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authorJames Bottomley <James.Bottomley@steeleye.com>2005-11-06 20:59:08 +0300
committerJames Bottomley <jejb@mulgrave.(none)>2005-11-06 21:32:31 +0300
commitb1081ea6f000dee6dba288f9fab9df902802b25b (patch)
tree992c2419987d40e7fb9d888b5ab852c091acc31b /include/linux/raid_class.h
parentdf133c212ef82b9c7e80fca7b1f87dad8a05de3c (diff)
downloadlinux-b1081ea6f000dee6dba288f9fab9df902802b25b.tar.xz
[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>
Diffstat (limited to 'include/linux/raid_class.h')
-rw-r--r--include/linux/raid_class.h32
1 files changed, 26 insertions, 6 deletions
diff --git a/include/linux/raid_class.h b/include/linux/raid_class.h
index a71123c28272..48831eac2910 100644
--- a/include/linux/raid_class.h
+++ b/include/linux/raid_class.h
@@ -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)