| /* |
| * File...........: s390-tools/fdasd/fdasd.h |
| * Author(s)......: Volker Sameske <sameske@de.ibm.com> |
| * Horst Hummel <Horst.Hummel@de.ibm.com> |
| * Bugreports.to..: <Linux390@de.ibm.com> |
| * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 2001-2002 |
| * |
| * History of changes (starts March 2001) |
| * version 1.01 - menu entry 's' to show mapping devnode - DS name |
| * 1.02 - DS names count now from 0001 instead from 0000 |
| * 1.03 - volser checks: 'AA AAA' to 'AAAAA ' |
| * - removed dependency to kernel headers. |
| * 1.04 - added -p option |
| * 1.05 - new API policy, set it back to 0 |
| */ |
| #ifndef FDASD_H |
| #define FDASD_H |
| |
| #include <parted/vtoc.h> |
| |
| /***************************************************************************** |
| * SECTION: Definitions needed for DASD-API (see dasd.h) * |
| *****************************************************************************/ |
| |
| #define DASD_IOCTL_LETTER 'D' |
| |
| #define DASD_PARTN_BITS 2 |
| |
| #define PARTITION_LINUX_SWAP 0x82 |
| #define PARTITION_LINUX 0x83 |
| #define PARTITION_LINUX_EXT 0x85 |
| #define PARTITION_LINUX_LVM 0x8e |
| #define PARTITION_LINUX_RAID 0xfd |
| #define PARTITION_LINUX_LVM_OLD 0xfe |
| |
| #define PART_TYPE_NATIVE "NATIVE" |
| #define PART_TYPE_SWAP "SWAP " |
| #define PART_TYPE_RAID "RAID " |
| #define PART_TYPE_LVM "LVM " |
| |
| #ifdef DEBUG_DASD |
| #define PDEBUG fprintf(stderr, "%s:%d:%s\n", \ |
| __FILE__, \ |
| __LINE__, \ |
| __PRETTY_FUNCTION__); |
| #else |
| #define PDEBUG |
| #endif |
| |
| /* |
| * struct dasd_information_t |
| * represents any data about the device, which is visible to userspace. |
| * including foramt and featueres. |
| */ |
| typedef struct dasd_information_t { |
| unsigned int devno; /* S/390 devno */ |
| unsigned int real_devno; /* for aliases */ |
| unsigned int schid; /* S/390 subchannel identifier */ |
| unsigned int cu_type : 16; /* from SenseID */ |
| unsigned int cu_model : 8; /* from SenseID */ |
| unsigned int dev_type : 16; /* from SenseID */ |
| unsigned int dev_model : 8; /* from SenseID */ |
| unsigned int open_count; |
| unsigned int req_queue_len; |
| unsigned int chanq_len; /* length of chanq */ |
| char type[4]; /* from discipline.name, 'none' for */ |
| /* unknown */ |
| unsigned int status; /* current device level */ |
| unsigned int label_block; /* where to find the VOLSER */ |
| unsigned int FBA_layout; /* fixed block size (like AIXVOL) */ |
| unsigned int characteristics_size; |
| unsigned int confdata_size; |
| char characteristics[64]; /* from read_device_characteristics */ |
| char configuration_data[256]; /* from read_configuration_data */ |
| } dasd_information_t; |
| |
| /* |
| * struct format_data_t |
| * represents all data necessary to format a dasd |
| */ |
| typedef struct format_data_t { |
| int start_unit; /* from track */ |
| int stop_unit; /* to track */ |
| int blksize; /* sectorsize */ |
| int intensity; |
| } format_data_t; |
| |
| /* |
| * values to be used for format_data_t.intensity |
| * 0/8: normal format |
| * 1/9: also write record zero |
| * 3/11: also write home address |
| * 4/12: invalidate track |
| */ |
| #define DASD_FMT_INT_FMT_R0 1 /* write record zero */ |
| #define DASD_FMT_INT_FMT_HA 2 /* write home address, also set FMT_R0 ! */ |
| #define DASD_FMT_INT_INVAL 4 /* invalidate tracks */ |
| #define DASD_FMT_INT_COMPAT 8 /* use OS/390 compatible disk layout */ |
| |
| |
| /* Disable the volume (for Linux) */ |
| #define BIODASDDISABLE _IO(DASD_IOCTL_LETTER,0) |
| /* Enable the volume (for Linux) */ |
| #define BIODASDENABLE _IO(DASD_IOCTL_LETTER,1) |
| |
| /* retrieve API version number */ |
| #define DASDAPIVER _IOR(DASD_IOCTL_LETTER,0,int) |
