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cas_cache: Add promotion count parameter

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Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
This commit is contained in:
Robert Baldyga 2021-02-03 09:35:56 +01:00
parent 9bc827a4f2
commit e6710e0016
2 changed files with 71 additions and 0 deletions
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70
modules/cas_cache/layer_cache_management.c
View File

@ -1273,6 +1273,7 @@ int cache_mngt_add_core_to_cache(const char *cache_name, size_t name_len,
}
cfg->seq_cutoff_threshold = seq_cut_off_mb * MiB;
cfg->seq_cutoff_promotion_count = 8;
init_completion(&add_context.cmpl);
add_context.core = &core;
@ -2136,6 +2137,43 @@ out:
return result;
}
/**
* @brief routine implementing dynamic sequential cutoff parameter switching
* @param[in] cache cache to which the change pertains
* @param[in] core core to which the change pertains
* or NULL for setting value for all cores attached to specified cache
* @param[in] count new sequential cutoff promotion request count value
* @return exit code of successful completion is 0;
* nonzero exit code means failure
*/
int cache_mngt_set_seq_cutoff_promotion_count(ocf_cache_t cache,
ocf_core_t core, uint32_t count)
{
int result;
result = _cache_mngt_lock_sync(cache);
if (result)
return result;
if (core) {
result = ocf_mngt_core_set_seq_cutoff_promotion_count(core,
count);
} else {
result = ocf_mngt_core_set_seq_cutoff_promotion_count_all(cache,
count);
}
if (result)
goto out;
result = _cache_mngt_save_sync(cache);
out:
ocf_mngt_cache_unlock(cache);
return result;
}
/**
* @brief Get sequential cutoff threshold value
* @param[in] core OCF core
@ -2183,6 +2221,30 @@ int cache_mngt_get_seq_cutoff_policy(ocf_core_t core,
return result;
}
/**
* @brief Get sequential cutoff promotion request count value
* @param[in] core OCF core
* @param[out] count sequential cutoff promotion request count value
* @return exit code of successful completion is 0;
* nonzero exit code means failure
*/
int cache_mngt_get_seq_cutoff_promotion_count(ocf_core_t core,
uint32_t *count)
{
ocf_cache_t cache = ocf_core_get_cache(core);
int result;
result = _cache_mngt_read_lock_sync(cache);
if (result)
return result;
result = ocf_mngt_core_get_seq_cutoff_promotion_count(core, count);
ocf_mngt_cache_read_unlock(cache);
return result;
}
static int _cache_flush_with_lock(ocf_cache_t cache)
{
int result = 0;
@ -2646,6 +2708,10 @@ int cache_mngt_set_core_params(struct kcas_set_core_param *info)
result = cache_mngt_set_seq_cutoff_policy(cache, core,
info->param_value);
break;
case core_param_seq_cutoff_promotion_count:
result = cache_mngt_set_seq_cutoff_promotion_count(cache,
core, info->param_value);
break;
default:
result = -EINVAL;
}
@ -2678,6 +2744,10 @@ int cache_mngt_get_core_params(struct kcas_get_core_param *info)
result = cache_mngt_get_seq_cutoff_policy(core,
&info->param_value);
break;
case core_param_seq_cutoff_promotion_count:
result = cache_mngt_get_seq_cutoff_promotion_count(core,
&info->param_value);
break;
default:
result = -EINVAL;
}

1
modules/include/cas_ioctl_codes.h
View File

@ -330,6 +330,7 @@ struct kcas_cache_check_device {
enum kcas_core_param_id {
core_param_seq_cutoff_threshold,
core_param_seq_cutoff_policy,
core_param_seq_cutoff_promotion_count,
core_param_id_max,
};