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
) + 6);
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
++;
493 if (iwl_mvm_has_new_rx_api(mvm
)) {
494 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] =
495 WLAN_CIPHER_SUITE_BIP_GMAC_128
;
496 hw
->wiphy
->n_cipher_suites
++;
497 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] =
498 WLAN_CIPHER_SUITE_BIP_GMAC_256
;
499 hw
->wiphy
->n_cipher_suites
++;
503 /* currently FW API supports only one optional cipher scheme */
504 if (mvm
->fw
->cs
[0].cipher
) {
505 const struct iwl_fw_cipher_scheme
*fwcs
= &mvm
->fw
->cs
[0];
506 struct ieee80211_cipher_scheme
*cs
= &mvm
->cs
[0];
508 mvm
->hw
->n_cipher_schemes
= 1;
510 cs
->cipher
= le32_to_cpu(fwcs
->cipher
);
511 cs
->iftype
= BIT(NL80211_IFTYPE_STATION
);
512 cs
->hdr_len
= fwcs
->hdr_len
;
513 cs
->pn_len
= fwcs
->pn_len
;
514 cs
->pn_off
= fwcs
->pn_off
;
515 cs
->key_idx_off
= fwcs
->key_idx_off
;
516 cs
->key_idx_mask
= fwcs
->key_idx_mask
;
517 cs
->key_idx_shift
= fwcs
->key_idx_shift
;
518 cs
->mic_len
= fwcs
->mic_len
;
520 mvm
->hw
->cipher_schemes
= mvm
->cs
;
521 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] = cs
->cipher
;
522 hw
->wiphy
->n_cipher_suites
++;
525 ieee80211_hw_set(hw
, SINGLE_SCAN_ON_ALL_BANDS
);
526 hw
->wiphy
->features
|=
527 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR
|
528 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR
|
529 NL80211_FEATURE_ND_RANDOM_MAC_ADDR
;
531 hw
->sta_data_size
= sizeof(struct iwl_mvm_sta
);
532 hw
->vif_data_size
= sizeof(struct iwl_mvm_vif
);
533 hw
->chanctx_data_size
= sizeof(u16
);
535 hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
536 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
537 BIT(NL80211_IFTYPE_AP
) |
538 BIT(NL80211_IFTYPE_P2P_GO
) |
539 BIT(NL80211_IFTYPE_P2P_DEVICE
) |
540 BIT(NL80211_IFTYPE_ADHOC
);
542 hw
->wiphy
->flags
|= WIPHY_FLAG_IBSS_RSN
;
543 hw
->wiphy
->regulatory_flags
|= REGULATORY_ENABLE_RELAX_NO_IR
;
544 if (iwl_mvm_is_lar_supported(mvm
))
545 hw
->wiphy
->regulatory_flags
|= REGULATORY_WIPHY_SELF_MANAGED
;
547 hw
->wiphy
->regulatory_flags
|= REGULATORY_CUSTOM_REG
|
548 REGULATORY_DISABLE_BEACON_HINTS
;
550 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_GO_UAPSD
)
551 hw
->wiphy
->flags
|= WIPHY_FLAG_AP_UAPSD
;
553 hw
->wiphy
->flags
|= WIPHY_FLAG_HAS_CHANNEL_SWITCH
;
555 hw
->wiphy
->iface_combinations
= iwl_mvm_iface_combinations
;
556 hw
->wiphy
->n_iface_combinations
=
557 ARRAY_SIZE(iwl_mvm_iface_combinations
);
559 hw
->wiphy
->max_remain_on_channel_duration
= 10000;
560 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
561 /* we can compensate an offset of up to 3 channels = 15 MHz */
562 hw
->wiphy
->max_adj_channel_rssi_comp
= 3 * 5;
564 /* Extract MAC address */
565 memcpy(mvm
->addresses
[0].addr
, mvm
->nvm_data
->hw_addr
, ETH_ALEN
);
566 hw
->wiphy
->addresses
= mvm
->addresses
;
567 hw
->wiphy
->n_addresses
= 1;
569 /* Extract additional MAC addresses if available */
570 num_mac
= (mvm
->nvm_data
->n_hw_addrs
> 1) ?
571 min(IWL_MVM_MAX_ADDRESSES
, mvm
->nvm_data
->n_hw_addrs
) : 1;
573 for (i
= 1; i
< num_mac
; i
++) {
574 memcpy(mvm
->addresses
[i
].addr
, mvm
->addresses
[i
-1].addr
,
576 mvm
->addresses
[i
].addr
[5]++;
577 hw
->wiphy
->n_addresses
++;
580 iwl_mvm_reset_phy_ctxts(mvm
);
582 hw
->wiphy
->max_scan_ie_len
= iwl_mvm_max_scan_ie_len(mvm
);
584 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
586 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK
& IWL_MVM_SCAN_MASK
);
587 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS
> HWEIGHT32(IWL_MVM_SCAN_MASK
) ||
588 IWL_MVM_MAX_LMAC_SCANS
> HWEIGHT32(IWL_MVM_SCAN_MASK
));
590 if (fw_has_capa(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_CAPA_UMAC_SCAN
))
591 mvm
->max_scans
= IWL_MVM_MAX_UMAC_SCANS
;
593 mvm
->max_scans
= IWL_MVM_MAX_LMAC_SCANS
;
595 if (mvm
->nvm_data
->bands
[NL80211_BAND_2GHZ
].n_channels
)
596 hw
->wiphy
->bands
[NL80211_BAND_2GHZ
] =
597 &mvm
->nvm_data
->bands
[NL80211_BAND_2GHZ
];
598 if (mvm
->nvm_data
->bands
[NL80211_BAND_5GHZ
].n_channels
) {
599 hw
->wiphy
->bands
[NL80211_BAND_5GHZ
] =
600 &mvm
->nvm_data
->bands
[NL80211_BAND_5GHZ
];
602 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
603 IWL_UCODE_TLV_CAPA_BEAMFORMER
) &&
604 fw_has_api(&mvm
->fw
->ucode_capa
,
605 IWL_UCODE_TLV_API_LQ_SS_PARAMS
))
606 hw
->wiphy
->bands
[NL80211_BAND_5GHZ
]->vht_cap
.cap
|=
607 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE
;
610 hw
->wiphy
->hw_version
= mvm
->trans
->hw_id
;
612 if (iwlmvm_mod_params
.power_scheme
!= IWL_POWER_SCHEME_CAM
)
613 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
615 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
617 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_SCHED_SCAN
;
618 hw
->wiphy
->max_sched_scan_ssids
= PROBE_OPTION_MAX
;
619 hw
->wiphy
->max_match_sets
= IWL_SCAN_MAX_PROFILES
;
620 /* we create the 802.11 header and zero length SSID IE. */
621 hw
->wiphy
->max_sched_scan_ie_len
=
622 SCAN_OFFLOAD_PROBE_REQ_SIZE
- 24 - 2;
623 hw
->wiphy
->max_sched_scan_plans
= IWL_MAX_SCHED_SCAN_PLANS
;
624 hw
->wiphy
->max_sched_scan_plan_interval
= U16_MAX
;
627 * the firmware uses u8 for num of iterations, but 0xff is saved for
628 * infinite loop, so the maximum number of iterations is actually 254.
630 hw
->wiphy
->max_sched_scan_plan_iterations
= 254;
632 hw
->wiphy
->features
|= NL80211_FEATURE_P2P_GO_CTWIN
|
633 NL80211_FEATURE_LOW_PRIORITY_SCAN
|
634 NL80211_FEATURE_P2P_GO_OPPPS
|
635 NL80211_FEATURE_AP_MODE_CHAN_WIDTH_CHANGE
|
636 NL80211_FEATURE_DYNAMIC_SMPS
|
637 NL80211_FEATURE_STATIC_SMPS
|
638 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION
;
640 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
641 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT
))
642 hw
->wiphy
->features
|= NL80211_FEATURE_TX_POWER_INSERTION
;
643 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
644 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT
))
645 hw
->wiphy
->features
|= NL80211_FEATURE_QUIET
;
647 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
648 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT
))
649 hw
->wiphy
->features
|=
650 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES
;
652 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
653 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT
))
654 hw
->wiphy
->features
|= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES
;
656 mvm
->rts_threshold
= IEEE80211_MAX_RTS_THRESHOLD
;
658 #ifdef CONFIG_PM_SLEEP
659 if (iwl_mvm_is_d0i3_supported(mvm
) &&
660 device_can_wakeup(mvm
->trans
->dev
)) {
661 mvm
->wowlan
.flags
= WIPHY_WOWLAN_ANY
;
662 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
665 if (mvm
->fw
->img
[IWL_UCODE_WOWLAN
].sec
[0].len
&&
666 mvm
->trans
->ops
->d3_suspend
&&
667 mvm
->trans
->ops
->d3_resume
&&
668 device_can_wakeup(mvm
->trans
->dev
)) {
669 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_MAGIC_PKT
|
670 WIPHY_WOWLAN_DISCONNECT
|
671 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
672 WIPHY_WOWLAN_RFKILL_RELEASE
|
673 WIPHY_WOWLAN_NET_DETECT
;
674 if (!iwlwifi_mod_params
.sw_crypto
)
675 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
676 WIPHY_WOWLAN_GTK_REKEY_FAILURE
|
677 WIPHY_WOWLAN_4WAY_HANDSHAKE
;
679 mvm
->wowlan
.n_patterns
= IWL_WOWLAN_MAX_PATTERNS
;
680 mvm
->wowlan
.pattern_min_len
= IWL_WOWLAN_MIN_PATTERN_LEN
;
681 mvm
->wowlan
.pattern_max_len
= IWL_WOWLAN_MAX_PATTERN_LEN
;
682 mvm
->wowlan
.max_nd_match_sets
= IWL_SCAN_MAX_PROFILES
;
683 mvm
->wowlan
.tcp
= &iwl_mvm_wowlan_tcp_support
;
684 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
688 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
689 /* assign default bcast filtering configuration */
690 mvm
->bcast_filters
= iwl_mvm_default_bcast_filters
;
693 ret
= iwl_mvm_leds_init(mvm
);
697 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
698 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT
)) {
699 IWL_DEBUG_TDLS(mvm
, "TDLS supported\n");
700 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_TDLS
;
701 ieee80211_hw_set(hw
, TDLS_WIDER_BW
);
704 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
705 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH
)) {
706 IWL_DEBUG_TDLS(mvm
, "TDLS channel switch supported\n");
707 hw
->wiphy
->features
|= NL80211_FEATURE_TDLS_CHANNEL_SWITCH
;
710 hw
->netdev_features
|= mvm
->cfg
->features
;
711 if (!iwl_mvm_is_csum_supported(mvm
)) {
712 hw
->netdev_features
&= ~(IWL_TX_CSUM_NETIF_FLAGS
|
714 /* We may support SW TX CSUM */
715 if (IWL_MVM_SW_TX_CSUM_OFFLOAD
)
716 hw
->netdev_features
|= IWL_TX_CSUM_NETIF_FLAGS
;
719 ret
= ieee80211_register_hw(mvm
->hw
);
721 iwl_mvm_leds_exit(mvm
);
726 static bool iwl_mvm_defer_tx(struct iwl_mvm
*mvm
,
727 struct ieee80211_sta
*sta
,
730 struct iwl_mvm_sta
*mvmsta
;
734 * double check the IN_D0I3 flag both before and after
735 * taking the spinlock, in order to prevent taking
736 * the spinlock when not needed.
738 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
)))
741 spin_lock(&mvm
->d0i3_tx_lock
);
743 * testing the flag again ensures the skb dequeue
744 * loop (on d0i3 exit) hasn't run yet.
746 if (!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
))
749 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
750 if (mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
||
751 mvmsta
->sta_id
!= mvm
->d0i3_ap_sta_id
)
754 __skb_queue_tail(&mvm
->d0i3_tx
, skb
);
755 ieee80211_stop_queues(mvm
->hw
);
758 iwl_mvm_ref(mvm
, IWL_MVM_REF_TX
);
759 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX
);
763 spin_unlock(&mvm
->d0i3_tx_lock
);
767 static void iwl_mvm_mac_tx(struct ieee80211_hw
*hw
,
768 struct ieee80211_tx_control
*control
,
771 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
772 struct ieee80211_sta
*sta
= control
->sta
;
773 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
774 struct ieee80211_hdr
*hdr
= (void *)skb
->data
;
776 if (iwl_mvm_is_radio_killed(mvm
)) {
777 IWL_DEBUG_DROP(mvm
, "Dropping - RF/CT KILL\n");
781 if (IEEE80211_SKB_CB(skb
)->hw_queue
== IWL_MVM_OFFCHANNEL_QUEUE
&&
782 !test_bit(IWL_MVM_STATUS_ROC_RUNNING
, &mvm
->status
) &&
783 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING
, &mvm
->status
))
786 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
787 if (unlikely(info
->flags
& IEEE80211_TX_CTL_NO_PS_BUFFER
&&
788 ieee80211_is_mgmt(hdr
->frame_control
) &&
789 !ieee80211_is_deauth(hdr
->frame_control
) &&
790 !ieee80211_is_disassoc(hdr
->frame_control
) &&
791 !ieee80211_is_action(hdr
->frame_control
)))
795 if (iwl_mvm_defer_tx(mvm
, sta
, skb
))
797 if (iwl_mvm_tx_skb(mvm
, skb
, sta
))
802 if (iwl_mvm_tx_skb_non_sta(mvm
, skb
))
806 ieee80211_free_txskb(hw
, skb
);
809 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg
*cfg
)
811 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
)
816 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg
*cfg
)
818 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
)
820 if (iwlwifi_mod_params
.disable_11n
& IWL_ENABLE_HT_TXAGG
)
823 /* enabled by default */
827 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
829 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
831 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
835 iwl_mvm_ampdu_check_trigger(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
836 struct ieee80211_sta
*sta
, u16 tid
, u16 rx_ba_ssn
,
837 enum ieee80211_ampdu_mlme_action action
)
839 struct iwl_fw_dbg_trigger_tlv
*trig
;
840 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
842 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
845 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
846 ba_trig
= (void *)trig
->data
;
848 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
852 case IEEE80211_AMPDU_TX_OPERATIONAL
: {
853 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
854 struct iwl_mvm_tid_data
*tid_data
= &mvmsta
->tid_data
[tid
];
856 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->tx_ba_start
, tid
,
857 "TX AGG START: MAC %pM tid %d ssn %d\n",
858 sta
->addr
, tid
, tid_data
->ssn
);
861 case IEEE80211_AMPDU_TX_STOP_CONT
:
862 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->tx_ba_stop
, tid
,
863 "TX AGG STOP: MAC %pM tid %d\n",
866 case IEEE80211_AMPDU_RX_START
:
867 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->rx_ba_start
, tid
,
868 "RX AGG START: MAC %pM tid %d ssn %d\n",
869 sta
->addr
, tid
, rx_ba_ssn
);
871 case IEEE80211_AMPDU_RX_STOP
:
872 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->rx_ba_stop
, tid
,
873 "RX AGG STOP: MAC %pM tid %d\n",
881 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw
*hw
,
882 struct ieee80211_vif
*vif
,
883 struct ieee80211_ampdu_params
*params
)
885 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
887 bool tx_agg_ref
= false;
888 struct ieee80211_sta
*sta
= params
->sta
;
889 enum ieee80211_ampdu_mlme_action action
= params
->action
;
890 u16 tid
= params
->tid
;
891 u16
*ssn
= ¶ms
->ssn
;
892 u8 buf_size
= params
->buf_size
;
893 bool amsdu
= params
->amsdu
;
894 u16 timeout
= params
->timeout
;
896 IWL_DEBUG_HT(mvm
, "A-MPDU action on addr %pM tid %d: action %d\n",
897 sta
->addr
, tid
, action
);
899 if (!(mvm
->nvm_data
->sku_cap_11n_enable
))
902 /* return from D0i3 before starting a new Tx aggregation */
904 case IEEE80211_AMPDU_TX_START
:
905 case IEEE80211_AMPDU_TX_STOP_CONT
:
906 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
907 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
908 case IEEE80211_AMPDU_TX_OPERATIONAL
:
910 * for tx start, wait synchronously until D0i3 exit to
911 * get the correct sequence number for the tid.
