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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 <jbenc@suse.cz>
7 * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
8 * Copyright 2013-2014 Intel Mobile Communications GmbH
9 * Copyright (C) 2015 - 2017 Intel Deutschland GmbH
10 * Copyright (C) 2018 - 2020 Intel Corporation
30 * only partial functionality in hard- or firmware. This document
31 * defines the interface between mac80211 and low-level hardware
39 * called in hardware interrupt context. The low-level driver must not call any
41 * call, the low-level driver should first ACK the interrupt and perform the
46 * use the non-IRQ-safe functions!
101 * Intermediate queues (struct ieee80211_txq) are kept per-sta per-tid, with
102 * another per-sta for non-data/non-mgmt and bufferable management frames, and
103 * a single per-vif queue for multicast data frames.
105 * The driver is expected to initialize its private per-queue data for stations
131 * enum ieee80211_max_queues - maximum number of queues
138 IEEE80211_MAX_QUEUE_MAP = BIT(IEEE80211_MAX_QUEUES) - 1,
144 * enum ieee80211_ac_numbers - AC numbers as used in mac80211
158 * struct ieee80211_tx_queue_params - transmit queue configuration
165 * 2^n-1 in the range 1..32767]
169 * @uapsd: is U-APSD mode enabled for the queue
192 * enum ieee80211_chanctx_change - change flag for channel context
209 * struct ieee80211_chanctx_conf - channel context that vifs may be tuned to
211 * This is the driver-visible part. The ieee80211_chanctx
237 * enum ieee80211_chanctx_switch_mode - channel context switch mode
245 * implement this as an on-the-fly chandef switch of the existing
256 * struct ieee80211_vif_chanctx_switch - vif chanctx switch information
274 * enum ieee80211_bss_change - BSS change notification flags
311 * @BSS_CHANGED_MU_GROUPS: VHT MU-MIMO group id or user position changed
370 * enum ieee80211_event_type - event to be notified to the low level driver
386 * enum ieee80211_rssi_event_data - relevant when event type is %RSSI_EVENT
396 * struct ieee80211_rssi_event - data attached to an %RSSI_EVENT
404 * enum ieee80211_mlme_event_data - relevant when event type is %MLME_EVENT
418 * enum ieee80211_mlme_event_status - relevant when event type is %MLME_EVENT
430 * struct ieee80211_mlme_event - data attached to an %MLME_EVENT
442 * struct ieee80211_ba_event - data attached for BlockAck related events
454 * struct ieee80211_event - event to be sent to the driver
471 * struct ieee80211_mu_group_data - STA's VHT MU-MIMO group data
473 * This structure describes the group id data of VHT MU-MIMO
475 * @membership: 64 bits array - a bit is set if station is member of the group
484 * struct ieee80211_ftm_responder_params - FTM responder parameters
499 * struct ieee80211_fils_discovery - FILS discovery parameters from
500 * IEEE Std 802.11ai-2016, Annex C.3 MIB detail.
502 * @min_interval: Minimum packet interval in TUs (0 - 10000)
503 * @max_interval: Maximum packet interval in TUs (0 - 10000)
511 * struct ieee80211_bss_conf - holds the BSS's changing parameters
517 * @multi_sta_back_32bit: supports BA bitmap of 32-bits in Multi-STA BACK
519 * @ack_enabled: indicates support to receive a multi-TID that solicits either
539 * with the %BSS_CHANGED_BEACON_INFO flag, will be non-zero then.
560 * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
563 * @chandef: Channel definition for this BSS -- the hardware might be
565 * @mu_group: VHT MU-MIMO group membership data
586 * @qos: This is a QoS-enabled BSS.
590 * @ps: power-save mode (STA only). This flag is NOT affected by
594 * @hidden_ssid: The SSID of the current vif is hidden. Only valid in AP-mode.
707 * enum mac80211_tx_info_flags - flags to describe transmission information/status
716 * assign sequence numbers to QoS-data frames but cannot do so correctly
717 * for non-QoS-data and management frames because beacons need them from
721 * 802.11-2007 7.1.3.4.1 paragraph 3. This flag will always be set for
728 * @IEEE80211_TX_CTL_AMPDU: this frame should be sent as part of an A-MPDU
749 * off-channel operation.
757 * frame (PS-Poll or uAPSD) or a non-bufferable MMPDU and must
773 * @IEEE80211_TX_CTL_STBC: Enables Space-Time Block Coding (STBC) for this
776 * the off-channel channel when a remain-on-channel offload is done
777 * in hardware -- normal packets still flow and are expected to be
789 * PS-Poll responses.
799 * This flag must not be set for frames that don't request no-ack
844 * enum mac80211_tx_control_flags - flags to describe transmit control
849 * frame (PS-Poll or uAPSD).
851 * @IEEE80211_TX_CTRL_AMSDU: This frame is an A-MSDU frame
863 * These flags are used in tx_info->control.flags.
891 * enum mac80211_rate_control_flags - per-rate flags set by the
898 * @IEEE80211_TX_RC_USE_CTS_PROTECT: CTS-to-self protection is required.
945 * struct ieee80211_tx_rate - rate selection/status
951 * A value of -1 for @idx indicates an invalid rate and, if used
963 * { 3, 2 }, { 2, 2 }, { 1, 4 }, { -1, 0 }, { -1, 0 }
971 * { 3, 2 }, { 2, 2 }, { 1, 1 }, { -1, 0 } ...
