2010-04-07 15:29:13 +00:00
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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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2010-10-19 18:49:26 +00:00
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IEEE80211_RATECTL_AMRR = 0,
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2010-04-07 15:29:13 +00:00
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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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2010-10-19 18:49:26 +00:00
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IEEE80211_RATECTL_NONE = 4,
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2010-04-07 15:29:13 +00:00
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IEEE80211_RATECTL_MAX
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};
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2016-10-02 20:35:55 +00:00
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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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2010-04-07 15:29:13 +00:00
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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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2016-10-02 20:35:55 +00:00
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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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2010-04-07 15:29:13 +00:00
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void (*ir_setinterval)(const struct ieee80211vap *, int);
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2016-03-16 02:07:04 +00:00
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void (*ir_node_stats)(struct ieee80211_node *ni, struct sbuf *s);
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2010-04-07 15:29:13 +00:00
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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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2010-11-06 18:17:20 +00:00
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void ieee80211_ratectl_init(struct ieee80211vap *);
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2010-04-07 15:29:13 +00:00
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void ieee80211_ratectl_set(struct ieee80211vap *, int);
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MALLOC_DECLARE(M_80211_RATECTL);
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2015-01-11 18:43:45 +00:00
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static __inline void
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2010-04-07 15:29:13 +00:00
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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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2015-01-11 18:43:45 +00:00
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static __inline void
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2010-04-07 15:29:13 +00:00
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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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2015-01-11 18:43:45 +00:00
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static __inline void
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2010-04-07 15:29:13 +00:00
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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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2015-01-11 18:43:45 +00:00
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static __inline void
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2016-10-02 20:35:55 +00:00
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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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2010-04-07 15:29:13 +00:00
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{
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2016-10-02 20:35:55 +00:00
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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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2010-04-07 15:29:13 +00:00
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}
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2015-01-11 18:43:45 +00:00
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static __inline void
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2016-10-02 20:35:55 +00:00
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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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2010-04-07 15:29:13 +00:00
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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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2016-10-02 20:35:55 +00:00
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vap->iv_rate->ir_tx_update(vap, stats);
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2010-04-07 15:29:13 +00:00
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}
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2015-01-11 18:43:45 +00:00
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static __inline void
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2010-04-07 15:29:13 +00:00
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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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2016-03-16 02:07:04 +00:00
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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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