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Annotation of sys/altq/altq_cbq.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: altq_cbq.h,v 1.10 2004/01/14 08:42:23 kjc Exp $       */
                      2: /*     $KAME: altq_cbq.h,v 1.5 2000/12/02 13:44:40 kjc 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 <altq/altq.h>
                     38: #include <altq/altq_rmclass.h>
                     39: #include <altq/altq_red.h>
                     40: #include <altq/altq_rio.h>
                     41:
                     42: #ifdef __cplusplus
                     43: extern "C" {
                     44: #endif
                     45:
                     46: #define        NULL_CLASS_HANDLE       0
                     47:
                     48: /* class flags should be same as class flags in rm_class.h */
                     49: #define        CBQCLF_RED              0x0001  /* use RED */
                     50: #define        CBQCLF_ECN              0x0002  /* use RED/ECN */
                     51: #define        CBQCLF_RIO              0x0004  /* use RIO */
                     52: #define        CBQCLF_FLOWVALVE        0x0008  /* use flowvalve (aka penalty-box) */
                     53: #define        CBQCLF_CLEARDSCP        0x0010  /* clear diffserv codepoint */
                     54: #define        CBQCLF_BORROW           0x0020  /* borrow from parent */
                     55:
                     56: /* class flags only for root class */
                     57: #define        CBQCLF_WRR              0x0100  /* weighted-round robin */
                     58: #define        CBQCLF_EFFICIENT        0x0200  /* work-conserving */
                     59:
                     60: /* class flags for special classes */
                     61: #define        CBQCLF_ROOTCLASS        0x1000  /* root class */
                     62: #define        CBQCLF_DEFCLASS         0x2000  /* default class */
                     63: #define        CBQCLF_CLASSMASK        0xf000  /* class mask */
                     64:
                     65: #define        CBQ_MAXQSIZE            200
                     66: #define        CBQ_MAXPRI              RM_MAXPRIO
                     67:
                     68: typedef struct _cbq_class_stats_ {
                     69:        u_int32_t       handle;
                     70:        u_int           depth;
                     71:
                     72:        struct pktcntr  xmit_cnt;       /* packets sent in this class */
                     73:        struct pktcntr  drop_cnt;       /* dropped packets */
                     74:        u_int           over;           /* # times went over limit */
                     75:        u_int           borrows;        /* # times tried to borrow */
                     76:        u_int           overactions;    /* # times invoked overlimit action */
                     77:        u_int           delays;         /* # times invoked delay actions */
                     78:
                     79:        /* other static class parameters useful for debugging */
                     80:        int             priority;
                     81:        int             maxidle;
                     82:        int             minidle;
                     83:        int             offtime;
                     84:        int             qmax;
                     85:        int             ns_per_byte;
                     86:        int             wrr_allot;
                     87:
                     88:        int             qcnt;           /* # packets in queue */
                     89:        int             avgidle;
                     90:
                     91:        /* red and rio related info */
                     92:        int             qtype;
                     93:        struct redstats red[3];
                     94: } class_stats_t;
                     95:
                     96: #ifdef _KERNEL
                     97: /*
                     98:  * Define macros only good for kernel drivers and modules.
                     99:  */
                    100: #define        CBQ_WATCHDOG            (hz / 20)
                    101: #define        CBQ_TIMEOUT             10
                    102: #define        CBQ_LS_TIMEOUT          (20 * hz / 1000)
                    103:
                    104: #define        CBQ_MAX_CLASSES         256
                    105:
                    106: /*
                    107:  * Define State structures.
                    108:  */
                    109: typedef struct cbqstate {
                    110:        int                      cbq_qlen;      /* # of packets in cbq */
                    111:        struct rm_class         *cbq_class_tbl[CBQ_MAX_CLASSES];
                    112:
                    113:        struct rm_ifdat          ifnp;
                    114:        struct callout           cbq_callout;   /* for timeouts */
                    115: } cbq_state_t;
                    116:
                    117: #endif /* _KERNEL */
                    118:
                    119: #ifdef __cplusplus
                    120: }
                    121: #endif
                    122:
                    123: #endif /* !_ALTQ_ALTQ_CBQ_H_ */