1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2009 Sam Leffler, Errno Consulting 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 17 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 18 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 19 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 20 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 21 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 25 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 */ 29 #ifndef _NET80211_IEEE80211_STAGEQ_H_ 30 #define _NET80211_IEEE80211_STAGEQ_H_ 31 32 struct ieee80211_node; 33 struct mbuf; 34 35 struct ieee80211_ageq { 36 ieee80211_ageq_lock_t aq_lock; 37 int aq_len; /* # items on queue */ 38 int aq_maxlen; /* max queue length */ 39 int aq_drops; /* frames dropped */ 40 struct mbuf *aq_head; /* frames linked w/ m_nextpkt */ 41 struct mbuf *aq_tail; /* last frame in queue */ 42 }; 43 44 void ieee80211_ageq_init(struct ieee80211_ageq *, int maxlen, 45 const char *name); 46 void ieee80211_ageq_cleanup(struct ieee80211_ageq *); 47 void ieee80211_ageq_mfree(struct mbuf *); 48 int ieee80211_ageq_append(struct ieee80211_ageq *, struct mbuf *, 49 int age); 50 void ieee80211_ageq_drain(struct ieee80211_ageq *); 51 void ieee80211_ageq_drain_node(struct ieee80211_ageq *, 52 struct ieee80211_node *); 53 struct mbuf *ieee80211_ageq_age(struct ieee80211_ageq *, int quanta); 54 struct mbuf *ieee80211_ageq_remove(struct ieee80211_ageq *, 55 struct ieee80211_node *match); 56 #endif /* _NET80211_IEEE80211_STAGEQ_H_ */ 57