieee80211_vif
*vif
,
3880 struct ieee80211_channel_switch
*chsw
)
3882 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3883 struct ieee80211_vif
*csa_vif
;
3884 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3888 mutex_lock(&mvm
->mutex
);
3890 mvmvif
->csa_failed
= false;
3892 IWL_DEBUG_MAC80211(mvm
, "pre CSA to freq %d\n",
3893 chsw
->chandef
.center_freq1
);
3895 iwl_fw_dbg_trigger_simple_stop(mvm
, vif
, FW_DBG_TRIGGER_CHANNEL_SWITCH
);
3897 switch (vif
->type
) {
3898 case NL80211_IFTYPE_AP
:
3900 rcu_dereference_protected(mvm
->csa_vif
,
3901 lockdep_is_held(&mvm
->mutex
));
3902 if (WARN_ONCE(csa_vif
&& csa_vif
->csa_active
,
3903 "Another CSA is already in progress")) {
3908 /* we still didn't unblock tx. prevent new CS meanwhile */
3909 if (rcu_dereference_protected(mvm
->csa_tx_blocked_vif
,
3910 lockdep_is_held(&mvm
->mutex
))) {
3915 rcu_assign_pointer(mvm
->csa_vif
, vif
);
3917 if (WARN_ONCE(mvmvif
->csa_countdown
,
3918 "Previous CSA countdown didn't complete")) {
3923 mvmvif
->csa_target_freq
= chsw
->chandef
.chan
->center_freq
;
3926 case NL80211_IFTYPE_STATION
:
3927 if (mvmvif
->lqm_active
)
3928 iwl_mvm_send_lqm_cmd(vif
,
3929 LQM_CMD_OPERATION_STOP_MEASUREMENT
,
3932 /* Schedule the time event to a bit before beacon 1,
3933 * to make sure we're in the new channel when the
3936 apply_time
= chsw
->device_timestamp
+
3937 ((vif
->bss_conf
.beacon_int
* (chsw
->count
- 1) -
3938 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT
) * 1024);
3941 iwl_mvm_csa_client_absent(mvm
, vif
);
3943 iwl_mvm_schedule_csa_period(mvm
, vif
, vif
->bss_conf
.beacon_int
,
3945 if (mvmvif
->bf_data
.bf_enabled
) {
3946 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3956 mvmvif
->ps_disabled
= true;
3958 ret
= iwl_mvm_power_update_ps(mvm
);
3962 /* we won't be on this channel any longer */
3963 iwl_mvm_teardown_tdls_peers(mvm
);
3966 mutex_unlock(&mvm
->mutex
);
3971 static int iwl_mvm_post_channel_switch(struct ieee80211_hw
*hw
,
3972 struct ieee80211_vif
*vif
)
3974 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3975 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3978 mutex_lock(&mvm
->mutex
);
3980 if (mvmvif
->csa_failed
) {
3981 mvmvif
->csa_failed
= false;
3986 if (vif
->type
== NL80211_IFTYPE_STATION
) {
3987 struct iwl_mvm_sta
*mvmsta
;
3989 mvmsta
= iwl_mvm_sta_from_staid_protected(mvm
,
3992 if (WARN_ON(!mvmsta
)) {
3997 iwl_mvm_sta_modify_disable_tx(mvm
, mvmsta
, false);
3999 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
4001 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
4005 iwl_mvm_stop_session_protection(mvm
, vif
);
4008 mvmvif
->ps_disabled
= false;
4010 ret
= iwl_mvm_power_update_ps(mvm
);
4013 mutex_unlock(&mvm
->mutex
);
4018 static void iwl_mvm_mac_flush(struct ieee80211_hw
*hw
,
4019 struct ieee80211_vif
*vif
, u32 queues
, bool drop
)
4021 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
4022 struct iwl_mvm_vif
*mvmvif
;
4023 struct iwl_mvm_sta
*mvmsta
;
4024 struct ieee80211_sta
*sta
;
4028 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
)
4031 /* Make sure we're done with the deferred traffic before flushing */
4032 if (iwl_mvm_is_dqa_supported(mvm
))
4033 flush_work(&mvm
->add_stream_wk
);
4035 mutex_lock(&mvm
->mutex
);
4036 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
4038 /* flush the AP-station and all TDLS peers */
4039 for (i
= 0; i
< ARRAY_SIZE(mvm
->fw_id_to_mac_id
); i
++) {
4040 sta
= rcu_dereference_protected(mvm
->fw_id_to_mac_id
[i
],
4041 lockdep_is_held(&mvm
->mutex
));
4042 if (IS_ERR_OR_NULL(sta
))
4045 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
4046 if (mvmsta
