2 * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com>
3 * Bugreports.to..: <Linux390@de.ibm.com>
4 * Coypright IBM Corp. 1999, 2000
13 unsigned char perm:2; /* Permissions on this extent */
14 unsigned char zero:2; /* Must be zero */
15 unsigned char da:1; /* usually zero */
16 unsigned char diag:1; /* allow diagnose */
17 unsigned char zero2:2; /* zero */
18 } __attribute__ ((packed)) mask;
19 __u8 zero; /* Must be zero */
20 __u16 blk_size; /* Blocksize */
21 __u32 ext_loc; /* Extent locator */
22 __u32 ext_beg; /* logical number of block 0 in extent */
23 __u32 ext_end; /* logocal number of last block in extent */
24 } __attribute__ ((packed));
30 } __attribute__ ((packed)) operation;
34 } __attribute__ ((packed));
36 struct dasd_fba_characteristics {
40 unsigned char reserved:1;
41 unsigned char overrunnable:1;
42 unsigned char burst_byte:1;
43 unsigned char data_chain:1;
44 unsigned char zeros:4;
45 } __attribute__ ((packed)) bits;
46 } __attribute__ ((packed)) mode;
50 unsigned char zero0:1;
51 unsigned char removable:1;
52 unsigned char shared:1;
53 unsigned char zero1:1;
55 unsigned char zeros:3;
56 } __attribute__ ((packed)) bits;
57 } __attribute__ ((packed)) features;
69 } __attribute__ ((packed));
71 #endif /* DASD_FBA_H */