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Separate engine map/evict (refactoring)

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This temporarily increases amount of boiler-plate code, but
this is going to be mitigated in the following commits.

Signed-off-by: Adam Rutkowski <adam.j.rutkowski@intel.com>
This commit is contained in:
Adam Rutkowski
2019-07-30 16:03:16 -04:00
parent d91012f4b4
commit b39bcf86d4
5 changed files with 58 additions and 25 deletions
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19
src/engine/engine_common.h
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@@ -162,19 +162,28 @@ void ocf_engine_lookup_map_entry(struct ocf_cache *cache,
uint64_t core_line);
/**
* @brief Traverse request in order to lookup cache lines If there are misses
* need to call eviction. This process is called 'mapping'.
*
* @note This function CALL EVICTION
* @brief Traverse request in order to lookup cache lines. If there are misses,
* attempt to map free cache lines.
*
* @param req OCF request
*/
void ocf_engine_map(struct ocf_request *req);
/**
* @brief Evict cachelines to populate freelist.
*
* @param req OCF request
*
* @returns eviction status
* @retval LOOKUP_MAPPED successfully evicted required number of cachelines
* @retval LOOKUP_MISS eviction failure
*/
int ocf_engine_evict(struct ocf_request *req);
/**
* @brief Traverse OCF request (lookup cache)
*
* @note This function DO NOT CALL EVICTION. Only lookup in metadata is
* @note This function does not evict cachelines. Only lookup in metadata is
* performed. Main purpose of this function is to check if there is a HIT.
*
* @param req OCF request