78a6b08618
Mainly focus on files that use BSD 2-Clause license, however the tool I was using misidentified many licenses so this was mostly a manual - error prone - task. The Software Package Data Exchange (SPDX) group provides a specification to make it easier for automated tools to detect and summarize well known opensource licenses. We are gradually adopting the specification, noting that the tags are considered only advisory and do not, in any way, superceed or replace the license texts. No functional change intended.
172 lines
5.5 KiB
C
172 lines
5.5 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2010 Rui Paulo <rpaulo@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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enum ieee80211_ratealgs {
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IEEE80211_RATECTL_AMRR = 0,
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IEEE80211_RATECTL_RSSADAPT = 1,
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IEEE80211_RATECTL_ONOE = 2,
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IEEE80211_RATECTL_SAMPLE = 3,
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IEEE80211_RATECTL_NONE = 4,
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IEEE80211_RATECTL_MAX
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};
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/* used fields for tx_complete() events */
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#define IEEE80211_RATECTL_STATUS_PKTLEN 0x00000001
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#define IEEE80211_RATECTL_STATUS_FINAL_RATE 0x00000002
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#define IEEE80211_RATECTL_STATUS_SHORT_RETRY 0x00000004
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#define IEEE80211_RATECTL_STATUS_LONG_RETRY 0x00000008
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#define IEEE80211_RATECTL_STATUS_RSSI 0x00000010
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/* failure reason */
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enum ieee80211_ratectl_tx_fail_reason {
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IEEE80211_RATECTL_TX_SUCCESS = 0,
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IEEE80211_RATECTL_TX_FAIL_SHORT = 1, /* too many RTS retries */
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IEEE80211_RATECTL_TX_FAIL_LONG = 2, /* too many retries */
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IEEE80211_RATECTL_TX_FAIL_EXPIRED = 3, /* lifetime expired */
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IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED = 4, /* another reason */
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};
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#define IEEE80211_RATECTL_TX_FAIL_MAX \
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(IEEE80211_RATECTL_TX_FAIL_UNSPECIFIED + 1)
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struct ieee80211_ratectl_tx_status {
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uint32_t flags; /* mark used fields */
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enum ieee80211_ratectl_tx_fail_reason status; /* Tx status */
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int pktlen; /* frame length */
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int final_rate; /* transmission rate */
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uint_fast8_t short_retries; /* RTS/CTS retries */
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uint_fast8_t long_retries; /* ACK retries */
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int8_t rssi; /* ACK RSSI */
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uint8_t spare[15]; /* for future use */
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};
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/* used fields for tx_update() events */
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#define IEEE80211_RATECTL_TX_STATS_NODE 0x00000001
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#define IEEE80211_RATECTL_TX_STATS_RETRIES 0x00000002
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struct ieee80211_ratectl_tx_stats {
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uint32_t flags; /* mark used fields */
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struct ieee80211_node *ni; /* receiver */
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int nframes; /* transmitted frames */
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int nsuccess; /* ACKed frames */
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int nretries; /* number of retries */
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};
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struct ieee80211_ratectl {
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const char *ir_name;
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int (*ir_attach)(const struct ieee80211vap *);
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void (*ir_detach)(const struct ieee80211vap *);
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void (*ir_init)(struct ieee80211vap *);
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void (*ir_deinit)(struct ieee80211vap *);
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void (*ir_node_init)(struct ieee80211_node *);
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void (*ir_node_deinit)(struct ieee80211_node *);
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int (*ir_rate)(struct ieee80211_node *, void *, uint32_t);
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void (*ir_tx_complete)(const struct ieee80211_node *,
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const struct ieee80211_ratectl_tx_status *);
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void (*ir_tx_update)(struct ieee80211vap *,
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struct ieee80211_ratectl_tx_stats *);
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void (*ir_setinterval)(const struct ieee80211vap *, int);
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void (*ir_node_stats)(struct ieee80211_node *ni, struct sbuf *s);
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};
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void ieee80211_ratectl_register(int, const struct ieee80211_ratectl *);
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void ieee80211_ratectl_unregister(int);
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void ieee80211_ratectl_init(struct ieee80211vap *);
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void ieee80211_ratectl_set(struct ieee80211vap *, int);
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MALLOC_DECLARE(M_80211_RATECTL);
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static __inline void
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ieee80211_ratectl_deinit(struct ieee80211vap *vap)
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{
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vap->iv_rate->ir_deinit(vap);
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}
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static __inline void
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ieee80211_ratectl_node_init(struct ieee80211_node *ni)
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{
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const struct ieee80211vap *vap = ni->ni_vap;
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vap->iv_rate->ir_node_init(ni);
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}
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static __inline void
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ieee80211_ratectl_node_deinit(struct ieee80211_node *ni)
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{
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const struct ieee80211vap *vap = ni->ni_vap;
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vap->iv_rate->ir_node_deinit(ni);
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}
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static int __inline
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ieee80211_ratectl_rate(struct ieee80211_node *ni, void *arg, uint32_t iarg)
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{
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const struct ieee80211vap *vap = ni->ni_vap;
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return vap->iv_rate->ir_rate(ni, arg, iarg);
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}
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static __inline void
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ieee80211_ratectl_tx_complete(const struct ieee80211_node *ni,
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const struct ieee80211_ratectl_tx_status *status)
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{
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const struct ieee80211vap *vap = ni->ni_vap;
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vap->iv_rate->ir_tx_complete(ni, status);
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}
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static __inline void
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ieee80211_ratectl_tx_update(struct ieee80211vap *vap,
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struct ieee80211_ratectl_tx_stats *stats)
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{
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if (vap->iv_rate->ir_tx_update == NULL)
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return;
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vap->iv_rate->ir_tx_update(vap, stats);
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}
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static __inline void
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ieee80211_ratectl_setinterval(const struct ieee80211vap *vap, int msecs)
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{
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if (vap->iv_rate->ir_setinterval == NULL)
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return;
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vap->iv_rate->ir_setinterval(vap, msecs);
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}
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static __inline void
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ieee80211_ratectl_node_stats(struct ieee80211_node *ni, struct sbuf *s)
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{
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const struct ieee80211vap *vap = ni->ni_vap;
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if (vap->iv_rate->ir_node_stats == NULL)
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return;
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vap->iv_rate->ir_node_stats(ni, s);
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}
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