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gerrit-public.fairphone.software / kernel / msm-4.9 / 36426484fcaca2153616d6f3496b389a5b11bd9f / . / drivers / s390 / block / dasd_diag.h
blob: a803cc731586cc69191867eaf7eb7d6d55e1b232 [file] [log] [blame]
Horst Hummel138c0142006-06-29 14:58:12 +0200[diff] [blame]1/*
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]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>
Heiko Carstensa53c8fa2012-07-20 11:15:04 +0200[diff] [blame]6 * Copyright IBM Corp. 1999, 2000
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]7 *
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]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
Horst Hummelfd49f412005-09-03 15:58:00 -0700[diff] [blame]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
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]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
Horst Hummelfd49f412005-09-03 15:58:00 -0700[diff] [blame]41
Martin Schwidefsky347a8dc2006-01-06 00:19:28 -0800[diff] [blame]42#ifdef CONFIG_64BIT
Horst Hummelfd49f412005-09-03 15:58:00 -0700[diff] [blame]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;
Peter Oberparleiter86b368a2005-11-07 00:59:08 -0800[diff] [blame]54 void *buffer;
Horst Hummelfd49f412005-09-03 15:58:00 -0700[diff] [blame]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;
Peter Oberparleiter86b368a2005-11-07 00:59:08 -0800[diff] [blame]80 struct dasd_diag_bio *bio_list;
Horst Hummelfd49f412005-09-03 15:58:00 -0700[diff] [blame]81 u8 spare4[8];
82} __attribute__ ((packed, aligned(8)));
Martin Schwidefsky347a8dc2006-01-06 00:19:28 -0800[diff] [blame]83#else /* CONFIG_64BIT */
Horst Hummelfd49f412005-09-03 15:58:00 -0700[diff] [blame]84#define DASD_DIAG_FLAGA_DEFAULT 0x0
85
86typedef u32 blocknum_t;
87typedef s32 sblocknum_t;
88
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]89struct dasd_diag_bio {
90 u8 type;
91 u8 status;
92 u16 spare1;
Horst Hummelfd49f412005-09-03 15:58:00 -0700[diff] [blame]93 blocknum_t block_number;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]94 u32 alet;
Peter Oberparleiter86b368a2005-11-07 00:59:08 -0800[diff] [blame]95 void *buffer;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]96} __attribute__ ((packed, aligned(8)));
97
98struct dasd_diag_init_io {
99 u16 dev_nr;
Horst Hummelfd49f412005-09-03 15:58:00 -0700[diff] [blame]100 u8 flaga;
101 u8 spare1[21];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]102 u32 block_size;
Horst Hummelfd49f412005-09-03 15:58:00 -0700[diff] [blame]103 blocknum_t offset;
104 sblocknum_t start_block;
105 blocknum_t end_block;
106 u8 spare2[24];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]107} __attribute__ ((packed, aligned(8)));
108
109struct dasd_diag_rw_io {
110 u16 dev_nr;
Horst Hummelfd49f412005-09-03 15:58:00 -0700[diff] [blame]111 u8 flaga;
112 u8 spare1[21];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]113 u8 key;
114 u8 flags;
Horst Hummelfd49f412005-09-03 15:58:00 -0700[diff] [blame]115 u8 spare2[2];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]116 u32 block_count;
117 u32 alet;
Peter Oberparleiter86b368a2005-11-07 00:59:08 -0800[diff] [blame]118 struct dasd_diag_bio *bio_list;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]119 u32 interrupt_params;
Horst Hummelfd49f412005-09-03 15:58:00 -0700[diff] [blame]120 u8 spare3[20];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]121} __attribute__ ((packed, aligned(8)));
Martin Schwidefsky347a8dc2006-01-06 00:19:28 -0800[diff] [blame]122#endif /* CONFIG_64BIT */