1 /******************************************************************************
3 * This file is provided under a dual BSD/GPLv2 license. When using or
4 * redistributing this file, you may do so under either license.
8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of version 2 of the GNU General Public License as
13 * published by the Free Software Foundation.
15 * This program is distributed in the hope that it will be useful, but
16 * WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110,
25 * The full GNU General Public License is included in this distribution
26 * in the file called COPYING.
28 * Contact Information:
29 * Intel Linux Wireless <ilw@linux.intel.com>
30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH
36 * All rights reserved.
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions
42 * * Redistributions of source code must retain the above copyright
43 * notice, this list of conditions and the following disclaimer.
44 * * Redistributions in binary form must reproduce the above copyright
45 * notice, this list of conditions and the following disclaimer in
46 * the documentation and/or other materials provided with the
48 * * Neither the name Intel Corporation nor the names of its
49 * contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
64 *****************************************************************************/
65 #include <linux/kernel.h>
66 #include <linux/slab.h>
67 #include <linux/skbuff.h>
68 #include <linux/netdevice.h>
69 #include <linux/etherdevice.h>
71 #include <linux/if_arp.h>
72 #include <linux/devcoredump.h>
73 #include <net/mac80211.h>
74 #include <net/ieee80211_radiotap.h>
77 #include "iwl-op-mode.h"
81 #include "time-event.h"
82 #include "iwl-eeprom-parse.h"
83 #include "iwl-phy-db.h"
85 #include "iwl-fw-error-dump.h"
88 #include "iwl-nvm-parse.h"
90 static const struct ieee80211_iface_limit iwl_mvm_limits
[] = {
93 .types
= BIT(NL80211_IFTYPE_STATION
),
97 .types
= BIT(NL80211_IFTYPE_AP
) |
98 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
99 BIT(NL80211_IFTYPE_P2P_GO
),
103 .types
= BIT(NL80211_IFTYPE_P2P_DEVICE
),
107 static const struct ieee80211_iface_combination iwl_mvm_iface_combinations
[] = {
109 .num_different_channels
= 2,
111 .limits
= iwl_mvm_limits
,
112 .n_limits
= ARRAY_SIZE(iwl_mvm_limits
),
116 #ifdef CONFIG_PM_SLEEP
117 static const struct nl80211_wowlan_tcp_data_token_feature
118 iwl_mvm_wowlan_tcp_token_feature
= {
121 .bufsize
= IWL_WOWLAN_REMOTE_WAKE_MAX_TOKENS
,
124 static const struct wiphy_wowlan_tcp_support iwl_mvm_wowlan_tcp_support
= {
125 .tok
= &iwl_mvm_wowlan_tcp_token_feature
,
126 .data_payload_max
= IWL_WOWLAN_TCP_MAX_PACKET_LEN
-
127 sizeof(struct ethhdr
) -
128 sizeof(struct iphdr
) -
129 sizeof(struct tcphdr
),
130 .data_interval_max
= 65535, /* __le16 in API */
131 .wake_payload_max
= IWL_WOWLAN_REMOTE_WAKE_MAX_PACKET_LEN
-
132 sizeof(struct ethhdr
) -
133 sizeof(struct iphdr
) -
134 sizeof(struct tcphdr
),
139 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
141 * Use the reserved field to indicate magic values.
142 * these values will only be used internally by the driver,
143 * and won't make it to the fw (reserved will be 0).
144 * BC_FILTER_MAGIC_IP - configure the val of this attribute to
145 * be the vif's ip address. in case there is not a single
146 * ip address (0, or more than 1), this attribute will
148 * BC_FILTER_MAGIC_MAC - set the val of this attribute to
149 * the LSB bytes of the vif's mac address
152 BC_FILTER_MAGIC_NONE
= 0,
157 static const struct iwl_fw_bcast_filter iwl_mvm_default_bcast_filters
[] = {
161 .frame_type
= BCAST_FILTER_FRAME_TYPE_ALL
,
164 /* frame type - arp, hw type - ethernet */
166 BCAST_FILTER_OFFSET_PAYLOAD_START
,
167 .offset
= sizeof(rfc1042_header
),
168 .val
= cpu_to_be32(0x08060001),
169 .mask
= cpu_to_be32(0xffffffff),
174 BCAST_FILTER_OFFSET_PAYLOAD_START
,
175 .offset
= sizeof(rfc1042_header
) + 2 +
176 sizeof(struct arphdr
) +
177 ETH_ALEN
+ sizeof(__be32
) +
179 .mask
= cpu_to_be32(0xffffffff),
180 /* mark it as special field */
181 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_IP
),
186 /* dhcp offer bcast */
188 .frame_type
= BCAST_FILTER_FRAME_TYPE_IPV4
,
191 /* udp dest port - 68 (bootp client)*/
192 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
193 .offset
= offsetof(struct udphdr
, dest
),
194 .val
= cpu_to_be32(0x00440000),
195 .mask
= cpu_to_be32(0xffff0000),
198 /* dhcp - lsb bytes of client hw address */
199 .offset_type
= BCAST_FILTER_OFFSET_IP_END
,
201 .mask
= cpu_to_be32(0xffffffff),
202 /* mark it as special field */
203 .reserved1
= cpu_to_le16(BC_FILTER_MAGIC_MAC
),
207 /* last filter must be empty */
212 void iwl_mvm_ref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
214 if (!iwl_mvm_is_d0i3_supported(mvm
))
217 IWL_DEBUG_RPM(mvm
, "Take mvm reference - type %d\n", ref_type
);
218 spin_lock_bh(&mvm
->refs_lock
);
219 mvm
->refs
[ref_type
]++;
220 spin_unlock_bh(&mvm
->refs_lock
);
221 iwl_trans_ref(mvm
->trans
);
224 void iwl_mvm_unref(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
226 if (!iwl_mvm_is_d0i3_supported(mvm
))
229 IWL_DEBUG_RPM(mvm
, "Leave mvm reference - type %d\n", ref_type
);
230 spin_lock_bh(&mvm
->refs_lock
);
231 WARN_ON(!mvm
->refs
[ref_type
]--);
232 spin_unlock_bh(&mvm
->refs_lock
);
233 iwl_trans_unref(mvm
->trans
);
236 static void iwl_mvm_unref_all_except(struct iwl_mvm
*mvm
,
237 enum iwl_mvm_ref_type except_ref
)
241 if (!iwl_mvm_is_d0i3_supported(mvm
))
244 spin_lock_bh(&mvm
->refs_lock
);
245 for (i
= 0; i
< IWL_MVM_REF_COUNT
; i
++) {
246 if (except_ref
== i
|| !mvm
->refs
[i
])
249 IWL_DEBUG_RPM(mvm
, "Cleanup: remove mvm ref type %d (%d)\n",
251 for (j
= 0; j
< mvm
->refs
[i
]; j
++)
252 iwl_trans_unref(mvm
->trans
);
255 spin_unlock_bh(&mvm
->refs_lock
);
258 bool iwl_mvm_ref_taken(struct iwl_mvm
*mvm
)
263 if (!iwl_mvm_is_d0i3_supported(mvm
))
266 spin_lock_bh(&mvm
->refs_lock
);
267 for (i
= 0; i
< IWL_MVM_REF_COUNT
; i
++) {
273 spin_unlock_bh(&mvm
->refs_lock
);
278 int iwl_mvm_ref_sync(struct iwl_mvm
*mvm
, enum iwl_mvm_ref_type ref_type
)
280 iwl_mvm_ref(mvm
, ref_type
);
282 if (!wait_event_timeout(mvm
->d0i3_exit_waitq
,
283 !test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
),
286 iwl_mvm_unref(mvm
, ref_type
);
293 static void iwl_mvm_reset_phy_ctxts(struct iwl_mvm
*mvm
)
297 memset(mvm
->phy_ctxts
, 0, sizeof(mvm
->phy_ctxts
));
298 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
299 mvm
->phy_ctxts
[i
].id
= i
;
300 mvm
->phy_ctxts
[i
].ref
= 0;
304 struct ieee80211_regdomain
*iwl_mvm_get_regdomain(struct wiphy
*wiphy
,
306 enum iwl_mcc_source src_id
,
309 struct ieee80211_regdomain
*regd
= NULL
;
310 struct ieee80211_hw
*hw
= wiphy_to_ieee80211_hw(wiphy
);
311 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
312 struct iwl_mcc_update_resp
*resp
;
314 IWL_DEBUG_LAR(mvm
, "Getting regdomain data for %s from FW\n", alpha2
);
316 lockdep_assert_held(&mvm
->mutex
);
318 resp
= iwl_mvm_update_mcc(mvm
, alpha2
, src_id
);
319 if (IS_ERR_OR_NULL(resp
)) {
320 IWL_DEBUG_LAR(mvm
, "Could not get update from FW %d\n",
321 PTR_ERR_OR_ZERO(resp
));
326 *changed
= (resp
->status
== MCC_RESP_NEW_CHAN_PROFILE
);
328 regd
= iwl_parse_nvm_mcc_info(mvm
->trans
->dev
, mvm
->cfg
,
329 __le32_to_cpu(resp
->n_channels
),
331 __le16_to_cpu(resp
->mcc
));
332 /* Store the return source id */
333 src_id
= resp
->source_id
;
335 if (IS_ERR_OR_NULL(regd
)) {
336 IWL_DEBUG_LAR(mvm
, "Could not get parse update from FW %d\n",
337 PTR_ERR_OR_ZERO(regd
));
341 IWL_DEBUG_LAR(mvm
, "setting alpha2 from FW to %s (0x%x, 0x%x) src=%d\n",
342 regd
->alpha2
, regd
->alpha2
[0], regd
->alpha2
[1], src_id
);
343 mvm
->lar_regdom_set
= true;
344 mvm
->mcc_src
= src_id
;
350 void iwl_mvm_update_changed_regdom(struct iwl_mvm
*mvm
)
353 struct ieee80211_regdomain
*regd
;
355 if (!iwl_mvm_is_lar_supported(mvm
))
358 regd
= iwl_mvm_get_current_regdomain(mvm
, &changed
);
359 if (!IS_ERR_OR_NULL(regd
)) {
360 /* only update the regulatory core if changed */
362 regulatory_set_wiphy_regd(mvm
->hw
->wiphy
, regd
);
368 struct ieee80211_regdomain
*iwl_mvm_get_current_regdomain(struct iwl_mvm
*mvm
,
371 return iwl_mvm_get_regdomain(mvm
->hw
->wiphy
, "ZZ",
372 iwl_mvm_is_wifi_mcc_supported(mvm
) ?
373 MCC_SOURCE_GET_CURRENT
:
374 MCC_SOURCE_OLD_FW
, changed
);
377 int iwl_mvm_init_fw_regd(struct iwl_mvm
*mvm
)
379 enum iwl_mcc_source used_src
;
380 struct ieee80211_regdomain
*regd
;
383 const struct ieee80211_regdomain
*r
=
384 rtnl_dereference(mvm
->hw
->wiphy
->regd
);
389 /* save the last source in case we overwrite it below */
390 used_src
= mvm
->mcc_src
;
391 if (iwl_mvm_is_wifi_mcc_supported(mvm
)) {
392 /* Notify the firmware we support wifi location updates */
393 regd
= iwl_mvm_get_current_regdomain(mvm
, NULL
);
394 if (!IS_ERR_OR_NULL(regd
))
398 /* Now set our last stored MCC and source */
399 regd
= iwl_mvm_get_regdomain(mvm
->hw
->wiphy
, r
->alpha2
, used_src
,
401 if (IS_ERR_OR_NULL(regd
))
404 /* update cfg80211 if the regdomain was changed */
406 ret
= regulatory_set_wiphy_regd_sync_rtnl(mvm
->hw
->wiphy
, regd
);
414 int iwl_mvm_mac_setup_register(struct iwl_mvm
*mvm
)
416 struct ieee80211_hw
*hw
= mvm
->hw
;
418 static const u32 mvm_ciphers
[] = {
419 WLAN_CIPHER_SUITE_WEP40
,
420 WLAN_CIPHER_SUITE_WEP104
,
421 WLAN_CIPHER_SUITE_TKIP
,
422 WLAN_CIPHER_SUITE_CCMP
,
425 /* Tell mac80211 our characteristics */
426 ieee80211_hw_set(hw
, SIGNAL_DBM
);
427 ieee80211_hw_set(hw
, SPECTRUM_MGMT
);
428 ieee80211_hw_set(hw
, REPORTS_TX_ACK_STATUS
);
429 ieee80211_hw_set(hw
, QUEUE_CONTROL
);
430 ieee80211_hw_set(hw
, WANT_MONITOR_VIF
);
431 ieee80211_hw_set(hw
, SUPPORTS_PS
);
432 ieee80211_hw_set(hw
, SUPPORTS_DYNAMIC_PS
);
433 ieee80211_hw_set(hw
, AMPDU_AGGREGATION
);
434 ieee80211_hw_set(hw
, TIMING_BEACON_ONLY
);
435 ieee80211_hw_set(hw
, CONNECTION_MONITOR
);
436 ieee80211_hw_set(hw
, CHANCTX_STA_CSA
);
437 ieee80211_hw_set(hw
, SUPPORT_FAST_XMIT
);
438 ieee80211_hw_set(hw
, SUPPORTS_CLONED_SKBS
);
440 hw
->queues
= mvm
->first_agg_queue
;
441 hw
->offchannel_tx_hw_queue
= IWL_MVM_OFFCHANNEL_QUEUE
;
442 hw
->radiotap_mcs_details
|= IEEE80211_RADIOTAP_MCS_HAVE_FEC
|
443 IEEE80211_RADIOTAP_MCS_HAVE_STBC
;
444 hw
->radiotap_vht_details
|= IEEE80211_RADIOTAP_VHT_KNOWN_STBC
|
445 IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED
;
446 hw
->rate_control_algorithm
= "iwl-mvm-rs";
447 hw
->uapsd_queues
= IWL_MVM_UAPSD_QUEUES
;
448 hw
->uapsd_max_sp_len
= IWL_UAPSD_MAX_SP
;
450 BUILD_BUG_ON(ARRAY_SIZE(mvm
->ciphers
) < ARRAY_SIZE(mvm_ciphers
) + 2);
451 memcpy(mvm
->ciphers
, mvm_ciphers
, sizeof(mvm_ciphers
));
452 hw
->wiphy
->n_cipher_suites
= ARRAY_SIZE(mvm_ciphers
);
453 hw
->wiphy
->cipher_suites
= mvm
->ciphers
;
456 * Enable 11w if advertised by firmware and software crypto
457 * is not enabled (as the firmware will interpret some mgmt
458 * packets, so enabling it with software crypto isn't safe)
460 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_MFP
&&
461 !iwlwifi_mod_params
.sw_crypto
) {
462 ieee80211_hw_set(hw
, MFP_CAPABLE
);
463 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] =
464 WLAN_CIPHER_SUITE_AES_CMAC
;
465 hw
->wiphy
->n_cipher_suites
++;
468 /* currently FW API supports only one optional cipher scheme */
469 if (mvm
->fw
->cs
[0].cipher
) {
470 mvm
->hw
->n_cipher_schemes
= 1;
471 mvm
->hw
->cipher_schemes
= &mvm
->fw
->cs
[0];
472 mvm
->ciphers
[hw
->wiphy
->n_cipher_suites
] =
473 mvm
->fw
->cs
[0].cipher
;
474 hw
->wiphy
->n_cipher_suites
++;
477 ieee80211_hw_set(hw
, SINGLE_SCAN_ON_ALL_BANDS
);
478 hw
->wiphy
->features
|=
479 NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR
|
480 NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR
|
481 NL80211_FEATURE_ND_RANDOM_MAC_ADDR
;
483 hw
->sta_data_size
= sizeof(struct iwl_mvm_sta
);
484 hw
->vif_data_size
= sizeof(struct iwl_mvm_vif
);
485 hw
->chanctx_data_size
= sizeof(u16
);
487 hw
->wiphy
->interface_modes
= BIT(NL80211_IFTYPE_STATION
) |
488 BIT(NL80211_IFTYPE_P2P_CLIENT
) |
489 BIT(NL80211_IFTYPE_AP
) |
490 BIT(NL80211_IFTYPE_P2P_GO
) |
491 BIT(NL80211_IFTYPE_P2P_DEVICE
) |
492 BIT(NL80211_IFTYPE_ADHOC
);
494 hw
->wiphy
->flags
|= WIPHY_FLAG_IBSS_RSN
;
495 hw
->wiphy
->regulatory_flags
|= REGULATORY_ENABLE_RELAX_NO_IR
;
496 if (iwl_mvm_is_lar_supported(mvm
))
497 hw
->wiphy
->regulatory_flags
|= REGULATORY_WIPHY_SELF_MANAGED
;
499 hw
->wiphy
->regulatory_flags
|= REGULATORY_CUSTOM_REG
|
500 REGULATORY_DISABLE_BEACON_HINTS
;
502 if (mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_GO_UAPSD
)
503 hw
->wiphy
->flags
|= WIPHY_FLAG_AP_UAPSD
;
505 hw
->wiphy
->flags
|= WIPHY_FLAG_HAS_CHANNEL_SWITCH
;
507 hw
->wiphy
->iface_combinations
= iwl_mvm_iface_combinations
;
508 hw
->wiphy
->n_iface_combinations
=
509 ARRAY_SIZE(iwl_mvm_iface_combinations
);
511 hw
->wiphy
->max_remain_on_channel_duration
= 10000;
512 hw
->max_listen_interval
= IWL_CONN_MAX_LISTEN_INTERVAL
;
513 /* we can compensate an offset of up to 3 channels = 15 MHz */
514 hw
->wiphy
->max_adj_channel_rssi_comp
= 3 * 5;
516 /* Extract MAC address */
517 memcpy(mvm
->addresses
[0].addr
, mvm
->nvm_data
->hw_addr
, ETH_ALEN
);
518 hw
->wiphy
->addresses
= mvm
->addresses
;
519 hw
->wiphy
->n_addresses
= 1;
521 /* Extract additional MAC addresses if available */
522 num_mac
= (mvm
->nvm_data
->n_hw_addrs
> 1) ?
