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  * $Revision: 1.9 $
  10  */
  11
  12 #define MDSK_WRITE_REQ 0x01
  13 #define MDSK_READ_REQ  0x02
  14
  15 #define INIT_BIO        0x00
  16 #define RW_BIO          0x01
  17 #define TERM_BIO        0x02
  18
  19 #define DEV_CLASS_FBA   0x01
  20 #define DEV_CLASS_ECKD  0x04
  21
  22 #define DASD_DIAG_LC_INT_CODE           132
  23 #define DASD_DIAG_LC_INT_STATUS         133
  24 #define DASD_DIAG_LC_INT_PARM_31BIT     128
  25 #define DASD_DIAG_LC_INT_PARM_64BIT     4536
  26 #define DASD_DIAG_CODE_31BIT            0x03
  27 #define DASD_DIAG_CODE_64BIT            0x07
  28
  29 #define DASD_DIAG_RWFLAG_ASYNC          0x02
  30 #define DASD_DIAG_RWFLAG_NOCACHE        0x01
  31
  32 #define DASD_DIAG_FLAGA_FORMAT_64BIT    0x80
  33
  34 struct dasd_diag_characteristics {
  35         u16 dev_nr;
  36         u16 rdc_len;
  37         u8 vdev_class;
  38         u8 vdev_type;
  39         u8 vdev_status;
  40         u8 vdev_flags;
  41         u8 rdev_class;
  42         u8 rdev_type;
  43         u8 rdev_model;
  44         u8 rdev_features;
  45 } __attribute__ ((packed, aligned(4)));
  46
  47
  48 #ifdef CONFIG_64BIT
  49 #define DASD_DIAG_FLAGA_DEFAULT         DASD_DIAG_FLAGA_FORMAT_64BIT
  50
  51 typedef u64 blocknum_t;
  52 typedef s64 sblocknum_t;
  53
  54 struct dasd_diag_bio {
  55         u8 type;
  56         u8 status;
  57         u8 spare1[2];
  58         u32 alet;
  59         blocknum_t block_number;
  60         void *buffer;
  61 } __attribute__ ((packed, aligned(8)));
  62
  63 struct dasd_diag_init_io {
  64         u16 dev_nr;
  65         u8 flaga;
  66         u8 spare1[21];
  67         u32 block_size;
  68         u8 spare2[4];
  69         blocknum_t offset;
  70         sblocknum_t start_block;
  71         blocknum_t end_block;
  72         u8  spare3[8];
  73 } __attribute__ ((packed, aligned(8)));
  74
  75 struct dasd_diag_rw_io {
  76         u16 dev_nr;
  77         u8  flaga;
  78         u8  spare1[21];
  79         u8  key;
  80         u8  flags;
  81         u8  spare2[2];
  82         u32 block_count;
  83         u32 alet;
  84         u8  spare3[4];
  85         u64 interrupt_params;
  86         struct dasd_diag_bio *bio_list;
  87         u8  spare4[8];
  88 } __attribute__ ((packed, aligned(8)));
  89 #else /* CONFIG_64BIT */
  90 #define DASD_DIAG_FLAGA_DEFAULT         0x0
  91
  92 typedef u32 blocknum_t;
  93 typedef s32 sblocknum_t;
  94
  95 struct dasd_diag_bio {
  96         u8 type;
  97         u8 status;
  98         u16 spare1;
  99         blocknum_t block_number;
 100         u32 alet;
 101         void *buffer;
 102 } __attribute__ ((packed, aligned(8)));
 103
 104 struct dasd_diag_init_io {
 105         u16 dev_nr;
 106         u8 flaga;
 107         u8 spare1[21];
 108         u32 block_size;
 109         blocknum_t offset;
 110         sblocknum_t start_block;
 111         blocknum_t end_block;
 112         u8 spare2[24];
 113 } __attribute__ ((packed, aligned(8)));
 114
 115 struct dasd_diag_rw_io {
 116         u16 dev_nr;
 117         u8 flaga;
 118         u8 spare1[21];
 119         u8 key;
 120         u8 flags;
 121         u8 spare2[2];
 122         u32 block_count;
 123         u32 alet;
 124         struct dasd_diag_bio *bio_list;
 125         u32 interrupt_params;
 126         u8 spare3[20];
 127 } __attribute__ ((packed, aligned(8)));
 128 #endif /* CONFIG_64BIT */