diff options
Diffstat (limited to 'drivers/s390/block/dasd_diag.h')
| -rw-r--r-- | drivers/s390/block/dasd_diag.h | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/drivers/s390/block/dasd_diag.h b/drivers/s390/block/dasd_diag.h new file mode 100644 index 00000000..4f71fbe6 --- /dev/null +++ b/drivers/s390/block/dasd_diag.h @@ -0,0 +1,123 @@ +/* + * File...........: linux/drivers/s390/block/dasd_diag.h + * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> + * Based on.......: linux/drivers/s390/block/mdisk.h + * ...............: by Hartmunt Penner <hpenner@de.ibm.com> + * Bugreports.to..: <Linux390@de.ibm.com> + * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000 + * + */ + +#define MDSK_WRITE_REQ 0x01 +#define MDSK_READ_REQ 0x02 + +#define INIT_BIO 0x00 +#define RW_BIO 0x01 +#define TERM_BIO 0x02 + +#define DEV_CLASS_FBA 0x01 +#define DEV_CLASS_ECKD 0x04 + +#define DASD_DIAG_CODE_31BIT 0x03 +#define DASD_DIAG_CODE_64BIT 0x07 + +#define DASD_DIAG_RWFLAG_ASYNC 0x02 +#define DASD_DIAG_RWFLAG_NOCACHE 0x01 + +#define DASD_DIAG_FLAGA_FORMAT_64BIT 0x80 + +struct dasd_diag_characteristics { + u16 dev_nr; + u16 rdc_len; + u8 vdev_class; + u8 vdev_type; + u8 vdev_status; + u8 vdev_flags; + u8 rdev_class; + u8 rdev_type; + u8 rdev_model; + u8 rdev_features; +} __attribute__ ((packed, aligned(4))); + + +#ifdef CONFIG_64BIT +#define DASD_DIAG_FLAGA_DEFAULT DASD_DIAG_FLAGA_FORMAT_64BIT + +typedef u64 blocknum_t; +typedef s64 sblocknum_t; + +struct dasd_diag_bio { + u8 type; + u8 status; + u8 spare1[2]; + u32 alet; + blocknum_t block_number; + void *buffer; +} __attribute__ ((packed, aligned(8))); + +struct dasd_diag_init_io { + u16 dev_nr; + u8 flaga; + u8 spare1[21]; + u32 block_size; + u8 spare2[4]; + blocknum_t offset; + sblocknum_t start_block; + blocknum_t end_block; + u8 spare3[8]; +} __attribute__ ((packed, aligned(8))); + +struct dasd_diag_rw_io { + u16 dev_nr; + u8 flaga; + u8 spare1[21]; + u8 key; + u8 flags; + u8 spare2[2]; + u32 block_count; + u32 alet; + u8 spare3[4]; + u64 interrupt_params; + struct dasd_diag_bio *bio_list; + u8 spare4[8]; +} __attribute__ ((packed, aligned(8))); +#else /* CONFIG_64BIT */ +#define DASD_DIAG_FLAGA_DEFAULT 0x0 + +typedef u32 blocknum_t; +typedef s32 sblocknum_t; + +struct dasd_diag_bio { + u8 type; + u8 status; + u16 spare1; + blocknum_t block_number; + u32 alet; + void *buffer; +} __attribute__ ((packed, aligned(8))); + +struct dasd_diag_init_io { + u16 dev_nr; + u8 flaga; + u8 spare1[21]; + u32 block_size; + blocknum_t offset; + sblocknum_t start_block; + blocknum_t end_block; + u8 spare2[24]; +} __attribute__ ((packed, aligned(8))); + +struct dasd_diag_rw_io { + u16 dev_nr; + u8 flaga; + u8 spare1[21]; + u8 key; + u8 flags; + u8 spare2[2]; + u32 block_count; + u32 alet; + struct dasd_diag_bio *bio_list; + u32 interrupt_params; + u8 spare3[20]; +} __attribute__ ((packed, aligned(8))); +#endif /* CONFIG_64BIT */ |