1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * Copyright 2002-2005, Instant802 Networks, Inc.
4 * Copyright 2005, Devicescape Software, Inc.
5 * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
6 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
7 * Copyright 2013-2015 Intel Mobile Communications GmbH
8 * Copyright (C) 2018-2022 Intel Corporation
14 #include <linux/kernel.h>
15 #include <linux/device.h>
16 #include <linux/if_ether.h>
17 #include <linux/interrupt.h>
18 #include <linux/list.h>
19 #include <linux/netdevice.h>
20 #include <linux/skbuff.h>
21 #include <linux/workqueue.h>
22 #include <linux/types.h>
23 #include <linux/spinlock.h>
24 #include <linux/etherdevice.h>
25 #include <linux/leds.h>
26 #include <linux/idr.h>
27 #include <linux/rhashtable.h>
28 #include <linux/rbtree.h>
29 #include <net/ieee80211_radiotap.h>
30 #include <net/cfg80211.h>
31 #include <net/mac80211.h>
37 extern const struct cfg80211_ops mac80211_config_ops;
39 struct ieee80211_local;
41 /* Maximum number of broadcast/multicast frames to buffer when some of the
42 * associated stations are using power saving. */
43 #define AP_MAX_BC_BUFFER 128
45 /* Maximum number of frames buffered to all STAs, including multicast frames.
46 * Note: increasing this limit increases the potential memory requirement. Each
47 * frame can be up to about 2 kB long. */
48 #define TOTAL_MAX_TX_BUFFER 512
50 /* Required encryption head and tailroom */
51 #define IEEE80211_ENCRYPT_HEADROOM 8
52 #define IEEE80211_ENCRYPT_TAILROOM 18
54 /* power level hasn't been configured (or set to automatic) */
55 #define IEEE80211_UNSET_POWER_LEVEL INT_MIN
58 * Some APs experience problems when working with U-APSD. Decreasing the
59 * probability of that happening by using legacy mode for all ACs but VO isn't
62 * Cisco 4410N originally forced us to enable VO by default only because it
63 * treated non-VO ACs as legacy.
65 * However some APs (notably Netgear R7000) silently reclassify packets to
66 * different ACs. Since u-APSD ACs require trigger frames for frame retrieval
67 * clients would never see some frames (e.g. ARP responses) or would fetch them
68 * accidentally after a long time.
70 * It makes little sense to enable u-APSD queues by default because it needs
71 * userspace applications to be aware of it to actually take advantage of the
72 * possible additional powersavings. Implicitly depending on driver autotrigger
73 * frame support doesn't make much sense.
75 #define IEEE80211_DEFAULT_UAPSD_QUEUES 0
77 #define IEEE80211_DEFAULT_MAX_SP_LEN \
78 IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL
80 extern const u8 ieee80211_ac_to_qos_mask[IEEE80211_NUM_ACS];
82 #define IEEE80211_DEAUTH_FRAME_LEN (24 /* hdr */ + 2 /* reason */)
84 #define IEEE80211_MAX_NAN_INSTANCE_ID 255
86 struct ieee80211_bss {
87 u32 device_ts_beacon, device_ts_presp;
92 #define IEEE80211_MAX_SUPP_RATES 32
93 u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
94 size_t supp_rates_len;
95 struct ieee80211_rate *beacon_rate;
100 * During association, we save an ERP value from a probe response so
101 * that we can feed ERP info to the driver when handling the
102 * association completes. these fields probably won't be up-to-date
103 * otherwise, you probably don't want to use them.
108 /* Keep track of the corruption of the last beacon/probe response. */
111 /* Keep track of what bits of information we have valid info for. */
116 * enum ieee80211_corrupt_data_flags - BSS data corruption flags
117 * @IEEE80211_BSS_CORRUPT_BEACON: last beacon frame received was corrupted
118 * @IEEE80211_BSS_CORRUPT_PROBE_RESP: last probe response received was corrupted
120 * These are bss flags that are attached to a bss in the
121 * @corrupt_data field of &struct ieee80211_bss.
123 enum ieee80211_bss_corrupt_data_flags {
124 IEEE80211_BSS_CORRUPT_BEACON = BIT(0),
125 IEEE80211_BSS_CORRUPT_PROBE_RESP = BIT(1)
129 * enum ieee80211_valid_data_flags - BSS valid data flags
130 * @IEEE80211_BSS_VALID_WMM: WMM/UAPSD data was gathered from non-corrupt IE
131 * @IEEE80211_BSS_VALID_RATES: Supported rates were gathered from non-corrupt IE
132 * @IEEE80211_BSS_VALID_ERP: ERP flag was gathered from non-corrupt IE
134 * These are bss flags that are attached to a bss in the
135 * @valid_data field of &struct ieee80211_bss. They show which parts
136 * of the data structure were received as a result of an un-corrupted
137 * beacon/probe response.
139 enum ieee80211_bss_valid_data_flags {
140 IEEE80211_BSS_VALID_WMM = BIT(1),
141 IEEE80211_BSS_VALID_RATES = BIT(2),
142 IEEE80211_BSS_VALID_ERP = BIT(3)
145 typedef unsigned __bitwise ieee80211_tx_result;
146 #define TX_CONTINUE ((__force ieee80211_tx_result) 0u)
147 #define TX_DROP ((__force ieee80211_tx_result) 1u)
148 #define TX_QUEUED ((__force ieee80211_tx_result) 2u)
150 #define IEEE80211_TX_UNICAST BIT(1)
151 #define IEEE80211_TX_PS_BUFFERED BIT(2)
153 struct ieee80211_tx_data {
155 struct sk_buff_head skbs;
156 struct ieee80211_local *local;
157 struct ieee80211_sub_if_data *sdata;
158 struct sta_info *sta;
159 struct ieee80211_key *key;
160 struct ieee80211_tx_rate rate;
166 typedef unsigned __bitwise ieee80211_rx_result;
167 #define RX_CONTINUE ((__force ieee80211_rx_result) 0u)
168 #define RX_DROP_UNUSABLE ((__force ieee80211_rx_result) 1u)
169 #define RX_DROP_MONITOR ((__force ieee80211_rx_result) 2u)
170 #define RX_QUEUED ((__force ieee80211_rx_result) 3u)
173 * enum ieee80211_packet_rx_flags - packet RX flags
174 * @IEEE80211_RX_AMSDU: a-MSDU packet
175 * @IEEE80211_RX_MALFORMED_ACTION_FRM: action frame is malformed
176 * @IEEE80211_RX_DEFERRED_RELEASE: frame was subjected to receive reordering
178 * These are per-frame flags that are attached to a frame in the
179 * @rx_flags field of &struct ieee80211_rx_status.
181 enum ieee80211_packet_rx_flags {
182 IEEE80211_RX_AMSDU = BIT(3),
183 IEEE80211_RX_MALFORMED_ACTION_FRM = BIT(4),
184 IEEE80211_RX_DEFERRED_RELEASE = BIT(5),
188 * enum ieee80211_rx_flags - RX data flags
190 * @IEEE80211_RX_CMNTR: received on cooked monitor already
191 * @IEEE80211_RX_BEACON_REPORTED: This frame was already reported
192 * to cfg80211_report_obss_beacon().
194 * These flags are used across handling multiple interfaces
195 * for a single frame.
197 enum ieee80211_rx_flags {
198 IEEE80211_RX_CMNTR = BIT(0),
199 IEEE80211_RX_BEACON_REPORTED = BIT(1),
202 struct ieee80211_rx_data {
203 struct list_head *list;
205 struct ieee80211_local *local;
206 struct ieee80211_sub_if_data *sdata;
207 struct sta_info *sta;
208 struct ieee80211_key *key;
213 * Index into sequence numbers array, 0..16
214 * since the last (16) is used for non-QoS,
215 * will be 16 on non-QoS frames.
220 * Index into the security IV/PN arrays, 0..16
221 * since the last (16) is used for CCMP-encrypted
222 * management frames, will be set to 16 on mgmt
223 * frames and 0 on non-QoS frames.
233 u8 pn[IEEE80211_CCMP_PN_LEN];
238 struct ieee80211_csa_settings {
239 const u16 *counter_offsets_beacon;
240 const u16 *counter_offsets_presp;
242 int n_counter_offsets_beacon;
243 int n_counter_offsets_presp;
248 struct ieee80211_color_change_settings {
249 u16 counter_offset_beacon;
250 u16 counter_offset_presp;
256 int head_len, tail_len;
257 struct ieee80211_meshconf_ie *meshconf;
258 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
259 u8 cntdwn_current_counter;
260 struct cfg80211_mbssid_elems *mbssid_ies;
261 struct rcu_head rcu_head;
265 struct rcu_head rcu_head;
267 u16 cntdwn_counter_offsets[IEEE80211_MAX_CNTDWN_COUNTERS_NUM];
271 struct fils_discovery_data {
272 struct rcu_head rcu_head;
277 struct unsol_bcast_probe_resp_data {
278 struct rcu_head rcu_head;
284 /* yes, this looks ugly, but guarantees that we can later use
286 * NB: don't touch this bitmap, use sta_info_{set,clear}_tim_bit */
287 u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)]
288 __aligned(__alignof__(unsigned long));
289 struct sk_buff_head bc_buf;
290 atomic_t num_sta_ps; /* number of stations in PS mode */
295 struct ieee80211_if_ap {
296 struct list_head vlans; /* write-protected with RTNL and local->mtx */
299 atomic_t num_mcast_sta; /* number of stations receiving multicast */
301 bool multicast_to_unicast;
305 struct ieee80211_if_vlan {
306 struct list_head list; /* write-protected with RTNL and local->mtx */
308 /* used for all tx if the VLAN is configured to 4-addr mode */
309 struct sta_info __rcu *sta;
310 atomic_t num_mcast_sta; /* number of stations receiving multicast */
314 __u32 fwded_mcast; /* Mesh forwarded multicast frames */
315 __u32 fwded_unicast; /* Mesh forwarded unicast frames */
316 __u32 fwded_frames; /* Mesh total forwarded frames */
317 __u32 dropped_frames_ttl; /* Not transmitted since mesh_ttl == 0*/
318 __u32 dropped_frames_no_route; /* Not transmitted, no route found */
319 __u32 dropped_frames_congestion;/* Not forwarded due to congestion */
322 #define PREQ_Q_F_START 0x1
323 #define PREQ_Q_F_REFRESH 0x2
324 struct mesh_preq_queue {
325 struct list_head list;
330 struct ieee80211_roc_work {
331 struct list_head list;
333 struct ieee80211_sub_if_data *sdata;
335 struct ieee80211_channel *chan;
337 bool started, abort, hw_begun, notified;
340 unsigned long start_time;
342 u32 duration, req_duration;
343 struct sk_buff *frame;
344 u64 cookie, mgmt_tx_cookie;
345 enum ieee80211_roc_type type;
348 /* flags used in struct ieee80211_if_managed.flags */
349 enum ieee80211_sta_flags {
350 IEEE80211_STA_CONNECTION_POLL = BIT(1),
351 IEEE80211_STA_CONTROL_PORT = BIT(2),
352 IEEE80211_STA_DISABLE_HT = BIT(4),
353 IEEE80211_STA_MFP_ENABLED = BIT(6),
354 IEEE80211_STA_UAPSD_ENABLED = BIT(7),
355 IEEE80211_STA_NULLFUNC_ACKED = BIT(8),
356 IEEE80211_STA_RESET_SIGNAL_AVE = BIT(9),
357 IEEE80211_STA_DISABLE_40MHZ = BIT(10),
358 IEEE80211_STA_DISABLE_VHT = BIT(11),
359 IEEE80211_STA_DISABLE_80P80MHZ = BIT(12),
360 IEEE80211_STA_DISABLE_160MHZ = BIT(13),
361 IEEE80211_STA_DISABLE_WMM = BIT(14),
362 IEEE80211_STA_ENABLE_RRM = BIT(15),
363 IEEE80211_STA_DISABLE_HE = BIT(16),
364 IEEE80211_STA_DISABLE_EHT = BIT(17),
365 IEEE80211_STA_DISABLE_320MHZ = BIT(18),
368 struct ieee80211_mgd_auth_data {
369 struct cfg80211_bss *bss;
370 unsigned long timeout;
372 u16 algorithm, expected_transaction;
374 u8 key[WLAN_KEY_LEN_WEP104];
378 bool timeout_started;
380 u16 sae_trans, sae_status;
385 struct ieee80211_mgd_assoc_data {
386 struct cfg80211_bss *bss;
387 const u8 *supp_rates;
389 unsigned long timeout;
393 u8 prev_bssid[ETH_ALEN];
394 u8 ssid[IEEE80211_MAX_SSID_LEN];
400 bool timeout_started;
404 struct ieee80211_vht_cap ap_vht_cap;
406 u8 fils_nonces[2 * FILS_NONCE_LEN];
407 u8 fils_kek[FILS_MAX_KEK_LEN];
414 struct ieee80211_sta_tx_tspec {
415 /* timestamp of the first packet in the time slice */
416 unsigned long time_slice_start;
418 u32 admitted_time; /* in usecs, unlike over the air */
420 s8 up; /* signed to be able to invalidate with -1 during teardown */
422 /* consumed TX time in microseconds in the time slice */
423 u32 consumed_tx_time;
425 TX_TSPEC_ACTION_NONE = 0,
426 TX_TSPEC_ACTION_DOWNGRADE,
427 TX_TSPEC_ACTION_STOP_DOWNGRADE,
432 DECLARE_EWMA(beacon_signal, 4, 4)
434 struct ieee80211_if_managed {
435 struct timer_list timer;
436 struct timer_list conn_mon_timer;
437 struct timer_list bcn_mon_timer;
438 struct timer_list chswitch_timer;
439 struct work_struct monitor_work;
440 struct work_struct chswitch_work;
441 struct work_struct beacon_connection_loss_work;
442 struct work_struct csa_connection_drop_work;
444 unsigned long beacon_timeout;
445 unsigned long probe_timeout;
446 int probe_send_count;
447 bool nullfunc_failed;
448 u8 connection_loss:1,
453 struct ieee80211_mgd_auth_data *auth_data;
454 struct ieee80211_mgd_assoc_data *assoc_data;
456 bool powersave; /* powersave requested for this iface */
457 bool broken_ap; /* AP is broken -- turn off powersave */
462 bool status_received;
466 IEEE80211_MFP_DISABLED,
467 IEEE80211_MFP_OPTIONAL,
468 IEEE80211_MFP_REQUIRED
469 } mfp; /* management frame protection */
472 * Bitmask of enabled u-apsd queues,
473 * IEEE80211_WMM_IE_STA_QOSINFO_AC_BE & co. Needs a new association
476 unsigned int uapsd_queues;
479 * Maximum number of buffered frames AP can deliver during a
480 * service period, IEEE80211_WMM_IE_STA_QOSINFO_SP_ALL or similar.
