1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
10 * Copyright(c) 2016 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 - 2014 Intel Mobile Communications GmbH
37 * All rights reserved.
39 * Redistribution and use in source and binary forms, with or without
40 * modification, are permitted provided that the following conditions
43 * * Redistributions of source code must retain the above copyright
44 * notice, this list of conditions and the following disclaimer.
45 * * Redistributions in binary form must reproduce the above copyright
46 * notice, this list of conditions and the following disclaimer in
47 * the documentation and/or other materials provided with the
49 * * Neither the name Intel Corporation nor the names of its
50 * contributors may be used to endorse or promote products derived
51 * from this software without specific prior written permission.
53 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
54 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
55 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
56 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
57 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
58 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
59 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
60 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
61 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
62 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
63 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
65 *****************************************************************************/
66 #include <linux/kernel.h>
67 #include <linux/slab.h>
68 #include <linux/skbuff.h>
69 #include <linux/netdevice.h>
70 #include <linux/etherdevice.h>
72 #include <linux/if_arp.h>
73 #include <linux/time.h>
74 #include <net/mac80211.h>
75 #include <net/ieee80211_radiotap.h>
78 #include "iwl-op-mode.h"
82 #include "time-event.h"
83 #include "iwl-eeprom-parse.h"
84 #include "iwl-phy-db.h"
86 #include "iwl-fw-error-dump.h"
88 #include "iwl-nvm-parse.h"
91 static const struct ieee80211_iface_limit iwl_mvm_limits
[] = {
94 .types
= BIT(NL80211_IFTYPE_STATION
),
98 .types
= BIT(NL80211_IFTYPE_AP
) |
99 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
100 BIT(NL80211_IFTYPE_P2P_GO
),
104 .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
),
108 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations
[] = {
110 .num_different_channels
= 2,
112 .limits
= iwl_mvm_limits
,
113 .n_limits
= ARRAY_SIZE(iwl_mvm_limits
),
117 #ifdef CONFIG_PM_SLEEP
118 static const struct nl80211_wowlan_tcp_data_token_feature
119 iwl_mvm_wowlan_tcp_token_feature
= {
122 .bufsize
= IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS
,
125 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support
= {
126 .tok
= &iwl_mvm_wowlan_tcp_token_feature
,
127 .data_payload_max
= IWL_WOWLAN_TCP_MAX_PACKET_LEN
-
128 sizeof(struct ethhdr
) -
129 sizeof(struct iphdr
) -
130 sizeof(struct tcphdr
),
131 .data_interval_max
= 65535, /* __le16 in API */
132 .wake_payload_max
= IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN
-
133 sizeof(struct ethhdr
) -
134 sizeof(struct iphdr
) -
135 sizeof(struct tcphdr
),
140 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
142 * Use the reserved field to indicate magic values.
143 * these values will only be used internally by the driver,
144 * and won't make it to the fw (reserved will be 0).
145 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
146 * be the vif's ip address. in case there is not a single
147 * ip address (0, or more than 1), this attribute will
149 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
150 * the LSB bytes of the vif's mac address
153 BC_FILTER_MAGIC_NONE
= 0,
158 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters
[] = {
162 .frame_type
= BCAST_FILTER_FRAME_TYPE_ALL
,
165 /* frame type - arp, hw type - ethernet */
167 BCAST_FILTER_OFFSET_PAYLOAD_START
,
168 .offset
= sizeof(rfc1042_header
),
169 .val
= cpu_to_be32(0x08060001),
170 .mask
= cpu_to_be32(0xffffffff),
175 BCAST_FILTER_OFFSET_PAYLOAD_START
,
176 .offset
= sizeof(rfc1042_header
) + 2 +
177 sizeof(struct arphdr
) +
178 ETH_ALEN
+ sizeof(__be32
) +
180 .mask
= cpu_to_be32(0xffffffff),
181 /* mark it as special field */
182 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_IP
),
187 /* dhcp offer bcast */
189 .frame_type
= BCAST_FILTER_FRAME_TYPE_IPV4
,
192 /* udp dest port - 68 (bootp client)*/
193 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
194 .offset
= offsetof(struct udphdr
, dest
),
195 .val
= cpu_to_be32(0x00440000),
196 .mask
= cpu_to_be32(0xffff0000),
199 /* dhcp - lsb bytes of client hw address */
200 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
202 .mask
= cpu_to_be32(0xffffffff),
203 /* mark it as special field */
204 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_MAC
),
208 /* last filter must be empty */
213 void iwl_mvm_ref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
215 if (!iwl_mvm_is_d0i3_supported(mvm
))
218 IWL_DEBUG_RPM(mvm
, "Take mvm reference - type %d\n", ref_type
);
219 spin_lock_bh(&mvm
->refs_lock
);
220 mvm
->refs
[ref_type
]++;
221 spin_unlock_bh(&mvm
->refs_lock
);
222 iwl_trans_ref(mvm
->trans
);
225 void iwl_mvm_unref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
227 if (!iwl_mvm_is_d0i3_supported(mvm
))
230 IWL_DEBUG_RPM(mvm
, "Leave mvm reference - type %d\n", ref_type
);
231 spin_lock_bh(&mvm
->refs_lock
);
232 if (WARN_ON(!mvm
->refs
[ref_type
])) {
233 spin_unlock_bh(&mvm
->refs_lock
);
236 mvm
->refs
[ref_type
]--;
237 spin_unlock_bh(&mvm
->refs_lock
);
238 iwl_trans_unref(mvm
->trans
);
241 static void iwl_mvm_unref_all_except(struct iwl_mvm
*mvm
,
242 enum iwl_mvm_ref_type except_ref
)
246 if (!iwl_mvm_is_d0i3_supported(mvm
))
249 spin_lock_bh(&mvm
->refs_lock
);
250 for (i
= 0; i
< IWL_MVM_REF_COUNT
; i
++) {
251 if (except_ref
== i
|| !mvm
->refs
[i
])
254 IWL_DEBUG_RPM(mvm
, "Cleanup: remove mvm ref type %d (%d)\n",
256 for (j
= 0; j
< mvm
->refs
[i
]; j
++)
257 iwl_trans_unref(mvm
->trans
);
260 spin_unlock_bh(&mvm
->refs_lock
);
263 bool iwl_mvm_ref_taken(struct iwl_mvm
*mvm
)
268 if (!iwl_mvm_is_d0i3_supported(mvm
))
271 spin_lock_bh(&mvm
->refs_lock
);
272 for (i
= 0; i
< IWL_MVM_REF_COUNT
; i
++) {
278 spin_unlock_bh(&mvm
->refs_lock
);
283 int iwl_mvm_ref_sync(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
285 iwl_mvm_ref(mvm
, ref_type
);
287 if (!wait_event_timeout(mvm
->d0i3_exit_waitq
,
288 !test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
),
291 iwl_mvm_unref(mvm
, ref_type
);
298 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm
*mvm
)
302 memset(mvm
->phy_ctxts
, 0, sizeof(mvm
->phy_ctxts
));
303 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
304 mvm
->phy_ctxts
[i
].id
= i
;
305 mvm
->phy_ctxts
[i
].ref
= 0;
309 struct ieee80211_regdomain
*iwl_mvm_get_regdomain(struct wiphy
*wiphy
,
311 enum iwl_mcc_source src_id
,
314 struct ieee80211_regdomain
*regd
= NULL
;
315 struct ieee80211_hw
*hw
= wiphy_to_ieee80211_hw(wiphy
);
316 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
317 struct iwl_mcc_update_resp
*resp
;
319 IWL_DEBUG_LAR(mvm
, "Getting regdomain data for %s from FW\n", alpha2
);
321 lockdep_assert_held(&mvm
->mutex
);
323 resp
= iwl_mvm_update_mcc(mvm
, alpha2
, src_id
);
324 if (IS_ERR_OR_NULL(resp
)) {
325 IWL_DEBUG_LAR(mvm
, "Could not get update from FW %d\n",
326 PTR_ERR_OR_ZERO(resp
));
331 *changed
= (resp
->status
== MCC_RESP_NEW_CHAN_PROFILE
);
333 regd
= iwl_parse_nvm_mcc_info(mvm
->trans
->dev
, mvm
->cfg
,
334 __le32_to_cpu(resp
->n_channels
),
336 __le16_to_cpu(resp
->mcc
));
337 /* Store the return source id */
338 src_id
= resp
->source_id
;
340 if (IS_ERR_OR_NULL(regd
)) {
341 IWL_DEBUG_LAR(mvm
, "Could not get parse update from FW %d\n",
342 PTR_ERR_OR_ZERO(regd
));
346 IWL_DEBUG_LAR(mvm
, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
347 regd
->alpha2
, regd
->alpha2
[0], regd
->alpha2
[1], src_id
);
348 mvm
->lar_regdom_set
= true;
349 mvm
->mcc_src
= src_id
;
355 void iwl_mvm_update_changed_regdom(struct iwl_mvm
*mvm
)
358 struct ieee80211_regdomain
*regd
;
360 if (!iwl_mvm_is_lar_supported(mvm
))
363 regd
= iwl_mvm_get_current_regdomain(mvm
, &changed
);
364 if (!IS_ERR_OR_NULL(regd
)) {
365 /* only update the regulatory core if changed */
367 regulatory_set_wiphy_regd(mvm
->hw
->wiphy
, regd
);
373 struct ieee80211_regdomain
*iwl_mvm_get_current_regdomain(struct iwl_mvm
*mvm
,
376 return iwl_mvm_get_regdomain(mvm
->hw
->wiphy
, "ZZ",
377 iwl_mvm_is_wifi_mcc_supported(mvm
) ?
378 MCC_SOURCE_GET_CURRENT
:
379 MCC_SOURCE_OLD_FW
, changed
);
382 int iwl_mvm_init_fw_regd(struct iwl_mvm
*mvm
)
384 enum iwl_mcc_source used_src
;
385 struct ieee80211_regdomain
*regd
;
388 const struct ieee80211_regdomain
*r
=
389 rtnl_dereference(mvm
->hw
->wiphy
->regd
);
394 /* save the last source in case we overwrite it below */
395 used_src
= mvm
->mcc_src
;
396 if (iwl_mvm_is_wifi_mcc_supported(mvm
)) {
397 /* Notify the firmware we support wifi location updates */
398 regd
= iwl_mvm_get_current_regdomain(mvm
, NULL
);
399 if (!IS_ERR_OR_NULL(regd
))
403 /* Now set our last stored MCC and source */
404 regd
= iwl_mvm_get_regdomain(mvm
->hw
->wiphy
, r
->alpha2
, used_src
,
406 if (IS_ERR_OR_NULL(regd
))
409 /* update cfg80211 if the regdomain was changed */
411 ret
= regulatory_set_wiphy_regd_sync_rtnl(mvm
->hw
->wiphy
, regd
);
419 int iwl_mvm_mac_setup_register(struct iwl_mvm
*mvm
)
421 struct ieee80211_hw
*hw
= mvm
->hw
;
423 static const u32 mvm_ciphers
[] = {
424 WLAN_CIPHER_SUITE_WEP40
,
425 WLAN_CIPHER_SUITE_WEP104
,
426 WLAN_CIPHER_SUITE_TKIP
,
427 WLAN_CIPHER_SUITE_CCMP
,
430 /* Tell mac80211 our characteristics */
431 ieee80211_hw_set(hw
, SIGNAL_DBM
);
432 ieee80211_hw_set(hw
, SPECTRUM_MGMT
);
433 ieee80211_hw_set(hw
, REPORTS_TX_ACK_STATUS
);
434 ieee80211_hw_set(hw
, QUEUE_CONTROL
);
435 ieee80211_hw_set(hw
, WANT_MONITOR_VIF
);
436 ieee80211_hw_set(hw
, SUPPORTS_PS
);
437 ieee80211_hw_set(hw
, SUPPORTS_DYNAMIC_PS
);
438 ieee80211_hw_set(hw
, AMPDU_AGGREGATION
);
439 ieee80211_hw_set(hw
, TIMING_BEACON_ONLY
);
440 ieee80211_hw_set(hw
, CONNECTION_MONITOR
);
441 ieee80211_hw_set(hw
, CHANCTX_STA_CSA
);
442 ieee80211_hw_set(hw
, SUPPORT_FAST_XMIT
);
443 ieee80211_hw_set(hw
, SUPPORTS_CLONED_SKBS
);
444 ieee80211_hw_set(hw
, SUPPORTS_AMSDU_IN_AMPDU
);
445 ieee80211_hw_set(hw
, NEEDS_UNIQUE_STA_ADDR
);
446 if (iwl_mvm_has_new_rx_api(mvm
))
447 ieee80211_hw_set(hw
, SUPPORTS_REORDERING_BUFFER
);
449 if (mvm
->trans
->num_rx_queues
> 1)
450 ieee80211_hw_set(hw
, USES_RSS
);
452 if (mvm
->trans
->max_skb_frags
)
453 hw
->netdev_features
= NETIF_F_HIGHDMA
| NETIF_F_SG
;
455 if (!iwl_mvm_is_dqa_supported(mvm
))
456 hw
->queues
= mvm
->first_agg_queue
;
458 hw
->queues
= IEEE80211_MAX_QUEUES
;
459 hw
->offchannel_tx_hw_queue
= IWL_MVM_OFFCHANNEL_QUEUE
;
460 hw
->radiotap_mcs_details
|= IEEE80211_RADIOTAP_MCS_HAVE_FEC
|
461 IEEE80211_RADIOTAP_MCS_HAVE_STBC
;
462 hw
->radiotap_vht_details
|= IEEE80211_RADIOTAP_VHT_KNOWN_STBC
|
463 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED
;
464 hw
->rate_control_algorithm
= "iwl-mvm-rs";
465 hw
->uapsd_queues
= IWL_MVM_UAPSD_QUEUES
;
466 hw
->uapsd_max_sp_len
= IWL_UAPSD_MAX_SP
;
468 BUILD_BUG_ON(ARRAY_SIZE(mvm
->ciphers
) < ARRAY_SIZE(mvm_ciphers
) + 4);
469 memcpy(mvm
->ciphers
, mvm_ciphers
, sizeof(mvm_ciphers
));
470 hw
->wiphy
->n_cipher_suites
= ARRAY_SIZE(mvm_ciphers
);
471 hw
->wiphy
->cipher_suites
= mvm
->ciphers
;
473 if (iwl_mvm_has_new_rx_api(mvm
)) {
474 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] =
475 WLAN_CIPHER_SUITE_GCMP
;
476 hw
->wiphy
->n_cipher_suites
++;
477 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] =
478 WLAN_CIPHER_SUITE_GCMP_256
;
479 hw
->wiphy
->n_cipher_suites
++;
483 * Enable 11w if advertised by firmware and software crypto
484 * is not enabled (as the firmware will interpret some mgmt
485 * packets, so enabling it with software crypto isn't safe)
487 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_MFP
&&
488 !iwlwifi_mod_params
.sw_crypto
) {
489 ieee80211_hw_set(hw
, MFP_CAPABLE
);
490 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] =
491 WLAN_CIPHER_SUITE_AES_CMAC
;
492 hw
->wiphy
->n_cipher_suites
++;
495 /* currently FW API supports only one optional cipher scheme */
496 if (mvm
->fw
->cs
[0].cipher
) {
497 const struct iwl_fw_cipher_scheme
*fwcs
= &mvm
->fw
->cs
[0];
498 struct ieee80211_cipher_scheme
*cs
= &mvm
->cs
[0];
500 mvm
->hw
->n_cipher_schemes
= 1;
502 cs
->cipher
= le32_to_cpu(fwcs
->cipher
);
503 cs
->iftype
= BIT(NL80211_IFTYPE_STATION
);
504 cs
->hdr_len
= fwcs
->hdr_len
;
505 cs
->pn_len
= fwcs
->pn_len
;
506 cs
->pn_off
= fwcs
->pn_off
;
507 cs
->key_idx_off
= fwcs
->key_idx_off
;
508 cs
->key_idx_mask
= fwcs
->key_idx_mask
;
509 cs
->key_idx_shift
= fwcs
->key_idx_shift
;
510 cs
->mic_len
= fwcs
->mic_len
;
512 mvm
->hw
->cipher_schemes
= mvm
->cs
;
513 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] = cs
->cipher
;
514 hw
->wiphy
->n_cipher_suites
++;
517 ieee80211_hw_set(hw
, SINGLE_SCAN_ON_ALL_BANDS
);
518 hw
->wiphy
->features
|=
519 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR
|
520 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR
|
521 NL80211_FEATURE_ND_RANDOM_MAC_ADDR
;
523 hw
->sta_data_size
= sizeof(struct iwl_mvm_sta
);
524 hw
->vif_data_size
= sizeof(struct iwl_mvm_vif
);
525 hw
->chanctx_data_size
= sizeof(u16
);
527 hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
528 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
529 BIT(NL80211_IFTYPE_AP
) |
530 BIT(NL80211_IFTYPE_P2P_GO
) |
531 BIT(NL80211_IFTYPE_P2P_DEVICE
) |
532 BIT(NL80211_IFTYPE_ADHOC
);
534 hw
->wiphy
->flags
|= WIPHY_FLAG_IBSS_RSN
;
535 hw
->wiphy
->regulatory_flags
|= REGULATORY_ENABLE_RELAX_NO_IR
;
536 if (iwl_mvm_is_lar_supported(mvm
))
537 hw
->wiphy
->regulatory_flags
|= REGULATORY_WIPHY_SELF_MANAGED
;
539 hw
->wiphy
->regulatory_flags
|= REGULATORY_CUSTOM_REG
|
540 REGULATORY_DISABLE_BEACON_HINTS
;
542 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_GO_UAPSD
)
543 hw
->wiphy
->flags
|= WIPHY_FLAG_AP_UAPSD
;
545 hw
->wiphy
->flags
|= WIPHY_FLAG_HAS_CHANNEL_SWITCH
;
547 hw
->wiphy
->iface_combinations
= iwl_mvm_iface_combinations
;
548 hw
->wiphy
->n_iface_combinations
=
549 ARRAY_SIZE(iwl_mvm_iface_combinations
);
551 hw
->wiphy
->max_remain_on_channel_duration
= 10000;
552 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
553 /* we can compensate an offset of up to 3 channels = 15 MHz */
554 hw
->wiphy
->max_adj_channel_rssi_comp
= 3 * 5;
556 /* Extract MAC address */
557 memcpy(mvm
->addresses
[0].addr
, mvm
->nvm_data
->hw_addr
, ETH_ALEN
);
558 hw
->wiphy
->addresses
= mvm
->addresses
;
559 hw
->wiphy
->n_addresses
= 1;
561 /* Extract additional MAC addresses if available */
562 num_mac
= (mvm
->nvm_data
->n_hw_addrs
> 1) ?