912 * additionally, some other ampdu actions use direct
913 * target access, which is not handled automatically
914 * by the trans layer (unlike commands), so wait for
915 * d0i3 exit in these cases as well.
917 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_TX_AGG
);
927 mutex_lock(&mvm
->mutex
);
930 case IEEE80211_AMPDU_RX_START
:
931 if (!iwl_enable_rx_ampdu(mvm
->cfg
)) {
935 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, *ssn
, true, buf_size
,
938 case IEEE80211_AMPDU_RX_STOP
:
939 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, 0, false, buf_size
,
942 case IEEE80211_AMPDU_TX_START
:
943 if (!iwl_enable_tx_ampdu(mvm
->cfg
)) {
947 ret
= iwl_mvm_sta_tx_agg_start(mvm
, vif
, sta
, tid
, ssn
);
949 case IEEE80211_AMPDU_TX_STOP_CONT
:
950 ret
= iwl_mvm_sta_tx_agg_stop(mvm
, vif
, sta
, tid
);
952 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
953 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
954 ret
= iwl_mvm_sta_tx_agg_flush(mvm
, vif
, sta
, tid
);
956 case IEEE80211_AMPDU_TX_OPERATIONAL
:
957 ret
= iwl_mvm_sta_tx_agg_oper(mvm
, vif
, sta
, tid
,
969 if (action
== IEEE80211_AMPDU_RX_START
)
972 iwl_mvm_ampdu_check_trigger(mvm
, vif
, sta
, tid
,
975 mutex_unlock(&mvm
->mutex
);
978 * If the tid is marked as started, we won't use it for offloaded
979 * traffic on the next D0i3 entry. It's safe to unref.
982 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX_AGG
);
987 static void iwl_mvm_cleanup_iterator(void *data
, u8
*mac
,
988 struct ieee80211_vif
*vif
)
990 struct iwl_mvm
*mvm
= data
;
991 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
993 mvmvif
->uploaded
= false;
994 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
996 spin_lock_bh(&mvm
->time_event_lock
);
997 iwl_mvm_te_clear_data(mvm
, &mvmvif
->time_event_data
);
998 spin_unlock_bh(&mvm
->time_event_lock
);
1000 mvmvif
->phy_ctxt
= NULL
;
1001 memset(&mvmvif
->bf_data
, 0, sizeof(mvmvif
->bf_data
));
1004 static void iwl_mvm_restart_cleanup(struct iwl_mvm
*mvm
)
1006 /* clear the D3 reconfig, we only need it to avoid dumping a
1007 * firmware coredump on reconfiguration, we shouldn't do that
1008 * on D3->D0 transition
1010 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG
, &mvm
->status
)) {
1011 mvm
->fw_dump_desc
= &iwl_mvm_dump_desc_assert
;
1012 iwl_mvm_fw_error_dump(mvm
);
1015 /* cleanup all stale references (scan, roc), but keep the
1016 * ucode_down ref until reconfig is complete
1018 iwl_mvm_unref_all_except(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1020 iwl_mvm_stop_device(mvm
);
1022 mvm
->scan_status
= 0;
1023 mvm
->ps_disabled
= false;
1024 mvm
->calibrating
= false;
1026 /* just in case one was running */
1027 iwl_mvm_cleanup_roc_te(mvm
);
1028 ieee80211_remain_on_channel_expired(mvm
->hw
);
1031 * cleanup all interfaces, even inactive ones, as some might have
1032 * gone down during the HW restart
1034 ieee80211_iterate_interfaces(mvm
->hw
, 0, iwl_mvm_cleanup_iterator
, mvm
);
1036 mvm
->p2p_device_vif
= NULL
;
1037 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1039 iwl_mvm_reset_phy_ctxts(mvm
);
1040 memset(mvm
->fw_key_table
, 0, sizeof(mvm
->fw_key_table
));
1041 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
1042 memset(mvm
->sta_deferred_frames
, 0, sizeof(mvm
->sta_deferred_frames
));
1043 memset(mvm
->tfd_drained
, 0, sizeof(mvm
->tfd_drained
));
1044 memset(&mvm
->last_bt_notif
, 0, sizeof(mvm
->last_bt_notif
));
1045 memset(&mvm
->last_bt_ci_cmd
, 0, sizeof(mvm
->last_bt_ci_cmd
));
1047 ieee80211_wake_queues(mvm
->hw
);
1049 /* clear any stale d0i3 state */
1050 clear_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
);
1053 mvm
->rx_ba_sessions
= 0;
1054 mvm
->fw_dbg_conf
= FW_DBG_INVALID
;
1056 /* keep statistics ticking */
1057 iwl_mvm_accu_radio_stats(mvm
);
1060 int __iwl_mvm_mac_start(struct iwl_mvm
*mvm
)
1064 lockdep_assert_held(&mvm
->mutex
);
1066 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
1067 /* Clean up some internal and mac80211 state on restart */
1068 iwl_mvm_restart_cleanup(mvm
);
1070 /* Hold the reference to prevent runtime suspend while
1071 * the start procedure runs. It's a bit confusing
1072 * that the UCODE_DOWN reference is taken, but it just
1073 * means "UCODE is not UP yet". ( TODO: rename this
1076 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1078 ret
= iwl_mvm_up(mvm
);
1080 if (ret
&& test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
1081 /* Something went wrong - we need to finish some cleanup
1082 * that normally iwl_mvm_mac_restart_complete() below
1085 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1086 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
1092 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
1094 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1097 /* Some hw restart cleanups must not hold the mutex */
1098 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
1100 * Make sure we are out of d0i3. This is needed
1101 * to make sure the reference accounting is correct
1102 * (and there is no stale d0i3_exit_work).
1104 wait_event_timeout(mvm
->d0i3_exit_waitq
,
1105 !test_bit(IWL_MVM_STATUS_IN_D0I3
,
1110 mutex_lock(&mvm
->mutex
);
1111 ret
= __iwl_mvm_mac_start(mvm
);
1112 mutex_unlock(&mvm
->mutex
);
1117 static void iwl_mvm_restart_complete(struct iwl_mvm
*mvm
)
1121 mutex_lock(&mvm
->mutex
);
1123 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1124 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
1125 ret
= iwl_mvm_update_quotas(mvm
, true, NULL
);
1127 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
1130 /* allow transport/FW low power modes */
1131 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1134 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1135 * of packets the FW sent out, so we must reconnect.
1137 iwl_mvm_teardown_tdls_peers(mvm
);
1139 mutex_unlock(&mvm
->mutex
);
1142 static void iwl_mvm_resume_complete(struct iwl_mvm
*mvm
)
1144 if (iwl_mvm_is_d0i3_supported(mvm
) &&
1145 iwl_mvm_enter_d0i3_on_suspend(mvm
))
1146 WARN_ONCE(!wait_event_timeout(mvm
->d0i3_exit_waitq
,
1147 !test_bit(IWL_MVM_STATUS_IN_D0I3
,
1150 "D0i3 exit on resume timed out\n");
1154 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw
*hw
,
1155 enum ieee80211_reconfig_type reconfig_type
)
1157 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1159 switch (reconfig_type
) {
1160 case IEEE80211_RECONFIG_TYPE_RESTART
:
1161 iwl_mvm_restart_complete(mvm
);
1163 case IEEE80211_RECONFIG_TYPE_SUSPEND
:
1164 iwl_mvm_resume_complete(mvm
);
1169 void __iwl_mvm_mac_stop(struct iwl_mvm
*mvm
)
1171 lockdep_assert_held(&mvm
->mutex
);
1173 /* firmware counters are obviously reset now, but we shouldn't
1174 * partially track so also clear the fw_reset_accu counters.
1176 memset(&mvm
->accu_radio_stats
, 0, sizeof(mvm
->accu_radio_stats
));
1178 /* async_handlers_wk is now blocked */
1181 * The work item could be running or queued if the
1182 * ROC time event stops just as we get here.
1184 flush_work(&mvm
->roc_done_wk
);
1186 iwl_mvm_stop_device(mvm
);
1188 iwl_mvm_async_handlers_purge(mvm
);
1189 /* async_handlers_list is empty and will stay empty: HW is stopped */
1191 /* the fw is stopped, the aux sta is dead: clean up driver state */
1192 iwl_mvm_del_aux_sta(mvm
);
1194 iwl_free_fw_paging(mvm
);
1197 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1198 * won't be called in this case).
1199 * But make sure to cleanup interfaces that have gone down before/during
1200 * HW restart was requested.
1202 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
1203 ieee80211_iterate_interfaces(mvm
->hw
, 0,
1204 iwl_mvm_cleanup_iterator
, mvm
);
1206 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1207 * make sure there's nothing left there and warn if any is found.
1209 if (fw_has_capa(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_CAPA_UMAC_SCAN
)) {
1212 for (i
= 0; i
< mvm
->max_scans
; i
++) {
1213 if (WARN_ONCE(mvm
->scan_uid_status
[i
],
1214 "UMAC scan UID %d status was not cleaned\n",
1216 mvm
->scan_uid_status
[i
] = 0;
1221 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
1223 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1225 flush_work(&mvm
->d0i3_exit_work
);
1226 flush_work(&mvm
->async_handlers_wk
);
1227 flush_work(&mvm
->add_stream_wk
);
1228 cancel_delayed_work_sync(&mvm
->fw_dump_wk
);
1229 cancel_delayed_work_sync(&mvm
->cs_tx_unblock_dwork
);
1230 cancel_delayed_work_sync(&mvm
->scan_timeout_dwork
);
1231 iwl_mvm_free_fw_dump_desc(mvm
);
1233 mutex_lock(&mvm
->mutex
);
1234 __iwl_mvm_mac_stop(mvm
);
1235 mutex_unlock(&mvm
->mutex
);
1238 * The worker might have been waiting for the mutex, let it run and
1239 * discover that its list is now empty.
1241 cancel_work_sync(&mvm
->async_handlers_wk
);
1244 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
1248 lockdep_assert_held(&mvm
->mutex
);
1250 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
1251 if (!mvm
->phy_ctxts
[i
].ref
)
1252 return &mvm
->phy_ctxts
[i
];
1254 IWL_ERR(mvm
, "No available PHY context\n");
1258 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
1261 struct iwl_dev_tx_power_cmd cmd
= {
1262 .v3
.v2
.set_mode
= cpu_to_le32(IWL_TX_POWER_MODE_SET_MAC
),
1263 .v3
.v2
.mac_context_id
=
1264 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif
)->id
),
1265 .v3
.v2
.pwr_restriction
= cpu_to_le16(8 * tx_power
),
1267 int len
= sizeof(cmd
);
1269 if (tx_power
== IWL_DEFAULT_MAX_TX_POWER
)
1270 cmd
.v3
.v2
.pwr_restriction
= cpu_to_le16(IWL_DEV_MAX_TX_POWER
);
1272 if (!fw_has_capa(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_CAPA_TX_POWER_ACK
))
1273 len
= sizeof(cmd
.v3
);
1274 if (!fw_has_api(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_API_TX_POWER_CHAIN
))
1275 len
= sizeof(cmd
.v3
.v2
);
1277 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, 0, len
, &cmd
);
1280 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
1281 struct ieee80211_vif
*vif
)
1283 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1284 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1290 * make sure D0i3 exit is completed, otherwise a target access
1291 * during tx queue configuration could be done when still in
1294 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_ADD_IF
);
1299 * Not much to do here. The stack will not allow interface
1300 * types or combinations that we didn't advertise, so we
1301 * don't really have to check the types.
1304 mutex_lock(&mvm
->mutex
);
1306 /* make sure that beacon statistics don't go backwards with FW reset */
1307 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
1308 mvmvif
->beacon_stats
.accu_num_beacons
+=
1309 mvmvif
->beacon_stats
.num_beacons
;
1311 /* Allocate resources for the MAC context, and add it to the fw */
1312 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
1316 /* Counting number of interfaces is needed for legacy PM */
1317 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1321 * The AP binding flow can be done only after the beacon
1322 * template is configured (which happens only in the mac80211
1323 * start_ap() flow), and adding the broadcast station can happen
1324 * only after the binding.
1325 * In addition, since modifying the MAC before adding a bcast
1326 * station is not allowed by the FW, delay the adding of MAC context to
1327 * the point where we can also add the bcast station.
