1138c014dcba74211dc4e835658f34a787c40cf17Horst Hummel/* 21da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * File...........: linux/drivers/s390/block/dasd_fba.h 31da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> 41da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * Bugreports.to..: <Linux390@de.ibm.com> 51da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000 61da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds * 71da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds */ 81da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 91da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#ifndef DASD_FBA_H 101da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#define DASD_FBA_H 111da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 121da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct DE_fba_data { 131da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct { 141da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char perm:2; /* Permissions on this extent */ 151da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char zero:2; /* Must be zero */ 161da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char da:1; /* usually zero */ 171da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char diag:1; /* allow diagnose */ 181da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char zero2:2; /* zero */ 191da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } __attribute__ ((packed)) mask; 201da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u8 zero; /* Must be zero */ 211da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u16 blk_size; /* Blocksize */ 221da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u32 ext_loc; /* Extent locator */ 231da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u32 ext_beg; /* logical number of block 0 in extent */ 241da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u32 ext_end; /* logocal number of last block in extent */ 251da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} __attribute__ ((packed)); 261da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 271da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct LO_fba_data { 281da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct { 291da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char zero:4; 301da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char cmd:4; 311da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } __attribute__ ((packed)) operation; 321da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u8 auxiliary; 331da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u16 blk_ct; 341da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u32 blk_nr; 351da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} __attribute__ ((packed)); 361da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 371da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvaldsstruct dasd_fba_characteristics { 381da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds union { 391da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u8 c; 401da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct { 411da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char reserved:1; 421da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char overrunnable:1; 431da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char burst_byte:1; 441da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char data_chain:1; 451da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char zeros:4; 461da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } __attribute__ ((packed)) bits; 471da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } __attribute__ ((packed)) mode; 481da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds union { 491da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u8 c; 501da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds struct { 511da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char zero0:1; 521da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char removable:1; 531da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char shared:1; 541da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char zero1:1; 551da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char mam:1; 561da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds unsigned char zeros:3; 571da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } __attribute__ ((packed)) bits; 581da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds } __attribute__ ((packed)) features; 591da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u8 dev_class; 601da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u8 unit_type; 611da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u16 blk_size; 621da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u32 blk_per_cycl; 631da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u32 blk_per_bound; 641da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u32 blk_bdsa; 651da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u32 reserved0; 661da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u16 reserved1; 671da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u16 blk_ce; 681da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u32 reserved2; 691da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds __u16 reserved3; 701da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds} __attribute__ ((packed)); 711da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds 721da177e4c3f41524e886b7f1b8a0c1fc7321cacLinus Torvalds#endif /* DASD_FBA_H */ 73