1 /* SPDX-License-Identifier: GPL-2.0-only */
3  * mac80211 <-> driver interface
5  * Copyright 2002-2005, Devicescape Software, Inc.
6  * Copyright 2006-2007	Jiri Benc <[email protected]>
7  * Copyright 2007-2010	Johannes Berg <[email protected]>
8  * Copyright 2013-2014  Intel Mobile Communications GmbH
9  * Copyright (C) 2015 - 2017 Intel Deutschland GmbH
10  * Copyright (C) 2018 - 2024 Intel Corporation
31  * only partial functionality in hard- or firmware. This document
32  * defines the interface between mac80211 and low-level hardware
40  * called in hardware interrupt context. The low-level driver must not call any
42  * call, the low-level driver should first ACK the interrupt and perform the
47  *	 use the non-IRQ-safe functions!
100  * Intermediate queues (struct ieee80211_txq) are kept per-sta per-tid, with
101  * another per-sta for non-data/non-mgmt and bufferable management frames, and
102  * a single per-vif queue for multicast data frames.
104  * The driver is expected to initialize its private per-queue data for stations
149  * enum ieee80211_max_queues - maximum number of queues
156 	IEEE80211_MAX_QUEUE_MAP =	BIT(IEEE80211_MAX_QUEUES) - 1,
162  * enum ieee80211_ac_numbers - AC numbers as used in mac80211
176  * struct ieee80211_tx_queue_params - transmit queue configuration
183  *	2^n-1 in the range 1..32767]
185  * @txop: maximum burst time in units of 32 usecs, 0 meaning disabled
187  * @uapsd: is U-APSD mode enabled for the queue
210  * enum ieee80211_chanctx_change - change flag for channel context
233  * struct ieee80211_chan_req - A channel "request"
244  * struct ieee80211_chanctx_conf - channel context that vifs may be tuned to
246  * This is the driver-visible part. The ieee80211_chanctx
277  * enum ieee80211_chanctx_switch_mode - channel context switch mode
285  *      implement this as an on-the-fly chandef switch of the existing
296  * struct ieee80211_vif_chanctx_switch - vif chanctx switch information
316  * enum ieee80211_bss_change - BSS change notification flags
343  * @BSS_CHANGED_PS: PS changed for this BSS (STA mode)
345  * @BSS_CHANGED_P2P_PS: P2P powersave settings (CTWindow, opportunistic PS)
353  * @BSS_CHANGED_MU_GROUPS: VHT MU-MIMO group id or user position changed
417  * enum ieee80211_event_type - event to be notified to the low level driver
423  *	once each time the timeout triggers.
433  * enum ieee80211_rssi_event_data - relevant when event type is %RSSI_EVENT
443  * struct ieee80211_rssi_event - data attached to an %RSSI_EVENT
451  * enum ieee80211_mlme_event_data - relevant when event type is %MLME_EVENT
465  * enum ieee80211_mlme_event_status - relevant when event type is %MLME_EVENT
477  * struct ieee80211_mlme_event - data attached to an %MLME_EVENT
489  * struct ieee80211_ba_event - data attached for BlockAck related events
501  * struct ieee80211_event - event to be sent to the driver
518  * struct ieee80211_mu_group_data - STA's VHT MU-MIMO group data
520  * This structure describes the group id data of VHT MU-MIMO
522  * @membership: 64 bits array - a bit is set if station is member of the group
531  * struct ieee80211_ftm_responder_params - FTM responder parameters
546  * struct ieee80211_fils_discovery - FILS discovery parameters from
547  * IEEE Std 802.11ai-2016, Annex C.3 MIB detail.
549  * @min_interval: Minimum packet interval in TUs (0 - 10000)
550  * @max_interval: Maximum packet interval in TUs (0 - 10000)
572  * struct ieee80211_parsed_tpe - parsed transmit power envelope information
591  * struct ieee80211_bss_conf - holds the BSS's changing parameters
602  * @link_id: link ID, or 0 for non-MLO
616  * @use_short_slot: use short slot time (only relevant for ERP)
619  *	with the %BSS_CHANGED_BEACON_INFO flag, will be non-zero then.
632  *	by the time the driver will use them. The synchronized view is currently
642  * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
645  * @chanreq: Channel request for this BSS -- the hardware might be
647  * @mu_group: VHT MU-MIMO group membership data
661  * @qos: This is a QoS-enabled BSS.
662  * @hidden_ssid: The SSID of the current vif is hidden. Only valid in AP-mode.
672  *	to use P2P PS mechanism or not. AP/P2P GO is not allowed to use P2P PS
673  *	if it has associated clients without P2P PS support.
674  * @max_idle_period: the time period during which the station can refrain from
706  * @mu_mimo_owner: indicates interface owns MU-MIMO capability
708  *	when it is not assigned. This pointer is RCU-protected due to the TX
710  *	be off when it is %NULL there can still be races and packets could be
725  * @he_su_beamformer: in AP-mode, does this BSS support operation as an HE SU
727  * @he_su_beamformee: in AP-mode, does this BSS support operation as an HE SU
729  * @he_mu_beamformer: in AP-mode, does this BSS support operation as an HE MU
732  *	(non-AP STA) of an HE TB PPDU on an RU that spans the entire PPDU
734  * @eht_su_beamformer: in AP-mode, does this BSS enable operation as an EHT SU
736  * @eht_su_beamformee: in AP-mode, does this BSS enable operation as an EHT SU
738  * @eht_mu_beamformer: in AP-mode, does this BSS enable operation as an EHT MU
740  * @eht_80mhz_full_bw_ul_mumimo: in AP-mode, does this BSS support the
743  * @bss_param_ch_cnt: in BSS-mode, the BSS params change count. This
746  * @bss_param_ch_cnt_link_id: in BSS-mode, the link_id to which the beacon
855  * enum mac80211_tx_info_flags - flags to describe transmission information/status
864  *	assign sequence numbers to QoS-data frames but cannot do so correctly
865  *	for non-QoS-data and management frames because beacons need them from
869  *	802.11-2007 7.1.3.4.1 paragraph 3. This flag will always be set for
876  * @IEEE80211_TX_CTL_AMPDU: this frame should be sent as part of an A-MPDU
897  *	off-channel operation.
901  *	used to indicate that a frame was already retried due to PS
905  *	frame (PS-Poll or uAPSD) or a non-bufferable MMPDU and must
921  * @IEEE80211_TX_CTL_STBC: Enables Space-Time Block Coding (STBC) for this
924  *	the off-channel channel when a remain-on-channel offload is done
925  *	in hardware -- normal packets still flow and are expected to be
937  *	PS-Poll responses.
947  *	This flag must not be set for frames that don't request no-ack
992  * enum mac80211_tx_control_flags - flags to describe transmit control
997  *	frame (PS-Poll or uAPSD).
