[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>

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)