->vif
!= vif
)
4049 /* make sure only TDLS peers or the AP are flushed */
4050 WARN_ON(i
!= mvmvif
->ap_sta_id
&& !sta
->tdls
);
4053 if (iwl_mvm_flush_sta(mvm
, mvmsta
, false, 0))
4054 IWL_ERR(mvm
, "flush request fail\n");
4056 msk
|= mvmsta
->tfd_queue_msk
;
4057 if (iwl_mvm_has_new_tx_api(mvm
))
4058 iwl_mvm_wait_sta_queues_empty(mvm
, mvmsta
);
4062 mutex_unlock(&mvm
->mutex
);
4064 /* this can take a while, and we may need/want other operations
4065 * to succeed while doing this, so do it without the mutex held
4067 if (!drop
&& !iwl_mvm_has_new_tx_api(mvm
))
4068 iwl_trans_wait_tx_queues_empty(mvm
->trans
, msk
);
4071 static int iwl_mvm_mac_get_survey(struct ieee80211_hw
*hw
, int idx
,
4072 struct survey_info
*survey
)
4074 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
4077 memset(survey
, 0, sizeof(*survey
));
4079 /* only support global statistics right now */
4083 if (!fw_has_capa(&mvm
->fw
->ucode_capa
,
4084 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS
))
4087 mutex_lock(&mvm
->mutex
);
4089 if (iwl_mvm_firmware_running(mvm
)) {
4090 ret
= iwl_mvm_request_statistics(mvm
, false);
4095 survey
->filled
= SURVEY_INFO_TIME
|
4096 SURVEY_INFO_TIME_RX
|
4097 SURVEY_INFO_TIME_TX
|
4098 SURVEY_INFO_TIME_SCAN
;
4099 survey
->time
= mvm
->accu_radio_stats
.on_time_rf
+
4100 mvm
->radio_stats
.on_time_rf
;
4101 do_div(survey
->time
, USEC_PER_MSEC
);
4103 survey
->time_rx
= mvm
->accu_radio_stats
.rx_time
+
4104 mvm
->radio_stats
.rx_time
;
4105 do_div(survey
->time_rx
, USEC_PER_MSEC
);
4107 survey
->time_tx
= mvm
->accu_radio_stats
.tx_time
+
4108 mvm
->radio_stats
.tx_time
;
4109 do_div(survey
->time_tx
, USEC_PER_MSEC
);
4111 survey
->time_scan
= mvm
->accu_radio_stats
.on_time_scan
+
4112 mvm
->radio_stats
.on_time_scan
;
4113 do_div(survey
->time_scan
, USEC_PER_MSEC
);
4117 mutex_unlock(&mvm
->mutex
);
4121 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw
*hw
,
4122 struct ieee80211_vif
*vif
,
4123 struct ieee80211_sta
*sta
,
4124 struct station_info
*sinfo
)
4126 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
4127 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
4128 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
4130 if (mvmsta
->avg_energy
) {
4131 sinfo
->signal_avg
= mvmsta
->avg_energy
;
4132 sinfo
->filled
|= BIT(NL80211_STA_INFO_SIGNAL_AVG
);
4135 if (!fw_has_capa(&mvm
->fw
->ucode_capa
,
4136 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS
))
4139 /* if beacon filtering isn't on mac80211 does it anyway */
4140 if (!(vif
->driver_flags
& IEEE80211_VIF_BEACON_FILTER
))
4143 if (!vif
->bss_conf
.assoc
)
4146 mutex_lock(&mvm
->mutex
);
4148 if (mvmvif
->ap_sta_id
!= mvmsta
->sta_id
)
4151 if (iwl_mvm_request_statistics(mvm
, false))
4154 sinfo
->rx_beacon
= mvmvif
->beacon_stats
.num_beacons
+
4155 mvmvif
->beacon_stats
.accu_num_beacons
;
4156 sinfo
->filled
|= BIT(NL80211_STA_INFO_BEACON_RX
);
4157 if (mvmvif
->beacon_stats
.avg_signal
) {
4158 /* firmware only reports a value after RXing a few beacons */
4159 sinfo
->rx_beacon_signal_avg
= mvmvif
->beacon_stats
.avg_signal
;
4160 sinfo
->filled
|= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG
);
4163 mutex_unlock(&mvm
->mutex
);
4166 static void iwl_mvm_event_mlme_callback(struct iwl_mvm
*mvm
,
4167 struct ieee80211_vif
*vif
,
4168 const struct ieee80211_event
*event
)
4170 #define CHECK_MLME_TRIGGER(_cnt, _fmt...) \
4172 if ((trig_mlme->_cnt) && --(trig_mlme->_cnt)) \
4174 iwl_mvm_fw_dbg_collect_trig(mvm, trig, _fmt); \
4177 struct iwl_fw_dbg_trigger_tlv
*trig
;
4178 struct iwl_fw_dbg_trigger_mlme
*trig_mlme
;
4180 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_MLME