999  * @IEEE80211_TX_CTRL_AMSDU: This frame is an A-MSDU frame
1022  * These flags are used in tx_info->control.flags.
1045  * enum mac80211_tx_status_flags - flags to describe transmit status
1049  * These flags are used in tx_info->status.flags.
1069  * enum mac80211_rate_control_flags - per-rate flags set by the
1076  * @IEEE80211_TX_RC_USE_CTS_PROTECT: CTS-to-self protection is required.
1123  * struct ieee80211_tx_rate - rate selection/status
1129  * A value of -1 for @idx indicates an invalid rate and, if used
1141  *    { 3, 2 }, { 2, 2 }, { 1, 4 }, { -1, 0 }, { -1, 0 }
1149  *   { 3, 2 }, { 2, 2 }, { 1, 1 }, { -1, 0 } ...
1164 	return rate->idx >= 0 && rate->count > 0;  in ieee80211_rate_valid()
1171 	WARN_ON((nss - 1) & ~0x7);  in ieee80211_rate_set_vht()
1172 	rate->idx = ((nss - 1) << 4) | mcs;  in ieee80211_rate_set_vht()
1178 	return rate->idx & 0xF;  in ieee80211_rate_get_vht_mcs()
1184 	return (rate->idx >> 4) + 1;  in ieee80211_rate_get_vht_nss()
1188  * struct ieee80211_tx_info - skb transmit information
1190  * This structure is placed in skb->cb for three uses:
1191  *  (1) mac80211 TX control - mac80211 tells the driver what to do
1193  *  (3) TX status information - driver tells mac80211 what happened
1203  * @tx_time_est: TX time estimate in units of 4us, used internally
1215  * @control.enqueue_time: enqueue time (for iTXQs)
1302 	 * in increments of 4us and clamp the maximum to 2**12-1  in ieee80211_info_set_tx_time_est()
1304 	info->tx_time_est = min_t(u16, tx_time_est, 4095) >> 2;  in ieee80211_info_set_tx_time_est()
1305 	return info->tx_time_est << 2;  in ieee80211_info_set_tx_time_est()
1311 	return info->tx_time_est << 2;  in ieee80211_info_get_tx_time_est()
1315  * struct ieee80211_rate_status - mrr stage for status path
1322  * @tx_power_idx An idx into the ieee80211_hw->tx_power_levels list of the
1333  * struct ieee80211_tx_status - extended tx status info for rate control
1357  * struct ieee80211_scan_ies - descriptors for different blocks of IEs
1378 	return (struct ieee80211_tx_info *)skb->cb;  in IEEE80211_SKB_CB()
1383 	return (struct ieee80211_rx_status *)skb->cb;  in IEEE80211_SKB_RXCB()
1387  * ieee80211_tx_info_clear_status - clear TX status
1412 		info->status.rates[i].count = 0;  in ieee80211_tx_info_clear_status()
1413 	memset_after(&info->status, 0, rates);  in ieee80211_tx_info_clear_status()
1418  * enum mac80211_rx_flags - receive flags
1424  * @RX_FLAG_MMIC_STRIPPED: the Michael MIC is stripped off this frame,
1434  *	de-duplication by itself.
1440  *	field) is valid if this field is non-zero, and the position
1443  *	field) is valid and contains the time the first symbol of the MPDU
1447  *	field) is valid and contains the time the last symbol of the MPDU
1450  *	field) is valid and contains the time the SYNC preamble was received.
1457  *	Valid only for data frames (mainly A-MPDU)
1458  * @RX_FLAG_AMPDU_DETAILS: A-MPDU details are known, in particular the reference
1460  *	each A-MPDU
1462  *	subframes of a single A-MPDU
1463  * @RX_FLAG_AMPDU_IS_LAST: this subframe is the last subframe of the A-MPDU
1476  * @RX_FLAG_AMSDU_MORE: Some drivers may prefer to report separate A-MSDU
1478  *	All, but the last MSDU from an A-MSDU should have this flag set. E.g.
1479  *	if an A-MSDU has 3 frames, the first 2 must have the flag set, while
1481  *	deal with retransmission/duplication recovery properly since A-MSDU
1483  *	either regular MSDU or singly A-MSDUs. Subframes must not be
1486  *	skb->data (before the 802.11 header).
1496  * @RX_FLAG_AMPDU_EOF_BIT: Value of the EOF bit in the A-MPDU delimiter for this
1502  *	 - DATA3_DATA_MCS
1503  *	 - DATA3_DATA_DCM
1504  *	 - DATA3_CODING
1505  *	 - DATA5_GI
1506  *	 - DATA5_DATA_BW_RU_ALLOC
1507  *	 - DATA6_NSTS
1508  *	 - DATA3_STBC
1513  * @RX_FLAG_RADIOTAP_LSIG: L-SIG radiotap data is present
1515  *	the "0-length PSDU" field included there.  The value for it is
1558  * enum mac80211_rx_encoding_flags - MCS & bandwidth flags
1562  * @RX_ENC_FLAG_HT_GF: This frame was received in a HT-greenfield transmission,
1567  * @RX_ENC_FLAG_STBC_MASK: STBC 2 bit bitmask. 1 - Nss=1, 2 - Nss=2, 3 - Nss=3
1590  * struct ieee80211_rx_status - receive status
1592  * The low-level driver should provide this information (the subset
1596  * @mactime: value in microseconds of the 64-bit Time Synchronization Function
1608  *	for data (other) frames - for those it only affects radiotap reporting.
1615  * @chain_signal: per-chain signal strength, in dBm (unlike @signal, doesn't
1632  * @ampdu_reference: A-MPDU reference number, must be a different value for
1633  *	each A-MPDU but the same for each subframe within one A-MPDU
1634  * @zero_length_psdu_type: radiotap type of the 0-length PSDU
1678 	return MHZ_TO_KHZ(rx_status->freq) +  in ieee80211_rx_status_to_khz()
1679 	       (rx_status->freq_offset ? 500 : 0);  in ieee80211_rx_status_to_khz()
1683  * enum ieee80211_conf_flags - configuration flags
1687  * @IEEE80211_CONF_MONITOR: there's a monitor interface present -- use this
1691  *	This is the power save mode defined by IEEE 802.11-2007 section 11.2,
1699  *	may turn the device off as much as possible. Typically, this flag will
1714  * enum ieee80211_conf_changed - denotes which configuration changed
1718  * @IEEE80211_CONF_CHANGE_PS: the PS flag or dynamic PS timeout changed
1739  * enum ieee80211_smps_mode - spatial multiplexing power save mode
1742  * @IEEE80211_SMPS_OFF: off
1758  * struct ieee80211_conf - configuration of the device
1768  * @dynamic_ps_timeout: The dynamic powersave timeout (in ms), see the
1806  * struct ieee80211_channel_switch - holds the channel switch data
1811  * @timestamp: value in microseconds of the 64-bit Time Synchronization
1821  * @delay: maximum delay between the time the AP transmitted the last beacon in
1822  *	current channel and the expected time of the first beacon in the new
1824  * @link_id: the link ID of the link doing the channel switch, 0 for non-MLO
1837  * enum ieee80211_vif_flags - virtual interface flags
1842  *	monitoring on this virtual interface -- i.e. it can monitor
1845  * @IEEE80211_VIF_SUPPORTS_UAPSD: The device can do U-APSD for this
1857  *	handle OFDMA (downlink and trigger for uplink) on a per-AP basis.
