linux/drivers/s390/block/dasd_fba.h
Heiko Carstens a53c8fab3f s390/comments: unify copyright messages and remove file names
Remove the file name from the comment at top of many files. In most
cases the file name was wrong anyway, so it's rather pointless.

Also unify the IBM copyright statement. We did have a lot of sightly
different statements and wanted to change them one after another
whenever a file gets touched. However that never happened. Instead
people start to take the old/"wrong" statements to use as a template
for new files.
So unify all of them in one go.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
2012-07-20 11:15:04 +02:00

71 lines
1.7 KiB
C

/*
* Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
* Bugreports.to..: <Linux390@de.ibm.com>
* Coypright IBM Corp. 1999, 2000
*
*/
#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 */