988 WARN_ON((nss - 1) & ~0x7); in ieee80211_rate_set_vht()
989 rate->idx = ((nss - 1) << 4) | mcs; in ieee80211_rate_set_vht()
995 return rate->idx & 0xF; in ieee80211_rate_get_vht_mcs()
1001 return (rate->idx >> 4) + 1; in ieee80211_rate_get_vht_nss()
1005 * struct ieee80211_tx_info - skb transmit information
1007 * This structure is placed in skb->cb for three uses:
1008 * (1) mac80211 TX control - mac80211 tells the driver what to do
1010 * (3) TX status information - driver tells mac80211 what happened
1113 * in increments of 4us and clamp the maximum to 2**12-1 in ieee80211_info_set_tx_time_est()
1115 info->tx_time_est = min_t(u16, tx_time_est, 4095) >> 2; in ieee80211_info_set_tx_time_est()
1116 return info->tx_time_est << 2; in ieee80211_info_set_tx_time_est()
1122 return info->tx_time_est << 2; in ieee80211_info_get_tx_time_est()
1126 * struct ieee80211_tx_status - extended tx status info for rate control
1143 * struct ieee80211_scan_ies - descriptors for different blocks of IEs
1164 return (struct ieee80211_tx_info *)skb->cb; in IEEE80211_SKB_CB()
1169 return (struct ieee80211_rx_status *)skb->cb; in IEEE80211_SKB_RXCB()
1173 * ieee80211_tx_info_clear_status - clear TX status
1183 * info->driver_data! Use info->rate_driver_data
1198 info->status.rates[i].count = 0; in ieee80211_tx_info_clear_status()
1202 memset(&info->status.ampdu_ack_len, 0, in ieee80211_tx_info_clear_status()
1203 sizeof(struct ieee80211_tx_info) - in ieee80211_tx_info_clear_status()
1209 * enum mac80211_rx_flags - receive flags
1225 * de-duplication by itself.
1240 * Valid only for data frames (mainly A-MPDU)
1241 * @RX_FLAG_AMPDU_DETAILS: A-MPDU details are known, in particular the reference
1243 * each A-MPDU
1245 * subframes of a single A-MPDU
1246 * @RX_FLAG_AMPDU_IS_LAST: this subframe is the last subframe of the A-MPDU
1261 * @RX_FLAG_AMSDU_MORE: Some drivers may prefer to report separate A-MSDU
1263 * All, but the last MSDU from an A-MSDU should have this flag set. E.g.
1264 * if an A-MSDU has 3 frames, the first 2 must have the flag set, while
1266 * deal with retransmission/duplication recovery properly since A-MSDU
1268 * either regular MSDU or singly A-MSDUs. Subframes must not be
1270 * @RX_FLAG_RADIOTAP_VENDOR_DATA: This frame contains vendor-specific
1271 * radiotap data in the skb->data (before the frame) as described by
1278 * @RX_FLAG_AMPDU_EOF_BIT: Value of the EOF bit in the A-MPDU delimiter for this
1284 * - DATA3_DATA_MCS
1285 * - DATA3_DATA_DCM
1286 * - DATA3_CODING
1287 * - DATA5_GI
1288 * - DATA5_DATA_BW_RU_ALLOC
1289 * - DATA6_NSTS
1290 * - DATA3_STBC
1295 * @RX_FLAG_RADIOTAP_LSIG: L-SIG radiotap data is present
1297 * the "0-length PSDU" field included there. The value for it is
1335 * enum mac80211_rx_encoding_flags - MCS & bandwidth flags
1339 * @RX_ENC_FLAG_HT_GF: This frame was received in a HT-greenfield transmission,
1344 * @RX_ENC_FLAG_STBC_MASK: STBC 2 bit bitmask. 1 - Nss=1, 2 - Nss=2, 3 - Nss=3
1366 * struct ieee80211_rx_status - receive status
1368 * The low-level driver should provide this information (the subset
1372 * @mactime: value in microseconds of the 64-bit Time Synchronization Function
1381 * for data (other) frames - for those it only affects radiotap reporting.
