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rf_general.h revision 1.2 
      1 /*	$NetBSD: rf_general.h,v 1.2 1999/01/26 02:33:58 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 /*#define NOASSERT*/
     34 
     35 #ifndef _RF__RF_GENERAL_H_
     36 #define _RF__RF_GENERAL_H_
     37 
     38 /* error reporting and handling */
     39 
     40 #ifdef _KERNEL
     41 #include<sys/systm.h> /* printf, sprintf, and friends */
     42 #endif
     43 
     44 #define RF_ERRORMSG(s)            printf((s))
     45 #define RF_ERRORMSG1(s,a)         printf((s),(a))
     46 #define RF_ERRORMSG2(s,a,b)       printf((s),(a),(b))
     47 #define RF_ERRORMSG3(s,a,b,c)     printf((s),(a),(b),(c))
     48 #define RF_ERRORMSG4(s,a,b,c,d)   printf((s),(a),(b),(c),(d))
     49 #define RF_ERRORMSG5(s,a,b,c,d,e) printf((s),(a),(b),(c),(d),(e))
     50 #define perror(x)
     51 extern char rf_panicbuf[];
     52 #define RF_PANIC() {sprintf(rf_panicbuf,"raidframe error at line %d file %s",__LINE__,__FILE__); panic(rf_panicbuf);}
     53 
     54 #ifdef _KERNEL
     55 #ifdef RF_ASSERT
     56 #undef RF_ASSERT
     57 #endif /* RF_ASSERT */
     58 #ifndef NOASSERT
     59 #define RF_ASSERT(_x_) { \
     60   if (!(_x_)) { \
     61     sprintf(rf_panicbuf, \
     62         "raidframe error at line %d file %s (failed asserting %s)\n", \
     63         __LINE__, __FILE__, #_x_); \
     64     panic(rf_panicbuf); \
     65   } \
     66 }
     67 #else /* !NOASSERT */
     68 #define RF_ASSERT(x) {/*noop*/}
     69 #endif /* !NOASSERT */
     70 #else /* _KERNEL */
     71 #define RF_ASSERT(x) {/*noop*/}
     72 #endif /* _KERNEL */
     73 
     74 /* random stuff */
     75 #define RF_MAX(a,b) (((a) > (b)) ? (a) : (b))
     76 #define RF_MIN(a,b) (((a) < (b)) ? (a) : (b))
     77 
     78 /* divide-by-zero check */
     79 #define RF_DB0_CHECK(a,b) ( ((b)==0) ? 0 : (a)/(b) )
     80 
     81 /* get time of day */
     82 #define RF_GETTIME(_t) microtime(&(_t))
     83 
     84 /*
     85  * zero memory- not all bzero calls go through here, only
     86  * those which in the kernel may have a user address
     87  */
     88 
     89 #define RF_BZERO(_bp,_b,_l)  bzero(_b,_l)  /* XXX This is likely incorrect. GO*/
     90 
     91 
     92 #define RF_UL(x)           ((unsigned long) (x))
     93 #define RF_PGMASK          RF_UL(NBPG-1)
     94 #define RF_BLIP(x)         (NBPG - (RF_UL(x) & RF_PGMASK))    /* bytes left in page */
     95 #define RF_PAGE_ALIGNED(x) ((RF_UL(x) & RF_PGMASK) == 0)
     96 
     97 #if DKUSAGE > 0
     98 #define RF_DKU_END_IO(_unit_,_bp_) { \
     99 	int s = splbio(); \
    100 	dku_end_io(DKU_RAIDFRAME_BUS, _unit_, 0, \
    101 			(((_bp_)->b_flags&(B_READ|B_WRITE) == B_READ) ? \
    102 		    CAM_DIR_IN : CAM_DIR_OUT), \
    103 			(_bp_)->b_bcount); \
    104 	splx(s); \
    105 }
    106 #else /* DKUSAGE > 0 */
    107 #define RF_DKU_END_IO(unit) { /* noop */ }
    108 #endif /* DKUSAGE > 0 */
    109 
    110 #ifdef __STDC__
    111 #define RF_STRING(_str_) #_str_
    112 #else /* __STDC__ */
    113 #define RF_STRING(_str_) "_str_"
    114 #endif /* __STDC__ */
    115 
    116 #endif /* !_RF__RF_GENERAL_H_ */
    117