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Store min and max ioclass size as percentage val

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Min and max values, keept as an explicit number of cachelines, are tightly
coupled with particular cache. This might lead to errors and mismatches after
reattaching cache of different size.

To prevent those errors, min and max should be calculated dynamically.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
This commit is contained in:
Michal Mielewczyk
2020-11-30 19:21:12 -05:00
parent bcfc821068
commit 0dc8b5811c
4 changed files with 47 additions and 19 deletions
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27
src/utils/utils_part.h
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@@ -56,10 +56,31 @@ static inline uint32_t ocf_part_get_occupancy(struct ocf_user_part *part)
return part->runtime->curr_size;
}
static inline uint32_t ocf_part_get_max_size(ocf_cache_t cache,
ocf_part_id_t part_id)
static inline uint32_t ocf_part_get_min_size(ocf_cache_t cache,
struct ocf_user_part *part)
{
return cache->user_parts[part_id].config->max_size;
uint64_t ioclass_size;
ioclass_size = part->config->min_size * cache->conf_meta->cachelines;
ioclass_size /= 100;
return (uint32_t)ioclass_size;
}
static inline uint32_t ocf_part_get_max_size(ocf_cache_t cache,
struct ocf_user_part *part)
{
uint64_t ioclass_size, max_size, cache_size;
max_size = part->config->max_size;
cache_size = cache->conf_meta->cachelines;
ioclass_size = max_size * cache_size;
ioclass_size = OCF_DIV_ROUND_UP(ioclass_size, 100);
return (uint32_t)ioclass_size;
}
void ocf_part_move(struct ocf_request *req);