481 * Needs a new association to take effect.
483 unsigned int uapsd_max_sp_len;
488 * State variables for keeping track of RSSI of the AP currently
489 * connected to and informing driver when RSSI has gone
490 * below/above a certain threshold.
492 int rssi_min_thold, rssi_max_thold;
494 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
495 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
496 struct ieee80211_vht_cap vht_capa; /* configured VHT overrides */
497 struct ieee80211_vht_cap vht_capa_mask; /* Valid parts of vht_capa */
498 struct ieee80211_s1g_cap s1g_capa; /* configured S1G overrides */
499 struct ieee80211_s1g_cap s1g_capa_mask; /* valid s1g_capa bits */
502 u8 tdls_peer[ETH_ALEN] __aligned(2);
503 struct delayed_work tdls_peer_del_work;
504 struct sk_buff *orig_teardown_skb; /* The original teardown skb */
505 struct sk_buff *teardown_skb; /* A copy to send through the AP */
506 spinlock_t teardown_lock; /* To lock changing teardown_skb */
507 bool tdls_chan_switch_prohibited;
508 bool tdls_wider_bw_prohibited;
510 /* WMM-AC TSPEC support */
511 struct ieee80211_sta_tx_tspec tx_tspec[IEEE80211_NUM_ACS];
512 /* Use a separate work struct so that we can do something here
513 * while the sdata->work is flushing the queues, for example.
514 * otherwise, in scenarios where we hardly get any traffic out
515 * on the BE queue, but there's a lot of VO traffic, we might
516 * get stuck in a downgraded situation and flush takes forever.
518 struct delayed_work tx_tspec_wk;
520 /* Information elements from the last transmitted (Re)Association
524 size_t assoc_req_ies_len;
527 struct ieee80211_if_ibss {
528 struct timer_list timer;
529 struct work_struct csa_connection_drop_work;
531 unsigned long last_scan_completed;
540 bool userspace_handles_dfs;
542 u8 bssid[ETH_ALEN] __aligned(2);
543 u8 ssid[IEEE80211_MAX_SSID_LEN];
546 struct cfg80211_chan_def chandef;
548 unsigned long ibss_join_req;
549 /* probe response/beacon for IBSS */
550 struct beacon_data __rcu *presp;
552 struct ieee80211_ht_cap ht_capa; /* configured ht-cap over-rides */
553 struct ieee80211_ht_cap ht_capa_mask; /* Valid parts of ht_capa */
555 spinlock_t incomplete_lock;
556 struct list_head incomplete_stations;
559 IEEE80211_IBSS_MLME_SEARCH,
560 IEEE80211_IBSS_MLME_JOINED,
565 * struct ieee80211_if_ocb - OCB mode state
567 * @housekeeping_timer: timer for periodic invocation of a housekeeping task
568 * @wrkq_flags: OCB deferred task action
569 * @incomplete_lock: delayed STA insertion lock
570 * @incomplete_stations: list of STAs waiting for delayed insertion
571 * @joined: indication if the interface is connected to an OCB network
573 struct ieee80211_if_ocb {
574 struct timer_list housekeeping_timer;
575 unsigned long wrkq_flags;
577 spinlock_t incomplete_lock;
578 struct list_head incomplete_stations;
584 * struct ieee80211_mesh_sync_ops - Extensible synchronization framework interface
586 * these declarations define the interface, which enables
587 * vendor-specific mesh synchronization
590 struct ieee802_11_elems;
591 struct ieee80211_mesh_sync_ops {
592 void (*rx_bcn_presp)(struct ieee80211_sub_if_data *sdata, u16 stype,
593 struct ieee80211_mgmt *mgmt, unsigned int len,
594 const struct ieee80211_meshconf_ie *mesh_cfg,
595 struct ieee80211_rx_status *rx_status);
597 /* should be called with beacon_data under RCU read lock */
598 void (*adjust_tsf)(struct ieee80211_sub_if_data *sdata,
599 struct beacon_data *beacon);
600 /* add other framework functions here */
603 struct mesh_csa_settings {
604 struct rcu_head rcu_head;
605 struct cfg80211_csa_settings settings;
611 * @known_gates: list of known mesh gates and their mpaths by the station. The
612 * gate's mpath may or may not be resolved and active.
613 * @gates_lock: protects updates to known_gates
614 * @rhead: the rhashtable containing struct mesh_paths, keyed by dest addr
615 * @walk_head: linked list containing all mesh_path objects
616 * @walk_lock: lock protecting walk_head
617 * @entries: number of entries in the table
620 struct hlist_head known_gates;
621 spinlock_t gates_lock;
622 struct rhashtable rhead;
623 struct hlist_head walk_head;
624 spinlock_t walk_lock;
625 atomic_t entries; /* Up to MAX_MESH_NEIGHBOURS */
628 struct ieee80211_if_mesh {
629 struct timer_list housekeeping_timer;
630 struct timer_list mesh_path_timer;
631 struct timer_list mesh_path_root_timer;
633 unsigned long wrkq_flags;
634 unsigned long mbss_changed;
636 bool userspace_handles_dfs;
638 u8 mesh_id[IEEE80211_MAX_MESH_ID_LEN];
640 /* Active Path Selection Protocol Identifier */
642 /* Active Path Selection Metric Identifier */
644 /* Congestion Control Mode Identifier */
646 /* Synchronization Protocol Identifier */
648 /* Authentication Protocol Identifier */
650 /* Local mesh Sequence Number */
652 /* Last used PREQ ID */
655 /* Timestamp of last SN update */
656 unsigned long last_sn_update;
657 /* Time when it's ok to send next PERR */
658 unsigned long next_perr;
659 /* Timestamp of last PREQ sent */
660 unsigned long last_preq;
661 struct mesh_rmc *rmc;
662 spinlock_t mesh_preq_queue_lock;
663 struct mesh_preq_queue preq_queue;
665 struct mesh_stats mshstats;
666 struct mesh_config mshcfg;
667 atomic_t estab_plinks;
669 bool accepting_plinks;
671 struct beacon_data __rcu *beacon;
675 IEEE80211_MESH_SEC_NONE = 0x0,
676 IEEE80211_MESH_SEC_AUTHED = 0x1,
677 IEEE80211_MESH_SEC_SECURED = 0x2,
680 /* Extensible Synchronization Framework */
681 const struct ieee80211_mesh_sync_ops *sync_ops;
682 s64 sync_offset_clockdrift_max;
683 spinlock_t sync_offset_lock;
684 /* mesh power save */
685 enum nl80211_mesh_power_mode nonpeer_pm;
686 int ps_peers_light_sleep;
687 int ps_peers_deep_sleep;
689 /* Channel Switching Support */
690 struct mesh_csa_settings __rcu *csa;
692 IEEE80211_MESH_CSA_ROLE_NONE,
693 IEEE80211_MESH_CSA_ROLE_INIT,
694 IEEE80211_MESH_CSA_ROLE_REPEATER,
699 /* offset from skb->data while building IE */
702 struct mesh_table mesh_paths;
703 struct mesh_table mpp_paths; /* Store paths for MPP&MAP */
704 int mesh_paths_generation;
705 int mpp_paths_generation;
708 #ifdef CONFIG_MAC80211_MESH
709 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
710 do { (msh)->mshstats.name++; } while (0)
712 #define IEEE80211_IFSTA_MESH_CTR_INC(msh, name) \
717 * enum ieee80211_sub_if_data_flags - virtual interface flags
719 * @IEEE80211_SDATA_ALLMULTI: interface wants all multicast packets
720 * @IEEE80211_SDATA_OPERATING_GMODE: operating in G-only mode
721 * @IEEE80211_SDATA_DONT_BRIDGE_PACKETS: bridge packets between
722 * associated stations and deliver multicast frames both
723 * back to wireless media and to the local net stack.
724 * @IEEE80211_SDATA_DISCONNECT_RESUME: Disconnect after resume.
725 * @IEEE80211_SDATA_IN_DRIVER: indicates interface was added to driver
726 * @IEEE80211_SDATA_DISCONNECT_HW_RESTART: Disconnect after hardware restart
729 enum ieee80211_sub_if_data_flags {
730 IEEE80211_SDATA_ALLMULTI = BIT(0),
731 IEEE80211_SDATA_OPERATING_GMODE = BIT(2),
732 IEEE80211_SDATA_DONT_BRIDGE_PACKETS = BIT(3),
733 IEEE80211_SDATA_DISCONNECT_RESUME = BIT(4),
734 IEEE80211_SDATA_IN_DRIVER = BIT(5),
735 IEEE80211_SDATA_DISCONNECT_HW_RESTART = BIT(6),
739 * enum ieee80211_sdata_state_bits - virtual interface state bits
740 * @SDATA_STATE_RUNNING: virtual interface is up & running; this
741 * mirrors netif_running() but is separate for interface type
742 * change handling while the interface is up
743 * @SDATA_STATE_OFFCHANNEL: This interface is currently in offchannel
744 * mode, so queues are stopped
745 * @SDATA_STATE_OFFCHANNEL_BEACON_STOPPED: Beaconing was stopped due
746 * to offchannel, reset when offchannel returns
748 enum ieee80211_sdata_state_bits {
750 SDATA_STATE_OFFCHANNEL,
751 SDATA_STATE_OFFCHANNEL_BEACON_STOPPED,
755 * enum ieee80211_chanctx_mode - channel context configuration mode
757 * @IEEE80211_CHANCTX_SHARED: channel context may be used by
758 * multiple interfaces
759 * @IEEE80211_CHANCTX_EXCLUSIVE: channel context can be used
760 * only by a single interface. This can be used for example for
761 * non-fixed channel IBSS.