1383 * @signal: signal strength when receiving this frame, either in dBm, in dB or
1388 * @chain_signal: per-chain signal strength, in dBm (unlike @signal, doesn't
1389 * support dB or unspecified units)
1402 * @ampdu_reference: A-MPDU reference number, must be a different value for
1403 * each A-MPDU but the same for each subframe within one A-MPDU
1404 * @ampdu_delimiter_crc: A-MPDU delimiter CRC
1405 * @zero_length_psdu_type: radiotap type of the 0-length PSDU
1432 return MHZ_TO_KHZ(rx_status->freq) + in ieee80211_rx_status_to_khz()
1433 (rx_status->freq_offset ? 500 : 0); in ieee80211_rx_status_to_khz()
1437 * struct ieee80211_vendor_radiotap - vendor radiotap data information
1443 * description itself (which has a fixed 2-byte alignment)
1455 * This struct, including the vendor data, goes into the skb->data before
1470 * enum ieee80211_conf_flags - configuration flags
1474 * @IEEE80211_CONF_MONITOR: there's a monitor interface present -- use this
1478 * This is the power save mode defined by IEEE 802.11-2007 section 11.2,
1501 * enum ieee80211_conf_changed - denotes which configuration changed
1526 * enum ieee80211_smps_mode - spatial multiplexing power save mode
1545 * struct ieee80211_conf - configuration of the device
1555 * @dynamic_ps_timeout: The dynamic powersave timeout (in ms), see the
1593 * struct ieee80211_channel_switch - holds the channel switch data
1598 * @timestamp: value in microseconds of the 64-bit Time Synchronization
1622 * enum ieee80211_vif_flags - virtual interface flags
1627 * monitoring on this virtual interface -- i.e. it can monitor
1630 * @IEEE80211_VIF_SUPPORTS_UAPSD: The device can do U-APSD for this
1647 * enum ieee80211_offload_flags - virtual interface offload flags
1652 * @IEEE80211_OFFLOAD_ENCAP_4ADDR: support 4-address mode encapsulation offload
1661 * struct ieee80211_vif - per-interface data
1671 * interface, i.e. a GO or p2p-sta respectively
1673 * write-protected by sdata_lock and local->mtx so holding either is fine
1675 * @mu_mimo_owner: indicates interface owns MU-MIMO capability
1686 * @cab_queue: content-after-beacon (DTIM beacon really) queue, AP mode only
1688 * when it is not assigned. This pointer is RCU-protected due to the TX
1703 * protected by fq->lock.
1704 * @offload_flags: 802.3 -> 802.11 enapsulation offload flags, see
1741 return vif->type == NL80211_IFTYPE_MESH_POINT; in ieee80211_vif_is_mesh()
1747 * wdev_to_ieee80211_vif - return a vif struct from a wdev
1760 * ieee80211_vif_to_wdev - return a wdev struct from a vif
1773 * enum ieee80211_key_flags - key flags
1800 * fall back to software crypto. Note that this flag deals only with
1832 * struct ieee80211_key_conf - key information
1844 * @keyidx: the key index (0-3)
1846 * @key: key material. For ALG_TKIP the key is encoded as a 256-bit (32 byte)
1848 * - Temporal Encryption Key (128 bits)
1849 * - Temporal Authenticator Tx MIC Key (64 bits)
1850 * - Temporal Authenticator Rx MIC Key (64 bits)
1872 * struct ieee80211_key_seq - key sequence counter
1883 * @hw: data for HW-only (e.g. cipher scheme) keys
1911 * struct ieee80211_cipher_scheme - cipher scheme
1941 * enum set_key_cmd - key command
1954 * enum ieee80211_sta_state - station state
1973 * enum ieee80211_sta_rx_bandwidth - station RX bandwidth
1991 * struct ieee80211_sta_rates - station rate selection table
1995 * Overriding entries per-packet is possible by using cb tx control.
2009 * struct ieee80211_sta_txpwr - station txpower configuration
2027 * struct ieee80211_sta - station table entry
2030 * communicating with. Since stations are RCU-managed in
2066 * A-MSDU. Taken from the Extended Capabilities element. 0 means
2069 * @max_rc_amsdu_len: Maximum A-MSDU size in bytes recommended by rate control.
2070 * @max_tid_amsdu_len: Maximum A-MSDU size in bytes for this TID
2072 * @txq: per-TID data TX queues (if driver uses the TXQ abstraction); note that
2073 * the last entry (%IEEE80211_NUM_TIDS) is used for non-data frames
2098 * indicates the maximal length of an A-MSDU in bytes.
2103 * A-MSDU maximal size is min(max_amsdu_len, 4065) bytes.
2104 * * If the skb is not part of a BA agreement, the A-MSDU maximal
2108 * driver. This is defined by the spec (IEEE 802.11-2012 section
2124 * enum sta_notify_cmd - sta notify command
2137 * struct ieee80211_tx_control - TX control data
2147 * struct ieee80211_txq - Software intermediate tx queue
2150 * @sta: station table entry, %NULL for per-vif queue
2151 * @tid: the TID for this queue (unused for per-vif queue),
2152 * %IEEE80211_NUM_TIDS for non-data (if enabled)
2154 * @drv_priv: driver private area, sized by hw->txq_data_size
2170 * enum ieee80211_hw_flags - hardware flags
2206 * If possible please provide dB or dBm instead.
2218 * Hardware supports 11n A-MPDU aggregation.
2239 * periodic keep-alives to the AP and probing the AP on beacon loss.
2246 * per-station GTKs as used by IBSS RSN or during fast transition. If
2247 * the device doesn't support per-station GTKs, but can be asked not
2259 * @IEEE80211_HW_TX_AMPDU_SETUP_IN_HW: The device handles TX A-MPDU session
2268 * be created. It is expected user-space will create vifs as
2272 * crypto algorithms can be done in software - so don't automatically
2273 * try to fall back to it if hardware crypto fails, but do so only if
2277 * @IEEE80211_HW_SUPPORT_FAST_XMIT: The driver/hardware supports fast-xmit,
2281 * @IEEE80211_HW_QUEUE_CONTROL: The driver wants to control per-interface
2300 * @IEEE80211_HW_CHANCTX_STA_CSA: Support 802.11h based channel-switch (CSA)
2314 * @IEEE80211_HW_SUPPORTS_AMSDU_IN_AMPDU: The driver supports receiving A-MSDUs
2315 * within A-MPDU.