1328 * In short: there's not much we can do at this point, other than
1329 * allocating resources :)
1331 if (vif
->type
== NL80211_IFTYPE_AP
||
1332 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1333 ret
= iwl_mvm_alloc_bcast_sta(mvm
, vif
);
1335 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
1339 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1343 mvmvif
->features
|= hw
->netdev_features
;
1345 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1349 ret
= iwl_mvm_power_update_mac(mvm
);
1351 goto out_remove_mac
;
1353 /* beacon filtering */
1354 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
1356 goto out_remove_mac
;
1358 if (!mvm
->bf_allowed_vif
&&
1359 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
) {
1360 mvm
->bf_allowed_vif
= mvmvif
;
1361 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
1362 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
1366 * P2P_DEVICE interface does not have a channel context assigned to it,
1367 * so a dedicated PHY context is allocated to it and the corresponding
1368 * MAC context is bound to it at this stage.
1370 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1372 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1373 if (!mvmvif
->phy_ctxt
) {
1378 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1379 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1383 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
);
1387 /* Save a pointer to p2p device vif, so it can later be used to
1388 * update the p2p device MAC when a GO is started/stopped */
1389 mvm
->p2p_device_vif
= vif
;
1392 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1396 iwl_mvm_binding_remove_vif(mvm
, vif
);
1398 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1400 if (mvm
->bf_allowed_vif
== mvmvif
) {
1401 mvm
->bf_allowed_vif
= NULL
;
1402 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1403 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1406 mvmvif
->phy_ctxt
= NULL
;
1407 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1409 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1412 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1414 mutex_unlock(&mvm
->mutex
);
1416 iwl_mvm_unref(mvm
, IWL_MVM_REF_ADD_IF
);
1421 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
1422 struct ieee80211_vif
*vif
)
1424 u32 tfd_msk
= iwl_mvm_mac_get_queues_mask(vif
);
1428 * mac80211 first removes all the stations of the vif and
1429 * then removes the vif. When it removes a station it also
1430 * flushes the AMPDU session. So by now, all the AMPDU sessions
1431 * of all the stations of this vif are closed, and the queues
1432 * of these AMPDU sessions are properly closed.
1433 * We still need to take care of the shared queues of the vif.
1436 mutex_lock(&mvm
->mutex
);
1437 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, 0);
1438 mutex_unlock(&mvm
->mutex
);
1441 * There are transports that buffer a few frames in the host.
1442 * For these, the flush above isn't enough since while we were
1443 * flushing, the transport might have sent more frames to the
1444 * device. To solve this, wait here until the transport is
1445 * empty. Technically, this could have replaced the flush
1446 * above, but flush is much faster than draining. So flush
1447 * first, and drain to make sure we have no frames in the
1448 * transport anymore.
1449 * If a station still had frames on the shared queues, it is
1450 * already marked as draining, so to complete the draining, we
1451 * just need to wait until the transport is empty.
1453 iwl_trans_wait_tx_queue_empty(mvm
->trans
, tfd_msk
);
1456 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1458 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1459 * We assume here that all the packets sent to the OFFCHANNEL
1460 * queue are sent in ROC session.
1462 flush_work(&mvm
->roc_done_wk
);
1465 * By now, all the AC queues are empty. The AGG queues are
1466 * empty too. We already got all the Tx responses for all the
1467 * packets in the queues. The drain work can have been
1468 * triggered. Flush it.
1470 flush_work(&mvm
->sta_drained_wk
);
1474 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
1475 struct ieee80211_vif
*vif
)
1477 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1478 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1480 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1482 mutex_lock(&mvm
->mutex
);
1484 if (mvm
->bf_allowed_vif
== mvmvif
) {
1485 mvm
->bf_allowed_vif
= NULL
;
1486 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1487 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1490 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
1493 * For AP/GO interface, the tear down of the resources allocated to the
1494 * interface is be handled as part of the stop_ap flow.
1496 if (vif
->type
== NL80211_IFTYPE_AP
||
1497 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1498 #ifdef CONFIG_NL80211_TESTMODE
1499 if (vif
== mvm
->noa_vif
) {
1500 mvm
->noa_vif
= NULL
;
1501 mvm
->noa_duration
= 0;
1504 iwl_mvm_dealloc_bcast_sta(mvm
, vif
);
1508 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1509 mvm
->p2p_device_vif
= NULL
;
1510 iwl_mvm_rm_bcast_sta(mvm
, vif
);
1511 iwl_mvm_binding_remove_vif(mvm
, vif
);
1512 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1513 mvmvif
->phy_ctxt
= NULL
;
1516 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1519 iwl_mvm_power_update_mac(mvm
);
1520 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1523 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1524 mutex_unlock(&mvm
->mutex
);
1527 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
1532 struct iwl_mvm_mc_iter_data
{
1533 struct iwl_mvm
*mvm
;
1537 static void iwl_mvm_mc_iface_iterator(void *_data
, u8
*mac
,
1538 struct ieee80211_vif
*vif
)
1540 struct iwl_mvm_mc_iter_data
*data
= _data
;
1541 struct iwl_mvm
*mvm
= data
->mvm
;
1542 struct iwl_mcast_filter_cmd
*cmd
= mvm
->mcast_filter_cmd
;
1545 /* if we don't have free ports, mcast frames will be dropped */
1546 if (WARN_ON_ONCE(data
->port_id
>= MAX_PORT_ID_NUM
))
1549 if (vif
->type
!= NL80211_IFTYPE_STATION
||
1550 !vif
->bss_conf
.assoc
)
1553 cmd
->port_id
= data
->port_id
++;
1554 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
1555 len
= roundup(sizeof(*cmd
) + cmd
->count
* ETH_ALEN
, 4);
1557 ret
= iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_ASYNC
, len
, cmd
);
1559 IWL_ERR(mvm
, "mcast filter cmd error. ret=%d\n", ret
);
1562 static void iwl_mvm_recalc_multicast(struct iwl_mvm
*mvm
)
1564 struct iwl_mvm_mc_iter_data iter_data
= {
1568 lockdep_assert_held(&mvm
->mutex
);
1570 if (WARN_ON_ONCE(!mvm
->mcast_filter_cmd
))
1573 ieee80211_iterate_active_interfaces_atomic(
1574 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1575 iwl_mvm_mc_iface_iterator
, &iter_data
);
1578 static u64
iwl_mvm_prepare_multicast(struct ieee80211_hw
*hw
,
1579 struct netdev_hw_addr_list
*mc_list
)
1581 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1582 struct iwl_mcast_filter_cmd
*cmd
;
1583 struct netdev_hw_addr
*addr
;
1588 addr_count
= netdev_hw_addr_list_count(mc_list
);
1589 pass_all
= addr_count
> MAX_MCAST_FILTERING_ADDRESSES
||
1590 IWL_MVM_FW_MCAST_FILTER_PASS_ALL
;
1594 len
= roundup(sizeof(*cmd
) + addr_count
* ETH_ALEN
, 4);
1595 cmd
= kzalloc(len
, GFP_ATOMIC
);
1601 return (u64
)(unsigned long)cmd
;
1604 netdev_hw_addr_list_for_each(addr
, mc_list
) {
1605 IWL_DEBUG_MAC80211(mvm
, "mcast addr (%d): %pM\n",
1606 cmd
->count
, addr
->addr
);
1607 memcpy(&cmd
->addr_list
[cmd
->count
* ETH_ALEN
],
1608 addr
->addr
, ETH_ALEN
);
1612 return (u64
)(unsigned long)cmd
;
1615 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
1616 unsigned int changed_flags
,
1617 unsigned int *total_flags
,
1620 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1621 struct iwl_mcast_filter_cmd
*cmd
= (void *)(unsigned long)multicast
;
1623 mutex_lock(&mvm
->mutex
);
1625 /* replace previous configuration */
1626 kfree(mvm
->mcast_filter_cmd
);
1627 mvm
->mcast_filter_cmd
= cmd
;
1632 iwl_mvm_recalc_multicast(mvm
);
1634 mutex_unlock(&mvm
->mutex
);
1638 static void iwl_mvm_config_iface_filter(struct ieee80211_hw
*hw
,
1639 struct ieee80211_vif
*vif
,
1640 unsigned int filter_flags
,
1641 unsigned int changed_flags
)
1643 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1645 /* We support only filter for probe requests */
1646 if (!(changed_flags
& FIF_PROBE_REQ
))
1649 /* Supported only for p2p client interfaces */
1650 if (vif
->type
!= NL80211_IFTYPE_STATION
|| !vif
->bss_conf
.assoc
||
1654 mutex_lock(&mvm
->mutex
);
1655 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
1656 mutex_unlock(&mvm
->mutex
);
1659 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1660 struct iwl_bcast_iter_data
{
1661 struct iwl_mvm
*mvm
;
1662 struct iwl_bcast_filter_cmd
*cmd
;
1667 iwl_mvm_set_bcast_filter(struct ieee80211_vif
*vif
,
1668 const struct iwl_fw_bcast_filter
*in_filter
,
1669 struct iwl_fw_bcast_filter
*out_filter
)
1671 struct iwl_fw_bcast_filter_attr
*attr
;
1674 memcpy(out_filter
, in_filter
, sizeof(*out_filter
));
1676 for (i
= 0; i
< ARRAY_SIZE(out_filter
->attrs
); i
++) {
1677 attr
= &out_filter
->attrs
[i
];
1682 switch (attr
->reserved1
) {
1683 case cpu_to_le16(BC_FILTER_MAGIC_IP
):
1684 if (vif
->bss_conf
.arp_addr_cnt
!= 1) {
1689 attr
->val
= vif
->bss_conf
.arp_addr_list
[0];
1691 case cpu_to_le16(BC_FILTER_MAGIC_MAC
):
1692 attr
->val
= *(__be32
*)&vif
->addr
[2];
1697 attr
->reserved1
= 0;
1698 out_filter
->num_attrs
++;
1702 static void iwl_mvm_bcast_filter_iterator(void *_data
, u8
*mac
,
1703 struct ieee80211_vif
*vif
)
1705 struct iwl_bcast_iter_data
*data
= _data
;
1706 struct iwl_mvm
*mvm
= data
->mvm
;
1707 struct iwl_bcast_filter_cmd
*cmd
= data
->cmd
;
1708 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1709 struct iwl_fw_bcast_mac
*bcast_mac
;
1712 if (WARN_ON(mvmvif
->id
>= ARRAY_SIZE(cmd
->macs
)))
1715 bcast_mac
= &cmd
->macs
[mvmvif
->id
];
1718 * enable filtering only for associated stations, but not for P2P
1721 if (vif
->type
!= NL80211_IFTYPE_STATION
|| vif
->p2p
||
1722 !vif
->bss_conf
.assoc
)
1725 bcast_mac
->default_discard
= 1;
1727 /* copy all configured filters */
1728 for (i
= 0; mvm
->bcast_filters
[i
].attrs
[0].mask
; i
++) {
1730 * Make sure we don't exceed our filters limit.
1731 * if there is still a valid filter to be configured,
1732 * be on the safe side and just allow bcast for this mac.
1734 if (WARN_ON_ONCE(data
->current_filter
>=
1735 ARRAY_SIZE(cmd
->filters
))) {
1736 bcast_mac
->default_discard
= 0;
1737 bcast_mac
->attached_filters
= 0;
1741 iwl_mvm_set_bcast_filter(vif
,
1742 &mvm
->bcast_filters
[i
],
1743 &cmd
->filters
[data
->current_filter
]);
1745 /* skip current filter if it contains no attributes */
1746 if (!cmd
->filters
[data
->current_filter
].num_attrs
)
1749 /* attach the filter to current mac */
1750 bcast_mac
->attached_filters
|=
1751 cpu_to_le16(BIT(data
->current_filter
));
1753 data
->current_filter
++;
1757 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm
*mvm
,
1758 struct iwl_bcast_filter_cmd
*cmd
)
1760 struct iwl_bcast_iter_data iter_data
= {
1765 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL
)
1768 memset(cmd
, 0, sizeof(*cmd
));
1769 cmd
->max_bcast_filters
= ARRAY_SIZE(cmd
->filters
);
1770 cmd
->max_macs
= ARRAY_SIZE(cmd
->macs
);
1772 #ifdef CONFIG_IWLWIFI_DEBUGFS
1773 /* use debugfs filters/macs if override is configured */
1774 if (mvm
->dbgfs_bcast_filtering
.override
) {
1775 memcpy(cmd
->filters
, &mvm
->dbgfs_bcast_filtering
.cmd
.filters
,
1776 sizeof(cmd
->filters
));
1777 memcpy(cmd
->macs
, &mvm
->dbgfs_bcast_filtering
.cmd
.macs
,
1783 /* if no filters are configured, do nothing */
1784 if (!mvm
->bcast_filters
)
1787 /* configure and attach these filters for each associated sta vif */
1788 ieee80211_iterate_active_interfaces(
1789 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1790 iwl_mvm_bcast_filter_iterator
, &iter_data
);
1795 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
)
1797 struct iwl_bcast_filter_cmd cmd
;
1799 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BCAST_FILTERING
))
1802 if (!iwl_mvm_bcast_filter_build_cmd(mvm
, &cmd
))
1805 return iwl_mvm_send_cmd_pdu(mvm
, BCAST_FILTER_CMD
, 0,
1809 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
)
1815 static int iwl_mvm_update_mu_groups(struct iwl_mvm
*mvm
,
1816 struct ieee80211_vif
*vif
)
1818 struct iwl_mu_group_mgmt_cmd cmd
= {};
1820 memcpy(cmd
.membership_status
, vif
->bss_conf
.mu_group
.membership
,
1821 WLAN_MEMBERSHIP_LEN
);
1822 memcpy(cmd
.user_position
, vif
->bss_conf
.mu_group
.position
,
1823 WLAN_USER_POSITION_LEN
);
1825 return iwl_mvm_send_cmd_pdu(mvm
,
1826 WIDE_ID(DATA_PATH_GROUP
,
1827 UPDATE_MU_GROUPS_CMD
),
1828 0, sizeof(cmd
), &cmd
);
1831 static void iwl_mvm_mu_mimo_iface_iterator(void *_data
, u8
*mac
,
1832 struct ieee80211_vif
*vif
)
1834 if (vif
->mu_mimo_owner
) {
1835 struct iwl_mu_group_mgmt_notif
*notif
= _data
;
1838 * MU-MIMO Group Id action frame is little endian. We treat
1839 * the data received from firmware as if it came from the
1840 * action frame, so no conversion is needed.
