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author | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
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committer | Srikant Patnaik | 2015-01-11 12:28:04 +0530 |
commit | 871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch) | |
tree | 8718f573808810c2a1e8cb8fb6ac469093ca2784 /include/linux/raid_class.h | |
parent | 9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff) | |
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized.
Changes are basically to make it look like kernel structure.
Diffstat (limited to 'include/linux/raid_class.h')
-rw-r--r-- | include/linux/raid_class.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/include/linux/raid_class.h b/include/linux/raid_class.h new file mode 100644 index 00000000..31e1ff69 --- /dev/null +++ b/include/linux/raid_class.h @@ -0,0 +1,83 @@ +/* + * raid_class.h - a generic raid visualisation class + * + * Copyright (c) 2005 - James Bottomley <James.Bottomley@steeleye.com> + * + * This file is licensed under GPLv2 + */ +#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_STATE_UNKNOWN = 0, + RAID_STATE_ACTIVE, + RAID_STATE_DEGRADED, + RAID_STATE_RESYNCING, + RAID_STATE_OFFLINE, +}; + +enum raid_level { + RAID_LEVEL_UNKNOWN = 0, + RAID_LEVEL_LINEAR, + RAID_LEVEL_0, + RAID_LEVEL_1, + RAID_LEVEL_10, + RAID_LEVEL_1E, + RAID_LEVEL_3, + RAID_LEVEL_4, + RAID_LEVEL_5, + RAID_LEVEL_50, + RAID_LEVEL_6, +}; + +struct raid_data { + struct list_head component_list; + int component_count; + enum raid_level level; + enum raid_state state; + int resync; +}; + +/* resync complete goes from 0 to this */ +#define RAID_MAX_RESYNC (10000) + +#define DEFINE_RAID_ATTRIBUTE(type, attr) \ +static inline void \ +raid_set_##attr(struct raid_template *r, struct device *dev, type value) { \ + struct device *device = \ + attribute_container_find_class_device(&r->raid_attrs.ac, dev);\ + struct raid_data *rd; \ + BUG_ON(!device); \ + rd = dev_get_drvdata(device); \ + rd->attr = value; \ +} \ +static inline type \ +raid_get_##attr(struct raid_template *r, struct device *dev) { \ + struct device *device = \ + attribute_container_find_class_device(&r->raid_attrs.ac, dev);\ + struct raid_data *rd; \ + BUG_ON(!device); \ + rd = dev_get_drvdata(device); \ + return rd->attr; \ +} + +DEFINE_RAID_ATTRIBUTE(enum raid_level, 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 *); + +int __must_check raid_component_add(struct raid_template *, struct device *, + struct device *); + |