523 min(IWL_MVM_MAX_ADDRESSES
, mvm
->nvm_data
->n_hw_addrs
) : 1;
525 for (i
= 1; i
< num_mac
; i
++) {
526 memcpy(mvm
->addresses
[i
].addr
, mvm
->addresses
[i
-1].addr
,
528 mvm
->addresses
[i
].addr
[5]++;
529 hw
->wiphy
->n_addresses
++;
532 iwl_mvm_reset_phy_ctxts(mvm
);
534 hw
->wiphy
->max_scan_ie_len
= iwl_mvm_max_scan_ie_len(mvm
);
536 hw
->wiphy
->max_scan_ssids
= PROBE_OPTION_MAX
;
538 BUILD_BUG_ON(IWL_MVM_SCAN_STOPPING_MASK
& IWL_MVM_SCAN_MASK
);
539 BUILD_BUG_ON(IWL_MVM_MAX_UMAC_SCANS
> HWEIGHT32(IWL_MVM_SCAN_MASK
) ||
540 IWL_MVM_MAX_LMAC_SCANS
> HWEIGHT32(IWL_MVM_SCAN_MASK
));
542 if (fw_has_capa(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_CAPA_UMAC_SCAN
))
543 mvm
->max_scans
= IWL_MVM_MAX_UMAC_SCANS
;
545 mvm
->max_scans
= IWL_MVM_MAX_LMAC_SCANS
;
547 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
].n_channels
)
548 hw
->wiphy
->bands
[IEEE80211_BAND_2GHZ
] =
549 &mvm
->nvm_data
->bands
[IEEE80211_BAND_2GHZ
];
550 if (mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
].n_channels
) {
551 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
] =
552 &mvm
->nvm_data
->bands
[IEEE80211_BAND_5GHZ
];
554 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
555 IWL_UCODE_TLV_CAPA_BEAMFORMER
) &&
556 fw_has_api(&mvm
->fw
->ucode_capa
,
557 IWL_UCODE_TLV_API_LQ_SS_PARAMS
))
558 hw
->wiphy
->bands
[IEEE80211_BAND_5GHZ
]->vht_cap
.cap
|=
559 IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE
;
562 hw
->wiphy
->hw_version
= mvm
->trans
->hw_id
;
564 if (iwlmvm_mod_params
.power_scheme
!= IWL_POWER_SCHEME_CAM
)
565 hw
->wiphy
->flags
|= WIPHY_FLAG_PS_ON_BY_DEFAULT
;
567 hw
->wiphy
->flags
&= ~WIPHY_FLAG_PS_ON_BY_DEFAULT
;
569 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_SCHED_SCAN
;
570 hw
->wiphy
->max_sched_scan_ssids
= PROBE_OPTION_MAX
;
571 hw
->wiphy
->max_match_sets
= IWL_SCAN_MAX_PROFILES
;
572 /* we create the 802.11 header and zero length SSID IE. */
573 hw
->wiphy
->max_sched_scan_ie_len
=
574 SCAN_OFFLOAD_PROBE_REQ_SIZE
- 24 - 2;
576 hw
->wiphy
->features
|= NL80211_FEATURE_P2P_GO_CTWIN
|
577 NL80211_FEATURE_LOW_PRIORITY_SCAN
|
578 NL80211_FEATURE_P2P_GO_OPPPS
|
579 NL80211_FEATURE_DYNAMIC_SMPS
|
580 NL80211_FEATURE_STATIC_SMPS
|
581 NL80211_FEATURE_SUPPORTS_WMM_ADMISSION
;
583 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
584 IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT
))
585 hw
->wiphy
->features
|= NL80211_FEATURE_TX_POWER_INSERTION
;
586 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
587 IWL_UCODE_TLV_CAPA_QUIET_PERIOD_SUPPORT
))
588 hw
->wiphy
->features
|= NL80211_FEATURE_QUIET
;
590 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
591 IWL_UCODE_TLV_CAPA_DS_PARAM_SET_IE_SUPPORT
))
592 hw
->wiphy
->features
|=
593 NL80211_FEATURE_DS_PARAM_SET_IE_IN_PROBES
;
595 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
596 IWL_UCODE_TLV_CAPA_WFA_TPC_REP_IE_SUPPORT
))
597 hw
->wiphy
->features
|= NL80211_FEATURE_WFA_TPC_IE_IN_PROBES
;
599 mvm
->rts_threshold
= IEEE80211_MAX_RTS_THRESHOLD
;
601 #ifdef CONFIG_PM_SLEEP
602 if (iwl_mvm_is_d0i3_supported(mvm
) &&
603 device_can_wakeup(mvm
->trans
->dev
)) {
604 mvm
->wowlan
.flags
= WIPHY_WOWLAN_ANY
;
605 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
608 if (mvm
->fw
->img
[IWL_UCODE_WOWLAN
].sec
[0].len
&&
609 mvm
->trans
->ops
->d3_suspend
&&
610 mvm
->trans
->ops
->d3_resume
&&
611 device_can_wakeup(mvm
->trans
->dev
)) {
612 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_MAGIC_PKT
|
613 WIPHY_WOWLAN_DISCONNECT
|
614 WIPHY_WOWLAN_EAP_IDENTITY_REQ
|
615 WIPHY_WOWLAN_RFKILL_RELEASE
|
616 WIPHY_WOWLAN_NET_DETECT
;
617 if (!iwlwifi_mod_params
.sw_crypto
)
618 mvm
->wowlan
.flags
|= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY
|
619 WIPHY_WOWLAN_GTK_REKEY_FAILURE
|
620 WIPHY_WOWLAN_4WAY_HANDSHAKE
;
622 mvm
->wowlan
.n_patterns
= IWL_WOWLAN_MAX_PATTERNS
;
623 mvm
->wowlan
.pattern_min_len
= IWL_WOWLAN_MIN_PATTERN_LEN
;
624 mvm
->wowlan
.pattern_max_len
= IWL_WOWLAN_MAX_PATTERN_LEN
;
625 mvm
->wowlan
.max_nd_match_sets
= IWL_SCAN_MAX_PROFILES
;
626 mvm
->wowlan
.tcp
= &iwl_mvm_wowlan_tcp_support
;
627 hw
->wiphy
->wowlan
= &mvm
->wowlan
;
631 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
632 /* assign default bcast filtering configuration */
633 mvm
->bcast_filters
= iwl_mvm_default_bcast_filters
;
636 ret
= iwl_mvm_leds_init(mvm
);
640 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
641 IWL_UCODE_TLV_CAPA_TDLS_SUPPORT
)) {
642 IWL_DEBUG_TDLS(mvm
, "TDLS supported\n");
643 hw
->wiphy
->flags
|= WIPHY_FLAG_SUPPORTS_TDLS
;
646 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
647 IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH
)) {
648 IWL_DEBUG_TDLS(mvm
, "TDLS channel switch supported\n");
649 hw
->wiphy
->features
|= NL80211_FEATURE_TDLS_CHANNEL_SWITCH
;
652 ret
= ieee80211_register_hw(mvm
->hw
);
654 iwl_mvm_leds_exit(mvm
);
659 static bool iwl_mvm_defer_tx(struct iwl_mvm
*mvm
,
660 struct ieee80211_sta
*sta
,
663 struct iwl_mvm_sta
*mvmsta
;
667 * double check the IN_D0I3 flag both before and after
668 * taking the spinlock, in order to prevent taking
669 * the spinlock when not needed.
671 if (likely(!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
)))
674 spin_lock(&mvm
->d0i3_tx_lock
);
676 * testing the flag again ensures the skb dequeue
677 * loop (on d0i3 exit) hasn't run yet.
679 if (!test_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
))
682 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
683 if (mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
||
684 mvmsta
->sta_id
!= mvm
->d0i3_ap_sta_id
)
687 __skb_queue_tail(&mvm
->d0i3_tx
, skb
);
688 ieee80211_stop_queues(mvm
->hw
);
691 iwl_mvm_ref(mvm
, IWL_MVM_REF_TX
);
692 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX
);
696 spin_unlock(&mvm
->d0i3_tx_lock
);
700 static void iwl_mvm_mac_tx(struct ieee80211_hw
*hw
,
701 struct ieee80211_tx_control
*control
,
704 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
705 struct ieee80211_sta
*sta
= control
->sta
;
706 struct ieee80211_tx_info
*info
= IEEE80211_SKB_CB(skb
);
707 struct ieee80211_hdr
*hdr
= (void *)skb
->data
;
709 if (iwl_mvm_is_radio_killed(mvm
)) {
710 IWL_DEBUG_DROP(mvm
, "Dropping - RF/CT KILL\n");
714 if (IEEE80211_SKB_CB(skb
)->hw_queue
== IWL_MVM_OFFCHANNEL_QUEUE
&&
715 !test_bit(IWL_MVM_STATUS_ROC_RUNNING
, &mvm
->status
) &&
716 !test_bit(IWL_MVM_STATUS_ROC_AUX_RUNNING
, &mvm
->status
))
719 /* treat non-bufferable MMPDUs as broadcast if sta is sleeping */
720 if (unlikely(info
->flags
& IEEE80211_TX_CTL_NO_PS_BUFFER
&&
721 ieee80211_is_mgmt(hdr
->frame_control
) &&
722 !ieee80211_is_deauth(hdr
->frame_control
) &&
723 !ieee80211_is_disassoc(hdr
->frame_control
) &&
724 !ieee80211_is_action(hdr
->frame_control
)))
728 if (iwl_mvm_defer_tx(mvm
, sta
, skb
))
730 if (iwl_mvm_tx_skb(mvm
, skb
, sta
))
735 if (iwl_mvm_tx_skb_non_sta(mvm
, skb
))
739 ieee80211_free_txskb(hw
, skb
);
742 static inline bool iwl_enable_rx_ampdu(const struct iwl_cfg
*cfg
)
744 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_RXAGG
)
749 static inline bool iwl_enable_tx_ampdu(const struct iwl_cfg
*cfg
)
751 if (iwlwifi_mod_params
.disable_11n
& IWL_DISABLE_HT_TXAGG
)
753 if (iwlwifi_mod_params
.disable_11n
& IWL_ENABLE_HT_TXAGG
)
756 /* enabled by default */
760 #define CHECK_BA_TRIGGER(_mvm, _trig, _tid_bm, _tid, _fmt...) \
762 if (!(le16_to_cpu(_tid_bm) & BIT(_tid))) \
764 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt); \
768 iwl_mvm_ampdu_check_trigger(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
769 struct ieee80211_sta
*sta
, u16 tid
, u16 rx_ba_ssn
,
770 enum ieee80211_ampdu_mlme_action action
)
772 struct iwl_fw_dbg_trigger_tlv
*trig
;
773 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
775 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
778 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
779 ba_trig
= (void *)trig
->data
;
781 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
785 case IEEE80211_AMPDU_TX_OPERATIONAL
: {
786 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
787 struct iwl_mvm_tid_data
*tid_data
= &mvmsta
->tid_data
[tid
];
789 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->tx_ba_start
, tid
,
790 "TX AGG START: MAC %pM tid %d ssn %d\n",
791 sta
->addr
, tid
, tid_data
->ssn
);
794 case IEEE80211_AMPDU_TX_STOP_CONT
:
795 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->tx_ba_stop
, tid
,
796 "TX AGG STOP: MAC %pM tid %d\n",
799 case IEEE80211_AMPDU_RX_START
:
800 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->rx_ba_start
, tid
,
801 "RX AGG START: MAC %pM tid %d ssn %d\n",
802 sta
->addr
, tid
, rx_ba_ssn
);
804 case IEEE80211_AMPDU_RX_STOP
:
805 CHECK_BA_TRIGGER(mvm
, trig
, ba_trig
->rx_ba_stop
, tid
,
806 "RX AGG STOP: MAC %pM tid %d\n",
814 static int iwl_mvm_mac_ampdu_action(struct ieee80211_hw
*hw
,
815 struct ieee80211_vif
*vif
,
816 enum ieee80211_ampdu_mlme_action action
,
817 struct ieee80211_sta
*sta
, u16 tid
,
818 u16
*ssn
, u8 buf_size
)
820 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
822 bool tx_agg_ref
= false;
824 IWL_DEBUG_HT(mvm
, "A-MPDU action on addr %pM tid %d: action %d\n",
825 sta
->addr
, tid
, action
);
827 if (!(mvm
->nvm_data
->sku_cap_11n_enable
))
830 /* return from D0i3 before starting a new Tx aggregation */
832 case IEEE80211_AMPDU_TX_START
:
833 case IEEE80211_AMPDU_TX_STOP_CONT
:
834 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
835 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
836 case IEEE80211_AMPDU_TX_OPERATIONAL
:
838 * for tx start, wait synchronously until D0i3 exit to
839 * get the correct sequence number for the tid.
840 * additionally, some other ampdu actions use direct
841 * target access, which is not handled automatically
842 * by the trans layer (unlike commands), so wait for
843 * d0i3 exit in these cases as well.
845 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_TX_AGG
);
855 mutex_lock(&mvm
->mutex
);
858 case IEEE80211_AMPDU_RX_START
:
859 if (!iwl_enable_rx_ampdu(mvm
->cfg
)) {
863 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, *ssn
, true);
865 case IEEE80211_AMPDU_RX_STOP
:
866 ret
= iwl_mvm_sta_rx_agg(mvm
, sta
, tid
, 0, false);
868 case IEEE80211_AMPDU_TX_START
:
869 if (!iwl_enable_tx_ampdu(mvm
->cfg
)) {
873 ret
= iwl_mvm_sta_tx_agg_start(mvm
, vif
, sta
, tid
, ssn
);
875 case IEEE80211_AMPDU_TX_STOP_CONT
:
876 ret
= iwl_mvm_sta_tx_agg_stop(mvm
, vif
, sta
, tid
);
878 case IEEE80211_AMPDU_TX_STOP_FLUSH
:
879 case IEEE80211_AMPDU_TX_STOP_FLUSH_CONT
:
880 ret
= iwl_mvm_sta_tx_agg_flush(mvm
, vif
, sta
, tid
);
882 case IEEE80211_AMPDU_TX_OPERATIONAL
:
883 ret
= iwl_mvm_sta_tx_agg_oper(mvm
, vif
, sta
, tid
, buf_size
);
894 if (action
== IEEE80211_AMPDU_RX_START
)
897 iwl_mvm_ampdu_check_trigger(mvm
, vif
, sta
, tid
,
900 mutex_unlock(&mvm
->mutex
);
903 * If the tid is marked as started, we won't use it for offloaded
904 * traffic on the next D0i3 entry. It's safe to unref.
