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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/net80211/ieee80211_ageq.h
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/*-

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 * SPDX-License-Identifier: BSD-2-Clause

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 *

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 * Copyright (c) 2009 Sam Leffler, Errno Consulting

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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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#ifndef _NET80211_IEEE80211_STAGEQ_H_

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#define _NET80211_IEEE80211_STAGEQ_H_

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struct ieee80211_node;

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struct mbuf;

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struct ieee80211_ageq {

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	ieee80211_ageq_lock_t	aq_lock;

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	int			aq_len;		/* # items on queue */

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	int			aq_maxlen;	/* max queue length */

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	int			aq_drops;	/* frames dropped */

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	struct mbuf		*aq_head;	/* frames linked w/ m_nextpkt */

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	struct mbuf		*aq_tail;	/* last frame in queue */

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};

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void	ieee80211_ageq_init(struct ieee80211_ageq *, int maxlen,

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	    const char *name);

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void	ieee80211_ageq_cleanup(struct ieee80211_ageq *);

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void	ieee80211_ageq_mfree(struct mbuf *);

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int	ieee80211_ageq_append(struct ieee80211_ageq *, struct mbuf *,

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	    int age);

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void	ieee80211_ageq_drain(struct ieee80211_ageq *);

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void	ieee80211_ageq_drain_node(struct ieee80211_ageq *,

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	    struct ieee80211_node *);

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struct mbuf *ieee80211_ageq_age(struct ieee80211_ageq *, int quanta);

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struct mbuf *ieee80211_ageq_remove(struct ieee80211_ageq *,

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	    struct ieee80211_node *match);

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#endif /* _NET80211_IEEE80211_STAGEQ_H_ */

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