forked from luck/tmp_suning_uos_patched
fd49f41aa0
Add support for diag 250 access to dasd devices for 64 bit kernels. In addition fix detach/attach for diag disks. The VM control block needs to get recreated by a call to mdsk_init_io. Signed-off-by: Horst Hummel <horst.hummel@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
150 lines
2.9 KiB
C
150 lines
2.9 KiB
C
/*
|
|
* 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
|
|
*
|
|
* $Revision: 1.7 $
|
|
*/
|
|
|
|
#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_LC_INT_CODE 132
|
|
#define DASD_DIAG_LC_INT_STATUS 133
|
|
#define DASD_DIAG_LC_INT_PARM_31BIT 128
|
|
#define DASD_DIAG_LC_INT_PARM_64BIT 4536
|
|
#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)));
|
|
|
|
struct dasd_diag_cms_label {
|
|
u8 label_id[4];
|
|
u8 vol_id[6];
|
|
u16 version_id;
|
|
u32 block_size;
|
|
u32 origin_ptr;
|
|
u32 usable_count;
|
|
u32 formatted_count;
|
|
u32 block_count;
|
|
u32 used_count;
|
|
u32 fst_size;
|
|
u32 fst_count;
|
|
u8 format_date[6];
|
|
u8 reserved1[2];
|
|
u32 disk_offset;
|
|
u32 map_block;
|
|
u32 hblk_disp;
|
|
u32 user_disp;
|
|
u8 reserved2[4];
|
|
u8 segment_name[8];
|
|
} __attribute__ ((packed));
|
|
|
|
#ifdef CONFIG_ARCH_S390X
|
|
#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;
|
|
u64 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;
|
|
u64 bio_list;
|
|
u8 spare4[8];
|
|
} __attribute__ ((packed, aligned(8)));
|
|
#else /* CONFIG_ARCH_S390X */
|
|
#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;
|
|
u32 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;
|
|
u32 bio_list;
|
|
u32 interrupt_params;
|
|
u8 spare3[20];
|
|
} __attribute__ ((packed, aligned(8)));
|
|
#endif /* CONFIG_ARCH_S390X */
|