blob: 4d511139dd0af5e6a6106ac2a7f7938900a9a969 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
#ifndef FDISK_SGI_LABEL_H
#define FDISK_SGI_LABEL_H
#include <stdint.h>
#include "bitops.h"
/*
* Copyright (C) Andreas Neuper, Sep 1998.
* This file may be modified and redistributed under
* the terms of the GNU Public License.
*/
struct device_parameter { /* 48 bytes */
unsigned char skew;
unsigned char gap1;
unsigned char gap2;
unsigned char sparecyl;
unsigned short pcylcount;
unsigned short head_vol0;
unsigned short ntrks; /* tracks in cyl 0 or vol 0 */
unsigned char cmd_tag_queue_depth;
unsigned char unused0;
unsigned short unused1;
unsigned short nsect; /* sectors/tracks in cyl 0 or vol 0 */
unsigned short bytes;
unsigned short ilfact;
unsigned int flags; /* controller flags */
unsigned int datarate;
unsigned int retries_on_error;
unsigned int ms_per_word;
unsigned short xylogics_gap1;
unsigned short xylogics_syncdelay;
unsigned short xylogics_readdelay;
unsigned short xylogics_gap2;
unsigned short xylogics_readgate;
unsigned short xylogics_writecont;
};
#define SGI_VOLHDR 0x00
/* 1 and 2 were used for drive types no longer supported by SGI */
#define SGI_SWAP 0x03
/* 4 and 5 were for filesystem types SGI haven't ever supported on MIPS CPUs */
#define SGI_VOLUME 0x06
#define SGI_EFS 0x07
#define SGI_LVOL 0x08
#define SGI_RLVOL 0x09
#define SGI_XFS 0x0a
#define SGI_XFSLOG 0x0b
#define SGI_XLV 0x0c
#define SGI_XVM 0x0d
#define ENTIRE_DISK SGI_VOLUME
/*
* controller flags
*/
#define SECTOR_SLIP 0x01
#define SECTOR_FWD 0x02
#define TRACK_FWD 0x04
#define TRACK_MULTIVOL 0x08
#define IGNORE_ERRORS 0x10
#define RESEEK 0x20
#define CMDTAGQ_ENABLE 0x40
typedef struct {
unsigned int magic; /* expect SGI_LABEL_MAGIC */
short boot_part; /* active boot partition */
short swap_part; /* active swap partition */
unsigned char boot_file[16]; /* name of the bootfile */
struct device_parameter devparam; /* 1 * 48 bytes */
struct volume_directory { /* 15 * 16 bytes */
unsigned char vol_file_name[8]; /* a character array */
unsigned int vol_file_start; /* number of logical block */
unsigned int vol_file_size; /* number of bytes */
} directory[15];
struct sgi_partition { /* 16 * 12 bytes */
unsigned int num_sectors; /* number of blocks */
unsigned int start_sector; /* must be cylinder aligned */
unsigned int id;
} partitions[16];
unsigned int csum;
unsigned int fillbytes;
} sgi_partition;
typedef struct {
unsigned int magic; /* looks like a magic number */
unsigned int a2;
unsigned int a3;
unsigned int a4;
unsigned int b1;
unsigned short b2;
unsigned short b3;
unsigned int c[16];
unsigned short d[3];
unsigned char scsi_string[50];
unsigned char serial[137];
unsigned short check1816;
unsigned char installer[225];
} sgiinfo;
#define SGI_LABEL_MAGIC 0x0be5a941
#define SGI_LABEL_MAGIC_SWAPPED 0x41a9e50b
#define SGI_INFO_MAGIC 0x00072959
#define SGI_INFO_MAGIC_SWAPPED 0x59290700
#define SSWAP16(x) (other_endian ? swab16(x) : (uint16_t)(x))
#define SSWAP32(x) (other_endian ? swab32(x) : (uint32_t)(x))
/* fdisk.c */
#define sgilabel ((sgi_partition *)cxt->firstsector)
#define sgiparam (sgilabel->devparam)
/* fdisksgilabel.c */
extern struct systypes sgi_sys_types[];
extern void sgi_list_table( struct fdisk_context *cxt, int xtra );
extern int sgi_change_sysid(struct fdisk_context *cxt, int i, int sys);
extern unsigned int sgi_get_start_sector(struct fdisk_context *cxt, int i );
extern unsigned int sgi_get_num_sectors(struct fdisk_context *cxt, int i );
extern int sgi_get_sysid(struct fdisk_context *cxt, int i );
extern void create_sgiinfo(struct fdisk_context *cxt);
extern void sgi_set_ilfact( void );
extern void sgi_set_rspeed( void );
extern void sgi_set_pcylcount( void );
extern void sgi_set_xcyl( void );
extern void sgi_set_ncyl( void );
extern void sgi_set_bootpartition(struct fdisk_context *cxt, int i );
extern void sgi_set_swappartition(struct fdisk_context *cxt, int i );
extern int sgi_get_bootpartition(struct fdisk_context *cxt);
extern int sgi_get_swappartition(struct fdisk_context *cxt);
extern void sgi_set_bootfile(struct fdisk_context *cxt);
#endif /* FDISK_SGI_LABEL_H */
|