))
4183 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_MLME
);
4184 trig_mlme
= (void *)trig
->data
;
4185 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
4188 if (event
->u
.mlme
.data
== ASSOC_EVENT
) {
4189 if (event
->u
.mlme
.status
== MLME_DENIED
)
4190 CHECK_MLME_TRIGGER(stop_assoc_denied
,
4191 "DENIED ASSOC: reason %d",
4192 event
->u
.mlme
.reason
);
4193 else if (event
->u
.mlme
.status
== MLME_TIMEOUT
)
4194 CHECK_MLME_TRIGGER(stop_assoc_timeout
,
4196 } else if (event
->u
.mlme
.data
== AUTH_EVENT
) {
4197 if (event
->u
.mlme
.status
== MLME_DENIED
)
4198 CHECK_MLME_TRIGGER(stop_auth_denied
,
4199 "DENIED AUTH: reason %d",
4200 event
->u
.mlme
.reason
);
4201 else if (event
->u
.mlme
.status
== MLME_TIMEOUT
)
4202 CHECK_MLME_TRIGGER(stop_auth_timeout
,
4204 } else if (event
->u
.mlme
.data
== DEAUTH_RX_EVENT
) {
4205 CHECK_MLME_TRIGGER(stop_rx_deauth
,
4206 "DEAUTH RX %d", event
->u
.mlme
.reason
);
4207 } else if (event
->u
.mlme
.data
== DEAUTH_TX_EVENT
) {
4208 CHECK_MLME_TRIGGER(stop_tx_deauth
,
4209 "DEAUTH TX %d", event
->u
.mlme
.reason
);
4211 #undef CHECK_MLME_TRIGGER
4214 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm
*mvm
,
4215 struct ieee80211_vif
*vif
,
4216 const struct ieee80211_event
*event
)
4218 struct iwl_fw_dbg_trigger_tlv
*trig
;
4219 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
4221 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
4224 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
4225 ba_trig
= (void *)trig
->data
;
4226 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
4229 if (!(le16_to_cpu(ba_trig
->rx_bar
) & BIT(event
->u
.ba
.tid
)))
4232 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
4233 "BAR received from %pM, tid %d, ssn %d",
4234 event
->u
.ba
.sta
->addr
, event
->u
.ba
.tid
,
4239 iwl_mvm_event_frame_timeout_callback(struct iwl_mvm
*mvm
,
4240 struct ieee80211_vif
*vif
,
4241 const struct ieee80211_event
*event
)
4243 struct iwl_fw_dbg_trigger_tlv
*trig
;
4244 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
4246 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
4249 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
4250 ba_trig
= (void *)trig
->data
;
4251 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
4254 if (!(le16_to_cpu(ba_trig
->frame_timeout
) & BIT(event
->u
.ba
.tid
)))
4257 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
4258 "Frame from %pM timed out, tid %d",
4259 event
->u
.ba
.sta
->addr
, event
->u
.ba
.tid
);
4262 static void iwl_mvm_mac_event_callback(struct ieee80211_hw
*hw
,
4263 struct ieee80211_vif
*vif
,
4264 const struct ieee80211_event
*event
)
4266 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
4268 switch (event
->type
) {
4270 iwl_mvm_event_mlme_callback(mvm
, vif
, event
);
4273 iwl_mvm_event_bar_rx_callback(mvm
, vif
, event
);
4275 case BA_FRAME_TIMEOUT
:
4276 iwl_mvm_event_frame_timeout_callback(mvm
, vif
, event
);
4283 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm
*mvm
,
4284 struct iwl_mvm_internal_rxq_notif
*notif
,
4287 u32 qmask
= BIT(mvm
->trans
->num_rx_queues
) - 1;
4290 lockdep_assert_held(&mvm
->mutex
);
4292 /* TODO - remove a000 disablement when we have RXQ config API */
4293 if (!iwl_mvm_has_new_rx_api(mvm
) || iwl_mvm_has_new_tx_api(mvm
))
4296 notif
->cookie
= mvm
->queue_sync_cookie
;
4299 atomic_set(&mvm
->queue_sync_counter
,
4300 mvm
->trans
->num_rx_queues
);
4302 ret
= iwl_mvm_notify_rx_queue(mvm
, qmask
, (u8
*)notif
, size
);
4304 IWL_ERR(mvm
, "Failed to trigger RX queues sync (%d)\n", ret
);
4309 ret
= wait_event_timeout(mvm
->rx_sync_waitq
,
4310 atomic_read(&mvm
