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[/] [or1k/] [trunk/] [linux/] [linux-2.4/] [drivers/] [s390/] [block/] [dasd_eckd.h] - Rev 1765
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/* * File...........: linux/drivers/s390/block/dasd_eckd.h * Author(s)......: Holger Smolinski <Holger.Smolinski@de.ibm.com> * Horst Hummel <Horst.Hummel@de.ibm.com> * Bugreports.to..: <Linux390@de.ibm.com> * (C) IBM Corporation, IBM Deutschland Entwicklung GmbH, 1999,2000 * * $Revision: 1.1.1.1 $ * * History of changes * */ #ifndef DASD_ECKD_H #define DASD_ECKD_H #include "dasd_3990_erp.h" #include "dasd_9343_erp.h" /******************************************************************************* * SECTION: CCW Definitions ******************************************************************************/ #define DASD_ECKD_CCW_WRITE 0x05 #define DASD_ECKD_CCW_READ 0x06 #define DASD_ECKD_CCW_WRITE_HOME_ADDRESS 0x09 #define DASD_ECKD_CCW_READ_HOME_ADDRESS 0x0a #define DASD_ECKD_CCW_WRITE_KD 0x0d #define DASD_ECKD_CCW_READ_KD 0x0e #define DASD_ECKD_CCW_ERASE 0x11 #define DASD_ECKD_CCW_READ_COUNT 0x12 #define DASD_ECKD_CCW_SLCK 0x14 #define DASD_ECKD_CCW_WRITE_RECORD_ZERO 0x15 #define DASD_ECKD_CCW_READ_RECORD_ZERO 0x16 #define DASD_ECKD_CCW_WRITE_CKD 0x1d #define DASD_ECKD_CCW_READ_CKD 0x1e #define DASD_ECKD_CCW_PSF 0x27 #define DASD_ECKD_CCW_RSSD 0x3e #define DASD_ECKD_CCW_LOCATE_RECORD 0x47 #define DASD_ECKD_CCW_DEFINE_EXTENT 0x63 #define DASD_ECKD_CCW_WRITE_MT 0x85 #define DASD_ECKD_CCW_READ_MT 0x86 #define DASD_ECKD_CCW_WRITE_KD_MT 0x8d #define DASD_ECKD_CCW_READ_KD_MT 0x8e #define DASD_ECKD_CCW_RELEASE 0x94 #define DASD_ECKD_CCW_READ_CKD_MT 0x9e #define DASD_ECKD_CCW_WRITE_CKD_MT 0x9d #define DASD_ECKD_CCW_RESERVE 0xB4 /* *Perform Subsystem Function / Sub-Orders */ #define PSF_ORDER_PRSSD 0x18 /******************************************************************************* * SECTION: Type Definitions ******************************************************************************/ typedef struct eckd_count_t { __u16 cyl; __u16 head; __u8 record; __u8 kl; __u16 dl; } __attribute__ ((packed)) eckd_count_t; typedef struct ch_t { __u16 cyl; __u16 head; } __attribute__ ((packed)) ch_t; typedef struct chs_t { __u16 cyl; __u16 head; __u32 sector; } __attribute__ ((packed)) chs_t; typedef struct chr_t { __u16 cyl; __u16 head; __u8 record; } __attribute__ ((packed)) chr_t; typedef struct geom_t { __u16 cyl; __u16 head; __u32 sector; } __attribute__ ((packed)) geom_t; typedef struct eckd_home_t { __u8 skip_control[14]; __u16 cell_number; __u8 physical_addr[3]; __u8 flag; ch_t track_addr; __u8 reserved; __u8 key_length; __u8 reserved2[2]; } __attribute__ ((packed)) eckd_home_t; typedef struct DE_eckd_data_t { struct { unsigned char perm:2; /* Permissions on this extent */ unsigned char reserved:1; unsigned char seek:2; /* Seek control */ unsigned char auth:2; /* Access authorization */ unsigned char pci:1; /* PCI Fetch mode */ } __attribute__ ((packed)) mask; struct { unsigned char mode:2; /* Architecture mode */ unsigned char ckd:1; /* CKD Conversion */ unsigned char operation:3; /* Operation mode */ unsigned char cfw:1; /* Cache fast write */ unsigned char dfw:1; /* DASD fast write */ } __attribute__ ((packed)) attributes; __u16 blk_size; /* Blocksize */ __u16 fast_write_id; __u8 ga_additional; /* Global Attributes Additional */ __u8 ga_extended; /* Global Attributes Extended */ ch_t beg_ext; ch_t end_ext; unsigned long long ep_sys_time; /* Extended Parameter - System Time Stamp */ __u8 ep_format; /* Extended Parameter format byte */ __u8 ep_prio; /* Extended Parameter priority I/O byte */ __u8 ep_reserved[6]; /* Extended Parameter Reserved */ } __attribute__ ((packed)) DE_eckd_data_t; typedef struct LO_eckd_data_t { struct { unsigned char orientation:2; unsigned char operation:6; } __attribute__ ((packed)) operation; struct { unsigned char last_bytes_used:1; unsigned char reserved:6; unsigned char read_count_suffix:1; } __attribute__ ((packed)) auxiliary; __u8 unused; __u8 count; ch_t seek_addr; chr_t search_arg; __u8 sector; __u16 length; } __attribute__ ((packed)) LO_eckd_data_t; typedef struct dasd_eckd_characteristics_t { __u16 cu_type; struct { unsigned char support:2; unsigned char async:1; unsigned char reserved:1; unsigned char cache_info:1; unsigned char model:3; } __attribute__ ((packed)) cu_model; __u16 dev_type; __u8 