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Annotation of sys/net80211/ieee80211_amrr.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: ieee80211_amrr.h,v 1.4 2007/06/16 13:17:05 damien Exp $       */
                      2:
                      3: /*-
                      4:  * Copyright (c) 2006
                      5:  *     Damien Bergamini <damien.bergamini@free.fr>
                      6:  *
                      7:  * Permission to use, copy, modify, and distribute this software for any
                      8:  * purpose with or without fee is hereby granted, provided that the above
                      9:  * copyright notice and this permission notice appear in all copies.
                     10:  *
                     11:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
                     12:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
                     13:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
                     14:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     15:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     16:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     17:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
                     18:  */
                     19: #ifndef _NET80211_IEEE80211_AMRR_H_
                     20: #define _NET80211_IEEE80211_AMRR_H_
                     21:
                     22: /*-
                     23:  * Naive implementation of the Adaptive Multi Rate Retry algorithm:
                     24:  *
                     25:  * "IEEE 802.11 Rate Adaptation: A Practical Approach"
                     26:  *  Mathieu Lacage, Hossein Manshaei, Thierry Turletti
                     27:  *  INRIA Sophia - Projet Planete
                     28:  *  http://www-sop.inria.fr/rapports/sophia/RR-5208.html
                     29:  */
                     30:
                     31: /*
                     32:  * Rate control settings.
                     33:  */
                     34: struct ieee80211_amrr {
                     35:        u_int   amrr_min_success_threshold;
                     36:        u_int   amrr_max_success_threshold;
                     37: };
                     38:
                     39: #define IEEE80211_AMRR_MIN_SUCCESS_THRESHOLD    1
                     40: #define IEEE80211_AMRR_MAX_SUCCESS_THRESHOLD   15
                     41:
                     42: /*
                     43:  * Rate control state for a given node.
                     44:  */
                     45: struct ieee80211_amrr_node {
                     46:        u_int   amn_success;
                     47:        u_int   amn_recovery;
                     48:        u_int   amn_success_threshold;
                     49:        u_int   amn_txcnt;
                     50:        u_int   amn_retrycnt;
                     51: };
                     52:
                     53: void   ieee80211_amrr_node_init(const struct ieee80211_amrr *,
                     54:            struct ieee80211_amrr_node *);
                     55: void   ieee80211_amrr_choose(struct ieee80211_amrr *, struct ieee80211_node *,
                     56:            struct ieee80211_amrr_node *);
                     57:
                     58: #endif /* _NET80211_IEEE80211_AMRR_H_ */