1842 ieee80211_update_mu_groups(vif
,
1843 (u8
*)¬if
->membership_status
,
1844 (u8
*)¬if
->user_position
);
1848 void iwl_mvm_mu_mimo_grp_notif(struct iwl_mvm
*mvm
,
1849 struct iwl_rx_cmd_buffer
*rxb
)
1851 struct iwl_rx_packet
*pkt
= rxb_addr(rxb
);
1852 struct iwl_mu_group_mgmt_notif
*notif
= (void *)pkt
->data
;
1854 ieee80211_iterate_active_interfaces_atomic(
1855 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1856 iwl_mvm_mu_mimo_iface_iterator
, notif
);
1859 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
1860 struct ieee80211_vif
*vif
,
1861 struct ieee80211_bss_conf
*bss_conf
,
1864 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1868 * Re-calculate the tsf id, as the master-slave relations depend on the
1869 * beacon interval, which was not known when the station interface was
1872 if (changes
& BSS_CHANGED_ASSOC
&& bss_conf
->assoc
)
1873 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
1875 if (changes
& BSS_CHANGED_ASSOC
&& !bss_conf
->assoc
&&
1877 iwl_mvm_send_lqm_cmd(vif
, LQM_CMD_OPERATION_STOP_MEASUREMENT
,
1881 * If we're not associated yet, take the (new) BSSID before associating
1882 * so the firmware knows. If we're already associated, then use the old
1883 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
1884 * branch for disassociation below.
1886 if (changes
& BSS_CHANGED_BSSID
&& !mvmvif
->associated
)
1887 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1889 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, mvmvif
->bssid
);
1891 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
1893 /* after sending it once, adopt mac80211 data */
1894 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
1895 mvmvif
->associated
= bss_conf
->assoc
;
1897 if (changes
& BSS_CHANGED_ASSOC
) {
1898 if (bss_conf
->assoc
) {
1899 /* clear statistics to get clean beacon counter */
1900 iwl_mvm_request_statistics(mvm
, true);
1901 memset(&mvmvif
->beacon_stats
, 0,
1902 sizeof(mvmvif
->beacon_stats
));
1904 /* add quota for this interface */
1905 ret
= iwl_mvm_update_quotas(mvm
, true, NULL
);
1907 IWL_ERR(mvm
, "failed to update quotas\n");
1911 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
1914 * If we're restarting then the firmware will
1915 * obviously have lost synchronisation with
1916 * the AP. It will attempt to synchronise by
1917 * itself, but we can make it more reliable by
1918 * scheduling a session protection time event.
1920 * The firmware needs to receive a beacon to
1921 * catch up with synchronisation, use 110% of
1922 * the beacon interval.
1924 * Set a large maximum delay to allow for more
1925 * than a single interface.
1927 u32 dur
= (11 * vif
->bss_conf
.beacon_int
) / 10;
1928 iwl_mvm_protect_session(mvm
, vif
, dur
, dur
,
1932 iwl_mvm_sf_update(mvm
, vif
, false);
1933 iwl_mvm_power_vif_assoc(mvm
, vif
);
1935 iwl_mvm_ref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1936 iwl_mvm_update_smps(mvm
, vif
,
1937 IWL_MVM_SMPS_REQ_PROT
,
1938 IEEE80211_SMPS_DYNAMIC
);
1940 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_STATION_COUNT
) {
1942 * If update fails - SF might be running in associated
1943 * mode while disassociated - which is forbidden.
1945 WARN_ONCE(iwl_mvm_sf_update(mvm
, vif
, false),
1946 "Failed to update SF upon disassociation\n");
1948 /* remove AP station now that the MAC is unassoc */
1949 ret
= iwl_mvm_rm_sta_id(mvm
, vif
, mvmvif
->ap_sta_id
);
1951 IWL_ERR(mvm
, "failed to remove AP station\n");
1953 if (mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
1954 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1955 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
1956 /* remove quota for this interface */
1957 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
1959 IWL_ERR(mvm
, "failed to update quotas\n");
1962 iwl_mvm_unref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
1964 /* this will take the cleared BSSID from bss_conf */
1965 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
1968 "failed to update MAC %pM (clear after unassoc)\n",
1973 * The firmware tracks the MU-MIMO group on its own.
1974 * However, on HW restart we should restore this data.
1976 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
1977 (changes
& BSS_CHANGED_MU_GROUPS
) && vif
->mu_mimo_owner
) {
1978 ret
= iwl_mvm_update_mu_groups(mvm
, vif
);
1981 "failed to update VHT MU_MIMO groups\n");
1984 iwl_mvm_recalc_multicast(mvm
);
1985 iwl_mvm_configure_bcast_filter(mvm
);
1987 /* reset rssi values */
1988 mvmvif
->bf_data
.ave_beacon_signal
= 0;
1990 iwl_mvm_bt_coex_vif_change(mvm
);
1991 iwl_mvm_update_smps(mvm
, vif
, IWL_MVM_SMPS_REQ_TT
,
1992 IEEE80211_SMPS_AUTOMATIC
);
1993 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
1994 IWL_UCODE_TLV_CAPA_UMAC_SCAN
))
1995 iwl_mvm_config_scan(mvm
);
1996 } else if (changes
& BSS_CHANGED_BEACON_INFO
) {
1998 * We received a beacon _after_ association so
1999 * remove the session protection.
2001 iwl_mvm_remove_time_event(mvm
, mvmvif
,
2002 &mvmvif
->time_event_data
);
2005 if (changes
& BSS_CHANGED_BEACON_INFO
) {
2006 iwl_mvm_sf_update(mvm
, vif
, false);
2007 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
2010 if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_P2P_PS
| BSS_CHANGED_QOS
|
2012 * Send power command on every beacon change,
2013 * because we may have not enabled beacon abort yet.
2015 BSS_CHANGED_BEACON_INFO
)) {
2016 ret
= iwl_mvm_power_update_mac(mvm
);
2018 IWL_ERR(mvm
, "failed to update power mode\n");
2021 if (changes
& BSS_CHANGED_TXPOWER
) {
2022 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
2024 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
2027 if (changes
& BSS_CHANGED_CQM
) {
2028 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed\n");
2029 /* reset cqm events tracking */
2030 mvmvif
->bf_data
.last_cqm_event
= 0;
2031 if (mvmvif
->bf_data
.bf_enabled
) {
2032 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
2035 "failed to update CQM thresholds\n");
2039 if (changes
& BSS_CHANGED_ARP_FILTER
) {
2040 IWL_DEBUG_MAC80211(mvm
, "arp filter changed\n");
2041 iwl_mvm_configure_bcast_filter(mvm
);
2045 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw
*hw
,
2046 struct ieee80211_vif
*vif
)
2048 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2049 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2053 * iwl_mvm_mac_ctxt_add() might read directly from the device
2054 * (the system time), so make sure it is available.
2056 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_START_AP
);
2060 mutex_lock(&mvm
->mutex
);
2062 /* Send the beacon template */
2063 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
2068 * Re-calculate the tsf id, as the master-slave relations depend on the
2069 * beacon interval, which was not known when the AP interface was added.
2071 if (vif
->type
== NL80211_IFTYPE_AP
)
2072 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
2074 mvmvif
->ap_assoc_sta_count
= 0;
2076 /* Add the mac context */
2077 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
2081 /* Perform the binding */
2082 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2086 /* Send the bcast station. At this stage the TBTT and DTIM time events
2087 * are added and applied to the scheduler */
2088 ret
= iwl_mvm_send_add_bcast_sta(mvm
, vif
);
2092 /* must be set before quota calculations */
2093 mvmvif
->ap_ibss_active
= true;
2095 /* power updated needs to be done before quotas */
2096 iwl_mvm_power_update_mac(mvm
);
2098 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
2100 goto out_quota_failed
;
2102 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2103 if (vif
->p2p
&& mvm
->p2p_device_vif
)
2104 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
2106 iwl_mvm_ref(mvm
, IWL_MVM_REF_AP_IBSS
);
2108 iwl_mvm_bt_coex_vif_change(mvm
);
2110 /* we don't support TDLS during DCM */
2111 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2112 iwl_mvm_teardown_tdls_peers(mvm
);
2117 iwl_mvm_power_update_mac(mvm
);
2118 mvmvif
->ap_ibss_active
= false;
2119 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
2121 iwl_mvm_binding_remove_vif(mvm
, vif
);
2123 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
2125 mutex_unlock(&mvm
->mutex
);
2126 iwl_mvm_unref(mvm
, IWL_MVM_REF_START_AP
);
2130 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw
*hw
,
2131 struct ieee80211_vif
*vif
)
2133 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2134 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2136 iwl_mvm_prepare_mac_removal(mvm
, vif
);
2138 mutex_lock(&mvm
->mutex
);
2140 /* Handle AP stop while in CSA */
2141 if (rcu_access_pointer(mvm
->csa_vif
) == vif
) {
2142 iwl_mvm_remove_time_event(mvm
, mvmvif
,
2143 &mvmvif
->time_event_data
);
2144 RCU_INIT_POINTER(mvm
->csa_vif
, NULL
);
2145 mvmvif
->csa_countdown
= false;
2148 if (rcu_access_pointer(mvm
->csa_tx_blocked_vif
) == vif
) {
2149 RCU_INIT_POINTER(mvm
->csa_tx_blocked_vif
, NULL
);
2150 mvm
->csa_tx_block_bcn_timeout
= 0;
2153 mvmvif
->ap_ibss_active
= false;
2154 mvm
->ap_last_beacon_gp2
= 0;
2156 iwl_mvm_bt_coex_vif_change(mvm
);
2158 iwl_mvm_unref(mvm
, IWL_MVM_REF_AP_IBSS
);
2160 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2161 if (vif
->p2p
&& mvm
->p2p_device_vif
)
2162 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
2164 iwl_mvm_update_quotas(mvm
, false, NULL
);
2165 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
2166 iwl_mvm_binding_remove_vif(mvm
, vif
);
2168 iwl_mvm_power_update_mac(mvm
);
2170 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
2172 mutex_unlock(&mvm
->mutex
);
2176 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm
*mvm
,
2177 struct ieee80211_vif
*vif
,
2178 struct ieee80211_bss_conf
*bss_conf
,
2181 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2183 /* Changes will be applied when the AP/IBSS is started */
2184 if (!mvmvif
->ap_ibss_active
)
2187 if (changes
& (BSS_CHANGED_ERP_CTS_PROT
| BSS_CHANGED_HT
|
2188 BSS_CHANGED_BANDWIDTH
| BSS_CHANGED_QOS
) &&
2189 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
))
2190 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
2192 /* Need to send a new beacon template to the FW */
2193 if (changes
& BSS_CHANGED_BEACON
&&
2194 iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
2195 IWL_WARN(mvm
, "Failed updating beacon data\n");
2197 if (changes
& BSS_CHANGED_TXPOWER
) {
2198 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
2200 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
2204 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
2205 struct ieee80211_vif
*vif
,
2206 struct ieee80211_bss_conf
*bss_conf
,
2209 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2212 * iwl_mvm_bss_info_changed_station() might call
2213 * iwl_mvm_protect_session(), which reads directly from
2214 * the device (the system time), so make sure it is available.
2216 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_BSS_CHANGED
))
2219 mutex_lock(&mvm
->mutex
);
2221 if (changes
& BSS_CHANGED_IDLE
&& !bss_conf
->idle
)
2222 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_SCHED
, true);
2224 switch (vif
->type
) {
2225 case NL80211_IFTYPE_STATION
:
2226 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
2228 case NL80211_IFTYPE_AP
:
2229 case NL80211_IFTYPE_ADHOC
:
2230 iwl_mvm_bss_info_changed_ap_ibss(mvm
, vif
, bss_conf
, changes
);
2233 /* shouldn't happen */
2237 mutex_unlock(&mvm
->mutex
);
2238 iwl_mvm_unref(mvm
, IWL_MVM_REF_BSS_CHANGED
);
2241 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
2242 struct ieee80211_vif
*vif
,
2243 struct ieee80211_scan_request
*hw_req
)
2245 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2248 if (hw_req
->req
.n_channels
== 0 ||
2249 hw_req
->req
.n_channels
> mvm
->fw
->ucode_capa
.n_scan_channels
)
2252 mutex_lock(&mvm
->mutex
);
2253 ret
= iwl_mvm_reg_scan_start(mvm
, vif
, &hw_req
->req
, &hw_req
->ies
);
2254 mutex_unlock(&mvm
->mutex
);
2259 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
2260 struct ieee80211_vif
*vif
)
2262 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2264 mutex_lock(&mvm
->mutex
);
2266 /* Due to a race condition, it's possible that mac80211 asks
2267 * us to stop a hw_scan when it's already stopped. This can
2268 * happen, for instance, if we stopped the scan ourselves,
2269 * called ieee80211_scan_completed() and the userspace called
2270 * cancel scan scan before ieee80211_scan_work() could run.
2271 * To handle that, simply return if the scan is not running.
