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61 lines
1.9 KiB
C
61 lines
1.9 KiB
C
/* $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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