Release 4.7 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>
 * 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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Directory: drivers/s390/block

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