907 iwl_mvm_unref(mvm
, IWL_MVM_REF_TX_AGG
);
912 static void iwl_mvm_cleanup_iterator(void *data
, u8
*mac
,
913 struct ieee80211_vif
*vif
)
915 struct iwl_mvm
*mvm
= data
;
916 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
918 mvmvif
->uploaded
= false;
919 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
921 spin_lock_bh(&mvm
->time_event_lock
);
922 iwl_mvm_te_clear_data(mvm
, &mvmvif
->time_event_data
);
923 spin_unlock_bh(&mvm
->time_event_lock
);
925 mvmvif
->phy_ctxt
= NULL
;
926 memset(&mvmvif
->bf_data
, 0, sizeof(mvmvif
->bf_data
));
929 static ssize_t
iwl_mvm_read_coredump(char *buffer
, loff_t offset
, size_t count
,
930 const void *data
, size_t datalen
)
932 const struct iwl_mvm_dump_ptrs
*dump_ptrs
= data
;
934 ssize_t bytes_read_trans
;
936 if (offset
< dump_ptrs
->op_mode_len
) {
937 bytes_read
= min_t(ssize_t
, count
,
938 dump_ptrs
->op_mode_len
- offset
);
939 memcpy(buffer
, (u8
*)dump_ptrs
->op_mode_ptr
+ offset
,
941 offset
+= bytes_read
;
950 if (!dump_ptrs
->trans_ptr
)
953 offset
-= dump_ptrs
->op_mode_len
;
954 bytes_read_trans
= min_t(ssize_t
, count
,
955 dump_ptrs
->trans_ptr
->len
- offset
);
956 memcpy(buffer
+ bytes_read
,
957 (u8
*)dump_ptrs
->trans_ptr
->data
+ offset
,
960 return bytes_read
+ bytes_read_trans
;
963 static void iwl_mvm_free_coredump(const void *data
)
965 const struct iwl_mvm_dump_ptrs
*fw_error_dump
= data
;
967 vfree(fw_error_dump
->op_mode_ptr
);
968 vfree(fw_error_dump
->trans_ptr
);
969 kfree(fw_error_dump
);
972 static void iwl_mvm_dump_fifos(struct iwl_mvm
*mvm
,
973 struct iwl_fw_error_dump_data
**dump_data
)
975 struct iwl_fw_error_dump_fifo
*fifo_hdr
;
981 if (!iwl_trans_grab_nic_access(mvm
->trans
, false, &flags
))
984 /* Pull RXF data from all RXFs */
985 for (i
= 0; i
< ARRAY_SIZE(mvm
->shared_mem_cfg
.rxfifo_size
); i
++) {
987 * Keep aside the additional offset that might be needed for
990 u32 offset_diff
= RXF_DIFF_FROM_PREV
* i
;
992 fifo_hdr
= (void *)(*dump_data
)->data
;
993 fifo_data
= (void *)fifo_hdr
->data
;
994 fifo_len
= mvm
->shared_mem_cfg
.rxfifo_size
[i
];
996 /* No need to try to read the data if the length is 0 */
1000 /* Add a TLV for the RXF */
1001 (*dump_data
)->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_RXF
);
1002 (*dump_data
)->len
= cpu_to_le32(fifo_len
+ sizeof(*fifo_hdr
));
1004 fifo_hdr
->fifo_num
= cpu_to_le32(i
);
1005 fifo_hdr
->available_bytes
=
1006 cpu_to_le32(iwl_trans_read_prph(mvm
->trans
,
1010 cpu_to_le32(iwl_trans_read_prph(mvm
->trans
,
1014 cpu_to_le32(iwl_trans_read_prph(mvm
->trans
,
1017 fifo_hdr
->fence_ptr
=
1018 cpu_to_le32(iwl_trans_read_prph(mvm
->trans
,
1021 fifo_hdr
->fence_mode
=
1022 cpu_to_le32(iwl_trans_read_prph(mvm
->trans
,
1023 RXF_SET_FENCE_MODE
+
1027 iwl_trans_write_prph(mvm
->trans
,
1028 RXF_SET_FENCE_MODE
+ offset_diff
, 0x1);
1029 /* Set fence pointer to the same place like WR pointer */
1030 iwl_trans_write_prph(mvm
->trans
,
1031 RXF_LD_WR2FENCE
+ offset_diff
, 0x1);
1032 /* Set fence offset */
1033 iwl_trans_write_prph(mvm
->trans
,
1034 RXF_LD_FENCE_OFFSET_ADDR
+ offset_diff
,
1038 fifo_len
/= sizeof(u32
); /* Size in DWORDS */
1039 for (j
= 0; j
< fifo_len
; j
++)
1040 fifo_data
[j
] = iwl_trans_read_prph(mvm
->trans
,
1041 RXF_FIFO_RD_FENCE_INC
+
1043 *dump_data
= iwl_fw_error_next_data(*dump_data
);
1046 /* Pull TXF data from all TXFs */
1047 for (i
= 0; i
< ARRAY_SIZE(mvm
->shared_mem_cfg
.txfifo_size
); i
++) {
1048 /* Mark the number of TXF we're pulling now */
1049 iwl_trans_write_prph(mvm
->trans
, TXF_LARC_NUM
, i
);
1051 fifo_hdr
= (void *)(*dump_data
)->data
;
1052 fifo_data
= (void *)fifo_hdr
->data
;
1053 fifo_len
= mvm
->shared_mem_cfg
.txfifo_size
[i
];
1055 /* No need to try to read the data if the length is 0 */
1059 /* Add a TLV for the FIFO */
1060 (*dump_data
)->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_TXF
);
1061 (*dump_data
)->len
= cpu_to_le32(fifo_len
+ sizeof(*fifo_hdr
));
1063 fifo_hdr
->fifo_num
= cpu_to_le32(i
);
1064 fifo_hdr
->available_bytes
=
1065 cpu_to_le32(iwl_trans_read_prph(mvm
->trans
,
1066 TXF_FIFO_ITEM_CNT
));
1068 cpu_to_le32(iwl_trans_read_prph(mvm
->trans
,
1071 cpu_to_le32(iwl_trans_read_prph(mvm
->trans
,
1073 fifo_hdr
->fence_ptr
=
1074 cpu_to_le32(iwl_trans_read_prph(mvm
->trans
,
1076 fifo_hdr
->fence_mode
=
1077 cpu_to_le32(iwl_trans_read_prph(mvm
->trans
,
1080 /* Set the TXF_READ_MODIFY_ADDR to TXF_WR_PTR */
1081 iwl_trans_write_prph(mvm
->trans
, TXF_READ_MODIFY_ADDR
,
1084 /* Dummy-read to advance the read pointer to the head */
1085 iwl_trans_read_prph(mvm
->trans
, TXF_READ_MODIFY_DATA
);
1088 fifo_len
/= sizeof(u32
); /* Size in DWORDS */
1089 for (j
= 0; j
< fifo_len
; j
++)
1090 fifo_data
[j
] = iwl_trans_read_prph(mvm
->trans
,
1091 TXF_READ_MODIFY_DATA
);
1092 *dump_data
= iwl_fw_error_next_data(*dump_data
);
1095 iwl_trans_release_nic_access(mvm
->trans
, &flags
);
1098 void iwl_mvm_free_fw_dump_desc(struct iwl_mvm
*mvm
)
1100 if (mvm
->fw_dump_desc
== &iwl_mvm_dump_desc_assert
||
1104 kfree(mvm
->fw_dump_desc
);
1105 mvm
->fw_dump_desc
= NULL
;
1108 #define IWL8260_ICCM_OFFSET 0x44000 /* Only for B-step */
1109 #define IWL8260_ICCM_LEN 0xC000 /* Only for B-step */
1111 void iwl_mvm_fw_error_dump(struct iwl_mvm
*mvm
)
1113 struct iwl_fw_error_dump_file
*dump_file
;
1114 struct iwl_fw_error_dump_data
*dump_data
;
1115 struct iwl_fw_error_dump_info
*dump_info
;
1116 struct iwl_fw_error_dump_mem
*dump_mem
;
1117 struct iwl_fw_error_dump_trigger_desc
*dump_trig
;
1118 struct iwl_mvm_dump_ptrs
*fw_error_dump
;
1119 u32 sram_len
, sram_ofs
;
1120 u32 file_len
, fifo_data_len
= 0;
1121 u32 smem_len
= mvm
->cfg
->smem_len
;
1122 u32 sram2_len
= mvm
->cfg
->dccm2_len
;
1124 lockdep_assert_held(&mvm
->mutex
);
1126 fw_error_dump
= kzalloc(sizeof(*fw_error_dump
), GFP_KERNEL
);
1130 /* SRAM - include stack CCM if driver knows the values for it */
1131 if (!mvm
->cfg
->dccm_offset
|| !mvm
->cfg
->dccm_len
) {
1132 const struct fw_img
*img
;
1134 img
= &mvm
->fw
->img
[mvm
->cur_ucode
];
1135 sram_ofs
= img
->sec
[IWL_UCODE_SECTION_DATA
].offset
;
1136 sram_len
= img
->sec
[IWL_UCODE_SECTION_DATA
].len
;
1138 sram_ofs
= mvm
->cfg
->dccm_offset
;
1139 sram_len
= mvm
->cfg
->dccm_len
;
1142 /* reading RXF/TXF sizes */
1143 if (test_bit(STATUS_FW_ERROR
, &mvm
->trans
->status
)) {
1144 struct iwl_mvm_shared_mem_cfg
*mem_cfg
= &mvm
->shared_mem_cfg
;
1149 /* Count RXF size */
1150 for (i
= 0; i
< ARRAY_SIZE(mem_cfg
->rxfifo_size
); i
++) {
1151 if (!mem_cfg
->rxfifo_size
[i
])
1154 /* Add header info */
1155 fifo_data_len
+= mem_cfg
->rxfifo_size
[i
] +
1156 sizeof(*dump_data
) +
1157 sizeof(struct iwl_fw_error_dump_fifo
);
1160 for (i
= 0; i
< ARRAY_SIZE(mem_cfg
->txfifo_size
); i
++) {
1161 if (!mem_cfg
->txfifo_size
[i
])
1164 /* Add header info */
1165 fifo_data_len
+= mem_cfg
->txfifo_size
[i
] +
1166 sizeof(*dump_data
) +
1167 sizeof(struct iwl_fw_error_dump_fifo
);
1171 file_len
= sizeof(*dump_file
) +
1172 sizeof(*dump_data
) * 2 +
1173 sram_len
+ sizeof(*dump_mem
) +
1178 * In 8000 HW family B-step include the ICCM (which resides separately)
1180 if (mvm
->cfg
->device_family
== IWL_DEVICE_FAMILY_8000
&&
1181 CSR_HW_REV_STEP(mvm
->trans
->hw_rev
) == SILICON_B_STEP
)
1182 file_len
+= sizeof(*dump_data
) + sizeof(*dump_mem
) +
1185 if (mvm
->fw_dump_desc
)
1186 file_len
+= sizeof(*dump_data
) + sizeof(*dump_trig
) +
1187 mvm
->fw_dump_desc
->len
;
1189 /* Make room for the SMEM, if it exists */
1191 file_len
+= sizeof(*dump_data
) + sizeof(*dump_mem
) + smem_len
;
1193 /* Make room for the secondary SRAM, if it exists */
1195 file_len
+= sizeof(*dump_data
) + sizeof(*dump_mem
) + sram2_len
;
1197 dump_file
= vzalloc(file_len
);
1199 kfree(fw_error_dump
);
1200 iwl_mvm_free_fw_dump_desc(mvm
);
1204 fw_error_dump
->op_mode_ptr
= dump_file
;
1206 dump_file
->barker
= cpu_to_le32(IWL_FW_ERROR_DUMP_BARKER
);
1207 dump_data
= (void *)dump_file
->data
;
1209 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_DEV_FW_INFO
);
1210 dump_data
->len
= cpu_to_le32(sizeof(*dump_info
));
1211 dump_info
= (void *) dump_data
->data
;
1212 dump_info
->device_family
=
1213 mvm
->cfg
->device_family
== IWL_DEVICE_FAMILY_7000
?
1214 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7
) :
1215 cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8
);
1216 dump_info
->hw_step
= cpu_to_le32(CSR_HW_REV_STEP(mvm
->trans
->hw_rev
));
1217 memcpy(dump_info
->fw_human_readable
, mvm
->fw
->human_readable
,
1218 sizeof(dump_info
->fw_human_readable
));
1219 strncpy(dump_info
->dev_human_readable
, mvm
->cfg
->name
,
1220 sizeof(dump_info
->dev_human_readable
));
1221 strncpy(dump_info
->bus_human_readable
, mvm
->dev
->bus
->name
,
1222 sizeof(dump_info
->bus_human_readable
));
1224 dump_data
= iwl_fw_error_next_data(dump_data
);
1225 /* We only dump the FIFOs if the FW is in error state */
1226 if (test_bit(STATUS_FW_ERROR
, &mvm
->trans
->status
))
1227 iwl_mvm_dump_fifos(mvm
, &dump_data
);
1229 if (mvm
->fw_dump_desc
) {
1230 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_ERROR_INFO
);
1231 dump_data
->len
= cpu_to_le32(sizeof(*dump_trig
) +
1232 mvm
->fw_dump_desc
->len
);
1233 dump_trig
= (void *)dump_data
->data
;
1234 memcpy(dump_trig
, &mvm
->fw_dump_desc
->trig_desc
,
1235 sizeof(*dump_trig
) + mvm
->fw_dump_desc
->len
);
1237 /* now we can free this copy */
1238 iwl_mvm_free_fw_dump_desc(mvm
);
1239 dump_data
= iwl_fw_error_next_data(dump_data
);
1242 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_MEM
);
1243 dump_data
->len
= cpu_to_le32(sram_len
+ sizeof(*dump_mem
));
1244 dump_mem
= (void *)dump_data
->data
;
1245 dump_mem
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM
);
1246 dump_mem
->offset
= cpu_to_le32(sram_ofs
);
1247 iwl_trans_read_mem_bytes(mvm
->trans
, sram_ofs
, dump_mem
->data
,
1251 dump_data
= iwl_fw_error_next_data(dump_data
);
1252 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_MEM
);
1253 dump_data
->len
= cpu_to_le32(smem_len
+ sizeof(*dump_mem
));
1254 dump_mem
= (void *)dump_data
->data
;
1255 dump_mem
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM
);
1256 dump_mem
->offset
= cpu_to_le32(mvm
->cfg
->smem_offset
);
1257 iwl_trans_read_mem_bytes(mvm
->trans
, mvm
->cfg
->smem_offset
,
1258 dump_mem
->data
, smem_len
);
1262 dump_data
= iwl_fw_error_next_data(dump_data
);
1263 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_MEM
);
1264 dump_data
->len
= cpu_to_le32(sram2_len
+ sizeof(*dump_mem
));
1265 dump_mem
= (void *)dump_data
->data
;
1266 dump_mem
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM
);
1267 dump_mem
->offset
= cpu_to_le32(mvm
->cfg
->dccm2_offset
);
1268 iwl_trans_read_mem_bytes(mvm
->trans
, mvm
->cfg
->dccm2_offset
,
1269 dump_mem
->data
, sram2_len
);
1272 if (mvm
->cfg
->device_family
== IWL_DEVICE_FAMILY_8000
&&
1273 CSR_HW_REV_STEP(mvm
->trans
->hw_rev
) == SILICON_B_STEP
) {
1274 dump_data
= iwl_fw_error_next_data(dump_data
);
1275 dump_data
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_MEM
);
1276 dump_data
->len
= cpu_to_le32(IWL8260_ICCM_LEN
+
1278 dump_mem
= (void *)dump_data
->data
;
1279 dump_mem
->type
= cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM
);
1280 dump_mem
->offset
= cpu_to_le32(IWL8260_ICCM_OFFSET
);
1281 iwl_trans_read_mem_bytes(mvm
->trans
, IWL8260_ICCM_OFFSET
,
1282 dump_mem
->data
, IWL8260_ICCM_LEN
);
1285 fw_error_dump
->trans_ptr
= iwl_trans_dump_data(mvm
->trans
);
1286 fw_error_dump
->op_mode_len
= file_len
;
1287 if (fw_error_dump
->trans_ptr
)
1288 file_len
+= fw_error_dump
->trans_ptr
->len
;
1289 dump_file
->file_len
= cpu_to_le32(file_len
);
1291 dev_coredumpm(mvm
->trans
->dev
, THIS_MODULE
, fw_error_dump
, 0,
1292 GFP_KERNEL
, iwl_mvm_read_coredump
, iwl_mvm_free_coredump
);
1294 clear_bit(IWL_MVM_STATUS_DUMPING_FW_LOG
, &mvm
->status
);
1297 struct iwl_mvm_dump_desc iwl_mvm_dump_desc_assert
= {
1299 .type
= cpu_to_le32(FW_DBG_TRIGGER_FW_ASSERT
),
1303 static void iwl_mvm_restart_cleanup(struct iwl_mvm
*mvm
)
1305 /* clear the D3 reconfig, we only need it to avoid dumping a
1306 * firmware coredump on reconfiguration, we shouldn't do that
1307 * on D3->D0 transition
1309 if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG
, &mvm
->status
)) {
1310 mvm
->fw_dump_desc
= &iwl_mvm_dump_desc_assert
;
1311 iwl_mvm_fw_error_dump(mvm
);
1314 /* cleanup all stale references (scan, roc), but keep the
1315 * ucode_down ref until reconfig is complete
1317 iwl_mvm_unref_all_except(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1319 iwl_trans_stop_device(mvm
->trans
);
1321 mvm
->scan_status
= 0;
1322 mvm
->ps_disabled
= false;
1323 mvm
->calibrating
= false;
1325 /* just in case one was running */
1326 ieee80211_remain_on_channel_expired(mvm
->hw
);
1329 * cleanup all interfaces, even inactive ones, as some might have
1330 * gone down during the HW restart
1332 ieee80211_iterate_interfaces(mvm
->hw
, 0, iwl_mvm_cleanup_iterator
, mvm
);
1334 mvm
->p2p_device_vif
= NULL
;
1335 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
1337 iwl_mvm_reset_phy_ctxts(mvm
);
1338 memset(mvm
->sta_drained
, 0, sizeof(mvm
->sta_drained
));
1339 memset(mvm
->tfd_drained
, 0, sizeof(mvm
->tfd_drained
));
1340 memset(&mvm
->last_bt_notif
, 0, sizeof(mvm
->last_bt_notif
));
1341 memset(&mvm
->last_bt_notif_old
, 0, sizeof(mvm
->last_bt_notif_old
));
1342 memset(&mvm
->last_bt_ci_cmd
, 0, sizeof(mvm
->last_bt_ci_cmd
));
1343 memset(&mvm
->last_bt_ci_cmd_old
, 0, sizeof(mvm
->last_bt_ci_cmd_old
));
1344 memset(&mvm
->bt_ack_kill_msk
, 0, sizeof(mvm
->bt_ack_kill_msk
));
1345 memset(&mvm
->bt_cts_kill_msk
, 0, sizeof(mvm
->bt_cts_kill_msk
));
1347 ieee80211_wake_queues(mvm
->hw
);
1349 /* clear any stale d0i3 state */
1350 clear_bit(IWL_MVM_STATUS_IN_D0I3
, &mvm
->status
);
1353 mvm
->rx_ba_sessions
= 0;
1354 mvm
->fw_dbg_conf
= FW_DBG_INVALID
;
1356 /* keep statistics ticking */
1357 iwl_mvm_accu_radio_stats(mvm
);
1360 int __iwl_mvm_mac_start(struct iwl_mvm
*mvm
)
1364 lockdep_assert_held(&mvm
->mutex
);
1366 /* Clean up some internal and mac80211 state on restart */
1367 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
1368 iwl_mvm_restart_cleanup(mvm
);
1370 ret
= iwl_mvm_up(mvm
);
1372 if (ret
&& test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
1373 /* Something went wrong - we need to finish some cleanup
1374 * that normally iwl_mvm_mac_restart_complete() below
1377 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1378 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
1384 static int iwl_mvm_mac_start(struct ieee80211_hw
*hw
)
1386 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1389 /* Some hw restart cleanups must not hold the mutex */
1390 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
)) {
1392 * Make sure we are out of d0i3. This is needed
1393 * to make sure the reference accounting is correct
1394 * (and there is no stale d0i3_exit_work).
1396 wait_event_timeout(mvm
->d0i3_exit_waitq
,
1397 !test_bit(IWL_MVM_STATUS_IN_D0I3
,
1402 mutex_lock(&mvm
->mutex
);
1403 ret
= __iwl_mvm_mac_start(mvm
);
1404 mutex_unlock(&mvm
->mutex
);
1409 static void iwl_mvm_restart_complete(struct iwl_mvm
*mvm
)
1413 mutex_lock(&mvm
->mutex
);
1415 clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
);
1416 iwl_mvm_d0i3_enable_tx(mvm
, NULL
);
1417 ret
= iwl_mvm_update_quotas(mvm
, true, NULL
);
1419 IWL_ERR(mvm
, "Failed to update quotas after restart (%d)\n",
1422 /* allow transport/FW low power modes */
1423 iwl_mvm_unref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1426 * If we have TDLS peers, remove them. We don't know the last seqno/PN
1427 * of packets the FW sent out, so we must reconnect.
1429 iwl_mvm_teardown_tdls_peers(mvm
);
1431 mutex_unlock(&mvm
->mutex
);
1434 static void iwl_mvm_resume_complete(struct iwl_mvm
*mvm
)
1438 if (!iwl_mvm_is_d0i3_supported(mvm
))
1441 mutex_lock(&mvm
->d0i3_suspend_mutex
);
1442 __clear_bit(D0I3_DEFER_WAKEUP
, &mvm
->d0i3_suspend_flags
);
1443 exit_now
= __test_and_clear_bit(D0I3_PENDING_WAKEUP
,
1444 &mvm
->d0i3_suspend_flags
);
1445 mutex_unlock(&mvm
->d0i3_suspend_mutex
);
1448 IWL_DEBUG_RPM(mvm
, "Run deferred d0i3 exit\n");
1449 _iwl_mvm_exit_d0i3(mvm
);
1452 if (mvm
->trans
->d0i3_mode
== IWL_D0I3_MODE_ON_SUSPEND
)
1453 if (!wait_event_timeout(mvm
->d0i3_exit_waitq
,
1454 !test_bit(IWL_MVM_STATUS_IN_D0I3
,
1457 WARN_ONCE(1, "D0i3 exit on resume timed out\n");
1461 iwl_mvm_mac_reconfig_complete(struct ieee80211_hw
*hw
,
1462 enum ieee80211_reconfig_type reconfig_type
)
1464 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1466 switch (reconfig_type
) {
1467 case IEEE80211_RECONFIG_TYPE_RESTART
:
1468 iwl_mvm_restart_complete(mvm
);
1470 case IEEE80211_RECONFIG_TYPE_SUSPEND
:
1471 iwl_mvm_resume_complete(mvm
);
1476 void __iwl_mvm_mac_stop(struct iwl_mvm
*mvm
)
1478 lockdep_assert_held(&mvm
->mutex
);
1480 /* firmware counters are obviously reset now, but we shouldn't
1481 * partially track so also clear the fw_reset_accu counters.
