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


Based on kernel version 5.9. Page generated on 2020-10-14 09:35 EST.

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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

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_get_rx_led_name

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_get_assoc_led_name

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_get_radio_led_name

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_tpt_blink

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_tpt_led_trigger_flags

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

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_key_conf

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_key_flags

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_get_tkip_p1k

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_get_tkip_p1k_iv

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

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_beacon_get

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_sta_eosp

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_frame_release_type

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_sta_ps_transition

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_sta_ps_transition_ni

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_sta_set_buffered

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

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

Station handling
================

TODO

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

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

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

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

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

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_start_tx_ba_cb_irqsafe

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_stop_tx_ba_session

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_stop_tx_ba_cb_irqsafe

.. kernel-doc:: include/net/mac80211.h
   :functions: ieee80211_rate_control_changed

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

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

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

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

Synchronisation Functions
=========================

TBD

Locking, lots of RCU