[SCSI] raid class update

- Update raid class to use nested classes for raid components (this will
allow us to move to a component control model now)
- Make the raid level an enumeration rather than and int.

Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
James Bottomley 2005-11-06 11:59:08 -06:00 committed by James Bottomley
parent df133c212e
commit b1081ea6f0
2 changed files with 98 additions and 30 deletions

View file

@ -1,4 +1,9 @@
/*
* 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>
@ -14,20 +19,35 @@ struct raid_function_template {
};
enum raid_state {
RAID_ACTIVE = 1,
RAID_DEGRADED,
RAID_RESYNCING,
RAID_OFFLINE,
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_3,
RAID_LEVEL_4,
RAID_LEVEL_5,
RAID_LEVEL_6,
};
struct raid_data {
struct list_head component_list;
int component_count;
int level;
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) { \
@ -48,7 +68,7 @@ raid_get_##attr(struct raid_template *r, struct device *dev) { \
return rd->attr; \
}
DEFINE_RAID_ATTRIBUTE(int, level)
DEFINE_RAID_ATTRIBUTE(enum raid_level, level)
DEFINE_RAID_ATTRIBUTE(int, resync)
DEFINE_RAID_ATTRIBUTE(enum raid_state, state)