1483 memset(&mvm
->accu_radio_stats
, 0, sizeof(mvm
->accu_radio_stats
));
1486 * Disallow low power states when the FW is down by taking
1487 * the UCODE_DOWN ref. in case of ongoing hw restart the
1488 * ref is already taken, so don't take it again.
1490 if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
1491 iwl_mvm_ref(mvm
, IWL_MVM_REF_UCODE_DOWN
);
1493 /* async_handlers_wk is now blocked */
1496 * The work item could be running or queued if the
1497 * ROC time event stops just as we get here.
1499 flush_work(&mvm
->roc_done_wk
);
1501 iwl_trans_stop_device(mvm
->trans
);
1503 iwl_mvm_async_handlers_purge(mvm
);
1504 /* async_handlers_list is empty and will stay empty: HW is stopped */
1506 /* the fw is stopped, the aux sta is dead: clean up driver state */
1507 iwl_mvm_del_aux_sta(mvm
);
1510 * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
1511 * won't be called in this case).
1512 * But make sure to cleanup interfaces that have gone down before/during
1513 * HW restart was requested.
1515 if (test_and_clear_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
1516 ieee80211_iterate_interfaces(mvm
->hw
, 0,
1517 iwl_mvm_cleanup_iterator
, mvm
);
1519 /* We shouldn't have any UIDs still set. Loop over all the UIDs to
1520 * make sure there's nothing left there and warn if any is found.
1522 if (fw_has_capa(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_CAPA_UMAC_SCAN
)) {
1525 for (i
= 0; i
< mvm
->max_scans
; i
++) {
1526 if (WARN_ONCE(mvm
->scan_uid_status
[i
],
1527 "UMAC scan UID %d status was not cleaned\n",
1529 mvm
->scan_uid_status
[i
] = 0;
1533 mvm
->ucode_loaded
= false;
1536 static void iwl_mvm_mac_stop(struct ieee80211_hw
*hw
)
1538 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1540 flush_work(&mvm
->d0i3_exit_work
);
1541 flush_work(&mvm
->async_handlers_wk
);
1542 cancel_delayed_work_sync(&mvm
->fw_dump_wk
);
1543 iwl_mvm_free_fw_dump_desc(mvm
);
1545 mutex_lock(&mvm
->mutex
);
1546 __iwl_mvm_mac_stop(mvm
);
1547 mutex_unlock(&mvm
->mutex
);
1550 * The worker might have been waiting for the mutex, let it run and
1551 * discover that its list is now empty.
1553 cancel_work_sync(&mvm
->async_handlers_wk
);
1556 static struct iwl_mvm_phy_ctxt
*iwl_mvm_get_free_phy_ctxt(struct iwl_mvm
*mvm
)
1560 lockdep_assert_held(&mvm
->mutex
);
1562 for (i
= 0; i
< NUM_PHY_CTX
; i
++)
1563 if (!mvm
->phy_ctxts
[i
].ref
)
1564 return &mvm
->phy_ctxts
[i
];
1566 IWL_ERR(mvm
, "No available PHY context\n");
1570 static int iwl_mvm_set_tx_power_old(struct iwl_mvm
*mvm
,
1571 struct ieee80211_vif
*vif
, s8 tx_power
)
1573 /* FW is in charge of regulatory enforcement */
1574 struct iwl_reduce_tx_power_cmd reduce_txpwr_cmd
= {
1575 .mac_context_id
= iwl_mvm_vif_from_mac80211(vif
)->id
,
1576 .pwr_restriction
= cpu_to_le16(tx_power
),
1579 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, 0,
1580 sizeof(reduce_txpwr_cmd
),
1584 static int iwl_mvm_set_tx_power(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
1587 struct iwl_dev_tx_power_cmd cmd
= {
1590 cpu_to_le32(iwl_mvm_vif_from_mac80211(vif
)->id
),
1591 .pwr_restriction
= cpu_to_le16(8 * tx_power
),
1594 if (!fw_has_api(&mvm
->fw
->ucode_capa
, IWL_UCODE_TLV_API_TX_POWER_DEV
))
1595 return iwl_mvm_set_tx_power_old(mvm
, vif
, tx_power
);
1597 if (tx_power
== IWL_DEFAULT_MAX_TX_POWER
)
1598 cmd
.pwr_restriction
= cpu_to_le16(IWL_DEV_MAX_TX_POWER
);
1600 return iwl_mvm_send_cmd_pdu(mvm
, REDUCE_TX_POWER_CMD
, 0,
1604 static int iwl_mvm_mac_add_interface(struct ieee80211_hw
*hw
,
1605 struct ieee80211_vif
*vif
)
1607 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1608 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1614 * make sure D0i3 exit is completed, otherwise a target access
1615 * during tx queue configuration could be done when still in
1618 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_ADD_IF
);
1623 * Not much to do here. The stack will not allow interface
1624 * types or combinations that we didn't advertise, so we
1625 * don't really have to check the types.
1628 mutex_lock(&mvm
->mutex
);
1630 /* make sure that beacon statistics don't go backwards with FW reset */
1631 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
))
1632 mvmvif
->beacon_stats
.accu_num_beacons
+=
1633 mvmvif
->beacon_stats
.num_beacons
;
1635 /* Allocate resources for the MAC context, and add it to the fw */
1636 ret
= iwl_mvm_mac_ctxt_init(mvm
, vif
);
1640 /* Counting number of interfaces is needed for legacy PM */
1641 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1645 * The AP binding flow can be done only after the beacon
1646 * template is configured (which happens only in the mac80211
1647 * start_ap() flow), and adding the broadcast station can happen
1648 * only after the binding.
1649 * In addition, since modifying the MAC before adding a bcast
1650 * station is not allowed by the FW, delay the adding of MAC context to
1651 * the point where we can also add the bcast station.
1652 * In short: there's not much we can do at this point, other than
1653 * allocating resources :)
1655 if (vif
->type
== NL80211_IFTYPE_AP
||
1656 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1657 ret
= iwl_mvm_alloc_bcast_sta(mvm
, vif
);
1659 IWL_ERR(mvm
, "Failed to allocate bcast sta\n");
1663 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1667 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
1671 ret
= iwl_mvm_power_update_mac(mvm
);
1673 goto out_remove_mac
;
1675 /* beacon filtering */
1676 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
1678 goto out_remove_mac
;
1680 if (!mvm
->bf_allowed_vif
&&
1681 vif
->type
== NL80211_IFTYPE_STATION
&& !vif
->p2p
) {
1682 mvm
->bf_allowed_vif
= mvmvif
;
1683 vif
->driver_flags
|= IEEE80211_VIF_BEACON_FILTER
|
1684 IEEE80211_VIF_SUPPORTS_CQM_RSSI
;
1688 * P2P_DEVICE interface does not have a channel context assigned to it,
1689 * so a dedicated PHY context is allocated to it and the corresponding
1690 * MAC context is bound to it at this stage.
1692 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1694 mvmvif
->phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
1695 if (!mvmvif
->phy_ctxt
) {
1700 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
1701 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
1705 ret
= iwl_mvm_add_bcast_sta(mvm
, vif
);
1709 /* Save a pointer to p2p device vif, so it can later be used to
1710 * update the p2p device MAC when a GO is started/stopped */
1711 mvm
->p2p_device_vif
= vif
;
1714 iwl_mvm_vif_dbgfs_register(mvm
, vif
);
1718 iwl_mvm_binding_remove_vif(mvm
, vif
);
1720 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1722 if (mvm
->bf_allowed_vif
== mvmvif
) {
1723 mvm
->bf_allowed_vif
= NULL
;
1724 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1725 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1728 mvmvif
->phy_ctxt
= NULL
;
1729 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1731 if (vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1734 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1736 mutex_unlock(&mvm
->mutex
);
1738 iwl_mvm_unref(mvm
, IWL_MVM_REF_ADD_IF
);
1743 static void iwl_mvm_prepare_mac_removal(struct iwl_mvm
*mvm
,
1744 struct ieee80211_vif
*vif
)
1746 u32 tfd_msk
= iwl_mvm_mac_get_queues_mask(vif
);
1750 * mac80211 first removes all the stations of the vif and
1751 * then removes the vif. When it removes a station it also
1752 * flushes the AMPDU session. So by now, all the AMPDU sessions
1753 * of all the stations of this vif are closed, and the queues
1754 * of these AMPDU sessions are properly closed.
1755 * We still need to take care of the shared queues of the vif.
1758 mutex_lock(&mvm
->mutex
);
1759 iwl_mvm_flush_tx_path(mvm
, tfd_msk
, true);
1760 mutex_unlock(&mvm
->mutex
);
1763 * There are transports that buffer a few frames in the host.
1764 * For these, the flush above isn't enough since while we were
1765 * flushing, the transport might have sent more frames to the
1766 * device. To solve this, wait here until the transport is
1767 * empty. Technically, this could have replaced the flush
1768 * above, but flush is much faster than draining. So flush
1769 * first, and drain to make sure we have no frames in the
1770 * transport anymore.
1771 * If a station still had frames on the shared queues, it is
1772 * already marked as draining, so to complete the draining, we
1773 * just need to wait until the transport is empty.
1775 iwl_trans_wait_tx_queue_empty(mvm
->trans
, tfd_msk
);
1778 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1780 * Flush the ROC worker which will flush the OFFCHANNEL queue.
1781 * We assume here that all the packets sent to the OFFCHANNEL
1782 * queue are sent in ROC session.
1784 flush_work(&mvm
->roc_done_wk
);
1787 * By now, all the AC queues are empty. The AGG queues are
1788 * empty too. We already got all the Tx responses for all the
1789 * packets in the queues. The drain work can have been
1790 * triggered. Flush it.
1792 flush_work(&mvm
->sta_drained_wk
);
1796 static void iwl_mvm_mac_remove_interface(struct ieee80211_hw
*hw
,
1797 struct ieee80211_vif
*vif
)
1799 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1800 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
1802 iwl_mvm_prepare_mac_removal(mvm
, vif
);
1804 mutex_lock(&mvm
->mutex
);
1806 if (mvm
->bf_allowed_vif
== mvmvif
) {
1807 mvm
->bf_allowed_vif
= NULL
;
1808 vif
->driver_flags
&= ~(IEEE80211_VIF_BEACON_FILTER
|
1809 IEEE80211_VIF_SUPPORTS_CQM_RSSI
);
1812 iwl_mvm_vif_dbgfs_clean(mvm
, vif
);
1815 * For AP/GO interface, the tear down of the resources allocated to the
1816 * interface is be handled as part of the stop_ap flow.
1818 if (vif
->type
== NL80211_IFTYPE_AP
||
1819 vif
->type
== NL80211_IFTYPE_ADHOC
) {
1820 #ifdef CONFIG_NL80211_TESTMODE
1821 if (vif
== mvm
->noa_vif
) {
1822 mvm
->noa_vif
= NULL
;
1823 mvm
->noa_duration
= 0;
1826 iwl_mvm_dealloc_bcast_sta(mvm
, vif
);
1830 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
1831 mvm
->p2p_device_vif
= NULL
;
1832 iwl_mvm_rm_bcast_sta(mvm
, vif
);
1833 iwl_mvm_binding_remove_vif(mvm
, vif
);
1834 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
1835 mvmvif
->phy_ctxt
= NULL
;
1838 if (mvm
->vif_count
&& vif
->type
!= NL80211_IFTYPE_P2P_DEVICE
)
1841 iwl_mvm_power_update_mac(mvm
);
1842 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
1845 iwl_mvm_mac_ctxt_release(mvm
, vif
);
1846 mutex_unlock(&mvm
->mutex
);
1849 static int iwl_mvm_mac_config(struct ieee80211_hw
*hw
, u32 changed
)
1854 struct iwl_mvm_mc_iter_data
{
1855 struct iwl_mvm
*mvm
;
1859 static void iwl_mvm_mc_iface_iterator(void *_data
, u8
*mac
,
1860 struct ieee80211_vif
*vif
)
1862 struct iwl_mvm_mc_iter_data
*data
= _data
;
1863 struct iwl_mvm
*mvm
= data
->mvm
;
1864 struct iwl_mcast_filter_cmd
*cmd
= mvm
->mcast_filter_cmd
;
1867 /* if we don't have free ports, mcast frames will be dropped */
1868 if (WARN_ON_ONCE(data
->port_id
>= MAX_PORT_ID_NUM
))
1871 if (vif
->type
!= NL80211_IFTYPE_STATION
||
1872 !vif
->bss_conf
.assoc
)
1875 cmd
->port_id
= data
->port_id
++;
1876 memcpy(cmd
->bssid
, vif
->bss_conf
.bssid
, ETH_ALEN
);
1877 len
= roundup(sizeof(*cmd
) + cmd
->count
* ETH_ALEN
, 4);
1879 ret
= iwl_mvm_send_cmd_pdu(mvm
, MCAST_FILTER_CMD
, CMD_ASYNC
, len
, cmd
);
1881 IWL_ERR(mvm
, "mcast filter cmd error. ret=%d\n", ret
);
1884 static void iwl_mvm_recalc_multicast(struct iwl_mvm
*mvm
)
1886 struct iwl_mvm_mc_iter_data iter_data
= {
1890 lockdep_assert_held(&mvm
->mutex
);
1892 if (WARN_ON_ONCE(!mvm
->mcast_filter_cmd
))
1895 ieee80211_iterate_active_interfaces_atomic(
1896 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
1897 iwl_mvm_mc_iface_iterator
, &iter_data
);
1900 static u64
iwl_mvm_prepare_multicast(struct ieee80211_hw
*hw
,
1901 struct netdev_hw_addr_list
*mc_list
)
1903 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1904 struct iwl_mcast_filter_cmd
*cmd
;
1905 struct netdev_hw_addr
*addr
;
1910 addr_count
= netdev_hw_addr_list_count(mc_list
);
1911 pass_all
= addr_count
> MAX_MCAST_FILTERING_ADDRESSES
||
1912 IWL_MVM_FW_MCAST_FILTER_PASS_ALL
;
1916 len
= roundup(sizeof(*cmd
) + addr_count
* ETH_ALEN
, 4);
1917 cmd
= kzalloc(len
, GFP_ATOMIC
);
1923 return (u64
)(unsigned long)cmd
;
1926 netdev_hw_addr_list_for_each(addr
, mc_list
) {
1927 IWL_DEBUG_MAC80211(mvm
, "mcast addr (%d): %pM\n",
1928 cmd
->count
, addr
->addr
);
1929 memcpy(&cmd
->addr_list
[cmd
->count
* ETH_ALEN
],
1930 addr
->addr
, ETH_ALEN
);
1934 return (u64
)(unsigned long)cmd
;
1937 static void iwl_mvm_configure_filter(struct ieee80211_hw
*hw
,
1938 unsigned int changed_flags
,
1939 unsigned int *total_flags
,
1942 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
1943 struct iwl_mcast_filter_cmd
*cmd
= (void *)(unsigned long)multicast
;
1945 mutex_lock(&mvm
->mutex
);
1947 /* replace previous configuration */
1948 kfree(mvm
->mcast_filter_cmd
);
1949 mvm
->mcast_filter_cmd
= cmd
;
1954 iwl_mvm_recalc_multicast(mvm
);
1956 mutex_unlock(&mvm
->mutex
);
1960 #ifdef CONFIG_IWLWIFI_BCAST_FILTERING
1961 struct iwl_bcast_iter_data
{
1962 struct iwl_mvm
*mvm
;
1963 struct iwl_bcast_filter_cmd
*cmd
;
1968 iwl_mvm_set_bcast_filter(struct ieee80211_vif
*vif
,
1969 const struct iwl_fw_bcast_filter
*in_filter
,
1970 struct iwl_fw_bcast_filter
*out_filter
)
1972 struct iwl_fw_bcast_filter_attr
*attr
;
1975 memcpy(out_filter
, in_filter
, sizeof(*out_filter
));
1977 for (i
= 0; i
< ARRAY_SIZE(out_filter
->attrs
); i
++) {
1978 attr
= &out_filter
->attrs
[i
];
1983 switch (attr
->reserved1
) {
1984 case cpu_to_le16(BC_FILTER_MAGIC_IP
):
1985 if (vif
->bss_conf
.arp_addr_cnt
!= 1) {
1990 attr
->val
= vif
->bss_conf
.arp_addr_list
[0];
1992 case cpu_to_le16(BC_FILTER_MAGIC_MAC
):
1993 attr
->val
= *(__be32
*)&vif
->addr
[2];
1998 attr
->reserved1
= 0;
1999 out_filter
->num_attrs
++;
2003 static void iwl_mvm_bcast_filter_iterator(void *_data
, u8
*mac
,
2004 struct ieee80211_vif
*vif
)
2006 struct iwl_bcast_iter_data
*data
= _data
;
2007 struct iwl_mvm
*mvm
= data
->mvm
;
2008 struct iwl_bcast_filter_cmd
*cmd
= data
->cmd
;
2009 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2010 struct iwl_fw_bcast_mac
*bcast_mac
;
2013 if (WARN_ON(mvmvif
->id
>= ARRAY_SIZE(cmd
->macs
)))
2016 bcast_mac
= &cmd
->macs
[mvmvif
->id
];
2019 * enable filtering only for associated stations, but not for P2P
2022 if (vif
->type
!= NL80211_IFTYPE_STATION
|| vif
->p2p
||
2023 !vif
->bss_conf
.assoc
)
2026 bcast_mac
->default_discard
= 1;
2028 /* copy all configured filters */
2029 for (i
= 0; mvm
->bcast_filters
[i
].attrs
[0].mask
; i
++) {
2031 * Make sure we don't exceed our filters limit.