->queue_sync_counter
) == 0 ||
4311 iwl_mvm_is_radio_killed(mvm
),
4313 WARN_ON_ONCE(!ret
&& !iwl_mvm_is_radio_killed(mvm
));
4317 atomic_set(&mvm
->queue_sync_counter
, 0);
4318 mvm
->queue_sync_cookie
++;
4321 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw
*hw
)
4323 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
4324 struct iwl_mvm_internal_rxq_notif data
= {
4325 .type
= IWL_MVM_RXQ_EMPTY
,
4329 mutex_lock(&mvm
->mutex
);
4330 iwl_mvm_sync_rx_queues_internal(mvm
, &data
, sizeof(data
));
4331 mutex_unlock(&mvm
->mutex
);
4334 const struct ieee80211_ops iwl_mvm_hw_ops
= {
4335 .tx
= iwl_mvm_mac_tx
,
4336 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
4337 .start
= iwl_mvm_mac_start
,
4338 .reconfig_complete
= iwl_mvm_mac_reconfig_complete
,
4339 .stop
= iwl_mvm_mac_stop
,
4340 .add_interface
= iwl_mvm_mac_add_interface
,
4341 .remove_interface
= iwl_mvm_mac_remove_interface
,
4342 .config
= iwl_mvm_mac_config
,
4343 .prepare_multicast
= iwl_mvm_prepare_multicast
,
4344 .configure_filter
= iwl_mvm_configure_filter
,
4345 .config_iface_filter
= iwl_mvm_config_iface_filter
,
4346 .bss_info_changed
= iwl_mvm_bss_info_changed
,
4347 .hw_scan
= iwl_mvm_mac_hw_scan
,
4348 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
4349 .sta_pre_rcu_remove
= iwl_mvm_sta_pre_rcu_remove
,
4350 .sta_state
= iwl_mvm_mac_sta_state
,
4351 .sta_notify
= iwl_mvm_mac_sta_notify
,
4352 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
4353 .release_buffered_frames
= iwl_mvm_mac_release_buffered_frames
,
4354 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
4355 .sta_rc_update
= iwl_mvm_sta_rc_update
,
4356 .conf_tx
= iwl_mvm_mac_conf_tx
,
4357 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
4358 .mgd_protect_tdls_discover
= iwl_mvm_mac_mgd_protect_tdls_discover
,
4359 .flush
= iwl_mvm_mac_flush
,
4360 .sched_scan_start
= iwl_mvm_mac_sched_scan_start
,
4361 .sched_scan_stop
= iwl_mvm_mac_sched_scan_stop
,
4362 .set_key
= iwl_mvm_mac_set_key
,
4363 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
4364 .remain_on_channel
= iwl_mvm_roc
,
4365 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
4366 .add_chanctx
= iwl_mvm_add_chanctx
,
4367 .remove_chanctx
= iwl_mvm_remove_chanctx
,
4368 .change_chanctx
= iwl_mvm_change_chanctx
,
4369 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
4370 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
4371 .switch_vif_chanctx
= iwl_mvm_switch_vif_chanctx
,
4373 .start_ap
= iwl_mvm_start_ap_ibss
,
4374 .stop_ap
= iwl_mvm_stop_ap_ibss
,
4375 .join_ibss
= iwl_mvm_start_ap_ibss
,
4376 .leave_ibss
= iwl_mvm_stop_ap_ibss
,
4378 .tx_last_beacon
= iwl_mvm_tx_last_beacon
,
4380 .set_tim
= iwl_mvm_set_tim
,
4382 .channel_switch
= iwl_mvm_channel_switch
,
4383 .pre_channel_switch
= iwl_mvm_pre_channel_switch
,
4384 .post_channel_switch
= iwl_mvm_post_channel_switch
,
4386 .tdls_channel_switch
= iwl_mvm_tdls_channel_switch
,
4387 .tdls_cancel_channel_switch
= iwl_mvm_tdls_cancel_channel_switch
,
4388 .tdls_recv_channel_switch
= iwl_mvm_tdls_recv_channel_switch
,
4390 .event_callback
= iwl_mvm_mac_event_callback
,
4392 .sync_rx_queues
= iwl_mvm_sync_rx_queues
,
4394 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd
)
4396 #ifdef CONFIG_PM_SLEEP
4398 .suspend
= iwl_mvm_suspend
,
4399 .resume
= iwl_mvm_resume
,
4400 .set_wakeup
= iwl_mvm_set_wakeup
,
4401 .set_rekey_data
= iwl_mvm_set_rekey_data
,
4402 #if IS_ENABLED(CONFIG_IPV6)
4403 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
4405 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,
4407 .get_survey
= iwl_mvm_mac_get_survey
,
4408 .sta_statistics
= iwl_mvm_mac_sta_statistics
,