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/* $OpenBSD: altq_wfq.h,v 1.1 2001/06/27 05:28:36 kjc Exp $ */
/* $KAME: altq_wfq.h,v 1.5 2000/12/14 08:12:46 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.
*/
/*
* March 27, 1997. Written by Hiroshi Kyusojin of Keio University
* (kyu@mt.cs.keio.ac.jp).
*/
#ifndef _ALTQ_ALTQ_WFQ_H_
#define _ALTQ_ALTQ_WFQ_H_
#include <altq/altq.h>
#define DEFAULT_QSIZE 256
#define MAX_QSIZE 2048
struct wfq_interface{
char wfq_ifacename[IFNAMSIZ];
};
struct wfq_getqid{
struct wfq_interface iface;
struct flowinfo flow;
u_long qid;
};
struct wfq_setweight {
struct wfq_interface iface;
int qid;
int weight;
};
typedef struct each_queue_stats {
int bytes; /* bytes in this queue */
int weight; /* weight in percent */
struct pktcntr xmit_cnt;
struct pktcntr drop_cnt;
} queue_stats;
struct wfq_getstats {
struct wfq_interface iface;
int qid;
queue_stats stats;
};
struct wfq_conf {
struct wfq_interface iface;
int hash_policy; /* hash policy */
int nqueues; /* number of queues */
int qlimit; /* queue size in bytes */
};
#define WFQ_HASH_DSTADDR 0 /* hash by dst address */
#define WFQ_HASH_SRCPORT 1 /* hash by src port */
#define WFQ_HASH_FULL 2 /* hash by all fields */
#define WFQ_IF_ATTACH _IOW('Q', 1, struct wfq_interface)
#define WFQ_IF_DETACH _IOW('Q', 2, struct wfq_interface)
#define WFQ_ENABLE _IOW('Q', 3, struct wfq_interface)
#define WFQ_DISABLE _IOW('Q', 4, struct wfq_interface)
#define WFQ_CONFIG _IOWR('Q', 6, struct wfq_conf)
#define WFQ_GET_STATS _IOWR('Q', 12, struct wfq_getstats)
#define WFQ_GET_QID _IOWR('Q', 30, struct wfq_getqid)
#define WFQ_SET_WEIGHT _IOWR('Q', 31, struct wfq_setweight)
#ifdef _KERNEL
#define HWM (64 * 1024)
#define WFQ_QUOTA 512 /* quota bytes to send at a time */
#define WFQ_ADDQUOTA(q) ((q)->quota += WFQ_QUOTA * (q)->weight / 100)
#define ENABLE 0
#define DISABLE 1
typedef struct weighted_fair_queue{
struct weighted_fair_queue *next, *prev;
struct mbuf *head, *tail;
int bytes; /* bytes in this queue */
int quota; /* bytes sent in this round */
int weight; /* weight in percent */
struct pktcntr xmit_cnt;
struct pktcntr drop_cnt;
} wfq;
typedef struct wfqstate {
struct wfqstate *next; /* for wfqstate list */
struct ifaltq *ifq;
int nums; /* number of queues */
int hwm; /* high water mark */
int bytes; /* total bytes in all the queues */
wfq *rrp; /* round robin pointer */
wfq *queue; /* pointer to queue list */
u_long (*hash_func)(struct flowinfo *, int);
u_int32_t fbmask; /* filter bitmask */
} wfq_state_t;
#endif /* _KERNEL */
#endif /* _ALTQ_ALTQ_WFQ_H */
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