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- /*
- * 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
- *
- */
- #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 */
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