563 min(IWL_MVM_MAX_ADDRESSES
, mvm
->nvm_data
->n_hw_addrs
) : 1;
565 for (i
= 1; i
< num_mac
; i
++) {
566 memcpy(mvm
->addresses
[i
].addr
, mvm
->addresses
[i
-1].addr
,
568 mvm
->addresses
[i
].addr
[5]++;
569 hw
->wiphy
->n_addresses
++;
572 iwl_mvm_reset_phy_ctxts(mvm
);
574 hw
->wiphy
->max_scan_ie_len
= iwl_mvm_max_scan_ie_len(mvm
);
576 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
578 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK
& IWL_MVM_SCAN_MASK
);
579 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS
> HWEIGHT32(IWL_MVM_SCAN_MASK
) ||
580 IWL_MVM_MAX_LMAC_SCANS
> HWEIGHT32(IWL_MVM_SCAN_MASK
));
582 if (fw_has_capa(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_CAPA_UMAC_SCAN
))
583 mvm
->max_scans
= IWL_MVM_MAX_UMAC_SCANS
;
585 mvm
->max_scans
= IWL_MVM_MAX_LMAC_SCANS
;
587 if (mvm
->nvm_data
->bands
[NL80211_BAND_2GHZ
].n_channels
)
588 hw
->wiphy
->bands
[NL80211_BAND_2GHZ
] =
589 &mvm
->nvm_data
->bands
[NL80211_BAND_2GHZ
];
590 if (mvm
->nvm_data
->bands
[NL80211_BAND_5GHZ
].n_channels
) {
591 hw
->wiphy
->bands
[NL80211_BAND_5GHZ
] =
592 &mvm
->nvm_data
->bands
[NL80211_BAND_5GHZ
];
594 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
595 IWL_UCODE_TLV_CAPA_BEAMFORMER
) &&
596 fw_has_api(&mvm
->fw
->ucode_capa
,
597 IWL_UCODE_TLV_API_LQ_SS_PARAMS
))
598 hw
->wiphy
->bands
[NL80211_BAND_5GHZ
]->vht_cap
.cap
|=
599 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE
;
602 hw
->wiphy
->hw_version
= mvm
->trans
->hw_id
;
604 if (iwlmvm_mod_params
.power_scheme
!= IWL_POWER_SCHEME_CAM
)
605 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
607 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
609 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_SCHED_SCAN
;
610 hw
->wiphy
->max_sched_scan_ssids
= PROBE_OPTION_MAX
;
611 hw
->wiphy
->max_match_sets
= IWL_SCAN_MAX_PROFILES
;
612 /* we create the 802.11 header and zero length SSID IE. */
613 hw
->wiphy
->max_sched_scan_ie_len
=
614 SCAN_OFFLOAD_PROBE_REQ_SIZE
- 24 - 2;
615 hw
->wiphy
->max_sched_scan_plans
= IWL_MAX_SCHED_SCAN_PLANS
;
616 hw
->wiphy
->max_sched_scan_plan_interval
= U16_MAX
;
619 * the firmware uses u8 for num of iterations, but 0xff is saved for
620 * infinite loop, so the maximum number of iterations is actually 254.
622 hw
->wiphy
->max_sched_scan_plan_iterations
= 254;
624 hw
->wiphy
->features
|= NL80211_FEATURE_P2P_GO_CTWIN
|
625 NL80211_FEATURE_LOW_PRIORITY_SCAN
|
626 NL80211_FEATURE_P2P_GO_OPPPS
|
627 NL80211_FEATURE_DYNAMIC_SMPS
|
628 NL80211_FEATURE_STATIC_SMPS
|
629 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION
;
631 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
632 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT
))
633 hw
->wiphy
->features
|= NL80211_FEATURE_TX_POWER_INSERTION
;
634 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
635 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT
))
636 hw
->wiphy
->features
|= NL80211_FEATURE_QUIET
;
638 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
639 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT
))
640 hw
->wiphy
->features
|=
641 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES
;
643 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
644 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT
))
645 hw
->wiphy
->features
|= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES
;
647 mvm
->rts_threshold
= IEEE80211_MAX_RTS_THRESHOLD
;
649 #ifdef CONFIG_PM_SLEEP
650 if (iwl_mvm_is_d0i3_supported(mvm
) &&
651 device_can_wakeup(mvm
->trans
->dev
)) {
652 mvm
->wowlan
.flags
= WIPHY_WOWLAN_ANY
;
653 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
656 if (mvm
->fw
->img
[IWL_UCODE_WOWLAN
].sec
[0].len
&&
657 mvm
->trans
->ops
->d3_suspend
&&
658 mvm
->trans
->ops
->d3_resume
&&
659 device_can_wakeup(mvm
->trans
->dev
)) {
660 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_MAGIC_PKT
|
661 WIPHY_WOWLAN_DISCONNECT
|
662 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
663 WIPHY_WOWLAN_RFKILL_RELEASE
|
664 WIPHY_WOWLAN_NET_DETECT
;
665 if (!iwlwifi_mod_params
.sw_crypto
)
666 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
667 WIPHY_WOWLAN_GTK_REKEY_FAILURE
|
668 WIPHY_WOWLAN_4WAY_HANDSHAKE
;
670 mvm
->wowlan
.n_patterns
= IWL_WOWLAN_MAX_PATTERNS
;
671 mvm
->wowlan
.pattern_min_len
= IWL_WOWLAN_MIN_PATTERN_LEN
;
672 mvm
->wowlan
.pattern_max_len
= IWL_WOWLAN_MAX_PATTERN_LEN
;
673 mvm
->wowlan
.max_nd_match_sets
= IWL_SCAN_MAX_PROFILES
;
674 mvm
->wowlan
.tcp
= &iwl_mvm_wowlan_tcp_support
;
675 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
679 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
680 /* assign default bcast filtering configuration */
681 mvm
->bcast_filters
= iwl_mvm_default_bcast_filters
;
684 ret
= iwl_mvm_leds_init(mvm
);
688 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
689 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT
)) {
690 IWL_DEBUG_TDLS(mvm
, "TDLS supported\n");
691 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_TDLS
;
692 ieee80211_hw_set(hw
, TDLS_WIDER_BW
);
695 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
696 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH
)) {
697 IWL_DEBUG_TDLS(mvm
, "TDLS channel switch supported\n");
698 hw
->wiphy
->features
|= NL80211_FEATURE_TDLS_CHANNEL_SWITCH
;
701 hw
->netdev_features
|= mvm
->cfg
->features
;
702 if (!iwl_mvm_is_csum_supported(mvm
)) {
703 hw
->netdev_features
&= ~(IWL_TX_CSUM_NETIF_FLAGS
|
705 /* We may support SW TX CSUM */
706 if (IWL_MVM_SW_TX_CSUM_OFFLOAD
)
707 hw
->netdev_features
|= IWL_TX_CSUM_NETIF_FLAGS
;
710 ret
= ieee80211_register_hw(mvm
->hw
);
712 iwl_mvm_leds_exit(mvm
);
717 static bool iwl_mvm_defer_tx(struct iwl_mvm
*mvm
,
718 struct ieee80211_sta
*sta
,
721 struct iwl_mvm_sta
*mvmsta
;
725 * double check the IN_D0I3 flag both before and after
726 * taking the spinlock, in order to prevent taking
727 * the spinlock when not needed.
729 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
)))
732 spin_lock(&mvm
->d0i3_tx_lock
);
734 * testing the flag again ensures the skb dequeue
735 * loop (on d0i3 exit) hasn't run yet.
737 if (!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
))
740 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
741 if (mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
||
742 mvmsta
->sta_id
!= mvm
->d0i3_ap_sta_id
)
745 __skb_queue_tail(&mvm
->d0i3_tx
, skb
);
746 ieee80211_stop_queues(mvm
->hw
);
749 iwl_mvm_ref(mvm
, IWL_MVM_REF_TX
);
750 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX
);
754 spin_unlock(&mvm
->d0i3_tx_lock
);
758 static void iwl_mvm_mac_tx(struct ieee80211_hw
*hw
,
759 struct ieee80211_tx_control
*control
,
762 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
763 struct ieee80211_sta
*sta
= control
->sta
;
764 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
765 struct ieee80211_hdr
*hdr
= (void *)skb
->data
;
767 if (iwl_mvm_is_radio_killed(mvm
)) {
768 IWL_DEBUG_DROP(mvm
, "Dropping - RF/CT KILL\n");
772 if (IEEE80211_SKB_CB(skb
)->hw_queue
== IWL_MVM_OFFCHANNEL_QUEUE
&&
773 !test_bit(IWL_MVM_STATUS_ROC_RUNNING
, &mvm
->status
) &&
774 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING
, &mvm
->status
))
777 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
778 if (unlikely(info
->flags
& IEEE80211_TX_CTL_NO_PS_BUFFER
&&
779 ieee80211_is_mgmt(hdr
->frame_control
) &&
780 !ieee80211_is_deauth(hdr
->frame_control
) &&
781 !ieee80211_is_disassoc(hdr
->frame_control
) &&
782 !ieee80211_is_action(hdr
->frame_control
)))
786 if (iwl_mvm_defer_tx(mvm
, sta
, skb
))
788 if (iwl_mvm_tx_skb(mvm
, skb
, sta
))
793 if (iwl_mvm_tx_skb_non_sta(mvm
, skb
))
797 ieee80211_free_txskb(hw
, skb
);
800 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg
*cfg
)
802 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
)
807 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg
*cfg
)
809 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
)
811 if (iwlwifi_mod_params
.disable_11n
& IWL_ENABLE_HT_TXAGG
)
814 /* enabled by default */
818 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
820 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
822 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
826 iwl_mvm_ampdu_check_trigger(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
827 struct ieee80211_sta
*sta
, u16 tid
, u16 rx_ba_ssn
,
828 enum ieee80211_ampdu_mlme_action action
)
830 struct iwl_fw_dbg_trigger_tlv
*trig
;
831 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
833 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
836 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
837 ba_trig
= (void *)trig
->data
;
839 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
843 case IEEE80211_AMPDU_TX_OPERATIONAL
: {
844 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
845 struct iwl_mvm_tid_data
*tid_data
= &mvmsta
->tid_data
[tid
];
847 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->tx_ba_start
, tid
,
848 "TX AGG START: MAC %pM tid %d ssn %d\n",
849 sta
->addr
, tid
, tid_data
->ssn
);
852 case IEEE80211_AMPDU_TX_STOP_CONT
:
853 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->tx_ba_stop
, tid
,
854 "TX AGG STOP: MAC %pM tid %d\n",
857 case IEEE80211_AMPDU_RX_START
:
858 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->rx_ba_start
, tid
,
859 "RX AGG START: MAC %pM tid %d ssn %d\n",
860 sta
->addr
, tid
, rx_ba_ssn
);
862 case IEEE80211_AMPDU_RX_STOP
:
863 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->rx_ba_stop
, tid
,
864 "RX AGG STOP: MAC %pM tid %d\n",
872 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw
*hw
,
873 struct ieee80211_vif
*vif
,
874 struct ieee80211_ampdu_params
*params
)
876 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
878 bool tx_agg_ref
= false;
879 struct ieee80211_sta
*sta
= params
->sta
;
880 enum ieee80211_ampdu_mlme_action action
= params
->action
;
881 u16 tid
= params
->tid
;
882 u16
*ssn
= ¶ms
->ssn
;
883 u8 buf_size
= params
->buf_size
;
884 bool amsdu
= params
->amsdu
;
885 u16 timeout
= params
->timeout
;
887 IWL_DEBUG_HT(mvm
, "A-MPDU action on addr %pM tid %d: action %d\n",
888 sta
->addr
, tid
, action
);
890 if (!(mvm
->nvm_data
->sku_cap_11n_enable
))
893 /* return from D0i3 before starting a new Tx aggregation */
895 case IEEE80211_AMPDU_TX_START
:
896 case IEEE80211_AMPDU_TX_STOP_CONT
:
897 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
898 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
899 case IEEE80211_AMPDU_TX_OPERATIONAL
:
901 * for tx start, wait synchronously until D0i3 exit to
902 * get the correct sequence number for the tid.
903 * additionally, some other ampdu actions use direct
904 * target access, which is not handled automatically
905 * by the trans layer (unlike commands), so wait for
906 * d0i3 exit in these cases as well.
