ieee80211_rssadapt.h revision 1.9.18.2
1 1.9.18.2 phil /* $NetBSD: ieee80211_rssadapt.h,v 1.9.18.2 2018/06/28 21:23:01 phil Exp $ */ 2 1.9.18.2 phil 3 1.1 dyoung /*- 4 1.9.18.1 phil * SPDX-License-Identifier: BSD-3-Clause 5 1.9.18.1 phil * 6 1.1 dyoung * Copyright (c) 2003, 2004 David Young. All rights reserved. 7 1.1 dyoung * 8 1.1 dyoung * Redistribution and use in source and binary forms, with or 9 1.1 dyoung * without modification, are permitted provided that the following 10 1.1 dyoung * conditions are met: 11 1.1 dyoung * 1. Redistributions of source code must retain the above copyright 12 1.1 dyoung * notice, this list of conditions and the following disclaimer. 13 1.1 dyoung * 2. Redistributions in binary form must reproduce the above 14 1.1 dyoung * copyright notice, this list of conditions and the following 15 1.1 dyoung * disclaimer in the documentation and/or other materials provided 16 1.1 dyoung * with the distribution. 17 1.9.18.1 phil * 3. The name of David Young may not be used to endorse or promote 18 1.9.18.1 phil * products derived from this software without specific prior 19 1.9.18.1 phil * written permission. 20 1.1 dyoung * 21 1.1 dyoung * THIS SOFTWARE IS PROVIDED BY David Young ``AS IS'' AND ANY 22 1.1 dyoung * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 23 1.1 dyoung * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 24 1.1 dyoung * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL David 25 1.1 dyoung * Young BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 26 1.1 dyoung * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 27 1.1 dyoung * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 1.1 dyoung * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 29 1.1 dyoung * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 1.1 dyoung * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 1.1 dyoung * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 32 1.1 dyoung * OF SUCH DAMAGE. 33 1.1 dyoung */ 34 1.6 elad #ifndef _NET80211_IEEE80211_RSSADAPT_H_ 35 1.6 elad #define _NET80211_IEEE80211_RSSADAPT_H_ 36 1.6 elad 37 1.1 dyoung /* Data-rate adaptation loosely based on "Link Adaptation Strategy 38 1.1 dyoung * for IEEE 802.11 WLAN via Received Signal Strength Measurement" 39 1.1 dyoung * by Javier del Prado Pavon and Sunghyun Choi. 40 1.4 perry */ 41 1.1 dyoung 42 1.1 dyoung /* Buckets for frames 0-128 bytes long, 129-1024, 1025-maximum. */ 43 1.1 dyoung #define IEEE80211_RSSADAPT_BKTS 3 44 1.1 dyoung #define IEEE80211_RSSADAPT_BKT0 128 45 1.4 perry #define IEEE80211_RSSADAPT_BKTPOWER 3 /* 2**_BKTPOWER */ 46 1.1 dyoung 47 1.9.18.1 phil struct ieee80211_rssadapt { 48 1.9.18.1 phil const struct ieee80211vap *vap; 49 1.9.18.1 phil int interval; /* update interval (ticks) */ 50 1.2 dyoung }; 51 1.2 dyoung 52 1.9.18.1 phil struct ieee80211_rssadapt_node { 53 1.9.18.1 phil struct ieee80211_rssadapt *ra_rs; /* backpointer */ 54 1.9.18.1 phil struct ieee80211_rateset ra_rates; /* negotiated rates */ 55 1.9.18.1 phil int ra_rix; /* current rate index */ 56 1.9.18.1 phil int ra_ticks; /* time of last update */ 57 1.9.18.1 phil int ra_last_raise; /* time of last rate raise */ 58 1.9.18.1 phil int ra_raise_interval; /* rate raise time threshold */ 59 1.9.18.1 phil 60 1.1 dyoung /* Tx failures in this update interval */ 61 1.9.18.1 phil uint32_t ra_nfail; 62 1.1 dyoung /* Tx successes in this update interval */ 63 1.9.18.1 phil uint32_t ra_nok; 64 1.1 dyoung /* exponential average packets/second */ 65 1.9.18.1 phil uint32_t ra_pktrate; 66 1.1 dyoung /* RSSI threshold for each Tx rate */ 67 1.9.18.1 phil uint16_t ra_rate_thresh[IEEE80211_RSSADAPT_BKTS] 68 1.1 dyoung [IEEE80211_RATE_SIZE]; 69 1.1 dyoung }; 70 1.1 dyoung 71 1.9.18.1 phil #define IEEE80211_RSSADAPT_SUCCESS 1 72 1.9.18.1 phil #define IEEE80211_RSSADAPT_FAILURE 0 73 1.9.18.1 phil #endif /* _NET80211_IEEE80211_RSSADAPT_H_ */ 74
Indexes created Thu Oct 02 07:10:07 GMT 2025