projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
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 */ |