Release 4.7 drivers/s390/block/dasd_fba.h

/*
 * 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 */
Overall Contributors
Person
Tokens
Prop
Commits
CommitProp
linus torvalds
linus torvalds
271
93.45%
1
33.33%
martin schwidefsky
martin schwidefsky
18
6.21%
1
33.33%
heiko carstens
heiko carstens
1
0.34%
1
33.33%
Total
290
100.00%
3
100.00%
  
Directory: drivers/s390/block

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