763 enum ieee80211_chanctx_mode {
764 IEEE80211_CHANCTX_SHARED,
765 IEEE80211_CHANCTX_EXCLUSIVE
769 * enum ieee80211_chanctx_replace_state - channel context replacement state
771 * This is used for channel context in-place reservations that require channel
772 * context switch/swap.
774 * @IEEE80211_CHANCTX_REPLACE_NONE: no replacement is taking place
775 * @IEEE80211_CHANCTX_WILL_BE_REPLACED: this channel context will be replaced
776 * by a (not yet registered) channel context pointed by %replace_ctx.
777 * @IEEE80211_CHANCTX_REPLACES_OTHER: this (not yet registered) channel context
778 * replaces an existing channel context pointed to by %replace_ctx.
780 enum ieee80211_chanctx_replace_state {
781 IEEE80211_CHANCTX_REPLACE_NONE,
782 IEEE80211_CHANCTX_WILL_BE_REPLACED,
783 IEEE80211_CHANCTX_REPLACES_OTHER,
786 struct ieee80211_chanctx {
787 struct list_head list;
788 struct rcu_head rcu_head;
790 struct list_head assigned_links;
791 struct list_head reserved_links;
793 enum ieee80211_chanctx_replace_state replace_state;
794 struct ieee80211_chanctx *replace_ctx;
796 enum ieee80211_chanctx_mode mode;
799 struct ieee80211_chanctx_conf conf;
802 struct mac80211_qos_map {
803 struct cfg80211_qos_map qos_map;
804 struct rcu_head rcu_head;
807 enum txq_info_flags {
810 IEEE80211_TXQ_NO_AMSDU,
811 IEEE80211_TXQ_STOP_NETIF_TX,
815 * struct txq_info - per tid queue
817 * @tin: contains packets split into multiple flows
818 * @def_flow: used as a fallback flow when a packet destined to @tin hashes to
819 * a fq_flow which is already owned by a different tin
820 * @def_cvars: codel vars for @def_flow
821 * @schedule_order: used with ieee80211_local->active_txqs
822 * @frags: used to keep fragments created after dequeue
826 struct codel_vars def_cvars;
827 struct codel_stats cstats;
828 struct rb_node schedule_order;
830 struct sk_buff_head frags;
834 struct ieee80211_txq txq;
837 struct ieee80211_if_mntr {
839 u8 mu_follow_addr[ETH_ALEN] __aligned(2);
841 struct list_head list;
845 * struct ieee80211_if_nan - NAN state
847 * @conf: current NAN configuration
848 * @func_ids: a bitmap of available instance_id's
850 struct ieee80211_if_nan {
851 struct cfg80211_nan_conf conf;
853 /* protects function_inst_ids */
854 spinlock_t func_lock;
855 struct idr function_inst_ids;
858 struct ieee80211_link_data_managed {
859 u8 bssid[ETH_ALEN] __aligned(2);
862 enum ieee80211_smps_mode req_smps, /* requested smps mode */
863 driver_smps_mode; /* smps mode request */
869 bool csa_waiting_bcn;
870 bool csa_ignored_same_chan;
872 struct work_struct request_smps_work;
873 bool beacon_crc_valid;
875 struct ewma_beacon_signal ave_beacon_signal;
876 int last_ave_beacon_signal;
879 * Number of Beacon frames used in ave_beacon_signal. This can be used
880 * to avoid generating less reliable cqm events that would be based
881 * only on couple of received frames.
883 unsigned int count_beacon_signal;
885 /* Number of times beacon loss was invoked. */
886 unsigned int beacon_loss_count;
889 * Last Beacon frame signal strength average (ave_beacon_signal / 16)
890 * that triggered a cqm event. 0 indicates that no event has been
891 * generated for the current association.
893 int last_cqm_event_signal;
895 int wmm_last_param_set;
896 int mu_edca_last_param_set;
898 struct cfg80211_bss *bss;
901 struct ieee80211_link_data_ap {
902 struct beacon_data __rcu *beacon;
903 struct probe_resp __rcu *probe_resp;
904 struct fils_discovery_data __rcu *fils_discovery;
905 struct unsol_bcast_probe_resp_data __rcu *unsol_bcast_probe_resp;
907 /* to be used after channel switch. */
908 struct cfg80211_beacon_data *next_beacon;
911 struct ieee80211_link_data {
912 struct ieee80211_sub_if_data *sdata;
913 unsigned int link_id;
915 struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
916 struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
918 /* multicast keys only */
919 struct ieee80211_key __rcu *gtk[NUM_DEFAULT_KEYS +
920 NUM_DEFAULT_MGMT_KEYS +
921 NUM_DEFAULT_BEACON_KEYS];
922 struct ieee80211_key __rcu *default_multicast_key;
923 struct ieee80211_key __rcu *default_mgmt_key;
924 struct ieee80211_key __rcu *default_beacon_key;
926 struct airtime_info airtime[IEEE80211_NUM_ACS];
928 struct work_struct csa_finalize_work;
929 bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
930 struct cfg80211_chan_def csa_chandef;
932 struct work_struct color_change_finalize_work;
934 /* context reservation -- protected with chanctx_mtx */
935 struct ieee80211_chanctx *reserved_chanctx;
936 struct cfg80211_chan_def reserved_chandef;
937 bool reserved_radar_required;
941 enum ieee80211_smps_mode smps_mode;
943 int user_power_level; /* in dBm */
944 int ap_power_level; /* in dBm */
947 struct delayed_work dfs_cac_timer_work;
950 struct ieee80211_link_data_managed mgd;
951 struct ieee80211_link_data_ap ap;
955 struct ieee80211_sub_if_data {
956 struct list_head list;
958 struct wireless_dev wdev;
961 struct list_head key_list;
963 /* count for keys needing tailroom space allocation */
964 int crypto_tx_tailroom_needed_cnt;
965 int crypto_tx_tailroom_pending_dec;
966 struct delayed_work dec_tailroom_needed_wk;
968 struct net_device *dev;
969 struct ieee80211_local *local;
977 struct ieee80211_fragment_cache frags;
979 /* TID bitmap for NoAck policy */
982 /* bit field of ACM bits (BIT(802.1D tag)) */
985 struct ieee80211_key __rcu *keys[NUM_DEFAULT_KEYS];
986 struct ieee80211_key __rcu *default_unicast_key;
989 __be16 control_port_protocol;
990 bool control_port_no_encrypt;
991 bool control_port_no_preauth;
992 bool control_port_over_nl80211;
994 atomic_t num_tx_queued;
995 struct ieee80211_tx_queue_params tx_conf[IEEE80211_NUM_ACS];
996 struct mac80211_qos_map __rcu *qos_map;
998 /* used to reconfigure hardware SM PS */
999 struct work_struct recalc_smps;
1001 struct work_struct work;
1002 struct sk_buff_head skb_queue;
1003 struct sk_buff_head status_queue;
1006 * AP this belongs to: self in AP mode and
1007 * corresponding AP in VLAN mode, NULL for
1008 * all others (might be needed later in IBSS)
1010 struct ieee80211_if_ap *bss;
1012 /* bitmap of allowed (non-MCS) rate indexes for rate control */
1013 u32 rc_rateidx_mask[NUM_NL80211_BANDS];
1015 bool rc_has_mcs_mask[NUM_NL80211_BANDS];
1016 u8 rc_rateidx_mcs_mask[NUM_NL80211_BANDS][IEEE80211_HT_MCS_MASK_LEN];
1018 bool rc_has_vht_mcs_mask[NUM_NL80211_BANDS];
1019 u16 rc_rateidx_vht_mcs_mask[NUM_NL80211_BANDS][NL80211_VHT_NSS_MAX];
1021 /* Beacon frame (non-MCS) rate (as a bitmap) */
1022 u32 beacon_rateidx_mask[NUM_NL80211_BANDS];
1023 bool beacon_rate_set;
1026 struct ieee80211_if_ap ap;
1027 struct ieee80211_if_vlan vlan;
1028 struct ieee80211_if_managed mgd;
1029 struct ieee80211_if_ibss ibss;
1030 struct ieee80211_if_mesh mesh;
1031 struct ieee80211_if_ocb ocb;
1032 struct ieee80211_if_mntr mntr;
1033 struct ieee80211_if_nan nan;
1036 struct ieee80211_link_data deflink;
1037 struct ieee80211_link_data *link[IEEE80211_MLD_MAX_NUM_LINKS];
1039 #ifdef CONFIG_MAC80211_DEBUGFS
1041 struct dentry *subdir_stations;
1042 struct dentry *default_unicast_key;
1043 struct dentry *default_multicast_key;
1044 struct dentry *default_mgmt_key;
1045 struct dentry *default_beacon_key;
1049 /* must be last, dynamically sized area in this! */
1050 struct ieee80211_vif vif;
1054 struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
1056 return container_of(p, struct ieee80211_sub_if_data, vif);
1059 static inline void sdata_lock(struct ieee80211_sub_if_data *sdata)
1060 __acquires(&sdata->wdev.mtx)
1062 mutex_lock(&sdata->wdev.mtx);
1063 __acquire(&sdata->wdev.mtx);
1066 static inline void sdata_unlock(struct ieee80211_sub_if_data *sdata)
1067 __releases(&sdata->wdev.mtx)
1069 mutex_unlock(&sdata->wdev.mtx);
1070 __release(&sdata->wdev.mtx);
1073 #define sdata_dereference(p, sdata) \
1074 rcu_dereference_protected(p, lockdep_is_held(&sdata->wdev.mtx))
1077 sdata_assert_lock(struct ieee80211_sub_if_data *sdata)
1079 lockdep_assert_held(&sdata->wdev.mtx);
1083 ieee80211_chandef_get_shift(struct cfg80211_chan_def *chandef)
1085 switch (chandef->width) {
1086 case NL80211_CHAN_WIDTH_5:
1088 case NL80211_CHAN_WIDTH_10:
1096 ieee80211_vif_get_shift(struct ieee80211_vif *vif)
1098 struct ieee80211_chanctx_conf *chanctx_conf;
1102 chanctx_conf = rcu_dereference(vif->bss_conf.chanctx_conf);
1104 shift = ieee80211_chandef_get_shift(&chanctx_conf->def);
1111 ieee80211_get_mbssid_beacon_len(struct cfg80211_mbssid_elems *elems)
1118 for (i = 0; i < elems->cnt; i++)
1119 len += elems->elem[i].len;
1125 IEEE80211_RX_MSG = 1,
1126 IEEE80211_TX_STATUS_MSG = 2,
1129 enum queue_stop_reason {
1130 IEEE80211_QUEUE_STOP_REASON_DRIVER,
1131 IEEE80211_QUEUE_STOP_REASON_PS,
1132 IEEE80211_QUEUE_STOP_REASON_CSA,
1133 IEEE80211_QUEUE_STOP_REASON_AGGREGATION,
1134 IEEE80211_QUEUE_STOP_REASON_SUSPEND,
1135 IEEE80211_QUEUE_STOP_REASON_SKB_ADD,
1136 IEEE80211_QUEUE_STOP_REASON_OFFCHANNEL,
1137 IEEE80211_QUEUE_STOP_REASON_FLUSH,
1138 IEEE80211_QUEUE_STOP_REASON_TDLS_TEARDOWN,
1139 IEEE80211_QUEUE_STOP_REASON_RESERVE_TID,
1140 IEEE80211_QUEUE_STOP_REASON_IFTYPE_CHANGE,
1142 IEEE80211_QUEUE_STOP_REASONS,
1145 #ifdef CONFIG_MAC80211_LEDS
1146 struct tpt_led_trigger {
1148 const struct ieee80211_tpt_blink *blink_table;
1149 unsigned int blink_table_len;
1150 struct timer_list timer;
1151 struct ieee80211_local *local;
1152 unsigned long prev_traffic;
1153 unsigned long tx_bytes, rx_bytes;
1154 unsigned int active, want;
1160 * mac80211 scan flags - currently active scan mode
1162 * @SCAN_SW_SCANNING: We're currently in the process of scanning but may as
1163 * well be on the operating channel
1164 * @SCAN_HW_SCANNING: The hardware is scanning for us, we have no way to
1165 * determine if we are on the operating channel or not
1166 * @SCAN_ONCHANNEL_SCANNING: Do a software scan on only the current operating
1167 * channel. This should not interrupt normal traffic.