2273 if (mvm
->scan_status
& IWL_MVM_SCAN_REGULAR
)
2274 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_REGULAR
, true);
2276 mutex_unlock(&mvm
->mutex
);
2280 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
2281 struct ieee80211_sta
*sta
, u16 tids
,
2283 enum ieee80211_frame_release_type reason
,
2286 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2288 /* Called when we need to transmit (a) frame(s) from mac80211 */
2290 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2291 tids
, more_data
, false);
2295 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw
*hw
,
2296 struct ieee80211_sta
*sta
, u16 tids
,
2298 enum ieee80211_frame_release_type reason
,
2301 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2303 /* Called when we need to transmit (a) frame(s) from agg queue */
2305 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2306 tids
, more_data
, true);
2309 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
2310 struct ieee80211_vif
*vif
,
2311 enum sta_notify_cmd cmd
,
2312 struct ieee80211_sta
*sta
)
2314 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2315 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2316 unsigned long txqs
= 0, tids
= 0;
2319 spin_lock_bh(&mvmsta
->lock
);
2320 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
2321 struct iwl_mvm_tid_data
*tid_data
= &mvmsta
->tid_data
[tid
];
2323 if (tid_data
->state
!= IWL_AGG_ON
&&
2324 tid_data
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
2327 __set_bit(tid_data
->txq_id
, &txqs
);
2329 if (iwl_mvm_tid_queued(tid_data
) == 0)
2332 __set_bit(tid
, &tids
);
2336 case STA_NOTIFY_SLEEP
:
2337 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
2338 ieee80211_sta_block_awake(hw
, sta
, true);
2340 for_each_set_bit(tid
, &tids
, IWL_MAX_TID_COUNT
)
2341 ieee80211_sta_set_buffered(sta
, tid
, true);
2344 iwl_trans_freeze_txq_timer(mvm
->trans
, txqs
, true);
2346 * The fw updates the STA to be asleep. Tx packets on the Tx
2347 * queues to this station will not be transmitted. The fw will
2348 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2351 case STA_NOTIFY_AWAKE
:
2352 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
))
2356 iwl_trans_freeze_txq_timer(mvm
->trans
, txqs
, false);
2357 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
2362 spin_unlock_bh(&mvmsta
->lock
);
2365 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw
*hw
,
2366 struct ieee80211_vif
*vif
,
2367 struct ieee80211_sta
*sta
)
2369 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2370 struct iwl_mvm_sta
*mvm_sta
= iwl_mvm_sta_from_mac80211(sta
);
2373 * This is called before mac80211 does RCU synchronisation,
2374 * so here we already invalidate our internal RCU-protected
2375 * station pointer. The rest of the code will thus no longer
2376 * be able to find the station this way, and we don't rely
2377 * on further RCU synchronisation after the sta_state()
2378 * callback deleted the station.
2380 mutex_lock(&mvm
->mutex
);
2381 if (sta
== rcu_access_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
]))
2382 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
],
2385 mutex_unlock(&mvm
->mutex
);
2388 static void iwl_mvm_check_uapsd(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
2391 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT
))
2394 if (vif
->p2p
&& !iwl_mvm_is_p2p_scm_uapsd_supported(mvm
)) {
2395 vif
->driver_flags
&= ~IEEE80211_VIF_SUPPORTS_UAPSD
;
2400 (iwlwifi_mod_params
.uapsd_disable
& IWL_DISABLE_UAPSD_BSS
)) {
2401 vif
->driver_flags
&= ~IEEE80211_VIF_SUPPORTS_UAPSD
;
2405 vif
->driver_flags
|= IEEE80211_VIF_SUPPORTS_UAPSD
;
2409 iwl_mvm_tdls_check_trigger(struct iwl_mvm
*mvm
,
2410 struct ieee80211_vif
*vif
, u8
*peer_addr
,
2411 enum nl80211_tdls_operation action
)
2413 struct iwl_fw_dbg_trigger_tlv
*trig
;
2414 struct iwl_fw_dbg_trigger_tdls
*tdls_trig
;
2416 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_TDLS
))
2419 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_TDLS
);
2420 tdls_trig
= (void *)trig
->data
;
2421 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
2424 if (!(tdls_trig
->action_bitmap
& BIT(action
)))
2427 if (tdls_trig
->peer_mode
&&
2428 memcmp(tdls_trig
->peer
, peer_addr
, ETH_ALEN
) != 0)
2431 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
2432 "TDLS event occurred, peer %pM, action %d",
2436 static void iwl_mvm_purge_deferred_tx_frames(struct iwl_mvm
*mvm
,
2437 struct iwl_mvm_sta
*mvm_sta
)
2439 struct iwl_mvm_tid_data
*tid_data
;
2440 struct sk_buff
*skb
;
2443 spin_lock_bh(&mvm_sta
->lock
);
2444 for (i
= 0; i
<= IWL_MAX_TID_COUNT
; i
++) {
2445 tid_data
= &mvm_sta
->tid_data
[i
];
2446 while ((skb
= __skb_dequeue(&tid_data
->deferred_tx_frames
)))
2447 ieee80211_free_txskb(mvm
->hw
, skb
);
2449 spin_unlock_bh(&mvm_sta
->lock
);
2452 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
2453 struct ieee80211_vif
*vif
,
2454 struct ieee80211_sta
*sta
,
2455 enum ieee80211_sta_state old_state
,
2456 enum ieee80211_sta_state new_state
)
2458 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2459 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2462 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
2463 sta
->addr
, old_state
, new_state
);
2465 /* this would be a mac80211 bug ... but don't crash */
2466 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
2469 /* if a STA is being removed, reuse its ID */
2470 flush_work(&mvm
->sta_drained_wk
);
2473 * If we are in a STA removal flow and in DQA mode:
2475 * This is after the sync_rcu part, so the queues have already been
2476 * flushed. No more TXs on their way in mac80211's path, and no more in
2478 * Also, we won't be getting any new TX frames for this station.
2479 * What we might have are deferred TX frames that need to be taken care
2482 * Drop any still-queued deferred-frame before removing the STA, and
2483 * make sure the worker is no longer handling frames for this STA.
2485 if (old_state
== IEEE80211_STA_NONE
&&
2486 new_state
== IEEE80211_STA_NOTEXIST
&&
2487 iwl_mvm_is_dqa_supported(mvm
)) {
2488 struct iwl_mvm_sta
*mvm_sta
= iwl_mvm_sta_from_mac80211(sta
);
2490 iwl_mvm_purge_deferred_tx_frames(mvm
, mvm_sta
);
2491 flush_work(&mvm
->add_stream_wk
);
2494 * No need to make sure deferred TX indication is off since the
2495 * worker will already remove it if it was on
2499 mutex_lock(&mvm
->mutex
);
2500 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2501 new_state
== IEEE80211_STA_NONE
) {
2503 * Firmware bug - it'll crash if the beacon interval is less
2504 * than 16. We can't avoid connecting at all, so refuse the
2505 * station state change, this will cause mac80211 to abandon
2506 * attempts to connect to this AP, and eventually wpa_s will
2507 * blacklist the AP...
2509 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2510 vif
->bss_conf
.beacon_int
< 16) {
2512 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2513 sta
->addr
, vif
->bss_conf
.beacon_int
);
2520 iwl_mvm_tdls_sta_count(mvm
, NULL
) ==
2521 IWL_MVM_TDLS_STA_COUNT
||
2522 iwl_mvm_phy_ctx_count(mvm
) > 1)) {
2523 IWL_DEBUG_MAC80211(mvm
, "refusing TDLS sta\n");
2528 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
2529 if (sta
->tdls
&& ret
== 0) {
2530 iwl_mvm_recalc_tdls_state(mvm
, vif
, true);
2531 iwl_mvm_tdls_check_trigger(mvm
, vif
, sta
->addr
,
2532 NL80211_TDLS_SETUP
);
2534 } else if (old_state
== IEEE80211_STA_NONE
&&
2535 new_state
== IEEE80211_STA_AUTH
) {
2537 * EBS may be disabled due to previous failures reported by FW.
2538 * Reset EBS status here assuming environment has been changed.
2540 mvm
->last_ebs_successful
= true;
2541 iwl_mvm_check_uapsd(mvm
, vif
, sta
->addr
);
2543 } else if (old_state
== IEEE80211_STA_AUTH
&&
2544 new_state
== IEEE80211_STA_ASSOC
) {
2545 if (vif
->type
== NL80211_IFTYPE_AP
) {
2546 mvmvif
->ap_assoc_sta_count
++;
2547 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2549 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
2551 iwl_mvm_rs_rate_init(mvm
, sta
,
2552 mvmvif
->phy_ctxt
->channel
->band
,
2554 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2555 new_state
== IEEE80211_STA_AUTHORIZED
) {
2557 /* we don't support TDLS during DCM */
2558 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2559 iwl_mvm_teardown_tdls_peers(mvm
);
2562 iwl_mvm_tdls_check_trigger(mvm
, vif
, sta
->addr
,
2563 NL80211_TDLS_ENABLE_LINK
);
2565 /* enable beacon filtering */
2566 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
2568 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
2569 new_state
== IEEE80211_STA_ASSOC
) {
2570 /* disable beacon filtering */
2571 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
, 0));
2573 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2574 new_state
== IEEE80211_STA_AUTH
) {
2575 if (vif
->type
== NL80211_IFTYPE_AP
) {
2576 mvmvif
->ap_assoc_sta_count
--;
2577 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2580 } else if (old_state
== IEEE80211_STA_AUTH
&&
2581 new_state
== IEEE80211_STA_NONE
) {
2583 } else if (old_state
== IEEE80211_STA_NONE
&&
2584 new_state
== IEEE80211_STA_NOTEXIST
) {
2585 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
2587 iwl_mvm_recalc_tdls_state(mvm
, vif
, false);
2588 iwl_mvm_tdls_check_trigger(mvm
, vif
, sta
->addr
,
2589 NL80211_TDLS_DISABLE_LINK
);
2595 mutex_unlock(&mvm
->mutex
);
2597 if (sta
->tdls
&& ret
== 0) {
2598 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2599 new_state
== IEEE80211_STA_NONE
)
2600 ieee80211_reserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2601 else if (old_state
== IEEE80211_STA_NONE
&&
2602 new_state
== IEEE80211_STA_NOTEXIST
)
2603 ieee80211_unreserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2609 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
2611 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2613 mvm
->rts_threshold
= value
;
2618 static void iwl_mvm_sta_rc_update(struct ieee80211_hw
*hw
,
2619 struct ieee80211_vif
*vif
,
2620 struct ieee80211_sta
*sta
, u32 changed
)
2622 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2624 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2625 changed
& IEEE80211_RC_NSS_CHANGED
)
2626 iwl_mvm_sf_update(mvm
, vif
, false);
2629 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
2630 struct ieee80211_vif
*vif
, u16 ac
,
2631 const struct ieee80211_tx_queue_params
*params
)
2633 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2634 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2636 mvmvif
->queue_params
[ac
] = *params
;
2639 * No need to update right away, we'll get BSS_CHANGED_QOS
2640 * The exception is P2P_DEVICE interface which needs immediate update.
2642 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
2645 mutex_lock(&mvm
->mutex
);
2646 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2647 mutex_unlock(&mvm
->mutex
);
2653 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
2654 struct ieee80211_vif
*vif
)
2656 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2657 u32 duration
= IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
;
2658 u32 min_duration
= IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
;
2660 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
2664 * iwl_mvm_protect_session() reads directly from the device
2665 * (the system time), so make sure it is available.
2667 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PREPARE_TX
))
2670 mutex_lock(&mvm
->mutex
);
2671 /* Try really hard to protect the session and hear a beacon */
2672 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
, 500, false);
2673 mutex_unlock(&mvm
->mutex
);
2675 iwl_mvm_unref(mvm
, IWL_MVM_REF_PREPARE_TX
);
2678 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw
*hw
,
2679 struct ieee80211_vif
*vif
,
2680 struct cfg80211_sched_scan_request
*req
,
2681 struct ieee80211_scan_ies
*ies
)
2683 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2687 mutex_lock(&mvm
->mutex
);
2689 if (!vif
->bss_conf
.idle
) {
2694 ret
= iwl_mvm_sched_scan_start(mvm
, vif
, req
, ies
, IWL_MVM_SCAN_SCHED
);
2697 mutex_unlock(&mvm
->mutex
);
2701 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw
*hw
,
2702 struct ieee80211_vif
*vif
)
2704 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2707 mutex_lock(&mvm
->mutex
);
2709 /* Due to a race condition, it's possible that mac80211 asks
2710 * us to stop a sched_scan when it's already stopped. This
2711 * can happen, for instance, if we stopped the scan ourselves,
2712 * called ieee80211_sched_scan_stopped() and the userspace called
2713 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2714 * could run. To handle this, simply return if the scan is
2717 if (!(mvm
->scan_status
& IWL_MVM_SCAN_SCHED
)) {
2718 mutex_unlock(&mvm
->mutex
);
2722 ret
= iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_SCHED
, false);
2723 mutex_unlock(&mvm
->mutex
);
2724 iwl_mvm_wait_for_async_handlers(mvm
);
2729 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
2730 enum set_key_cmd cmd
,
2731 struct ieee80211_vif
*vif
,
2732 struct ieee80211_sta
*sta
,
2733 struct ieee80211_key_conf
*key
)
2735 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2736 struct iwl_mvm_sta
*mvmsta
;
2737 struct iwl_mvm_key_pn
*ptk_pn
;
2738 int keyidx
= key
->keyidx
;
2742 if (iwlwifi_mod_params
.sw_crypto
) {
2743 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
2747 switch (key
->cipher
) {
2748 case WLAN_CIPHER_SUITE_TKIP
:
2749 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
2750 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2752 case WLAN_CIPHER_SUITE_CCMP
:
2753 case WLAN_CIPHER_SUITE_GCMP
:
2754 case WLAN_CIPHER_SUITE_GCMP_256
:
2755 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2757 case WLAN_CIPHER_SUITE_AES_CMAC
:
2758 case WLAN_CIPHER_SUITE_BIP_GMAC_128
:
2759 case WLAN_CIPHER_SUITE_BIP_GMAC_256
:
2760 WARN_ON_ONCE(!ieee80211_hw_check(hw
, MFP_CAPABLE
));
2762 case WLAN_CIPHER_SUITE_WEP40
:
2763 case WLAN_CIPHER_SUITE_WEP104
:
2764 /* For non-client mode, only use WEP keys for TX as we probably
2765 * don't have a station yet anyway and would then have to keep
2766 * track of the keys, linking them to each of the clients/peers
2767 * as they appear. For now, don't do that, for performance WEP
2768 * offload doesn't really matter much, but we need it for some
2769 * other offload features in client mode.
2771 if (vif
->type
!= NL80211_IFTYPE_STATION
)
2775 /* currently FW supports only one optional cipher scheme */
2776 if (hw
->n_cipher_schemes
&&
2777 hw
->cipher_schemes
->cipher
== key
->cipher
)
2778 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2783 mutex_lock(&mvm
->mutex
);
2787 if ((vif
->type
== NL80211_IFTYPE_ADHOC
||
2788 vif
->type
== NL80211_IFTYPE_AP
) && !sta
) {
2790 * GTK on AP interface is a TX-only key, return 0;
2791 * on IBSS they're per-station and because we're lazy
2792 * we don't support them for RX, so do the same.