1874  * enum ieee80211_offload_flags - virtual interface offload flags
1879  * @IEEE80211_OFFLOAD_ENCAP_4ADDR: support 4-address mode encapsulation offload
1892  * struct ieee80211_vif_cfg - interface configuration
1896  * @ps: power-save mode (STA only). This flag is NOT affected by
1899  * @eml_cap: EML capabilities as described in P802.11be_D4.1 Figure 9-1001j.
1901  *	P802.11be_D4.1 Figure 9-1001i.
1903  *	Figure 9-1001k
1917  * @ap_addr: AP MLD address, or BSSID for non-MLO connections
1924 	bool ps;  member
1942  * struct ieee80211_neg_ttlm - negotiated TID to link map info
1957  * enum ieee80211_neg_ttlm_res - return value for negotiated TTLM handling
1969  * struct ieee80211_vif - per-interface data
1978  * @link_conf: in case of MLD, the per-link BSS configuration,
1980  * @valid_links: bitmap of valid links, or 0 for non-MLO.
1981  * @active_links: The bitmap of active links, or 0 for non-MLO.
1986  *	0 for non-MLO.
1990  *	0 for non-MLO.
1997  *	interface, i.e. a GO or p2p-sta respectively
1999  *	vif. mac80211 initializes this to hw->netdev_features, and the driver
2012  * @cab_queue: content-after-beacon (DTIM beacon really) queue, AP mode only
2023  * @offload_flags: 802.3 -> 802.11 enapsulation offload flags, see
2061  * ieee80211_vif_usable_links - Return the usable links for the vif
2067 	return vif->valid_links & ~vif->dormant_links;  in ieee80211_vif_usable_links()
2071  * ieee80211_vif_is_mld - Returns true iff the vif is an MLD one
2078 	return vif->valid_links != 0;  in ieee80211_vif_is_mld()
2082  * ieee80211_vif_link_active - check if a given link is active
2093 	return vif->active_links & BIT(link_id);  in ieee80211_vif_link_active()
2097 	for (link_id = 0; link_id < ARRAY_SIZE((vif)->link_conf); link_id++)	\
2098 		if ((!(vif)->active_links ||					\
2099 		     (vif)->active_links & BIT(link_id)) &&			\
2105 	return vif->type == NL80211_IFTYPE_MESH_POINT;  in ieee80211_vif_is_mesh()
2111  * wdev_to_ieee80211_vif - return a vif struct from a wdev
2124  * ieee80211_vif_to_wdev - return a wdev struct from a vif
2137 	return lockdep_is_held(&ieee80211_vif_to_wdev(vif)->wiphy->mtx);  in lockdep_vif_wiphy_mutex_held()
2141 	rcu_dereference_protected((vif)->link_conf[link_id],	\
2145 	rcu_dereference_check((vif)->link_conf[link_id],	\
2149  * enum ieee80211_key_flags - key flags
2192  * @IEEE80211_KEY_FLAG_SPP_AMSDU: SPP A-MSDUs can be used with this key
2193  *	(set by mac80211 from the sta->spp_amsdu flag)
2211  * struct ieee80211_key_conf - key information
2223  * @keyidx: the key index (0-7)
2225  * @key: key material. For ALG_TKIP the key is encoded as a 256-bit (32 byte)
2227  * 	- Temporal Encryption Key (128 bits)
2228  * 	- Temporal Authenticator Tx MIC Key (64 bits)
2229  * 	- Temporal Authenticator Rx MIC Key (64 bits)
2232  * @link_id: the link ID, 0 for non-MLO, or -1 for pairwise keys
2253  * struct ieee80211_key_seq - key sequence counter
2264  * @hw: data for HW-only (e.g. cipher scheme) keys
2292  * enum set_key_cmd - key command
2305  * enum ieee80211_sta_state - station state
2324  * enum ieee80211_sta_rx_bandwidth - station RX bandwidth
2346  * struct ieee80211_sta_rates - station rate selection table
2350  *	Overriding entries per-packet is possible by using cb tx control.
2364  * struct ieee80211_sta_txpwr - station txpower configuration
2382  * struct ieee80211_sta_aggregates - info that is aggregated from active links
2384  * Used for any per-link data that needs to be aggregated and updated in the
2387  * @max_amsdu_len: indicates the maximal length of an A-MSDU in bytes.
2392  *	  A-MSDU maximal size is min(max_amsdu_len, 4065) bytes.
2393  *	* If the skb is not part of a BA agreement, the A-MSDU maximal
2397  * driver. This is defined by the spec (IEEE 802.11-2012 section
2399  * @max_rc_amsdu_len: Maximum A-MSDU size in bytes recommended by rate control.
2400  * @max_tid_amsdu_len: Maximum A-MSDU size in bytes for this TID
2410  * struct ieee80211_link_sta - station Link specific info
2415  * @addr: MAC address of the Link STA. For non-MLO STA this is same as the addr
2419  * @smps_mode: current SMPS mode (off, static or dynamic)
2426  * @agg: per-link data for multi-link aggregation
2457  * struct ieee80211_sta - station table entry
2460  * communicating with. Since stations are RCU-managed in
2488  *	A-MSDU. Taken from the Extended Capabilities element. 0 means
2493  * @support_p2p_ps: indicates whether the STA supports P2P PS mechanism or not.
2494  * @txq: per-TID data TX queues; note that the last entry (%IEEE80211_NUM_TIDS)
2495  *	is used for non-data frames
2507  * @valid_links: bitmap of valid links, or 0 for non-MLO
2508  * @spp_amsdu: indicates whether the STA uses SPP A-MSDU or not.
2549 	rcu_dereference_protected((sta)->link[link_id],		\
2553 	rcu_dereference_check((sta)->link[link_id],		\
2557 	for (link_id = 0; link_id < ARRAY_SIZE((sta)->link); link_id++)		\
2558 		if ((!(vif)->active_links ||					\
2559 		     (vif)->active_links & BIT(link_id)) &&			\
2563  * enum sta_notify_cmd - sta notify command
2576  * struct ieee80211_tx_control - TX control data
2586  * struct ieee80211_txq - Software intermediate tx queue
2589  * @sta: station table entry, %NULL for per-vif queue
2590  * @tid: the TID for this queue (unused for per-vif queue),
2591  *	%IEEE80211_NUM_TIDS for non-data (if enabled)
2593  * @drv_priv: driver private area, sized by hw->txq_data_size
2609  * enum ieee80211_hw_flags - hardware flags
2657  *	Hardware supports 11n A-MPDU aggregation.
