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_ */ 103