2331 * which implies using per-CPU station statistics.
2334 * A-MSDU frames. Requires software tx queueing and fast-xmit support.
2336 * limit the maximum A-MSDU size based on the current tx rate by setting
2340 * skbs, needed for zero-copy software A-MSDU.
2357 * beacon was heard. This is required in multi-channel scenarios, where the
2363 * support QoS NDP for AP probing - that's most likely a driver bug.
2371 * but if the rate control is built-in then it must be set by the driver.
2374 * @IEEE80211_HW_STA_MMPDU_TXQ: use the extra non-TID per-station TXQ for all
2378 * @IEEE80211_HW_TX_STATUS_NO_AMPDU_LEN: Driver does not report accurate A-MPDU
2388 * A-MPDU sessions active while rekeying with Extended Key ID.
2452 * struct ieee80211_hw - hardware information and state
2506 * sub-frames) to be used for A-MPDU block ack receiver
2519 * @max_tx_fragments: maximum number of tx buffers per (A)-MSDU, sum
2520 * of 1 + skb_shinfo(skb)->nr_frags for each skb in the frag_list.
2537 * @units_pos member is set to a non-negative value then the timestamp
2543 * @radiotap_timestamp.accuracy: If non-negative, fills the accuracy in the
2551 * for each access category if it is uAPSD trigger-enabled and delivery-
2554 * that corresponding AC is both trigger- and delivery-enabled. '0' means
2618 return test_bit(flg, hw->flags); in _ieee80211_hw_check()
2625 return __set_bit(flg, hw->flags); in _ieee80211_hw_set()
2630 * struct ieee80211_scan_request - hw scan request
2643 * struct ieee80211_tdls_ch_sw_params - TDLS channel switch parameters
2645 * @sta: peer this TDLS channel-switch request/response came from
2646 * @chandef: channel referenced in a TDLS channel-switch request
2648 * @status: channel-switch response status
2650 * @switch_time: switch-timing parameter received in the frame
2651 * @switch_timeout: switch-timing parameter received in the frame
2652 * @tmpl_skb: TDLS switch-channel response template
2653 * @ch_sw_tm_ie: offset of the channel-switch timing IE inside @tmpl_skb
2668 * wiphy_to_ieee80211_hw - return a mac80211 driver hw struct from a wiphy
2674 * structure can then access it via hw->priv. Note that mac802111 drivers should
2683 * SET_IEEE80211_DEV - set device for 802.11 hardware
2690 set_wiphy_dev(hw->wiphy, dev); in SET_IEEE80211_DEV()
2694 * SET_IEEE80211_PERM_ADDR - set the permanent MAC address for 802.11 hardware
2701 memcpy(hw->wiphy->perm_addr, addr, ETH_ALEN); in SET_IEEE80211_PERM_ADDR()
2708 if (WARN_ON_ONCE(c->control.rates[0].idx < 0)) in ieee80211_get_tx_rate()
2710 return &hw->wiphy->bands[c->band]->bitrates[c->control.rates[0].idx]; in ieee80211_get_tx_rate()
2717 if (c->control.rts_cts_rate_idx < 0) in ieee80211_get_rts_cts_rate()
2719 return &hw->wiphy->bands[c->band]->bitrates[c->control.rts_cts_rate_idx]; in ieee80211_get_rts_cts_rate()
2726 if (c->control.rates[idx + 1].idx < 0) in ieee80211_get_alt_retry_rate()
2728 return &hw->wiphy->bands[c->band]->bitrates[c->control.rates[idx + 1].idx]; in ieee80211_get_alt_retry_rate()
2732 * ieee80211_free_txskb - free TX skb
2760 * the key is now in use, -%EOPNOTSUPP or -%ENOSPC if it couldn't be
2765 * set, mac80211 will not automatically fall back to software crypto if
2796 * when they are able to replace in-use PTK keys according to the following
2802 at the time of the key deletion (including re-transmits),
2824 * IEEE 802.11-2007 section 11.2 is enabled. This is not to be confused
2842 * hardware stays awake for a user-specified period of time after sending a
2859 * Driver informs U-APSD client support by enabling
2863 * utilize U-APSD, dynamic powersave is disabled for voip AC and all frames
2866 * Note: U-APSD client mode is not yet supported with
2897 * - a list of information element IDs
2898 * - a list of OUIs for the vendor information element
2912 * the various vendor-assigned IEs with unknown contents (128, 129, 133-136,
2936 * and rationale, please refer to 802.11 (as amended by 802.11n-2009)
3000 * client powersaving, both "legacy" PS (PS-Poll/null data) and uAPSD.
3004 * will not poll with PS-Poll and trigger with uAPSD at the same time.
3015 * handle PS-Poll/uAPSD.
3029 * it can PS-Poll, or it can possibly start a uAPSD service period.
3032 * the station sends a PS-Poll or a uAPSD trigger frame, mac80211
3037 * response to a PS-Poll) also has %IEEE80211_TX_STATUS_EOSP set to
3043 * Additionally, non-bufferable MMPDUs can also be transmitted by
3051 * transmitted to a certain station is out-of-band communication to
3069 * there is more data on other TIDs -- the TIDs to release frames
3074 * shorten service periods (or abort PS-Poll responses), it must
3076 * are buffered in the driver -- those must remain buffered to avoid
3087 * Note that if the driver ever buffers frames other than QoS-data
3088 * frames, it must take care to never send a non-QoS-data frame as
3089 * the last frame in a service period, adding a QoS-nulldata frame
3090 * after a non-QoS-data frame if needed.
