1 /* $NetBSD: altq_priq.h,v 1.2 2000/12/14 08:49:50 thorpej Exp $ */ 2 /* $KAME: altq_priq.h,v 1.1 2000/10/18 09:15:23 kjc Exp $ */ 3 /* 4 * Copyright (C) 2000 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 struct priq_interface { 44 char ifname[IFNAMSIZ]; /* interface name (e.g., fxp0) */ 45 u_long arg; /* request-specific argument */ 46 }; 47 48 struct priq_add_class { 49 struct priq_interface iface; 50 int pri; /* priority (0 is the lowest) */ 51 int qlimit; /* queue size limit */ 52 int flags; /* misc flags (see below) */ 53 54 u_long class_handle; /* return value */ 55 }; 56 57 /* priq class flags */ 58 #define PRCF_RED 0x0001 /* use RED */ 59 #define PRCF_ECN 0x0002 /* use RED/ECN */ 60 #define PRCF_RIO 0x0004 /* use RIO */ 61 #define PRCF_CLEARDSCP 0x0010 /* clear diffserv codepoint */ 62 #define PRCF_DEFAULTCLASS 0x1000 /* default class */ 63 64 /* special class handles */ 65 #define PRIQ_NULLCLASS_HANDLE 0 66 67 struct priq_delete_class { 68 struct priq_interface iface; 69 u_long class_handle; 70 }; 71 72 struct priq_modify_class { 73 struct priq_interface iface; 74 u_long class_handle; 75 int pri; 76 int qlimit; 77 int flags; 78 }; 79 80 struct priq_add_filter { 81 struct priq_interface iface; 82 u_long class_handle; 83 struct flow_filter filter; 84 85 u_long filter_handle; /* return value */ 86 }; 87 88 struct priq_delete_filter { 89 struct priq_interface iface; 90 u_long filter_handle; 91 }; 92 93 struct class_stats { 94 u_long class_handle; 95 96 u_int qlength; 97 u_int period; 98 struct pktcntr xmitcnt; /* transmitted packet counter */ 99 struct pktcntr dropcnt; /* dropped packet counter */ 100 101 /* red and rio related info */ 102 int qtype; 103 struct redstats red[3]; /* rio has 3 red stats */ 104 }; 105 106 struct priq_class_stats { 107 struct priq_interface iface; 108 int maxpri; /* in/out */ 109 110 struct class_stats *stats; /* pointer to stats array */ 111 }; 112 113 #define PRIQ_IF_ATTACH _IOW('Q', 1, struct priq_interface) 114 #define PRIQ_IF_DETACH _IOW('Q', 2, struct priq_interface) 115 #define PRIQ_ENABLE _IOW('Q', 3, struct priq_interface) 116 #define PRIQ_DISABLE _IOW('Q', 4, struct priq_interface) 117 #define PRIQ_CLEAR _IOW('Q', 5, struct priq_interface) 118 #define PRIQ_ADD_CLASS _IOWR('Q', 7, struct priq_add_class) 119 #define PRIQ_DEL_CLASS _IOW('Q', 8, struct priq_delete_class) 120 #define PRIQ_MOD_CLASS _IOW('Q', 9, struct priq_modify_class) 121 #define PRIQ_ADD_FILTER _IOWR('Q', 10, struct priq_add_filter) 122 #define PRIQ_DEL_FILTER _IOW('Q', 11, struct priq_delete_filter) 123 #define PRIQ_GETSTATS _IOWR('Q', 12, struct priq_class_stats) 124 125 #ifdef _KERNEL 126 127 struct priq_class { 128 u_long cl_handle; /* class handle */ 129 class_queue_t *cl_q; /* class queue structure */ 130 struct red *cl_red; /* RED state */ 131 int cl_pri; /* priority */ 132 int cl_flags; /* class flags */ 133 struct priq_if *cl_pif; /* back pointer to pif */ 134 struct altq_pktattr *cl_pktattr; /* saved header used by ECN */ 135 136 /* statistics */ 137 u_int cl_period; /* backlog period */ 138 struct pktcntr cl_xmitcnt; /* transmitted packet counter */ 139 struct pktcntr cl_dropcnt; /* dropped packet counter */ 140 }; 141 142 /* 143 * priq interface state 144 */ 145 struct priq_if { 146 struct priq_if *pif_next; /* interface state list */ 147 struct ifaltq *pif_ifq; /* backpointer to ifaltq */ 148 u_int pif_bandwidth; /* link bandwidth in bps */ 149 int pif_maxpri; /* max priority in use */ 150 struct priq_class *pif_default; /* default class */ 151 struct priq_class *pif_classes[PRIQ_MAXPRI]; /* classes */ 152 struct acc_classifier pif_classifier; /* classifier */ 153 }; 154 155 #endif /* _KERNEL */ 156 157 #ifdef __cplusplus 158 } 159 #endif 160 161 #endif /* _ALTQ_ALTQ_PRIQ_H_ */ 162