patch-2.4.4 linux/include/asm-s390/vtoc.h
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- Lines: 235
- Date:
Wed Apr 11 19:02:28 2001
- Orig file:
v2.4.3/linux/include/asm-s390/vtoc.h
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.4.3/linux/include/asm-s390/vtoc.h linux/include/asm-s390/vtoc.h
@@ -0,0 +1,234 @@
+#ifndef __KERNEL__
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <errno.h>
+#include <ctype.h>
+#include <time.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+
+#include <linux/fs.h>
+#include <linux/types.h>
+#include <linux/hdreg.h>
+#include <linux/version.h>
+#endif
+#include <asm/dasd.h>
+
+#define LINE_LENGTH 80
+#define VTOC_START_CC 0x0
+#define VTOC_START_HH 0x1
+
+enum failure {unable_to_open,
+ unable_to_seek,
+ unable_to_write,
+ unable_to_read};
+
+typedef struct ttr {
+ __u16 tt;
+ __u8 r;
+} __attribute__ ((packed)) ttr_t;
+
+typedef struct cchhb {
+ __u16 cc;
+ __u16 hh;
+ __u8 b;
+} __attribute__ ((packed)) cchhb_t;
+
+typedef struct cchh {
+ __u16 cc;
+ __u16 hh;
+} __attribute__ ((packed)) cchh_t;
+
+typedef struct labeldate {
+ __u8 year;
+ __u16 day;
+} __attribute__ ((packed)) labeldate_t;
+
+
+typedef struct volume_label {
+ char volkey[4]; /* volume key = volume label */
+ char vollbl[4]; /* volume label */
+ char volid[6]; /* volume identifier */
+ __u8 security; /* security byte */
+ cchhb_t vtoc; /* VTOC address */
+ char res1[5]; /* reserved */
+ char cisize[4]; /* CI-size for FBA,... */
+ /* ...blanks for CKD */
+ char blkperci[4]; /* no of blocks per CI (FBA), blanks for CKD */
+ char labperci[4]; /* no of labels per CI (FBA), blanks for CKD */
+ char res2[4]; /* reserved */
+ char lvtoc[14]; /* owner code for LVTOC */
+ char res3[29]; /* reserved */
+} __attribute__ ((packed)) volume_label_t;
+
+
+typedef struct extent {
+ __u8 typeind; /* extent type indicator */
+ __u8 seqno; /* extent sequence number */
+ cchh_t llimit; /* starting point of this extent */
+ cchh_t ulimit; /* ending point of this extent */
+} __attribute__ ((packed)) extent_t;
+
+
+typedef struct dev_const {
+ __u16 DS4DSCYL; /* number of logical cyls */
+ __u16 DS4DSTRK; /* number of tracks in a logical cylinder */
+ __u16 DS4DEVTK; /* device track length */
+ __u8 DS4DEVI; /* non-last keyed record overhead */
+ __u8 DS4DEVL; /* last keyed record overhead */
+ __u8 DS4DEVK; /* non-keyed record overhead differential */
+ __u8 DS4DEVFG; /* flag byte */
+ __u16 DS4DEVTL; /* device tolerance */
+ __u8 DS4DEVDT; /* number of DSCB's per track */
+ __u8 DS4DEVDB; /* number of directory blocks per track */
+} __attribute__ ((packed)) dev_const_t;
+
+
+typedef struct format1_label {
+ char DS1DSNAM[44]; /* data set name */
+ __u8 DS1FMTID; /* format identifier */
+ char DS1DSSN[6]; /* data set serial number */
+ __u16 DS1VOLSQ; /* volume sequence number */
+ labeldate_t DS1CREDT; /* creation date: ydd */
+ labeldate_t DS1EXPDT; /* expiration date */
+ __u8 DS1NOEPV; /* number of extents on volume */
+ __u8 DS1NOBDB; /* no. of bytes used in last direction blk */
+ __u8 DS1FLAG1; /* flag 1 */
+ char DS1SYSCD[13]; /* system code */
+ labeldate_t DS1REFD; /* date last referenced */
+ __u8 DS1SMSFG; /* system managed storage indicators */
+ __u8 DS1SCXTF; /* sec. space extension flag byte */
+ __u16 DS1SCXTV; /* secondary space extension value */
+ __u8 DS1DSRG1; /* data set organisation byte 1 */
+ __u8 DS1DSRG2; /* data set organisation byte 2 */
+ __u8 DS1RECFM; /* record format */
+ __u8 DS1OPTCD; /* option code */