908 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_TX_AGG
);
918 mutex_lock(&mvm
->mutex
);
921 case IEEE80211_AMPDU_RX_START
:
922 if (!iwl_enable_rx_ampdu(mvm
->cfg
)) {
926 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, *ssn
, true, buf_size
,
929 case IEEE80211_AMPDU_RX_STOP
:
930 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, 0, false, buf_size
,
933 case IEEE80211_AMPDU_TX_START
:
934 if (!iwl_enable_tx_ampdu(mvm
->cfg
)) {
938 ret
= iwl_mvm_sta_tx_agg_start(mvm
, vif
, sta
, tid
, ssn
);
940 case IEEE80211_AMPDU_TX_STOP_CONT
:
941 ret
= iwl_mvm_sta_tx_agg_stop(mvm
, vif
, sta
, tid
);
943 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
944 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
945 ret
= iwl_mvm_sta_tx_agg_flush(mvm
, vif
, sta
, tid
);
947 case IEEE80211_AMPDU_TX_OPERATIONAL
:
948 ret
= iwl_mvm_sta_tx_agg_oper(mvm
, vif
, sta
, tid
,
960 if (action
== IEEE80211_AMPDU_RX_START
)
963 iwl_mvm_ampdu_check_trigger(mvm
, vif
, sta
, tid
,
966 mutex_unlock(&mvm
->mutex
);
969 * If the tid is marked as started, we won't use it for offloaded
970 * traffic on the next D0i3 entry. It's safe to unref.
973 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX_AGG
);
978 static void iwl_mvm_cleanup_iterator(void *data
, u8
*mac
,
979 struct ieee80211_vif
*vif
)
981 struct iwl_mvm
*mvm
= data
;
982 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
984 mvmvif
->uploaded
= false;
985 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
987 spin_lock_bh(&mvm
->time_event_lock
);
988 iwl_mvm_te_clear_data(mvm
, &mvmvif
->time_event_data
);
989 spin_unlock_bh(&mvm
->time_event_lock
);
991 mvmvif
->phy_ctxt
= NULL
;
992 memset(&mvmvif
->bf_data
, 0, sizeof(mvmvif
->bf_data
));
995 static void iwl_mvm_restart_cleanup(struct iwl_mvm
*mvm
)
997 /* clear the D3 reconfig, we only need it to avoid dumping a
998 * firmware coredump on reconfiguration, we shouldn't do that
999 * on D3->D0 transition
1001 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG
, &mvm
->status
)) {
1002 mvm
->fw_dump_desc
= &iwl_mvm_dump_desc_assert
;
1003 iwl_mvm_fw_error_dump(mvm
);
1006 /* cleanup all stale references (scan, roc), but keep the
1007 * ucode_down ref until reconfig is complete
1009 iwl_mvm_unref_all_except(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1011 iwl_mvm_stop_device(mvm
);
1013 mvm
->scan_status
= 0;
1014 mvm
->ps_disabled
= false;
1015 mvm
->calibrating
= false;
1017 /* just in case one was running */
1018 iwl_mvm_cleanup_roc_te(mvm
);
1019 ieee80211_remain_on_channel_expired(mvm
->hw
);
1022 * cleanup all interfaces, even inactive ones, as some might have
1023 * gone down during the HW restart
1025 ieee80211_iterate_interfaces(mvm
->hw
, 0, iwl_mvm_cleanup_iterator
, mvm
);
1027 mvm
->p2p_device_vif
= NULL
;
1028 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1030 iwl_mvm_reset_phy_ctxts(mvm
);
1031 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
1032 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
1033 memset(mvm
->sta_deferred_frames
, 0, sizeof(mvm
->sta_deferred_frames
));
1034 memset(mvm
->tfd_drained
, 0, sizeof(mvm
->tfd_drained
));
1035 memset(&mvm
->last_bt_notif
, 0, sizeof(mvm
->last_bt_notif
));
1036 memset(&mvm
->last_bt_ci_cmd
, 0, sizeof(mvm
->last_bt_ci_cmd
));
1038 ieee80211_wake_queues(mvm
->hw
);
1040 /* clear any stale d0i3 state */
1041 clear_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
);
1044 mvm
->rx_ba_sessions
= 0;
1045 mvm
->fw_dbg_conf
= FW_DBG_INVALID
;
1047 /* keep statistics ticking */
1048 iwl_mvm_accu_radio_stats(mvm
);
1051 int __iwl_mvm_mac_start(struct iwl_mvm
*mvm
)
1055 lockdep_assert_held(&mvm
->mutex
);
1057 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
1058 /* Clean up some internal and mac80211 state on restart */
1059 iwl_mvm_restart_cleanup(mvm
);
1061 /* Hold the reference to prevent runtime suspend while
1062 * the start procedure runs. It's a bit confusing
1063 * that the UCODE_DOWN reference is taken, but it just
1064 * means "UCODE is not UP yet". ( TODO: rename this
1067 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1069 ret
= iwl_mvm_up(mvm
);
1071 if (ret
&& test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
1072 /* Something went wrong - we need to finish some cleanup
1073 * that normally iwl_mvm_mac_restart_complete() below
1076 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1077 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
1083 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
1085 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1088 /* Some hw restart cleanups must not hold the mutex */
1089 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
1091 * Make sure we are out of d0i3. This is needed
1092 * to make sure the reference accounting is correct
1093 * (and there is no stale d0i3_exit_work).
1095 wait_event_timeout(mvm
->d0i3_exit_waitq
,
1096 !test_bit(IWL_MVM_STATUS_IN_D0I3
,
1101 mutex_lock(&mvm
->mutex
);
1102 ret
= __iwl_mvm_mac_start(mvm
);
1103 mutex_unlock(&mvm
->mutex
);
1108 static void iwl_mvm_restart_complete(struct iwl_mvm
*mvm
)
1112 mutex_lock(&mvm
->mutex
);
1114 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1115 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
1116 ret
= iwl_mvm_update_quotas(mvm
, true, NULL
);
1118 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
1121 /* allow transport/FW low power modes */
1122 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1125 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1126 * of packets the FW sent out, so we must reconnect.
1128 iwl_mvm_teardown_tdls_peers(mvm
);
1130 mutex_unlock(&mvm
->mutex
);
1133 static void iwl_mvm_resume_complete(struct iwl_mvm
*mvm
)
1135 if (iwl_mvm_is_d0i3_supported(mvm
) &&
1136 iwl_mvm_enter_d0i3_on_suspend(mvm
))
1137 WARN_ONCE(!wait_event_timeout(mvm
->d0i3_exit_waitq
,
1138 !test_bit(IWL_MVM_STATUS_IN_D0I3
,
1141 "D0i3 exit on resume timed out\n");
1145 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw
*hw
,
1146 enum ieee80211_reconfig_type reconfig_type
)
1148 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1150 switch (reconfig_type
) {
1151 case IEEE80211_RECONFIG_TYPE_RESTART
:
1152 iwl_mvm_restart_complete(mvm
);
1154 case IEEE80211_RECONFIG_TYPE_SUSPEND
:
1155 iwl_mvm_resume_complete(mvm
);
1160 void __iwl_mvm_mac_stop(struct iwl_mvm
*mvm
)
1162 lockdep_assert_held(&mvm
->mutex
);
1164 /* firmware counters are obviously reset now, but we shouldn't
1165 * partially track so also clear the fw_reset_accu counters.
1167 memset(&mvm
->accu_radio_stats
, 0, sizeof(mvm
->accu_radio_stats
));
1169 /* async_handlers_wk is now blocked */
1172 * The work item could be running or queued if the
1173 * ROC time event stops just as we get here.
1175 flush_work(&mvm
->roc_done_wk
);
1177 iwl_mvm_stop_device(mvm
);
1179 iwl_mvm_async_handlers_purge(mvm
);
1180 /* async_handlers_list is empty and will stay empty: HW is stopped */
1182 /* the fw is stopped, the aux sta is dead: clean up driver state */
1183 iwl_mvm_del_aux_sta(mvm
);
1185 iwl_free_fw_paging(mvm
);
1188 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1189 * won't be called in this case).
1190 * But make sure to cleanup interfaces that have gone down before/during
1191 * HW restart was requested.
1193 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
1194 ieee80211_iterate_interfaces(mvm
->hw
, 0,
1195 iwl_mvm_cleanup_iterator
, mvm
);
1197 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1198 * make sure there's nothing left there and warn if any is found.
1200 if (fw_has_capa(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_CAPA_UMAC_SCAN
)) {
1203 for (i
= 0; i
< mvm
->max_scans
; i
++) {
1204 if (WARN_ONCE(mvm
->scan_uid_status
[i
],
1205 "UMAC scan UID %d status was not cleaned\n",
1207 mvm
->scan_uid_status
[i
] = 0;
1212 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
1214 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1216 flush_work(&mvm
->d0i3_exit_work
);
1217 flush_work(&mvm
->async_handlers_wk
);
1218 flush_work(&mvm
->add_stream_wk
);
1219 cancel_delayed_work_sync(&mvm
->fw_dump_wk
);
1220 cancel_delayed_work_sync(&mvm
->cs_tx_unblock_dwork
);
1221 cancel_delayed_work_sync(&mvm
->scan_timeout_dwork
);
1222 iwl_mvm_free_fw_dump_desc(mvm
);
1224 mutex_lock(&mvm
->mutex
);
1225 __iwl_mvm_mac_stop(mvm
);
1226 mutex_unlock(&mvm
->mutex
);
1229 * The worker might have been waiting for the mutex, let it run and
1230 * discover that its list is now empty.
1232 cancel_work_sync(&mvm
->async_handlers_wk
);
1235 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
1239 lockdep_assert_held(&mvm
->mutex
);
1241 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
1242 if (!mvm
->phy_ctxts
[i
].ref
)
1243 return &mvm
->phy_ctxts
[i
];
1245 IWL_ERR(mvm
, "No available PHY context\n");
1249 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
1252 struct iwl_dev_tx_power_cmd cmd
= {
1253 .v3
.v2
.set_mode
= cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC
),
1254 .v3
.v2
.mac_context_id
=
1255 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif
)->id
),
1256 .v3
.v2
.pwr_restriction
= cpu_to_le16(8 * tx_power
),
1258 int len
= sizeof(cmd
);
1260 if (tx_power
== IWL_DEFAULT_MAX_TX_POWER
)
1261 cmd
.v3
.v2
.pwr_restriction
= cpu_to_le16(IWL_DEV_MAX_TX_POWER
);
1263 if (!fw_has_capa(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_CAPA_TX_POWER_ACK
))
1264 len
= sizeof(cmd
.v3
);
1265 if (!fw_has_api(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_API_TX_POWER_CHAIN
))
1266 len
= sizeof(cmd
.v3
.v2
);
1268 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, 0, len
, &cmd
);
1271 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
1272 struct ieee80211_vif
*vif
)
1274 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1275 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1281 * make sure D0i3 exit is completed, otherwise a target access
1282 * during tx queue configuration could be done when still in
1285 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_ADD_IF
);
1290 * Not much to do here. The stack will not allow interface
1291 * types or combinations that we didn't advertise, so we
1292 * don't really have to check the types.
1295 mutex_lock(&mvm
->mutex
);
1297 /* make sure that beacon statistics don't go backwards with FW reset */
1298 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
1299 mvmvif
->beacon_stats
.accu_num_beacons
+=
1300 mvmvif
->beacon_stats
.num_beacons
;
1302 /* Allocate resources for the MAC context, and add it to the fw */
1303 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
1307 /* Counting number of interfaces is needed for legacy PM */
1308 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1312 * The AP binding flow can be done only after the beacon
1313 * template is configured (which happens only in the mac80211
1314 * start_ap() flow), and adding the broadcast station can happen
1315 * only after the binding.
1316 * In addition, since modifying the MAC before adding a bcast
1317 * station is not allowed by the FW, delay the adding of MAC context to
1318 * the point where we can also add the bcast station.
1319 * In short: there's not much we can do at this point, other than
1320 * allocating resources :)
1322 if (vif
->type
== NL80211_IFTYPE_AP
||
1323 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1324 ret
= iwl_mvm_alloc_bcast_sta(mvm
, vif
);
1326 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
1330 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1334 mvmvif
->features
|= hw
->netdev_features
;
1336 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1340 ret
= iwl_mvm_power_update_mac(mvm
);
1342 goto out_remove_mac
;
1344 /* beacon filtering */
1345 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
1347 goto out_remove_mac
;
1349 if (!mvm
->bf_allowed_vif
&&
1350 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
) {
1351 mvm
->bf_allowed_vif
= mvmvif
;
1352 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
1353 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
1357 * P2P_DEVICE interface does not have a channel context assigned to it,
1358 * so a dedicated PHY context is allocated to it and the corresponding
1359 * MAC context is bound to it at this stage.
1361 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1363 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1364 if (!mvmvif
->phy_ctxt
) {
1369 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1370 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1374 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
);
1378 /* Save a pointer to p2p device vif, so it can later be used to
1379 * update the p2p device MAC when a GO is started/stopped */
1380 mvm
->p2p_device_vif
= vif
;
1383 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1387 iwl_mvm_binding_remove_vif(mvm
, vif
);
1389 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1391 if (mvm
->bf_allowed_vif
== mvmvif
) {
1392 mvm
->bf_allowed_vif
= NULL
;
1393 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1394 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1397 mvmvif
->phy_ctxt
= NULL
;
1398 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1400 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1403 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1405 mutex_unlock(&mvm
->mutex
);
1407 iwl_mvm_unref(mvm
, IWL_MVM_REF_ADD_IF
);
1412 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
1413 struct ieee80211_vif
*vif
)
1415 u32 tfd_msk
= iwl_mvm_mac_get_queues_mask(vif
);
1419 * mac80211 first removes all the stations of the vif and
1420 * then removes the vif. When it removes a station it also
1421 * flushes the AMPDU session. So by now, all the AMPDU sessions
1422 * of all the stations of this vif are closed, and the queues
1423 * of these AMPDU sessions are properly closed.
1424 * We still need to take care of the shared queues of the vif.
1427 mutex_lock(&mvm
->mutex
);
1428 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, 0);
1429 mutex_unlock(&mvm
->mutex
);
1432 * There are transports that buffer a few frames in the host.
1433 * For these, the flush above isn't enough since while we were
1434 * flushing, the transport might have sent more frames to the
1435 * device. To solve this, wait here until the transport is
1436 * empty. Technically, this could have replaced the flush
1437 * above, but flush is much faster than draining. So flush
1438 * first, and drain to make sure we have no frames in the
1439 * transport anymore.
1440 * If a station still had frames on the shared queues, it is
1441 * already marked as draining, so to complete the draining, we
1442 * just need to wait until the transport is empty.
1444 iwl_trans_wait_tx_queue_empty(mvm
->trans
, tfd_msk
);
1447 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1449 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1450 * We assume here that all the packets sent to the OFFCHANNEL
1451 * queue are sent in ROC session.
1453 flush_work(&mvm
->roc_done_wk
);
1456 * By now, all the AC queues are empty. The AGG queues are
1457 * empty too. We already got all the Tx responses for all the
1458 * packets in the queues. The drain work can have been
1459 * triggered. Flush it.
1461 flush_work(&mvm
->sta_drained_wk
);
1465 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
1466 struct ieee80211_vif
*vif
)
1468 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1469 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1471 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1473 mutex_lock(&mvm
->mutex
);
1475 if (mvm
->bf_allowed_vif
== mvmvif
) {
1476 mvm
->bf_allowed_vif
= NULL
;
1477 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1478 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1481 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
1484 * For AP/GO interface, the tear down of the resources allocated to the
1485 * interface is be handled as part of the stop_ap flow.
