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/* $OpenBSD: altq_cbq.h,v 1.12 2011/07/03 23:48:41 henning Exp $ */
/* $KAME: altq_cbq.h,v 1.5 2000/12/02 13:44:40 kjc Exp $ */
/*
* Copyright (c) Sun Microsystems, Inc. 1993-1998 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.
*
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the SMCC Technology
* Development Group at Sun Microsystems, Inc.
*
* 4. The name of the Sun Microsystems, Inc nor may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* SUN MICROSYSTEMS DOES NOT CLAIM MERCHANTABILITY OF THIS SOFTWARE OR THE
* SUITABILITY OF THIS SOFTWARE FOR ANY PARTICULAR PURPOSE. The software is
* provided "as is" without express or implied warranty of any kind.
*
* These notices must be retained in any copies of any part of this software.
*/
#ifndef _ALTQ_ALTQ_CBQ_H_
#define _ALTQ_ALTQ_CBQ_H_
#include <altq/altq.h>
#include <altq/altq_rmclass.h>
#include <altq/altq_red.h>
#ifdef __cplusplus
extern "C" {
#endif
#define NULL_CLASS_HANDLE 0
/* class flags should be same as class flags in rm_class.h */
#define CBQCLF_RED 0x0001 /* use RED */
#define CBQCLF_ECN 0x0002 /* use RED/ECN */
#define CBQCLF_RIO 0x0004 /* use RIO */
#define CBQCLF_FLOWVALVE 0x0008 /* use flowvalve (aka penalty-box) */
#define CBQCLF_BORROW 0x0020 /* borrow from parent */
/* class flags only for root class */
#define CBQCLF_WRR 0x0100 /* weighted-round robin */
#define CBQCLF_EFFICIENT 0x0200 /* work-conserving */
/* class flags for special classes */
#define CBQCLF_ROOTCLASS 0x1000 /* root class */
#define CBQCLF_DEFCLASS 0x2000 /* default class */
#define CBQCLF_CLASSMASK 0xf000 /* class mask */
#define CBQ_MAXQSIZE 200
#define CBQ_MAXPRI RM_MAXPRIO
typedef struct _cbq_class_stats_ {
u_int32_t handle;
u_int depth;
struct pktcntr xmit_cnt; /* packets sent in this class */
struct pktcntr drop_cnt; /* dropped packets */
u_int over; /* # times went over limit */
u_int borrows; /* # times tried to borrow */
u_int overactions; /* # times invoked overlimit action */
u_int delays; /* # times invoked delay actions */
/* other static class parameters useful for debugging */
int priority;
int maxidle;
int minidle;
int offtime;
int qmax;
int ns_per_byte;
int wrr_allot;
int qcnt; /* # packets in queue */
int avgidle;
/* red and rio related info */
int qtype;
struct redstats red[3];
} class_stats_t;
#ifdef _KERNEL
/*
* Define macros only good for kernel drivers and modules.
*/
#define CBQ_WATCHDOG (hz / 20)
#define CBQ_TIMEOUT 10
#define CBQ_LS_TIMEOUT (20 * hz / 1000)
#define CBQ_MAX_CLASSES 256
/*
* Define State structures.
*/
typedef struct cbqstate {
int cbq_qlen; /* # of packets in cbq */
struct rm_class *cbq_class_tbl[CBQ_MAX_CLASSES];
struct rm_ifdat ifnp;
struct callout cbq_callout; /* for timeouts */
} cbq_state_t;
#endif /* _KERNEL */
#ifdef __cplusplus
}
#endif
#endif /* !_ALTQ_ALTQ_CBQ_H_ */
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