1 /*- 2 * Copyright (c) 1991 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)tp_param.h 7.8 (Berkeley) 06/27/91 8 */ 9 10 /*********************************************************** 11 Copyright IBM Corporation 1987 12 13 All Rights Reserved 14 15 Permission to use, copy, modify, and distribute this software and its 16 documentation for any purpose and without fee is hereby granted, 17 provided that the above copyright notice appear in all copies and that 18 both that copyright notice and this permission notice appear in 19 supporting documentation, and that the name of IBM not be 20 used in advertising or publicity pertaining to distribution of the 21 software without specific, written prior permission. 22 23 IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING 24 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL 25 IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR 26 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 27 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, 28 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 29 SOFTWARE. 30 31 ******************************************************************/ 32 33 /* 34 * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison 35 */ 36 /* 37 * ARGO TP 38 * 39 * $Header: tp_param.h,v 5.3 88/11/18 17:28:18 nhall Exp $ 40 * $Source: /usr/argo/sys/netiso/RCS/tp_param.h,v $ 41 * 42 */ 43 44 #ifndef __TP_PARAM__ 45 #define __TP_PARAM__ 46 47 48 /****************************************************** 49 * compile time parameters that can be changed 50 *****************************************************/ 51 52 #define TP_CLASSES_IMPLEMENTED 0x11 /* zero and 4 */ 53 54 #define TP_DECBIT_CLEAR_COUNT 3 55 56 /*#define N_TPREF 100 */ 57 #ifdef KERNEL 58 extern int N_TPREF; 59 #endif 60 61 #define TP_SOCKBUFSIZE ((u_long)4096) 62 #define TP0_SOCKBUFSIZE ((u_long)512) 63 #define MAX_TSAP_SEL_LEN 64 64 65 /* maximum tpdu size we'll accept: */ 66 #define TP_TPDUSIZE 0xc /* 4096 octets for classes 1-4*/ 67 #define TP0_TPDUSIZE 0xb /* 2048 octets for class 0 */ 68 #define TP_DFL_TPDUSIZE 0x7 /* 128 octets default */ 69 /* NOTE: don't ever negotiate 8192 because could get 70 * wraparound in checksumming 71 * (No mtu is likely to be larger than 4K anyway...) 72 */ 73 #define TP_NRETRANS 5 /* was 1; cray uses 6 */ 74 #define TP_MAXPORT 0xefff 75 76 #define TP_RTT_NUM 0x7 77 /* ALPHA: to be used in the context: gain= 1/(2**alpha), or 78 * put another way, gaintimes(x) (x)>>alpha (forgetting the case alpha==0) 79 */ 80 #define TP_RTT_ALPHA 3 81 #define TP_RTV_ALPHA 2 82 83 /* 84 * not sure how to treat data on disconnect 85 */ 86 #define T_CONN_DATA 0x1 87 #define T_DISCONNECT 0x2 88 #define T_DISC_DATA 0x4 89 #define T_XDATA 0x8 90 91 #define ISO_CLNS 0 92 #define IN_CLNS 1 93 #define ISO_CONS 2 94 #define ISO_COSNS 3 95 #define TP_MAX_NETSERVICES 3 96 97 /* Indices into tp stats ackreason[i] */ 98 #define _ACK_DONT_ 0 99 #define _ACK_STRAT_EACH_ 0x1 100 #define _ACK_STRAT_FULLWIN_ 0x2 101 #define _ACK_DUP_ 0x3 102 #define _ACK_EOT_ 0x4 103 #define _ACK_REORDER_ 0x5 104 #define _ACK_USRRCV_ 0x6 105 #define _ACK_FCC_ 0x7 106 #define _ACK_NUM_REASONS_ 0x8 107 108 /* masks for use in tp_stash() */ 109 #define ACK_DONT 0 110 #define ACK_STRAT_EACH (1<< _ACK_STRAT_EACH_) 111 #define ACK_STRAT_FULLWIN (1<< _ACK_STRAT_FULLWIN_) 112 #define ACK_DUP (1<< _ACK_DUP_) 113 #define ACK_EOT (1<< _ACK_EOT_) 114 #define ACK_REORDER (1<< _ACK_REORDER_) 115 