3097 * assignment of per-interface AC software queues to hardware queues. This
3099 * 1) off-channel transmissions might get stuck behind other frames
3101 * 3) after-DTIM frames could get stuck behind other frames
3125 * after-DTIM queue for AP: 8
3126 * off-channel queue: 9
3137 * and the second virtual interface with 4-7.
3149 * enum ieee80211_filter_flags - hardware filter flags
3196 * enum ieee80211_ampdu_mlme_action - A-MPDU actions
3241 * struct ieee80211_ampdu_params - AMPDU action parameters
3252 * @amsdu: indicates the peer's ability to receive A-MSDU within A-MPDU.
3268 * enum ieee80211_frame_release_type - frame release reason
3269 * @IEEE80211_FRAME_RELEASE_PSPOLL: frame released for PS-Poll
3271 * frame received on trigger-enabled AC
3279 * enum ieee80211_rate_control_changed - flags to indicate what changed
3283 * information -- for HT20/40 the IEEE80211_HT_CAP_SUP_WIDTH_20_40
3300 * enum ieee80211_roc_type - remain on channel type
3318 * enum ieee80211_reconfig_type - reconfig type
3334 * struct ieee80211_ops - callbacks from mac80211 to the driver
3342 * The low-level driver should send the frame out based on
3353 * to avoid acknowledging frames before a non-monitor device
3462 * offloading. The index can be 0-3, or -1 for unsetting it.
3471 * at all but just send them after the SSID -- mac80211 includes the
3483 * @cancel_hw_scan: Ask the low-level tp cancel the active hw scan.
3488 * scan_work after the low-level driver was already suspended.
3510 * @get_stats: Return low-level statistics.
3557 * isn't safe to use the pointer, not even RCU protected - no RCU grace
3582 * let the driver pre-fill the statistics. The driver can fill most of
3584 * all of them make sense - see the source for which ones are possible.
3618 * Returns non-zero if this device sent the last beacon.
3621 * @get_survey: Return per-channel survey information
3624 * need to set wiphy->rfkill_poll to %true before registration,
3629 * in IEEE 802.11-2007 section 17.3.8.6 and modify ACK timeout
3630 * accordingly; coverage class equals to -1 to enable ACK timeout
3653 * reject TX/RX mask combinations they cannot support by returning -EINVAL
3658 * @remain_on_channel: Starts an off-channel period on the given channel, must
3661 * offload. Frames to transmit on the off-channel channel are transmitted
3663 * duration (which will always be non-zero) expires, the driver must call
3668 * @cancel_remain_on_channel: Requests that an ongoing off-channel period is
3671 * @set_ringparam: Set tx and rx ring sizes.
3673 * @get_ringparam: Get tx and rx ring current and maximum sizes.
3688 * to release some frames, either for PS-poll or uAPSD.
3691 * the frames being released then it must still set the more-data bit in
3693 * more-data bit must always be set.
3695 * from, for PS-poll it will always have only a single bit set.
3696 * In the case this is used for a PS-poll initiated release, the
3699 * on the TX status (and must report TX status) so that the PS-poll
3701 * responses for a retried PS-poll frame.
3724 * @get_et_sset_count: Ethtool API to get string-set count.
3729 * and perhaps other supported types of ethtool data-sets.
3732 * before associated. In multi-channel scenarios, a virtual interface is
3750 * a TDLS discovery-request, we expect a reply to arrive on the AP's
3752 * setup-response is a direct packet not buffered by the AP.
3754 * discovery-request. The recommended period of protection is at least
3808 * gets a CSA or a userspace initiated channel-switch), allowing
3831 * @tdls_channel_switch: Start channel-switching with a TDLS peer. The driver
3832 * is responsible for continually initiating channel-switching operations
3834 * driver receives a channel-switch request template and the location of
3835 * the switch-timing IE within the template as part of the invocation.
3837 * optionally copy the skb for further re-use.
3838 * @tdls_cancel_channel_switch: Stop channel-switching with a TDLS peer. Both
3840 * @tdls_recv_channel_switch: a TDLS channel-switch related frame (request or
3843 * an ongoing channel-switch operation. In addition, a channel-switch
3845 * switch-timing IE within the template. The skb can only be used within
3869 * aggregating two specific frames in the same A-MSDU. The relation
3871 * skb is always a real frame, head may or may not be an A-MSDU.
3883 * 4-address mode
4005 * Perform a certain A-MPDU action.
