Annotation of sys/altq/altq_cbq.h, Revision 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_ */
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