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mac80211 subsystem (advanced)

Documentation/driver-api/80211/mac80211-advanced.rst

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============================= mac80211 subsystem (advanced)

Information contained within this part of the book is of interest only for advanced interaction of mac80211 with drivers to exploit more hardware capabilities and improve performance.

LED support

Mac80211 supports various ways of blinking LEDs. Wherever possible, device LEDs should be exposed as LED class devices and hooked up to the appropriate trigger, which will then be triggered appropriately by mac80211.

.. kernel-doc:: include/net/mac80211.h :functions: ieee80211_get_tx_led_name ieee80211_get_rx_led_name ieee80211_get_assoc_led_name ieee80211_get_radio_led_name ieee80211_tpt_blink ieee80211_tpt_led_trigger_flags ieee80211_create_tpt_led_trigger

Hardware crypto acceleration

.. kernel-doc:: include/net/mac80211.h :doc: Hardware crypto acceleration

.. kernel-doc:: include/net/mac80211.h :functions: set_key_cmd ieee80211_key_conf ieee80211_key_flags ieee80211_get_tkip_p1k ieee80211_get_tkip_p1k_iv ieee80211_get_tkip_p2k

Powersave support

.. kernel-doc:: include/net/mac80211.h :doc: Powersave support

Beacon filter support

.. kernel-doc:: include/net/mac80211.h :doc: Beacon filter support

.. kernel-doc:: include/net/mac80211.h :functions: ieee80211_beacon_loss

Multiple queues and QoS support

TBD

.. kernel-doc:: include/net/mac80211.h :functions: ieee80211_tx_queue_params

Access point mode support

TBD

Some parts of the if_conf should be discussed here instead

Insert notes about VLAN interfaces with hw crypto here or in the hw crypto chapter.

support for powersaving clients

.. kernel-doc:: include/net/mac80211.h :doc: AP support for powersaving clients

.. kernel-doc:: include/net/mac80211.h :functions: ieee80211_get_buffered_bc ieee80211_beacon_get ieee80211_sta_eosp ieee80211_frame_release_type ieee80211_sta_ps_transition ieee80211_sta_ps_transition_ni ieee80211_sta_set_buffered ieee80211_sta_block_awake

Supporting multiple virtual interfaces

TBD

Note: WDS with identical MAC address should almost always be OK

Insert notes about having multiple virtual interfaces with different MAC addresses here, note which configurations are supported by mac80211, add notes about supporting hw crypto with it.

.. kernel-doc:: include/net/mac80211.h :functions: ieee80211_iterate_active_interfaces ieee80211_iterate_active_interfaces_atomic

Station handling

TODO

.. kernel-doc:: include/net/mac80211.h :functions: ieee80211_sta sta_notify_cmd ieee80211_find_sta ieee80211_find_sta_by_ifaddr

Hardware scan offload

TBD

.. kernel-doc:: include/net/mac80211.h :functions: ieee80211_scan_completed

Aggregation

TX A-MPDU aggregation

.. kernel-doc:: net/mac80211/agg-tx.c :doc: TX A-MPDU aggregation

.. WARNING: DOCPROC directive not supported: !Cnet/mac80211/agg-tx.c

RX A-MPDU aggregation

.. kernel-doc:: net/mac80211/agg-rx.c :doc: RX A-MPDU aggregation

.. WARNING: DOCPROC directive not supported: !Cnet/mac80211/agg-rx.c

.. kernel-doc:: include/net/mac80211.h :functions: ieee80211_ampdu_mlme_action

Spatial Multiplexing Powersave (SMPS)

.. kernel-doc:: include/net/mac80211.h :doc: Spatial multiplexing power save

.. kernel-doc:: include/net/mac80211.h :functions: ieee80211_request_smps ieee80211_smps_mode

TBD

This part of the book describes the rate control algorithm interface and how it relates to mac80211 and drivers.

Rate Control API

TBD

.. kernel-doc:: include/net/mac80211.h :functions: ieee80211_start_tx_ba_session ieee80211_start_tx_ba_cb_irqsafe ieee80211_stop_tx_ba_session ieee80211_stop_tx_ba_cb_irqsafe ieee80211_rate_control_changed ieee80211_tx_rate_control

TBD

This part of the book describes mac80211 internals.

Key handling

Key handling basics

.. kernel-doc:: net/mac80211/key.c :doc: Key handling basics

MORE TBD

TBD

Receive processing

TBD

Transmit processing

TBD

Station info handling

Programming information

.. kernel-doc:: net/mac80211/sta_info.h :functions: sta_info ieee80211_sta_info_flags

STA information lifetime rules

.. kernel-doc:: net/mac80211/sta_info.c :doc: STA information lifetime rules

Aggregation Functions

.. kernel-doc:: net/mac80211/sta_info.h :functions: sta_ampdu_mlme tid_ampdu_tx tid_ampdu_rx

Synchronisation Functions

TBD

Locking, lots of RCU