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/* $OpenBSD: rf_general.h,v 1.1 1999/01/11 14:29:23 niklas Exp $ */
/* $NetBSD: rf_general.h,v 1.1 1998/11/13 04:20:30 oster Exp $ */
/*
* Copyright (c) 1995 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Mark Holland
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
* School of Computer Science
* Carnegie Mellon University
* Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/
/*
* rf_general.h -- some general-use definitions
*/
/*
* :
* Log: rf_general.h,v
* Revision 1.26 1996/08/09 16:44:57 jimz
* sunos port
*
* Revision 1.25 1996/08/07 21:08:57 jimz
* get NBPG defined for IRIX
*
* Revision 1.24 1996/08/06 22:02:06 jimz
* include linux/user.h for linux to get NBPG
*
* Revision 1.23 1996/07/27 23:36:08 jimz
* Solaris port of simulator
*
* Revision 1.22 1996/06/09 02:36:46 jimz
* lots of little crufty cleanup- fixup whitespace
* issues, comment #ifdefs, improve typing in some
* places (esp size-related)
*
* Revision 1.21 1996/05/30 23:22:16 jimz
* bugfixes of serialization, timing problems
* more cleanup
*
* Revision 1.20 1996/05/27 18:56:37 jimz
* more code cleanup
* better typing
* compiles in all 3 environments
*
* Revision 1.19 1996/05/24 22:17:04 jimz
* continue code + namespace cleanup
* typed a bunch of flags
*
* Revision 1.18 1996/05/23 21:46:35 jimz
* checkpoint in code cleanup (release prep)
* lots of types, function names have been fixed
*
* Revision 1.17 1996/05/23 00:33:23 jimz
* code cleanup: move all debug decls to rf_options.c, all extern
* debug decls to rf_options.h, all debug vars preceded by rf_
*
* Revision 1.16 1996/05/21 18:53:13 jimz
* be sure that noop macros don't confuse conditionals and loops
*
* Revision 1.15 1996/05/18 19:51:34 jimz
* major code cleanup- fix syntax, make some types consistent,
* add prototypes, clean out dead code, et cetera
*
* Revision 1.14 1996/05/08 21:01:24 jimz
* fixed up enum type names that were conflicting with other
* enums and function names (ie, "panic")
* future naming trends will be towards RF_ and rf_ for
* everything raidframe-related
*
* Revision 1.13 1995/12/12 18:10:06 jimz
* MIN -> RF_MIN, MAX -> RF_MAX, ASSERT -> RF_ASSERT
* fix 80-column brain damage in comments
*
* Revision 1.12 1995/12/01 18:29:08 root
* added copyright info
*
* Revision 1.11 1995/09/19 22:59:52 jimz
* Add kernel macro RF_DKU_END_IO(). When DKUSAGE is not defined,
* this is a no-op. When it is defined, it calls dku_end_io()
* correctly given a raidframe unit number and a buf pointer.
*
* Revision 1.10 1995/07/03 18:13:56 holland
* changed kernel defn of GETTIME
*
* Revision 1.9 1995/07/02 15:07:42 holland
* bug fixes related to getting distributed sparing numbers
*
* Revision 1.8 1995/06/12 15:54:40 rachad
* Added garbege collection for log structured storage
*
* Revision 1.7 1995/06/03 19:18:16 holland
* changes related to kernelization: access traces
* changes related to distributed sparing: some bug fixes
*
* Revision 1.6 1995/05/01 13:28:00 holland
* parity range locks, locking disk requests, recon+parityscan in kernel, etc.
*
* Revision 1.5 1995/04/06 14:47:56 rachad
* merge completed
*
* Revision 1.4 1995/03/15 20:45:23 holland
* distr sparing changes.
*
* Revision 1.3 1995/02/03 22:31:36 holland
* many changes related to kernelization
*
* Revision 1.2 1994/11/29 21:37:10 danner
* Added divide by zero check.