2664  *	stack support for dynamic PS.
2667  *	Hardware has support for dynamic PS.
2678  *	periodic keep-alives to the AP and probing the AP on beacon loss.
2685  *	per-station GTKs as used by IBSS RSN or during fast transition. If
2686  *	the device doesn't support per-station GTKs, but can be asked not
2692  *	autonomously manages the PS status of connected stations. When
2693  *	this flag is set mac80211 will not trigger PS mode for connected
2696  *	the PS mode of connected stations.
2698  * @IEEE80211_HW_TX_AMPDU_SETUP_IN_HW: The device handles TX A-MPDU session
2712  *	be created.  It is expected user-space will create vifs as
2716  *	crypto algorithms can be done in software - so don't automatically
2721  * @IEEE80211_HW_SUPPORT_FAST_XMIT: The driver/hardware supports fast-xmit,
2725  * @IEEE80211_HW_QUEUE_CONTROL: The driver wants to control per-interface
2744  * @IEEE80211_HW_CHANCTX_STA_CSA: Support 802.11h based channel-switch (CSA)
2758  * @IEEE80211_HW_SUPPORTS_AMSDU_IN_AMPDU: The driver supports receiving A-MSDUs
2759  *	within A-MPDU.
2767  *	from connecting to two virtual AP interfaces at the same time.
2775  *	which implies using per-CPU station statistics.
2778  *	A-MSDU frames. Requires software tx queueing and fast-xmit support.
2780  *	limit the maximum A-MSDU size based on the current tx rate by setting
2784  *	skbs, needed for zero-copy software A-MSDU.
2799  *	support QoS NDP for AP probing - that's most likely a driver bug.
2807  *	but if the rate control is built-in then it must be set by the driver.
2810  * @IEEE80211_HW_STA_MMPDU_TXQ: use the extra non-TID per-station TXQ for all
2814  * @IEEE80211_HW_TX_STATUS_NO_AMPDU_LEN: Driver does not report accurate A-MPDU
2824  *	A-MPDU sessions active while rekeying with Extended Key ID.
2926  * struct ieee80211_hw - hardware information and state
2980  *	sub-frames) to be used for A-MPDU block ack receiver
2993  * @max_tx_fragments: maximum number of tx buffers per (A)-MSDU, sum
2994  *	of 1 + skb_shinfo(skb)->nr_frags for each skb in the frag_list.
3009  *	@units_pos member is set to a non-negative value then the timestamp
3015  * @radiotap_timestamp.accuracy: If non-negative, fills the accuracy in the
3023  *	for each access category if it is uAPSD trigger-enabled and delivery-
3026  *	that corresponding AC is both trigger- and delivery-enabled. '0' means
3093 	return test_bit(flg, hw->flags);  in _ieee80211_hw_check()
3100 	return __set_bit(flg, hw->flags);  in _ieee80211_hw_set()
3105  * struct ieee80211_scan_request - hw scan request
3118  * struct ieee80211_tdls_ch_sw_params - TDLS channel switch parameters
3120  * @sta: peer this TDLS channel-switch request/response came from
3121  * @chandef: channel referenced in a TDLS channel-switch request
3123  * @status: channel-switch response status
3124  * @timestamp: time at which the frame was received
3125  * @switch_time: switch-timing parameter received in the frame
3126  * @switch_timeout: switch-timing parameter received in the frame
3127  * @tmpl_skb: TDLS switch-channel response template
3128  * @ch_sw_tm_ie: offset of the channel-switch timing IE inside @tmpl_skb
3143  * wiphy_to_ieee80211_hw - return a mac80211 driver hw struct from a wiphy
3149  * structure can then access it via hw->priv. Note that mac802111 drivers should
3158  * SET_IEEE80211_DEV - set device for 802.11 hardware
3165 	set_wiphy_dev(hw->wiphy, dev);  in SET_IEEE80211_DEV()
3169  * SET_IEEE80211_PERM_ADDR - set the permanent MAC address for 802.11 hardware
3176 	memcpy(hw->wiphy->perm_addr, addr, ETH_ALEN);  in SET_IEEE80211_PERM_ADDR()
3183 	if (WARN_ON_ONCE(c->control.rates[0].idx < 0))  in ieee80211_get_tx_rate()
3185 	return &hw->wiphy->bands[c->band]->bitrates[c->control.rates[0].idx];  in ieee80211_get_tx_rate()
3192 	if (c->control.rts_cts_rate_idx < 0)  in ieee80211_get_rts_cts_rate()
3194 	return &hw->wiphy->bands[c->band]->bitrates[c->control.rts_cts_rate_idx];  in ieee80211_get_rts_cts_rate()
3201 	if (c->control.rates[idx + 1].idx < 0)  in ieee80211_get_alt_retry_rate()
3203 	return &hw->wiphy->bands[c->band]->bitrates[c->control.rates[idx + 1].idx];  in ieee80211_get_alt_retry_rate()
3207  * ieee80211_free_txskb - free TX skb
3217  * ieee80211_purge_tx_queue - purge TX skb queue
3248  * the key is now in use, -%EOPNOTSUPP or -%ENOSPC if it couldn't be
3273  * This happens every time the iv16 wraps around (every 65536 packets). The
3284  * when they are able to replace in-use PTK keys according to the following
3289       at the time of the key deletion (including re-transmits),
3312  * IEEE 802.11-2007 section 11.2 is enabled. This is not to be confused
3317  * When PS is enabled, hardware needs to wakeup for beacons and receive the
3330  * hardware stays awake for a user-specified period of time after sending a
3337  * PS based on traffic. Driver needs to only set %IEEE80211_HW_SUPPORTS_PS
3339  * hardware having support for the dynamic PS feature may set the
3341  * dynamic PS mode itself. The driver needs to look at the
3344  * dynamic PS feature in stack and will just keep %IEEE80211_CONF_PS
3347  * Driver informs U-APSD client support by enabling
3351  * utilize U-APSD, dynamic powersave is disabled for voip AC and all frames
3354  * Note: U-APSD client mode is not yet supported with
3375  * The time (or number of beacons missed) until the firmware notifies the
3385  *  - a list of information element IDs
3386  *  - a list of OUIs for the vendor information element
3400  * the various vendor-assigned IEs with unknown contents (128, 129, 133-136,
3424  * and rationale, please refer to 802.11 (as amended by 802.11n-2009)
3436  * turned off otherwise.
3488  * client powersaving, both "legacy" PS (PS-Poll/null data) and uAPSD.
3492  * will not poll with PS-Poll and trigger with uAPSD at the same time.
3503  * handle PS-Poll/uAPSD.