2793 * CMAC/GMAC in AP/IBSS modes must be done in software.
2795 if (key
->cipher
== WLAN_CIPHER_SUITE_AES_CMAC
||
2796 key
->cipher
== WLAN_CIPHER_SUITE_BIP_GMAC_128
||
2797 key
->cipher
== WLAN_CIPHER_SUITE_BIP_GMAC_256
)
2801 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2805 /* During FW restart, in order to restore the state as it was,
2806 * don't try to reprogram keys we previously failed for.
2808 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2809 key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2810 IWL_DEBUG_MAC80211(mvm
,
2811 "skip invalid idx key programming during restart\n");
2816 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2817 sta
&& iwl_mvm_has_new_rx_api(mvm
) &&
2818 key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
&&
2819 (key
->cipher
== WLAN_CIPHER_SUITE_CCMP
||
2820 key
->cipher
== WLAN_CIPHER_SUITE_GCMP
||
2821 key
->cipher
== WLAN_CIPHER_SUITE_GCMP_256
)) {
2822 struct ieee80211_key_seq seq
;
2825 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2826 WARN_ON(rcu_access_pointer(mvmsta
->ptk_pn
[keyidx
]));
2827 ptk_pn
= kzalloc(sizeof(*ptk_pn
) +
2828 mvm
->trans
->num_rx_queues
*
2829 sizeof(ptk_pn
->q
[0]),
2836 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
2837 ieee80211_get_key_rx_seq(key
, tid
, &seq
);
2838 for (q
= 0; q
< mvm
->trans
->num_rx_queues
; q
++)
2839 memcpy(ptk_pn
->q
[q
].pn
[tid
],
2841 IEEE80211_CCMP_PN_LEN
);
2844 rcu_assign_pointer(mvmsta
->ptk_pn
[keyidx
], ptk_pn
);
2847 /* in HW restart reuse the index, otherwise request a new one */
2848 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
2849 key_offset
= key
->hw_key_idx
;
2851 key_offset
= STA_KEY_IDX_INVALID
;
2853 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
2854 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
, key_offset
);
2856 IWL_WARN(mvm
, "set key failed\n");
2858 * can't add key for RX, but we don't need it
2859 * in the device for TX so still return 0
2861 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2867 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2872 if (sta
&& iwl_mvm_has_new_rx_api(mvm
) &&
2873 key
->flags
& IEEE80211_KEY_FLAG_PAIRWISE
&&
2874 (key
->cipher
== WLAN_CIPHER_SUITE_CCMP
||
2875 key
->cipher
== WLAN_CIPHER_SUITE_GCMP
||
2876 key
->cipher
== WLAN_CIPHER_SUITE_GCMP_256
)) {
2877 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2878 ptk_pn
= rcu_dereference_protected(
2879 mvmsta
->ptk_pn
[keyidx
],
2880 lockdep_is_held(&mvm
->mutex
));
2881 RCU_INIT_POINTER(mvmsta
->ptk_pn
[keyidx
], NULL
);
2883 kfree_rcu(ptk_pn
, rcu_head
);
2886 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
2887 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
2893 mutex_unlock(&mvm
->mutex
);
2897 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2898 struct ieee80211_vif
*vif
,
2899 struct ieee80211_key_conf
*keyconf
,
2900 struct ieee80211_sta
*sta
,
2901 u32 iv32
, u16
*phase1key
)
2903 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2905 if (keyconf
->hw_key_idx
== STA_KEY_IDX_INVALID
)
2908 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
2912 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data
*notif_wait
,
2913 struct iwl_rx_packet
*pkt
, void *data
)
2915 struct iwl_mvm
*mvm
=
2916 container_of(notif_wait
, struct iwl_mvm
, notif_wait
);
2917 struct iwl_hs20_roc_res
*resp
;
2918 int resp_len
= iwl_rx_packet_payload_len(pkt
);
2919 struct iwl_mvm_time_event_data
*te_data
= data
;
2921 if (WARN_ON(pkt
->hdr
.cmd
!= HOT_SPOT_CMD
))
2924 if (WARN_ON_ONCE(resp_len
!= sizeof(*resp
))) {
2925 IWL_ERR(mvm
, "Invalid HOT_SPOT_CMD response\n");
2929 resp
= (void *)pkt
->data
;
2932 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
2933 resp
->status
, resp
->event_unique_id
);
2935 te_data
->uid
= le32_to_cpu(resp
->event_unique_id
);
2936 IWL_DEBUG_TE(mvm
, "TIME_EVENT_CMD response - UID = 0x%x\n",
2939 spin_lock_bh(&mvm
->time_event_lock
);
2940 list_add_tail(&te_data
->list
, &mvm
->aux_roc_te_list
);
2941 spin_unlock_bh(&mvm
->time_event_lock
);
2946 #define AUX_ROC_MIN_DURATION MSEC_TO_TU(100)
2947 #define AUX_ROC_MIN_DELAY MSEC_TO_TU(200)
2948 #define AUX_ROC_MAX_DELAY MSEC_TO_TU(600)
2949 #define AUX_ROC_SAFETY_BUFFER MSEC_TO_TU(20)
2950 #define AUX_ROC_MIN_SAFETY_BUFFER MSEC_TO_TU(10)
2951 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm
*mvm
,
2952 struct ieee80211_channel
*channel
,
2953 struct ieee80211_vif
*vif
,
2956 int res
, time_reg
= DEVICE_SYSTEM_TIME_REG
;
2957 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2958 struct iwl_mvm_time_event_data
*te_data
= &mvmvif
->hs_time_event_data
;
2959 static const u16 time_event_response
[] = { HOT_SPOT_CMD
};
2960 struct iwl_notification_wait wait_time_event
;
2961 u32 dtim_interval
= vif
->bss_conf
.dtim_period
*
2962 vif
->bss_conf
.beacon_int
;
2964 struct iwl_hs20_roc_req aux_roc_req
= {
2965 .action
= cpu_to_le32(FW_CTXT_ACTION_ADD
),
2967 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX
, 0)),
2968 .sta_id_and_color
= cpu_to_le32(mvm
->aux_sta
.sta_id
),
2969 /* Set the channel info data */
2970 .channel_info
.band
= (channel
->band
== NL80211_BAND_2GHZ
) ?
2971 PHY_BAND_24
: PHY_BAND_5
,
2972 .channel_info
.channel
= channel
->hw_value
,
2973 .channel_info
.width
= PHY_VHT_CHANNEL_MODE20
,
2974 /* Set the time and duration */
2975 .apply_time
= cpu_to_le32(iwl_read_prph(mvm
->trans
, time_reg
)),
2978 delay
= AUX_ROC_MIN_DELAY
;
2979 req_dur
= MSEC_TO_TU(duration
);
2982 * If we are associated we want the delay time to be at least one
2983 * dtim interval so that the FW can wait until after the DTIM and
2984 * then start the time event, this will potentially allow us to
2985 * remain off-channel for the max duration.
2986 * Since we want to use almost a whole dtim interval we would also
2987 * like the delay to be for 2-3 dtim intervals, in case there are
2988 * other time events with higher priority.
2990 if (vif
->bss_conf
.assoc
) {
2991 delay
= min_t(u32
, dtim_interval
* 3, AUX_ROC_MAX_DELAY
);
2992 /* We cannot remain off-channel longer than the DTIM interval */
2993 if (dtim_interval
<= req_dur
) {
2994 req_dur
= dtim_interval
- AUX_ROC_SAFETY_BUFFER
;
2995 if (req_dur
<= AUX_ROC_MIN_DURATION
)
2996 req_dur
= dtim_interval
-
2997 AUX_ROC_MIN_SAFETY_BUFFER
;
3001 aux_roc_req
.duration
= cpu_to_le32(req_dur
);
3002 aux_roc_req
.apply_time_max_delay
= cpu_to_le32(delay
);
3005 "ROC: Requesting to remain on channel %u for %ums (requested = %ums, max_delay = %ums, dtim_interval = %ums)\n",
3006 channel
->hw_value
, req_dur
, duration
, delay
,
3008 /* Set the node address */
3009 memcpy(aux_roc_req
.node_addr
, vif
->addr
, ETH_ALEN
);
3011 lockdep_assert_held(&mvm
->mutex
);
3013 spin_lock_bh(&mvm
->time_event_lock
);
3015 if (WARN_ON(te_data
->id
== HOT_SPOT_CMD
)) {
3016 spin_unlock_bh(&mvm
->time_event_lock
);
3021 te_data
->duration
= duration
;
3022 te_data
->id
= HOT_SPOT_CMD
;
3024 spin_unlock_bh(&mvm
->time_event_lock
);
3027 * Use a notification wait, which really just processes the
3028 * command response and doesn't wait for anything, in order
3029 * to be able to process the response and get the UID inside
3030 * the RX path. Using CMD_WANT_SKB doesn't work because it
3031 * stores the buffer and then wakes up this thread, by which
3032 * time another notification (that the time event started)
3033 * might already be processed unsuccessfully.
3035 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_time_event
,
3036 time_event_response
,
3037 ARRAY_SIZE(time_event_response
),
3038 iwl_mvm_rx_aux_roc
, te_data
);
3040 res
= iwl_mvm_send_cmd_pdu(mvm
, HOT_SPOT_CMD
, 0, sizeof(aux_roc_req
),
3044 IWL_ERR(mvm
, "Couldn't send HOT_SPOT_CMD: %d\n", res
);
3045 iwl_remove_notification(&mvm
->notif_wait
, &wait_time_event
);
3049 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3050 res
= iwl_wait_notification(&mvm
->notif_wait
, &wait_time_event
, 1);
3051 /* should never fail */
3056 spin_lock_bh(&mvm
->time_event_lock
);
3057 iwl_mvm_te_clear_data(mvm
, te_data
);
3058 spin_unlock_bh(&mvm
->time_event_lock
);
3064 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
3065 struct ieee80211_vif
*vif
,
3066 struct ieee80211_channel
*channel
,
3068 enum ieee80211_roc_type type
)
3070 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3071 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3072 struct cfg80211_chan_def chandef
;
3073 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
3076 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
3079 flush_work(&mvm
->roc_done_wk
);
3081 mutex_lock(&mvm
->mutex
);
3083 switch (vif
->type
) {
3084 case NL80211_IFTYPE_STATION
:
3085 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
3086 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT
)) {
3087 /* Use aux roc framework (HS20) */
3088 ret
= iwl_mvm_send_aux_roc_cmd(mvm
, channel
,
3092 IWL_ERR(mvm
, "hotspot not supported\n");
3095 case NL80211_IFTYPE_P2P_DEVICE
:
3099 IWL_ERR(mvm
, "vif isn't P2P_DEVICE: %d\n", vif
->type
);
3104 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
3105 phy_ctxt
= &mvm
->phy_ctxts
[i
];
3106 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
3109 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
3111 * Unbind the P2P_DEVICE from the current PHY context,
3112 * and if the PHY context is not used remove it.
3114 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
3115 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
3118 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
3120 /* Bind the P2P_DEVICE to the current PHY Context */
3121 mvmvif
->phy_ctxt
= phy_ctxt
;
3123 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3124 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
3127 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
3128 goto schedule_time_event
;
3132 /* Need to update the PHY context only if the ROC channel changed */
3133 if (channel
== mvmvif
->phy_ctxt
->channel
)
3134 goto schedule_time_event
;
3136 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
3139 * Change the PHY context configuration as it is currently referenced
3140 * only by the P2P Device MAC
3142 if (mvmvif
->phy_ctxt
->ref
== 1) {
3143 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
3149 * The PHY context is shared with other MACs. Need to remove the
3150 * P2P Device from the binding, allocate an new PHY context and
3151 * create a new binding
3153 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
3159 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
3162 IWL_ERR(mvm
, "Failed to change PHY context\n");
3166 /* Unbind the P2P_DEVICE from the current PHY context */
3167 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
3168 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
3171 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
3173 /* Bind the P2P_DEVICE to the new allocated PHY context */
3174 mvmvif
->phy_ctxt
= phy_ctxt
;
3176 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3177 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
3180 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
3183 schedule_time_event
:
3184 /* Schedule the time events */
3185 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
3188 mutex_unlock(&mvm
->mutex
);
3189 IWL_DEBUG_MAC80211(mvm
, "leave\n");
3193 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
3195 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3197 IWL_DEBUG_MAC80211(mvm
, "enter\n");
3199 mutex_lock(&mvm
->mutex
);
3200 iwl_mvm_stop_roc(mvm
);
3201 mutex_unlock(&mvm
->mutex
);
3203 IWL_DEBUG_MAC80211(mvm
, "leave\n");
3207 static int __iwl_mvm_add_chanctx(struct iwl_mvm
*mvm
,
3208 struct ieee80211_chanctx_conf
*ctx
)
3210 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3211 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
3214 lockdep_assert_held(&mvm
->mutex
);
3216 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
3218 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
3224 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
3225 ctx
->rx_chains_static
,
3226 ctx
->rx_chains_dynamic
);
3228 IWL_ERR(mvm
, "Failed to add PHY context\n");
3232 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
3233 *phy_ctxt_id
= phy_ctxt
->id
;
3238 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
3239 struct ieee80211_chanctx_conf
*ctx
)
3241 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3244 mutex_lock(&mvm
->mutex
);
3245 ret
= __iwl_mvm_add_chanctx(mvm
, ctx
);
3246 mutex_unlock(&mvm
->mutex
);
3251 static void __iwl_mvm_remove_chanctx(struct iwl_mvm
*mvm
,
3252 struct ieee80211_chanctx_conf
*ctx
)
3254 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3255 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3257 lockdep_assert_held(&mvm
->mutex
);
3259 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
3262 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
3263 struct ieee80211_chanctx_conf
*ctx
)
3265 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3267 mutex_lock(&mvm
->mutex
);
3268 __iwl_mvm_remove_chanctx(mvm
, ctx
);
3269 mutex_unlock(&mvm
->mutex
);
3272 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
3273 struct ieee80211_chanctx_conf
*ctx
,
3276 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3277 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3278 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3280 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
3281 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
3282 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
3283 IEEE80211_CHANCTX_CHANGE_RADAR
|
3284 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH
)),
3285 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3286 phy_ctxt
->ref
, changed
))
3289 mutex_lock(&mvm
->mutex
);
3290 iwl_mvm_bt_coex_vif_change(mvm
);
3291 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
3292 ctx
->rx_chains_static
,
3293 ctx
->rx_chains_dynamic
);
3294 mutex_unlock(&mvm
->mutex
);
3297 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm
*mvm
,
3298 struct ieee80211_vif
*vif
,
3299 struct ieee80211_chanctx_conf
*ctx
,
3300 bool switching_chanctx
)
3302 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3303 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3304 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3307 lockdep_assert_held(&mvm
->mutex
);
3309 mvmvif
->phy_ctxt
= phy_ctxt
;
3311 switch (vif
->type
) {
3312 case NL80211_IFTYPE_AP
:
3313 /* only needed if we're switching chanctx (i.e. during CSA) */
3314 if (switching_chanctx
) {
3315 mvmvif
->ap_ibss_active
= true;
3318 case NL80211_IFTYPE_ADHOC
:
3320 * The AP binding flow is handled as part of the start_ap flow
3321 * (in bss_info_changed), similarly for IBSS.
