/* */ #include <linux/transport_class.h> struct raid_template { struct transport_container raid_attrs; }; struct raid_function_template { void *cookie; int (*is_raid)(struct device *); void (*get_resync)(struct device *); void (*get_state)(struct device *); }; enum raid_state { RAID_ACTIVE = 1, RAID_DEGRADED, RAID_RESYNCING, RAID_OFFLINE, }; struct raid_data { struct list_head component_list; int component_count; int level; enum raid_state state; int resync; }; #define DEFINE_RAID_ATTRIBUTE(type, attr) \ static inline void \ raid_set_##attr(struct raid_template *r, struct device *dev, type value) { \ struct class_device *cdev = \ attribute_container_find_class_device(&r->raid_attrs.ac, dev);\ struct raid_data *rd; \ BUG_ON(!cdev); \ rd = class_get_devdata(cdev); \ rd->attr = value; \ } \ static inline type \ raid_get_##attr(struct raid_template *r, struct device *dev) { \ struct class_device *cdev = \ attribute_container_find_class_device(&r->raid_attrs.ac, dev);\ struct raid_data *rd; \ BUG_ON(!cdev); \ rd = class_get_devdata(cdev); \ return rd->attr; \ } DEFINE_RAID_ATTRIBUTE(int, level) DEFINE_RAID_ATTRIBUTE(int, resync) DEFINE_RAID_ATTRIBUTE(enum raid_state, state) struct raid_template *raid_class_attach(struct raid_function_template *); void raid_class_release(struct raid_template *); void raid_component_add(struct raid_template *, struct device *, struct device *);