3517  * it can PS-Poll, or it can possibly start a uAPSD service period.
3520  * the station sends a PS-Poll or a uAPSD trigger frame, mac80211
3525  * response to a PS-Poll) also has %IEEE80211_TX_STATUS_EOSP set to
3531  * Additionally, non-bufferable MMPDUs can also be transmitted by
3539  * transmitted to a certain station is out-of-band communication to
3557  * there is more data on other TIDs -- the TIDs to release frames
3562  * shorten service periods (or abort PS-Poll responses), it must
3564  * are buffered in the driver -- those must remain buffered to avoid
3575  * Note that if the driver ever buffers frames other than QoS-data
3576  * frames, it must take care to never send a non-QoS-data frame as
3577  * the last frame in a service period, adding a QoS-nulldata frame
3578  * after a non-QoS-data frame if needed.
3585  * assignment of per-interface AC software queues to hardware queues. This
3587  * 1) off-channel transmissions might get stuck behind other frames
3589  * 3) after-DTIM frames could get stuck behind other frames
3613  * after-DTIM queue for AP:   8
3614  * off-channel queue:         9
3625  * and the second virtual interface with 4-7.
3637  * enum ieee80211_filter_flags - hardware filter flags
3660  * @FIF_CONTROL: pass control frames (except for PS Poll) addressed to this
3665  * @FIF_PSPOLL: pass PS Poll frames
3684  * enum ieee80211_ampdu_mlme_action - A-MPDU actions
3729  * struct ieee80211_ampdu_params - AMPDU action parameters
3740  * @amsdu: indicates the peer's ability to receive A-MSDU within A-MPDU.
3756  * enum ieee80211_frame_release_type - frame release reason
3757  * @IEEE80211_FRAME_RELEASE_PSPOLL: frame released for PS-Poll
3759  *	frame received on trigger-enabled AC
3767  * enum ieee80211_rate_control_changed - flags to indicate what changed
3771  *	information -- for HT20/40 the IEEE80211_HT_CAP_SUP_WIDTH_20_40
3788  * enum ieee80211_roc_type - remain on channel type
3806  * enum ieee80211_reconfig_type - reconfig type
3822  * struct ieee80211_prep_tx_info - prepare TX information
3823  * @duration: if non-zero, hint about the required duration,
3842  * struct ieee80211_ops - callbacks from mac80211 to the driver
3850  *	The low-level driver should send the frame out based on
3861  *	to avoid acknowledging frames before a non-monitor device
3866  *	is disabled. This should turn off the hardware (at least
3867  *	it must turn off frame reception.)
3877  *	reconfigured at resume time.
3945  *	non-MLO connections.
3986  *	offloading. The index can be 0-3, or -1 for unsetting it.
3995  *	at all but just send them after the SSID -- mac80211 includes the
4007  * @cancel_hw_scan: Ask the low-level tp cancel the active hw scan.
4012  *	scan_work after the low-level driver was already suspended.
4034  * @get_stats: Return low-level statistics.
4069  *	For non-MLO the callback will be called once for the default bss_conf
4081  *	For non-MLO the callback will be called once for the deflink with the
4098  *	isn't safe to use the pointer, not even RCU protected - no RCU grace
4123  *	let the driver pre-fill the statistics. The driver can fill most of
4125  *	all of them make sense - see the source for which ones are possible.
4159  *	Returns non-zero if this device sent the last beacon.
4162  * @get_survey: Return per-channel survey information
4165  *	need to set wiphy->rfkill_poll to %true before registration,
4169  * @set_coverage_class: Set slot time for given coverage class as specified
4170  *	in IEEE 802.11-2007 section 17.3.8.6 and modify ACK timeout
4171  *	accordingly; coverage class equals to -1 to enable ACK timeout
4198  *	reject TX/RX mask combinations they cannot support by returning -EINVAL
4203  * @remain_on_channel: Starts an off-channel period on the given channel, must
4206  *	offload. Frames to transmit on the off-channel channel are transmitted
4208  *	duration (which will always be non-zero) expires, the driver must call
4213  * @cancel_remain_on_channel: Requests that an ongoing off-channel period is
4233  *	to release some frames, either for PS-poll or uAPSD.
4236  *	the frames being released then it must still set the more-data bit in
4238  *	more-data bit must always be set.
4240  *	from, for PS-poll it will always have only a single bit set.
4241  *	In the case this is used for a PS-poll initiated release, the
4244  *	on the TX status (and must report TX status) so that the PS-poll
4246  *	responses for a retried PS-poll frame.
4269  * @get_et_sset_count:  Ethtool API to get string-set count.
4276  *	and perhaps other supported types of ethtool data-sets.
4281  *	before associated. In multi-channel scenarios, a virtual interface is
4287  *	to give it channel time for the transmission, to get a response and be
4300  *	a TDLS discovery-request, we expect a reply to arrive on the AP's
4302  *	setup-response is a direct packet not buffered by the AP.
4304  *	discovery-request. The recommended period of protection is at least
4355  *	since there won't be any time to beacon before the switch anyway.
4358  *	gets a CSA or a userspace initiated channel-switch), allowing
4381  * @tdls_channel_switch: Start channel-switching with a TDLS peer. The driver
4382  *	is responsible for continually initiating channel-switching operations
4384  *	driver receives a channel-switch request template and the location of
4385  *	the switch-timing IE within the template as part of the invocation.
4387  *	optionally copy the skb for further re-use.
4388  * @tdls_cancel_channel_switch: Stop channel-switching with a TDLS peer. Both
4390  * @tdls_recv_channel_switch: a TDLS channel-switch related frame (request or
4393  *	an ongoing channel-switch operation. In addition, a channel-switch
4395  *	switch-timing IE within the template. The skb can only be used within
4419  *	aggregating two specific frames in the same A-MSDU. The relation
4421  *	skb is always a real frame, head may or may not be an A-MSDU.
4433  *	4-address mode
4459  *	new links bitmaps may be 0 if going from/to a non-MLO situation.
4466  *	i.e. passed to @sta_add/@sta_state with sta->valid_links not zero.
4476  *	if the requested TID-To-Link mapping can be accepted or not.
4478  *	modify @ttlm parameter with the suggested TID-to-Link mapping.
4626 	 * Perform a certain A-MPDU action.