+ __u16 DS1BLKL; /* block length */
+ __u16 DS1LRECL; /* record length */
+ __u8 DS1KEYL; /* key length */
+ __u16 DS1RKP; /* relative key position */
+ __u8 DS1DSIND; /* data set indicators */
+ __u8 DS1SCAL1; /* secondary allocation flag byte */
+ char DS1SCAL3[3]; /* secondary allocation quantity */
+ ttr_t DS1LSTAR; /* last used track and block on track */
+ __u16 DS1TRBAL; /* space remaining on last used track */
+ __u16 res1; /* reserved */
+ extent_t DS1EXT1; /* first extent description */
+ extent_t DS1EXT2; /* second extent description */
+ extent_t DS1EXT3; /* third extent description */
+ cchhb_t DS1PTRDS; /* possible pointer to f2 or f3 DSCB */
+} __attribute__ ((packed)) format1_label_t;
+
+
+typedef struct format4_label {
+ char DS4KEYCD[44]; /* key code for VTOC labels: 44 times 0x04 */
+ __u8 DS4IDFMT; /* format identifier */
+ cchhb_t DS4HPCHR; /* highest address of a format 1 DSCB */
+ __u16 DS4DSREC; /* number of available DSCB's */
+ cchh_t DS4HCCHH; /* CCHH of next available alternate track */
+ __u16 DS4NOATK; /* number of remaining alternate tracks */
+ __u8 DS4VTOCI; /* VTOC indicators */
+ __u8 DS4NOEXT; /* number of extents in VTOC */
+ __u8 DS4SMSFG; /* system managed storage indicators */
+ __u8 DS4DEVAC; /* number of alternate cylinders.
+ Subtract from first two bytes of
+ DS4DEVSZ to get number of usable
+ cylinders. can be zero. valid
+ only if DS4DEVAV on. */
+ dev_const_t DS4DEVCT; /* device constants */
+ char DS4AMTIM[8]; /* VSAM time stamp */
+ char DS4AMCAT[3]; /* VSAM catalog indicator */
+ char DS4R2TIM[8]; /* VSAM volume/catalog match time stamp */
+ char res1[5]; /* reserved */
+ char DS4F6PTR[5]; /* pointer to first format 6 DSCB */
+ extent_t DS4VTOCE; /* VTOC extent description */
+ char res2[10]; /* reserved */
+ __u8 DS4EFLVL; /* extended free-space management level */
+ cchhb_t DS4EFPTR; /* pointer to extended free-space info */
+ char res3[9]; /* reserved */
+} __attribute__ ((packed)) format4_label_t;
+
+
+char * vtoc_ebcdic_enc (
+ unsigned char source[LINE_LENGTH],
+ unsigned char target[LINE_LENGTH],
+ int l);
+char * vtoc_ebcdic_dec (
+ unsigned char source[LINE_LENGTH],
+ unsigned char target[LINE_LENGTH],
+ int l);
+void vtoc_set_extent (
+ extent_t * ext,
+ __u8 typeind,
+ __u8 seqno,
+ cchh_t * lower,
+ cchh_t * upper);
+void vtoc_set_cchh (
+ cchh_t * addr,
+ __u16 cc,
+ __u16 hh);
+void vtoc_set_cchhb (
+ cchhb_t * addr,
+ __u16 cc,
+ __u16 hh,
+ __u8 b);
+void vtoc_set_date (
+ labeldate_t * d,
+ __u8 year,
+ __u16 day);
+
+
+int vtoc_read_volume_label (
+ char * device,
+ unsigned long vlabel_start,
+ volume_label_t * vlabel);
+int vtoc_write_volume_label (
+ char * device,
+ unsigned long vlabel_start,
+ volume_label_t * vlabel);
+void vtoc_read_label (
+ char *device,
+ unsigned long position,
+ format4_label_t *f4,
+ format1_label_t *f1);
+void vtoc_write_label (
+ char *device,
+ unsigned long position,
+ format4_label_t *f4,
+ format1_label_t *f1);
+void vtoc_init_format4_label (
+ struct hd_geometry *geo,
+ format4_label_t *f4lbl,
+ unsigned int usable_partitions,
+ unsigned int cylinders,
+ unsigned int tracks,
+ unsigned int blocks);
+void vtoc_init_format1_label (
+ char *volid,
+ unsigned int blksize,
+ extent_t *part_extent,
+ format1_label_t *f1);
+void vtoc_update_format4_label (
+ format4_label_t *f4,
+ cchhb_t *highest_f1,
+ __u8 unused_update,
+ __u16 freespace_update);
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
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