1 /*- 2 * Copyright (C) 2000-2003 3 * Sony Computer Science Laboratories Inc. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $KAME: altq_priq.h,v 1.7 2003/10/03 05:05:15 kjc Exp $ 27 * $FreeBSD$ 28 */ 29 30 #ifndef _ALTQ_ALTQ_PRIQ_H_ 31 #define _ALTQ_ALTQ_PRIQ_H_ 32 33 #include <net/altq/altq.h> 34 #include <net/altq/altq_classq.h> 35 #include <net/altq/altq_red.h> 36 #include <net/altq/altq_rio.h> 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 #define PRIQ_MAXPRI 16 /* upper limit of the number of priorities */ 43 44 #ifdef ALTQ3_COMPAT 45 struct priq_interface { 46 char ifname[IFNAMSIZ]; /* interface name (e.g., fxp0) */ 47 u_long arg; /* request-specific argument */ 48 }; 49 50 struct priq_add_class { 51 struct priq_interface iface; 52 int pri; /* priority (0 is the lowest) */ 53 int qlimit; /* queue size limit */ 54 int flags; /* misc flags (see below) */ 55 56 u_int32_t class_handle; /* return value */ 57 }; 58 #endif /* ALTQ3_COMPAT */ 59 60 /* priq class flags */ 61 #define PRCF_RED 0x0001 /* use RED */ 62 #define PRCF_ECN 0x0002 /* use RED/ECN */ 63 #define PRCF_RIO 0x0004 /* use RIO */ 64 #define PRCF_CLEARDSCP 0x0010 /* clear diffserv codepoint */ 65 #define PRCF_DEFAULTCLASS 0x1000 /* default class */ 66 67 /* special class handles */ 68 #define PRIQ_NULLCLASS_HANDLE 0 69 70 #ifdef ALTQ3_COMPAT 71 struct priq_delete_class { 72 struct priq_interface iface; 73 u_int32_t class_handle; 74 }; 75 76 struct priq_modify_class { 77 struct priq_interface iface; 78 u_int32_t class_handle; 79 int pri; 80 int qlimit; 81 int flags; 82 }; 83 84 struct priq_add_filter { 85 struct priq_interface iface; 86 u_int32_t class_handle; 87 struct flow_filter filter; 88 89 u_long filter_handle; /* return value */ 90 }; 91 92 struct priq_delete_filter { 93 struct priq_interface iface; 94 u_long filter_handle; 95 }; 96 #endif /* ALTQ3_COMPAT */ 97 98 struct priq_classstats { 99 u_int32_t class_handle; 100 101 u_int qlength; 102 u_int qlimit; 103 u_int period; 104 struct pktcntr xmitcnt; /* transmitted packet counter */ 105 struct pktcntr dropcnt; /* dropped packet counter */ 106 107 /* red and rio related info */ 108 int qtype; 109 struct redstats red[3]; /* rio has 3 red stats */ 110 }; 111 112 #ifdef ALTQ3_COMPAT 113 struct priq_class_stats { 114 struct priq_interface iface; 115 int maxpri; /* in/out */ 116 117 struct priq_classstats *stats; /* pointer to stats array */ 118 }; 119 120 #define PRIQ_IF_ATTACH _IOW('Q', 1, struct priq_interface) 121 #define PRIQ_IF_DETACH _IOW('Q', 2, struct priq_interface) 122 #define PRIQ_ENABLE _IOW('Q', 3, struct priq_interface) 123 #define PRIQ_DISABLE _IOW('Q', 4, struct priq_interface) 124 #define PRIQ_CLEAR _IOW('Q', 5, struct priq_interface) 125 #define PRIQ_ADD_CLASS _IOWR('Q', 7, struct priq_add_class) 126 #define PRIQ_DEL_CLASS _IOW('Q', 8, struct priq_delete_class) 127 #define PRIQ_MOD_CLASS _IOW('Q', 9, struct priq_modify_class) 128 #define PRIQ_ADD_FILTER _IOWR('Q', 10, struct priq_add_filter) 129 #define PRIQ_DEL_FILTER _IOW('Q', 11, struct priq_delete_filter) 130 #define PRIQ_GETSTATS _IOWR('Q', 12, struct priq_class_stats) 131 132 #endif /* ALTQ3_COMPAT */ 133 134 #ifdef _KERNEL 135 136 struct priq_class { 137 u_int32_t cl_handle; /* class handle */ 138 class_queue_t *cl_q; /* class queue structure */ 139 struct red *cl_red; /* RED state */ 140 int cl_pri; /* priority */ 141 int cl_flags; /* class flags */ 142 struct priq_if *cl_pif; /* back pointer to pif */ 143 struct altq_pktattr *cl_pktattr; /* saved header used by ECN */ 144 145 /* statistics */ 146 u_int cl_period; /* backlog period */ 147 struct pktcntr cl_xmitcnt; /* transmitted packet counter */ 148 struct pktcntr cl_dropcnt; /* dropped packet counter */ 149 }; 150 151 /* 152 * priq interface state 153 */ 154 struct priq_if { 155 struct priq_if *pif_next; /* interface state list */ 156 struct ifaltq *pif_ifq; /* backpointer to ifaltq */ 157 u_int pif_bandwidth; /* link bandwidth in bps */ 158 int pif_maxpri; /* max priority in use */ 159 struct priq_class *pif_default; /* default class */ 160 struct priq_class *pif_classes[PRIQ_MAXPRI]; /* classes */ 161 #ifdef ALTQ3_CLFIER_COMPAT 162 struct acc_classifier pif_classifier; /* classifier */ 163 #endif 164 }; 165 166 #endif /* _KERNEL */ 167 168 #ifdef __cplusplus 169 } 170 #endif 171 172 #endif /* _ALTQ_ALTQ_PRIQ_H_ */ 173