1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/*
|
|
* File...........: linux/drivers/s390/block/dasd_fba.h
|
|
* Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
|
|
* Bugreports.to..: <Linux390@de.ibm.com>
|
|
* (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000
|
|
*
|
|
* $Revision: 1.6 $
|
|
*/
|
|
|
|
#ifndef DASD_FBA_H
|
|
#define DASD_FBA_H
|
|
|
|
struct DE_fba_data {
|
|
struct {
|
|
unsigned char perm:2; /* Permissions on this extent */
|
|
unsigned char zero:2; /* Must be zero */
|
|
unsigned char da:1; /* usually zero */
|
|
unsigned char diag:1; /* allow diagnose */
|
|
unsigned char zero2:2; /* zero */
|
|
} __attribute__ ((packed)) mask;
|
|
__u8 zero; /* Must be zero */
|
|
__u16 blk_size; /* Blocksize */
|
|
__u32 ext_loc; /* Extent locator */
|
|
__u32 ext_beg; /* logical number of block 0 in extent */
|
|
__u32 ext_end; /* logocal number of last block in extent */
|
|
} __attribute__ ((packed));
|
|
|
|
struct LO_fba_data {
|
|
struct {
|
|
unsigned char zero:4;
|
|
unsigned char cmd:4;
|
|
} __attribute__ ((packed)) operation;
|
|
__u8 auxiliary;
|
|
__u16 blk_ct;
|
|
__u32 blk_nr;
|
|
} __attribute__ ((packed));
|
|
|
|
struct dasd_fba_characteristics {
|
|
union {
|
|
__u8 c;
|
|
struct {
|
|
unsigned char reserved:1;
|
|
unsigned char overrunnable:1;
|
|
unsigned char burst_byte:1;
|
|
unsigned char data_chain:1;
|
|
unsigned char zeros:4;
|
|
} __attribute__ ((packed)) bits;
|
|
} __attribute__ ((packed)) mode;
|
|
union {
|
|
__u8 c;
|
|
struct {
|
|
unsigned char zero0:1;
|
|
unsigned char removable:1;
|
|
unsigned char shared:1;
|
|
unsigned char zero1:1;
|
|
unsigned char mam:1;
|
|
unsigned char zeros:3;
|
|
} __attribute__ ((packed)) bits;
|
|
} __attribute__ ((packed)) features;
|
|
__u8 dev_class;
|
|
__u8 unit_type;
|
|
__u16 blk_size;
|
|
__u32 blk_per_cycl;
|
|
__u32 blk_per_bound;
|
|
__u32 blk_bdsa;
|
|
__u32 reserved0;
|
|
__u16 reserved1;
|
|
__u16 blk_ce;
|
|
__u32 reserved2;
|
|
__u16 reserved3;
|
|
} __attribute__ ((packed));
|
|
|
|
#endif /* DASD_FBA_H */
|