2032 * if there is still a valid filter to be configured,
2033 * be on the safe side and just allow bcast for this mac.
2035 if (WARN_ON_ONCE(data
->current_filter
>=
2036 ARRAY_SIZE(cmd
->filters
))) {
2037 bcast_mac
->default_discard
= 0;
2038 bcast_mac
->attached_filters
= 0;
2042 iwl_mvm_set_bcast_filter(vif
,
2043 &mvm
->bcast_filters
[i
],
2044 &cmd
->filters
[data
->current_filter
]);
2046 /* skip current filter if it contains no attributes */
2047 if (!cmd
->filters
[data
->current_filter
].num_attrs
)
2050 /* attach the filter to current mac */
2051 bcast_mac
->attached_filters
|=
2052 cpu_to_le16(BIT(data
->current_filter
));
2054 data
->current_filter
++;
2058 bool iwl_mvm_bcast_filter_build_cmd(struct iwl_mvm
*mvm
,
2059 struct iwl_bcast_filter_cmd
*cmd
)
2061 struct iwl_bcast_iter_data iter_data
= {
2066 if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL
)
2069 memset(cmd
, 0, sizeof(*cmd
));
2070 cmd
->max_bcast_filters
= ARRAY_SIZE(cmd
->filters
);
2071 cmd
->max_macs
= ARRAY_SIZE(cmd
->macs
);
2073 #ifdef CONFIG_IWLWIFI_DEBUGFS
2074 /* use debugfs filters/macs if override is configured */
2075 if (mvm
->dbgfs_bcast_filtering
.override
) {
2076 memcpy(cmd
->filters
, &mvm
->dbgfs_bcast_filtering
.cmd
.filters
,
2077 sizeof(cmd
->filters
));
2078 memcpy(cmd
->macs
, &mvm
->dbgfs_bcast_filtering
.cmd
.macs
,
2084 /* if no filters are configured, do nothing */
2085 if (!mvm
->bcast_filters
)
2088 /* configure and attach these filters for each associated sta vif */
2089 ieee80211_iterate_active_interfaces(
2090 mvm
->hw
, IEEE80211_IFACE_ITER_NORMAL
,
2091 iwl_mvm_bcast_filter_iterator
, &iter_data
);
2095 static int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
2096 struct ieee80211_vif
*vif
)
2098 struct iwl_bcast_filter_cmd cmd
;
2100 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_BCAST_FILTERING
))
2103 if (!iwl_mvm_bcast_filter_build_cmd(mvm
, &cmd
))
2106 return iwl_mvm_send_cmd_pdu(mvm
, BCAST_FILTER_CMD
, 0,
2110 static inline int iwl_mvm_configure_bcast_filter(struct iwl_mvm
*mvm
,
2111 struct ieee80211_vif
*vif
)
2117 static void iwl_mvm_bss_info_changed_station(struct iwl_mvm
*mvm
,
2118 struct ieee80211_vif
*vif
,
2119 struct ieee80211_bss_conf
*bss_conf
,
2122 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2126 * Re-calculate the tsf id, as the master-slave relations depend on the
2127 * beacon interval, which was not known when the station interface was
2130 if (changes
& BSS_CHANGED_ASSOC
&& bss_conf
->assoc
)
2131 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
2134 * If we're not associated yet, take the (new) BSSID before associating
2135 * so the firmware knows. If we're already associated, then use the old
2136 * BSSID here, and we'll send a cleared one later in the CHANGED_ASSOC
2137 * branch for disassociation below.
2139 if (changes
& BSS_CHANGED_BSSID
&& !mvmvif
->associated
)
2140 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
2142 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, mvmvif
->bssid
);
2144 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
2146 /* after sending it once, adopt mac80211 data */
2147 memcpy(mvmvif
->bssid
, bss_conf
->bssid
, ETH_ALEN
);
2148 mvmvif
->associated
= bss_conf
->assoc
;
2150 if (changes
& BSS_CHANGED_ASSOC
) {
2151 if (bss_conf
->assoc
) {
2152 /* clear statistics to get clean beacon counter */
2153 iwl_mvm_request_statistics(mvm
, true);
2154 memset(&mvmvif
->beacon_stats
, 0,
2155 sizeof(mvmvif
->beacon_stats
));
2157 /* add quota for this interface */
2158 ret
= iwl_mvm_update_quotas(mvm
, true, NULL
);
2160 IWL_ERR(mvm
, "failed to update quotas\n");
2164 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
2167 * If we're restarting then the firmware will
2168 * obviously have lost synchronisation with
2169 * the AP. It will attempt to synchronise by
2170 * itself, but we can make it more reliable by
2171 * scheduling a session protection time event.
2173 * The firmware needs to receive a beacon to
2174 * catch up with synchronisation, use 110% of
2175 * the beacon interval.
2177 * Set a large maximum delay to allow for more
2178 * than a single interface.
2180 u32 dur
= (11 * vif
->bss_conf
.beacon_int
) / 10;
2181 iwl_mvm_protect_session(mvm
, vif
, dur
, dur
,
2185 iwl_mvm_sf_update(mvm
, vif
, false);
2186 iwl_mvm_power_vif_assoc(mvm
, vif
);
2188 iwl_mvm_ref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
2189 iwl_mvm_update_smps(mvm
, vif
,
2190 IWL_MVM_SMPS_REQ_PROT
,
2191 IEEE80211_SMPS_DYNAMIC
);
2193 } else if (mvmvif
->ap_sta_id
!= IWL_MVM_STATION_COUNT
) {
2195 * If update fails - SF might be running in associated
2196 * mode while disassociated - which is forbidden.
2198 WARN_ONCE(iwl_mvm_sf_update(mvm
, vif
, false),
2199 "Failed to update SF upon disassociation\n");
2201 /* remove AP station now that the MAC is unassoc */
2202 ret
= iwl_mvm_rm_sta_id(mvm
, vif
, mvmvif
->ap_sta_id
);
2204 IWL_ERR(mvm
, "failed to remove AP station\n");
2206 if (mvm
->d0i3_ap_sta_id
== mvmvif
->ap_sta_id
)
2207 mvm
->d0i3_ap_sta_id
= IWL_MVM_STATION_COUNT
;
2208 mvmvif
->ap_sta_id
= IWL_MVM_STATION_COUNT
;
2209 /* remove quota for this interface */
2210 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
2212 IWL_ERR(mvm
, "failed to update quotas\n");
2215 iwl_mvm_unref(mvm
, IWL_MVM_REF_P2P_CLIENT
);
2217 /* this will take the cleared BSSID from bss_conf */
2218 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2221 "failed to update MAC %pM (clear after unassoc)\n",
2225 iwl_mvm_recalc_multicast(mvm
);
2226 iwl_mvm_configure_bcast_filter(mvm
, vif
);
2228 /* reset rssi values */
2229 mvmvif
->bf_data
.ave_beacon_signal
= 0;
2231 iwl_mvm_bt_coex_vif_change(mvm
);
2232 iwl_mvm_update_smps(mvm
, vif
, IWL_MVM_SMPS_REQ_TT
,
2233 IEEE80211_SMPS_AUTOMATIC
);
2234 } else if (changes
& BSS_CHANGED_BEACON_INFO
) {
2236 * We received a beacon _after_ association so
2237 * remove the session protection.
2239 iwl_mvm_remove_time_event(mvm
, mvmvif
,
2240 &mvmvif
->time_event_data
);
2243 if (changes
& BSS_CHANGED_BEACON_INFO
) {
2244 iwl_mvm_sf_update(mvm
, vif
, false);
2245 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
2248 if (changes
& (BSS_CHANGED_PS
| BSS_CHANGED_P2P_PS
| BSS_CHANGED_QOS
)) {
2249 ret
= iwl_mvm_power_update_mac(mvm
);
2251 IWL_ERR(mvm
, "failed to update power mode\n");
2254 if (changes
& BSS_CHANGED_TXPOWER
) {
2255 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
2257 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
2260 if (changes
& BSS_CHANGED_CQM
) {
2261 IWL_DEBUG_MAC80211(mvm
, "cqm info_changed\n");
2262 /* reset cqm events tracking */
2263 mvmvif
->bf_data
.last_cqm_event
= 0;
2264 if (mvmvif
->bf_data
.bf_enabled
) {
2265 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
2268 "failed to update CQM thresholds\n");
2272 if (changes
& BSS_CHANGED_ARP_FILTER
) {
2273 IWL_DEBUG_MAC80211(mvm
, "arp filter changed\n");
2274 iwl_mvm_configure_bcast_filter(mvm
, vif
);
2278 static int iwl_mvm_start_ap_ibss(struct ieee80211_hw
*hw
,
2279 struct ieee80211_vif
*vif
)
2281 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2282 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2286 * iwl_mvm_mac_ctxt_add() might read directly from the device
2287 * (the system time), so make sure it is available.
2289 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_START_AP
);
2293 mutex_lock(&mvm
->mutex
);
2295 /* Send the beacon template */
2296 ret
= iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
);
2301 * Re-calculate the tsf id, as the master-slave relations depend on the
2302 * beacon interval, which was not known when the AP interface was added.
2304 if (vif
->type
== NL80211_IFTYPE_AP
)
2305 iwl_mvm_mac_ctxt_recalc_tsf_id(mvm
, vif
);
2307 /* Add the mac context */
2308 ret
= iwl_mvm_mac_ctxt_add(mvm
, vif
);
2312 /* Perform the binding */
2313 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
2317 /* Send the bcast station. At this stage the TBTT and DTIM time events
2318 * are added and applied to the scheduler */
2319 ret
= iwl_mvm_send_add_bcast_sta(mvm
, vif
);
2323 /* must be set before quota calculations */
2324 mvmvif
->ap_ibss_active
= true;
2326 /* power updated needs to be done before quotas */
2327 iwl_mvm_power_update_mac(mvm
);
2329 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
2331 goto out_quota_failed
;
2333 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2334 if (vif
->p2p
&& mvm
->p2p_device_vif
)
2335 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
2337 iwl_mvm_ref(mvm
, IWL_MVM_REF_AP_IBSS
);
2339 iwl_mvm_bt_coex_vif_change(mvm
);
2341 /* we don't support TDLS during DCM */
2342 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2343 iwl_mvm_teardown_tdls_peers(mvm
);
2348 iwl_mvm_power_update_mac(mvm
);
2349 mvmvif
->ap_ibss_active
= false;
2350 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
2352 iwl_mvm_binding_remove_vif(mvm
, vif
);
2354 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
2356 mutex_unlock(&mvm
->mutex
);
2357 iwl_mvm_unref(mvm
, IWL_MVM_REF_START_AP
);
2361 static void iwl_mvm_stop_ap_ibss(struct ieee80211_hw
*hw
,
2362 struct ieee80211_vif
*vif
)
2364 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2365 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2367 iwl_mvm_prepare_mac_removal(mvm
, vif
);
2369 mutex_lock(&mvm
->mutex
);
2371 /* Handle AP stop while in CSA */
2372 if (rcu_access_pointer(mvm
->csa_vif
) == vif
) {
2373 iwl_mvm_remove_time_event(mvm
, mvmvif
,
2374 &mvmvif
->time_event_data
);
2375 RCU_INIT_POINTER(mvm
->csa_vif
, NULL
);
2378 if (rcu_access_pointer(mvm
->csa_tx_blocked_vif
) == vif
) {
2379 RCU_INIT_POINTER(mvm
->csa_tx_blocked_vif
, NULL
);
2380 mvm
->csa_tx_block_bcn_timeout
= 0;
2383 mvmvif
->ap_ibss_active
= false;
2384 mvm
->ap_last_beacon_gp2
= 0;
2386 iwl_mvm_bt_coex_vif_change(mvm
);
2388 iwl_mvm_unref(mvm
, IWL_MVM_REF_AP_IBSS
);
2390 /* Need to update the P2P Device MAC (only GO, IBSS is single vif) */
2391 if (vif
->p2p
&& mvm
->p2p_device_vif
)
2392 iwl_mvm_mac_ctxt_changed(mvm
, mvm
->p2p_device_vif
, false, NULL
);
2394 iwl_mvm_update_quotas(mvm
, false, NULL
);
2395 iwl_mvm_send_rm_bcast_sta(mvm
, vif
);
2396 iwl_mvm_binding_remove_vif(mvm
, vif
);
2398 iwl_mvm_power_update_mac(mvm
);
2400 iwl_mvm_mac_ctxt_remove(mvm
, vif
);
2402 mutex_unlock(&mvm
->mutex
);
2406 iwl_mvm_bss_info_changed_ap_ibss(struct iwl_mvm
*mvm
,
2407 struct ieee80211_vif
*vif
,
2408 struct ieee80211_bss_conf
*bss_conf
,
2411 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2413 /* Changes will be applied when the AP/IBSS is started */
2414 if (!mvmvif
->ap_ibss_active
)
2417 if (changes
& (BSS_CHANGED_ERP_CTS_PROT
| BSS_CHANGED_HT
|
2418 BSS_CHANGED_BANDWIDTH
| BSS_CHANGED_QOS
) &&
2419 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
))
2420 IWL_ERR(mvm
, "failed to update MAC %pM\n", vif
->addr
);
2422 /* Need to send a new beacon template to the FW */
2423 if (changes
& BSS_CHANGED_BEACON
&&
2424 iwl_mvm_mac_ctxt_beacon_changed(mvm
, vif
))
2425 IWL_WARN(mvm
, "Failed updating beacon data\n");
2427 if (changes
& BSS_CHANGED_TXPOWER
) {
2428 IWL_DEBUG_CALIB(mvm
, "Changing TX Power to %d\n",
2430 iwl_mvm_set_tx_power(mvm
, vif
, bss_conf
->txpower
);
2435 static void iwl_mvm_bss_info_changed(struct ieee80211_hw
*hw
,
2436 struct ieee80211_vif
*vif
,
2437 struct ieee80211_bss_conf
*bss_conf
,
2440 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2443 * iwl_mvm_bss_info_changed_station() might call
2444 * iwl_mvm_protect_session(), which reads directly from
2445 * the device (the system time), so make sure it is available.
2447 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_BSS_CHANGED
))
2450 mutex_lock(&mvm
->mutex
);
2452 if (changes
& BSS_CHANGED_IDLE
&& !bss_conf
->idle
)
2453 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_SCHED
, true);
2455 switch (vif
->type
) {
2456 case NL80211_IFTYPE_STATION
:
2457 iwl_mvm_bss_info_changed_station(mvm
, vif
, bss_conf
, changes
);
2459 case NL80211_IFTYPE_AP
:
2460 case NL80211_IFTYPE_ADHOC
:
2461 iwl_mvm_bss_info_changed_ap_ibss(mvm
, vif
, bss_conf
, changes
);
2464 /* shouldn't happen */
2468 mutex_unlock(&mvm
->mutex
);
2469 iwl_mvm_unref(mvm
, IWL_MVM_REF_BSS_CHANGED
);
2472 static int iwl_mvm_mac_hw_scan(struct ieee80211_hw
*hw
,
2473 struct ieee80211_vif
*vif
,
2474 struct ieee80211_scan_request
*hw_req
)
2476 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2479 if (hw_req
->req
.n_channels
== 0 ||
2480 hw_req
->req
.n_channels
> mvm
->fw
->ucode_capa
.n_scan_channels
)
2483 mutex_lock(&mvm
->mutex
);
2484 ret
= iwl_mvm_reg_scan_start(mvm
, vif
, &hw_req
->req
, &hw_req
->ies
);
2485 mutex_unlock(&mvm
->mutex
);
2490 static void iwl_mvm_mac_cancel_hw_scan(struct ieee80211_hw
*hw
,
2491 struct ieee80211_vif
*vif
)
2493 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2495 mutex_lock(&mvm
->mutex
);
2497 /* Due to a race condition, it's possible that mac80211 asks
2498 * us to stop a hw_scan when it's already stopped. This can
2499 * happen, for instance, if we stopped the scan ourselves,
2500 * called ieee80211_scan_completed() and the userspace called
2501 * cancel scan scan before ieee80211_scan_work() could run.
2502 * To handle that, simply return if the scan is not running.
2504 if (mvm
->scan_status
& IWL_MVM_SCAN_REGULAR
)
2505 iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_REGULAR
, true);
2507 mutex_unlock(&mvm
->mutex
);
2511 iwl_mvm_mac_allow_buffered_frames(struct ieee80211_hw
*hw
,
2512 struct ieee80211_sta
*sta
, u16 tids
,
2514 enum ieee80211_frame_release_type reason
,
2517 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2519 /* Called when we need to transmit (a) frame(s) from mac80211 */
2521 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2522 tids
, more_data
, false);
2526 iwl_mvm_mac_release_buffered_frames(struct ieee80211_hw
*hw
,
2527 struct ieee80211_sta
*sta
, u16 tids
,
2529 enum ieee80211_frame_release_type reason
,
2532 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2534 /* Called when we need to transmit (a) frame(s) from agg queue */
2536 iwl_mvm_sta_modify_sleep_tx_count(mvm
, sta
, reason
, num_frames
,
2537 tids
, more_data
, true);
2540 static void iwl_mvm_mac_sta_notify(struct ieee80211_hw
*hw
,
2541 struct ieee80211_vif
*vif
,
2542 enum sta_notify_cmd cmd
,
2543 struct ieee80211_sta
*sta
)
2545 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2546 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
2547 unsigned long txqs
= 0, tids
= 0;
2550 spin_lock_bh(&mvmsta
->lock
);
2551 for (tid
= 0; tid
< IWL_MAX_TID_COUNT
; tid
++) {
2552 struct iwl_mvm_tid_data
*tid_data
= &mvmsta
->tid_data
[tid
];
2554 if (tid_data
->state
!= IWL_AGG_ON
&&
2555 tid_data
->state
!= IWL_EMPTYING_HW_QUEUE_DELBA
)
2558 __set_bit(tid_data
->txq_id
, &txqs
);
2560 if (iwl_mvm_tid_queued(tid_data
) == 0)
2563 __set_bit(tid
, &tids
);
2567 case STA_NOTIFY_SLEEP
:
2568 if (atomic_read(&mvm
->pending_frames
[mvmsta
->sta_id
]) > 0)
2569 ieee80211_sta_block_awake(hw
, sta
, true);
2571 for_each_set_bit(tid
, &tids
, IWL_MAX_TID_COUNT
)
2572 ieee80211_sta_set_buffered(sta
, tid
, true);
2575 iwl_trans_freeze_txq_timer(mvm
->trans
, txqs
, true);
2577 * The fw updates the STA to be asleep. Tx packets on the Tx
2578 * queues to this station will not be transmitted. The fw will
2579 * send a Tx response with TX_STATUS_FAIL_DEST_PS.