dev_model; struct { unsigned char mult_burst:1; unsigned char RT_in_LR:1; unsigned char reserved1:1; unsigned char RD_IN_LR:1; unsigned char reserved2:4; unsigned char reserved3:8; unsigned char defect_wr:1; unsigned char XRC_supported:1; unsigned char reserved4:1; unsigned char striping:1; unsigned char reserved5:4; unsigned char cfw:1; unsigned char reserved6:2; unsigned char cache:1; unsigned char dual_copy:1; unsigned char dfw:1; unsigned char reset_alleg:1; unsigned char sense_down:1; } __attribute__ ((packed)) facilities; __u8 dev_class; __u8 unit_type; __u16 no_cyl; __u16 trk_per_cyl; __u8 sec_per_trk; __u8 byte_per_track[3]; __u16 home_bytes; __u8 formula; union { struct { __u8 f1; __u16 f2; __u16 f3; } __attribute__ ((packed)) f_0x01; struct { __u8 f1; __u8 f2; __u8 f3; __u8 f4; __u8 f5; } __attribute__ ((packed)) f_0x02; } __attribute__ ((packed)) factors; __u16 first_alt_trk; __u16 no_alt_trk; __u16 first_dia_trk; __u16 no_dia_trk; __u16 first_sup_trk; __u16 no_sup_trk; __u8 MDR_ID; __u8 OBR_ID; __u8 director; __u8 rd_trk_set; __u16 max_rec_zero; __u8 reserved1; __u8 RWANY_in_LR; __u8 factor6; __u8 factor7; __u8 factor8; __u8 reserved2[3]; __u8 reserved3[10]; } __attribute__ ((packed)) dasd_eckd_characteristics_t; typedef struct dasd_eckd_confdata_t { struct { struct { unsigned char identifier:2; unsigned char token_id:1; unsigned char sno_valid:1; unsigned char subst_sno:1; unsigned char recNED:1; unsigned char emuNED:1; unsigned char reserved:1; } __attribute__ ((packed)) flags; __u8 descriptor; __u8 dev_class; __u8 reserved; unsigned char dev_type[6]; unsigned char dev_model[3]; unsigned char HDA_manufacturer[3]; unsigned char HDA_location[2]; unsigned char HDA_seqno[12]; __u16 ID; } __attribute__ ((packed)) ned1; struct { struct { unsigned char identifier:2; unsigned char token_id:1; unsigned char sno_valid:1; unsigned char subst_sno:1; unsigned char recNED:1; unsigned char emuNED:1; unsigned char reserved:1; } __attribute__ ((packed)) flags; __u8 descriptor; __u8 reserved[2]; unsigned char dev_type[6]; unsigned char dev_model[3]; unsigned char DASD_manufacturer[3]; unsigned char DASD_location[2]; unsigned char DASD_seqno[12]; __u16 ID; } __attribute__ ((packed)) ned2; struct { struct { unsigned char identifier:2; unsigned char token_id:1; unsigned char sno_valid:1; unsigned char subst_sno:1; unsigned char recNED:1; unsigned char emuNED:1; unsigned char reserved:1; } __attribute__ ((packed)) flags; __u8 descriptor; __u8 reserved[2]; unsigned char cont_type[6]; unsigned char cont_model[3]; unsigned char cont_manufacturer[3]; unsigned char cont_location[2]; unsigned char cont_seqno[12]; __u16 ID; } __attribute__ ((packed)) ned3; struct { struct { unsigned char identifier:2; unsigned char token_id:1; unsigned char sno_valid:1; unsigned char subst_sno:1; unsigned char recNED:1; unsigned char emuNED:1; unsigned char reserved:1; } __attribute__ ((packed)) flags; __u8 descriptor; __u8 reserved[2]; unsigned char cont_type[6]; unsigned char empty[3]; unsigned char cont_manufacturer[3]; unsigned char cont_location[2]; unsigned char cont_seqno[12]; __u16 ID; } __attribute__ ((packed)) ned4; unsigned char ned5[32]; unsigned char ned6[32]; unsigned char ned7[32]; struct { struct { unsigned char identifier:2; unsigned char reserved:6; } __attribute__ ((packed)) flags; __u8 selector; __u16 interfaceID; __u32 reserved; __u16 subsystemID; struct { unsigned char sp0:1; unsigned char sp1:1; unsigned char reserved:5; unsigned char scluster:1; } __attribute__ ((packed)) spathID; __u8 unit_address; __u8 dev_ID; __u8 dev_address; __u8 adapterID; __u16 link_address; struct { unsigned char parallel:1; unsigned char escon:1; unsigned char reserved:1; unsigned char ficon:1; unsigned char reserved2:4; } __attribute__ ((packed)) protocol_type; struct { unsigned char PID_in_236:1; unsigned char reserved:7; } __attribute__ ((packed)) format_flags; __u8 log_dev_address; unsigned char reserved2[12]; } __attribute__ ((packed)) neq; } __attribute__ ((packed)) dasd_eckd_confdata_t; /* * Perform Subsystem Function - Prepare for Read Subsystem Data */ typedef struct dasd_psf_prssd_data_t { unsigned char order; unsigned char flags; unsigned char reserved[4]; unsigned char suborder; unsigned char varies[9]; } __attribute__((packed)) dasd_psf_prssd_data_t; int dasd_eckd_init (void); void dasd_eckd_cleanup (void); #endif /* DASD_ECKD_H */