1487 if (vif
->type
== NL80211_IFTYPE_AP
||
1488 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1489 #ifdef CONFIG_NL80211_TESTMODE
1490 if (vif
== mvm
->noa_vif
) {
1491 mvm
->noa_vif
= NULL
;
1492 mvm
->noa_duration
= 0;
1495 iwl_mvm_dealloc_bcast_sta(mvm
, vif
);
1499 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1500 mvm
->p2p_device_vif
= NULL
;
1501 iwl_mvm_rm_bcast_sta(mvm
, vif
);
1502 iwl_mvm_binding_remove_vif(mvm
, vif
);
1503 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1504 mvmvif
->phy_ctxt
= NULL
;
1507 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1510 iwl_mvm_power_update_mac(mvm
);
1511 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1514 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1515 mutex_unlock(&mvm
->mutex
);
1518 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
1523 struct iwl_mvm_mc_iter_data
{
1524 struct iwl_mvm
*mvm
;
1528 static void iwl_mvm_mc_iface_iterator(void *_data
, u8
*mac
,
1529 struct ieee80211_vif
*vif
)
1531 struct iwl_mvm_mc_iter_data
*data
= _data
;
1532 struct iwl_mvm
*mvm
= data
->mvm
;
1533 struct iwl_mcast_filter_cmd
*cmd
= mvm
->mcast_filter_cmd
;
1536 /* if we don't have free ports, mcast frames will be dropped */
1537 if (WARN_ON_ONCE(data
->port_id
>= MAX_PORT_ID_NUM
))
1540 if (vif
->type
!= NL80211_IFTYPE_STATION
||
1541 !vif
->bss_conf
.assoc
)
1544 cmd
->port_id
= data
->port_id
++;
1545 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
1546 len
= roundup(sizeof(*cmd
) + cmd
->count
* ETH_ALEN
, 4);
1548 ret
= iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_ASYNC
, len
, cmd
);
1550 IWL_ERR(mvm
, "mcast filter cmd error. ret=%d\n", ret
);
1553 static void iwl_mvm_recalc_multicast(struct iwl_mvm
*mvm
)
1555 struct iwl_mvm_mc_iter_data iter_data
= {
1559 lockdep_assert_held(&mvm
->mutex
);
1561 if (WARN_ON_ONCE(!mvm
->mcast_filter_cmd
))
1564 ieee80211_iterate_active_interfaces_atomic(
1565 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1566 iwl_mvm_mc_iface_iterator
, &iter_data
);
1569 static u64
iwl_mvm_prepare_multicast(struct ieee80211_hw
*hw
,
1570 struct netdev_hw_addr_list
*mc_list
)
1572 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1573 struct iwl_mcast_filter_cmd
*cmd
;
1574 struct netdev_hw_addr
*addr
;
1579 addr_count
= netdev_hw_addr_list_count(mc_list
);
1580 pass_all
= addr_count
> MAX_MCAST_FILTERING_ADDRESSES
||
1581 IWL_MVM_FW_MCAST_FILTER_PASS_ALL
;
1585 len
= roundup(sizeof(*cmd
) + addr_count
* ETH_ALEN
, 4);
1586 cmd
= kzalloc(len
, GFP_ATOMIC
);
1592 return (u64
)(unsigned long)cmd
;
1595 netdev_hw_addr_list_for_each(addr
, mc_list
) {
1596 IWL_DEBUG_MAC80211(mvm
, "mcast addr (%d): %pM\n",
1597 cmd
->count
, addr
->addr
);
1598 memcpy(&cmd
->addr_list
[cmd
->count
* ETH_ALEN
],
1599 addr
->addr
, ETH_ALEN
);
1603 return (u64
)(unsigned long)cmd
;
1606 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
1607 unsigned int changed_flags
,
1608 unsigned int *total_flags
,
1611 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1612 struct iwl_mcast_filter_cmd
*cmd
= (void *)(unsigned long)multicast
;
1614 mutex_lock(&mvm
->mutex
);
1616 /* replace previous configuration */
1617 kfree(mvm
->mcast_filter_cmd
);
1618 mvm
->mcast_filter_cmd
= cmd
;
1623 iwl_mvm_recalc_multicast(mvm
);
1625 mutex_unlock(&mvm
->mutex
);
1629 static void iwl_mvm_config_iface_filter(struct ieee80211_hw
*hw
,
1630 struct ieee80211_vif
*vif
,
1631 unsigned int filter_flags
,
1632 unsigned int changed_flags
)
1634 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1636 /* We support only filter for probe requests */
1637 if (!(changed_flags
& FIF_PROBE_REQ
))
1640 /* Supported only for p2p client interfaces */
1641 if (vif
->type
!= NL80211_IFTYPE_STATION
|| !vif
->bss_conf
.assoc
||
1645 mutex_lock(&mvm
->mutex
);
1646 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
1647 mutex_unlock(&mvm
->mutex
);
1650 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1651 struct iwl_bcast_iter_data
{
1652 struct iwl_mvm
*mvm
;
1653 struct iwl_bcast_filter_cmd
*cmd
;
1658 iwl_mvm_set_bcast_filter(struct ieee80211_vif
*vif
,
1659 const struct iwl_fw_bcast_filter
*in_filter
,
1660 struct iwl_fw_bcast_filter
*out_filter
)
1662 struct iwl_fw_bcast_filter_attr
*attr
;
1665 memcpy(out_filter
, in_filter
, sizeof(*out_filter
));
1667 for (i
= 0; i
< ARRAY_SIZE(out_filter
->attrs
); i
++) {
1668 attr
= &out_filter
->attrs
[i
];
1673 switch (attr
->reserved1
) {
1674 case cpu_to_le16(BC_FILTER_MAGIC_IP
):
1675 if (vif
->bss_conf
.arp_addr_cnt
!= 1) {
1680 attr
->val
= vif
->bss_conf
.arp_addr_list
[0];
1682 case cpu_to_le16(BC_FILTER_MAGIC_MAC
):
1683 attr
->val
= *(__be32
*)&vif
->addr
[2];
1688 attr
->reserved1
= 0;
1689 out_filter
->num_attrs
++;
1693 static void iwl_mvm_bcast_filter_iterator(void *_data
, u8
*mac
,
1694 struct ieee80211_vif
*vif
)
1696 struct iwl_bcast_iter_data
*data
= _data
;
1697 struct iwl_mvm
*mvm
= data
->mvm
;
1698 struct iwl_bcast_filter_cmd
*cmd
= data
->cmd
;
1699 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1700 struct iwl_fw_bcast_mac
*bcast_mac
;
1703 if (WARN_ON(mvmvif
->id
>= ARRAY_SIZE(cmd
->macs
)))
1706 bcast_mac
= &cmd
->macs
[mvmvif
->id
];
1709 * enable filtering only for associated stations, but not for P2P
1712 if (vif
->type
!= NL80211_IFTYPE_STATION
|| vif
->p2p
||
1713 !vif
->bss_conf
.assoc
)
1716 bcast_mac
->default_discard
= 1;
1718 /* copy all configured filters */
1719 for (i
= 0; mvm
->bcast_filters
[i
].attrs
[0].mask
; i
++) {
1721 * Make sure we don't exceed our filters limit.
1722 * if there is still a valid filter to be configured,
1723 * be on the safe side and just allow bcast for this mac.
1725 if (WARN_ON_ONCE(data
->current_filter
>=
1726 ARRAY_SIZE(cmd
->filters
))) {
1727 bcast_mac
->default_discard
= 0;
1728 bcast_mac
->attached_filters
= 0;
1732 iwl_mvm_set_bcast_filter(vif
,
1733 &mvm
->bcast_filters
[i
],
1734 &cmd
->filters
[data
->current_filter
]);
1736 /* skip current filter if it contains no attributes */
1737 if (!cmd
->filters
[data
->current_filter
].num_attrs
)
1740 /* attach the filter to current mac */
1741 bcast_mac
->attached_filters
|=
1742 cpu_to_le16(BIT(data
->current_filter
));
1744 data
->current_filter
++;
1748 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm
*mvm
,
1749 struct iwl_bcast_filter_cmd
*cmd
)
1751 struct iwl_bcast_iter_data iter_data
= {
1756 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL
)
1759 memset(cmd
, 0, sizeof(*cmd
));
1760 cmd
->max_bcast_filters
= ARRAY_SIZE(cmd
->filters
);
1761 cmd
->max_macs
= ARRAY_SIZE(cmd
->macs
);
1763 #ifdef CONFIG_IWLWIFI_DEBUGFS
1764 /* use debugfs filters/macs if override is configured */
1765 if (mvm
->dbgfs_bcast_filtering
.override
) {
1766 memcpy(cmd
->filters
, &mvm
->dbgfs_bcast_filtering
.cmd
.filters
,
1767 sizeof(cmd
->filters
));
1768 memcpy(cmd
->macs
, &mvm
->dbgfs_bcast_filtering
.cmd
.macs
,
1774 /* if no filters are configured, do nothing */
1775 if (!mvm
->bcast_filters
)
1778 /* configure and attach these filters for each associated sta vif */
1779 ieee80211_iterate_active_interfaces(
1780 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1781 iwl_mvm_bcast_filter_iterator
, &iter_data
);
1786 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
)
1788 struct iwl_bcast_filter_cmd cmd
;
1790 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BCAST_FILTERING
))
1793 if (!iwl_mvm_bcast_filter_build_cmd(mvm
, &cmd
))
1796 return iwl_mvm_send_cmd_pdu(mvm
, BCAST_FILTER_CMD
, 0,
1800 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
)
1806 static int iwl_mvm_update_mu_groups(struct iwl_mvm
*mvm
,
1807 struct ieee80211_vif
*vif
)
1809 struct iwl_mu_group_mgmt_cmd cmd
= {};
1811 memcpy(cmd
.membership_status
, vif
->bss_conf
.mu_group
.membership
,
1812 WLAN_MEMBERSHIP_LEN
);
1813 memcpy(cmd
.user_position
, vif
->bss_conf
.mu_group
.position
,
1814 WLAN_USER_POSITION_LEN
);
1816 return iwl_mvm_send_cmd_pdu(mvm
,
1817 WIDE_ID(DATA_PATH_GROUP
,
1818 UPDATE_MU_GROUPS_CMD
),
1819 0, sizeof(cmd
), &cmd
);
1822 static void iwl_mvm_mu_mimo_iface_iterator(void *_data
, u8
*mac
,
1823 struct ieee80211_vif
*vif
)
1825 if (vif
->mu_mimo_owner
) {
1826 struct iwl_mu_group_mgmt_notif
*notif
= _data
;
1829 * MU-MIMO Group Id action frame is little endian. We treat
1830 * the data received from firmware as if it came from the
1831 * action frame, so no conversion is needed.
1833 ieee80211_update_mu_groups(vif
,
1834 (u8
*)¬if
->membership_status
,
1835 (u8
*)¬if
->user_position
);
1839 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm
*mvm
,
1840 struct iwl_rx_cmd_buffer
*rxb
)
1842 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
1843 struct iwl_mu_group_mgmt_notif
*notif
= (void *)pkt
->data
;
1845 ieee80211_iterate_active_interfaces_atomic(
1846 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1847 iwl_mvm_mu_mimo_iface_iterator
, notif
);
1850 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
1851 struct ieee80211_vif
*vif
,
1852 struct ieee80211_bss_conf
*bss_conf
,
1855 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1859 * Re-calculate the tsf id, as the master-slave relations depend on the
1860 * beacon interval, which was not known when the station interface was
1863 if (changes
& BSS_CHANGED_ASSOC
&& bss_conf
->assoc
)
1864 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1866 if (changes
& BSS_CHANGED_ASSOC
&& !bss_conf
->assoc
&&
1868 iwl_mvm_send_lqm_cmd(vif
, LQM_CMD_OPERATION_STOP_MEASUREMENT
,
1872 * If we're not associated yet, take the (new) BSSID before associating
1873 * so the firmware knows. If we're already associated, then use the old
1874 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1875 * branch for disassociation below.
1877 if (changes
& BSS_CHANGED_BSSID
&& !mvmvif
->associated
)
1878 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1880 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, mvmvif
->bssid
);
1882 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1884 /* after sending it once, adopt mac80211 data */
1885 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1886 mvmvif
->associated
= bss_conf
->assoc
;
1888 if (changes
& BSS_CHANGED_ASSOC
) {
1889 if (bss_conf
->assoc
) {
1890 /* clear statistics to get clean beacon counter */
1891 iwl_mvm_request_statistics(mvm
, true);
1892 memset(&mvmvif
->beacon_stats
, 0,
1893 sizeof(mvmvif
->beacon_stats
));
1895 /* add quota for this interface */
1896 ret
= iwl_mvm_update_quotas(mvm
, true, NULL
);
1898 IWL_ERR(mvm
, "failed to update quotas\n");
1902 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
1905 * If we're restarting then the firmware will
1906 * obviously have lost synchronisation with
1907 * the AP. It will attempt to synchronise by
1908 * itself, but we can make it more reliable by
1909 * scheduling a session protection time event.
1911 * The firmware needs to receive a beacon to
1912 * catch up with synchronisation, use 110% of
1913 * the beacon interval.
1915 * Set a large maximum delay to allow for more
1916 * than a single interface.
1918 u32 dur
= (11 * vif
->bss_conf
.beacon_int
) / 10;
1919 iwl_mvm_protect_session(mvm
, vif
, dur
, dur
,
1923 iwl_mvm_sf_update(mvm
, vif
, false);
1924 iwl_mvm_power_vif_assoc(mvm
, vif
);
1926 iwl_mvm_ref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1927 iwl_mvm_update_smps(mvm
, vif
,
1928 IWL_MVM_SMPS_REQ_PROT
,
1929 IEEE80211_SMPS_DYNAMIC
);
1931 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_STATION_COUNT
) {
1933 * If update fails - SF might be running in associated
1934 * mode while disassociated - which is forbidden.
1936 WARN_ONCE(iwl_mvm_sf_update(mvm
, vif
, false),
1937 "Failed to update SF upon disassociation\n");
1939 /* remove AP station now that the MAC is unassoc */
1940 ret
= iwl_mvm_rm_sta_id(mvm
, vif
, mvmvif
->ap_sta_id
);
1942 IWL_ERR(mvm
, "failed to remove AP station\n");
1944 if (mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
1945 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1946 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
1947 /* remove quota for this interface */
1948 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
1950 IWL_ERR(mvm
, "failed to update quotas\n");
1953 iwl_mvm_unref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1955 /* this will take the cleared BSSID from bss_conf */
1956 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
1959 "failed to update MAC %pM (clear after unassoc)\n",
1964 * The firmware tracks the MU-MIMO group on its own.
1965 * However, on HW restart we should restore this data.
1967 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
1968 (changes
& BSS_CHANGED_MU_GROUPS
) && vif
->mu_mimo_owner
) {
1969 ret
= iwl_mvm_update_mu_groups(mvm
, vif
);
1972 "failed to update VHT MU_MIMO groups\n");
1975 iwl_mvm_recalc_multicast(mvm
);
1976 iwl_mvm_configure_bcast_filter(mvm
);
1978 /* reset rssi values */
1979 mvmvif
->bf_data
.ave_beacon_signal
= 0;
1981 iwl_mvm_bt_coex_vif_change(mvm
);
1982 iwl_mvm_update_smps(mvm
, vif
, IWL_MVM_SMPS_REQ_TT
,
1983 IEEE80211_SMPS_AUTOMATIC
);
1984 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
1985 IWL_UCODE_TLV_CAPA_UMAC_SCAN
))
1986 iwl_mvm_config_scan(mvm
);
1987 } else if (changes
& BSS_CHANGED_BEACON_INFO
) {
1989 * We received a beacon _after_ association so
1990 * remove the session protection.
1992 iwl_mvm_remove_time_event(mvm
, mvmvif
,
1993 &mvmvif
->time_event_data
);
1996 if (changes
& BSS_CHANGED_BEACON_INFO
) {
1997 iwl_mvm_sf_update(mvm
, vif
, false);
1998 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
2001 if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_P2P_PS
| BSS_CHANGED_QOS
|
2003 * Send power command on every beacon change,
2004 * because we may have not enabled beacon abort yet.