1168 * @SCAN_COMPLETED: Set for our scan work function when the driver reported
1169 * that the scan completed.
1170 * @SCAN_ABORTED: Set for our scan work function when the driver reported
1171 * a scan complete for an aborted scan.
1172 * @SCAN_HW_CANCELLED: Set for our scan work function when the scan is being
1174 * @SCAN_BEACON_WAIT: Set whenever we're passive scanning because of radar/no-IR
1175 * and could send a probe request after receiving a beacon.
1176 * @SCAN_BEACON_DONE: Beacon received, we can now send a probe request
1181 SCAN_ONCHANNEL_SCANNING,
1190 * enum mac80211_scan_state - scan state machine states
1192 * @SCAN_DECISION: Main entry point to the scan state machine, this state
1193 * determines if we should keep on scanning or switch back to the
1195 * @SCAN_SET_CHANNEL: Set the next channel to be scanned
1196 * @SCAN_SEND_PROBE: Send probe requests and wait for probe responses
1197 * @SCAN_SUSPEND: Suspend the scan and go back to operating channel to
1199 * @SCAN_RESUME: Resume the scan and scan the next channel
1200 * @SCAN_ABORT: Abort the scan and go back to operating channel
1202 enum mac80211_scan_state {
1212 * struct airtime_sched_info - state used for airtime scheduling and AQL
1214 * @lock: spinlock that protects all the fields in this struct
1215 * @active_txqs: rbtree of currently backlogged queues, sorted by virtual time
1216 * @schedule_pos: the current position maintained while a driver walks the tree
1217 * with ieee80211_next_txq()
1218 * @active_list: list of struct airtime_info structs that were active within
1219 * the last AIRTIME_ACTIVE_DURATION (100 ms), used to compute
1221 * @last_weight_update: used for rate limiting walking active_list
1222 * @last_schedule_time: tracks the last time a transmission was scheduled; used
1223 * for catching up v_t if no stations are eligible for
1225 * @v_t: global virtual time; queues with v_t < this are eligible for
1227 * @weight_sum: total sum of all active stations used for dividing airtime
1228 * @weight_sum_reciprocal: reciprocal of weight_sum (to avoid divisions in fast
1229 * path - see comment above
1230 * IEEE80211_RECIPROCAL_DIVISOR_64)
1231 * @aql_txq_limit_low: AQL limit when total outstanding airtime
1232 * is < IEEE80211_AQL_THRESHOLD
1233 * @aql_txq_limit_high: AQL limit when total outstanding airtime
1234 * is > IEEE80211_AQL_THRESHOLD
1236 struct airtime_sched_info {
1238 struct rb_root_cached active_txqs;
1239 struct rb_node *schedule_pos;
1240 struct list_head active_list;
1241 u64 last_weight_update;
1242 u64 last_schedule_activity;
1245 u64 weight_sum_reciprocal;
1246 u32 aql_txq_limit_low;
1247 u32 aql_txq_limit_high;
1249 DECLARE_STATIC_KEY_FALSE(aql_disable);
1251 struct ieee80211_local {
1252 /* embed the driver visible part.
1253 * don't cast (use the static inlines below), but we keep
1254 * it first anyway so they become a no-op */
1255 struct ieee80211_hw hw;
1258 struct codel_vars *cvars;
1259 struct codel_params cparams;
1261 /* protects active_txqs and txqi->schedule_order */
1262 struct airtime_sched_info airtime[IEEE80211_NUM_ACS];
1265 atomic_t aql_total_pending_airtime;
1267 const struct ieee80211_ops *ops;
1270 * private workqueue to mac80211. mac80211 makes this accessible
1271 * via ieee80211_queue_work()
1273 struct workqueue_struct *workqueue;
1275 unsigned long queue_stop_reasons[IEEE80211_MAX_QUEUES];
1276 int q_stop_reasons[IEEE80211_MAX_QUEUES][IEEE80211_QUEUE_STOP_REASONS];
1277 /* also used to protect ampdu_ac_queue and amdpu_ac_stop_refcnt */
1278 spinlock_t queue_stop_reason_lock;
1281 int monitors, cooked_mntrs;
1282 /* number of interfaces with corresponding FIF_ flags */
1283 int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss, fif_pspoll,
1286 bool rx_mcast_action_reg;
1287 unsigned int filter_flags; /* FIF_* */
1289 bool wiphy_ciphers_allocated;
1293 /* protects the aggregated multicast list and filter calls */
1294 spinlock_t filter_lock;
1296 /* used for uploading changed mc list */
1297 struct work_struct reconfig_filter;
1299 /* aggregated multicast list */
1300 struct netdev_hw_addr_list mc_list;
1302 bool tim_in_locked_section; /* see ieee80211_beacon_get() */
1305 * suspended is true if we finished all the suspend _and_ we have
1306 * not yet come up from resume. This is to be used by mac80211
1307 * to ensure driver sanity during suspend and mac80211's own
1308 * sanity. It can eventually be used for WoW as well.
1312 /* suspending is true during the whole suspend process */
1316 * Resuming is true while suspended, but when we're reprogramming the
1317 * hardware -- at that time it's allowed to use ieee80211_queue_work()
1318 * again even though some other parts of the stack are still suspended
1319 * and we still drop received frames to avoid waking the stack.
1324 * quiescing is true during the suspend process _only_ to
1325 * ease timer cancelling etc.
1329 /* device is started */
1332 /* device is during a HW reconfig */
1335 /* wowlan is enabled -- don't reconfig on resume */
1338 struct work_struct radar_detected_work;
1340 /* number of RX chains the hardware has */
1343 /* bitmap of which sbands were copied */
1346 int tx_headroom; /* required headroom for hardware/radiotap */
1348 /* Tasklet and skb queue to process calls from IRQ mode. All frames
1349 * added to skb_queue will be processed, but frames in
1350 * skb_queue_unreliable may be dropped if the total length of these
1351 * queues increases over the limit. */
1352 #define IEEE80211_IRQSAFE_QUEUE_LIMIT 128
1353 struct tasklet_struct tasklet;
1354 struct sk_buff_head skb_queue;
1355 struct sk_buff_head skb_queue_unreliable;
1357 spinlock_t rx_path_lock;
1361 * The mutex only protects the list, hash table and
1362 * counter, reads are done with RCU.
1364 struct mutex sta_mtx;
1365 spinlock_t tim_lock;
1366 unsigned long num_sta;
1367 struct list_head sta_list;
1368 struct rhltable sta_hash;
1369 struct timer_list sta_cleanup;
1372 struct sk_buff_head pending[IEEE80211_MAX_QUEUES];
1373 struct tasklet_struct tx_pending_tasklet;
1374 struct tasklet_struct wake_txqs_tasklet;
1376 atomic_t agg_queue_stop[IEEE80211_MAX_QUEUES];
1378 /* number of interfaces with allmulti RX */
1379 atomic_t iff_allmultis;
1381 struct rate_control_ref *rate_ctrl;
1383 struct arc4_ctx wep_tx_ctx;
1384 struct arc4_ctx wep_rx_ctx;
1388 struct list_head interfaces;
1389 struct list_head mon_list; /* only that are IFF_UP && !cooked */
1390 struct mutex iflist_mtx;
1393 * Key mutex, protects sdata's key_list and sta_info's
1394 * key pointers and ptk_idx (write access, they're RCU.)
1396 struct mutex key_mtx;
1398 /* mutex for scan and work locking */
1401 /* Scanning and BSS list */
1402 unsigned long scanning;
1403 struct cfg80211_ssid scan_ssid;
1404 struct cfg80211_scan_request *int_scan_req;
1405 struct cfg80211_scan_request __rcu *scan_req;
1406 struct ieee80211_scan_request *hw_scan_req;
1407 struct cfg80211_chan_def scan_chandef;
1408 enum nl80211_band hw_scan_band;
1409 int scan_channel_idx;
1411 int hw_scan_ies_bufsize;
1412 struct cfg80211_scan_info scan_info;
1414 struct work_struct sched_scan_stopped_work;
1415 struct ieee80211_sub_if_data __rcu *sched_scan_sdata;
1416 struct cfg80211_sched_scan_request __rcu *sched_scan_req;
1417 u8 scan_addr[ETH_ALEN];
1419 unsigned long leave_oper_channel_time;
1420 enum mac80211_scan_state next_scan_state;
1421 struct delayed_work scan_work;
1422 struct ieee80211_sub_if_data __rcu *scan_sdata;
1423 /* For backward compatibility only -- do not use */
1424 struct cfg80211_chan_def _oper_chandef;
1426 /* Temporary remain-on-channel for off-channel operations */
1427 struct ieee80211_channel *tmp_channel;
1429 /* channel contexts */
1430 struct list_head chanctx_list;
1431 struct mutex chanctx_mtx;
1433 #ifdef CONFIG_MAC80211_LEDS
1434 struct led_trigger tx_led, rx_led, assoc_led, radio_led;
1435 struct led_trigger tpt_led;
1436 atomic_t tx_led_active, rx_led_active, assoc_led_active;
1437 atomic_t radio_led_active, tpt_led_active;
1438 struct tpt_led_trigger *tpt_led_trigger;
1441 #ifdef CONFIG_MAC80211_DEBUG_COUNTERS
1443 /* dot11CountersTable */
1444 u32 dot11TransmittedFragmentCount;
1445 u32 dot11MulticastTransmittedFrameCount;
1446 u32 dot11FailedCount;
1447 u32 dot11RetryCount;
1448 u32 dot11MultipleRetryCount;
1449 u32 dot11FrameDuplicateCount;
1450 u32 dot11ReceivedFragmentCount;
1451 u32 dot11MulticastReceivedFrameCount;
1452 u32 dot11TransmittedFrameCount;
1454 /* TX/RX handler statistics */
1455 unsigned int tx_handlers_drop;
1456 unsigned int tx_handlers_queued;
1457 unsigned int tx_handlers_drop_wep;
1458 unsigned int tx_handlers_drop_not_assoc;
1459 unsigned int tx_handlers_drop_unauth_port;
1460 unsigned int rx_handlers_drop;
1461 unsigned int rx_handlers_queued;
1462 unsigned int rx_handlers_drop_nullfunc;
1463 unsigned int rx_handlers_drop_defrag;
1464 unsigned int tx_expand_skb_head;
1465 unsigned int tx_expand_skb_head_cloned;
1466 unsigned int rx_expand_skb_head_defrag;
1467 unsigned int rx_handlers_fragments;
1468 unsigned int tx_status_drop;
1469 #define I802_DEBUG_INC(c) (c)++
1470 #else /* CONFIG_MAC80211_DEBUG_COUNTERS */
1471 #define I802_DEBUG_INC(c) do { } while (0)
1472 #endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
1475 int total_ps_buffered; /* total number of all buffered unicast and
1476 * multicast packets for power saving stations
1481 * PS can only be enabled when we have exactly one managed
1482 * interface (and monitors) in PS, this then points there.