2582 case STA_NOTIFY_AWAKE
:
2583 if (WARN_ON(mvmsta
->sta_id
== IWL_MVM_STATION_COUNT
))
2587 iwl_trans_freeze_txq_timer(mvm
->trans
, txqs
, false);
2588 iwl_mvm_sta_modify_ps_wake(mvm
, sta
);
2593 spin_unlock_bh(&mvmsta
->lock
);
2596 static void iwl_mvm_sta_pre_rcu_remove(struct ieee80211_hw
*hw
,
2597 struct ieee80211_vif
*vif
,
2598 struct ieee80211_sta
*sta
)
2600 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2601 struct iwl_mvm_sta
*mvm_sta
= iwl_mvm_sta_from_mac80211(sta
);
2604 * This is called before mac80211 does RCU synchronisation,
2605 * so here we already invalidate our internal RCU-protected
2606 * station pointer. The rest of the code will thus no longer
2607 * be able to find the station this way, and we don't rely
2608 * on further RCU synchronisation after the sta_state()
2609 * callback deleted the station.
2611 mutex_lock(&mvm
->mutex
);
2612 if (sta
== rcu_access_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
]))
2613 rcu_assign_pointer(mvm
->fw_id_to_mac_id
[mvm_sta
->sta_id
],
2615 mutex_unlock(&mvm
->mutex
);
2618 static void iwl_mvm_check_uapsd(struct iwl_mvm
*mvm
, struct ieee80211_vif
*vif
,
2621 if (!(mvm
->fw
->ucode_capa
.flags
& IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT
))
2624 if (iwlwifi_mod_params
.uapsd_disable
) {
2625 vif
->driver_flags
&= ~IEEE80211_VIF_SUPPORTS_UAPSD
;
2629 vif
->driver_flags
|= IEEE80211_VIF_SUPPORTS_UAPSD
;
2632 static int iwl_mvm_mac_sta_state(struct ieee80211_hw
*hw
,
2633 struct ieee80211_vif
*vif
,
2634 struct ieee80211_sta
*sta
,
2635 enum ieee80211_sta_state old_state
,
2636 enum ieee80211_sta_state new_state
)
2638 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2639 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2642 IWL_DEBUG_MAC80211(mvm
, "station %pM state change %d->%d\n",
2643 sta
->addr
, old_state
, new_state
);
2645 /* this would be a mac80211 bug ... but don't crash */
2646 if (WARN_ON_ONCE(!mvmvif
->phy_ctxt
))
2649 /* if a STA is being removed, reuse its ID */
2650 flush_work(&mvm
->sta_drained_wk
);
2652 mutex_lock(&mvm
->mutex
);
2653 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2654 new_state
== IEEE80211_STA_NONE
) {
2656 * Firmware bug - it'll crash if the beacon interval is less
2657 * than 16. We can't avoid connecting at all, so refuse the
2658 * station state change, this will cause mac80211 to abandon
2659 * attempts to connect to this AP, and eventually wpa_s will
2660 * blacklist the AP...
2662 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2663 vif
->bss_conf
.beacon_int
< 16) {
2665 "AP %pM beacon interval is %d, refusing due to firmware bug!\n",
2666 sta
->addr
, vif
->bss_conf
.beacon_int
);
2673 iwl_mvm_tdls_sta_count(mvm
, NULL
) ==
2674 IWL_MVM_TDLS_STA_COUNT
||
2675 iwl_mvm_phy_ctx_count(mvm
) > 1)) {
2676 IWL_DEBUG_MAC80211(mvm
, "refusing TDLS sta\n");
2681 ret
= iwl_mvm_add_sta(mvm
, vif
, sta
);
2682 if (sta
->tdls
&& ret
== 0)
2683 iwl_mvm_recalc_tdls_state(mvm
, vif
, true);
2684 } else if (old_state
== IEEE80211_STA_NONE
&&
2685 new_state
== IEEE80211_STA_AUTH
) {
2687 * EBS may be disabled due to previous failures reported by FW.
2688 * Reset EBS status here assuming environment has been changed.
2690 mvm
->last_ebs_successful
= true;
2691 iwl_mvm_check_uapsd(mvm
, vif
, sta
->addr
);
2693 } else if (old_state
== IEEE80211_STA_AUTH
&&
2694 new_state
== IEEE80211_STA_ASSOC
) {
2695 ret
= iwl_mvm_update_sta(mvm
, vif
, sta
);
2697 iwl_mvm_rs_rate_init(mvm
, sta
,
2698 mvmvif
->phy_ctxt
->channel
->band
,
2700 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2701 new_state
== IEEE80211_STA_AUTHORIZED
) {
2703 /* we don't support TDLS during DCM */
2704 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
2705 iwl_mvm_teardown_tdls_peers(mvm
);
2707 /* enable beacon filtering */
2708 WARN_ON(iwl_mvm_enable_beacon_filter(mvm
, vif
, 0));
2710 } else if (old_state
== IEEE80211_STA_AUTHORIZED
&&
2711 new_state
== IEEE80211_STA_ASSOC
) {
2712 /* disable beacon filtering */
2713 WARN_ON(iwl_mvm_disable_beacon_filter(mvm
, vif
, 0));
2715 } else if (old_state
== IEEE80211_STA_ASSOC
&&
2716 new_state
== IEEE80211_STA_AUTH
) {
2718 } else if (old_state
== IEEE80211_STA_AUTH
&&
2719 new_state
== IEEE80211_STA_NONE
) {
2721 } else if (old_state
== IEEE80211_STA_NONE
&&
2722 new_state
== IEEE80211_STA_NOTEXIST
) {
2723 ret
= iwl_mvm_rm_sta(mvm
, vif
, sta
);
2725 iwl_mvm_recalc_tdls_state(mvm
, vif
, false);
2730 mutex_unlock(&mvm
->mutex
);
2732 if (sta
->tdls
&& ret
== 0) {
2733 if (old_state
== IEEE80211_STA_NOTEXIST
&&
2734 new_state
== IEEE80211_STA_NONE
)
2735 ieee80211_reserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2736 else if (old_state
== IEEE80211_STA_NONE
&&
2737 new_state
== IEEE80211_STA_NOTEXIST
)
2738 ieee80211_unreserve_tid(sta
, IWL_MVM_TDLS_FW_TID
);
2744 static int iwl_mvm_mac_set_rts_threshold(struct ieee80211_hw
*hw
, u32 value
)
2746 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2748 mvm
->rts_threshold
= value
;
2753 static void iwl_mvm_sta_rc_update(struct ieee80211_hw
*hw
,
2754 struct ieee80211_vif
*vif
,
2755 struct ieee80211_sta
*sta
, u32 changed
)
2757 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2759 if (vif
->type
== NL80211_IFTYPE_STATION
&&
2760 changed
& IEEE80211_RC_NSS_CHANGED
)
2761 iwl_mvm_sf_update(mvm
, vif
, false);
2764 static int iwl_mvm_mac_conf_tx(struct ieee80211_hw
*hw
,
2765 struct ieee80211_vif
*vif
, u16 ac
,
2766 const struct ieee80211_tx_queue_params
*params
)
2768 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2769 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
2771 mvmvif
->queue_params
[ac
] = *params
;
2774 * No need to update right away, we'll get BSS_CHANGED_QOS
2775 * The exception is P2P_DEVICE interface which needs immediate update.
2777 if (vif
->type
== NL80211_IFTYPE_P2P_DEVICE
) {
2780 mutex_lock(&mvm
->mutex
);
2781 ret
= iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
2782 mutex_unlock(&mvm
->mutex
);
2788 static void iwl_mvm_mac_mgd_prepare_tx(struct ieee80211_hw
*hw
,
2789 struct ieee80211_vif
*vif
)
2791 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2792 u32 duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MAX_TIME_MS
,
2793 200 + vif
->bss_conf
.beacon_int
);
2794 u32 min_duration
= min(IWL_MVM_TE_SESSION_PROTECTION_MIN_TIME_MS
,
2795 100 + vif
->bss_conf
.beacon_int
);
2797 if (WARN_ON_ONCE(vif
->bss_conf
.assoc
))
2801 * iwl_mvm_protect_session() reads directly from the device
2802 * (the system time), so make sure it is available.
2804 if (iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PREPARE_TX
))
2807 mutex_lock(&mvm
->mutex
);
2808 /* Try really hard to protect the session and hear a beacon */
2809 iwl_mvm_protect_session(mvm
, vif
, duration
, min_duration
, 500, false);
2810 mutex_unlock(&mvm
->mutex
);
2812 iwl_mvm_unref(mvm
, IWL_MVM_REF_PREPARE_TX
);
2815 static int iwl_mvm_mac_sched_scan_start(struct ieee80211_hw
*hw
,
2816 struct ieee80211_vif
*vif
,
2817 struct cfg80211_sched_scan_request
*req
,
2818 struct ieee80211_scan_ies
*ies
)
2820 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2824 mutex_lock(&mvm
->mutex
);
2826 if (!vif
->bss_conf
.idle
) {
2831 ret
= iwl_mvm_sched_scan_start(mvm
, vif
, req
, ies
, IWL_MVM_SCAN_SCHED
);
2834 mutex_unlock(&mvm
->mutex
);
2838 static int iwl_mvm_mac_sched_scan_stop(struct ieee80211_hw
*hw
,
2839 struct ieee80211_vif
*vif
)
2841 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2844 mutex_lock(&mvm
->mutex
);
2846 /* Due to a race condition, it's possible that mac80211 asks
2847 * us to stop a sched_scan when it's already stopped. This
2848 * can happen, for instance, if we stopped the scan ourselves,
2849 * called ieee80211_sched_scan_stopped() and the userspace called
2850 * stop sched scan scan before ieee80211_sched_scan_stopped_work()
2851 * could run. To handle this, simply return if the scan is
2854 if (!(mvm
->scan_status
& IWL_MVM_SCAN_SCHED
)) {
2855 mutex_unlock(&mvm
->mutex
);
2859 ret
= iwl_mvm_scan_stop(mvm
, IWL_MVM_SCAN_SCHED
, false);
2860 mutex_unlock(&mvm
->mutex
);
2861 iwl_mvm_wait_for_async_handlers(mvm
);
2866 static int iwl_mvm_mac_set_key(struct ieee80211_hw
*hw
,
2867 enum set_key_cmd cmd
,
2868 struct ieee80211_vif
*vif
,
2869 struct ieee80211_sta
*sta
,
2870 struct ieee80211_key_conf
*key
)
2872 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2875 if (iwlwifi_mod_params
.sw_crypto
) {
2876 IWL_DEBUG_MAC80211(mvm
, "leave - hwcrypto disabled\n");
2880 switch (key
->cipher
) {
2881 case WLAN_CIPHER_SUITE_TKIP
:
2882 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_MMIC
;
2884 case WLAN_CIPHER_SUITE_CCMP
:
2885 key
->flags
|= IEEE80211_KEY_FLAG_GENERATE_IV
;
2887 case WLAN_CIPHER_SUITE_AES_CMAC
:
2888 WARN_ON_ONCE(!ieee80211_hw_check(hw
, MFP_CAPABLE
));
2890 case WLAN_CIPHER_SUITE_WEP40
:
2891 case WLAN_CIPHER_SUITE_WEP104
:
2892 /* For non-client mode, only use WEP keys for TX as we probably
2893 * don't have a station yet anyway and would then have to keep
2894 * track of the keys, linking them to each of the clients/peers
2895 * as they appear. For now, don't do that, for performance WEP
2896 * offload doesn't really matter much, but we need it for some
2897 * other offload features in client mode.
2899 if (vif
->type
!= NL80211_IFTYPE_STATION
)
2903 /* currently FW supports only one optional cipher scheme */
2904 if (hw
->n_cipher_schemes
&&
2905 hw
->cipher_schemes
->cipher
== key
->cipher
)
2906 key
->flags
|= IEEE80211_KEY_FLAG_PUT_IV_SPACE
;
2911 mutex_lock(&mvm
->mutex
);
2915 if ((vif
->type
== NL80211_IFTYPE_ADHOC
||
2916 vif
->type
== NL80211_IFTYPE_AP
) && !sta
) {
2918 * GTK on AP interface is a TX-only key, return 0;
2919 * on IBSS they're per-station and because we're lazy
2920 * we don't support them for RX, so do the same.
2923 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2927 /* During FW restart, in order to restore the state as it was,
2928 * don't try to reprogram keys we previously failed for.
2930 if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART
, &mvm
->status
) &&
2931 key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2932 IWL_DEBUG_MAC80211(mvm
,
2933 "skip invalid idx key programming during restart\n");
2938 IWL_DEBUG_MAC80211(mvm
, "set hwcrypto key\n");
2939 ret
= iwl_mvm_set_sta_key(mvm
, vif
, sta
, key
,
2940 test_bit(IWL_MVM_STATUS_IN_HW_RESTART
,
2943 IWL_WARN(mvm
, "set key failed\n");
2945 * can't add key for RX, but we don't need it
2946 * in the device for TX so still return 0
2948 key
->hw_key_idx
= STA_KEY_IDX_INVALID
;
2954 if (key
->hw_key_idx
== STA_KEY_IDX_INVALID
) {
2959 IWL_DEBUG_MAC80211(mvm
, "disable hwcrypto key\n");
2960 ret
= iwl_mvm_remove_sta_key(mvm
, vif
, sta
, key
);
2966 mutex_unlock(&mvm
->mutex
);
2970 static void iwl_mvm_mac_update_tkip_key(struct ieee80211_hw
*hw
,
2971 struct ieee80211_vif
*vif
,
2972 struct ieee80211_key_conf
*keyconf
,
2973 struct ieee80211_sta
*sta
,
2974 u32 iv32
, u16
*phase1key
)
2976 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
2978 if (keyconf
->hw_key_idx
== STA_KEY_IDX_INVALID
)
2981 iwl_mvm_update_tkip_key(mvm
, vif
, keyconf
, sta
, iv32
, phase1key
);
2985 static bool iwl_mvm_rx_aux_roc(struct iwl_notif_wait_data
*notif_wait
,
2986 struct iwl_rx_packet
*pkt
, void *data
)
2988 struct iwl_mvm
*mvm
=
2989 container_of(notif_wait
, struct iwl_mvm
, notif_wait
);
2990 struct iwl_hs20_roc_res
*resp
;
2991 int resp_len
= iwl_rx_packet_payload_len(pkt
);
2992 struct iwl_mvm_time_event_data
*te_data
= data
;
2994 if (WARN_ON(pkt
->hdr
.cmd
!= HOT_SPOT_CMD
))
2997 if (WARN_ON_ONCE(resp_len
!= sizeof(*resp
))) {
2998 IWL_ERR(mvm
, "Invalid HOT_SPOT_CMD response\n");
3002 resp
= (void *)pkt
->data
;
3005 "Aux ROC: Recieved response from ucode: status=%d uid=%d\n",
3006 resp
->status
, resp
->event_unique_id
);
3008 te_data
->uid
= le32_to_cpu(resp
->event_unique_id
);
3009 IWL_DEBUG_TE(mvm
, "TIME_EVENT_CMD response - UID = 0x%x\n",
3012 spin_lock_bh(&mvm
->time_event_lock
);
3013 list_add_tail(&te_data
->list
, &mvm
->aux_roc_te_list
);
3014 spin_unlock_bh(&mvm
->time_event_lock
);
3019 #define AUX_ROC_MAX_DELAY_ON_CHANNEL 200
3020 static int iwl_mvm_send_aux_roc_cmd(struct iwl_mvm
*mvm
,
3021 struct ieee80211_channel
*channel
,
3022 struct ieee80211_vif
*vif
,
3025 int res
, time_reg
= DEVICE_SYSTEM_TIME_REG
;
3026 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3027 struct iwl_mvm_time_event_data
*te_data
= &mvmvif
->hs_time_event_data
;
3028 static const u8 time_event_response
[] = { HOT_SPOT_CMD
};
3029 struct iwl_notification_wait wait_time_event
;
3030 struct iwl_hs20_roc_req aux_roc_req
= {
3031 .action
= cpu_to_le32(FW_CTXT_ACTION_ADD
),
3033 cpu_to_le32(FW_CMD_ID_AND_COLOR(MAC_INDEX_AUX
, 0)),
3034 .sta_id_and_color
= cpu_to_le32(mvm
->aux_sta
.sta_id
),
3035 /* Set the channel info data */
3036 .channel_info
.band
= (channel
->band
== IEEE80211_BAND_2GHZ
) ?
3037 PHY_BAND_24
: PHY_BAND_5
,
3038 .channel_info
.channel
= channel
->hw_value
,
3039 .channel_info
.width
= PHY_VHT_CHANNEL_MODE20
,
3040 /* Set the time and duration */
3041 .apply_time
= cpu_to_le32(iwl_read_prph(mvm
->trans
, time_reg
)),
3042 .apply_time_max_delay
=
3043 cpu_to_le32(MSEC_TO_TU(AUX_ROC_MAX_DELAY_ON_CHANNEL
)),
3044 .duration
= cpu_to_le32(MSEC_TO_TU(duration
)),
3047 /* Set the node address */
3048 memcpy(aux_roc_req
.node_addr
, vif
->addr
, ETH_ALEN
);
3050 lockdep_assert_held(&mvm
->mutex
);
3052 spin_lock_bh(&mvm
->time_event_lock
);
3054 if (WARN_ON(te_data
->id
== HOT_SPOT_CMD
)) {
3055 spin_unlock_bh(&mvm
->time_event_lock
);
3060 te_data
->duration
= duration
;
3061 te_data
->id
= HOT_SPOT_CMD
;
3063 spin_unlock_bh(&mvm
->time_event_lock
);
3066 * Use a notification wait, which really just processes the
3067 * command response and doesn't wait for anything, in order
3068 * to be able to process the response and get the UID inside
3069 * the RX path. Using CMD_WANT_SKB doesn't work because it
3070 * stores the buffer and then wakes up this thread, by which
3071 * time another notification (that the time event started)
3072 * might already be processed unsuccessfully.