2006 BSS_CHANGED_BEACON_INFO
)) {
2007 ret
= iwl_mvm_power_update_mac(mvm
);
2009 IWL_ERR(mvm
, "failed to update power mode\n");
2012 if (changes
& BSS_CHANGED_TXPOWER
) {
2013 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
2015 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
2018 if (changes
& BSS_CHANGED_CQM
) {
2019 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed\n");
2020 /* reset cqm events tracking */
2021 mvmvif
->bf_data
.last_cqm_event
= 0;
2022 if (mvmvif
->bf_data
.bf_enabled
) {
2023 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
2026 "failed to update CQM thresholds\n");
2030 if (changes
& BSS_CHANGED_ARP_FILTER
) {
2031 IWL_DEBUG_MAC80211(mvm
, "arp filter changed\n");
2032 iwl_mvm_configure_bcast_filter(mvm
);
2036 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw
*hw
,
2037 struct ieee80211_vif
*vif
)
2039 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2040 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2044 * iwl_mvm_mac_ctxt_add() might read directly from the device
2045 * (the system time), so make sure it is available.
2047 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_START_AP
);
2051 mutex_lock(&mvm
->mutex
);
2053 /* Send the beacon template */
2054 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
2059 * Re-calculate the tsf id, as the master-slave relations depend on the
2060 * beacon interval, which was not known when the AP interface was added.
2062 if (vif
->type
== NL80211_IFTYPE_AP
)
2063 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
2065 mvmvif
->ap_assoc_sta_count
= 0;
2067 /* Add the mac context */
2068 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
2072 /* Perform the binding */
2073 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2077 /* Send the bcast station. At this stage the TBTT and DTIM time events
2078 * are added and applied to the scheduler */
2079 ret
= iwl_mvm_send_add_bcast_sta(mvm
, vif
);
2083 /* must be set before quota calculations */
2084 mvmvif
->ap_ibss_active
= true;
2086 /* power updated needs to be done before quotas */
2087 iwl_mvm_power_update_mac(mvm
);
2089 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
2091 goto out_quota_failed
;
2093 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2094 if (vif
->p2p
&& mvm
->p2p_device_vif
)
2095 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
2097 iwl_mvm_ref(mvm
, IWL_MVM_REF_AP_IBSS
);
2099 iwl_mvm_bt_coex_vif_change(mvm
);
2101 /* we don't support TDLS during DCM */
2102 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2103 iwl_mvm_teardown_tdls_peers(mvm
);
2108 iwl_mvm_power_update_mac(mvm
);
2109 mvmvif
->ap_ibss_active
= false;
2110 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
2112 iwl_mvm_binding_remove_vif(mvm
, vif
);
2114 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
2116 mutex_unlock(&mvm
->mutex
);
2117 iwl_mvm_unref(mvm
, IWL_MVM_REF_START_AP
);
2121 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw
*hw
,
2122 struct ieee80211_vif
*vif
)
2124 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2125 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2127 iwl_mvm_prepare_mac_removal(mvm
, vif
);
2129 mutex_lock(&mvm
->mutex
);
2131 /* Handle AP stop while in CSA */
2132 if (rcu_access_pointer(mvm
->csa_vif
) == vif
) {
2133 iwl_mvm_remove_time_event(mvm
, mvmvif
,
2134 &mvmvif
->time_event_data
);
2135 RCU_INIT_POINTER(mvm
->csa_vif
, NULL
);
2136 mvmvif
->csa_countdown
= false;
2139 if (rcu_access_pointer(mvm
->csa_tx_blocked_vif
) == vif
) {
2140 RCU_INIT_POINTER(mvm
->csa_tx_blocked_vif
, NULL
);
2141 mvm
->csa_tx_block_bcn_timeout
= 0;
2144 mvmvif
->ap_ibss_active
= false;
2145 mvm
->ap_last_beacon_gp2
= 0;
2147 iwl_mvm_bt_coex_vif_change(mvm
);
2149 iwl_mvm_unref(mvm
, IWL_MVM_REF_AP_IBSS
);
2151 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2152 if (vif
->p2p
&& mvm
->p2p_device_vif
)
2153 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
2155 iwl_mvm_update_quotas(mvm
, false, NULL
);
2156 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
2157 iwl_mvm_binding_remove_vif(mvm
, vif
);
2159 iwl_mvm_power_update_mac(mvm
);
2161 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
2163 mutex_unlock(&mvm
->mutex
);
2167 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm
*mvm
,
2168 struct ieee80211_vif
*vif
,
2169 struct ieee80211_bss_conf
*bss_conf
,
2172 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2174 /* Changes will be applied when the AP/IBSS is started */
2175 if (!mvmvif
->ap_ibss_active
)
2178 if (changes
& (BSS_CHANGED_ERP_CTS_PROT
| BSS_CHANGED_HT
|
2179 BSS_CHANGED_BANDWIDTH
| BSS_CHANGED_QOS
) &&
2180 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
))
2181 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
2183 /* Need to send a new beacon template to the FW */
2184 if (changes
& BSS_CHANGED_BEACON
&&
2185 iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
2186 IWL_WARN(mvm
, "Failed updating beacon data\n");
2188 if (changes
& BSS_CHANGED_TXPOWER
) {
2189 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
2191 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
2195 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
2196 struct ieee80211_vif
*vif
,
2197 struct ieee80211_bss_conf
*bss_conf
,
2200 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2203 * iwl_mvm_bss_info_changed_station() might call
2204 * iwl_mvm_protect_session(), which reads directly from
2205 * the device (the system time), so make sure it is available.
2207 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_BSS_CHANGED
))
2210 mutex_lock(&mvm
->mutex
);
2212 if (changes
& BSS_CHANGED_IDLE
&& !bss_conf
->idle
)
2213 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_SCHED
, true);
2215 switch (vif
->type
) {
2216 case NL80211_IFTYPE_STATION
:
2217 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
2219 case NL80211_IFTYPE_AP
:
2220 case NL80211_IFTYPE_ADHOC
:
2221 iwl_mvm_bss_info_changed_ap_ibss(mvm
, vif
, bss_conf
, changes
);
2224 /* shouldn't happen */
2228 mutex_unlock(&mvm
->mutex
);
2229 iwl_mvm_unref(mvm
, IWL_MVM_REF_BSS_CHANGED
);
2232 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
2233 struct ieee80211_vif
*vif
,
2234 struct ieee80211_scan_request
*hw_req
)
2236 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2239 if (hw_req
->req
.n_channels
== 0 ||
2240 hw_req
->req
.n_channels
> mvm
->fw
->ucode_capa
.n_scan_channels
)
2243 mutex_lock(&mvm
->mutex
);
2244 ret
= iwl_mvm_reg_scan_start(mvm
, vif
, &hw_req
->req
, &hw_req
->ies
);
2245 mutex_unlock(&mvm
->mutex
);
2250 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
2251 struct ieee80211_vif
*vif
)
2253 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2255 mutex_lock(&mvm
->mutex
);
2257 /* Due to a race condition, it's possible that mac80211 asks
2258 * us to stop a hw_scan when it's already stopped. This can
2259 * happen, for instance, if we stopped the scan ourselves,
2260 * called ieee80211_scan_completed() and the userspace called
2261 * cancel scan scan before ieee80211_scan_work() could run.
2262 * To handle that, simply return if the scan is not running.
2264 if (mvm
->scan_status
& IWL_MVM_SCAN_REGULAR
)
2265 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_REGULAR
, true);
2267 mutex_unlock(&mvm
->mutex
);
2271 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
2272 struct ieee80211_sta
*sta
, u16 tids
,
2274 enum ieee80211_frame_release_type reason
,
2277 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2279 /* Called when we need to transmit (a) frame(s) from mac80211 */
2281 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2282 tids
, more_data
, false);
2286 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw
*hw
,
2287 struct ieee80211_sta
*sta
, u16 tids
,
2289 enum ieee80211_frame_release_type reason
,
2292 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2294 /* Called when we need to transmit (a) frame(s) from agg queue */
2296 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2297 tids
, more_data
, true);
2300 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
2301 struct ieee80211_vif
*vif
,
2302 enum sta_notify_cmd cmd
,
2303 struct ieee80211_sta
*sta
)
2305 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2306 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2307 unsigned long txqs
= 0, tids
= 0;
2310 spin_lock_bh(&mvmsta
->lock
);
2311 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
2312 struct iwl_mvm_tid_data
*tid_data
= &mvmsta
->tid_data
[tid
];
2314 if (tid_data
->state
!= IWL_AGG_ON
&&
2315 tid_data
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
2318 __set_bit(tid_data
->txq_id
, &txqs
);
2320 if (iwl_mvm_tid_queued(tid_data
) == 0)
2323 __set_bit(tid
, &tids
);
2327 case STA_NOTIFY_SLEEP
:
2328 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
2329 ieee80211_sta_block_awake(hw
, sta
, true);
2331 for_each_set_bit(tid
, &tids
, IWL_MAX_TID_COUNT
)
2332 ieee80211_sta_set_buffered(sta
, tid
, true);
2335 iwl_trans_freeze_txq_timer(mvm
->trans
, txqs
, true);
2337 * The fw updates the STA to be asleep. Tx packets on the Tx
2338 * queues to this station will not be transmitted. The fw will
2339 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2342 case STA_NOTIFY_AWAKE
:
2343 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
))
2347 iwl_trans_freeze_txq_timer(mvm
->trans
, txqs
, false);
2348 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
2353 spin_unlock_bh(&mvmsta
->lock
);
2356 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw
*hw
,
2357 struct ieee80211_vif
*vif
,
2358 struct ieee80211_sta
*sta
)
2360 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2361 struct iwl_mvm_sta
*mvm_sta
= iwl_mvm_sta_from_mac80211(sta
);
2364 * This is called before mac80211 does RCU synchronisation,
2365 * so here we already invalidate our internal RCU-protected
2366 * station pointer. The rest of the code will thus no longer
2367 * be able to find the station this way, and we don't rely
2368 * on further RCU synchronisation after the sta_state()
2369 * callback deleted the station.
2371 mutex_lock(&mvm
->mutex
);
2372 if (sta
== rcu_access_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
]))
2373 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
],
2376 mutex_unlock(&mvm
->mutex
);
2379 static void iwl_mvm_check_uapsd(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
2382 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT
))
2385 if (vif
->p2p
&& !iwl_mvm_is_p2p_scm_uapsd_supported(mvm
)) {
2386 vif
->driver_flags
&= ~IEEE80211_VIF_SUPPORTS_UAPSD
;
2391 (iwlwifi_mod_params
.uapsd_disable
& IWL_DISABLE_UAPSD_BSS
)) {
2392 vif
->driver_flags
&= ~IEEE80211_VIF_SUPPORTS_UAPSD
;
2396 vif
->driver_flags
|= IEEE80211_VIF_SUPPORTS_UAPSD
;
2400 iwl_mvm_tdls_check_trigger(struct iwl_mvm
*mvm
,
2401 struct ieee80211_vif
*vif
, u8
*peer_addr
,
2402 enum nl80211_tdls_operation action
)
2404 struct iwl_fw_dbg_trigger_tlv
*trig
;
2405 struct iwl_fw_dbg_trigger_tdls
*tdls_trig
;
2407 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_TDLS
))
2410 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_TDLS
);
2411 tdls_trig
= (void *)trig
->data
;
2412 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
2415 if (!(tdls_trig
->action_bitmap
& BIT(action
)))
2418 if (tdls_trig
->peer_mode
&&
2419 memcmp(tdls_trig
->peer
, peer_addr
, ETH_ALEN
) != 0)
2422 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
2423 "TDLS event occurred, peer %pM, action %d",
2427 static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm
*mvm
,
2428 struct iwl_mvm_sta
*mvm_sta
)
2430 struct iwl_mvm_tid_data
*tid_data
;
2431 struct sk_buff
*skb
;
2434 spin_lock_bh(&mvm_sta
->lock
);
2435 for (i
= 0; i
<= IWL_MAX_TID_COUNT
; i
++) {
2436 tid_data
= &mvm_sta
->tid_data
[i
];
2437 while ((skb
= __skb_dequeue(&tid_data
->deferred_tx_frames
)))
2438 ieee80211_free_txskb(mvm
->hw
, skb
);
2440 spin_unlock_bh(&mvm_sta
->lock
);
2443 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
2444 struct ieee80211_vif
*vif
,
2445 struct ieee80211_sta
*sta
,
2446 enum ieee80211_sta_state old_state
,
2447 enum ieee80211_sta_state new_state
)
2449 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2450 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2453 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
2454 sta
->addr
, old_state
, new_state
);
2456 /* this would be a mac80211 bug ... but don't crash */
2457 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
2460 /* if a STA is being removed, reuse its ID */
2461 flush_work(&mvm
->sta_drained_wk
);
2464 * If we are in a STA removal flow and in DQA mode:
2466 * This is after the sync_rcu part, so the queues have already been
2467 * flushed. No more TXs on their way in mac80211's path, and no more in
2469 * Also, we won't be getting any new TX frames for this station.
2470 * What we might have are deferred TX frames that need to be taken care
2473 * Drop any still-queued deferred-frame before removing the STA, and
2474 * make sure the worker is no longer handling frames for this STA.
2476 if (old_state
== IEEE80211_STA_NONE
&&
2477 new_state
== IEEE80211_STA_NOTEXIST
&&
2478 iwl_mvm_is_dqa_supported(mvm
)) {
2479 struct iwl_mvm_sta
*mvm_sta
= iwl_mvm_sta_from_mac80211(sta
);
2481 iwl_mvm_purge_deferred_tx_frames(mvm
, mvm_sta
);
2482 flush_work(&mvm
->add_stream_wk
);
2485 * No need to make sure deferred TX indication is off since the
2486 * worker will already remove it if it was on
2490 mutex_lock(&mvm
->mutex
);
2491 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2492 new_state
== IEEE80211_STA_NONE
) {
2494 * Firmware bug - it'll crash if the beacon interval is less
2495 * than 16. We can't avoid connecting at all, so refuse the
2496 * station state change, this will cause mac80211 to abandon
2497 * attempts to connect to this AP, and eventually wpa_s will
2498 * blacklist the AP...
2500 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2501 vif
->bss_conf
.beacon_int
< 16) {
2503 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2504 sta
->addr
, vif
->bss_conf
.beacon_int
);
2511 iwl_mvm_tdls_sta_count(mvm
, NULL
) ==
2512 IWL_MVM_TDLS_STA_COUNT
||
2513 iwl_mvm_phy_ctx_count(mvm
) > 1)) {
2514 IWL_DEBUG_MAC80211(mvm
, "refusing TDLS sta\n");
2519 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
2520 if (sta
->tdls
&& ret
== 0) {
2521 iwl_mvm_recalc_tdls_state(mvm
, vif
, true);
2522 iwl_mvm_tdls_check_trigger(mvm
, vif
, sta
->addr
,
2523 NL80211_TDLS_SETUP
);
2525 } else if (old_state
== IEEE80211_STA_NONE
&&
2526 new_state
== IEEE80211_STA_AUTH
) {
2528 * EBS may be disabled due to previous failures reported by FW.
2529 * Reset EBS status here assuming environment has been changed.
