rf_general.h revision 1.1
1 /* $NetBSD: rf_general.h,v 1.1 1998/11/13 04:20:30 oster Exp $ */ 2 /* 3 * Copyright (c) 1995 Carnegie-Mellon University. 4 * All rights reserved. 5 * 6 * Author: Mark Holland 7 * 8 * Permission to use, copy, modify and distribute this software and 9 * its documentation is hereby granted, provided that both the copyright 10 * notice and this permission notice appear in all copies of the 11 * software, derivative works or modified versions, and any portions 12 * thereof, and that both notices appear in supporting documentation. 13 * 14 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 15 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 16 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 17 * 18 * Carnegie Mellon requests users of this software to return to 19 * 20 * Software Distribution Coordinator or Software.Distribution (at) CS.CMU.EDU 21 * School of Computer Science 22 * Carnegie Mellon University 23 * Pittsburgh PA 15213-3890 24 * 25 * any improvements or extensions that they make and grant Carnegie the 26 * rights to redistribute these changes. 27 */ 28 29 /* 30 * rf_general.h -- some general-use definitions 31 */ 32 33 /* 34 * : 35 * Log: rf_general.h,v 36 * Revision 1.26 1996/08/09 16:44:57 jimz 37 * sunos port 38 * 39 * Revision 1.25 1996/08/07 21:08:57 jimz 40 * get NBPG defined for IRIX 41 * 42 * Revision 1.24 1996/08/06 22:02:06 jimz 43 * include linux/user.h for linux to get NBPG 44 * 45 * Revision 1.23 1996/07/27 23:36:08 jimz 46 * Solaris port of simulator 47 * 48 * Revision 1.22 1996/06/09 02:36:46 jimz 49 * lots of little crufty cleanup- fixup whitespace 50 * issues, comment #ifdefs, improve typing in some 51 * places (esp size-related) 52 * 53 * Revision 1.21 1996/05/30 23:22:16 jimz 54 * bugfixes of serialization, timing problems 55 * more cleanup 56 * 57 * Revision 1.20 1996/05/27 18:56:37 jimz 58 * more code cleanup 59 * better typing 60 * compiles in all 3 environments 61 * 62 * Revision 1.19 1996/05/24 22:17:04 jimz 63 * continue code + namespace cleanup 64 * typed a bunch of flags 65 * 66 * Revision 1.18 1996/05/23 21:46:35 jimz 67 * checkpoint in code cleanup (release prep) 68 * lots of types, function names have been fixed 69 * 70 * Revision 1.17 1996/05/23 00:33:23 jimz 71 * code cleanup: move all debug decls to rf_options.c, all extern 72 * debug decls to rf_options.h, all debug vars preceded by rf_ 73 * 74 * Revision 1.16 1996/05/21 18:53:13 jimz 75 * be sure that noop macros don't confuse conditionals and loops 76 * 77 * Revision 1.15 1996/05/18 19:51:34 jimz 78 * major code cleanup- fix syntax, make some types consistent, 79 * add prototypes, clean out dead code, et cetera 80 * 81 * Revision 1.14 1996/05/08 21:01:24 jimz 82 * fixed up enum type names that were conflicting with other 83 * enums and function names (ie, "panic") 84 * future naming trends will be towards RF_ and rf_ for 85 * everything raidframe-related 86 * 87 * Revision 1.13 1995/12/12 18:10:06 jimz 88 * MIN -> RF_MIN, MAX -> RF_MAX, ASSERT -> RF_ASSERT 89 * fix 80-column brain damage in comments 90 * 91 * Revision 1.12 1995/12/01 18:29:08 root 92 * added copyright info 93 * 94 * Revision 1.11 1995/09/19 22:59:52 jimz 95 * Add kernel macro RF_DKU_END_IO(). When DKUSAGE is not defined, 96 * this is a no-op. When it is defined, it calls dku_end_io() 97 * correctly given a raidframe unit number and a buf pointer. 98 * 99 * Revision 1.10 1995/07/03 18:13:56 holland 100 * changed kernel defn of GETTIME 101 * 102 * Revision 1.9 1995/07/02 15:07:42 holland 103 * bug fixes related to getting distributed sparing numbers 104 * 105 * Revision 1.8 1995/06/12 15:54:40 rachad 106 * Added garbege collection for log structured storage 107 * 108 * Revision 1.7 1995/06/03 19:18:16 holland 109 * changes related to kernelization: access traces 110 * changes related to distributed sparing: some bug fixes 111 * 112 * Revision 1.6 1995/05/01 13:28:00 holland 113 * parity range locks, locking disk requests, recon+parityscan in kernel, etc. 114 * 115 * Revision 1.5 1995/04/06 14:47:56 rachad 116 * merge completed 117 * 118 * Revision 1.4 1995/03/15 20:45:23 holland 119 * distr sparing changes. 120 * 121 * Revision 1.3 1995/02/03 22:31:36 holland 122 * many changes related to kernelization 123 * 124 * Revision 1.2 1994/11/29 21:37:10 danner 125 * Added divide by zero check. 126 * 127 */ 128 129 /*#define NOASSERT*/ 130 131 #ifndef _RF__RF_GENERAL_H_ 132 #define _RF__RF_GENERAL_H_ 133 134 #ifdef _KERNEL 135 #define KERNEL 136 #endif 137 138 #if !defined(KERNEL) && !defined(NOASSERT) 139 #include <assert.h> 140 #endif /* !KERNEL && !NOASSERT */ 141 142 /* error reporting and handling */ 143 144 #ifndef KERNEL 145 146 #define RF_ERRORMSG(s) fprintf(stderr,(s)) 147 #define RF_ERRORMSG1(s,a) fprintf(stderr,(s),(a)) 148 #define RF_ERRORMSG2(s,a,b) fprintf(stderr,(s),(a),(b)) 149 #define RF_ERRORMSG3(s,a,b,c) fprintf(stderr,(s),(a),(b),(c)) 150 #define RF_ERRORMSG4(s,a,b,c,d) fprintf(stderr,(s),(a),(b),(c),(d)) 151 #define RF_ERRORMSG5(s,a,b,c,d,e) fprintf(stderr,(s),(a),(b),(c),(d),(e)) 152 #ifndef NOASSERT 153 #define RF_ASSERT(x) {assert(x);} 154 #else /* !NOASSERT */ 155 #define RF_ASSERT(x) {/*noop*/} 156 #endif /* !NOASSERT */ 157 #define RF_PANIC() {printf("YIKES! Something terrible happened at line %d of file %s. Use a debugger.\n",__LINE__,__FILE__); abort();} 158 159 #else /* !KERNEL */ 160 #if defined(__NetBSD__) && defined(_KERNEL) 161 #include<sys/systm.h> /* printf, sprintf, and friends */ 162 #endif 163 #define RF_ERRORMSG(s) printf((s)) 164 #define RF_ERRORMSG1(s,a) printf((s),(a)) 165 #define RF_ERRORMSG2(s,a,b) printf((s),(a),(b)) 166 #define RF_ERRORMSG3(s,a,b,c) printf((s),(a),(b),(c)) 167 #define RF_ERRORMSG4(s,a,b,c,d) printf((s),(a),(b),(c),(d)) 168 #define RF_ERRORMSG5(s,a,b,c,d,e) printf((s),(a),(b),(c),(d),(e)) 169 #define perror(x) 170 extern char rf_panicbuf[]; 171 #define RF_PANIC() {sprintf(rf_panicbuf,"raidframe error at line %d file %s",__LINE__,__FILE__); panic(rf_panicbuf);} 172 173 #ifdef RF_ASSERT 174 #undef RF_ASSERT 175 #endif /* RF_ASSERT */ 176 #ifndef NOASSERT 177 #define RF_ASSERT(_x_) { \ 178 if (!