1 /* $NetBSD: altq_var.h,v 1.4 2002/11/02 07:17:31 perry Exp $ */ 2 /* $KAME: altq_var.h,v 1.7 2000/12/14 08:12:46 thorpej Exp $ */ 3 4 /* 5 * Copyright (C) 1998-2000 6 * Sony Computer Science Laboratories Inc. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY SONY CSL AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL SONY CSL OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 #ifndef _ALTQ_ALTQ_VAR_H_ 30 #define _ALTQ_ALTQ_VAR_H_ 31 32 #ifdef _KERNEL 33 34 #include <sys/param.h> 35 #include <sys/kernel.h> 36 #include <sys/queue.h> 37 38 /* 39 * filter structure for altq common classifier 40 */ 41 struct acc_filter { 42 LIST_ENTRY(acc_filter) f_chain; 43 void *f_class; /* pointer to the class */ 44 u_long f_handle; /* filter id */ 45 u_int32_t f_fbmask; /* filter bitmask */ 46 struct flow_filter f_filter; /* filter value */ 47 }; 48 49 /* 50 * XXX ACC_FILTER_TABLESIZE can't be larger than 2048 unless we fix 51 * the handle assignment. 52 */ 53 #define ACC_FILTER_TABLESIZE (256+1) 54 #define ACC_FILTER_MASK (ACC_FILTER_TABLESIZE - 2) 55 #define ACC_WILDCARD_INDEX (ACC_FILTER_TABLESIZE - 1) 56 #ifdef __GNUC__ 57 #define ACC_GET_HASH_INDEX(addr) \ 58 ({int x = (addr) + ((addr) >> 16); (x + (x >> 8)) & ACC_FILTER_MASK;}) 59 #else 60 #define ACC_GET_HASH_INDEX(addr) \ 61 (((addr) + ((addr) >> 8) + ((addr) >> 16) + ((addr) >> 24)) \ 62 & ACC_FILTER_MASK) 63 #endif 64 #define ACC_GET_HINDEX(handle) ((handle) >> 20) 65 66 struct acc_classifier { 67 u_int32_t acc_fbmask; 68 LIST_HEAD(filt, acc_filter) acc_filters[ACC_FILTER_TABLESIZE]; 69 }; 70 71 /* 72 * flowinfo mask bits used by classifier 73 */ 74 /* for ipv4 */ 75 #define FIMB4_PROTO 0x0001 76 #define FIMB4_TOS 0x0002 77 #define FIMB4_DADDR 0x0004 78 #define FIMB4_SADDR 0x0008 79 #define FIMB4_DPORT 0x0010 80 #define FIMB4_SPORT 0x0020 81 #define FIMB4_GPI 0x0040 82 #define FIMB4_ALL 0x007f 83 /* for ipv6 */ 84 #define FIMB6_PROTO 0x0100 85 #define FIMB6_TCLASS 0x0200 86 #define FIMB6_DADDR 0x0400 87 #define FIMB6_SADDR 0x0800 88 #define FIMB6_DPORT 0x1000 89 #define FIMB6_SPORT 0x2000 90 #define FIMB6_GPI 0x4000 91 #define FIMB6_FLABEL 0x8000 92 #define FIMB6_ALL 0xff00 93 94 #define FIMB_ALL (FIMB4_ALL|FIMB6_ALL) 95 96 #define FIMB4_PORTS (FIMB4_DPORT|FIMB4_SPORT|FIMB4_GPI) 97 #define FIMB6_PORTS (FIMB6_DPORT|FIMB6_SPORT|FIMB6_GPI) 98 99 /* 100 * machine dependent clock 101 * a 64bit high resolution time counter. 102 */ 103 extern u_int32_t machclk_freq; 104 extern u_int32_t machclk_per_tick; 105 extern void init_machclk(void); 106 107 #if defined(__i386__) && !defined(I586_CPU) && !defined(I686_CPU) 108 #ifndef ALTQ_NOPCC 109 #define ALTQ_NOPCC /* TSC is not available, ALTQ_NOPCC needed */ 110 #endif 111 #endif 112 113 #if defined(__i386__) && !defined(ALTQ_NOPCC) 114 /* for pentium tsc */ 115 #include <machine/cpufunc.h> 116 117 #define read_machclk() rdtsc() 118 #ifdef __OpenBSD__ 119 static __inline u_int64_t 120 rdtsc(void) 121 { 122 u_int64_t rv; 123 __asm __volatile(".byte 0x0f, 0x31" : "=A" (rv)); 124 return (rv); 125 } 126 #endif /* __OpenBSD__ */ 127 128 #elif defined(__alpha__) && !defined(ALTQ_NOPCC) 129 /* for alpha rpcc */ 130 extern u_int64_t read_machclk(void); 131 132 #else /* !i386 && !alpha */ 133 /* emulate 256MHz using microtime() */ 134 #define MACHCLK_SHIFT 