2531 mvm
->last_ebs_successful
= true;
2532 iwl_mvm_check_uapsd(mvm
, vif
, sta
->addr
);
2534 } else if (old_state
== IEEE80211_STA_AUTH
&&
2535 new_state
== IEEE80211_STA_ASSOC
) {
2536 if (vif
->type
== NL80211_IFTYPE_AP
) {
2537 mvmvif
->ap_assoc_sta_count
++;
2538 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2540 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
2542 iwl_mvm_rs_rate_init(mvm
, sta
,
2543 mvmvif
->phy_ctxt
->channel
->band
,
2545 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2546 new_state
== IEEE80211_STA_AUTHORIZED
) {
2548 /* we don't support TDLS during DCM */
2549 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2550 iwl_mvm_teardown_tdls_peers(mvm
);
2553 iwl_mvm_tdls_check_trigger(mvm
, vif
, sta
->addr
,
2554 NL80211_TDLS_ENABLE_LINK
);
2556 /* enable beacon filtering */
2557 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
2559 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
2560 new_state
== IEEE80211_STA_ASSOC
) {
2561 /* disable beacon filtering */
2562 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
, 0));
2564 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2565 new_state
== IEEE80211_STA_AUTH
) {
2566 if (vif
->type
== NL80211_IFTYPE_AP
) {
2567 mvmvif
->ap_assoc_sta_count
--;
2568 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2571 } else if (old_state
== IEEE80211_STA_AUTH
&&
2572 new_state
== IEEE80211_STA_NONE
) {
2574 } else if (old_state
== IEEE80211_STA_NONE
&&
2575 new_state
== IEEE80211_STA_NOTEXIST
) {
2576 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
2578 iwl_mvm_recalc_tdls_state(mvm
, vif
, false);
2579 iwl_mvm_tdls_check_trigger(mvm
, vif
, sta
->addr
,
2580 NL80211_TDLS_DISABLE_LINK
);
2586 mutex_unlock(&mvm
->mutex
);
2588 if (sta
->tdls
&& ret
== 0) {
2589 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2590 new_state
== IEEE80211_STA_NONE
)
2591 ieee80211_reserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2592 else if (old_state
== IEEE80211_STA_NONE
&&
2593 new_state
== IEEE80211_STA_NOTEXIST
)
2594 ieee80211_unreserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2600 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
2602 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2604 mvm
->rts_threshold
= value
;
2609 static void iwl_mvm_sta_rc_update(struct ieee80211_hw
*hw
,
2610 struct ieee80211_vif
*vif
,
2611 struct ieee80211_sta
*sta
, u32 changed
)
2613 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2615 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2616 changed
& IEEE80211_RC_NSS_CHANGED
)
2617 iwl_mvm_sf_update(mvm
, vif
, false);
2620 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
2621 struct ieee80211_vif
*vif
, u16 ac
,
2622 const struct ieee80211_tx_queue_params
*params
)
2624 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2625 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2627 mvmvif
->queue_params
[ac
] = *params
;
2630 * No need to update right away, we'll get BSS_CHANGED_QOS
2631 * The exception is P2P_DEVICE interface which needs immediate update.
2633 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
2636 mutex_lock(&mvm
->mutex
);
2637 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2638 mutex_unlock(&mvm
->mutex
);
2644 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
2645 struct ieee80211_vif
*vif
)
2647 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2648 u32 duration
= IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
;
2649 u32 min_duration
= IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
;
2651 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
2655 * iwl_mvm_protect_session() reads directly from the device
2656 * (the system time), so make sure it is available.
2658 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PREPARE_TX
))
2661 mutex_lock(&mvm
->mutex
);
2662 /* Try really hard to protect the session and hear a beacon */
2663 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
, 500, false);
2664 mutex_unlock(&mvm
->mutex
);
2666 iwl_mvm_unref(mvm
, IWL_MVM_REF_PREPARE_TX
);
2669 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw
*hw
,
2670 struct ieee80211_vif
*vif
,
2671 struct cfg80211_sched_scan_request
*req
,
2672 struct ieee80211_scan_ies
*ies
)
2674 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2678 mutex_lock(&mvm
->mutex
);
2680 if (!vif
->bss_conf
.idle
) {
2685 ret
= iwl_mvm_sched_scan_start(mvm
, vif
, req
, ies
, IWL_MVM_SCAN_SCHED
);
2688 mutex_unlock(&mvm
->mutex
);
2692 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw
*hw
,
2693 struct ieee80211_vif
*vif
)
2695 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2698 mutex_lock(&mvm
->mutex
);
2700 /* Due to a race condition, it's possible that mac80211 asks
2701 * us to stop a sched_scan when it's already stopped. This
2702 * can happen, for instance, if we stopped the scan ourselves,
2703 * called ieee80211_sched_scan_stopped() and the userspace called
2704 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2705 * could run. To handle this, simply return if the scan is
2708 if (!(mvm
->scan_status
& IWL_MVM_SCAN_SCHED
)) {
2709 mutex_unlock(&mvm
->mutex
);
2713 ret
= iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_SCHED
, false);
2714 mutex_unlock(&mvm
->mutex
);
2715 iwl_mvm_wait_for_async_handlers(mvm
);
2720 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
2721 enum set_key_cmd cmd
,
2722 struct ieee80211_vif
*vif
,
2723 struct ieee80211_sta
*sta
,
2724 struct ieee80211_key_conf
*key
)
2726 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2727 struct iwl_mvm_sta
*mvmsta
;
2728 struct iwl_mvm_key_pn
*ptk_pn
;
2729 int keyidx
= key
->keyidx
;
2733 if (iwlwifi_mod_params
.sw_crypto
) {
2734 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
2738 switch (key
->cipher
) {
2739 case WLAN_CIPHER_SUITE_TKIP
:
2740 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
2741 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2743 case WLAN_CIPHER_SUITE_CCMP
:
2744 case WLAN_CIPHER_SUITE_GCMP
:
2745 case WLAN_CIPHER_SUITE_GCMP_256
:
2746 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2748 case WLAN_CIPHER_SUITE_AES_CMAC
:
2749 WARN_ON_ONCE(!ieee80211_hw_check(hw
, MFP_CAPABLE
));
2751 case WLAN_CIPHER_SUITE_WEP40
:
2752 case WLAN_CIPHER_SUITE_WEP104
:
2753 /* For non-client mode, only use WEP keys for TX as we probably
2754 * don't have a station yet anyway and would then have to keep
2755 * track of the keys, linking them to each of the clients/peers
2756 * as they appear. For now, don't do that, for performance WEP
2757 * offload doesn't really matter much, but we need it for some
2758 * other offload features in client mode.
2760 if (vif
->type
!= NL80211_IFTYPE_STATION
)
2764 /* currently FW supports only one optional cipher scheme */
2765 if (hw
->n_cipher_schemes
&&
2766 hw
->cipher_schemes
->cipher
== key
->cipher
)
2767 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2772 mutex_lock(&mvm
->mutex
);
2776 if ((vif
->type
== NL80211_IFTYPE_ADHOC
||
2777 vif
->type
== NL80211_IFTYPE_AP
) && !sta
) {
2779 * GTK on AP interface is a TX-only key, return 0;
2780 * on IBSS they're per-station and because we're lazy
2781 * we don't support them for RX, so do the same.
2782 * CMAC in AP/IBSS modes must be done in software.
2784 if (key
->cipher
== WLAN_CIPHER_SUITE_AES_CMAC
)
2788 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2792 /* During FW restart, in order to restore the state as it was,
2793 * don't try to reprogram keys we previously failed for.
2795 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2796 key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2797 IWL_DEBUG_MAC80211(mvm
,
2798 "skip invalid idx key programming during restart\n");
2803 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2804 sta
&& iwl_mvm_has_new_rx_api(mvm
) &&
2805 key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
&&
2806 (key
->cipher
== WLAN_CIPHER_SUITE_CCMP
||
2807 key
->cipher
== WLAN_CIPHER_SUITE_GCMP
||
2808 key
->cipher
== WLAN_CIPHER_SUITE_GCMP_256
)) {
2809 struct ieee80211_key_seq seq
;
2812 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2813 WARN_ON(rcu_access_pointer(mvmsta
->ptk_pn
[keyidx
]));
2814 ptk_pn
= kzalloc(sizeof(*ptk_pn
) +
2815 mvm
->trans
->num_rx_queues
*
2816 sizeof(ptk_pn
->q
[0]),
2823 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
2824 ieee80211_get_key_rx_seq(key
, tid
, &seq
);
2825 for (q
= 0; q
< mvm
->trans
->num_rx_queues
; q
++)
2826 memcpy(ptk_pn
->q
[q
].pn
[tid
],
2828 IEEE80211_CCMP_PN_LEN
);
2831 rcu_assign_pointer(mvmsta
->ptk_pn
[keyidx
], ptk_pn
);
2834 /* in HW restart reuse the index, otherwise request a new one */
2835 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
2836 key_offset
= key
->hw_key_idx
;
2838 key_offset
= STA_KEY_IDX_INVALID
;
2840 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
2841 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, key_offset
);
2843 IWL_WARN(mvm
, "set key failed\n");
2845 * can't add key for RX, but we don't need it
2846 * in the device for TX so still return 0
2848 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2854 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2859 if (sta
&& iwl_mvm_has_new_rx_api(mvm
) &&
2860 key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
&&
2861 (key
->cipher
== WLAN_CIPHER_SUITE_CCMP
||
2862 key
->cipher
== WLAN_CIPHER_SUITE_GCMP
||
2863 key
->cipher
== WLAN_CIPHER_SUITE_GCMP_256
)) {
2864 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2865 ptk_pn
= rcu_dereference_protected(
2866 mvmsta
->ptk_pn
[keyidx
],
2867 lockdep_is_held(&mvm
->mutex
));
2868 RCU_INIT_POINTER(mvmsta
->ptk_pn
[keyidx
], NULL
);
2870 kfree_rcu(ptk_pn
, rcu_head
);
2873 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
2874 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
2880 mutex_unlock(&mvm
->mutex
);
2884 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2885 struct ieee80211_vif
*vif
,
2886 struct ieee80211_key_conf
*keyconf
,
2887 struct ieee80211_sta
*sta
,
2888 u32 iv32
, u16
*phase1key
)
2890 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2892 if (keyconf
->hw_key_idx
== STA_KEY_IDX_INVALID
)
2895 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
2899 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data
*notif_wait
,
2900 struct iwl_rx_packet
*pkt
, void *data
)
2902 struct iwl_mvm
*mvm
=
2903 container_of(notif_wait
, struct iwl_mvm
, notif_wait
);
2904 struct iwl_hs20_roc_res
*resp
;
2905 int resp_len
= iwl_rx_packet_payload_len(pkt
);
2906 struct iwl_mvm_time_event_data
*te_data
= data
;
2908 if (WARN_ON(pkt
->hdr
.cmd
!= HOT_SPOT_CMD
))
2911 if (WARN_ON_ONCE(resp_len
!= sizeof(*resp
))) {
2912 IWL_ERR(mvm
, "Invalid HOT_SPOT_CMD response\n");
2916 resp
= (void *)pkt
->data
;
2919 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2920 resp
->status
, resp
->event_unique_id
);
2922 te_data
->uid
= le32_to_cpu(resp
->event_unique_id
);
2923 IWL_DEBUG_TE(mvm
, "TIME_EVENT_CMD response - UID = 0x%x\n",
2926 spin_lock_bh(&mvm
->time_event_lock
);
2927 list_add_tail(&te_data
->list
, &mvm
->aux_roc_te_list
);
2928 spin_unlock_bh(&mvm
->time_event_lock
);
2933 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
2934 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
2935 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
2936 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
2937 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
2938 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm
*mvm
,
2939 struct ieee80211_channel
*channel
,
2940 struct ieee80211_vif
*vif
,
2943 int res
, time_reg
= DEVICE_SYSTEM_TIME_REG
;
2944 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2945 struct iwl_mvm_time_event_data
*te_data
= &mvmvif
->hs_time_event_data
;
2946 static const u16 time_event_response
[] = { HOT_SPOT_CMD
};
2947 struct iwl_notification_wait wait_time_event
;
2948 u32 dtim_interval
= vif
->bss_conf
.dtim_period
*
2949 vif
->bss_conf
.beacon_int
;
2951 struct iwl_hs20_roc_req aux_roc_req
= {
2952 .action
= cpu_to_le32(FW_CTXT_ACTION_ADD
),
2954 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX
, 0)),
2955 .sta_id_and_color
= cpu_to_le32(mvm
->aux_sta
.sta_id
),
2956 /* Set the channel info data */
2957 .channel_info
.band
= (channel
->band
== NL80211_BAND_2GHZ
) ?
2958 PHY_BAND_24
: PHY_BAND_5
,
2959 .channel_info
.channel
= channel
->hw_value
,
2960 .channel_info
.width
= PHY_VHT_CHANNEL_MODE20
,
2961 /* Set the time and duration */
2962 .apply_time
= cpu_to_le32(iwl_read_prph(mvm
->trans
, time_reg
)),
2965 delay
= AUX_ROC_MIN_DELAY
;
2966 req_dur
= MSEC_TO_TU(duration
);
2969 * If we are associated we want the delay time to be at least one
2970 * dtim interval so that the FW can wait until after the DTIM and
2971 * then start the time event, this will potentially allow us to
2972 * remain off-channel for the max duration.
2973 * Since we want to use almost a whole dtim interval we would also
2974 * like the delay to be for 2-3 dtim intervals, in case there are
2975 * other time events with higher priority.
2977 if (vif
->bss_conf
.assoc
) {
2978 delay
= min_t(u32
, dtim_interval
* 3, AUX_ROC_MAX_DELAY
);
2979 /* We cannot remain off-channel longer than the DTIM interval */
2980 if (dtim_interval
<= req_dur
) {
2981 req_dur
= dtim_interval
- AUX_ROC_SAFETY_BUFFER
;
2982 if (req_dur
<= AUX_ROC_MIN_DURATION
)
2983 req_dur
= dtim_interval
-
2984 AUX_ROC_MIN_SAFETY_BUFFER
;
2988 aux_roc_req
.duration
= cpu_to_le32(req_dur
);
2989 aux_roc_req
.apply_time_max_delay
= cpu_to_le32(delay
);
2992 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
2993 channel
->hw_value
, req_dur
, duration
, delay
,
2995 /* Set the node address */
2996 memcpy(aux_roc_req
.node_addr
, vif
->addr
, ETH_ALEN
);
2998 lockdep_assert_held(&mvm
->mutex
);
3000 spin_lock_bh(&mvm
->time_event_lock
);
3002 if (WARN_ON(te_data
->id
== HOT_SPOT_CMD
)) {
3003 spin_unlock_bh(&mvm
->time_event_lock
);
3008 te_data
->duration
= duration
;
3009 te_data
->id
= HOT_SPOT_CMD
;
3011 spin_unlock_bh(&mvm
->time_event_lock
);
3014 * Use a notification wait, which really just processes the
3015 * command response and doesn't wait for anything, in order
3016 * to be able to process the response and get the UID inside
3017 * the RX path. Using CMD_WANT_SKB doesn't work because it
3018 * stores the buffer and then wakes up this thread, by which
3019 * time another notification (that the time event started)
3020 * might already be processed unsuccessfully.
3022 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_time_event
,
3023 time_event_response
,
3024 ARRAY_SIZE(time_event_response
),
3025 iwl_mvm_rx_aux_roc
, te_data
);
3027 res
= iwl_mvm_send_cmd_pdu(mvm
, HOT_SPOT_CMD
, 0, sizeof(aux_roc_req
),
3031 IWL_ERR(mvm
, "Couldn't send HOT_SPOT_CMD: %d\n", res
);
3032 iwl_remove_notification(&mvm
->notif_wait
, &wait_time_event
);
3036 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3037 res
= iwl_wait_notification(&mvm
->notif_wait
, &wait_time_event
, 1);
3038 /* should never fail */
3043 spin_lock_bh(&mvm
->time_event_lock
);
3044 iwl_mvm_te_clear_data(mvm
, te_data
);
3045 spin_unlock_bh(&mvm
->time_event_lock
);
3051 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
3052 struct ieee80211_vif
*vif
,
3053 struct ieee80211_channel
*channel
,
3055 enum ieee80211_roc_type type
)
3057 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3058 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3059 struct cfg80211_chan_def chandef
;
3060 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
3063 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
3066 flush_work(&mvm
->roc_done_wk
);
3068 mutex_lock(&mvm
->mutex
);
3070 switch (vif
->type
) {
3071 case NL80211_IFTYPE_STATION
:
3072 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
3073 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT
)) {
3074 /* Use aux roc framework (HS20) */
3075 ret
= iwl_mvm_send_aux_roc_cmd(mvm
, channel
,
3079 IWL_ERR(mvm
, "hotspot not supported\n");
3082 case NL80211_IFTYPE_P2P_DEVICE
:
3086 IWL_ERR(mvm
, "vif isn't P2P_DEVICE: %d\n", vif
->type
);
3091 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
3092 phy_ctxt
= &mvm
->phy_ctxts
[i
];
3093 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
3096 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
3098 * Unbind the P2P_DEVICE from the current PHY context,
3099 * and if the PHY context is not used remove it.
