69bf804b50
This framework allows drivers to abstract the rate control algorithm and just feed the framework with the usable parameters. The rate control framework will now deal with passing the parameters to the selected algorithm. Right now we have AMRR (the default) and RSSADAPT but there's no way to select one with ifconfig, yet. The objective is to have more rate control algorithms in the net80211 stack so all drivers[0] can use it. Ideally, we'll have the well-known sample rate control algorithm in the net80211 at some point so all drivers can use it (not just ath). [0] all drivers that do rate control in software, that is. Reviewed by: bschmidt, thompsa, weyongo MFC after: 1 months
62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
/* $FreeBSD$ */
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/* $OpenBSD: ieee80211_amrr.h,v 1.3 2006/06/17 19:34:31 damien Exp $ */
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/*-
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* Copyright (c) 2006
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* Damien Bergamini <damien.bergamini@free.fr>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef _NET80211_IEEE80211_AMRR_H_
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#define _NET80211_IEEE80211_AMRR_H_
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/*-
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* Naive implementation of the Adaptive Multi Rate Retry algorithm:
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*
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* "IEEE 802.11 Rate Adaptation: A Practical Approach"
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* Mathieu Lacage, Hossein Manshaei, Thierry Turletti
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* INRIA Sophia - Projet Planete
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* http://www-sop.inria.fr/rapports/sophia/RR-5208.html
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*/
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/*
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* Rate control settings.
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*/
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struct ieee80211vap;
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struct ieee80211_amrr {
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u_int amrr_min_success_threshold;
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u_int amrr_max_success_threshold;
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int amrr_interval; /* update interval (ticks) */
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};
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#define IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD 1
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#define IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD 15
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/*
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* Rate control state for a given node.
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*/
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struct ieee80211_amrr_node {
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struct ieee80211_amrr *amn_amrr;/* backpointer */
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int amn_rix; /* current rate index */
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int amn_ticks; /* time of last update */
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/* statistics */
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u_int amn_txcnt;
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u_int amn_success;
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u_int amn_success_threshold;
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u_int amn_recovery;
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u_int amn_retrycnt;
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};
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#endif /* _NET80211_IEEE80211_AMRR_H_ */
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