1484 struct ieee80211_sub_if_data *ps_sdata;
1485 struct work_struct dynamic_ps_enable_work;
1486 struct work_struct dynamic_ps_disable_work;
1487 struct timer_list dynamic_ps_timer;
1488 struct notifier_block ifa_notifier;
1489 struct notifier_block ifa6_notifier;
1492 * The dynamic ps timeout configured from user space via WEXT -
1493 * this will override whatever chosen by mac80211 internally.
1495 int dynamic_ps_forced_timeout;
1497 int user_power_level; /* in dBm, for all interfaces */
1499 enum ieee80211_smps_mode smps_mode;
1501 struct work_struct restart_work;
1503 #ifdef CONFIG_MAC80211_DEBUGFS
1504 struct local_debugfsdentries {
1505 struct dentry *rcdir;
1506 struct dentry *keys;
1508 bool force_tx_status;
1512 * Remain-on-channel support
1514 struct delayed_work roc_work;
1515 struct list_head roc_list;
1516 struct work_struct hw_roc_start, hw_roc_done;
1517 unsigned long hw_roc_start_time;
1518 u64 roc_cookie_counter;
1520 struct idr ack_status_frames;
1521 spinlock_t ack_status_lock;
1523 struct ieee80211_sub_if_data __rcu *p2p_sdata;
1525 /* virtual monitor interface */
1526 struct ieee80211_sub_if_data __rcu *monitor_sdata;
1527 struct cfg80211_chan_def monitor_chandef;
1529 /* extended capabilities provided by mac80211 */
1533 static inline struct ieee80211_sub_if_data *
1534 IEEE80211_DEV_TO_SUB_IF(const struct net_device *dev)
1536 return netdev_priv(dev);
1539 static inline struct ieee80211_sub_if_data *
1540 IEEE80211_WDEV_TO_SUB_IF(struct wireless_dev *wdev)
1542 return container_of(wdev, struct ieee80211_sub_if_data, wdev);
1545 static inline struct ieee80211_supported_band *
1546 ieee80211_get_sband(struct ieee80211_sub_if_data *sdata)
1548 struct ieee80211_local *local = sdata->local;
1549 struct ieee80211_chanctx_conf *chanctx_conf;
1550 enum nl80211_band band;
1553 chanctx_conf = rcu_dereference(sdata->vif.bss_conf.chanctx_conf);
1555 if (!chanctx_conf) {
1560 band = chanctx_conf->def.chan->band;
1563 return local->hw.wiphy->bands[band];
1566 /* this struct holds the value parsing from channel switch IE */
1567 struct ieee80211_csa_ie {
1568 struct cfg80211_chan_def chandef;
1574 u32 max_switch_time;
1577 /* Parsed Information Elements */
1578 struct ieee802_11_elems {
1583 /* pointers to IEs */
1584 const struct ieee80211_tdls_lnkie *lnk_id;
1585 const struct ieee80211_ch_switch_timing *ch_sw_timing;
1586 const u8 *ext_capab;
1588 const u8 *supp_rates;
1589 const u8 *ds_params;
1590 const struct ieee80211_tim_ie *tim;
1594 const u8 *ext_supp_rates;
1596 const u8 *wmm_param;
1597 const struct ieee80211_ht_cap *ht_cap_elem;
1598 const struct ieee80211_ht_operation *ht_operation;
1599 const struct ieee80211_vht_cap *vht_cap_elem;
1600 const struct ieee80211_vht_operation *vht_operation;
1601 const struct ieee80211_meshconf_ie *mesh_config;
1603 const struct ieee80211_he_operation *he_operation;
1604 const struct ieee80211_he_spr *he_spr;
1605 const struct ieee80211_mu_edca_param_set *mu_edca_param_set;
1606 const struct ieee80211_he_6ghz_capa *he_6ghz_capa;
1607 const struct ieee80211_tx_pwr_env *tx_pwr_env[IEEE80211_TPE_MAX_IE_COUNT];
1608 const u8 *uora_element;
1611 const __le16 *awake_window;
1615 const struct ieee80211_rann_ie *rann;
1616 const struct ieee80211_channel_sw_ie *ch_switch_ie;
1617 const struct ieee80211_ext_chansw_ie *ext_chansw_ie;
1618 const struct ieee80211_wide_bw_chansw_ie *wide_bw_chansw_ie;
1619 const u8 *max_channel_switch_time;
1620 const u8 *country_elem;
1621 const u8 *pwr_constr_elem;
1622 const u8 *cisco_dtpc_elem;
1623 const struct ieee80211_timeout_interval_ie *timeout_int;
1624 const u8 *opmode_notif;
1625 const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
1626 struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
1627 const struct ieee80211_bss_max_idle_period_ie *max_idle_period_ie;
1628 const struct ieee80211_multiple_bssid_configuration *mbssid_config_ie;
1629 const struct ieee80211_bssid_index *bssid_index;
1630 u8 max_bssid_indicator;
1633 const struct ieee80211_addba_ext_ie *addba_ext_ie;
1634 const struct ieee80211_s1g_cap *s1g_capab;
1635 const struct ieee80211_s1g_oper_ie *s1g_oper;
1636 const struct ieee80211_s1g_bcn_compat_ie *s1g_bcn_compat;
1637 const struct ieee80211_aid_response_ie *aid_resp;
1638 const struct ieee80211_eht_cap_elem *eht_cap;
1639 const struct ieee80211_eht_operation *eht_operation;
1641 /* length of them, respectively */
1648 u8 ext_supp_rates_len;
1657 u8 country_elem_len;
1659 u8 tx_pwr_env_len[IEEE80211_TPE_MAX_IE_COUNT];
1663 /* whether a parse error occurred while retrieving these elements */
1667 static inline struct ieee80211_local *hw_to_local(
1668 struct ieee80211_hw *hw)
1670 return container_of(hw, struct ieee80211_local, hw);
1673 static inline struct txq_info *to_txq_info(struct ieee80211_txq *txq)
1675 return container_of(txq, struct txq_info, txq);
1678 static inline bool txq_has_queue(struct ieee80211_txq *txq)
1680 struct txq_info *txqi = to_txq_info(txq);
1682 return !(skb_queue_empty(&txqi->frags) && !txqi->tin.backlog_packets);
1685 static inline struct airtime_info *to_airtime_info(struct ieee80211_txq *txq)
1687 struct ieee80211_sub_if_data *sdata;
1688 struct sta_info *sta;
1691 sta = container_of(txq->sta, struct sta_info, sta);
1692 return &sta->airtime[txq->ac];
1695 sdata = vif_to_sdata(txq->vif);
1696 return &sdata->deflink.airtime[txq->ac];
1699 /* To avoid divisions in the fast path, we keep pre-computed reciprocals for
1700 * airtime weight calculations. There are two different weights to keep track
1701 * of: The per-station weight and the sum of weights per phy.
1703 * For the per-station weights (kept in airtime_info below), we use 32-bit
1704 * reciprocals with a devisor of 2^19. This lets us keep the multiplications and
1705 * divisions for the station weights as 32-bit operations at the cost of a bit
1706 * of rounding error for high weights; but the choice of divisor keeps rounding
1707 * errors <10% for weights <2^15, assuming no more than 8ms of airtime is
1708 * reported at a time.
1710 * For the per-phy sum of weights the values can get higher, so we use 64-bit
1711 * operations for those with a 32-bit divisor, which should avoid any
1712 * significant rounding errors.
1714 #define IEEE80211_RECIPROCAL_DIVISOR_64 0x100000000ULL
1715 #define IEEE80211_RECIPROCAL_SHIFT_64 32
1716 #define IEEE80211_RECIPROCAL_DIVISOR_32 0x80000U
1717 #define IEEE80211_RECIPROCAL_SHIFT_32 19
1719 static inline void airtime_weight_set(struct airtime_info *air_info, u16 weight)
1721 if (air_info->weight == weight)
1724 air_info->weight = weight;
1726 air_info->weight_reciprocal =
1727 IEEE80211_RECIPROCAL_DIVISOR_32 / weight;
1729 air_info->weight_reciprocal = 0;
1733 static inline void airtime_weight_sum_set(struct airtime_sched_info *air_sched,
1736 if (air_sched->weight_sum == weight_sum)
1739 air_sched->weight_sum = weight_sum;
1740 if (air_sched->weight_sum) {
1741 air_sched->weight_sum_reciprocal = IEEE80211_RECIPROCAL_DIVISOR_64;
1742 do_div(air_sched->weight_sum_reciprocal, air_sched->weight_sum);
1744 air_sched->weight_sum_reciprocal = 0;
1748 /* A problem when trying to enforce airtime fairness is that we want to divide
1749 * the airtime between the currently *active* stations. However, basing this on
1750 * the instantaneous queue state of stations doesn't work, as queues tend to
1751 * oscillate very quickly between empty and occupied, leading to the scheduler
1752 * thinking only a single station is active when deciding whether to allow
1753 * transmission (and thus not throttling correctly).
1755 * To fix this we use a timer-based notion of activity: a station is considered
1756 * active if it has been scheduled within the last 100 ms; we keep a separate
1757 * list of all the stations considered active in this manner, and lazily update
1758 * the total weight of active stations from this list (filtering the stations in
1759 * the list by their 'last active' time).
1761 * We add one additional safeguard to guard against stations that manage to get
1762 * scheduled every 100 ms but don't transmit a lot of data, and thus don't use
1763 * up any airtime. Such stations would be able to get priority for an extended
1764 * period of time if they do start transmitting at full capacity again, and so
1765 * we add an explicit maximum for how far behind a station is allowed to fall in
1766 * the virtual airtime domain. This limit is set to a relatively high value of
1767 * 20 ms because the main mechanism for catching up idle stations is the active
1768 * state as described above; i.e., the hard limit should only be hit in
1769 * pathological cases.
1771 #define AIRTIME_ACTIVE_DURATION (100 * NSEC_PER_MSEC)
1772 #define AIRTIME_MAX_BEHIND 20000 /* 20 ms */
1774 static inline bool airtime_is_active(struct airtime_info *air_info, u64 now)
1776 return air_info->last_scheduled >= now - AIRTIME_ACTIVE_DURATION;
1779 static inline void airtime_set_active(struct airtime_sched_info *air_sched,
1780 struct airtime_info *air_info, u64 now)
1782 air_info->last_scheduled = now;
1783 air_sched->last_schedule_activity = now;
1784 list_move_tail(&air_info->list, &air_sched->active_list);
1787 static inline bool airtime_catchup_v_t(struct airtime_sched_info *air_sched,
1790 air_sched->v_t = v_t;
1794 static inline void init_airtime_info(struct airtime_info *air_info,
1795 struct airtime_sched_info *air_sched)
1797 atomic_set(&air_info->aql_tx_pending, 0);
1798 air_info->aql_limit_low = air_sched->aql_txq_limit_low;
1799 air_info->aql_limit_high = air_sched->aql_txq_limit_high;
1800 airtime_weight_set(air_info, IEEE80211_DEFAULT_AIRTIME_WEIGHT);
1801 INIT_LIST_HEAD(&air_info->list);
1805 ieee80211_have_rx_timestamp(struct ieee80211_rx_status *status)
1807 WARN_ON_ONCE(status->flag & RX_FLAG_MACTIME_START &&
1808 status->flag & RX_FLAG_MACTIME_END);
1809 return !!(status->flag & (RX_FLAG_MACTIME_START | RX_FLAG_MACTIME_END |
1810 RX_FLAG_MACTIME_PLCP_START));
1813 void ieee80211_vif_inc_num_mcast(struct ieee80211_sub_if_data *sdata);
1814 void ieee80211_vif_dec_num_mcast(struct ieee80211_sub_if_data *sdata);
1816 /* This function returns the number of multicast stations connected to this
1817 * interface. It returns -1 if that number is not tracked, that is for netdevs
1818 * not in AP or AP_VLAN mode or when using 4addr.