*
*/
/*#define NOASSERT*/
#ifndef _RF__RF_GENERAL_H_
#define _RF__RF_GENERAL_H_
#ifdef _KERNEL
#define KERNEL
#endif
#if !defined(KERNEL) && !defined(NOASSERT)
#include <assert.h>
#endif /* !KERNEL && !NOASSERT */
/* error reporting and handling */
#ifndef KERNEL
#define RF_ERRORMSG(s) fprintf(stderr,(s))
#define RF_ERRORMSG1(s,a) fprintf(stderr,(s),(a))
#define RF_ERRORMSG2(s,a,b) fprintf(stderr,(s),(a),(b))
#define RF_ERRORMSG3(s,a,b,c) fprintf(stderr,(s),(a),(b),(c))
#define RF_ERRORMSG4(s,a,b,c,d) fprintf(stderr,(s),(a),(b),(c),(d))
#define RF_ERRORMSG5(s,a,b,c,d,e) fprintf(stderr,(s),(a),(b),(c),(d),(e))
#ifndef NOASSERT
#define RF_ASSERT(x) {assert(x);}
#else /* !NOASSERT */
#define RF_ASSERT(x) {/*noop*/}
#endif /* !NOASSERT */
#define RF_PANIC() {printf("YIKES! Something terrible happened at line %d of file %s. Use a debugger.\n",__LINE__,__FILE__); abort();}
#else /* !KERNEL */
#if (defined(__NetBSD__) || defined(__OpenBSD__)) && defined(_KERNEL)
#include<sys/systm.h> /* printf, sprintf, and friends */
#endif
#define RF_ERRORMSG(s) printf((s))
#define RF_ERRORMSG1(s,a) printf((s),(a))
#define RF_ERRORMSG2(s,a,b) printf((s),(a),(b))
#define RF_ERRORMSG3(s,a,b,c) printf((s),(a),(b),(c))
#define RF_ERRORMSG4(s,a,b,c,d) printf((s),(a),(b),(c),(d))
#define RF_ERRORMSG5(s,a,b,c,d,e) printf((s),(a),(b),(c),(d),(e))
#define perror(x)
extern char rf_panicbuf[];
#define RF_PANIC() {sprintf(rf_panicbuf,"raidframe error at line %d file %s",__LINE__,__FILE__); panic(rf_panicbuf);}
#ifdef RF_ASSERT
#undef RF_ASSERT
#endif /* RF_ASSERT */
#ifndef NOASSERT
#define RF_ASSERT(_x_) { \
if (!(_x_)) { \
sprintf(rf_panicbuf, \
"raidframe error at line %d file %s (failed asserting %s)\n", \
__LINE__, __FILE__, #_x_); \
panic(rf_panicbuf); \
} \
}
#else /* !NOASSERT */
#define RF_ASSERT(x) {/*noop*/}
#endif /* !NOASSERT */
#endif /* !KERNEL */
/* random stuff */
#define RF_MAX(a,b) (((a) > (b)) ? (a) : (b))
#define RF_MIN(a,b) (((a) < (b)) ? (a) : (b))
/* divide-by-zero check */
#define RF_DB0_CHECK(a,b) ( ((b)==0) ? 0 : (a)/(b) )
/* get time of day */
#ifdef KERNEL
#if !defined(__NetBSD__) && !defined(__OpenBSD__)
extern struct timeval time;
#endif /* !__NetBSD__ && !__OpenBSD__ */
#define RF_GETTIME(_t) microtime(&(_t))
#else /* KERNEL */
#define RF_GETTIME(_t) gettimeofday(&(_t), NULL);
#endif /* KERNEL */
/*
* zero memory- not all bzero calls go through here, only
* those which in the kernel may have a user address
*/
#ifdef KERNEL
#if !defined(__NetBSD__) && !defined(__OpenBSD__)
#define RF_BZERO(_bp,_b,_l) if (IS_SYS_VA(_b)) bzero(_b,_l); else rf_BzeroWithRemap(_bp,_b,_l)
#else
#define RF_BZERO(_bp,_b,_l) bzero(_b,_l) /* XXX This is likely incorrect. GO*/
#endif /* __NetBSD__ || __OpenBSD__ */
#else /* KERNEL */
#define RF_BZERO(_bp,_b,_l) bzero(_b,_l)
#endif /* KERNEL */
#ifdef sun
#include <sys/param.h>
#ifndef NBPG
#define NBPG PAGESIZE
#endif /* !NBPG */
#endif /* sun */
#ifdef IRIX
#include <sys/tfp.h>
#define NBPG _PAGESZ
#endif /* IRIX */
#ifdef LINUX
#include <linux/user.h>
#endif /* LINUX */
#define RF_UL(x) ((unsigned long) (x))
#define RF_PGMASK RF_UL(NBPG-1)
#define RF_BLIP(x) (NBPG - (RF_UL(x) & RF_PGMASK)) /* bytes left in page */
#define RF_PAGE_ALIGNED(x) ((RF_UL(x) & RF_PGMASK) == 0)
#ifdef KERNEL
#if !defined(__NetBSD__) && !defined(__OpenBSD__)
#include <dkusage.h>
#endif
#if DKUSAGE > 0
#define RF_DKU_END_IO(_unit_,_bp_) { \
int s = splbio(); \
dku_end_io(DKU_RAIDFRAME_BUS, _unit_, 0, \
(((_bp_)->b_flags&(B_READ|B_WRITE) == B_READ) ? \
CAM_DIR_IN : CAM_DIR_OUT), \
(_bp_)->b_bcount); \
splx(s); \
}
#else /* DKUSAGE > 0 */
#define RF_DKU_END_IO(unit) { /* noop */ }
#endif /* DKUSAGE > 0 */
#endif /* KERNEL */
#ifdef __STDC__
#define RF_STRING(_str_) #_str_
#else /* __STDC__ */
#define RF_STRING(_str_) "_str_"
#endif /* __STDC__ */
#endif /* !_RF__RF_GENERAL_H_ */
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