3101 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
3102 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
3105 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
3107 /* Bind the P2P_DEVICE to the current PHY Context */
3108 mvmvif
->phy_ctxt
= phy_ctxt
;
3110 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3111 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
3114 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
3115 goto schedule_time_event
;
3119 /* Need to update the PHY context only if the ROC channel changed */
3120 if (channel
== mvmvif
->phy_ctxt
->channel
)
3121 goto schedule_time_event
;
3123 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
3126 * Change the PHY context configuration as it is currently referenced
3127 * only by the P2P Device MAC
3129 if (mvmvif
->phy_ctxt
->ref
== 1) {
3130 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
3136 * The PHY context is shared with other MACs. Need to remove the
3137 * P2P Device from the binding, allocate an new PHY context and
3138 * create a new binding
3140 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
3146 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
3149 IWL_ERR(mvm
, "Failed to change PHY context\n");
3153 /* Unbind the P2P_DEVICE from the current PHY context */
3154 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
3155 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
3158 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
3160 /* Bind the P2P_DEVICE to the new allocated PHY context */
3161 mvmvif
->phy_ctxt
= phy_ctxt
;
3163 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3164 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
3167 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
3170 schedule_time_event
:
3171 /* Schedule the time events */
3172 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
3175 mutex_unlock(&mvm
->mutex
);
3176 IWL_DEBUG_MAC80211(mvm
, "leave\n");
3180 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
3182 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3184 IWL_DEBUG_MAC80211(mvm
, "enter\n");
3186 mutex_lock(&mvm
->mutex
);
3187 iwl_mvm_stop_roc(mvm
);
3188 mutex_unlock(&mvm
->mutex
);
3190 IWL_DEBUG_MAC80211(mvm
, "leave\n");
3194 static int __iwl_mvm_add_chanctx(struct iwl_mvm
*mvm
,
3195 struct ieee80211_chanctx_conf
*ctx
)
3197 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3198 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
3201 lockdep_assert_held(&mvm
->mutex
);
3203 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
3205 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
3211 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
3212 ctx
->rx_chains_static
,
3213 ctx
->rx_chains_dynamic
);
3215 IWL_ERR(mvm
, "Failed to add PHY context\n");
3219 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
3220 *phy_ctxt_id
= phy_ctxt
->id
;
3225 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
3226 struct ieee80211_chanctx_conf
*ctx
)
3228 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3231 mutex_lock(&mvm
->mutex
);
3232 ret
= __iwl_mvm_add_chanctx(mvm
, ctx
);
3233 mutex_unlock(&mvm
->mutex
);
3238 static void __iwl_mvm_remove_chanctx(struct iwl_mvm
*mvm
,
3239 struct ieee80211_chanctx_conf
*ctx
)
3241 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3242 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3244 lockdep_assert_held(&mvm
->mutex
);
3246 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
3249 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
3250 struct ieee80211_chanctx_conf
*ctx
)
3252 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3254 mutex_lock(&mvm
->mutex
);
3255 __iwl_mvm_remove_chanctx(mvm
, ctx
);
3256 mutex_unlock(&mvm
->mutex
);
3259 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
3260 struct ieee80211_chanctx_conf
*ctx
,
3263 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3264 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3265 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3267 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
3268 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
3269 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
3270 IEEE80211_CHANCTX_CHANGE_RADAR
|
3271 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH
)),
3272 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3273 phy_ctxt
->ref
, changed
))
3276 mutex_lock(&mvm
->mutex
);
3277 iwl_mvm_bt_coex_vif_change(mvm
);
3278 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
3279 ctx
->rx_chains_static
,
3280 ctx
->rx_chains_dynamic
);
3281 mutex_unlock(&mvm
->mutex
);
3284 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm
*mvm
,
3285 struct ieee80211_vif
*vif
,
3286 struct ieee80211_chanctx_conf
*ctx
,
3287 bool switching_chanctx
)
3289 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3290 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3291 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3294 lockdep_assert_held(&mvm
->mutex
);
3296 mvmvif
->phy_ctxt
= phy_ctxt
;
3298 switch (vif
->type
) {
3299 case NL80211_IFTYPE_AP
:
3300 /* only needed if we're switching chanctx (i.e. during CSA) */
3301 if (switching_chanctx
) {
3302 mvmvif
->ap_ibss_active
= true;
3305 case NL80211_IFTYPE_ADHOC
:
3307 * The AP binding flow is handled as part of the start_ap flow
3308 * (in bss_info_changed), similarly for IBSS.
3312 case NL80211_IFTYPE_STATION
:
3314 case NL80211_IFTYPE_MONITOR
:
3315 /* always disable PS when a monitor interface is active */
3316 mvmvif
->ps_disabled
= true;
3323 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3328 * Power state must be updated before quotas,
3329 * otherwise fw will complain.
3331 iwl_mvm_power_update_mac(mvm
);
3333 /* Setting the quota at this stage is only required for monitor
3334 * interfaces. For the other types, the bss_info changed flow
3335 * will handle quota settings.
3337 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
3338 mvmvif
->monitor_active
= true;
3339 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
3341 goto out_remove_binding
;
3343 ret
= iwl_mvm_add_snif_sta(mvm
, vif
);
3345 goto out_remove_binding
;
3349 /* Handle binding during CSA */
3350 if (vif
->type
== NL80211_IFTYPE_AP
) {
3351 iwl_mvm_update_quotas(mvm
, false, NULL
);
3352 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
3355 if (switching_chanctx
&& vif
->type
== NL80211_IFTYPE_STATION
) {
3356 u32 duration
= 2 * vif
->bss_conf
.beacon_int
;
3358 /* iwl_mvm_protect_session() reads directly from the
3359 * device (the system time), so make sure it is
3362 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PROTECT_CSA
);
3364 goto out_remove_binding
;
3366 /* Protect the session to make sure we hear the first
3367 * beacon on the new channel.
3369 iwl_mvm_protect_session(mvm
, vif
, duration
, duration
,
3370 vif
->bss_conf
.beacon_int
/ 2,
3373 iwl_mvm_unref(mvm
, IWL_MVM_REF_PROTECT_CSA
);
3375 iwl_mvm_update_quotas(mvm
, false, NULL
);
3381 iwl_mvm_binding_remove_vif(mvm
, vif
);
3382 iwl_mvm_power_update_mac(mvm
);
3385 mvmvif
->phy_ctxt
= NULL
;
3388 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
3389 struct ieee80211_vif
*vif
,
3390 struct ieee80211_chanctx_conf
*ctx
)
3392 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3395 mutex_lock(&mvm
->mutex
);
3396 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vif
, ctx
, false);
3397 mutex_unlock(&mvm
->mutex
);
3402 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm
*mvm
,
3403 struct ieee80211_vif
*vif
,
3404 struct ieee80211_chanctx_conf
*ctx
,
3405 bool switching_chanctx
)
3407 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3408 struct ieee80211_vif
*disabled_vif
= NULL
;
3410 lockdep_assert_held(&mvm
->mutex
);
3412 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
3414 switch (vif
->type
) {
3415 case NL80211_IFTYPE_ADHOC
:
3417 case NL80211_IFTYPE_MONITOR
:
3418 mvmvif
->monitor_active
= false;
3419 mvmvif
->ps_disabled
= false;
3420 iwl_mvm_rm_snif_sta(mvm
, vif
);
3422 case NL80211_IFTYPE_AP
:
3423 /* This part is triggered only during CSA */
3424 if (!switching_chanctx
|| !mvmvif
->ap_ibss_active
)
3427 mvmvif
->csa_countdown
= false;
3429 /* Set CS bit on all the stations */
3430 iwl_mvm_modify_all_sta_disable_tx(mvm
, mvmvif
, true);
3432 /* Save blocked iface, the timeout is set on the next beacon */
3433 rcu_assign_pointer(mvm
->csa_tx_blocked_vif
, vif
);
3435 mvmvif
->ap_ibss_active
= false;
3437 case NL80211_IFTYPE_STATION
:
3438 if (!switching_chanctx
)
3443 iwl_mvm_mac_ctxt_changed(mvm
, vif
, true, NULL
);
3449 iwl_mvm_update_quotas(mvm
, false, disabled_vif
);
3450 iwl_mvm_binding_remove_vif(mvm
, vif
);
3453 mvmvif
->phy_ctxt
= NULL
;
3454 iwl_mvm_power_update_mac(mvm
);
3457 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
3458 struct ieee80211_vif
*vif
,
3459 struct ieee80211_chanctx_conf
*ctx
)
3461 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3463 mutex_lock(&mvm
->mutex
);
3464 __iwl_mvm_unassign_vif_chanctx(mvm
, vif
, ctx
, false);
3465 mutex_unlock(&mvm
->mutex
);
3469 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm
*mvm
,
3470 struct ieee80211_vif_chanctx_switch
*vifs
)
3474 mutex_lock(&mvm
->mutex
);
3475 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
3476 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].old_ctx
);
3478 ret
= __iwl_mvm_add_chanctx(mvm
, vifs
[0].new_ctx
);
3480 IWL_ERR(mvm
, "failed to add new_ctx during channel switch\n");
3484 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
3488 "failed to assign new_ctx during channel switch\n");
3492 /* we don't support TDLS during DCM - can be caused by channel switch */
3493 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
3494 iwl_mvm_teardown_tdls_peers(mvm
);
3499 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].new_ctx
);
3502 if (__iwl_mvm_add_chanctx(mvm
, vifs
[0].old_ctx
)) {
3503 IWL_ERR(mvm
, "failed to add old_ctx back after failure.\n");
3507 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3509 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3516 /* things keep failing, better restart the hw */
3517 iwl_mvm_nic_restart(mvm
, false);
3520 mutex_unlock(&mvm
->mutex
);
3526 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm
*mvm
,
3527 struct ieee80211_vif_chanctx_switch
*vifs
)
3531 mutex_lock(&mvm
->mutex
);
3532 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
3534 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
3538 "failed to assign new_ctx during channel switch\n");
3545 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3547 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3554 /* things keep failing, better restart the hw */
3555 iwl_mvm_nic_restart(mvm
, false);
3558 mutex_unlock(&mvm
->mutex
);
3563 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw
*hw
,
3564 struct ieee80211_vif_chanctx_switch
*vifs
,
3566 enum ieee80211_chanctx_switch_mode mode
)
3568 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3571 /* we only support a single-vif right now */
3576 case CHANCTX_SWMODE_SWAP_CONTEXTS
:
3577 ret
= iwl_mvm_switch_vif_chanctx_swap(mvm
, vifs
);
3579 case CHANCTX_SWMODE_REASSIGN_VIF
:
3580 ret
= iwl_mvm_switch_vif_chanctx_reassign(mvm
, vifs
);
3590 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
3591 struct ieee80211_sta
*sta
,
3594 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3595 struct iwl_mvm_sta
*mvm_sta
= iwl_mvm_sta_from_mac80211(sta
);
3597 if (!mvm_sta
|| !mvm_sta
->vif
) {
3598 IWL_ERR(mvm
, "Station is not associated to a vif\n");
3602 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
3605 #ifdef CONFIG_NL80211_TESTMODE
3606 static const struct nla_policy iwl_mvm_tm_policy
[IWL_MVM_TM_ATTR_MAX
+ 1] = {
3607 [IWL_MVM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
3608 [IWL_MVM_TM_ATTR_NOA_DURATION
] = { .type
= NLA_U32
},
3609 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
] = { .type
= NLA_U32
},
3612 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm
*mvm
,
3613 struct ieee80211_vif
*vif
,
3614 void *data
, int len
)
3616 struct nlattr
*tb
[IWL_MVM_TM_ATTR_MAX
+ 1];
3620 err
= nla_parse(tb
, IWL_MVM_TM_ATTR_MAX
, data
, len
, iwl_mvm_tm_policy
);
3624 if (!tb
[IWL_MVM_TM_ATTR_CMD
])
3627 switch (nla_get_u32(tb
[IWL_MVM_TM_ATTR_CMD
])) {
3628 case IWL_MVM_TM_CMD_SET_NOA
:
3629 if (!vif
|| vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
||
3630 !vif
->bss_conf
.enable_beacon
||
3631 !tb
[IWL_MVM_TM_ATTR_NOA_DURATION
])
3634 noa_duration
= nla_get_u32(tb
[IWL_MVM_TM_ATTR_NOA_DURATION
]);
3635 if (noa_duration
>= vif
->bss_conf
.beacon_int
)
3638 mvm
->noa_duration
= noa_duration
;
3641 return iwl_mvm_update_quotas(mvm
, false, NULL
);
3642 case IWL_MVM_TM_CMD_SET_BEACON_FILTER
:
3643 /* must be associated client vif - ignore authorized */
3644 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
||
3645 !vif
->bss_conf
.assoc
|| !vif
->bss_conf
.dtim_period
||
3646 !tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
])
3649 if (nla_get_u32(tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
]))
3650 return iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
3651 return iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3657 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw
*hw
,
3658 struct ieee80211_vif
*vif
,
3659 void *data
, int len
)
3661 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3664 mutex_lock(&mvm
->mutex
);
3665 err
= __iwl_mvm_mac_testmode_cmd(mvm
, vif
, data
, len
);
3666 mutex_unlock(&mvm
->mutex
);
3672 static void iwl_mvm_channel_switch(struct ieee80211_hw
*hw
,
3673 struct ieee80211_vif
*vif
,
3674 struct ieee80211_channel_switch
*chsw
)
3676 /* By implementing this operation, we prevent mac80211 from
3677 * starting its own channel switch timer, so that we can call
3678 * ieee80211_chswitch_done() ourselves at the right time
3679 * (which is when the absence time event starts).