1821 ieee80211_vif_get_num_mcast_if(struct ieee80211_sub_if_data *sdata)
1823 if (sdata->vif.type == NL80211_IFTYPE_AP)
1824 return atomic_read(&sdata->u.ap.num_mcast_sta);
1825 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
1826 return atomic_read(&sdata->u.vlan.num_mcast_sta);
1830 u64 ieee80211_calculate_rx_timestamp(struct ieee80211_local *local,
1831 struct ieee80211_rx_status *status,
1832 unsigned int mpdu_len,
1833 unsigned int mpdu_offset);
1834 int ieee80211_hw_config(struct ieee80211_local *local, u32 changed);
1835 void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
1836 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
1838 void ieee80211_vif_cfg_change_notify(struct ieee80211_sub_if_data *sdata,
1840 void ieee80211_link_info_change_notify(struct ieee80211_sub_if_data *sdata,
1841 int link_id, u64 changed);
1842 void ieee80211_configure_filter(struct ieee80211_local *local);
1843 u32 ieee80211_reset_erp_info(struct ieee80211_sub_if_data *sdata);
1845 u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local);
1846 int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
1847 u64 *cookie, gfp_t gfp);
1849 void ieee80211_check_fast_rx(struct sta_info *sta);
1850 void __ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1851 void ieee80211_check_fast_rx_iface(struct ieee80211_sub_if_data *sdata);
1852 void ieee80211_clear_fast_rx(struct sta_info *sta);
1855 void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata);
1856 int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
1857 struct cfg80211_auth_request *req);
1858 int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
1859 struct cfg80211_assoc_request *req);
1860 int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
1861 struct cfg80211_deauth_request *req);
1862 int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
1863 struct cfg80211_disassoc_request *req);
1864 void ieee80211_send_pspoll(struct ieee80211_local *local,
1865 struct ieee80211_sub_if_data *sdata);
1866 void ieee80211_recalc_ps(struct ieee80211_local *local);
1867 void ieee80211_recalc_ps_vif(struct ieee80211_sub_if_data *sdata);
1868 int ieee80211_set_arp_filter(struct ieee80211_sub_if_data *sdata);
1869 void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata);
1870 void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1871 struct sk_buff *skb);
1872 void ieee80211_sta_rx_queued_ext(struct ieee80211_sub_if_data *sdata,
1873 struct sk_buff *skb);
1874 void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata);
1875 void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
1876 void ieee80211_mgd_stop(struct ieee80211_sub_if_data *sdata);
1877 void ieee80211_mgd_conn_tx_status(struct ieee80211_sub_if_data *sdata,
1878 __le16 fc, bool acked);
1879 void ieee80211_mgd_quiesce(struct ieee80211_sub_if_data *sdata);
1880 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
1881 void ieee80211_sta_handle_tspec_ac_params(struct ieee80211_sub_if_data *sdata);
1882 void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
1883 u8 reason, bool tx);
1886 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
1887 void ieee80211_ibss_setup_sdata(struct ieee80211_sub_if_data *sdata);
1888 void ieee80211_ibss_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1889 const u8 *bssid, const u8 *addr, u32 supp_rates);
1890 int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
1891 struct cfg80211_ibss_params *params);
1892 int ieee80211_ibss_leave(struct ieee80211_sub_if_data *sdata);
1893 void ieee80211_ibss_work(struct ieee80211_sub_if_data *sdata);
1894 void ieee80211_ibss_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1895 struct sk_buff *skb);
1896 int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
1897 struct cfg80211_csa_settings *csa_settings);
1898 int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata);
1899 void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
1902 void ieee80211_ocb_work(struct ieee80211_sub_if_data *sdata);
1903 void ieee80211_ocb_rx_no_sta(struct ieee80211_sub_if_data *sdata,
1904 const u8 *bssid, const u8 *addr, u32 supp_rates);
1905 void ieee80211_ocb_setup_sdata(struct ieee80211_sub_if_data *sdata);
1906 int ieee80211_ocb_join(struct ieee80211_sub_if_data *sdata,
1907 struct ocb_setup *setup);
1908 int ieee80211_ocb_leave(struct ieee80211_sub_if_data *sdata);
1911 void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
1912 void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
1913 struct sk_buff *skb);
1914 int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
1915 struct cfg80211_csa_settings *csa_settings);
1916 int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
1918 /* scan/BSS handling */
1919 void ieee80211_scan_work(struct work_struct *work);
1920 int ieee80211_request_ibss_scan(struct ieee80211_sub_if_data *sdata,
1921 const u8 *ssid, u8 ssid_len,
1922 struct ieee80211_channel **channels,
1923 unsigned int n_channels,
1924 enum nl80211_bss_scan_width scan_width);
1925 int ieee80211_request_scan(struct ieee80211_sub_if_data *sdata,
1926 struct cfg80211_scan_request *req);
1927 void ieee80211_scan_cancel(struct ieee80211_local *local);
1928 void ieee80211_run_deferred_scan(struct ieee80211_local *local);
1929 void ieee80211_scan_rx(struct ieee80211_local *local, struct sk_buff *skb);
1931 void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local);
1932 struct ieee80211_bss *
1933 ieee80211_bss_info_update(struct ieee80211_local *local,
1934 struct ieee80211_rx_status *rx_status,
1935 struct ieee80211_mgmt *mgmt,
1937 struct ieee80211_channel *channel);
1938 void ieee80211_rx_bss_put(struct ieee80211_local *local,
1939 struct ieee80211_bss *bss);
1941 /* scheduled scan handling */
1943 __ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1944 struct cfg80211_sched_scan_request *req);
1945 int ieee80211_request_sched_scan_start(struct ieee80211_sub_if_data *sdata,
1946 struct cfg80211_sched_scan_request *req);
1947 int ieee80211_request_sched_scan_stop(struct ieee80211_local *local);
1948 void ieee80211_sched_scan_end(struct ieee80211_local *local);
1949 void ieee80211_sched_scan_stopped_work(struct work_struct *work);
1951 /* off-channel/mgmt-tx */
1952 void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local);
1953 void ieee80211_offchannel_return(struct ieee80211_local *local);
1954 void ieee80211_roc_setup(struct ieee80211_local *local);
1955 void ieee80211_start_next_roc(struct ieee80211_local *local);
1956 void ieee80211_roc_purge(struct ieee80211_local *local,
1957 struct ieee80211_sub_if_data *sdata);
1958 int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev,
1959 struct ieee80211_channel *chan,
1960 unsigned int duration, u64 *cookie);
1961 int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1962 struct wireless_dev *wdev, u64 cookie);
1963 int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
1964 struct cfg80211_mgmt_tx_params *params, u64 *cookie);
1965 int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1966 struct wireless_dev *wdev, u64 cookie);
1968 /* channel switch handling */
1969 void ieee80211_csa_finalize_work(struct work_struct *work);
1970 int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
1971 struct cfg80211_csa_settings *params);
1973 /* color change handling */
1974 void ieee80211_color_change_finalize_work(struct work_struct *work);
1976 /* interface handling */
1977 #define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
1978 NETIF_F_HW_CSUM | NETIF_F_SG | \
1979 NETIF_F_HIGHDMA | NETIF_F_GSO_SOFTWARE)
1980 #define MAC80211_SUPPORTED_FEATURES_RX (NETIF_F_RXCSUM)
1981 #define MAC80211_SUPPORTED_FEATURES (MAC80211_SUPPORTED_FEATURES_TX | \
1982 MAC80211_SUPPORTED_FEATURES_RX)
1984 int ieee80211_iface_init(void);
1985 void ieee80211_iface_exit(void);
1986 int ieee80211_if_add(struct ieee80211_local *local, const char *name,
1987 unsigned char name_assign_type,
1988 struct wireless_dev **new_wdev, enum nl80211_iftype type,
1989 struct vif_params *params);
1990 int ieee80211_if_change_type(struct ieee80211_sub_if_data *sdata,
1991 enum nl80211_iftype type);
1992 void ieee80211_if_remove(struct ieee80211_sub_if_data *sdata);
1993 void ieee80211_remove_interfaces(struct ieee80211_local *local);
1994 u32 ieee80211_idle_off(struct ieee80211_local *local);
1995 void ieee80211_recalc_idle(struct ieee80211_local *local);
1996 void ieee80211_adjust_monitor_flags(struct ieee80211_sub_if_data *sdata,
1998 int ieee80211_do_open(struct wireless_dev *wdev, bool coming_up);
1999 void ieee80211_sdata_stop(struct ieee80211_sub_if_data *sdata);
2000 int ieee80211_add_virtual_monitor(struct ieee80211_local *local);
2001 void ieee80211_del_virtual_monitor(struct ieee80211_local *local);
2003 int ieee80211_vif_set_links(struct ieee80211_sub_if_data *sdata,
2006 bool __ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata);
2007 void ieee80211_recalc_txpower(struct ieee80211_sub_if_data *sdata,
2009 void ieee80211_recalc_offload(struct ieee80211_local *local);
2011 static inline bool ieee80211_sdata_running(struct ieee80211_sub_if_data *sdata)
2013 return test_bit(SDATA_STATE_RUNNING, &sdata->state);
2017 void ieee80211_clear_tx_pending(struct ieee80211_local *local);
2018 void ieee80211_tx_pending(struct tasklet_struct *t);
2019 netdev_tx_t ieee80211_monitor_start_xmit(struct sk_buff *skb,
2020 struct net_device *dev);
2021 netdev_tx_t ieee80211_subif_start_xmit(struct sk_buff *skb,
2022 struct net_device *dev);
2023 netdev_tx_t ieee80211_subif_start_xmit_8023(struct sk_buff *skb,
2024 struct net_device *dev);
2025 void __ieee80211_subif_start_xmit(struct sk_buff *skb,
2026 struct net_device *dev,
2030 void ieee80211_purge_tx_queue(struct ieee80211_hw *hw,
2031 struct sk_buff_head *skbs);
2033 ieee80211_build_data_template(struct ieee80211_sub_if_data *sdata,
2034 struct sk_buff *skb, u32 info_flags);
2035 void ieee80211_tx_monitor(struct ieee80211_local *local, struct sk_buff *skb,
2036 int retry_count, int shift, bool send_to_cooked,
2037 struct ieee80211_tx_status *status);
2039 void ieee80211_check_fast_xmit(struct sta_info *sta);
2040 void ieee80211_check_fast_xmit_all(struct ieee80211_local *local);
2041 void ieee80211_check_fast_xmit_iface(struct ieee80211_sub_if_data *sdata);
2042 void ieee80211_clear_fast_xmit(struct sta_info *sta);
2043 int ieee80211_tx_control_port(struct wiphy *wiphy, struct net_device *dev,
2044 const u8 *buf, size_t len,
2045 const u8 *dest, __be16 proto, bool unencrypted,
2047 int ieee80211_probe_mesh_link(struct wiphy *wiphy, struct net_device *dev,
2048 const u8 *buf, size_t len);
2049 void ieee80211_resort_txq(struct ieee80211_hw *hw,
2050 struct ieee80211_txq *txq);
2051 void ieee80211_unschedule_txq(struct ieee80211_hw *hw,
2052 struct ieee80211_txq *txq,
2054 void ieee80211_update_airtime_weight(struct ieee80211_local *local,
2055 struct airtime_sched_info *air_sched,