4636 	 * - ``TX: 1.....7``
4637 	 * - ``RX:  2....7`` (lost frame #1)
4638 	 * - ``TX:        8..1...``
4640 	 * which is invalid since #1 was now re-transmitted well past the
4643 	 * - ``TX:        1   or``
4644 	 * - ``TX:        18  or``
4645 	 * - ``TX:        81``
4874  * ieee80211_alloc_hw_nm - Allocate a new hardware device
4894  * ieee80211_alloc_hw - Allocate a new hardware device
4915  * ieee80211_register_hw - Register hardware device
4928  * struct ieee80211_tpt_blink - throughput blink description
4930  * @blink_time: blink time in milliseconds
4931  *	(full cycle, ie. one off + one on period)
4939  * enum ieee80211_tpt_led_trigger_flags - throughput trigger flags
4963  * ieee80211_get_tx_led_name - get name of TX LED
4984  * ieee80211_get_rx_led_name - get name of RX LED
5005  * ieee80211_get_assoc_led_name - get name of association LED
5026  * ieee80211_get_radio_led_name - get name of radio LED
5047  * ieee80211_create_tpt_led_trigger - create throughput LED trigger
5050  * @blink_table: the blink table -- needs to be ordered by throughput
5072  * ieee80211_unregister_hw - Unregister a hardware device
5082  * ieee80211_free_hw - free hardware descriptor
5093  * ieee80211_restart_hw - restart hardware completely
5099  * calling the ->start() operation. The driver will need to reset all
5107  * ieee80211_rx_list - receive frame and store processed skbs in a list
5132  * ieee80211_rx_napi - receive frame from NAPI context
5157  * ieee80211_rx - receive frame
5182  * ieee80211_rx_irqsafe - receive frame
5197  * ieee80211_rx_ni - receive frame (in process context)
5218  * ieee80211_sta_ps_transition - PS transition for connected sta
5222  * entering/leaving PS mode.
5230  * @start: start or stop PS
5232  * Return: 0 on success. -EINVAL when the requested PS mode is already set.
5237  * ieee80211_sta_ps_transition_ni - PS transition for connected sta
5245  * @start: start or stop PS
5262  * ieee80211_sta_pspoll - PS-Poll frame received
5266  * use this function to inform mac80211 that a PS-Poll frame from a
5275  * ieee80211_sta_uapsd_trigger - (potential) U-APSD trigger frame received
5299  * ieee80211_sta_set_buffered - inform mac80211 about driver-buffered frames
5313  * If all frames are released to the station (due to PS-poll or uAPSD)
5330  * ieee80211_get_tx_rates - get the selected transmit rates for a packet
5332  * Call this function in a driver with per-packet rate selection support
5349  * ieee80211_sta_set_expected_throughput - set the expected tpt for a station
5365  * ieee80211_tx_rate_update - transmit rate update callback
5367  * Drivers should call this functions with a non-NULL pub sta
5380  * ieee80211_tx_status_skb - transmit status callback
5399  * ieee80211_tx_status_ext - extended transmit status callback
5416  * ieee80211_tx_status_noskb - transmit status callback without skb
5444  * ieee80211_tx_status_ni - transmit status callback (in process context)
5464  * ieee80211_tx_status_irqsafe - IRQ-safe transmit status callback
5479  * ieee80211_report_low_ack - report non-responding station
5481  * When operating in AP-mode, call this function to report a non-responding
5484  * @sta: the non-responding connected sta
5492  * struct ieee80211_mutable_offsets - mutable beacon offsets
5509  * ieee80211_beacon_get_template - beacon template generation function
5536  * ieee80211_beacon_get_template_ema_index - EMA beacon template generation
5541  * @link_id: the link id to which the beacon belongs (or 0 for a non-MLD AP).
5557  * struct ieee80211_ema_beacons - List of EMA beacons
5574  * ieee80211_beacon_get_template_ema_list - EMA beacon template generation
5577  * @link_id: the link id to which the beacon belongs (or 0 for a non-MLD AP)
5595  * ieee80211_beacon_free_ema_list - free an EMA beacon template list
5604  * ieee80211_beacon_get_tim - beacon generation function
5608  *	Set to 0 if invalid (in non-AP modes).
5611  *	Set to 0 if invalid (in non-AP modes).
5620  * frame from mac80211 -- it is responsible for calling this function exactly
5633  * ieee80211_beacon_get - beacon generation function
5651  * ieee80211_beacon_update_cntdwn - request mac80211 to decrement the beacon countdown
5653  * @link_id: valid link_id during MLO or 0 for non-MLO
5667  * ieee80211_beacon_set_cntdwn - request mac80211 to set beacon countdown
5680  * ieee80211_csa_finish - notify mac80211 about channel switch
5682  * @link_id: valid link_id during MLO or 0 for non-MLO
5691  * ieee80211_beacon_cntdwn_is_complete - find out if countdown reached 1
5693  * @link_id: valid link_id during MLO or 0 for non-MLO
5701  * ieee80211_color_change_finish - notify mac80211 about color change
5703  * @link_id: valid link_id during MLO or 0 for non-MLO
5712  * ieee80211_proberesp_get - retrieve a Probe Response template
5727  * ieee80211_pspoll_get - retrieve a PS Poll template
5731  * Creates a PS Poll a template which can, for example, uploaded to
5738  * Return: The PS Poll template. %NULL on error.
5744  * ieee80211_nullfunc_get - retrieve a nullfunc template
5770  * ieee80211_probereq_get - retrieve a Probe Request template
5772  * @src_addr: source MAC address
5788  * ieee80211_rts_get - RTS frame generation function
5797  * hardware/firmware), the low-level driver uses this function to receive
5798  * the next RTS frame from the 802.11 code. The low-level is responsible
5807  * ieee80211_rts_duration - Get the duration field for an RTS frame
5814  * the duration field, the low-level driver uses this function to receive
5815  * the duration field value in little-endian byteorder.
5824  * ieee80211_ctstoself_get - CTS-to-self frame generation function
5827  * @frame: pointer to the frame that is going to be protected by the CTS-to-self.
5830  * @cts: The buffer where to store the CTS-to-self frame.
5832  * If the CTS-to-self frames are generated by the host system (i.e., not in
5833  * hardware/firmware), the low-level driver uses this function to receive
5834  * the next CTS-to-self frame from the 802.11 code. The low-level is responsible
5835  * for calling this function before and CTS-to-self frame is needed.
5844  * ieee80211_ctstoself_duration - Get the duration field for a CTS-to-self frame
5847  * @frame_len: the length of the frame that is going to be protected by the CTS-to-self.
5850  * If the CTS-to-self is generated in firmware, but the host system must provide
5851  * the duration field, the low-level driver uses this function to receive
5852  * the duration field value in little-endian byteorder.