| /* Get information on a dasd device (enhanced) */ |
| #define BIODASDINFO _IOR(DASD_IOCTL_LETTER,1,dasd_information_t) |
| |
| |
| /***************************************************************************** |
| * SECTION: Further IOCTL Definitions (see fs.h) * |
| *****************************************************************************/ |
| /* re-read partition table */ |
| #define BLKRRPART _IO(0x12,95) |
| /* get block device sector size */ |
| #define BLKSSZGET _IO(0x12,104) |
| |
| /***************************************************************************** |
| * SECTION: Definition from hdreq.h * |
| *****************************************************************************/ |
| |
| struct fdasd_hd_geometry { |
| unsigned char heads; |
| unsigned char sectors; |
| unsigned short cylinders; |
| unsigned long start; |
| }; |
| |
| /* get device geometry */ |
| #define HDIO_GETGEO 0x0301 |
| |
| /***************************************************************************** |
| * SECTION: FDASD internal types * |
| *****************************************************************************/ |
| |
| #define DASD_MIN_API_VERSION 0 |
| |
| #define DEFAULT_FDASD_CONF "/etc/fdasd.conf" /* default config file */ |
| |
| #define PARTN_MASK ((1 << DASD_PARTN_BITS) - 1) |
| #define USABLE_PARTITIONS ((1 << DASD_PARTN_BITS) - 1) |
| |
| #define FDASD_VERSION "1.05" |
| #define FDASD_ERROR "fdasd error: " |
| #define DEVICE "device" |
| #define DISC "disc" |
| #define PART "part" |
| |
| #define ALTERNATE_CYLINDERS_USED 0x10 |
| |
| typedef struct partition_info { |
| u_int8_t used; |
| unsigned long start_trk; |
| unsigned long end_trk; |
| unsigned long len_trk; |
| unsigned long fspace_trk; |
| format1_label_t *f1; |
| struct partition_info *next; |
| struct partition_info *prev; |
| u_int8_t type; |
| } partition_info_t; |
| |
| typedef struct config_data { |
| unsigned long start; |
| unsigned long stop; |
| } config_data_t; |
| |
| typedef struct fdasd_anchor { |
| int vlabel_changed; |
| int vtoc_changed; |
| int devname_specified; |
| int volid_specified; |
| int config_specified; |
| int auto_partition; |
| int print_table; |
| int big_disk; |
| int silent; |
| int verbose; |
| int devno; |
| int option_reuse; |
| int option_recreate; |
| int partno[USABLE_PARTITIONS]; |
| u_int16_t dev_type; |
| unsigned int used_partitions; |
| unsigned long label_pos; |
| unsigned int blksize; |
| unsigned long fspace_trk; |
| format4_label_t *f4; |
| format5_label_t *f5; |
| format7_label_t *f7; |
| partition_info_t *first; |
| partition_info_t *last; |
| volume_label_t *vlabel; |
| config_data_t confdata[USABLE_PARTITIONS]; |
| struct fdasd_hd_geometry geo; |
| } fdasd_anchor_t; |
| |
| enum offset {lower, upper}; |
| |
| enum fdasd_failure { |
| unable_to_open_disk, |
| unable_to_seek_disk, |
| unable_to_read_disk, |
| read_only_disk, |
| unable_to_ioctl, |
| api_version_mismatch, |
| wrong_disk_type, |
| wrong_disk_format, |
| disk_in_use, |
| config_syntax_error, |
| vlabel_corrupted, |
| dsname_corrupted, |
| malloc_failed, |
| device_verification_failed |
| }; |
| |
| void fdasd_cleanup (fdasd_anchor_t *anchor); |
| void fdasd_initialize_anchor (fdasd_anchor_t * anc); |
| void fdasd_get_geometry (fdasd_anchor_t *anc, int fd); |
| void fdasd_check_api_version (fdasd_anchor_t *anc, int fd); |
| int fdasd_check_volume (fdasd_anchor_t *anc, int fd); |
| int fdasd_write_labels (fdasd_anchor_t *anc, int fd); |
| int fdasd_invalid_vtoc_pointer(fdasd_anchor_t *anc); |
| void fdasd_recreate_vtoc(fdasd_anchor_t *anc); |
| partition_info_t * fdasd_add_partition (fdasd_anchor_t *anc, |
| unsigned int start, unsigned int stop); |
| int fdasd_prepare_labels (fdasd_anchor_t *anc, int fd) ; |
| |
| #endif /* FDASD_H */ |
