1ef740c37SChristoph Hellwig #ifndef _RAID0_H 2ef740c37SChristoph Hellwig #define _RAID0_H 3ef740c37SChristoph Hellwig 4ef740c37SChristoph Hellwig struct strip_zone 5ef740c37SChristoph Hellwig { 6*dc582663SAndre Noll sector_t zone_end; /* Start of the next zone (in sectors) */ 7ef740c37SChristoph Hellwig sector_t dev_start; /* Zone offset in real dev (in sectors) */ 8ef740c37SChristoph Hellwig sector_t sectors; /* Zone size in sectors */ 9ef740c37SChristoph Hellwig int nb_dev; /* # of devices attached to the zone */ 10ef740c37SChristoph Hellwig mdk_rdev_t **dev; /* Devices attached to the zone */ 11ef740c37SChristoph Hellwig }; 12ef740c37SChristoph Hellwig 13ef740c37SChristoph Hellwig struct raid0_private_data 14ef740c37SChristoph Hellwig { 15ef740c37SChristoph Hellwig struct strip_zone **hash_table; /* Table of indexes into strip_zone */ 16ef740c37SChristoph Hellwig struct strip_zone *strip_zone; 17ef740c37SChristoph Hellwig mdk_rdev_t **devlist; /* lists of rdevs, pointed to by strip_zone->dev */ 18ef740c37SChristoph Hellwig int nr_strip_zones; 19ef740c37SChristoph Hellwig 20ef740c37SChristoph Hellwig sector_t spacing; 21ef740c37SChristoph Hellwig int sector_shift; /* shift this before divide by spacing */ 22ef740c37SChristoph Hellwig }; 23ef740c37SChristoph Hellwig 24ef740c37SChristoph Hellwig typedef struct raid0_private_data raid0_conf_t; 25ef740c37SChristoph Hellwig 26ef740c37SChristoph Hellwig #define mddev_to_conf(mddev) ((raid0_conf_t *) mddev->private) 27ef740c37SChristoph Hellwig 28ef740c37SChristoph Hellwig #endif 29