116 /****************************************************** 117 * constants used in the protocol 118 *****************************************************/ 119 120 #define TP_VERSION 0x1 121 122 #define TP_MAX_HEADER_LEN 256 123 124 #define TP_MIN_TPDUSIZE 0x7 /* 128 octets */ 125 #define TP_MAX_TPDUSIZE 0xd /* 8192 octets */ 126 127 #define TP_MAX_XPD_DATA 0x10 /* 16 octets */ 128 #define TP_MAX_CC_DATA 0x20 /* 32 octets */ 129 #define TP_MAX_CR_DATA TP_MAX_CC_DATA 130 #define TP_MAX_DR_DATA 0x40 /* 64 octets */ 131 132 #define TP_XTD_FMT_BIT 0x80000000 133 #define TP_XTD_FMT_MASK 0x7fffffff 134 #define TP_NML_FMT_BIT 0x80 135 #define TP_NML_FMT_MASK 0x7f 136 137 /* 138 * values for the tpdu_type field, 2nd byte in a tpdu 139 */ 140 141 #define TP_MIN_TPDUTYPE 0x1 142 143 #define XPD_TPDU_type 0x1 144 #define XAK_TPDU_type 0x2 145 #define GR_TPDU_type 0x3 146 #define AK_TPDU_type 0x6 147 #define ER_TPDU_type 0x7 148 #define DR_TPDU_type 0x8 149 #define DC_TPDU_type 0xc 150 #define CC_TPDU_type 0xd 151 #define CR_TPDU_type 0xe 152 #define DT_TPDU_type 0xf 153 154 #define TP_MAX_TPDUTYPE 0xf 155 156 /* 157 * identifiers for the variable-length options in tpdus 158 */ 159 160 #define TPP_acktime 0x85 161 #define TPP_residER 0x86 162 #define TPP_priority 0x87 163 #define TPP_transdelay 0x88 164 #define TPP_throughput 0x89 165 #define TPP_subseq 0x8a 166 #define TPP_flow_cntl_conf 0x8c /* not implemented */ 167 #define TPP_addl_info 0xe0 168 #define TPP_tpdu_size 0xc0 169 #define TPP_calling_sufx 0xc1 170 #define TPP_invalid_tpdu 0xc1 /* the bozos used a value twice */ 171 #define TPP_called_sufx 0xc2 172 #define TPP_checksum 0xc3 173 #define TPP_vers 0xc4 174 #define TPP_security 0xc5 175 #define TPP_addl_opt 0xc6 176 #define TPP_alt_class 0xc7 177 #define TPP_perf_meas 0xc8 /* local item : perf meas on, svp */ 178 179 /****************************************************** 180 * Some fundamental data types 181 *****************************************************/ 182 #ifndef TRUE 183 #define TRUE 1 184 #endif TRUE 185 186 #ifndef FALSE 187 #define FALSE 0 188 #endif FALSE 189 190 #define TP_LOCAL 22 191 #define TP_FOREIGN 33 192 193 #ifndef EOK 194 #define EOK 0 195 #endif EOK 196 197 #define TP_CLASS_0 (1<<0) 198 #define TP_CLASS_1 (1<<1) 199 #define TP_CLASS_2 (1<<2) 200 #define TP_CLASS_3 (1<<3) 201 #define TP_CLASS_4 (1<<4) 202 203 #define TP_FORCE 0x1 204 #define TP_STRICT 0x2 205 206 #ifndef MNULL 207 #define MNULL (struct mbuf *)0 208 #endif MNULL 209 /* if ../sys/mbuf.h gets MT_types up to 0x40, these will 210 * have to be changed: 211 */ 212 #define MT_XPD 0x44 213 #define MT_EOT 0x40 214 215 #define TP_ENOREF 0x80000000 216 217 typedef unsigned int SeqNum; 218 typedef unsigned short RefNum; 219 typedef int ProtoHook; 220 221 222 /****************************************************** 223 * Some fundamental constants 224 *****************************************************/ 225 226 #define TP_MIN_WIN 2048 227 #define TP_MAX_WIN 16384 228 #define TP_MAX_WIN_UNPRIV 8192 229 230 /****************************************************** 231 * Macro used all over, for driver 232 *****************************************************/ 233 234 #define DoEvent(x) \ 235 ((E.ev_number=(x)),(tp_driver(tpcb,&E))) 236 237 /****************************************************** 238 * Some macros used all over, for timestamping 239 *****************************************************/ 240 241 #define