2056 u64 now, bool force);
2059 void ieee80211_apply_htcap_overrides(struct ieee80211_sub_if_data *sdata,
2060 struct ieee80211_sta_ht_cap *ht_cap);
2061 bool ieee80211_ht_cap_ie_to_sta_ht_cap(struct ieee80211_sub_if_data *sdata,
2062 struct ieee80211_supported_band *sband,
2063 const struct ieee80211_ht_cap *ht_cap_ie,
2064 struct sta_info *sta, unsigned int link_id);
2065 void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
2066 const u8 *da, u16 tid,
2067 u16 initiator, u16 reason_code);
2068 int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
2069 enum ieee80211_smps_mode smps, const u8 *da,
2071 void ieee80211_request_smps_ap_work(struct work_struct *work);
2072 void ieee80211_request_smps_mgd_work(struct work_struct *work);
2073 bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
2074 enum ieee80211_smps_mode smps_mode_new);
2076 void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
2077 u16 initiator, u16 reason, bool stop);
2078 void __ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
2079 u16 initiator, u16 reason, bool stop);
2080 void ___ieee80211_start_rx_ba_session(struct sta_info *sta,
2081 u8 dialog_token, u16 timeout,
2082 u16 start_seq_num, u16 ba_policy, u16 tid,
2083 u16 buf_size, bool tx, bool auto_seq,
2084 const struct ieee80211_addba_ext_ie *addbaext);
2085 void ieee80211_sta_tear_down_BA_sessions(struct sta_info *sta,
2086 enum ieee80211_agg_stop_reason reason);
2087 void ieee80211_process_delba(struct ieee80211_sub_if_data *sdata,
2088 struct sta_info *sta,
2089 struct ieee80211_mgmt *mgmt, size_t len);
2090 void ieee80211_process_addba_resp(struct ieee80211_local *local,
2091 struct sta_info *sta,
2092 struct ieee80211_mgmt *mgmt,
2094 void ieee80211_process_addba_request(struct ieee80211_local *local,
2095 struct sta_info *sta,
2096 struct ieee80211_mgmt *mgmt,
2099 int __ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2100 enum ieee80211_agg_stop_reason reason);
2101 int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid,
2102 enum ieee80211_agg_stop_reason reason);
2103 void ieee80211_start_tx_ba_cb(struct sta_info *sta, int tid,
2104 struct tid_ampdu_tx *tid_tx);
2105 void ieee80211_stop_tx_ba_cb(struct sta_info *sta, int tid,
2106 struct tid_ampdu_tx *tid_tx);
2107 void ieee80211_ba_session_work(struct work_struct *work);
2108 void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid);
2109 void ieee80211_release_reorder_timeout(struct sta_info *sta, int tid);
2111 u8 ieee80211_mcs_to_chains(const struct ieee80211_mcs_info *mcs);
2112 enum nl80211_smps_mode
2113 ieee80211_smps_mode_to_smps_mode(enum ieee80211_smps_mode smps);
2117 ieee80211_vht_cap_ie_to_sta_vht_cap(struct ieee80211_sub_if_data *sdata,
2118 struct ieee80211_supported_band *sband,
2119 const struct ieee80211_vht_cap *vht_cap_ie,
2120 struct sta_info *sta, unsigned int link_id);
2121 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cap_rx_bw(struct sta_info *sta,
2122 unsigned int link_id);
2123 enum ieee80211_sta_rx_bandwidth ieee80211_sta_cur_vht_bw(struct sta_info *sta,
2124 unsigned int link_id);
2125 void ieee80211_sta_set_rx_nss(struct sta_info *sta, unsigned int link_id);
2126 enum ieee80211_sta_rx_bandwidth
2127 ieee80211_chan_width_to_rx_bw(enum nl80211_chan_width width);
2128 enum nl80211_chan_width ieee80211_sta_cap_chan_bw(struct sta_info *sta,
2129 unsigned int link_id);
2130 void ieee80211_process_mu_groups(struct ieee80211_sub_if_data *sdata,
2131 unsigned int link_id,
2132 struct ieee80211_mgmt *mgmt);
2133 u32 __ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2134 struct sta_info *sta, unsigned int link_id,
2135 u8 opmode, enum nl80211_band band);
2136 void ieee80211_vht_handle_opmode(struct ieee80211_sub_if_data *sdata,
2137 struct sta_info *sta, unsigned int link_id,
2138 u8 opmode, enum nl80211_band band);
2139 void ieee80211_apply_vhtcap_overrides(struct ieee80211_sub_if_data *sdata,
2140 struct ieee80211_sta_vht_cap *vht_cap);
2141 void ieee80211_get_vht_mask_from_cap(__le16 vht_cap,
2142 u16 vht_mask[NL80211_VHT_NSS_MAX]);
2143 enum nl80211_chan_width
2144 ieee80211_sta_rx_bw_to_chan_width(struct sta_info *sta, unsigned int link_id);
2148 ieee80211_he_cap_ie_to_sta_he_cap(struct ieee80211_sub_if_data *sdata,
2149 struct ieee80211_supported_band *sband,
2150 const u8 *he_cap_ie, u8 he_cap_len,
2151 const struct ieee80211_he_6ghz_capa *he_6ghz_capa,
2152 struct sta_info *sta, unsigned int link_id);
2154 ieee80211_he_spr_ie_to_bss_conf(struct ieee80211_vif *vif,
2155 const struct ieee80211_he_spr *he_spr_ie_elem);
2158 ieee80211_he_op_ie_to_bss_conf(struct ieee80211_vif *vif,
2159 const struct ieee80211_he_operation *he_op_ie_elem);
2162 void ieee80211_s1g_sta_rate_init(struct sta_info *sta);
2163 bool ieee80211_s1g_is_twt_setup(struct sk_buff *skb);
2164 void ieee80211_s1g_rx_twt_action(struct ieee80211_sub_if_data *sdata,
2165 struct sk_buff *skb);
2166 void ieee80211_s1g_status_twt_action(struct ieee80211_sub_if_data *sdata,
2167 struct sk_buff *skb);
2169 /* Spectrum management */
2170 void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
2171 struct ieee80211_mgmt *mgmt,
2174 * ieee80211_parse_ch_switch_ie - parses channel switch IEs
2175 * @sdata: the sdata of the interface which has received the frame
2176 * @elems: parsed 802.11 elements received with the frame
2177 * @current_band: indicates the current band
2178 * @vht_cap_info: VHT capabilities of the transmitter
2179 * @sta_flags: contains information about own capabilities and restrictions
2180 * to decide which channel switch announcements can be accepted. Only the
2181 * following subset of &enum ieee80211_sta_flags are evaluated:
2182 * %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
2183 * %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
2184 * %IEEE80211_STA_DISABLE_160MHZ.
2185 * @bssid: the currently connected bssid (for reporting)
2186 * @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
2187 All of them will be filled with if success only.
2188 * Return: 0 on success, <0 on error and >0 if there is nothing to parse.
2190 int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
2191 struct ieee802_11_elems *elems,
2192 enum nl80211_band current_band,
2194 u32 sta_flags, u8 *bssid,
2195 struct ieee80211_csa_ie *csa_ie);
2197 /* Suspend/resume and hw reconfiguration */
2198 int ieee80211_reconfig(struct ieee80211_local *local);
2199 void ieee80211_stop_device(struct ieee80211_local *local);
2201 int __ieee80211_suspend(struct ieee80211_hw *hw,
2202 struct cfg80211_wowlan *wowlan);
2204 static inline int __ieee80211_resume(struct ieee80211_hw *hw)
2206 struct ieee80211_local *local = hw_to_local(hw);
2208 WARN(test_bit(SCAN_HW_SCANNING, &local->scanning) &&
2209 !test_bit(SCAN_COMPLETED, &local->scanning),
2210 "%s: resume with hardware scan still in progress\n",
2211 wiphy_name(hw->wiphy));
2213 return ieee80211_reconfig(hw_to_local(hw));
2216 /* utility functions/constants */
2217 extern const void *const mac80211_wiphy_privid; /* for wiphy privid */
2218 int ieee80211_frame_duration(enum nl80211_band band, size_t len,
2219 int rate, int erp, int short_preamble,
2221 void ieee80211_regulatory_limit_wmm_params(struct ieee80211_sub_if_data *sdata,
2222 struct ieee80211_tx_queue_params *qparam,
2224 void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata,
2225 bool bss_notify, bool enable_qos);
2226 void ieee80211_xmit(struct ieee80211_sub_if_data *sdata,
2227 struct sta_info *sta, struct sk_buff *skb);
2229 void __ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2230 struct sk_buff *skb, int tid,
2231 enum nl80211_band band);
2233 /* sta_out needs to be checked for ERR_PTR() before using */
2234 int ieee80211_lookup_ra_sta(struct ieee80211_sub_if_data *sdata,
2235 struct sk_buff *skb,
2236 struct sta_info **sta_out);
2239 ieee80211_tx_skb_tid_band(struct ieee80211_sub_if_data *sdata,
2240 struct sk_buff *skb, int tid,
2241 enum nl80211_band band)
2244 __ieee80211_tx_skb_tid_band(sdata, skb, tid, band);
2248 void ieee80211_tx_skb_tid(struct ieee80211_sub_if_data *sdata,
2249 struct sk_buff *skb, int tid);
2251 static inline void ieee80211_tx_skb(struct ieee80211_sub_if_data *sdata,
2252 struct sk_buff *skb)
2254 /* Send all internal mgmt frames on VO. Accordingly set TID to 7. */
2255 ieee80211_tx_skb_tid(sdata, skb, 7);
2258 struct ieee802_11_elems *ieee802_11_parse_elems_crc(const u8 *start, size_t len,
2260 u64 filter, u32 crc,
2261 const u8 *transmitter_bssid,
2262 const u8 *bss_bssid);
2263 static inline struct ieee802_11_elems *
2264 ieee802_11_parse_elems(const u8 *start, size_t len, bool action,
2265 const u8 *transmitter_bssid,
2266 const u8 *bss_bssid)
2268 return ieee802_11_parse_elems_crc(start, len, action, 0, 0,
2269 transmitter_bssid, bss_bssid);
2273 extern const int ieee802_1d_to_ac[8];
2275 static inline int ieee80211_ac_from_tid(int tid)
2277 return ieee802_1d_to_ac[tid & 7];
2280 void ieee80211_dynamic_ps_enable_work(struct work_struct *work);
2281 void ieee80211_dynamic_ps_disable_work(struct work_struct *work);
2282 void ieee80211_dynamic_ps_timer(struct timer_list *t);
2283 void ieee80211_send_nullfunc(struct ieee80211_local *local,
2284 struct ieee80211_sub_if_data *sdata,
2286 void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
2287 struct ieee80211_sub_if_data *sdata);
2288 void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
2289 struct ieee80211_hdr *hdr, bool ack, u16 tx_time);
2291 void ieee80211_wake_queues_by_reason(struct ieee80211_hw *hw,
2292 unsigned long queues,
2293 enum queue_stop_reason reason,
2295 void ieee80211_stop_vif_queues(struct ieee80211_local *local,
2296 struct ieee80211_sub_if_data *sdata,
2297 enum queue_stop_reason reason);
2298 void ieee80211_wake_vif_queues(struct ieee80211_local *local,
2299 struct ieee80211_sub_if_data *sdata,
2300 enum queue_stop_reason reason);
2301 void ieee80211_stop_queues_by_reason(struct ieee80211_hw *hw,
2302 unsigned long queues,
2303 enum queue_stop_reason reason,
2305 void ieee80211_wake_queue_by_reason(struct ieee80211_hw *hw, int queue,
2306 enum queue_stop_reason reason,
2308 void ieee80211_stop_queue_by_reason(struct ieee80211_hw *hw, int queue,
2309 enum queue_stop_reason reason,
2311 void ieee80211_propagate_queue_wake(struct ieee80211_local *local, int queue);
2312 void ieee80211_add_pending_skb(struct ieee80211_local *local,
2313 struct sk_buff *skb);
2314 void ieee80211_add_pending_skbs(struct ieee80211_local *local,
2315 struct sk_buff_head *skbs);
2316 void ieee80211_flush_queues(struct ieee80211_local *local,
2317 struct ieee80211_sub_if_data *sdata, bool drop);
2318 void __ieee80211_flush_queues(struct ieee80211_local *local,
2319 struct ieee80211_sub_if_data *sdata,
2320 unsigned int queues, bool drop);
2322 static inline bool ieee80211_can_run_worker(struct ieee80211_local *local)
2325 * It's unsafe to try to do any work during reconfigure flow.
