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/* SPDX-License-Identifier: GPL-2.0 */
/*
* 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>
* Copyright IBM Corp. 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)));
#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)));
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