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: 1.7 $
  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 struct dasd_diag_cms_label {
  48         u8 label_id[4];
  49         u8 vol_id[6];
  50         u16 version_id;
  51         u32 block_size;
  52         u32 origin_ptr;
  53         u32 usable_count;
  54         u32 formatted_count;
  55         u32 block_count;
  56         u32 used_count;
  57         u32 fst_size;
  58         u32 fst_count;
  59         u8 format_date[6];
  60         u8 reserved1[2];
  61         u32 disk_offset;
  62         u32 map_block;
  63         u32 hblk_disp;
  64         u32 user_disp;
  65         u8 reserved2[4];
  66         u8 segment_name[8];
  67 } __attribute__ ((packed));
  68
  69 #ifdef CONFIG_ARCH_S390X
  70 #define DASD_DIAG_FLAGA_DEFAULT         DASD_DIAG_FLAGA_FORMAT_64BIT
  71
  72 typedef u64 blocknum_t;
  73 typedef s64 sblocknum_t;
  74
  75 struct dasd_diag_bio {
  76         u8 type;
  77         u8 status;
  78         u8 spare1[2];
  79         u32 alet;
  80         blocknum_t block_number;
  81         u64 buffer;
  82 } __attribute__ ((packed, aligned(8)));
  83
  84 struct dasd_diag_init_io {
  85         u16 dev_nr;
  86         u8 flaga;
  87         u8 spare1[21];
  88         u32 block_size;
  89         u8 spare2[4];
  90         blocknum_t offset;
  91         sblocknum_t start_block;
  92         blocknum_t end_block;
  93         u8  spare3[8];
  94 } __attribute__ ((packed, aligned(8)));
  95
  96 struct dasd_diag_rw_io {
  97         u16 dev_nr;
  98         u8  flaga;
  99         u8  spare1[21];
 100         u8  key;
 101         u8  flags;
 102         u8  spare2[2];
 103         u32 block_count;
 104         u32 alet;
 105         u8  spare3[4];
 106         u64 interrupt_params;
 107         u64 bio_list;
 108         u8  spare4[8];
 109 } __attribute__ ((packed, aligned(8)));
 110 #else /* CONFIG_ARCH_S390X */
 111 #define DASD_DIAG_FLAGA_DEFAULT         0x0
 112
 113 typedef u32 blocknum_t;
 114 typedef s32 sblocknum_t;
 115
 116 struct dasd_diag_bio {
 117         u8 type;
 118         u8 status;
 119         u16 spare1;
 120         blocknum_t block_number;
 121         u32 alet;
 122         u32 buffer;
 123 } __attribute__ ((packed, aligned(8)));
 124
 125 struct dasd_diag_init_io {
 126         u16 dev_nr;
 127         u8 flaga;
 128         u8 spare1[21];
 129         u32 block_size;
 130         blocknum_t offset;
 131         sblocknum_t start_block;
 132         blocknum_t end_block;
 133         u8 spare2[24];
 134 } __attribute__ ((packed, aligned(8)));
 135
 136 struct dasd_diag_rw_io {
 137         u16 dev_nr;
 138         u8 flaga;
 139         u8 spare1[21];
 140         u8 key;
 141         u8 flags;
 142         u8 spare2[2];
 143         u32 block_count;
 144         u32 alet;
 145         u32 bio_list;
 146         u32 interrupt_params;
 147         u8 spare3[20];
 148 } __attribute__ ((packed, aligned(8)));
 149 #endif /* CONFIG_ARCH_S390X */