5862  * ieee80211_generic_frame_duration - Calculate the duration field for a frame
5881  * ieee80211_get_buffered_bc - accessing buffered broadcast and multicast frames
5888  * memory. The low-level driver uses this function to fetch next buffered
5895  * generated with ieee80211_beacon_get() and the low-level driver must thus
5897  * NULL if the previous generated beacon was not DTIM, so the low-level driver
5905  * ieee80211_get_tkip_p1k_iv - get a TKIP phase 1 key for IV32
5917  * ieee80211_get_tkip_p1k - get a TKIP phase 1 key
5930 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;  in ieee80211_get_tkip_p1k()
5931 	const u8 *data = (u8 *)hdr + ieee80211_hdrlen(hdr->frame_control);  in ieee80211_get_tkip_p1k()
5938  * ieee80211_get_tkip_rx_p1k - get a TKIP phase 1 key for RX
5952  * ieee80211_get_tkip_p2k - get a TKIP phase 2 key
5966  * ieee80211_tkip_add_iv - write TKIP IV and Ext. IV to pos
5981  * ieee80211_get_key_rx_seq - get key RX sequence counter
5984  * @tid: The TID, or -1 for the management frame value (CCMP/GCMP only);
5985  *	the value on TID 0 is also used for non-QoS frames. For
6000  * ieee80211_set_key_rx_seq - set key RX sequence counter
6003  * @tid: The TID, or -1 for the management frame value (CCMP/GCMP only);
6004  *	the value on TID 0 is also used for non-QoS frames. For
6020  * ieee80211_remove_key - remove the given key
6026  * time this function is called, it is not deleted in the hardware but
6032  * ieee80211_gtk_rekey_add - add a GTK key from rekeying during WoWLAN
6035  * @link_id: the link id of the key or -1 for non-MLO
6043  * mac80211-owned memory. In case of errors, the function returns an
6067  * ieee80211_gtk_rekey_notify - notify userspace supplicant of rekeying
6077  * ieee80211_key_mic_failure - increment MIC failure counter for the key
6080  * at the same time.
6087  * ieee80211_key_replay - increment replay counter for the key
6090  * at the same time.
6097  * ieee80211_wake_queue - wake specific queue
6106  * ieee80211_stop_queue - stop specific queue
6115  * ieee80211_queue_stopped - test status of the queue
6127  * ieee80211_stop_queues - stop all queues
6135  * ieee80211_wake_queues - wake all queues
6143  * ieee80211_scan_completed - completed hardware scan
6157  * ieee80211_sched_scan_results - got results from scheduled scan
6167  * ieee80211_sched_scan_stopped - inform that the scheduled scan has stopped
6179  * enum ieee80211_interface_iteration_flags - interface iteration flags
6184  *	haven't been re-added to the driver yet.
6186  *	interfaces, even if they haven't been re-added to the driver yet.
6200  * ieee80211_iterate_interfaces - iterate interfaces
6218  * ieee80211_iterate_active_interfaces - iterate active interfaces
6244  * ieee80211_iterate_active_interfaces_atomic - iterate active interfaces
6265  * ieee80211_iterate_active_interfaces_mtx - iterate active interfaces
6284  * ieee80211_iterate_stations_atomic - iterate stations
6301  * ieee80211_iterate_stations_mtx - iterate stations
6318  * ieee80211_queue_work - add work onto the mac80211 workqueue
6329  * ieee80211_queue_delayed_work - add work onto the mac80211 workqueue
6343  * ieee80211_refresh_tx_agg_session_timer - Refresh a tx agg session timer.
6357  * ieee80211_start_tx_ba_session - Start a tx Block Ack session.
6372  * ieee80211_start_tx_ba_cb_irqsafe - low level driver ready to aggregate.
6385  * ieee80211_stop_tx_ba_session - Stop a Block Ack session.
6398  * ieee80211_stop_tx_ba_cb_irqsafe - low level driver ready to stop aggregate.
6411  * ieee80211_find_sta - find a station
6425  * ieee80211_find_sta_by_ifaddr - find a station on hardware
6429  * @localaddr: local address (vif->sdata->vif.addr). Use NULL for 'any'.
6451  * ieee80211_find_sta_by_link_addrs - find STA by link addresses
6469  * ieee80211_sta_block_awake - block station from waking up
6480  * This function allows implementing this mode in a race-free
6490  * cause mac80211 to be able to send ps-poll responses, and if
6493  * will be notified that the station woke up some time after
6501  * ieee80211_sta_eosp - notify mac80211 about end of SP
6507  * This applies for PS-Poll as well as uAPSD.
6510  * not mix calls to irqsafe/non-irqsafe versions, this function
6512  * all non-irqsafe, don't mix!
6522  * ieee80211_send_eosp_nullfunc - ask mac80211 to send NDP with EOSP
6535  * will be sent despite the station being in power-save.
6544  * ieee80211_sta_recalc_aggregates - recalculate aggregate data after a change
6547  * Call this function after changing a per-link aggregate data as referenced in
6557  * ieee80211_sta_register_airtime - register airtime usage for a sta/tid
6564  * The reported airtime should as a minimum include all time that is spent
6566  * including time spent waiting for a TXOP. If the time is not reported by the
6568  * composition. When possible, the time should include any failed transmission
6585  * ieee80211_txq_airtime_check - check if a txq can send frame to device
6597  * ieee80211_iter_keys - iterate keys programmed into the device
6624  * ieee80211_iter_keys_rcu - iterate keys programmed into the device
6648  * ieee80211_iter_chan_contexts_atomic - iterate channel contexts
6663  * found while iterating, whether they've been re-added already
6674  * ieee80211_ap_probereq_get - retrieve a Probe Request template
6691  * ieee80211_beacon_loss - inform hardware does not receive beacons
6702  * ieee80211_connection_loss - inform hardware has lost connection to the AP
6718  * ieee80211_disconnect - request disconnection
6729  * ieee80211_resume_disconnect - disconnect from AP after resume
6752  * ieee80211_hw_restart_disconnect - disconnect from AP after
6762  * ieee80211_cqm_rssi_notify - inform a configured connection quality monitoring
6780  * ieee80211_cqm_beacon_loss_notify - inform CQM of beacon loss
6788  * ieee80211_radar_detected - inform that a radar was detected
6792  *	pass a valid pointer during MLO. For non-MLO %NULL can be passed
6798  * ieee80211_chswitch_done - Complete channel switch process
6804  * Complete the channel switch post-process: set the new operational channel
6811  * ieee80211_channel_switch_disconnect - disconnect due to channel switch error
6821  * ieee80211_request_smps - request SM PS transition
6824  * @smps_mode: new SM PS mode
6826  * This allows the driver to request an SM PS transition in managed
6834  * ieee80211_ready_on_channel - notification of remain-on-channel start
6840  * ieee80211_remain_on_channel_expired - remain_on_channel duration expired
6846  * ieee80211_stop_rx_ba_session - callback to stop existing BA sessions
6853  * therefore prevent the peer device to use a-mpdu aggregation.