3074 iwl_init_notification_wait(&mvm
->notif_wait
, &wait_time_event
,
3075 time_event_response
,
3076 ARRAY_SIZE(time_event_response
),
3077 iwl_mvm_rx_aux_roc
, te_data
);
3079 res
= iwl_mvm_send_cmd_pdu(mvm
, HOT_SPOT_CMD
, 0, sizeof(aux_roc_req
),
3083 IWL_ERR(mvm
, "Couldn't send HOT_SPOT_CMD: %d\n", res
);
3084 iwl_remove_notification(&mvm
->notif_wait
, &wait_time_event
);
3088 /* No need to wait for anything, so just pass 1 (0 isn't valid) */
3089 res
= iwl_wait_notification(&mvm
->notif_wait
, &wait_time_event
, 1);
3090 /* should never fail */
3095 spin_lock_bh(&mvm
->time_event_lock
);
3096 iwl_mvm_te_clear_data(mvm
, te_data
);
3097 spin_unlock_bh(&mvm
->time_event_lock
);
3103 static int iwl_mvm_roc(struct ieee80211_hw
*hw
,
3104 struct ieee80211_vif
*vif
,
3105 struct ieee80211_channel
*channel
,
3107 enum ieee80211_roc_type type
)
3109 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3110 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3111 struct cfg80211_chan_def chandef
;
3112 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
3115 IWL_DEBUG_MAC80211(mvm
, "enter (%d, %d, %d)\n", channel
->hw_value
,
3118 flush_work(&mvm
->roc_done_wk
);
3120 mutex_lock(&mvm
->mutex
);
3122 switch (vif
->type
) {
3123 case NL80211_IFTYPE_STATION
:
3124 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
3125 IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT
)) {
3126 /* Use aux roc framework (HS20) */
3127 ret
= iwl_mvm_send_aux_roc_cmd(mvm
, channel
,
3131 IWL_ERR(mvm
, "hotspot not supported\n");
3134 case NL80211_IFTYPE_P2P_DEVICE
:
3138 IWL_ERR(mvm
, "vif isn't P2P_DEVICE: %d\n", vif
->type
);
3143 for (i
= 0; i
< NUM_PHY_CTX
; i
++) {
3144 phy_ctxt
= &mvm
->phy_ctxts
[i
];
3145 if (phy_ctxt
->ref
== 0 || mvmvif
->phy_ctxt
== phy_ctxt
)
3148 if (phy_ctxt
->ref
&& channel
== phy_ctxt
->channel
) {
3150 * Unbind the P2P_DEVICE from the current PHY context,
3151 * and if the PHY context is not used remove it.
3153 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
3154 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
3157 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
3159 /* Bind the P2P_DEVICE to the current PHY Context */
3160 mvmvif
->phy_ctxt
= phy_ctxt
;
3162 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3163 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
3166 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
3167 goto schedule_time_event
;
3171 /* Need to update the PHY context only if the ROC channel changed */
3172 if (channel
== mvmvif
->phy_ctxt
->channel
)
3173 goto schedule_time_event
;
3175 cfg80211_chandef_create(&chandef
, channel
, NL80211_CHAN_NO_HT
);
3178 * Change the PHY context configuration as it is currently referenced
3179 * only by the P2P Device MAC
3181 if (mvmvif
->phy_ctxt
->ref
== 1) {
3182 ret
= iwl_mvm_phy_ctxt_changed(mvm
, mvmvif
->phy_ctxt
,
3188 * The PHY context is shared with other MACs. Need to remove the
3189 * P2P Device from the binding, allocate an new PHY context and
3190 * create a new binding
3192 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
3198 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &chandef
,
3201 IWL_ERR(mvm
, "Failed to change PHY context\n");
3205 /* Unbind the P2P_DEVICE from the current PHY context */
3206 ret
= iwl_mvm_binding_remove_vif(mvm
, vif
);
3207 if (WARN(ret
, "Failed unbinding P2P_DEVICE\n"))
3210 iwl_mvm_phy_ctxt_unref(mvm
, mvmvif
->phy_ctxt
);
3212 /* Bind the P2P_DEVICE to the new allocated PHY context */
3213 mvmvif
->phy_ctxt
= phy_ctxt
;
3215 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3216 if (WARN(ret
, "Failed binding P2P_DEVICE\n"))
3219 iwl_mvm_phy_ctxt_ref(mvm
, mvmvif
->phy_ctxt
);
3222 schedule_time_event
:
3223 /* Schedule the time events */
3224 ret
= iwl_mvm_start_p2p_roc(mvm
, vif
, duration
, type
);
3227 mutex_unlock(&mvm
->mutex
);
3228 IWL_DEBUG_MAC80211(mvm
, "leave\n");
3232 static int iwl_mvm_cancel_roc(struct ieee80211_hw
*hw
)
3234 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3236 IWL_DEBUG_MAC80211(mvm
, "enter\n");
3238 mutex_lock(&mvm
->mutex
);
3239 iwl_mvm_stop_roc(mvm
);
3240 mutex_unlock(&mvm
->mutex
);
3242 IWL_DEBUG_MAC80211(mvm
, "leave\n");
3246 static int __iwl_mvm_add_chanctx(struct iwl_mvm
*mvm
,
3247 struct ieee80211_chanctx_conf
*ctx
)
3249 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3250 struct iwl_mvm_phy_ctxt
*phy_ctxt
;
3253 lockdep_assert_held(&mvm
->mutex
);
3255 IWL_DEBUG_MAC80211(mvm
, "Add channel context\n");
3257 phy_ctxt
= iwl_mvm_get_free_phy_ctxt(mvm
);
3263 ret
= iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
3264 ctx
->rx_chains_static
,
3265 ctx
->rx_chains_dynamic
);
3267 IWL_ERR(mvm
, "Failed to add PHY context\n");
3271 iwl_mvm_phy_ctxt_ref(mvm
, phy_ctxt
);
3272 *phy_ctxt_id
= phy_ctxt
->id
;
3277 static int iwl_mvm_add_chanctx(struct ieee80211_hw
*hw
,
3278 struct ieee80211_chanctx_conf
*ctx
)
3280 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3283 mutex_lock(&mvm
->mutex
);
3284 ret
= __iwl_mvm_add_chanctx(mvm
, ctx
);
3285 mutex_unlock(&mvm
->mutex
);
3290 static void __iwl_mvm_remove_chanctx(struct iwl_mvm
*mvm
,
3291 struct ieee80211_chanctx_conf
*ctx
)
3293 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3294 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3296 lockdep_assert_held(&mvm
->mutex
);
3298 iwl_mvm_phy_ctxt_unref(mvm
, phy_ctxt
);
3301 static void iwl_mvm_remove_chanctx(struct ieee80211_hw
*hw
,
3302 struct ieee80211_chanctx_conf
*ctx
)
3304 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3306 mutex_lock(&mvm
->mutex
);
3307 __iwl_mvm_remove_chanctx(mvm
, ctx
);
3308 mutex_unlock(&mvm
->mutex
);
3311 static void iwl_mvm_change_chanctx(struct ieee80211_hw
*hw
,
3312 struct ieee80211_chanctx_conf
*ctx
,
3315 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3316 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3317 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3319 if (WARN_ONCE((phy_ctxt
->ref
> 1) &&
3320 (changed
& ~(IEEE80211_CHANCTX_CHANGE_WIDTH
|
3321 IEEE80211_CHANCTX_CHANGE_RX_CHAINS
|
3322 IEEE80211_CHANCTX_CHANGE_RADAR
|
3323 IEEE80211_CHANCTX_CHANGE_MIN_WIDTH
)),
3324 "Cannot change PHY. Ref=%d, changed=0x%X\n",
3325 phy_ctxt
->ref
, changed
))
3328 mutex_lock(&mvm
->mutex
);
3329 iwl_mvm_bt_coex_vif_change(mvm
);
3330 iwl_mvm_phy_ctxt_changed(mvm
, phy_ctxt
, &ctx
->min_def
,
3331 ctx
->rx_chains_static
,
3332 ctx
->rx_chains_dynamic
);
3333 mutex_unlock(&mvm
->mutex
);
3336 static int __iwl_mvm_assign_vif_chanctx(struct iwl_mvm
*mvm
,
3337 struct ieee80211_vif
*vif
,
3338 struct ieee80211_chanctx_conf
*ctx
,
3339 bool switching_chanctx
)
3341 u16
*phy_ctxt_id
= (u16
*)ctx
->drv_priv
;
3342 struct iwl_mvm_phy_ctxt
*phy_ctxt
= &mvm
->phy_ctxts
[*phy_ctxt_id
];
3343 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3346 lockdep_assert_held(&mvm
->mutex
);
3348 mvmvif
->phy_ctxt
= phy_ctxt
;
3350 switch (vif
->type
) {
3351 case NL80211_IFTYPE_AP
:
3352 /* only needed if we're switching chanctx (i.e. during CSA) */
3353 if (switching_chanctx
) {
3354 mvmvif
->ap_ibss_active
= true;
3357 case NL80211_IFTYPE_ADHOC
:
3359 * The AP binding flow is handled as part of the start_ap flow
3360 * (in bss_info_changed), similarly for IBSS.
3364 case NL80211_IFTYPE_STATION
:
3366 case NL80211_IFTYPE_MONITOR
:
3367 /* always disable PS when a monitor interface is active */
3368 mvmvif
->ps_disabled
= true;
3375 ret
= iwl_mvm_binding_add_vif(mvm
, vif
);
3380 * Power state must be updated before quotas,
3381 * otherwise fw will complain.
3383 iwl_mvm_power_update_mac(mvm
);
3385 /* Setting the quota at this stage is only required for monitor
3386 * interfaces. For the other types, the bss_info changed flow
3387 * will handle quota settings.
3389 if (vif
->type
== NL80211_IFTYPE_MONITOR
) {
3390 mvmvif
->monitor_active
= true;
3391 ret
= iwl_mvm_update_quotas(mvm
, false, NULL
);
3393 goto out_remove_binding
;
3396 /* Handle binding during CSA */
3397 if (vif
->type
== NL80211_IFTYPE_AP
) {
3398 iwl_mvm_update_quotas(mvm
, false, NULL
);
3399 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
3402 if (switching_chanctx
&& vif
->type
== NL80211_IFTYPE_STATION
) {
3403 u32 duration
= 2 * vif
->bss_conf
.beacon_int
;
3405 /* iwl_mvm_protect_session() reads directly from the
3406 * device (the system time), so make sure it is
3409 ret
= iwl_mvm_ref_sync(mvm
, IWL_MVM_REF_PROTECT_CSA
);
3411 goto out_remove_binding
;
3413 /* Protect the session to make sure we hear the first
3414 * beacon on the new channel.
3416 iwl_mvm_protect_session(mvm
, vif
, duration
, duration
,
3417 vif
->bss_conf
.beacon_int
/ 2,
3420 iwl_mvm_unref(mvm
, IWL_MVM_REF_PROTECT_CSA
);
3422 iwl_mvm_update_quotas(mvm
, false, NULL
);
3428 iwl_mvm_binding_remove_vif(mvm
, vif
);
3429 iwl_mvm_power_update_mac(mvm
);
3432 mvmvif
->phy_ctxt
= NULL
;
3435 static int iwl_mvm_assign_vif_chanctx(struct ieee80211_hw
*hw
,
3436 struct ieee80211_vif
*vif
,
3437 struct ieee80211_chanctx_conf
*ctx
)
3439 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3442 mutex_lock(&mvm
->mutex
);
3443 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vif
, ctx
, false);
3444 mutex_unlock(&mvm
->mutex
);
3449 static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm
*mvm
,
3450 struct ieee80211_vif
*vif
,
3451 struct ieee80211_chanctx_conf
*ctx
,
3452 bool switching_chanctx
)
3454 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3455 struct ieee80211_vif
*disabled_vif
= NULL
;
3457 lockdep_assert_held(&mvm
->mutex
);
3459 iwl_mvm_remove_time_event(mvm
, mvmvif
, &mvmvif
->time_event_data
);
3461 switch (vif
->type
) {
3462 case NL80211_IFTYPE_ADHOC
:
3464 case NL80211_IFTYPE_MONITOR
:
3465 mvmvif
->monitor_active
= false;
3466 mvmvif
->ps_disabled
= false;
3468 case NL80211_IFTYPE_AP
:
3469 /* This part is triggered only during CSA */
3470 if (!switching_chanctx
|| !mvmvif
->ap_ibss_active
)
3473 mvmvif
->csa_countdown
= false;
3475 /* Set CS bit on all the stations */
3476 iwl_mvm_modify_all_sta_disable_tx(mvm
, mvmvif
, true);
3478 /* Save blocked iface, the timeout is set on the next beacon */
3479 rcu_assign_pointer(mvm
->csa_tx_blocked_vif
, vif
);
3481 mvmvif
->ap_ibss_active
= false;
3483 case NL80211_IFTYPE_STATION
:
3484 if (!switching_chanctx
)
3489 iwl_mvm_mac_ctxt_changed(mvm
, vif
, true, NULL
);
3495 iwl_mvm_update_quotas(mvm
, false, disabled_vif
);
3496 iwl_mvm_binding_remove_vif(mvm
, vif
);
3499 mvmvif
->phy_ctxt
= NULL
;
3500 iwl_mvm_power_update_mac(mvm
);
3503 static void iwl_mvm_unassign_vif_chanctx(struct ieee80211_hw
*hw
,
3504 struct ieee80211_vif
*vif
,
3505 struct ieee80211_chanctx_conf
*ctx
)
3507 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3509 mutex_lock(&mvm
->mutex
);
3510 __iwl_mvm_unassign_vif_chanctx(mvm
, vif
, ctx
, false);
3511 mutex_unlock(&mvm
->mutex
);
3515 iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm
*mvm
,
3516 struct ieee80211_vif_chanctx_switch
*vifs
)
3520 mutex_lock(&mvm
->mutex
);
3521 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
3522 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].old_ctx
);
3524 ret
= __iwl_mvm_add_chanctx(mvm
, vifs
[0].new_ctx
);
3526 IWL_ERR(mvm
, "failed to add new_ctx during channel switch\n");
3530 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
3534 "failed to assign new_ctx during channel switch\n");
3538 /* we don't support TDLS during DCM - can be caused by channel switch */
3539 if (iwl_mvm_phy_ctx_count(mvm
) > 1)
3540 iwl_mvm_teardown_tdls_peers(mvm
);
3545 __iwl_mvm_remove_chanctx(mvm
, vifs
[0].new_ctx
);
3548 if (__iwl_mvm_add_chanctx(mvm
, vifs
[0].old_ctx
)) {
3549 IWL_ERR(mvm
, "failed to add old_ctx back after failure.\n");
3553 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3555 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3562 /* things keep failing, better restart the hw */
3563 iwl_mvm_nic_restart(mvm
, false);
3566 mutex_unlock(&mvm
->mutex
);
3572 iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm
*mvm
,
3573 struct ieee80211_vif_chanctx_switch
*vifs
)
3577 mutex_lock(&mvm
->mutex
);
3578 __iwl_mvm_unassign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
, true);
3580 ret
= __iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].new_ctx
,
3584 "failed to assign new_ctx during channel switch\n");
3591 if (__iwl_mvm_assign_vif_chanctx(mvm
, vifs
[0].vif
, vifs
[0].old_ctx
,
3593 IWL_ERR(mvm
, "failed to reassign old_ctx after failure.\n");
3600 /* things keep failing, better restart the hw */
3601 iwl_mvm_nic_restart(mvm
, false);
3604 mutex_unlock(&mvm
->mutex
);
3609 static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw
*hw
,
3610 struct ieee80211_vif_chanctx_switch
*vifs
,
3612 enum ieee80211_chanctx_switch_mode mode
)
3614 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3617 /* we only support a single-vif right now */
3622 case CHANCTX_SWMODE_SWAP_CONTEXTS
:
3623 ret
= iwl_mvm_switch_vif_chanctx_swap(mvm
, vifs
);
3625 case CHANCTX_SWMODE_REASSIGN_VIF
:
3626 ret
= iwl_mvm_switch_vif_chanctx_reassign(mvm
, vifs
);
3636 static int iwl_mvm_set_tim(struct ieee80211_hw
*hw
,
3637 struct ieee80211_sta
*sta
,
3640 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3641 struct iwl_mvm_sta
*mvm_sta
= iwl_mvm_sta_from_mac80211(sta
);
3643 if (!mvm_sta
|| !mvm_sta
->vif
) {
3644 IWL_ERR(mvm
, "Station is not associated to a vif\n");
3648 return iwl_mvm_mac_ctxt_beacon_changed(mvm
, mvm_sta
->vif
);
3651 #ifdef CONFIG_NL80211_TESTMODE
3652 static const struct nla_policy iwl_mvm_tm_policy
[IWL_MVM_TM_ATTR_MAX
+ 1] = {
3653 [IWL_MVM_TM_ATTR_CMD
] = { .type
= NLA_U32
},
3654 [IWL_MVM_TM_ATTR_NOA_DURATION
] = { .type
= NLA_U32
},
3655 [IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
] = { .type
= NLA_U32
},
3658 static int __iwl_mvm_mac_testmode_cmd(struct iwl_mvm
*mvm
,
3659 struct ieee80211_vif
*vif
,
3660 void *data
, int len
)
3662 struct nlattr
*tb
[IWL_MVM_TM_ATTR_MAX
+ 1];
3666 err
= nla_parse(tb
, IWL_MVM_TM_ATTR_MAX
, data
, len
, iwl_mvm_tm_policy
);
3670 if (!tb
[IWL_MVM_TM_ATTR_CMD
])
3673 switch (nla_get_u32(tb
[IWL_MVM_TM_ATTR_CMD
])) {
3674 case IWL_MVM_TM_CMD_SET_NOA
:
3675 if (!vif
|| vif
->type
!= NL80211_IFTYPE_AP
|| !vif
->p2p
||
3676 !vif
->bss_conf
.enable_beacon
||
3677 !tb
[IWL_MVM_TM_ATTR_NOA_DURATION
])
3680 noa_duration
= nla_get_u32(tb
[IWL_MVM_TM_ATTR_NOA_DURATION
]);
3681 if (noa_duration
>= vif
->bss_conf
.beacon_int
)
3684 mvm
->noa_duration
= noa_duration
;
3687 return iwl_mvm_update_quotas(mvm
, false, NULL
);
3688 case IWL_MVM_TM_CMD_SET_BEACON_FILTER
:
3689 /* must be associated client vif - ignore authorized */
3690 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
||
3691 !vif
->bss_conf
.assoc
|| !vif
->bss_conf
.dtim_period
||
3692 !tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
])
3695 if (nla_get_u32(tb
[IWL_MVM_TM_ATTR_BEACON_FILTER_STATE
]))
3696 return iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
3697 return iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3703 static int iwl_mvm_mac_testmode_cmd(struct ieee80211_hw
*hw
,
3704 struct ieee80211_vif
*vif
,
3705 void *data
, int len
)
3707 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3710 mutex_lock(&mvm
->mutex
);
3711 err
= __iwl_mvm_mac_testmode_cmd(mvm
, vif
, data
, len
);
3712 mutex_unlock(&mvm
->mutex
);
3718 static void iwl_mvm_channel_switch(struct ieee80211_hw
*hw
,
3719 struct ieee80211_vif
*vif
,
3720 struct ieee80211_channel_switch
*chsw
)
3722 /* By implementing this operation, we prevent mac80211 from
3723 * starting its own channel switch timer, so that we can call
3724 * ieee80211_chswitch_done() ourselves at the right time
3725 * (which is when the absence time event starts).
