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/*
* Copyright(c) 2012-2018 Intel Corporation
* SPDX-License-Identifier: BSD-3-Clause-Clear
*/
#ifndef __LAYER_CLEANING_POLICY_H__
#define __LAYER_CLEANING_POLICY_H__
#include "alru_structs.h"
#include "nop_structs.h"
#include "acp_structs.h"
#include "ocf/ocf_cleaner.h"
#define CLEANING_POLICY_CONFIG_BYTES 256
#define CLEANING_POLICY_TYPE_MAX 4
#define SLEEP_TIME_MS (1000)
struct ocf_request;
struct cleaning_policy_config {
uint8_t data[CLEANING_POLICY_CONFIG_BYTES];
};
struct cleaning_policy {
union {
struct nop_cleaning_policy nop;
struct alru_cleaning_policy alru;
} policy;
};
/* Cleaning policy metadata per cache line */
struct cleaning_policy_meta {
union {
struct nop_cleaning_policy_meta nop;
struct alru_cleaning_policy_meta alru;
struct acp_cleaning_policy_meta acp;
} meta;
};
struct cleaning_policy_ops {
void (*setup)(ocf_cache_t cache);
int (*initialize)(ocf_cache_t cache, int init_metadata);
void (*deinitialize)(ocf_cache_t cache);
int (*add_core)(ocf_cache_t cache, ocf_core_id_t core_id);
void (*remove_core)(ocf_cache_t cache, ocf_core_id_t core_id);
void (*init_cache_block)(ocf_cache_t cache, uint32_t cache_line);
void (*purge_cache_block)(ocf_cache_t cache, uint32_t cache_line);
int (*purge_range)(ocf_cache_t cache, int core_id,
uint64_t start_byte, uint64_t end_byte);
void (*set_hot_cache_line)(ocf_cache_t cache, uint32_t cache_line);
int (*set_cleaning_param)(ocf_cache_t cache, uint32_t param_id,
uint32_t param_value);
int (*get_cleaning_param)(ocf_cache_t cache, uint32_t param_id,
uint32_t *param_value);
void (*perform_cleaning)(ocf_cache_t cache, ocf_cleaner_end_t cmpl);
const char *name;
};
extern struct cleaning_policy_ops cleaning_policy_ops[ocf_cleaning_max];
struct ocf_cleaner {
void *cleaning_policy_context;
ocf_queue_t io_queue;
ocf_cleaner_end_t end;
void *priv;
};
int ocf_start_cleaner(ocf_cache_t cache);
void ocf_kick_cleaner(ocf_cache_t cache);
void ocf_stop_cleaner(ocf_cache_t cache);
#endif
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