4015 * - ``TX: 1.....7``
4016 * - ``RX: 2....7`` (lost frame #1)
4017 * - ``TX: 8..1...``
4019 * which is invalid since #1 was now re-transmitted well past the
4022 * - ``TX: 1 or``
4023 * - ``TX: 18 or``
4024 * - ``TX: 81``
4202 * ieee80211_alloc_hw_nm - Allocate a new hardware device
4222 * ieee80211_alloc_hw - Allocate a new hardware device
4243 * ieee80211_register_hw - Register hardware device
4256 * struct ieee80211_tpt_blink - throughput blink description
4267 * enum ieee80211_tpt_led_trigger_flags - throughput trigger flags
4291 * ieee80211_get_tx_led_name - get name of TX LED
4312 * ieee80211_get_rx_led_name - get name of RX LED
4333 * ieee80211_get_assoc_led_name - get name of association LED
4354 * ieee80211_get_radio_led_name - get name of radio LED
4375 * ieee80211_create_tpt_led_trigger - create throughput LED trigger
4378 * @blink_table: the blink table -- needs to be ordered by throughput
4400 * ieee80211_unregister_hw - Unregister a hardware device
4410 * ieee80211_free_hw - free hardware descriptor
4421 * ieee80211_restart_hw - restart hardware completely
4427 * calling the ->start() operation. The driver will need to reset all
4435 * ieee80211_rx_list - receive frame and store processed skbs in a list
4460 * ieee80211_rx_napi - receive frame from NAPI context
4485 * ieee80211_rx - receive frame
4510 * ieee80211_rx_irqsafe - receive frame
4525 * ieee80211_rx_ni - receive frame (in process context)
4546 * ieee80211_sta_ps_transition - PS transition for connected sta
4560 * Return: 0 on success. -EINVAL when the requested PS mode is already set.
4565 * ieee80211_sta_ps_transition_ni - PS transition for connected sta
4590 * ieee80211_sta_pspoll - PS-Poll frame received
4594 * use this function to inform mac80211 that a PS-Poll frame from a
4603 * ieee80211_sta_uapsd_trigger - (potential) U-APSD trigger frame received
4627 * ieee80211_sta_set_buffered - inform mac80211 about driver-buffered frames
4641 * If all frames are released to the station (due to PS-poll or uAPSD)
4658 * ieee80211_get_tx_rates - get the selected transmit rates for a packet
4660 * Call this function in a driver with per-packet rate selection support
4677 * ieee80211_sta_set_expected_throughput - set the expected tpt for a station
4693 * ieee80211_tx_rate_update - transmit rate update callback
4695 * Drivers should call this functions with a non-NULL pub sta
4708 * ieee80211_tx_status - transmit status callback
4727 * ieee80211_tx_status_ext - extended transmit status callback
4744 * ieee80211_tx_status_noskb - transmit status callback without skb
4772 * ieee80211_tx_status_ni - transmit status callback (in process context)
4792 * ieee80211_tx_status_irqsafe - IRQ-safe transmit status callback
4807 * ieee80211_tx_status_8023 - transmit status callback for 802.3 frame format
4827 * ieee80211_report_low_ack - report non-responding station
4829 * When operating in AP-mode, call this function to report a non-responding
4832 * @sta: the non-responding connected sta
4840 * struct ieee80211_mutable_offsets - mutable beacon offsets
4855 * ieee80211_beacon_get_template - beacon template generation function
4879 * ieee80211_beacon_get_tim - beacon generation function
4883 * Set to 0 if invalid (in non-AP modes).
4886 * Set to 0 if invalid (in non-AP modes).
4893 * frame from mac80211 -- it is responsible for calling this function exactly
4905 * ieee80211_beacon_get - beacon generation function
4920 * ieee80211_beacon_update_cntdwn - request mac80211 to decrement the beacon countdown
4934 * ieee80211_beacon_set_cntdwn - request mac80211 to set beacon countdown
4947 * ieee80211_csa_finish - notify mac80211 about channel switch
4957 * ieee80211_beacon_cntdwn_is_complete - find out if countdown reached 1
4965 * ieee80211_proberesp_get - retrieve a Probe Response template
4980 * ieee80211_pspoll_get - retrieve a PS Poll template
4997 * ieee80211_nullfunc_get - retrieve a nullfunc template
5020 * ieee80211_probereq_get - retrieve a Probe Request template
5038 * ieee80211_rts_get - RTS frame generation function
5047 * hardware/firmware), the low-level driver uses this function to receive
5048 * the next RTS frame from the 802.11 code. The low-level is responsible
5057 * ieee80211_rts_duration - Get the duration field for an RTS frame
5064 * the duration field, the low-level driver uses this function to receive
5065 * the duration field value in little-endian byteorder.
5074 * ieee80211_ctstoself_get - CTS-to-self frame generation function
5077 * @frame: pointer to the frame that is going to be protected by the CTS-to-self.
5080 * @cts: The buffer where to store the CTS-to-self frame.
5082 * If the CTS-to-self frames are generated by the host system (i.e., not in
5083 * hardware/firmware), the low-level driver uses this function to receive
5084 * the next CTS-to-self frame from the 802.11 code. The low-level is responsible
5085 * for calling this function before and CTS-to-self frame is needed.
5094 * ieee80211_ctstoself_duration - Get the duration field for a CTS-to-self frame
5097 * @frame_len: the length of the frame that is going to be protected by the CTS-to-self.
5100 * If the CTS-to-self is generated in firmware, but the host system must provide
5101 * the duration field, the low-level driver uses this function to receive
5102 * the duration field value in little-endian byteorder.
