97 lines
3.0 KiB
C
97 lines
3.0 KiB
C
#ifndef __PATHNAMES_H__
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#define __PATHNAMES_H__
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/**************************************************************************
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* *
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* Copyright (C) 1993, Silicon Graphics, Inc. *
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* *
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* These coded instructions, statements, and computer programs contain *
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* unpublished proprietary information of Silicon Graphics, Inc., and *
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* are protected by Federal copyright law. They may not be disclosed *
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* to third parties or copied or duplicated in any form, in whole or *
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* in part, without the prior written consent of Silicon Graphics, Inc. *
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* *
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**************************************************************************/
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#ident "$Revision: 1.2 $"
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/*****************************************************************************
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* defines for pathname manipulation.
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* These are inevitably dependant on the SGI device naming conventions!
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*
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* We make the assumption that while new controller names (such as
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* 'ips', 'xyl', 'dks') may appear, the #d#s# format following will
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* NOT change, likewise that the /dev/dsk and /dev/rdsk locations of
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* block and character files for disk devices will not change.
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*
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*****************************************************************************/
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struct pathanalysis {
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char ctlrname[10];
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int ctlr;
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int drive;
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int lun;
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int partition;
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};
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#define BLOCKPATHPREF "/dev/dsk/"
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#define BLOCKPATHLEN 9
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#define RAWPATHPREF "/dev/rdsk/"
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#define RAWPATHLEN 10
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/* dev_t to ctlr/unit/partition macros.
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* XXXdh this will change when & if jag & SCSI are changed to take
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* advantage of more minors in a long dev_t */
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#define PART_MASK (0xf)
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#define PARTOF(d) (d & PART_MASK)
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#define CTLR_UNITOF(d) (d & ~PART_MASK)
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/* ESDI and SMD */
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#define CTLROF(d) ((d >> 6) & 0x3)
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#define UNITOF(d) ((d >> 4) & 0x3)
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/* SCSI */
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#define SCSI_CTLROF(d) SCSI_EXT_CTLR(DKSC_CTLR(dev))
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#define OSCSI_UNITOF(d) ((d >> 5) & 0x7)
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#define SCSI_LUNOF(d) DKSC_LUN(dev)
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#define SCSI_UNITOF(d) DKSC_UNIT(dev)
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/* IPI */
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#define IPI_CTLROF(d) (major(d) & 0x3)
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#define IPI_UNITOF(d) ((d >> 4) & 0xf)
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/* jag SCSI */
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#define JAG_CTLROF(d) (major(d) & 0x7)
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#define JAG_UNITOF(d) ((d >> 4) & 0xf)
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/* defines for checks: check every device, OR accept a subset. (The latter
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* for use in the initial check of a volume which is being grown).
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*/
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#define COMPLETE_VOL 0
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#define PARTIAL_VOL 1
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#define MAXFDS 16
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#define streq(x,y) (strcmp(x,y)==0)
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/* defines to control printing of bad volumes. */
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#define EXISTING_VOLUME 0
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#define NEW_VOLUME 1
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/* Exported entrypoints */
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extern int checkformat(char *p);
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extern int pathtopart(char *p);
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extern char *pathtovhpath(char *p);
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extern char *devtopath(dev_t dev, int confirm);
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extern char *devtorawpath(dev_t dev, int confirm);
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extern void printpath(dev_t dev, int error, int confirm);
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#endif /* __PATHNAMES_H__ */
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