3728 IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw
),
3729 "dummy channel switch op\n");
3732 static int iwl_mvm_pre_channel_switch(struct ieee80211_hw
*hw
,
3733 struct ieee80211_vif
*vif
,
3734 struct ieee80211_channel_switch
*chsw
)
3736 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3737 struct ieee80211_vif
*csa_vif
;
3738 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3742 mutex_lock(&mvm
->mutex
);
3744 mvmvif
->csa_failed
= false;
3746 IWL_DEBUG_MAC80211(mvm
, "pre CSA to freq %d\n",
3747 chsw
->chandef
.center_freq1
);
3749 iwl_fw_dbg_trigger_simple_stop(mvm
, vif
, FW_DBG_TRIGGER_CHANNEL_SWITCH
);
3751 switch (vif
->type
) {
3752 case NL80211_IFTYPE_AP
:
3754 rcu_dereference_protected(mvm
->csa_vif
,
3755 lockdep_is_held(&mvm
->mutex
));
3756 if (WARN_ONCE(csa_vif
&& csa_vif
->csa_active
,
3757 "Another CSA is already in progress")) {
3762 rcu_assign_pointer(mvm
->csa_vif
, vif
);
3764 if (WARN_ONCE(mvmvif
->csa_countdown
,
3765 "Previous CSA countdown didn't complete")) {
3771 case NL80211_IFTYPE_STATION
:
3772 /* Schedule the time event to a bit before beacon 1,
3773 * to make sure we're in the new channel when the
3776 apply_time
= chsw
->device_timestamp
+
3777 ((vif
->bss_conf
.beacon_int
* (chsw
->count
- 1) -
3778 IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT
) * 1024);
3781 iwl_mvm_csa_client_absent(mvm
, vif
);
3783 iwl_mvm_schedule_csa_period(mvm
, vif
, vif
->bss_conf
.beacon_int
,
3785 if (mvmvif
->bf_data
.bf_enabled
) {
3786 ret
= iwl_mvm_disable_beacon_filter(mvm
, vif
, 0);
3796 mvmvif
->ps_disabled
= true;
3798 ret
= iwl_mvm_power_update_ps(mvm
);
3802 /* we won't be on this channel any longer */
3803 iwl_mvm_teardown_tdls_peers(mvm
);
3806 mutex_unlock(&mvm
->mutex
);
3811 static int iwl_mvm_post_channel_switch(struct ieee80211_hw
*hw
,
3812 struct ieee80211_vif
*vif
)
3814 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3815 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3818 mutex_lock(&mvm
->mutex
);
3820 if (mvmvif
->csa_failed
) {
3821 mvmvif
->csa_failed
= false;
3826 if (vif
->type
== NL80211_IFTYPE_STATION
) {
3827 struct iwl_mvm_sta
*mvmsta
;
3829 mvmsta
= iwl_mvm_sta_from_staid_protected(mvm
,
3832 if (WARN_ON(!mvmsta
)) {
3837 iwl_mvm_sta_modify_disable_tx(mvm
, mvmsta
, false);
3839 iwl_mvm_mac_ctxt_changed(mvm
, vif
, false, NULL
);
3841 ret
= iwl_mvm_enable_beacon_filter(mvm
, vif
, 0);
3845 iwl_mvm_stop_session_protection(mvm
, vif
);
3848 mvmvif
->ps_disabled
= false;
3850 ret
= iwl_mvm_power_update_ps(mvm
);
3853 mutex_unlock(&mvm
->mutex
);
3858 static void iwl_mvm_mac_flush(struct ieee80211_hw
*hw
,
3859 struct ieee80211_vif
*vif
, u32 queues
, bool drop
)
3861 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3862 struct iwl_mvm_vif
*mvmvif
;
3863 struct iwl_mvm_sta
*mvmsta
;
3864 struct ieee80211_sta
*sta
;
3868 if (!vif
|| vif
->type
!= NL80211_IFTYPE_STATION
)
3871 mutex_lock(&mvm
->mutex
);
3872 mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3874 /* flush the AP-station and all TDLS peers */
3875 for (i
= 0; i
< IWL_MVM_STATION_COUNT
; i
++) {
3876 sta
= rcu_dereference_protected(mvm
->fw_id_to_mac_id
[i
],
3877 lockdep_is_held(&mvm
->mutex
));
3878 if (IS_ERR_OR_NULL(sta
))
3881 mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
3882 if (mvmsta
->vif
!= vif
)
3885 /* make sure only TDLS peers or the AP are flushed */
3886 WARN_ON(i
!= mvmvif
->ap_sta_id
&& !sta
->tdls
);
3888 msk
|= mvmsta
->tfd_queue_msk
;
3892 if (iwl_mvm_flush_tx_path(mvm
, msk
, true))
3893 IWL_ERR(mvm
, "flush request fail\n");
3894 mutex_unlock(&mvm
->mutex
);
3896 mutex_unlock(&mvm
->mutex
);
3898 /* this can take a while, and we may need/want other operations
3899 * to succeed while doing this, so do it without the mutex held
3901 iwl_trans_wait_tx_queue_empty(mvm
->trans
, msk
);
3905 static int iwl_mvm_mac_get_survey(struct ieee80211_hw
*hw
, int idx
,
3906 struct survey_info
*survey
)
3908 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3911 memset(survey
, 0, sizeof(*survey
));
3913 /* only support global statistics right now */
3917 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
3918 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS
))
3921 mutex_lock(&mvm
->mutex
);
3923 if (mvm
->ucode_loaded
) {
3924 ret
= iwl_mvm_request_statistics(mvm
, false);
3929 survey
->filled
= SURVEY_INFO_TIME
|
3930 SURVEY_INFO_TIME_RX
|
3931 SURVEY_INFO_TIME_TX
|
3932 SURVEY_INFO_TIME_SCAN
;
3933 survey
->time
= mvm
->accu_radio_stats
.on_time_rf
+
3934 mvm
->radio_stats
.on_time_rf
;
3935 do_div(survey
->time
, USEC_PER_MSEC
);
3937 survey
->time_rx
= mvm
->accu_radio_stats
.rx_time
+
3938 mvm
->radio_stats
.rx_time
;
3939 do_div(survey
->time_rx
, USEC_PER_MSEC
);
3941 survey
->time_tx
= mvm
->accu_radio_stats
.tx_time
+
3942 mvm
->radio_stats
.tx_time
;
3943 do_div(survey
->time_tx
, USEC_PER_MSEC
);
3945 survey
->time_scan
= mvm
->accu_radio_stats
.on_time_scan
+
3946 mvm
->radio_stats
.on_time_scan
;
3947 do_div(survey
->time_scan
, USEC_PER_MSEC
);
3951 mutex_unlock(&mvm
->mutex
);
3955 static void iwl_mvm_mac_sta_statistics(struct ieee80211_hw
*hw
,
3956 struct ieee80211_vif
*vif
,
3957 struct ieee80211_sta
*sta
,
3958 struct station_info
*sinfo
)
3960 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
3961 struct iwl_mvm_vif
*mvmvif
= iwl_mvm_vif_from_mac80211(vif
);
3962 struct iwl_mvm_sta
*mvmsta
= iwl_mvm_sta_from_mac80211(sta
);
3964 if (fw_has_capa(&mvm
->fw
->ucode_capa
,
3965 IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS
))
3968 /* if beacon filtering isn't on mac80211 does it anyway */
3969 if (!(vif
->driver_flags
& IEEE80211_VIF_BEACON_FILTER
))
3972 if (!vif
->bss_conf
.assoc
)
3975 mutex_lock(&mvm
->mutex
);
3977 if (mvmvif
->ap_sta_id
!= mvmsta
->sta_id
)
3980 if (iwl_mvm_request_statistics(mvm
, false))
3983 sinfo
->rx_beacon
= mvmvif
->beacon_stats
.num_beacons
+
3984 mvmvif
->beacon_stats
.accu_num_beacons
;
3985 sinfo
->filled
|= BIT(NL80211_STA_INFO_BEACON_RX
);
3986 if (mvmvif
->beacon_stats
.avg_signal
) {
3987 /* firmware only reports a value after RXing a few beacons */
3988 sinfo
->rx_beacon_signal_avg
= mvmvif
->beacon_stats
.avg_signal
;
3989 sinfo
->filled
|= BIT(NL80211_STA_INFO_BEACON_SIGNAL_AVG
);
3992 mutex_unlock(&mvm
->mutex
);
3995 static void iwl_mvm_event_mlme_callback(struct iwl_mvm
*mvm
,
3996 struct ieee80211_vif
*vif
,
3997 const struct ieee80211_event
*event
)
3999 #define CHECK_MLME_TRIGGER(_mvm, _trig, _buf, _cnt, _fmt...) \
4001 if ((_cnt) && --(_cnt)) \
4003 iwl_mvm_fw_dbg_collect_trig(_mvm, _trig, _fmt);\
4006 struct iwl_fw_dbg_trigger_tlv
*trig
;
4007 struct iwl_fw_dbg_trigger_mlme
*trig_mlme
;
4009 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_MLME
))
4012 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_MLME
);
4013 trig_mlme
= (void *)trig
->data
;
4014 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
4017 if (event
->u
.mlme
.data
== ASSOC_EVENT
) {
4018 if (event
->u
.mlme
.status
== MLME_DENIED
)
4019 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
4020 trig_mlme
->stop_assoc_denied
,
4021 "DENIED ASSOC: 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_assoc_timeout
,
4027 } else if (event
->u
.mlme
.data
== AUTH_EVENT
) {
4028 if (event
->u
.mlme
.status
== MLME_DENIED
)
4029 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
4030 trig_mlme
->stop_auth_denied
,
4031 "DENIED AUTH: reason %d",
4032 event
->u
.mlme
.reason
);
4033 else if (event
->u
.mlme
.status
== MLME_TIMEOUT
)
4034 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
4035 trig_mlme
->stop_auth_timeout
,
4037 } else if (event
->u
.mlme
.data
== DEAUTH_RX_EVENT
) {
4038 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
4039 trig_mlme
->stop_rx_deauth
,
4040 "DEAUTH RX %d", event
->u
.mlme
.reason
);
4041 } else if (event
->u
.mlme
.data
== DEAUTH_TX_EVENT
) {
4042 CHECK_MLME_TRIGGER(mvm
, trig
, buf
,
4043 trig_mlme
->stop_tx_deauth
,
4044 "DEAUTH TX %d", event
->u
.mlme
.reason
);
4046 #undef CHECK_MLME_TRIGGER
4049 static void iwl_mvm_event_bar_rx_callback(struct iwl_mvm
*mvm
,
4050 struct ieee80211_vif
*vif
,
4051 const struct ieee80211_event
*event
)
4053 struct iwl_fw_dbg_trigger_tlv
*trig
;
4054 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
4056 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
4059 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
4060 ba_trig
= (void *)trig
->data
;
4061 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
4064 if (!(le16_to_cpu(ba_trig
->rx_bar
) & BIT(event
->u
.ba
.tid
)))
4067 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
4068 "BAR received from %pM, tid %d, ssn %d",
4069 event
->u
.ba
.sta
->addr
, event
->u
.ba
.tid
,
4074 iwl_mvm_event_frame_timeout_callback(struct iwl_mvm
*mvm
,
4075 struct ieee80211_vif
*vif
,
4076 const struct ieee80211_event
*event
)
4078 struct iwl_fw_dbg_trigger_tlv
*trig
;
4079 struct iwl_fw_dbg_trigger_ba
*ba_trig
;
4081 if (!iwl_fw_dbg_trigger_enabled(mvm
->fw
, FW_DBG_TRIGGER_BA
))
4084 trig
= iwl_fw_dbg_get_trigger(mvm
->fw
, FW_DBG_TRIGGER_BA
);
4085 ba_trig
= (void *)trig
->data
;
4086 if (!iwl_fw_dbg_trigger_check_stop(mvm
, vif
, trig
))
4089 if (!(le16_to_cpu(ba_trig
->frame_timeout
) & BIT(event
->u
.ba
.tid
)))
4092 iwl_mvm_fw_dbg_collect_trig(mvm
, trig
,
4093 "Frame from %pM timed out, tid %d",
4094 event
->u
.ba
.sta
->addr
, event
->u
.ba
.tid
);
4097 static void iwl_mvm_mac_event_callback(struct ieee80211_hw
*hw
,
4098 struct ieee80211_vif
*vif
,
4099 const struct ieee80211_event
*event
)
4101 struct iwl_mvm
*mvm
= IWL_MAC80211_GET_MVM(hw
);
4103 switch (event
->type
) {
4105 iwl_mvm_event_mlme_callback(mvm
, vif
, event
);
4108 iwl_mvm_event_bar_rx_callback(mvm
, vif
, event
);
4110 case BA_FRAME_TIMEOUT
:
4111 iwl_mvm_event_frame_timeout_callback(mvm
, vif
, event
);
4118 const struct ieee80211_ops iwl_mvm_hw_ops
= {
4119 .tx
= iwl_mvm_mac_tx
,
4120 .ampdu_action
= iwl_mvm_mac_ampdu_action
,
4121 .start
= iwl_mvm_mac_start
,
4122 .reconfig_complete
= iwl_mvm_mac_reconfig_complete
,
4123 .stop
= iwl_mvm_mac_stop
,
4124 .add_interface
= iwl_mvm_mac_add_interface
,
4125 .remove_interface
= iwl_mvm_mac_remove_interface
,
4126 .config
= iwl_mvm_mac_config
,
4127 .prepare_multicast
= iwl_mvm_prepare_multicast
,
4128 .configure_filter
= iwl_mvm_configure_filter
,
4129 .bss_info_changed
= iwl_mvm_bss_info_changed
,
4130 .hw_scan
= iwl_mvm_mac_hw_scan
,
4131 .cancel_hw_scan
= iwl_mvm_mac_cancel_hw_scan
,
4132 .sta_pre_rcu_remove
= iwl_mvm_sta_pre_rcu_remove
,
4133 .sta_state
= iwl_mvm_mac_sta_state
,
4134 .sta_notify
= iwl_mvm_mac_sta_notify
,
4135 .allow_buffered_frames
= iwl_mvm_mac_allow_buffered_frames
,
4136 .release_buffered_frames
= iwl_mvm_mac_release_buffered_frames
,
4137 .set_rts_threshold
= iwl_mvm_mac_set_rts_threshold
,
4138 .sta_rc_update
= iwl_mvm_sta_rc_update
,
4139 .conf_tx
= iwl_mvm_mac_conf_tx
,
4140 .mgd_prepare_tx
= iwl_mvm_mac_mgd_prepare_tx
,
4141 .mgd_protect_tdls_discover
= iwl_mvm_mac_mgd_protect_tdls_discover
,
4142 .flush
= iwl_mvm_mac_flush
,
4143 .sched_scan_start
= iwl_mvm_mac_sched_scan_start
,
4144 .sched_scan_stop
= iwl_mvm_mac_sched_scan_stop
,
4145 .set_key
= iwl_mvm_mac_set_key
,
4146 .update_tkip_key
= iwl_mvm_mac_update_tkip_key
,
4147 .remain_on_channel
= iwl_mvm_roc
,
4148 .cancel_remain_on_channel
= iwl_mvm_cancel_roc
,
4149 .add_chanctx
= iwl_mvm_add_chanctx
,
4150 .remove_chanctx
= iwl_mvm_remove_chanctx
,
4151 .change_chanctx
= iwl_mvm_change_chanctx
,
4152 .assign_vif_chanctx
= iwl_mvm_assign_vif_chanctx
,
4153 .unassign_vif_chanctx
= iwl_mvm_unassign_vif_chanctx
,
4154 .switch_vif_chanctx
= iwl_mvm_switch_vif_chanctx
,
4156 .start_ap
= iwl_mvm_start_ap_ibss
,
4157 .stop_ap
= iwl_mvm_stop_ap_ibss
,
4158 .join_ibss
= iwl_mvm_start_ap_ibss
,
4159 .leave_ibss
= iwl_mvm_stop_ap_ibss
,
4161 .set_tim
= iwl_mvm_set_tim
,
4163 .channel_switch
= iwl_mvm_channel_switch
,
4164 .pre_channel_switch
= iwl_mvm_pre_channel_switch
,
4165 .post_channel_switch
= iwl_mvm_post_channel_switch
,
4167 .tdls_channel_switch
= iwl_mvm_tdls_channel_switch
,
4168 .tdls_cancel_channel_switch
= iwl_mvm_tdls_cancel_channel_switch
,
4169 .tdls_recv_channel_switch
= iwl_mvm_tdls_recv_channel_switch
,
4171 .event_callback
= iwl_mvm_mac_event_callback
,
4173 CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd
)
4175 #ifdef CONFIG_PM_SLEEP
4177 .suspend
= iwl_mvm_suspend
,
4178 .resume
= iwl_mvm_resume
,
4179 .set_wakeup
= iwl_mvm_set_wakeup
,
4180 .set_rekey_data
= iwl_mvm_set_rekey_data
,
4181 #if IS_ENABLED(CONFIG_IPV6)
4182 .ipv6_addr_change
= iwl_mvm_ipv6_addr_change
,
4184 .set_default_unicast_key
= iwl_mvm_set_default_unicast_key
,
4186 .get_survey
= iwl_mvm_mac_get_survey
,
4187 .sta_statistics
= iwl_mvm_mac_sta_statistics
,