5112 * ieee80211_generic_frame_duration - Calculate the duration field for a frame
5131 * ieee80211_get_buffered_bc - accessing buffered broadcast and multicast frames
5138 * memory. The low-level driver uses this function to fetch next buffered
5145 * generated with ieee80211_beacon_get() and the low-level driver must thus
5147 * NULL if the previous generated beacon was not DTIM, so the low-level driver
5155 * ieee80211_get_tkip_p1k_iv - get a TKIP phase 1 key for IV32
5167 * ieee80211_get_tkip_p1k - get a TKIP phase 1 key
5180 struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; in ieee80211_get_tkip_p1k()
5181 const u8 *data = (u8 *)hdr + ieee80211_hdrlen(hdr->frame_control); in ieee80211_get_tkip_p1k()
5188 * ieee80211_get_tkip_rx_p1k - get a TKIP phase 1 key for RX
5202 * ieee80211_get_tkip_p2k - get a TKIP phase 2 key
5216 * ieee80211_tkip_add_iv - write TKIP IV and Ext. IV to pos
5231 * ieee80211_get_key_rx_seq - get key RX sequence counter
5234 * @tid: The TID, or -1 for the management frame value (CCMP/GCMP only);
5235 * the value on TID 0 is also used for non-QoS frames. For
5250 * ieee80211_set_key_rx_seq - set key RX sequence counter
5253 * @tid: The TID, or -1 for the management frame value (CCMP/GCMP only);
5254 * the value on TID 0 is also used for non-QoS frames. For
5270 * ieee80211_remove_key - remove the given key
5283 * ieee80211_gtk_rekey_add - add a GTK key from rekeying during WoWLAN
5293 * mac80211-owned memory. In case of errors, the function returns an
5316 * ieee80211_gtk_rekey_notify - notify userspace supplicant of rekeying
5326 * ieee80211_wake_queue - wake specific queue
5335 * ieee80211_stop_queue - stop specific queue
5344 * ieee80211_queue_stopped - test status of the queue
5356 * ieee80211_stop_queues - stop all queues
5364 * ieee80211_wake_queues - wake all queues
5372 * ieee80211_scan_completed - completed hardware scan
5386 * ieee80211_sched_scan_results - got results from scheduled scan
5396 * ieee80211_sched_scan_stopped - inform that the scheduled scan has stopped
5408 * enum ieee80211_interface_iteration_flags - interface iteration flags
5413 * haven't been re-added to the driver yet.
5415 * interfaces, even if they haven't been re-added to the driver yet.
5429 * ieee80211_iterate_interfaces - iterate interfaces
5447 * ieee80211_iterate_active_interfaces - iterate active interfaces
5473 * ieee80211_iterate_active_interfaces_atomic - iterate active interfaces
5494 * ieee80211_iterate_active_interfaces_rtnl - iterate active interfaces
5513 * ieee80211_iterate_stations_atomic - iterate stations
5529 * ieee80211_queue_work - add work onto the mac80211 workqueue
5540 * ieee80211_queue_delayed_work - add work onto the mac80211 workqueue
5554 * ieee80211_start_tx_ba_session - Start a tx Block Ack session.
5569 * ieee80211_start_tx_ba_cb_irqsafe - low level driver ready to aggregate.
5582 * ieee80211_stop_tx_ba_session - Stop a Block Ack session.
5595 * ieee80211_stop_tx_ba_cb_irqsafe - low level driver ready to stop aggregate.
5608 * ieee80211_find_sta - find a station
5622 * ieee80211_find_sta_by_ifaddr - find a station on hardware
5626 * @localaddr: local address (vif->sdata->vif.addr). Use NULL for 'any'.
5648 * ieee80211_sta_block_awake - block station from waking up
5659 * This function allows implementing this mode in a race-free
5669 * cause mac80211 to be able to send ps-poll responses, and if
5680 * ieee80211_sta_eosp - notify mac80211 about end of SP
5686 * This applies for PS-Poll as well as uAPSD.
5689 * not mix calls to irqsafe/non-irqsafe versions, this function
5691 * all non-irqsafe, don't mix!
5701 * ieee80211_send_eosp_nullfunc - ask mac80211 to send NDP with EOSP
5714 * will be sent despite the station being in power-save.
5723 * ieee80211_sta_register_airtime - register airtime usage for a sta/tid
5751 * ieee80211_txq_airtime_check - check if a txq can send frame to device
5763 * ieee80211_iter_keys - iterate keys programmed into the device
5790 * ieee80211_iter_keys_rcu - iterate keys programmed into the device
5814 * ieee80211_iter_chan_contexts_atomic - iterate channel contexts
5829 * found while iterating, whether they've been re-added already
5840 * ieee80211_ap_probereq_get - retrieve a Probe Request template
5857 * ieee80211_beacon_loss - inform hardware does not receive beacons
5868 * ieee80211_connection_loss - inform hardware has lost connection to the AP
5884 * ieee80211_resume_disconnect - disconnect from AP after resume
5907 * ieee80211_cqm_rssi_notify - inform a configured connection quality monitoring
5925 * ieee80211_cqm_beacon_loss_notify - inform CQM of beacon loss
5933 * ieee80211_radar_detected - inform that a radar was detected
5940 * ieee80211_chswitch_done - Complete channel switch process
5944 * Complete the channel switch post-process: set the new operational channel
5950 * ieee80211_request_smps - request SM PS transition
5962 * ieee80211_ready_on_channel - notification of remain-on-channel start
5968 * ieee80211_remain_on_channel_expired - remain_on_channel duration expired
5974 * ieee80211_stop_rx_ba_session - callback to stop existing BA sessions
5981 * therefore prevent the peer device to use a-mpdu aggregation.
