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     ˆÃÂƒï3ÁÀ¿ ¿    /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
/* Copyright (c) 2018 Mellanox Technologies. All rights reserved */

#ifndef _OBJAGG_H
#define _OBJAGG_H

struct objagg_ops {
	size_t obj_size;
	bool (*delta_check)(void *priv, const void *parent_obj,
			    const void *obj);
	void * (*delta_create)(void *priv, void *parent_obj, void *obj);
	void (*delta_destroy)(void *priv, void *delta_priv);
	void * (*root_create)(void *priv, void *obj, unsigned int root_id);
#define OBJAGG_OBJ_ROOT_ID_INVALID UINT_MAX
	void (*root_destroy)(void *priv, void *root_priv);
};

struct objagg;
struct objagg_obj;
struct objagg_hints;

const void *objagg_obj_root_priv(const struct objagg_obj *objagg_obj);
const void *objagg_obj_delta_priv(const struct objagg_obj *objagg_obj);
const void *objagg_obj_raw(const struct objagg_obj *objagg_obj);

struct objagg_obj *objagg_obj_get(struct objagg *objagg, void *obj);
void objagg_obj_put(struct objagg *objagg, struct objagg_obj *objagg_obj);
struct objagg *objagg_create(const struct objagg_ops *ops,
			     struct objagg_hints *hints, void *priv);
void objagg_destroy(struct objagg *objagg);

struct objagg_obj_stats {
	unsigned int user_count;
	unsigned int delta_user_count; /* includes delta object users */
};

struct objagg_obj_stats_info {
	struct objagg_obj_stats stats;
	struct objagg_obj *objagg_obj; /* associated object */
	bool is_root;
};

struct objagg_stats {
	unsigned int root_count;
	unsigned int stats_info_count;
	struct objagg_obj_stats_info stats_info[];
};

const struct objagg_stats *objagg_stats_get(struct objagg *objagg);
void objagg_stats_put(const struct objagg_stats *objagg_stats);

enum objagg_opt_algo_type {
	OBJAGG_OPT_ALGO_SIMPLE_GREEDY,
};

struct objagg_hints *objagg_hints_get(struct objagg *objagg,
				      enum objagg_opt_algo_type opt_algo_type);
void objagg_hints_put(struct objagg_hints *objagg_hints);
const struct objagg_stats *
objagg_hints_stats_get(struct objagg_hints *objagg_hints);

#endif
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/*
 * raid_class.h - a generic raid visualisation class
 *
 * Copyright (c) 2005 - James Bottomley <James.Bottomley@steeleye.com>
 */
#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,
	RAID_LEVEL_JBOD,
};

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_RAI