1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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: releng/12.0/sys/net80211/ieee80211_ageq.h 326272 2017-11-27 15:23:17Z pfg $
28 */
29#ifndef _NET80211_IEEE80211_STAGEQ_H_
30#define _NET80211_IEEE80211_STAGEQ_H_
31
32struct ieee80211_node;
33struct mbuf;
34
35struct 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
44void	ieee80211_ageq_init(struct ieee80211_ageq *, int maxlen,
45	    const char *name);
46void	ieee80211_ageq_cleanup(struct ieee80211_ageq *);
47void	ieee80211_ageq_mfree(struct mbuf *);
48int	ieee80211_ageq_append(struct ieee80211_ageq *, struct mbuf *,
49	    int age);
50void	ieee80211_ageq_drain(struct ieee80211_ageq *);
51void	ieee80211_ageq_drain_node(struct ieee80211_ageq *,
52	    struct ieee80211_node *);
53struct mbuf *ieee80211_ageq_age(struct ieee80211_ageq *, int quanta);
54struct mbuf *ieee80211_ageq_remove(struct ieee80211_ageq *,
55	    struct ieee80211_node *match);
56#endif /* _NET80211_IEEE80211_STAGEQ_H_ */
57