sys/net/altq/altq_cbq.h

root/sys/net/altq/altq_cbq.h
/*      $KAME: altq_cbq.h,v 1.12 2003/10/03 05:05:15 kjc Exp $  */
/*      $DragonFly: src/sys/net/altq/altq_cbq.h,v 1.1 2005/02/11 22:25:57 joerg 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 <net/altq/altq.h>
#include <net/altq/altq_rmclass.h>
#include <net/altq/altq_red.h>
#include <net/altq/altq_rio.h>

#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_CLEARDSCP        0x0008  /* clear diffserv codepoint */
#define CBQCLF_BORROW           0x0010  /* 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_ {
        uint32_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 */

#endif /* !_ALTQ_ALTQ_CBQ_H_ */
DragonflyBSD
