/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
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* Based on.......: linux/drivers/s390/block/mdisk.h
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* ...............: by Hartmunt Penner <hpenner@de.ibm.com>
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* Bugreports.to..: <Linux390@de.ibm.com>
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* Copyright IBM Corp. 1999, 2000
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*
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*/
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#define MDSK_WRITE_REQ 0x01
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#define MDSK_READ_REQ 0x02
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#define INIT_BIO 0x00
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#define RW_BIO 0x01
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#define TERM_BIO 0x02
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#define DEV_CLASS_FBA 0x01
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#define DEV_CLASS_ECKD 0x04
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#define DASD_DIAG_CODE_31BIT 0x03
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#define DASD_DIAG_CODE_64BIT 0x07
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#define DASD_DIAG_RWFLAG_ASYNC 0x02
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#define DASD_DIAG_RWFLAG_NOCACHE 0x01
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#define DASD_DIAG_FLAGA_FORMAT_64BIT 0x80
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struct dasd_diag_characteristics {
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u16 dev_nr;
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u16 rdc_len;
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u8 vdev_class;
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u8 vdev_type;
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u8 vdev_status;
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u8 vdev_flags;
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u8 rdev_class;
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u8 rdev_type;
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u8 rdev_model;
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u8 rdev_features;
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} __attribute__ ((packed, aligned(4)));
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#define DASD_DIAG_FLAGA_DEFAULT DASD_DIAG_FLAGA_FORMAT_64BIT
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typedef u64 blocknum_t;
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typedef s64 sblocknum_t;
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struct dasd_diag_bio {
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u8 type;
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u8 status;
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u8 spare1[2];
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u32 alet;
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blocknum_t block_number;
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void *buffer;
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} __attribute__ ((packed, aligned(8)));
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struct dasd_diag_init_io {
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u16 dev_nr;
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u8 flaga;
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u8 spare1[21];
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u32 block_size;
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u8 spare2[4];
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blocknum_t offset;
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sblocknum_t start_block;
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blocknum_t end_block;
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u8 spare3[8];
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} __attribute__ ((packed, aligned(8)));
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struct dasd_diag_rw_io {
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u16 dev_nr;
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u8 flaga;
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u8 spare1[21];
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u8 key;
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u8 flags;
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u8 spare2[2];
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u32 block_count;
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u32 alet;
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u8 spare3[4];
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u64 interrupt_params;
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struct dasd_diag_bio *bio_list;
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u8 spare4[8];
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} __attribute__ ((packed, aligned(8)));
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