(_x_)) { \ 179 sprintf(rf_panicbuf, \ 180 "raidframe error at line %d file %s (failed asserting %s)\n", \ 181 __LINE__, __FILE__, #_x_); \ 182 panic(rf_panicbuf); \ 183 } \ 184 } 185 #else /* !NOASSERT */ 186 #define RF_ASSERT(x) {/*noop*/} 187 #endif /* !NOASSERT */ 188 189 #endif /* !KERNEL */ 190 191 /* random stuff */ 192 #define RF_MAX(a,b) (((a) > (b)) ? (a) : (b)) 193 #define RF_MIN(a,b) (((a) < (b)) ? (a) : (b)) 194 195 /* divide-by-zero check */ 196 #define RF_DB0_CHECK(a,b) ( ((b)==0) ? 0 : (a)/(b) ) 197 198 /* get time of day */ 199 #ifdef KERNEL 200 #ifndef __NetBSD__ 201 extern struct timeval time; 202 #endif /* !__NetBSD__ */ 203 #define RF_GETTIME(_t) microtime(&(_t)) 204 #else /* KERNEL */ 205 #define RF_GETTIME(_t) gettimeofday(&(_t), NULL); 206 #endif /* KERNEL */ 207 208 /* 209 * zero memory- not all bzero calls go through here, only 210 * those which in the kernel may have a user address 211 */ 212 #ifdef KERNEL 213 #ifndef __NetBSD__ 214 #define RF_BZERO(_bp,_b,_l) if (IS_SYS_VA(_b)) bzero(_b,_l); else rf_BzeroWithRemap(_bp,_b,_l) 215 #else 216 217 #define RF_BZERO(_bp,_b,_l) bzero(_b,_l) /* XXX This is likely incorrect. GO*/ 218 #endif /* __NetBSD__ */ 219 #else /* KERNEL */ 220 #define RF_BZERO(_bp,_b,_l) bzero(_b,_l) 221 #endif /* KERNEL */ 222 223 #ifdef sun 224 #include <sys/param.h> 225 #ifndef NBPG 226 #define NBPG PAGESIZE 227 #endif /* !NBPG */ 228 #endif /* sun */ 229 230 #ifdef IRIX 231 #include <sys/tfp.h> 232 #define NBPG _PAGESZ 233 #endif /* IRIX */ 234 235 #ifdef LINUX 236 #include <linux/user.h> 237 #endif /* LINUX */ 238 239 #define RF_UL(x) ((unsigned long) (x)) 240 #define RF_PGMASK RF_UL(NBPG-1) 241 #define RF_BLIP(x) (NBPG - (RF_UL(x) & RF_PGMASK)) /* bytes left in page */ 242 #define RF_PAGE_ALIGNED(x) ((RF_UL(x) & RF_PGMASK) == 0) 243 244 #ifdef KERNEL 245 #ifndef __NetBSD__ 246 #include <dkusage.h> 247 #endif 248 #if DKUSAGE > 0 249 #define RF_DKU_END_IO(_unit_,_bp_) { \ 250 int s = splbio(); \ 251 dku_end_io(DKU_RAIDFRAME_BUS, _unit_, 0, \ 252 (((_bp_)->b_flags&(B_READ|B_WRITE) == B_READ) ? \ 253 CAM_DIR_IN : CAM_DIR_OUT), \ 254 (_bp_)->b_bcount); \ 255 splx(s); \ 256 } 257 #else /* DKUSAGE > 0 */ 258 #define RF_DKU_END_IO(unit) { /* noop */ } 259 #endif /* DKUSAGE > 0 */ 260 #endif /* KERNEL */ 261 262 #ifdef __STDC__ 263 #define RF_STRING(_str_) #_str_ 264 #else /* __STDC__ */ 265 #define RF_STRING(_str_) "_str_" 266 #endif /* __STDC__ */ 267 268 #endif /* !_RF__RF_GENERAL_H_ */ 269
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