tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
28struct 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
45typedef u64 blocknum_t;
46typedef s64 sblocknum_t;
47
48struct 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
57struct 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
69struct 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
86typedef u32 blocknum_t;
87typedef s32 sblocknum_t;
88
89struct 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
98struct 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
109struct 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 */