diff options
Diffstat (limited to 'drivers/s390/block/dasd_fba.h')
| -rw-r--r-- | drivers/s390/block/dasd_fba.h | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/s390/block/dasd_fba.h b/drivers/s390/block/dasd_fba.h new file mode 100644 index 000000000000..624f0402ee22 --- /dev/null +++ b/drivers/s390/block/dasd_fba.h | |||
| @@ -0,0 +1,73 @@ | |||
| 1 | /* | ||
| 2 | * File...........: linux/drivers/s390/block/dasd_fba.h | ||
| 3 | * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> | ||
| 4 | * Bugreports.to..: <Linux390@de.ibm.com> | ||
| 5 | * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000 | ||
| 6 | * | ||
| 7 | * $Revision: 1.6 $ | ||
| 8 | */ | ||
| 9 | |||
| 10 | #ifndef DASD_FBA_H | ||
| 11 | #define DASD_FBA_H | ||
| 12 | |||
| 13 | struct DE_fba_data { | ||
| 14 | struct { | ||
| 15 | unsigned char perm:2; /* Permissions on this extent */ | ||
| 16 | unsigned char zero:2; /* Must be zero */ | ||
| 17 | unsigned char da:1; /* usually zero */ | ||
| 18 | unsigned char diag:1; /* allow diagnose */ | ||
| 19 | unsigned char zero2:2; /* zero */ | ||
| 20 | } __attribute__ ((packed)) mask; | ||
| 21 | __u8 zero; /* Must be zero */ | ||
| 22 | __u16 blk_size; /* Blocksize */ | ||
| 23 | __u32 ext_loc; /* Extent locator */ | ||
| 24 | __u32 ext_beg; /* logical number of block 0 in extent */ | ||
| 25 | __u32 ext_end; /* logocal number of last block in extent */ | ||
| 26 | } __attribute__ ((packed)); | ||
| 27 | |||
| 28 | struct LO_fba_data { | ||
| 29 | struct { | ||
| 30 | unsigned char zero:4; | ||
| 31 | unsigned char cmd:4; | ||
| 32 | } __attribute__ ((packed)) operation; | ||
| 33 | __u8 auxiliary; | ||
| 34 | __u16 blk_ct; | ||
| 35 | __u32 blk_nr; | ||
| 36 | } __attribute__ ((packed)); | ||
| 37 | |||
| 38 | struct dasd_fba_characteristics { | ||
| 39 | union { | ||
| 40 | __u8 c; | ||
| 41 | struct { | ||
| 42 | unsigned char reserved:1; | ||
| 43 | unsigned char overrunnable:1; | ||
| 44 | unsigned char burst_byte:1; | ||
| 45 | unsigned char data_chain:1; | ||
| 46 | unsigned char zeros:4; | ||
| 47 | } __attribute__ ((packed)) bits; | ||
| 48 | } __attribute__ ((packed)) mode; | ||
| 49 | union { | ||
| 50 | __u8 c; | ||
| 51 | struct { | ||
| 52 | unsigned char zero0:1; | ||
| 53 | unsigned char removable:1; | ||
| 54 | unsigned char shared:1; | ||
| 55 | unsigned char zero1:1; | ||
| 56 | unsigned char mam:1; | ||
| 57 | unsigned char zeros:3; | ||
| 58 | } __attribute__ ((packed)) bits; | ||
| 59 | } __attribute__ ((packed)) features; | ||
| 60 | __u8 dev_class; | ||
| 61 | __u8 unit_type; | ||
| 62 | __u16 blk_size; | ||
| 63 | __u32 blk_per_cycl; | ||
| 64 | __u32 blk_per_bound; | ||
| 65 | __u32 blk_bdsa; | ||
| 66 | __u32 reserved0; | ||
| 67 | __u16 reserved1; | ||
| 68 | __u16 blk_ce; | ||
| 69 | __u32 reserved2; | ||
| 70 | __u16 reserved3; | ||
| 71 | } __attribute__ ((packed)); | ||
| 72 | |||
| 73 | #endif /* DASD_FBA_H */ | ||