GET_CUR_TIME(tvalp) ((*tvalp) = time) 242 243 #define GET_TIME_SINCE(oldtvalp, diffp) {\ 244 (diffp)->tv_sec = time.tv_sec - (oldtvalp)->tv_sec;\ 245 (diffp)->tv_usec = time.tv_usec - (oldtvalp)->tv_usec;\ 246 if( (diffp)->tv_usec <0 ) {\ 247 (diffp)->tv_sec --;\ 248 (diffp)->tv_usec = 1000000 - (diffp)->tv_usec;\ 249 }\ 250 } 251 252 /****************************************************** 253 * Some macros used for address families 254 *****************************************************/ 255 256 #define satosiso(ADDR) ((struct sockaddr_iso *)(ADDR)) 257 #define satosin(ADDR) ((struct sockaddr_in *)(ADDR)) 258 259 /****************************************************** 260 * Macro used for changing types of mbufs 261 *****************************************************/ 262 263 #define CHANGE_MTYPE(m, TYPE)\ 264 if((m)->m_type != TYPE) { \ 265 mbstat.m_mtypes[(m)->m_type]--; mbstat.m_mtypes[TYPE]++; \ 266 (m)->m_type = TYPE; \ 267 } 268 269 /****************************************************** 270 * Macros used for adding options to a tpdu header and for 271 * parsing the headers. 272 * Options are variable-length and must be bcopy-d because on the 273 * RT your assignments must be N-word aligned for objects of length 274 * N. Such a drag. 275 *****************************************************/ 276 277 struct tp_vbp { 278 u_char tpv_code; 279 char tpv_len; 280 char tpv_val; 281 }; 282 #define vbptr(x) ((struct tp_vbp *)(x)) 283 #define vbval(x,type) (*((type *)&(((struct tp_vbp *)(x))->tpv_val))) 284 #define vbcode(x) (vbptr(x)->tpv_code) 285 #define vblen(x) (vbptr(x)->tpv_len) 286 287 #define vb_putval(dst,type,src)\ 288 bcopy((caddr_t)&(src),(caddr_t)&(((struct tp_vbp *)(dst))->tpv_val),\ 289 sizeof(type)) 290 291 #define vb_getval(src,type,dst)\ 292 bcopy((caddr_t)&(((struct tp_vbp *)(src))->tpv_val),(caddr_t)&(dst),sizeof(type)) 293 294 #define ADDOPTION(type, DU, len, src)\ 295 { register caddr_t P;\ 296 P = (caddr_t)(DU) + (int)((DU)->tpdu_li);\ 297 vbptr(P)->tpv_code = type;\ 298 vbptr(P)->tpv_len = len;\ 299 bcopy((caddr_t)&src, (caddr_t)&(vbptr(P)->tpv_val), (unsigned)len);\ 300 DU->tpdu_li += len+2;/* 1 for code, 1 for length */\ 301 } 302 /****************************************************** 303 * Macro for the local credit: 304 * uses max transmission unit for the ll 305 * (as modified by the max TPDU size negotiated) 306 *****************************************************/ 307 308 #if defined(ARGO_DEBUG)&&!defined(LOCAL_CREDIT_EXPAND) 309 #define LOCAL_CREDIT(tpcb) tp_local_credit(tpcb) 310 #else 311 #define LOCAL_CREDIT( tpcb ) {\ 312 register struct sockbuf *xxsb = &((tpcb)->tp_sock->so_rcv);\ 313 register int xxi = ((xxsb)->sb_hiwat-(xxsb)->sb_cc);\ 314 register int maxcredit = ((tpcb)->tp_xtd_format?0xffff:0xf);\ 315 xxi = (xxi<0) ? 0 : ((xxi)>>(tpcb)->tp_tpdusize);\ 316 xxi = MIN(xxi, maxcredit); \ 317 if (!(tpcb->tp_cebit_off)) { \ 318 (tpcb)->tp_lcredit = ROUND((tpcb)->tp_win_recv); \ 319 if (xxi < (tpcb)->tp_lcredit) { \ 320 (tpcb)->tp_lcredit = xxi; \ 321 } \ 322 } \ 323 else { \ 324 (tpcb)->tp_lcredit = xxi; \ 325 } \ 326 } 327 #endif ARGO_DEBUG 328 329 #ifdef KERNEL 330 331 #ifndef tp_NSTATES 332 333 #include "tp_states.h" 334 #include "tp_events.h" 335 #if defined(__STDC__) || defined(__cplusplus) 336 #undef ATTR 337 #define ATTR(X) ev_union.EV_ ## X 338 #endif /* defined(__STDC__) || defined(__cplusplus) */ 339 340 #endif tp_NSTATES 341 #endif KERNEL 342 343 #endif __TP_PARAM__ 344