3325 case NL80211_IFTYPE_STATION
:
3327 case NL80211_IFTYPE_MONITOR
:
3328 /* always disable PS when a monitor interface is active */
3329 mvmvif
->ps_disabled
= true;
3336 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3341 * Power state must be updated before quotas,
3342 * otherwise fw will complain.
3344 iwl_mvm_power_update_mac(mvm
);
3346 /* Setting the quota at this stage is only required for monitor
3347 * interfaces. For the other types, the bss_info changed flow
3348 * will handle quota settings.
3350 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
3351 mvmvif
->monitor_active
= true;
3352 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
3354 goto out_remove_binding
;
3356 ret
= iwl_mvm_add_snif_sta(mvm
, vif
);
3358 goto out_remove_binding
;
3362 /* Handle binding during CSA */
3363 if (vif
->type
== NL80211_IFTYPE_AP
) {
3364 iwl_mvm_update_quotas(mvm
, false, NULL
);
3365 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
3368 if (switching_chanctx
&& vif
->type
== NL80211_IFTYPE_STATION
) {
3369 u32 duration
= 2 * vif
->bss_conf
.beacon_int
;
3371 /* iwl_mvm_protect_session() reads directly from the
3372 * device (the system time), so make sure it is
3375 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PROTECT_CSA
);
3377 goto out_remove_binding
;
3379 /* Protect the session to make sure we hear the first
3380 * beacon on the new channel.
3382 iwl_mvm_protect_session(mvm
, vif
, duration
, duration
,
3383 vif
->bss_conf
.beacon_int
/ 2,
3386 iwl_mvm_unref(mvm
, IWL_MVM_REF_PROTECT_CSA
);
3388 iwl_mvm_update_quotas(mvm
, false, NULL
);
3394 iwl_mvm_binding_remove_vif(mvm
, vif
);
3395 iwl_mvm_power_update_mac(mvm
);
3398 mvmvif
->phy_ctxt
= NULL
;
3401 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
3402 struct ieee80211_vif
*vif
,
3403 struct ieee80211_chanctx_conf
*ctx
)
3405 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3408 mutex_lock(&mvm
->mutex
);
3409 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vif
, ctx
, false);
3410 mutex_unlock(&mvm
->mutex
);
3415 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm
*mvm
,
3416 struct ieee80211_vif
*vif
,
3417 struct ieee80211_chanctx_conf
*ctx
,
3418 bool switching_chanctx
)
3420 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3421 struct ieee80211_vif
*disabled_vif
= NULL
;
3423 lockdep_assert_held(&mvm
->mutex
);
3425 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
3427 switch (vif
->type
) {
3428 case NL80211_IFTYPE_ADHOC
:
3430 case NL80211_IFTYPE_MONITOR
:
3431 mvmvif
->monitor_active
= false;
3432 mvmvif
->ps_disabled
= false;
3433 iwl_mvm_rm_snif_sta(mvm
, vif
);
3435 case NL80211_IFTYPE_AP
:
3436 /* This part is triggered only during CSA */
3437 if (!switching_chanctx
|| !mvmvif
->ap_ibss_active
)
3440 mvmvif
->csa_countdown
= false;
3442 /* Set CS bit on all the stations */
3443 iwl_mvm_modify_all_sta_disable_tx(mvm
, mvmvif
, true);
3445 /* Save blocked iface, the timeout is set on the next beacon */
3446 rcu_assign_pointer(mvm
->csa_tx_blocked_vif
, vif
);
3448 mvmvif
->ap_ibss_active
= false;
3450 case NL80211_IFTYPE_STATION
:
3451 if (!switching_chanctx
)
3456 iwl_mvm_mac_ctxt_changed(mvm
, vif
, true, NULL
);
3462 iwl_mvm_update_quotas(mvm
, false, disabled_vif
);
3463 iwl_mvm_binding_remove_vif(mvm
, vif
);
3466 mvmvif
->phy_ctxt
= NULL
;
3467 iwl_mvm_power_update_mac(mvm
);
3470 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
3471 struct ieee80211_vif
*vif
,
3472 struct ieee80211_chanctx_conf
*ctx
)
3474 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3476 mutex_lock(&mvm
->mutex
);
3477 __iwl_mvm_unassign_vif_chanctx(mvm
, vif
, ctx
, false);
3478 mutex_unlock(&mvm
->mutex
);
3482 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm
*mvm
,
3483 struct ieee80211_vif_chanctx_switch
*vifs
)
3487 mutex_lock(&mvm
->mutex
);
3488 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
3489 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].old_ctx
);
3491 ret
= __iwl_mvm_add_chanctx(mvm
, vifs
[0].new_ctx
);
3493 IWL_ERR(mvm
, "failed to add new_ctx during channel switch\n");
3497 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
3501 "failed to assign new_ctx during channel switch\n");
3505 /* we don't support TDLS during DCM - can be caused by channel switch */
3506 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
3507 iwl_mvm_teardown_tdls_peers(mvm
);
3512 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].new_ctx
);
3515 if (__iwl_mvm_add_chanctx(mvm
, vifs
[0].old_ctx
)) {
3516 IWL_ERR(mvm
, "failed to add old_ctx back after failure.\n");
3520 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3522 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3529 /* things keep failing, better restart the hw */
3530 iwl_mvm_nic_restart(mvm
, false);
3533 mutex_unlock(&mvm
->mutex
);
3539 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm
*mvm
,
3540 struct ieee80211_vif_chanctx_switch
*vifs
)
3544 mutex_lock(&mvm
->mutex
);
3545 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
3547 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
3551 "failed to assign new_ctx during channel switch\n");
3558 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3560 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3567 /* things keep failing, better restart the hw */
3568 iwl_mvm_nic_restart(mvm
, false);
3571 mutex_unlock(&mvm
->mutex
);
3576 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw
*hw
,
3577 struct ieee80211_vif_chanctx_switch
*vifs
,
3579 enum ieee80211_chanctx_switch_mode mode
)
3581 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3584 /* we only support a single-vif right now */
3589 case CHANCTX_SWMODE_SWAP_CONTEXTS
:
3590 ret
= iwl_mvm_switch_vif_chanctx_swap(mvm
, vifs
);
3592 case CHANCTX_SWMODE_REASSIGN_VIF
:
3593 ret
= iwl_mvm_switch_vif_chanctx_reassign(mvm
, vifs
);
3603 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
3604 struct ieee80211_sta
*sta
,
3607 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3608 struct iwl_mvm_sta
*mvm_sta
= iwl_mvm_sta_from_mac80211(sta
);
3610 if (!mvm_sta
|| !mvm_sta
->vif
) {
3611 IWL_ERR(mvm
, "Station is not associated to a vif\n");
3615 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
3618 #ifdef CONFIG_NL80211_TESTMODE
3619 static const struct nla_policy iwl_mvm_tm_policy
[IWL_MVM_TM_ATTR_MAX
+ 1] = {
3620 [IWL_MVM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
3621 [IWL_MVM_TM_ATTR_NOA_DURATION
] = { .type
= NLA_U32
},
3622 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
] = { .type
= NLA_U32
},
3625 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm
*mvm
,
3626 struct ieee80211_vif
*vif
,
3627 void *data
, int len
)
3629 struct nlattr
*tb
[IWL_MVM_TM_ATTR_MAX
+ 1];
3633 err
= nla_parse(tb
, IWL_MVM_TM_ATTR_MAX
, data
, len
, iwl_mvm_tm_policy
);
3637 if (!tb
[IWL_MVM_TM_ATTR_CMD
])
3640 switch (nla_get_u32(tb
[IWL_MVM_TM_ATTR_CMD
])) {
3641 case IWL_MVM_TM_CMD_SET_NOA
:
3642 if (!vif
|| vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
||
3643 !vif
->bss_conf
.enable_beacon
||
3644 !tb
[IWL_MVM_TM_ATTR_NOA_DURATION
])
3647 noa_duration
= nla_get_u32(tb
[IWL_MVM_TM_ATTR_NOA_DURATION
]);
3648 if (noa_duration
>= vif
->bss_conf
.beacon_int
)
3651 mvm
->noa_duration
= noa_duration
;
3654 return iwl_mvm_update_quotas(mvm
, false, NULL
);
3655 case IWL_MVM_TM_CMD_SET_BEACON_FILTER
:
3656 /* must be associated client vif - ignore authorized */
3657 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
||
3658 !vif
->bss_conf
.assoc
|| !vif
->bss_conf
.dtim_period
||
3659 !tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
])
3662 if (nla_get_u32(tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
]))
3663 return iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
3664 return iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3670 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw
*hw
,
3671 struct ieee80211_vif
*vif
,
3672 void *data
, int len
)
3674 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3677 mutex_lock(&mvm
->mutex
);
3678 err
= __iwl_mvm_mac_testmode_cmd(mvm
, vif
, data
, len
);
3679 mutex_unlock(&mvm
->mutex
);
3685 static void iwl_mvm_channel_switch(struct ieee80211_hw
*hw
,
3686 struct ieee80211_vif
*vif
,
3687 struct ieee80211_channel_switch
*chsw
)
3689 /* By implementing this operation, we prevent mac80211 from
3690 * starting its own channel switch timer, so that we can call
3691 * ieee80211_chswitch_done() ourselves at the right time
3692 * (which is when the absence time event starts).