6863  * ieee80211_mark_rx_ba_filtered_frames - move RX BA window and mark filtered
6882  * ieee80211_send_bar - send a BlockAckReq frame
6895  * ieee80211_manage_rx_ba_offl - helper to queue an RX BA work
6904  * ieee80211_start_rx_ba_session_offl - start a Rx BA session
6926  * ieee80211_stop_rx_ba_session_offl - stop a Rx BA session
6948  * ieee80211_rx_ba_timer_expired - stop a Rx BA session due to timeout
6965  * struct ieee80211_tx_rate_control - rate control information for/from RC algo
6977  * @short_preamble: whether mac80211 will request short-preamble transmission
6979  * @rate_idx_mask: user-requested (legacy) rate mask
6980  * @rate_idx_mcs_mask: user-requested MCS rate mask (NULL if not in use)
6996  * enum rate_control_capabilities - rate control capabilities
7009 	 * mac80211 should start A-MPDU sessions on tx
7052 	return (sta == NULL || sta->deflink.supp_rates[band] & BIT(index));  in rate_supported()
7061 	for (i = 0; i < sband->n_bitrates; i++)  in rate_lowest_index()
7062 		if (rate_supported(sta, sband->band, i))  in rate_lowest_index()
7078 	for (i = 0; i < sband->n_bitrates; i++)  in rate_usable_index_exists()
7079 		if (rate_supported(sta, sband->band, i))  in rate_usable_index_exists()
7085  * rate_control_set_rates - pass the sta rate selection to mac80211/driver
7108 	return conf->chandef.width == NL80211_CHAN_WIDTH_20;  in conf_is_ht20()
7114 	return conf->chandef.width == NL80211_CHAN_WIDTH_40 &&  in conf_is_ht40_minus()
7115 	       conf->chandef.center_freq1 < conf->chandef.chan->center_freq;  in conf_is_ht40_minus()
7121 	return conf->chandef.width == NL80211_CHAN_WIDTH_40 &&  in conf_is_ht40_plus()
7122 	       conf->chandef.center_freq1 > conf->chandef.chan->center_freq;  in conf_is_ht40_plus()
7128 	return conf->chandef.width == NL80211_CHAN_WIDTH_40;  in conf_is_ht40()
7134 	return (conf->chandef.width != NL80211_CHAN_WIDTH_5) &&  in conf_is_ht()
7135 		(conf->chandef.width != NL80211_CHAN_WIDTH_10) &&  in conf_is_ht()
7136 		(conf->chandef.width != NL80211_CHAN_WIDTH_20_NOHT);  in conf_is_ht()
7158 	return ieee80211_iftype_p2p(vif->type, vif->p2p);  in ieee80211_vif_type_p2p()
7162  * ieee80211_get_he_iftype_cap_vif - return HE capabilities for sband/vif
7176  * ieee80211_get_he_6ghz_capa_vif - return HE 6 GHz capabilities
7190  * ieee80211_get_eht_iftype_cap_vif - return ETH capabilities for sband/vif
7204  * ieee80211_update_mu_groups - set the VHT MU-MIMO groud data
7208  * @membership: 64 bits array - a bit is set if station is member of the group
7226  * ieee80211_ave_rssi - report the average RSSI for the specified interface
7238  * ieee80211_report_wowlan_wakeup - report WoWLAN wakeup
7250  * ieee80211_tx_prepare_skb - prepare an 802.11 skb for transmission
7266  * ieee80211_parse_tx_radiotap - Sanity-check and parse the radiotap header
7282  * struct ieee80211_noa_data - holds temporary data for tracking P2P NoA state
7309  * ieee80211_parse_p2p_noa - initialize NoA tracking data from P2P IE
7321  * ieee80211_update_p2p_noa - get next pending P2P GO absent state change
7329  * ieee80211_tdls_oper_request - request userspace to perform a TDLS operation
7343  * ieee80211_reserve_tid - request to reserve a specific TID
7364  * ieee80211_unreserve_tid - request to unreserve a specific TID
7380  * ieee80211_tx_dequeue - dequeue a packet from a software tx queue
7390  * skb->cb, e.g. the key pointer, are protected by RCU and thus the
7403  * ieee80211_tx_dequeue_ni - dequeue a packet from a software tx queue
7428  * ieee80211_handle_wake_tx_queue - mac80211 handler for wake_tx_queue callback
7440  * ieee80211_next_txq - get next tx queue to pull packets from
7452  * ieee80211_txq_schedule_start - start new scheduling round for TXQs
7471  * ieee80211_schedule_txq - schedule a TXQ for transmission
7489  * ieee80211_return_txq - return a TXQ previously acquired by ieee80211_next_txq()
7506  * ieee80211_txq_may_transmit - check whether TXQ is allowed to transmit
7520  * aligned against driver's own round-robin scheduler list. i.e it rotates
7535  * ieee80211_txq_get_depth - get pending frame/byte count of given txq
7538  * txq state can change half-way of this function and the caller may end up
7539  * with "new" frame_cnt and "old" byte_cnt or vice-versa.
7550  * ieee80211_nan_func_terminated - notify about NAN function termination.
7566  * ieee80211_nan_func_match - notify about NAN function match event.
7581  * ieee80211_calc_rx_airtime - calculate estimated transmission airtime for RX.
7598  * ieee80211_calc_tx_airtime - calculate estimated transmission airtime for TX.
7613  * ieee80211_get_fils_discovery_tmpl - Get FILS discovery template.
7625  * ieee80211_get_unsol_bcast_probe_resp_tmpl - Get unsolicited broadcast
7639  * ieee80211_obss_color_collision_notify - notify userland about a BSS color
7641  * @link_id: valid link_id during MLO or 0 for non-MLO
7652  * ieee80211_is_tx_data - check if frame is a data frame
7664 	struct ieee80211_hdr *hdr = (void *) skb->data;  in ieee80211_is_tx_data()
7666 	return info->flags & IEEE80211_TX_CTL_HW_80211_ENCAP ||  in ieee80211_is_tx_data()
7667 	       ieee80211_is_data(hdr->frame_control);  in ieee80211_is_tx_data()
7671  * ieee80211_set_active_links - set active links in client mode
7682  * If a link is switched off and another is switched on at the same
7683  * time (e.g. active_links going from 0x1 to 0x10) then you will get
7686  *  - change_vif_links(0x11)
7687  *  - unassign_vif_chanctx(link_id=0)
7688  *  - assign_vif_chanctx(link_id=4)
7689  *  - change_sta_links(0x11) for each affected STA (the AP)
7691  *  - remove group keys on the old link (link_id 0)
7692  *  - add new group keys (GTK/IGTK/BIGTK) on the new link (link_id 4)
7693  *  - change_sta_links(0x10) for each affected STA (the AP)
7694  *  - change_vif_links(0x10)
7701  * ieee80211_set_active_links_async - asynchronously set active links
7714  * ieee80211_send_teardown_neg_ttlm - tear down a negotiated TTLM request
7723  * ieee80211_chan_width_to_rx_bw - convert channel width to STA RX bandwidth
7750  * ieee80211_prepare_rx_omi_bw - prepare for sending BW RX OMI
7785  * ieee80211_finalize_rx_omi_bw - finalize BW RX OMI update
7793 /* for older drivers - let's not document these ... */