8 135 static __inline u_int64_t 136 read_machclk(void) 137 { 138 struct timeval tv; 139 microtime(&tv); 140 return (((u_int64_t)(tv.tv_sec - boottime.tv_sec) * 1000000 141 + tv.tv_usec) << MACHCLK_SHIFT); 142 } 143 #endif /* !i386 && !alpha */ 144 145 /* 146 * debug support 147 */ 148 #ifdef ALTQ_DEBUG 149 #ifdef __STDC__ 150 #define ASSERT(e) ((e) ? (void)0 : altq_assert(__FILE__, __LINE__, #e)) 151 #else /* PCC */ 152 #define ASSERT(e) ((e) ? (void)0 : altq_assert(__FILE__, __LINE__, "e")) 153 #endif 154 #else 155 #define ASSERT(e) ((void)0) 156 #endif 157 158 /* 159 * misc stuff for compatibility 160 */ 161 /* ioctl cmd type */ 162 #if defined(__FreeBSD__) && (__FreeBSD__ < 3) 163 typedef int ioctlcmd_t; 164 #else 165 typedef u_long ioctlcmd_t; 166 #endif 167 168 /* 169 * queue macros: 170 * the interface of TAILQ_LAST macro changed after the introduction 171 * of softupdate. redefine it here to make it work with pre-2.2.7. 172 */ 173 #undef TAILQ_LAST 174 #define TAILQ_LAST(head, headname) \ 175 (*(((struct headname *)((head)->tqh_last))->tqh_last)) 176 177 #ifndef TAILQ_EMPTY 178 #define TAILQ_EMPTY(head) ((head)->tqh_first == NULL) 179 #endif 180 #ifndef TAILQ_FOREACH 181 #define TAILQ_FOREACH(var, head, field) \ 182 for (var = TAILQ_FIRST(head); var; var = TAILQ_NEXT(var, field)) 183 #endif 184 185 /* macro for timeout/untimeout */ 186 #if (__FreeBSD_version > 300000) || defined(__NetBSD__) 187 /* use callout */ 188 #include <sys/callout.h> 189 190 #define CALLOUT_INIT(c) callout_init((c)) 191 #define CALLOUT_RESET(c,t,f,a) callout_reset((c),(t),(f),(a)) 192 #define CALLOUT_STOP(c) callout_stop((c)) 193 #ifndef CALLOUT_INITIALIZER 194 #define CALLOUT_INITIALIZER { { { NULL } }, 0, NULL, NULL, 0 } 195 #endif 196 #else 197 /* use old-style timeout/untimeout */ 198 /* dummy callout structure */ 199 struct callout { 200 void *c_arg; /* function argument */ 201 void (*c_func) __P((void *));/* functiuon to call */ 202 }; 203 #define CALLOUT_INIT(c) do { bzero((c), sizeof(*(c))); } while (/*CONSTCOND*/ 0) 204 #define CALLOUT_RESET(c,t,f,a) do { (c)->c_arg = (a); \ 205 (c)->c_func = (f); \ 206 timeout((f),(a),(t)); } while (/*CONSTCOND*/ 0) 207 #define CALLOUT_STOP(c) untimeout((c)->c_func,(c)->c_arg) 208 #define CALLOUT_INITIALIZER { NULL, NULL } 209 #endif 210 #if !defined(__FreeBSD__) 211 typedef void (timeout_t)(void *); 212 #endif 213 214 #define m_pktlen(m) ((m)->m_pkthdr.len) 215 216 struct ifnet; struct mbuf; struct flowinfo; 217 218 void *altq_lookup __P((char *, int)); 219 int altq_extractflow __P((struct mbuf *, int, struct flowinfo *, u_int32_t)); 220 int acc_add_filter __P((struct acc_classifier *, struct flow_filter *, 221 void *, u_long *)); 222 int acc_delete_filter __P((struct acc_classifier *, u_long)); 223 int acc_discard_filters __P((struct acc_classifier *, void *, int)); 224 void *acc_classify __P((void *, struct mbuf *, int)); 225 u_int8_t read_dsfield __P((struct mbuf *, struct altq_pktattr *)); 226 void write_dsfield __P((struct mbuf *, struct altq_pktattr *, u_int8_t)); 227 void altq_assert __P((const char *, int, const char *)); 228 int tbr_set __P((struct ifaltq *, struct tb_profile *)); 229 int tbr_get __P((struct ifaltq *, struct tb_profile *)); 230 231 #endif /* _KERNEL */ 232 #endif /* _ALTQ_ALTQ_VAR_H_ */ 233