diff options
Diffstat (limited to 'drivers/s390/block/dasd_eckd.h')
| -rw-r--r-- | drivers/s390/block/dasd_eckd.h | 49 |
1 files changed, 43 insertions, 6 deletions
diff --git a/drivers/s390/block/dasd_eckd.h b/drivers/s390/block/dasd_eckd.h index 2476f87d21d0..ad45bcac3ce4 100644 --- a/drivers/s390/block/dasd_eckd.h +++ b/drivers/s390/block/dasd_eckd.h @@ -38,8 +38,11 @@ #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_WRITE_TRACK_DATA 0xA5 +#define DASD_ECKD_CCW_READ_TRACK_DATA 0xA6 #define DASD_ECKD_CCW_RESERVE 0xB4 #define DASD_ECKD_CCW_PFX 0xE7 +#define DASD_ECKD_CCW_PFX_READ 0xEA #define DASD_ECKD_CCW_RSCK 0xF9 /* @@ -48,6 +51,11 @@ #define PSF_ORDER_PRSSD 0x18 #define PSF_ORDER_SSC 0x1D +/* + * Size that is reportet for large volumes in the old 16-bit no_cyl field + */ +#define LV_COMPAT_CYL 0xFFFE + /***************************************************************************** * SECTION: Type Definitions ****************************************************************************/ @@ -118,7 +126,9 @@ struct DE_eckd_data { unsigned long long ep_sys_time; /* Ext 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 */ + __u8 ep_reserved1; /* Extended Parameter Reserved */ + __u8 ep_rec_per_track; /* Number of records on a track */ + __u8 ep_reserved[4]; /* Extended Parameter Reserved */ } __attribute__ ((packed)); struct LO_eckd_data { @@ -139,11 +149,37 @@ struct LO_eckd_data { __u16 length; } __attribute__ ((packed)); +struct LRE_eckd_data { + struct { + unsigned char orientation:2; + unsigned char operation:6; + } __attribute__ ((packed)) operation; + struct { + unsigned char length_valid:1; + unsigned char length_scope:1; + unsigned char imbedded_ccw_valid:1; + unsigned char check_bytes:2; + unsigned char imbedded_count_valid:1; + unsigned char reserved:1; + unsigned char read_count_suffix:1; + } __attribute__ ((packed)) auxiliary; + __u8 imbedded_ccw; + __u8 count; + struct ch_t seek_addr; + struct chr_t search_arg; + __u8 sector; + __u16 length; + __u8 imbedded_count; + __u8 extended_operation; + __u16 extended_parameter_length; + __u8 extended_parameter[0]; +} __attribute__ ((packed)); + /* Prefix data for format 0x00 and 0x01 */ struct PFX_eckd_data { unsigned char format; struct { - unsigned char define_extend:1; + unsigned char define_extent:1; unsigned char time_stamp:1; unsigned char verify_base:1; unsigned char hyper_pav:1; @@ -153,9 +189,8 @@ struct PFX_eckd_data { __u8 aux; __u8 base_lss; __u8 reserved[7]; - struct DE_eckd_data define_extend; - struct LO_eckd_data locate_record; - __u8 LO_extended_data[4]; + struct DE_eckd_data define_extent; + struct LRE_eckd_data locate_record; } __attribute__ ((packed)); struct dasd_eckd_characteristics { @@ -228,7 +263,8 @@ struct dasd_eckd_characteristics { __u8 factor7; __u8 factor8; __u8 reserved2[3]; - __u8 reserved3[10]; + __u8 reserved3[6]; + __u32 long_no_cyl; } __attribute__ ((packed)); /* elements of the configuration data */ @@ -406,6 +442,7 @@ struct dasd_eckd_private { int uses_cdl; struct attrib_data_t attrib; /* e.g. cache operations */ struct dasd_rssd_features features; + u32 real_cyl; /* alias managemnet */ struct dasd_uid uid; |