Annotation of sys/altq/altq_priq.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: altq_priq.h,v 1.6 2004/01/14 08:42:23 kjc Exp $ */
! 2: /* $KAME: altq_priq.h,v 1.1 2000/10/18 09:15:23 kjc Exp $ */
! 3: /*
! 4: * Copyright (C) 2000-2002
! 5: * Sony Computer Science Laboratories Inc. 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: * 1. Redistributions of source code must retain the above copyright
! 11: * notice, this list of conditions and the following disclaimer.
! 12: * 2. Redistributions in binary form must reproduce the above copyright
! 13: * notice, this list of conditions and the following disclaimer in the
! 14: * documentation and/or other materials provided with the distribution.
! 15: *
! 16: * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND
! 17: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 18: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 19: * ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE
! 20: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 21: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 22: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 23: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 24: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 25: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 26: * SUCH DAMAGE.
! 27: */
! 28:
! 29: #ifndef _ALTQ_ALTQ_PRIQ_H_
! 30: #define _ALTQ_ALTQ_PRIQ_H_
! 31:
! 32: #include <altq/altq.h>
! 33: #include <altq/altq_classq.h>
! 34: #include <altq/altq_red.h>
! 35: #include <altq/altq_rio.h>
! 36:
! 37: #ifdef __cplusplus
! 38: extern "C" {
! 39: #endif
! 40:
! 41: #define PRIQ_MAXPRI 16 /* upper limit of the number of priorities */
! 42:
! 43: /* priq class flags */
! 44: #define PRCF_RED 0x0001 /* use RED */
! 45: #define PRCF_ECN 0x0002 /* use RED/ECN */
! 46: #define PRCF_RIO 0x0004 /* use RIO */
! 47: #define PRCF_CLEARDSCP 0x0010 /* clear diffserv codepoint */
! 48: #define PRCF_DEFAULTCLASS 0x1000 /* default class */
! 49:
! 50: /* special class handles */
! 51: #define PRIQ_NULLCLASS_HANDLE 0
! 52:
! 53: struct priq_classstats {
! 54: u_int32_t class_handle;
! 55:
! 56: u_int qlength;
! 57: u_int qlimit;
! 58: u_int period;
! 59: struct pktcntr xmitcnt; /* transmitted packet counter */
! 60: struct pktcntr dropcnt; /* dropped packet counter */
! 61:
! 62: /* red and rio related info */
! 63: int qtype;
! 64: struct redstats red[3]; /* rio has 3 red stats */
! 65: };
! 66:
! 67: #ifdef _KERNEL
! 68:
! 69: struct priq_class {
! 70: u_int32_t cl_handle; /* class handle */
! 71: class_queue_t *cl_q; /* class queue structure */
! 72: struct red *cl_red; /* RED state */
! 73: int cl_pri; /* priority */
! 74: int cl_flags; /* class flags */
! 75: struct priq_if *cl_pif; /* back pointer to pif */
! 76: struct altq_pktattr *cl_pktattr; /* saved header used by ECN */
! 77:
! 78: /* statistics */
! 79: u_int cl_period; /* backlog period */
! 80: struct pktcntr cl_xmitcnt; /* transmitted packet counter */
! 81: struct pktcntr cl_dropcnt; /* dropped packet counter */
! 82: };
! 83:
! 84: /*
! 85: * priq interface state
! 86: */
! 87: struct priq_if {
! 88: struct priq_if *pif_next; /* interface state list */
! 89: struct ifaltq *pif_ifq; /* backpointer to ifaltq */
! 90: u_int pif_bandwidth; /* link bandwidth in bps */
! 91: int pif_maxpri; /* max priority in use */
! 92: struct priq_class *pif_default; /* default class */
! 93: struct priq_class *pif_classes[PRIQ_MAXPRI]; /* classes */
! 94: };
! 95:
! 96: #endif /* _KERNEL */
! 97:
! 98: #ifdef __cplusplus
! 99: }
! 100: #endif
! 101:
! 102: #endif /* _ALTQ_ALTQ_PRIQ_H_ */
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