drivers/s390/block/dasd_diag.h

   1 /*
   2  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
   3  * Based on.......: linux/drivers/s390/block/mdisk.h
   4  * ...............: by Hartmunt Penner <hpenner@de.ibm.com>
   5  * Bugreports.to..: <Linux390@de.ibm.com>
   6  * Copyright IBM Corp. 1999, 2000
   7  *
   8  */
   9
  10 #define MDSK_WRITE_REQ 0x01
  11 #define MDSK_READ_REQ  0x02
  12
  13 #define INIT_BIO        0x00
  14 #define RW_BIO          0x01
  15 #define TERM_BIO        0x02
  16
  17 #define DEV_CLASS_FBA   0x01
  18 #define DEV_CLASS_ECKD  0x04
  19
  20 #define DASD_DIAG_CODE_31BIT            0x03
  21 #define DASD_DIAG_CODE_64BIT            0x07
  22
  23 #define DASD_DIAG_RWFLAG_ASYNC          0x02
  24 #define DASD_DIAG_RWFLAG_NOCACHE        0x01
  25
  26 #define DASD_DIAG_FLAGA_FORMAT_64BIT    0x80
  27
  28 struct dasd_diag_characteristics {
  29         u16 dev_nr;
  30         u16 rdc_len;
  31         u8 vdev_class;
  32         u8 vdev_type;
  33         u8 vdev_status;
  34         u8 vdev_flags;
  35         u8 rdev_class;
  36         u8 rdev_type;
  37         u8 rdev_model;
  38         u8 rdev_features;
  39 } __attribute__ ((packed, aligned(4)));
  40
  41
  42 #ifdef CONFIG_64BIT
  43 #define DASD_DIAG_FLAGA_DEFAULT         DASD_DIAG_FLAGA_FORMAT_64BIT
  44
  45 typedef u64 blocknum_t;
  46 typedef s64 sblocknum_t;
  47
  48 struct dasd_diag_bio {
  49         u8 type;
  50         u8 status;
  51         u8 spare1[2];
  52         u32 alet;
  53         blocknum_t block_number;
  54         void *buffer;
  55 } __attribute__ ((packed, aligned(8)));
  56
  57 struct dasd_diag_init_io {
  58         u16 dev_nr;
  59         u8 flaga;
  60         u8 spare1[21];
  61         u32 block_size;
  62         u8 spare2[4];
  63         blocknum_t offset;
  64         sblocknum_t start_block;
  65         blocknum_t end_block;
  66         u8  spare3[8];
  67 } __attribute__ ((packed, aligned(8)));
  68
  69 struct dasd_diag_rw_io {
  70         u16 dev_nr;
  71         u8  flaga;
  72         u8  spare1[21];
  73         u8  key;
  74         u8  flags;
  75         u8  spare2[2];
  76         u32 block_count;
  77         u32 alet;
  78         u8  spare3[4];
  79         u64 interrupt_params;
  80         struct dasd_diag_bio *bio_list;
  81         u8  spare4[8];
  82 } __attribute__ ((packed, aligned(8)));
  83 #else /* CONFIG_64BIT */
  84 #define DASD_DIAG_FLAGA_DEFAULT         0x0
  85
  86 typedef u32 blocknum_t;
  87 typedef s32 sblocknum_t;
  88
  89 struct dasd_diag_bio {
  90         u8 type;
  91         u8 status;
  92         u16 spare1;
  93         blocknum_t block_number;
  94         u32 alet;
  95         void *buffer;
  96 } __attribute__ ((packed, aligned(8)));
  97
  98 struct dasd_diag_init_io {
  99         u16 dev_nr;
 100         u8 flaga;
 101         u8 spare1[21];
 102         u32 block_size;
 103         blocknum_t offset;
 104         sblocknum_t start_block;
 105         blocknum_t end_block;
 106         u8 spare2[24];
 107 } __attribute__ ((packed, aligned(8)));
 108
 109 struct dasd_diag_rw_io {
 110         u16 dev_nr;
 111         u8 flaga;
 112         u8 spare1[21];
 113         u8 key;
 114         u8 flags;
 115         u8 spare2[2];
 116         u32 block_count;
 117         u32 alet;
 118         struct dasd_diag_bio *bio_list;
 119         u32 interrupt_params;
 120         u8 spare3[20];
 121 } __attribute__ ((packed, aligned(8)));
 122 #endif /* CONFIG_64BIT */