2326 * When the flow ends the work will be requeued.
2328 if (local->in_reconfig)
2332 * If quiescing is set, we are racing with __ieee80211_suspend.
2333 * __ieee80211_suspend flushes the workers after setting quiescing,
2334 * and we check quiescing / suspended before enqueing new workers.
2335 * We should abort the worker to avoid the races below.
2337 if (local->quiescing)
2341 * We might already be suspended if the following scenario occurs:
2342 * __ieee80211_suspend Control path
2344 * if (local->quiescing)
2346 * local->quiescing = true;
2347 * flush_workqueue();
2349 * local->suspended = true;
2350 * local->quiescing = false;
2351 * worker starts running...
2353 if (local->suspended)
2359 int ieee80211_txq_setup_flows(struct ieee80211_local *local);
2360 void ieee80211_txq_set_params(struct ieee80211_local *local);
2361 void ieee80211_txq_teardown_flows(struct ieee80211_local *local);
2362 void ieee80211_txq_init(struct ieee80211_sub_if_data *sdata,
2363 struct sta_info *sta,
2364 struct txq_info *txq, int tid);
2365 void ieee80211_txq_purge(struct ieee80211_local *local,
2366 struct txq_info *txqi);
2367 void ieee80211_txq_remove_vlan(struct ieee80211_local *local,
2368 struct ieee80211_sub_if_data *sdata);
2369 void ieee80211_fill_txq_stats(struct cfg80211_txq_stats *txqstats,
2370 struct txq_info *txqi);
2371 void ieee80211_wake_txqs(struct tasklet_struct *t);
2372 void ieee80211_send_auth(struct ieee80211_sub_if_data *sdata,
2373 u16 transaction, u16 auth_alg, u16 status,
2374 const u8 *extra, size_t extra_len, const u8 *bssid,
2375 const u8 *da, const u8 *key, u8 key_len, u8 key_idx,
2377 void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
2378 const u8 *da, const u8 *bssid,
2379 u16 stype, u16 reason,
2380 bool send_frame, u8 *frame_buf);
2383 IEEE80211_PROBE_FLAG_DIRECTED = BIT(0),
2384 IEEE80211_PROBE_FLAG_MIN_CONTENT = BIT(1),
2385 IEEE80211_PROBE_FLAG_RANDOM_SN = BIT(2),
2388 int ieee80211_build_preq_ies(struct ieee80211_sub_if_data *sdata, u8 *buffer,
2390 struct ieee80211_scan_ies *ie_desc,
2391 const u8 *ie, size_t ie_len,
2392 u8 bands_used, u32 *rate_masks,
2393 struct cfg80211_chan_def *chandef,
2395 struct sk_buff *ieee80211_build_probe_req(struct ieee80211_sub_if_data *sdata,
2396 const u8 *src, const u8 *dst,
2398 struct ieee80211_channel *chan,
2399 const u8 *ssid, size_t ssid_len,
2400 const u8 *ie, size_t ie_len,
2402 u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
2403 struct ieee802_11_elems *elems,
2404 enum nl80211_band band, u32 *basic_rates);
2405 int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2406 unsigned int link_id,
2407 enum ieee80211_smps_mode smps_mode);
2408 void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata,
2409 unsigned int link_id);
2410 void ieee80211_recalc_min_chandef(struct ieee80211_sub_if_data *sdata);
2412 size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
2413 u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2415 u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap,
2416 const struct cfg80211_chan_def *chandef,
2417 u16 prot_mode, bool rifs_mode);
2418 void ieee80211_ie_build_wide_bw_cs(u8 *pos,
2419 const struct cfg80211_chan_def *chandef);
2420 u8 *ieee80211_ie_build_vht_cap(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2422 u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
2423 const struct cfg80211_chan_def *chandef);
2424 u8 ieee80211_ie_len_he_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
2425 u8 *ieee80211_ie_build_he_cap(u32 disable_flags, u8 *pos,
2426 const struct ieee80211_sta_he_cap *he_cap,
2428 void ieee80211_ie_build_he_6ghz_cap(struct ieee80211_sub_if_data *sdata,
2429 struct sk_buff *skb);
2430 u8 *ieee80211_ie_build_he_oper(u8 *pos, struct cfg80211_chan_def *chandef);
2431 int ieee80211_parse_bitrates(struct cfg80211_chan_def *chandef,
2432 const struct ieee80211_supported_band *sband,
2433 const u8 *srates, int srates_len, u32 *rates);
2434 int ieee80211_add_srates_ie(struct ieee80211_sub_if_data *sdata,
2435 struct sk_buff *skb, bool need_basic,
2436 enum nl80211_band band);
2437 int ieee80211_add_ext_srates_ie(struct ieee80211_sub_if_data *sdata,
2438 struct sk_buff *skb, bool need_basic,
2439 enum nl80211_band band);
2440 u8 *ieee80211_add_wmm_info_ie(u8 *buf, u8 qosinfo);
2441 void ieee80211_add_s1g_capab_ie(struct ieee80211_sub_if_data *sdata,
2442 struct ieee80211_sta_s1g_cap *caps,
2443 struct sk_buff *skb);
2444 void ieee80211_add_aid_request_ie(struct ieee80211_sub_if_data *sdata,
2445 struct sk_buff *skb);
2447 /* channel management */
2448 bool ieee80211_chandef_ht_oper(const struct ieee80211_ht_operation *ht_oper,
2449 struct cfg80211_chan_def *chandef);
2450 bool ieee80211_chandef_vht_oper(struct ieee80211_hw *hw, u32 vht_cap_info,
2451 const struct ieee80211_vht_operation *oper,
2452 const struct ieee80211_ht_operation *htop,
2453 struct cfg80211_chan_def *chandef);
2454 bool ieee80211_chandef_he_6ghz_oper(struct ieee80211_sub_if_data *sdata,
2455 const struct ieee80211_he_operation *he_oper,
2456 const struct ieee80211_eht_operation *eht_oper,
2457 struct cfg80211_chan_def *chandef);
2458 bool ieee80211_chandef_s1g_oper(const struct ieee80211_s1g_oper_ie *oper,
2459 struct cfg80211_chan_def *chandef);
2460 u32 ieee80211_chandef_downgrade(struct cfg80211_chan_def *c);
2463 ieee80211_link_use_channel(struct ieee80211_link_data *link,
2464 const struct cfg80211_chan_def *chandef,
2465 enum ieee80211_chanctx_mode mode);
2467 ieee80211_link_reserve_chanctx(struct ieee80211_link_data *link,
2468 const struct cfg80211_chan_def *chandef,
2469 enum ieee80211_chanctx_mode mode,
2470 bool radar_required);
2472 ieee80211_link_use_reserved_context(struct ieee80211_link_data *link);
2473 int ieee80211_link_unreserve_chanctx(struct ieee80211_link_data *link);
2476 ieee80211_link_change_bandwidth(struct ieee80211_link_data *link,
2477 const struct cfg80211_chan_def *chandef,
2479 void ieee80211_link_release_channel(struct ieee80211_link_data *link);
2480 void ieee80211_link_vlan_copy_chanctx(struct ieee80211_link_data *link);
2481 void ieee80211_link_copy_chanctx_to_vlans(struct ieee80211_link_data *link,
2483 int ieee80211_chanctx_refcount(struct ieee80211_local *local,
2484 struct ieee80211_chanctx *ctx);
2486 void ieee80211_recalc_smps_chanctx(struct ieee80211_local *local,
2487 struct ieee80211_chanctx *chanctx);
2488 void ieee80211_recalc_chanctx_min_def(struct ieee80211_local *local,
2489 struct ieee80211_chanctx *ctx);
2490 bool ieee80211_is_radar_required(struct ieee80211_local *local);
2492 void ieee80211_dfs_cac_timer(unsigned long data);
2493 void ieee80211_dfs_cac_timer_work(struct work_struct *work);
2494 void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
2495 void ieee80211_dfs_radar_detected_work(struct work_struct *work);
2496 int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
2497 struct cfg80211_csa_settings *csa_settings);
2499 void ieee80211_recalc_dtim(struct ieee80211_local *local,
2500 struct ieee80211_sub_if_data *sdata);
2501 int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata,
2502 const struct cfg80211_chan_def *chandef,
2503 enum ieee80211_chanctx_mode chanmode,
2505 int ieee80211_max_num_channels(struct ieee80211_local *local);
2506 void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local,
2507 struct ieee80211_chanctx *ctx);
2510 int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2511 const u8 *peer, u8 action_code, u8 dialog_token,
2512 u16 status_code, u32 peer_capability,
2513 bool initiator, const u8 *extra_ies,
2514 size_t extra_ies_len);
2515 int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2516 const u8 *peer, enum nl80211_tdls_operation oper);
2517 void ieee80211_tdls_peer_del_work(struct work_struct *wk);
2518 int ieee80211_tdls_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2519 const u8 *addr, u8 oper_class,
2520 struct cfg80211_chan_def *chandef);
2521 void ieee80211_tdls_cancel_channel_switch(struct wiphy *wiphy,
2522 struct net_device *dev,
2524 void ieee80211_teardown_tdls_peers(struct ieee80211_sub_if_data *sdata);
2525 void ieee80211_tdls_handle_disconnect(struct ieee80211_sub_if_data *sdata,
2526 const u8 *peer, u16 reason);
2528 ieee80211_process_tdls_channel_switch(struct ieee80211_sub_if_data *sdata,
2529 struct sk_buff *skb);
2532 const char *ieee80211_get_reason_code_string(u16 reason_code);
2533 u16 ieee80211_encode_usf(int val);
2534 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
2535 enum nl80211_iftype type);
2537 extern const struct ethtool_ops ieee80211_ethtool_ops;
2539 u32 ieee80211_calc_expected_tx_airtime(struct ieee80211_hw *hw,
2540 struct ieee80211_vif *vif,
2541 struct ieee80211_sta *pubsta,
2542 int len, bool ampdu);
2543 #ifdef CONFIG_MAC80211_NOINLINE
2544 #define debug_noinline noinline
2546 #define debug_noinline
2549 void ieee80211_init_frag_cache(struct ieee80211_fragment_cache *cache);
2550 void ieee80211_destroy_frag_cache(struct ieee80211_fragment_cache *cache);
2552 u8 ieee80211_ie_len_eht_cap(struct ieee80211_sub_if_data *sdata, u8 iftype);
2553 u8 *ieee80211_ie_build_eht_cap(u8 *pos,
2554 const struct ieee80211_sta_he_cap *he_cap,
2555 const struct ieee80211_sta_eht_cap *eht_cap,
2559 ieee80211_eht_cap_ie_to_sta_eht_cap(struct ieee80211_sub_if_data *sdata,
2560 struct ieee80211_supported_band *sband,
2561 const u8 *he_cap_ie, u8 he_cap_len,
2562 const struct ieee80211_eht_cap_elem *eht_cap_ie_elem,
2563 u8 eht_cap_len, struct sta_info *sta,
2564 unsigned int link_id);
2565 #endif /* IEEE80211_I_H */