5991 * ieee80211_mark_rx_ba_filtered_frames - move RX BA window and mark filtered
6009 * ieee80211_send_bar - send a BlockAckReq frame
6022 * ieee80211_manage_rx_ba_offl - helper to queue an RX BA work
6031 * ieee80211_start_rx_ba_session_offl - start a Rx BA session
6053 * ieee80211_stop_rx_ba_session_offl - stop a Rx BA session
6075 * ieee80211_rx_ba_timer_expired - stop a Rx BA session due to timeout
6092 * struct ieee80211_tx_rate_control - rate control information for/from RC algo
6104 * @short_preamble: whether mac80211 will request short-preamble transmission
6106 * @rate_idx_mask: user-requested (legacy) rate mask
6107 * @rate_idx_mcs_mask: user-requested MCS rate mask (NULL if not in use)
6123 * enum rate_control_capabilities - rate control capabilities
6174 return (sta == NULL || sta->supp_rates[band] & BIT(index)); in rate_supported()
6183 for (i = 0; i < sband->n_bitrates; i++) in rate_lowest_index()
6184 if (rate_supported(sta, sband->band, i)) in rate_lowest_index()
6200 for (i = 0; i < sband->n_bitrates; i++) in rate_usable_index_exists()
6201 if (rate_supported(sta, sband->band, i)) in rate_usable_index_exists()
6207 * rate_control_set_rates - pass the sta rate selection to mac80211/driver
6228 return conf->chandef.width == NL80211_CHAN_WIDTH_20; in conf_is_ht20()
6234 return conf->chandef.width == NL80211_CHAN_WIDTH_40 && in conf_is_ht40_minus()
6235 conf->chandef.center_freq1 < conf->chandef.chan->center_freq; in conf_is_ht40_minus()
6241 return conf->chandef.width == NL80211_CHAN_WIDTH_40 && in conf_is_ht40_plus()
6242 conf->chandef.center_freq1 > conf->chandef.chan->center_freq; in conf_is_ht40_plus()
6248 return conf->chandef.width == NL80211_CHAN_WIDTH_40; in conf_is_ht40()
6254 return (conf->chandef.width != NL80211_CHAN_WIDTH_5) && in conf_is_ht()
6255 (conf->chandef.width != NL80211_CHAN_WIDTH_10) && in conf_is_ht()
6256 (conf->chandef.width != NL80211_CHAN_WIDTH_20_NOHT); in conf_is_ht()
6278 return ieee80211_iftype_p2p(vif->type, vif->p2p); in ieee80211_vif_type_p2p()
6282 * ieee80211_update_mu_groups - set the VHT MU-MIMO groud data
6285 * @membership: 64 bits array - a bit is set if station is member of the group
6303 * ieee80211_ave_rssi - report the average RSSI for the specified interface
6315 * ieee80211_report_wowlan_wakeup - report WoWLAN wakeup
6327 * ieee80211_tx_prepare_skb - prepare an 802.11 skb for transmission
6341 * ieee80211_parse_tx_radiotap - Sanity-check and parse the radiotap header
6355 * struct ieee80211_noa_data - holds temporary data for tracking P2P NoA state
6382 * ieee80211_parse_p2p_noa - initialize NoA tracking data from P2P IE
6394 * ieee80211_update_p2p_noa - get next pending P2P GO absent state change
6402 * ieee80211_tdls_oper_request - request userspace to perform a TDLS operation
6416 * ieee80211_reserve_tid - request to reserve a specific TID
6437 * ieee80211_unreserve_tid - request to unreserve a specific TID
6453 * ieee80211_tx_dequeue - dequeue a packet from a software tx queue
6463 * skb->cb, e.g. the key pointer, are protected by RCU and thus the
6476 * ieee80211_tx_dequeue_ni - dequeue a packet from a software tx queue
6499 * ieee80211_next_txq - get next tx queue to pull packets from
6511 * ieee80211_txq_schedule_start - start new scheduling round for TXQs
6530 * ieee80211_schedule_txq - schedule a TXQ for transmission
6548 * ieee80211_return_txq - return a TXQ previously acquired by ieee80211_next_txq()
6565 * ieee80211_txq_may_transmit - check whether TXQ is allowed to transmit
6579 * aligned against driver's own round-robin scheduler list. i.e it rotates
6592 * ieee80211_txq_get_depth - get pending frame/byte count of given txq
6595 * txq state can change half-way of this function and the caller may end up
6596 * with "new" frame_cnt and "old" byte_cnt or vice-versa.
6607 * ieee80211_nan_func_terminated - notify about NAN function termination.
6623 * ieee80211_nan_func_match - notify about NAN function match event.
6638 * ieee80211_calc_rx_airtime - calculate estimated transmission airtime for RX.
6653 * ieee80211_calc_tx_airtime - calculate estimated transmission airtime for TX.
6666 * ieee80211_set_hw_80211_encap - enable hardware encapsulation offloading.
6678 * ieee80211_get_fils_discovery_tmpl - Get FILS discovery template.
6690 * ieee80211_get_unsol_bcast_probe_resp_tmpl - Get unsolicited broadcast