drivers/s390/block/dasd_diag.h

   1 /*
   2  * File...........: linux/drivers/s390/block/dasd_diag.h
   3  * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
   4  * Based on.......: linux/drivers/s390/block/mdisk.h
   5  * ...............: by Hartmunt Penner <hpenner@de.ibm.com>
   6  * Bugreports.to..: <Linux390@de.ibm.com>
   7  * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
   8  *
   9  */
  10
  11 #define MDSK_WRITE_REQ 0x01
  12 #define MDSK_READ_REQ  0x02
  13
  14 #define INIT_BIO        0x00
  15 #define RW_BIO          0x01
  16 #define TERM_BIO        0x02
  17
  18 #define DEV_CLASS_FBA   0x01
  19 #define DEV_CLASS_ECKD  0x04
  20
  21 #define DASD_DIAG_LC_INT_CODE           132
  22 #define DASD_DIAG_LC_INT_STATUS         133
  23 #define DASD_DIAG_LC_INT_PARM_31BIT     128
  24 #define DASD_DIAG_LC_INT_PARM_64BIT     4536
  25 #define DASD_DIAG_CODE_31BIT            0x03
  26 #define DASD_DIAG_CODE_64BIT            0x07
  27
  28 #define DASD_DIAG_RWFLAG_ASYNC          0x02
  29 #define DASD_DIAG_RWFLAG_NOCACHE        0x01
  30
  31 #define DASD_DIAG_FLAGA_FORMAT_64BIT    0x80
  32
  33 struct dasd_diag_characteristics {
  34         u16 dev_nr;
  35         u16 rdc_len;
  36         u8 vdev_class;
  37         u8 vdev_type;
  38         u8 vdev_status;
  39         u8 vdev_flags;
  40         u8 rdev_class;
  41         u8 rdev_type;
  42         u8 rdev_model;
  43         u8 rdev_features;
  44 } __attribute__ ((packed, aligned(4)));
  45
  46
  47 #ifdef CONFIG_64BIT
  48 #define DASD_DIAG_FLAGA_DEFAULT         DASD_DIAG_FLAGA_FORMAT_64BIT
  49
  50 typedef u64 blocknum_t;
  51 typedef s64 sblocknum_t;
  52
  53 struct dasd_diag_bio {
  54         u8 type;
  55         u8 status;
  56         u8 spare1[2];
  57         u32 alet;
  58         blocknum_t block_number;
  59         void *buffer;
  60 } __attribute__ ((packed, aligned(8)));
  61
  62 struct dasd_diag_init_io {
  63         u16 dev_nr;
  64         u8 flaga;
  65         u8 spare1[21];
  66         u32 block_size;
  67         u8 spare2[4];
  68         blocknum_t offset;
  69         sblocknum_t start_block;
  70         blocknum_t end_block;
  71         u8  spare3[8];
  72 } __attribute__ ((packed, aligned(8)));
  73
  74 struct dasd_diag_rw_io {
  75         u16 dev_nr;
  76         u8  flaga;
  77         u8  spare1[21];
  78         u8  key;
  79         u8  flags;
  80         u8  spare2[2];
  81         u32 block_count;
  82         u32 alet;
  83         u8  spare3[4];
  84         u64 interrupt_params;
  85         struct dasd_diag_bio *bio_list;
  86         u8  spare4[8];
  87 } __attribute__ ((packed, aligned(8)));
  88 #else /* CONFIG_64BIT */
  89 #define DASD_DIAG_FLAGA_DEFAULT         0x0
  90
  91 typedef u32 blocknum_t;
  92 typedef s32 sblocknum_t;
  93
  94 struct dasd_diag_bio {
  95         u8 type;
  96         u8 status;
  97         u16 spare1;
  98         blocknum_t block_number;
  99         u32 alet;
 100         void *buffer;
 101 } __attribute__ ((packed, aligned(8)));
 102
 103 struct dasd_diag_init_io {
 104         u16 dev_nr;
 105         u8 flaga;
 106         u8 spare1[21];
 107         u32 block_size;
 108         blocknum_t offset;
 109         sblocknum_t start_block;
 110         blocknum_t end_block;
 111         u8 spare2[24];
 112 } __attribute__ ((packed, aligned(8)));
 113
 114 struct dasd_diag_rw_io {
 115         u16 dev_nr;
 116         u8 flaga;
 117         u8 spare1[21];
 118         u8 key;
 119         u8 flags;
 120         u8 spare2[2];
 121         u32 block_count;
 122         u32 alet;
 123         struct dasd_diag_bio *bio_list;
 124         u32 interrupt_params;
 125         u8 spare3[20];
 126 } __attribute__ ((packed, aligned(8)));
 127 #endif /* CONFIG_64BIT */