3682 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw
),
3683 "dummy channel switch op\n");
3686 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw
*hw
,
3687 struct ieee80211_vif
*vif
,
3688 struct ieee80211_channel_switch
*chsw
)
3690 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3691 struct ieee80211_vif
*csa_vif
;
3692 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3696 mutex_lock(&mvm
->mutex
);
3698 mvmvif
->csa_failed
= false;
3700 IWL_DEBUG_MAC80211(mvm
, "pre CSA to freq %d\n",
3701 chsw
->chandef
.center_freq1
);
3703 iwl_fw_dbg_trigger_simple_stop(mvm
, vif
, FW_DBG_TRIGGER_CHANNEL_SWITCH
);
3705 switch (vif
->type
) {
3706 case NL80211_IFTYPE_AP
:
3708 rcu_dereference_protected(mvm
->csa_vif
,
3709 lockdep_is_held(&mvm
->mutex
));
3710 if (WARN_ONCE(csa_vif
&& csa_vif
->csa_active
,
3711 "Another CSA is already in progress")) {
3716 /* we still didn't unblock tx. prevent new CS meanwhile */
3717 if (rcu_dereference_protected(mvm
->csa_tx_blocked_vif
,
3718 lockdep_is_held(&mvm
->mutex
))) {
3723 rcu_assign_pointer(mvm
->csa_vif
, vif
);
3725 if (WARN_ONCE(mvmvif
->csa_countdown
,
3726 "Previous CSA countdown didn't complete")) {
3731 mvmvif
->csa_target_freq
= chsw
->chandef
.chan
->center_freq
;
3734 case NL80211_IFTYPE_STATION
:
3735 if (mvmvif
->lqm_active
)
3736 iwl_mvm_send_lqm_cmd(vif
,
3737 LQM_CMD_OPERATION_STOP_MEASUREMENT
,
3740 /* Schedule the time event to a bit before beacon 1,
3741 * to make sure we're in the new channel when the
3744 apply_time
= chsw
->device_timestamp
+
3745 ((vif
->bss_conf
.beacon_int
* (chsw
->count
- 1) -
3746 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT
) * 1024);
3749 iwl_mvm_csa_client_absent(mvm
, vif
);
3751 iwl_mvm_schedule_csa_period(mvm
, vif
, vif
->bss_conf
.beacon_int
,
3753 if (mvmvif
->bf_data
.bf_enabled
) {
3754 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3764 mvmvif
->ps_disabled
= true;
3766 ret
= iwl_mvm_power_update_ps(mvm
);
3770 /* we won't be on this channel any longer */
3771 iwl_mvm_teardown_tdls_peers(mvm
);
3774 mutex_unlock(&mvm
->mutex
);
3779 static int iwl_mvm_post_channel_switch(struct ieee80211_hw
*hw
,
3780 struct ieee80211_vif
*vif
)
3782 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3783 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3786 mutex_lock(&mvm
->mutex
);
3788 if (mvmvif
->csa_failed
) {
3789 mvmvif
->csa_failed
= false;
3794 if (vif
->type
== NL80211_IFTYPE_STATION
) {
3795 struct iwl_mvm_sta
*mvmsta
;
3797 mvmsta
= iwl_mvm_sta_from_staid_protected(mvm
,
3800 if (WARN_ON(!mvmsta
)) {
3805 iwl_mvm_sta_modify_disable_tx(mvm
, mvmsta
, false);
3807 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
3809 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
3813 iwl_mvm_stop_session_protection(mvm
, vif
);
3816 mvmvif
->ps_disabled
= false;
3818 ret
= iwl_mvm_power_update_ps(mvm
);
3821 mutex_unlock(&mvm
->mutex
);
3826 static void iwl_mvm_mac_flush(struct ieee80211_hw
*hw
,
3827 struct ieee80211_vif
*vif
, u32 queues
, bool drop
)
3829 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3830 struct iwl_mvm_vif
*mvmvif
;
3831 struct iwl_mvm_sta
*mvmsta
;
3832 struct ieee80211_sta
*sta
;
3836 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
)
3839 /* Make sure we're done with the deferred traffic before flushing */
3840 if (iwl_mvm_is_dqa_supported(mvm
))
3841 flush_work(&mvm
->add_stream_wk
);
3843 mutex_lock(&mvm
->mutex
);
3844 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3846 /* flush the AP-station and all TDLS peers */
3847 for (i
= 0; i
< IWL_MVM_STATION_COUNT
; i
++) {
3848 sta
= rcu_dereference_protected(mvm
->fw_id_to_mac_id
[i
],
3849 lockdep_is_held(&mvm
->mutex
));
3850 if (IS_ERR_OR_NULL(sta
))
3853 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
3854 if (mvmsta
->vif
!= vif
)
3857 /* make sure only TDLS peers or the AP are flushed */
3858 WARN_ON(i
!= mvmvif
->ap_sta_id
&& !sta
->tdls
);
3860 msk
|= mvmsta
->tfd_queue_msk
;
3864 if (iwl_mvm_flush_tx_path(mvm
, msk
, 0))
3865 IWL_ERR(mvm
, "flush request fail\n");
3866 mutex_unlock(&mvm
->mutex
);
3868 mutex_unlock(&mvm
->mutex
);
3870 /* this can take a while, and we may need/want other operations
3871 * to succeed while doing this, so do it without the mutex held
3873 iwl_trans_wait_tx_queue_empty(mvm
->trans
, msk
);
3877 static int iwl_mvm_mac_get_survey(struct ieee80211_hw
*hw
, int idx
,
3878 struct survey_info
*survey
)
3880 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3883 memset(survey
, 0, sizeof(*survey
));
3885 /* only support global statistics right now */
3889 if (!fw_has_capa(&mvm
->fw
->ucode_capa
,
3890 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS
))
3893 mutex_lock(&mvm
->mutex
);
3895 if (mvm
->ucode_loaded
) {
3896 ret
= iwl_mvm_request_statistics(mvm
, false);
3901 survey
->filled
= SURVEY_INFO_TIME
|
3902 SURVEY_INFO_TIME_RX
|
3903 SURVEY_INFO_TIME_TX
|
3904 SURVEY_INFO_TIME_SCAN
;
3905 survey
->time
= mvm
->accu_radio_stats
.on_time_rf
+
3906 mvm
->radio_stats
.on_time_rf
;
3907 do_div(survey
->time
, USEC_PER_MSEC
);
3909 survey
->time_rx
= mvm
->accu_radio_stats
.rx_time
+
3910 mvm
->radio_stats
.rx_time
;
3911 do_div(survey
->time_rx
, USEC_PER_MSEC
);
3913 survey
->time_tx
= mvm
->accu_radio_stats
.tx_time
+
3914 mvm
->radio_stats
.tx_time
;
3915 do_div(survey
->time_tx
, USEC_PER_MSEC
);
3917 survey
->time_scan
= mvm
->accu_radio_stats
.on_time_scan
+
3918 mvm
->radio_stats
.on_time_scan
;
3919 do_div(survey
->time_scan
, USEC_PER_MSEC
);
3923 mutex_unlock(&mvm
->mutex
);
3927 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw
*hw
,
3928 struct ieee80211_vif
*vif
,
3929 struct ieee80211_sta
*sta
,
3930 struct station_info
*sinfo
)
3932 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3933 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3934 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
3936 if (mvmsta
->avg_energy
) {
3937 sinfo
->signal_avg
= mvmsta
->avg_energy
;
3938 sinfo
->filled
|= BIT(NL80211_STA_INFO_SIGNAL_AVG
);
3941 if (!fw_has_capa(&mvm
->fw
->ucode_capa
,
3942 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS
))
3945 /* if beacon filtering isn't on mac80211 does it anyway */
3946 if (!(vif
->driver_flags
& IEEE80211_VIF_BEACON_FILTER
))
3949 if (!vif
->bss_conf
.assoc
)
3952 mutex_lock(&mvm
->mutex
);
3954 if (mvmvif
->ap_sta_id
!= mvmsta
->sta_id
)
3957 if (iwl_mvm_request_statistics(mvm
, false))
3960 sinfo
->rx_beacon
= mvmvif
->beacon_stats
.num_beacons
+
3961 mvmvif
->beacon_stats
.accu_num_beacons
;
3962 sinfo
->filled
|= BIT(NL80211_STA_INFO_BEACON_RX
);
3963 if (mvmvif
->beacon_stats
.avg_signal
) {
3964 /* firmware only reports a value after RXing a few beacons */
3965 sinfo
->rx_beacon_signal_avg
= mvmvif
->beacon_stats
.avg_signal
;
3966 sinfo
->filled
|= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG
);
3969 mutex_unlock(&mvm
->mutex
);
3972 static void iwl_mvm_event_mlme_callback(struct iwl_mvm
*mvm
,
3973 struct ieee80211_vif
*vif
,
3974 const struct ieee80211_event
*event
)
3976 #define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
3978 if ((_cnt) && --(_cnt)) \
3980 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
3983 struct iwl_fw_dbg_trigger_tlv
*trig
;
3984 struct iwl_fw_dbg_trigger_mlme
*trig_mlme
;
3986 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_MLME
))
3989 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_MLME
);
3990 trig_mlme
= (void *)trig
->data
;
3991 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
3994 if (event
->u
.mlme
.data
== ASSOC_EVENT
) {
3995 if (event
->u
.mlme
.status
== MLME_DENIED
)
3996 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
3997 trig_mlme
->stop_assoc_denied
,
3998 "DENIED ASSOC: reason %d",
3999 event
->u
.mlme
.reason
);
4000 else if (event
->u
.mlme
.status
== MLME_TIMEOUT
)
4001 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
4002 trig_mlme
->stop_assoc_timeout
,
4004 } else if (event
->u
.mlme
.data
== AUTH_EVENT
) {
4005 if (event
->u
.mlme
.status
== MLME_DENIED
)
4006 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
4007 trig_mlme
->stop_auth_denied
,
4008 "DENIED AUTH: reason %d",
4009 event
->u
.mlme
.reason
);
4010 else if (event
->u
.mlme
.status
== MLME_TIMEOUT
)
4011 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
4012 trig_mlme
->stop_auth_timeout
,
4014 } else if (event
->u
.mlme
.data
== DEAUTH_RX_EVENT
) {
4015 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
4016 trig_mlme
->stop_rx_deauth
,
4017 "DEAUTH RX %d", event
->u
.mlme
.reason
);
4018 } else if (event
->u
.mlme
.data
== DEAUTH_TX_EVENT
) {
4019 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
4020 trig_mlme
->stop_tx_deauth
,
4021 "DEAUTH TX %d", event
->u
.mlme
.reason
);
4023 #undef CHECK_MLME_TRIGGER
4026 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm
*mvm
,
4027 struct ieee80211_vif
*vif
,
4028 const struct ieee80211_event
*event
)
4030 struct iwl_fw_dbg_trigger_tlv
*trig
;
4031 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
4033 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
4036 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
4037 ba_trig
= (void *)trig
->data
;
4038 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
4041 if (!(le16_to_cpu(ba_trig
->rx_bar
) & BIT(event
->u
.ba
.tid
)))
4044 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
4045 "BAR received from %pM, tid %d, ssn %d",
4046 event
->u
.ba
.sta
->addr
, event
->u
.ba
.tid
,
4051 iwl_mvm_event_frame_timeout_callback(struct iwl_mvm
*mvm
,
4052 struct ieee80211_vif
*vif
,
4053 const struct ieee80211_event
*event
)
4055 struct iwl_fw_dbg_trigger_tlv
*trig
;
4056 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
4058 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
4061 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
4062 ba_trig
= (void *)trig
->data
;
4063 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
4066 if (!(le16_to_cpu(ba_trig
->frame_timeout
) & BIT(event
->u
.ba
.tid
)))
4069 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
4070 "Frame from %pM timed out, tid %d",
4071 event
->u
.ba
.sta
->addr
, event
->u
.ba
.tid
);
4074 static void iwl_mvm_mac_event_callback(struct ieee80211_hw
*hw
,
4075 struct ieee80211_vif
*vif
,
4076 const struct ieee80211_event
*event
)
4078 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
4080 switch (event
->type
) {
4082 iwl_mvm_event_mlme_callback(mvm
, vif
, event
);
4085 iwl_mvm_event_bar_rx_callback(mvm
, vif
, event
);
4087 case BA_FRAME_TIMEOUT
:
4088 iwl_mvm_event_frame_timeout_callback(mvm
, vif
, event
);
4095 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm
*mvm
,
4096 struct iwl_mvm_internal_rxq_notif
*notif
,
4099 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(notif_waitq
);
4100 u32 qmask
= BIT(mvm
->trans
->num_rx_queues
) - 1;
4103 lockdep_assert_held(&mvm
->mutex
);
4105 if (!iwl_mvm_has_new_rx_api(mvm
))
4108 notif
->cookie
= mvm
->queue_sync_cookie
;
4111 atomic_set(&mvm
->queue_sync_counter
,
4112 mvm
->trans
->num_rx_queues
);
4114 ret
= iwl_mvm_notify_rx_queue(mvm
, qmask
, (u8
*)notif
, size
);
4116 IWL_ERR(mvm
, "Failed to trigger RX queues sync (%d)\n", ret
);
4121 ret
= wait_event_timeout(notif_waitq
,
4122 atomic_read(&mvm
->queue_sync_counter
) == 0,
4127 atomic_set(&mvm
->queue_sync_counter
, 0);
4128 mvm
->queue_sync_cookie
++;
4131 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw
*hw
)
4133 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
4134 struct iwl_mvm_internal_rxq_notif data
= {
4135 .type
= IWL_MVM_RXQ_EMPTY
,
4139 mutex_lock(&mvm
->mutex
);
4140 iwl_mvm_sync_rx_queues_internal(mvm
, &data
, sizeof(data
));
4141 mutex_unlock(&mvm
->mutex
);
4144 const struct ieee80211_ops iwl_mvm_hw_ops
= {
4145 .tx
= iwl_mvm_mac_tx
,
4146 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
4147 .start
= iwl_mvm_mac_start
,
4148 .reconfig_complete
= iwl_mvm_mac_reconfig_complete
,
4149 .stop
= iwl_mvm_mac_stop
,
4150 .add_interface
= iwl_mvm_mac_add_interface
,
4151 .remove_interface
= iwl_mvm_mac_remove_interface
,
4152 .config
= iwl_mvm_mac_config
,
4153 .prepare_multicast
= iwl_mvm_prepare_multicast
,
4154 .configure_filter
= iwl_mvm_configure_filter
,
4155 .config_iface_filter
= iwl_mvm_config_iface_filter
,
4156 .bss_info_changed
= iwl_mvm_bss_info_changed
,
4157 .hw_scan
= iwl_mvm_mac_hw_scan
,
4158 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
4159 .sta_pre_rcu_remove
= iwl_mvm_sta_pre_rcu_remove
,
4160 .sta_state
= iwl_mvm_mac_sta_state
,
4161 .sta_notify
= iwl_mvm_mac_sta_notify
,
4162 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
4163 .release_buffered_frames
= iwl_mvm_mac_release_buffered_frames
,
4164 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
4165 .sta_rc_update
= iwl_mvm_sta_rc_update
,
4166 .conf_tx
= iwl_mvm_mac_conf_tx
,
4167 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
4168 .mgd_protect_tdls_discover
= iwl_mvm_mac_mgd_protect_tdls_discover
,
4169 .flush
= iwl_mvm_mac_flush
,
4170 .sched_scan_start
= iwl_mvm_mac_sched_scan_start
,
4171 .sched_scan_stop
= iwl_mvm_mac_sched_scan_stop
,
4172 .set_key
= iwl_mvm_mac_set_key
,
4173 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
4174 .remain_on_channel
= iwl_mvm_roc
,
4175 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
4176 .add_chanctx
= iwl_mvm_add_chanctx
,
4177 .remove_chanctx
= iwl_mvm_remove_chanctx
,
4178 .change_chanctx
= iwl_mvm_change_chanctx
,
4179 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
4180 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
4181 .switch_vif_chanctx
= iwl_mvm_switch_vif_chanctx
,
4183 .start_ap
= iwl_mvm_start_ap_ibss
,
4184 .stop_ap
= iwl_mvm_stop_ap_ibss
,
4185 .join_ibss
= iwl_mvm_start_ap_ibss
,
4186 .leave_ibss
= iwl_mvm_stop_ap_ibss
,
4188 .set_tim
= iwl_mvm_set_tim
,
4190 .channel_switch
= iwl_mvm_channel_switch
,
4191 .pre_channel_switch
= iwl_mvm_pre_channel_switch
,
4192 .post_channel_switch
= iwl_mvm_post_channel_switch
,
4194 .tdls_channel_switch
= iwl_mvm_tdls_channel_switch
,
4195 .tdls_cancel_channel_switch
= iwl_mvm_tdls_cancel_channel_switch
,
4196 .tdls_recv_channel_switch
= iwl_mvm_tdls_recv_channel_switch
,
4198 .event_callback
= iwl_mvm_mac_event_callback
,
4200 .sync_rx_queues
= iwl_mvm_sync_rx_queues
,
4202 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd
)
4204 #ifdef CONFIG_PM_SLEEP
4206 .suspend
= iwl_mvm_suspend
,
4207 .resume
= iwl_mvm_resume
,
4208 .set_wakeup
= iwl_mvm_set_wakeup
,
4209 .set_rekey_data
= iwl_mvm_set_rekey_data
,
4210 #if IS_ENABLED(CONFIG_IPV6)
4211 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
4213 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,
4215 .get_survey
= iwl_mvm_mac_get_survey
,
4216 .sta_statistics
= iwl_mvm_mac_sta_statistics
,