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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_CODE_31BIT 0x03
22 #define DASD_DIAG_CODE_64BIT 0x07
23
24 #define DASD_DIAG_RWFLAG_ASYNC 0x02
25 #define DASD_DIAG_RWFLAG_NOCACHE 0x01
26
27 #define DASD_DIAG_FLAGA_FORMAT_64BIT 0x80
28
29 struct dasd_diag_characteristics {
30 u16 dev_nr;
31 u16 rdc_len;
32 u8 vdev_class;
33 u8 vdev_type;
34 u8 vdev_status;
35 u8 vdev_flags;
36 u8 rdev_class;
37 u8 rdev_type;
38 u8 rdev_model;
39 u8 rdev_features;
40 } __attribute__ ((packed, aligned(4)));
41
42 #define DASD_DIAG_FLAGA_DEFAULT DASD_DIAG_FLAGA_FORMAT_64BIT
43
44 typedef u64 blocknum_t;
45 typedef s64 sblocknum_t;
46
47 struct dasd_diag_bio {
48 u8 type;
49 u8 status;
50 u8 spare1[2];
51 u32 alet;
52 blocknum_t block_number;
53 void *buffer;
54 } __attribute__ ((packed, aligned(8)));
55
56 struct dasd_diag_init_io {
57 u16 dev_nr;
58 u8 flaga;
59 u8 spare1[21];
60 u32 block_size;
61 u8 spare2[4];
62 blocknum_t offset;
63 sblocknum_t start_block;
64 blocknum_t end_block;
65 u8 spare3[8];
66 } __attribute__ ((packed, aligned(8)));
67
68 struct dasd_diag_rw_io {
69 u16 dev_nr;
70 u8 flaga;
71 u8 spare1[21];
72 u8 key;
73 u8 flags;
74 u8 spare2[2];
75 u32 block_count;
76 u32 alet;
77 u8 spare3[4];
78 u64 interrupt_params;
79 struct dasd_diag_bio *bio_list;
80 u8 spare4[8];
81 } __attribute__ ((packed, aligned(8)));