sys/net/altq/altq_cbq.h

   1 /*      $KAME: altq_cbq.h,v 1.12 2003/10/03 05:05:15 kjc Exp $  */
   2 /*      $DragonFly: src/sys/net/altq/altq_cbq.h,v 1.1 2005/02/11 22:25:57 joerg Exp $ */
   3
   4 /*
   5  * Copyright (c) Sun Microsystems, Inc. 1993-1998 All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  *
  11  * 1. Redistributions of source code must retain the above copyright
  12  *    notice, this list of conditions and the following disclaimer.
  13  *
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * 3. All advertising materials mentioning features or use of this software
  19  *    must display the following acknowledgement:
  20  *      This product includes software developed by the SMCC Technology
  21  *      Development Group at Sun Microsystems, Inc.
  22  *
  23  * 4. The name of the Sun Microsystems, Inc nor may not be used to endorse or
  24  *      promote products derived from this software without specific prior
  25  *      written permission.
  26  *
  27  * SUN MICROSYSTEMS DOES NOT CLAIM MERCHANTABILITY OF THIS SOFTWARE OR THE
  28  * SUITABILITY OF THIS SOFTWARE FOR ANY PARTICULAR PURPOSE.  The software is
  29  * provided "as is" without express or implied warranty of any kind.
  30  *
  31  * These notices must be retained in any copies of any part of this software.
  32  */
  33
  34 #ifndef _ALTQ_ALTQ_CBQ_H_
  35 #define _ALTQ_ALTQ_CBQ_H_
  36
  37 #include <net/altq/altq.h>
  38 #include <net/altq/altq_rmclass.h>
  39 #include <net/altq/altq_red.h>
  40 #include <net/altq/altq_rio.h>
  41
  42 #define NULL_CLASS_HANDLE       0
  43
  44 /* class flags should be same as class flags in rm_class.h */
  45 #define CBQCLF_RED              0x0001  /* use RED */
  46 #define CBQCLF_ECN              0x0002  /* use RED/ECN */
  47 #define CBQCLF_RIO              0x0004  /* use RIO */
  48 #define CBQCLF_CLEARDSCP        0x0008  /* clear diffserv codepoint */
  49 #define CBQCLF_BORROW           0x0010  /* borrow from parent */
  50
  51 /* class flags only for root class */
  52 #define CBQCLF_WRR              0x0100  /* weighted-round robin */
  53 #define CBQCLF_EFFICIENT        0x0200  /* work-conserving */
  54
  55 /* class flags for special classes */
  56 #define CBQCLF_ROOTCLASS        0x1000  /* root class */
  57 #define CBQCLF_DEFCLASS         0x2000  /* default class */
  58 #define CBQCLF_CLASSMASK        0xf000  /* class mask */
  59
  60 #define CBQ_MAXQSIZE            200
  61 #define CBQ_MAXPRI              RM_MAXPRIO
  62
  63 typedef struct _cbq_class_stats_ {
  64         uint32_t        handle;
  65         u_int           depth;
  66
  67         struct pktcntr  xmit_cnt;       /* packets sent in this class */
  68         struct pktcntr  drop_cnt;       /* dropped packets */
  69         u_int           over;           /* # times went over limit */
  70         u_int           borrows;        /* # times tried to borrow */
  71         u_int           overactions;    /* # times invoked overlimit action */
  72         u_int           delays;         /* # times invoked delay actions */
  73
  74         /* other static class parameters useful for debugging */
  75         int             priority;
  76         int             maxidle;
  77         int             minidle;
  78         int             offtime;
  79         int             qmax;
  80         int             ns_per_byte;
  81         int             wrr_allot;
  82
  83         int             qcnt;           /* # packets in queue */
  84         int             avgidle;
  85
  86         /* red and rio related info */
  87         int             qtype;
  88         struct redstats red[3];
  89 } class_stats_t;
  90
  91 #ifdef _KERNEL
  92 /*
  93  * Define macros only good for kernel drivers and modules.
  94  */
  95 #define CBQ_WATCHDOG            (hz / 20)
  96 #define CBQ_TIMEOUT             10
  97 #define CBQ_LS_TIMEOUT          (20 * hz / 1000)
  98
  99 #define CBQ_MAX_CLASSES 256
 100
 101 /*
 102  * Define State structures.
 103  */
 104 typedef struct cbqstate {
 105         int                      cbq_qlen;      /* # of packets in cbq */
 106         struct rm_class         *cbq_class_tbl[CBQ_MAX_CLASSES];
 107
 108         struct rm_ifdat          ifnp;
 109         struct callout           cbq_callout;   /* for timeouts */
 110 } cbq_state_t;
 111
 112 #endif /* _KERNEL */
 113
 114 #endif /* !_ALTQ_ALTQ_CBQ_H_ */