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/* $OpenBSD: altq_fifoq.h,v 1.2 2002/06/14 21:34:58 todd Exp $ */
/* $KAME: altq_fifoq.h,v 1.6 2000/12/14 08:12:45 thorpej Exp $ */
/*
* Copyright (C) 1997-2000
* Sony Computer Science Laboratories Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#ifndef _ALTQ_ALTQ_FIFOQ_H_
#define _ALTQ_ALTQ_FIFOQ_H_
typedef struct fifoq_state {
struct fifoq_state *q_next; /* next fifoq_state in the list */
struct ifaltq *q_ifq; /* backpointer to ifaltq */
struct mbuf *q_head; /* head of queue */
struct mbuf *q_tail; /* tail of queue */
int q_len; /* queue length */
int q_limit; /* max queue length */
/* statistics */
struct {
struct pktcntr xmit_cnt;
struct pktcntr drop_cnt;
u_int period;
} q_stats;
} fifoq_state_t;
struct fifoq_interface {
char fifoq_ifname[IFNAMSIZ];
};
struct fifoq_getstats {
struct fifoq_interface iface;
int q_len;
int q_limit;
struct pktcntr xmit_cnt;
struct pktcntr drop_cnt;
u_int period;
};
struct fifoq_conf {
struct fifoq_interface iface;
int fifoq_limit;
};
#define FIFOQ_LIMIT 50 /* default max queue length */
/*
* IOCTLs for FIFOQ
*/
#define FIFOQ_IF_ATTACH _IOW('Q', 1, struct fifoq_interface)
#define FIFOQ_IF_DETACH _IOW('Q', 2, struct fifoq_interface)
#define FIFOQ_ENABLE _IOW('Q', 3, struct fifoq_interface)
#define FIFOQ_DISABLE _IOW('Q', 4, struct fifoq_interface)
#define FIFOQ_CONFIG _IOWR('Q', 6, struct fifoq_conf)
#define FIFOQ_GETSTATS _IOWR('Q', 12, struct fifoq_getstats)
#endif /* _ALTQ_ALTQ_FIFOQ_H_ */
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