3695 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw
),
3696 "dummy channel switch op\n");
3699 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw
*hw
,
3700 struct ieee80211_vif
*vif
,
3701 struct ieee80211_channel_switch
*chsw
)
3703 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3704 struct ieee80211_vif
*csa_vif
;
3705 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3709 mutex_lock(&mvm
->mutex
);
3711 mvmvif
->csa_failed
= false;
3713 IWL_DEBUG_MAC80211(mvm
, "pre CSA to freq %d\n",
3714 chsw
->chandef
.center_freq1
);
3716 iwl_fw_dbg_trigger_simple_stop(mvm
, vif
, FW_DBG_TRIGGER_CHANNEL_SWITCH
);
3718 switch (vif
->type
) {
3719 case NL80211_IFTYPE_AP
:
3721 rcu_dereference_protected(mvm
->csa_vif
,
3722 lockdep_is_held(&mvm
->mutex
));
3723 if (WARN_ONCE(csa_vif
&& csa_vif
->csa_active
,
3724 "Another CSA is already in progress")) {
3729 /* we still didn't unblock tx. prevent new CS meanwhile */
3730 if (rcu_dereference_protected(mvm
->csa_tx_blocked_vif
,
3731 lockdep_is_held(&mvm
->mutex
))) {
3736 rcu_assign_pointer(mvm
->csa_vif
, vif
);
3738 if (WARN_ONCE(mvmvif
->csa_countdown
,
3739 "Previous CSA countdown didn't complete")) {
3744 mvmvif
->csa_target_freq
= chsw
->chandef
.chan
->center_freq
;
3747 case NL80211_IFTYPE_STATION
:
3748 if (mvmvif
->lqm_active
)
3749 iwl_mvm_send_lqm_cmd(vif
,
3750 LQM_CMD_OPERATION_STOP_MEASUREMENT
,
3753 /* Schedule the time event to a bit before beacon 1,
3754 * to make sure we're in the new channel when the
3757 apply_time
= chsw
->device_timestamp
+
3758 ((vif
->bss_conf
.beacon_int
* (chsw
->count
- 1) -
3759 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT
) * 1024);
3762 iwl_mvm_csa_client_absent(mvm
, vif
);
3764 iwl_mvm_schedule_csa_period(mvm
, vif
, vif
->bss_conf
.beacon_int
,
3766 if (mvmvif
->bf_data
.bf_enabled
) {
3767 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3777 mvmvif
->ps_disabled
= true;
3779 ret
= iwl_mvm_power_update_ps(mvm
);
3783 /* we won't be on this channel any longer */
3784 iwl_mvm_teardown_tdls_peers(mvm
);
3787 mutex_unlock(&mvm
->mutex
);
3792 static int iwl_mvm_post_channel_switch(struct ieee80211_hw
*hw
,
3793 struct ieee80211_vif
*vif
)
3795 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3796 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3799 mutex_lock(&mvm
->mutex
);
3801 if (mvmvif
->csa_failed
) {
3802 mvmvif
->csa_failed
= false;
3807 if (vif
->type
== NL80211_IFTYPE_STATION
) {
3808 struct iwl_mvm_sta
*mvmsta
;
3810 mvmsta
= iwl_mvm_sta_from_staid_protected(mvm
,
3813 if (WARN_ON(!mvmsta
)) {
3818 iwl_mvm_sta_modify_disable_tx(mvm
, mvmsta
, false);
3820 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
3822 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
3826 iwl_mvm_stop_session_protection(mvm
, vif
);
3829 mvmvif
->ps_disabled
= false;
3831 ret
= iwl_mvm_power_update_ps(mvm
);
3834 mutex_unlock(&mvm
->mutex
);
3839 static void iwl_mvm_mac_flush(struct ieee80211_hw
*hw
,
3840 struct ieee80211_vif
*vif
, u32 queues
, bool drop
)
3842 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3843 struct iwl_mvm_vif
*mvmvif
;
3844 struct iwl_mvm_sta
*mvmsta
;
3845 struct ieee80211_sta
*sta
;
3849 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
)
3852 /* Make sure we're done with the deferred traffic before flushing */
3853 if (iwl_mvm_is_dqa_supported(mvm
))
3854 flush_work(&mvm
->add_stream_wk
);
3856 mutex_lock(&mvm
->mutex
);
3857 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3859 /* flush the AP-station and all TDLS peers */
3860 for (i
= 0; i
< IWL_MVM_STATION_COUNT
; i
++) {
3861 sta
= rcu_dereference_protected(mvm
->fw_id_to_mac_id
[i
],
3862 lockdep_is_held(&mvm
->mutex
));
3863 if (IS_ERR_OR_NULL(sta
))
3866 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
3867 if (mvmsta
->vif
!= vif
)
3870 /* make sure only TDLS peers or the AP are flushed */
3871 WARN_ON(i
!= mvmvif
->ap_sta_id
&& !sta
->tdls
);
3873 msk
|= mvmsta
->tfd_queue_msk
;
3877 if (iwl_mvm_flush_tx_path(mvm
, msk
, 0))
3878 IWL_ERR(mvm
, "flush request fail\n");
3879 mutex_unlock(&mvm
->mutex
);
3881 mutex_unlock(&mvm
->mutex
);
3883 /* this can take a while, and we may need/want other operations
3884 * to succeed while doing this, so do it without the mutex held
3886 iwl_trans_wait_tx_queue_empty(mvm
->trans
, msk
);
3890 static int iwl_mvm_mac_get_survey(struct ieee80211_hw
*hw
, int idx
,
3891 struct survey_info
*survey
)
3893 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3896 memset(survey
, 0, sizeof(*survey
));
3898 /* only support global statistics right now */
3902 if (!fw_has_capa(&mvm
->fw
->ucode_capa
,
3903 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS
))
3906 mutex_lock(&mvm
->mutex
);
3908 if (mvm
->ucode_loaded
) {
3909 ret
= iwl_mvm_request_statistics(mvm
, false);
3914 survey
->filled
= SURVEY_INFO_TIME
|
3915 SURVEY_INFO_TIME_RX
|
3916 SURVEY_INFO_TIME_TX
|
3917 SURVEY_INFO_TIME_SCAN
;
3918 survey
->time
= mvm
->accu_radio_stats
.on_time_rf
+
3919 mvm
->radio_stats
.on_time_rf
;
3920 do_div(survey
->time
, USEC_PER_MSEC
);
3922 survey
->time_rx
= mvm
->accu_radio_stats
.rx_time
+
3923 mvm
->radio_stats
.rx_time
;
3924 do_div(survey
->time_rx
, USEC_PER_MSEC
);
3926 survey
->time_tx
= mvm
->accu_radio_stats
.tx_time
+
3927 mvm
->radio_stats
.tx_time
;
3928 do_div(survey
->time_tx
, USEC_PER_MSEC
);
3930 survey
->time_scan
= mvm
->accu_radio_stats
.on_time_scan
+
3931 mvm
->radio_stats
.on_time_scan
;
3932 do_div(survey
->time_scan
, USEC_PER_MSEC
);
3936 mutex_unlock(&mvm
->mutex
);
3940 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw
*hw
,
3941 struct ieee80211_vif
*vif
,
3942 struct ieee80211_sta
*sta
,
3943 struct station_info
*sinfo
)
3945 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3946 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3947 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
3949 if (mvmsta
->avg_energy
) {
3950 sinfo
->signal_avg
= mvmsta
->avg_energy
;
3951 sinfo
->filled
|= BIT(NL80211_STA_INFO_SIGNAL_AVG
);
3954 if (!fw_has_capa(&mvm
->fw
->ucode_capa
,
3955 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS
))
3958 /* if beacon filtering isn't on mac80211 does it anyway */
3959 if (!(vif
->driver_flags
& IEEE80211_VIF_BEACON_FILTER
))
3962 if (!vif
->bss_conf
.assoc
)
3965 mutex_lock(&mvm
->mutex
);
3967 if (mvmvif
->ap_sta_id
!= mvmsta
->sta_id
)
3970 if (iwl_mvm_request_statistics(mvm
, false))
3973 sinfo
->rx_beacon
= mvmvif
->beacon_stats
.num_beacons
+
3974 mvmvif
->beacon_stats
.accu_num_beacons
;
3975 sinfo
->filled
|= BIT(NL80211_STA_INFO_BEACON_RX
);
3976 if (mvmvif
->beacon_stats
.avg_signal
) {
3977 /* firmware only reports a value after RXing a few beacons */
3978 sinfo
->rx_beacon_signal_avg
= mvmvif
->beacon_stats
.avg_signal
;
3979 sinfo
->filled
|= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG
);
3982 mutex_unlock(&mvm
->mutex
);
3985 static void iwl_mvm_event_mlme_callback(struct iwl_mvm
*mvm
,
3986 struct ieee80211_vif
*vif
,
3987 const struct ieee80211_event
*event
)
3989 #define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
3991 if ((_cnt) && --(_cnt)) \
3993 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
3996 struct iwl_fw_dbg_trigger_tlv
*trig
;
3997 struct iwl_fw_dbg_trigger_mlme
*trig_mlme
;
3999 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_MLME
))
4002 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_MLME
);
4003 trig_mlme
= (void *)trig
->data
;
4004 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
4007 if (event
->u
.mlme
.data
== ASSOC_EVENT
) {
4008 if (event
->u
.mlme
.status
== MLME_DENIED
)
4009 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
4010 trig_mlme
->stop_assoc_denied
,
4011 "DENIED ASSOC: reason %d",
4012 event
->u
.mlme
.reason
);
4013 else if (event
->u
.mlme
.status
== MLME_TIMEOUT
)
4014 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
4015 trig_mlme
->stop_assoc_timeout
,
4017 } else if (event
->u
.mlme
.data
== AUTH_EVENT
) {
4018 if (event
->u
.mlme
.status
== MLME_DENIED
)
4019 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
4020 trig_mlme
->stop_auth_denied
,
4021 "DENIED AUTH: reason %d",
4022 event
->u
.mlme
.reason
);
4023 else if (event
->u
.mlme
.status
== MLME_TIMEOUT
)
4024 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
4025 trig_mlme
->stop_auth_timeout
,
4027 } else if (event
->u
.mlme
.data
== DEAUTH_RX_EVENT
) {
4028 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
4029 trig_mlme
->stop_rx_deauth
,
4030 "DEAUTH RX %d", event
->u
.mlme
.reason
);
4031 } else if (event
->u
.mlme
.data
== DEAUTH_TX_EVENT
) {
4032 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
4033 trig_mlme
->stop_tx_deauth
,
4034 "DEAUTH TX %d", event
->u
.mlme
.reason
);
4036 #undef CHECK_MLME_TRIGGER
4039 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm
*mvm
,
4040 struct ieee80211_vif
*vif
,
4041 const struct ieee80211_event
*event
)
4043 struct iwl_fw_dbg_trigger_tlv
*trig
;
4044 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
4046 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
4049 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
4050 ba_trig
= (void *)trig
->data
;
4051 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
4054 if (!(le16_to_cpu(ba_trig
->rx_bar
) & BIT(event
->u
.ba
.tid
)))
4057 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
4058 "BAR received from %pM, tid %d, ssn %d",
4059 event
->u
.ba
.sta
->addr
, event
->u
.ba
.tid
,
4064 iwl_mvm_event_frame_timeout_callback(struct iwl_mvm
*mvm
,
4065 struct ieee80211_vif
*vif
,
4066 const struct ieee80211_event
*event
)
4068 struct iwl_fw_dbg_trigger_tlv
*trig
;
4069 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
4071 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
4074 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
4075 ba_trig
= (void *)trig
->data
;
4076 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
4079 if (!(le16_to_cpu(ba_trig
->frame_timeout
) & BIT(event
->u
.ba
.tid
)))
4082 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
4083 "Frame from %pM timed out, tid %d",
4084 event
->u
.ba
.sta
->addr
, event
->u
.ba
.tid
);
4087 static void iwl_mvm_mac_event_callback(struct ieee80211_hw
*hw
,
4088 struct ieee80211_vif
*vif
,
4089 const struct ieee80211_event
*event
)
4091 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
4093 switch (event
->type
) {
4095 iwl_mvm_event_mlme_callback(mvm
, vif
, event
);
4098 iwl_mvm_event_bar_rx_callback(mvm
, vif
, event
);
4100 case BA_FRAME_TIMEOUT
:
4101 iwl_mvm_event_frame_timeout_callback(mvm
, vif
, event
);
4108 void iwl_mvm_sync_rx_queues_internal(struct iwl_mvm
*mvm
,
4109 struct iwl_mvm_internal_rxq_notif
*notif
,
4112 DECLARE_WAIT_QUEUE_HEAD_ONSTACK(notif_waitq
);
4113 u32 qmask
= BIT(mvm
->trans
->num_rx_queues
) - 1;
4116 lockdep_assert_held(&mvm
->mutex
);
4118 if (!iwl_mvm_has_new_rx_api(mvm
))
4121 notif
->cookie
= mvm
->queue_sync_cookie
;
4124 atomic_set(&mvm
->queue_sync_counter
,
4125 mvm
->trans
->num_rx_queues
);
4127 ret
= iwl_mvm_notify_rx_queue(mvm
, qmask
, (u8
*)notif
, size
);
4129 IWL_ERR(mvm
, "Failed to trigger RX queues sync (%d)\n", ret
);
4134 ret
= wait_event_timeout(notif_waitq
,
4135 atomic_read(&mvm
->queue_sync_counter
) == 0,
4140 atomic_set(&mvm
->queue_sync_counter
, 0);
4141 mvm
->queue_sync_cookie
++;
4144 static void iwl_mvm_sync_rx_queues(struct ieee80211_hw
*hw
)
4146 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
4147 struct iwl_mvm_internal_rxq_notif data
= {
4148 .type
= IWL_MVM_RXQ_EMPTY
,
4152 mutex_lock(&mvm
->mutex
);
4153 iwl_mvm_sync_rx_queues_internal(mvm
, &data
, sizeof(data
));
4154 mutex_unlock(&mvm
->mutex
);
4157 const struct ieee80211_ops iwl_mvm_hw_ops
= {
4158 .tx
= iwl_mvm_mac_tx
,
4159 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
4160 .start
= iwl_mvm_mac_start
,
4161 .reconfig_complete
= iwl_mvm_mac_reconfig_complete
,
4162 .stop
= iwl_mvm_mac_stop
,
4163 .add_interface
= iwl_mvm_mac_add_interface
,
4164 .remove_interface
= iwl_mvm_mac_remove_interface
,
4165 .config
= iwl_mvm_mac_config
,
4166 .prepare_multicast
= iwl_mvm_prepare_multicast
,
4167 .configure_filter
= iwl_mvm_configure_filter
,
4168 .config_iface_filter
= iwl_mvm_config_iface_filter
,
4169 .bss_info_changed
= iwl_mvm_bss_info_changed
,
4170 .hw_scan
= iwl_mvm_mac_hw_scan
,
4171 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
4172 .sta_pre_rcu_remove
= iwl_mvm_sta_pre_rcu_remove
,
4173 .sta_state
= iwl_mvm_mac_sta_state
,
4174 .sta_notify
= iwl_mvm_mac_sta_notify
,
4175 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
4176 .release_buffered_frames
= iwl_mvm_mac_release_buffered_frames
,
4177 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
4178 .sta_rc_update
= iwl_mvm_sta_rc_update
,
4179 .conf_tx
= iwl_mvm_mac_conf_tx
,
4180 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
4181 .mgd_protect_tdls_discover
= iwl_mvm_mac_mgd_protect_tdls_discover
,
4182 .flush
= iwl_mvm_mac_flush
,
4183 .sched_scan_start
= iwl_mvm_mac_sched_scan_start
,
4184 .sched_scan_stop
= iwl_mvm_mac_sched_scan_stop
,
4185 .set_key
= iwl_mvm_mac_set_key
,
4186 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
4187 .remain_on_channel
= iwl_mvm_roc
,
4188 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
4189 .add_chanctx
= iwl_mvm_add_chanctx
,
4190 .remove_chanctx
= iwl_mvm_remove_chanctx
,
4191 .change_chanctx
= iwl_mvm_change_chanctx
,
4192 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
4193 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
4194 .switch_vif_chanctx
= iwl_mvm_switch_vif_chanctx
,
4196 .start_ap
= iwl_mvm_start_ap_ibss
,
4197 .stop_ap
= iwl_mvm_stop_ap_ibss
,
4198 .join_ibss
= iwl_mvm_start_ap_ibss
,
4199 .leave_ibss
= iwl_mvm_stop_ap_ibss
,
4201 .set_tim
= iwl_mvm_set_tim
,
4203 .channel_switch
= iwl_mvm_channel_switch
,
4204 .pre_channel_switch
= iwl_mvm_pre_channel_switch
,
4205 .post_channel_switch
= iwl_mvm_post_channel_switch
,
4207 .tdls_channel_switch
= iwl_mvm_tdls_channel_switch
,
4208 .tdls_cancel_channel_switch
= iwl_mvm_tdls_cancel_channel_switch
,
4209 .tdls_recv_channel_switch
= iwl_mvm_tdls_recv_channel_switch
,
4211 .event_callback
= iwl_mvm_mac_event_callback
,
4213 .sync_rx_queues
= iwl_mvm_sync_rx_queues
,
4215 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd
)
4217 #ifdef CONFIG_PM_SLEEP
4219 .suspend
= iwl_mvm_suspend
,
4220 .resume
= iwl_mvm_resume
,
4221 .set_wakeup
= iwl_mvm_set_wakeup
,
4222 .set_rekey_data
= iwl_mvm_set_rekey_data
,
4223 #if IS_ENABLED(CONFIG_IPV6)
4224 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
4226 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,
4228 .get_survey
= iwl_mvm_mac_get_survey
,
4229 .sta_statistics
= iwl_mvm_mac_sta_statistics
,