diff options
Diffstat (limited to 'drivers/s390/block/dasd_int.h')
| -rw-r--r-- | drivers/s390/block/dasd_int.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h index 39316020529d..d9794ec03722 100644 --- a/drivers/s390/block/dasd_int.h +++ b/drivers/s390/block/dasd_int.h @@ -290,6 +290,24 @@ struct dasd_pprc_data_sc4 { struct dasd_pprc_dev_info dev_info[5]; } __packed; +#define DASD_BUS_ID_SIZE 20 +#define DASD_CP_ENTRIES 5 + +struct dasd_copy_entry { + char busid[DASD_BUS_ID_SIZE]; + struct dasd_device *device; + bool primary; + bool configured; +}; + +struct dasd_copy_relation { + struct dasd_copy_entry entry[DASD_CP_ENTRIES]; + struct dasd_copy_entry *active; +}; + +int dasd_devmap_set_device_copy_relation(struct ccw_device *, + bool pprc_enabled); + /* * the struct dasd_discipline is * sth like a table of virtual functions, if you think of dasd_eckd @@ -419,6 +437,7 @@ struct dasd_discipline { struct dasd_ccw_req *, struct irb *); int (*ese_read)(struct dasd_ccw_req *, struct irb *); int (*pprc_status)(struct dasd_device *, struct dasd_pprc_data_sc4 *); + bool (*pprc_enabled)(struct dasd_device *); }; extern struct dasd_discipline *dasd_diag_discipline_pointer; @@ -615,6 +634,7 @@ struct dasd_device { struct dasd_profile profile; struct dasd_format_entry format_entry; struct kset *paths_info; + struct dasd_copy_relation *copy; }; struct dasd_block { |