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New ioctl for retriveing ocf stats.

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Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
This commit is contained in:
Michal Mielewczyk
2019-08-26 07:21:09 -04:00
parent bda0eb41a9
commit 4726bedb50
5 changed files with 91 additions and 1 deletions
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52
modules/cas_cache/layer_cache_management.c
View File

@@ -1753,6 +1753,58 @@ int cache_mngt_interrupt_flushing(const char *cache_name)
}
int cache_mngt_get_stats(struct kcas_get_stats *stats)
{
int result;
ocf_cache_t cache;
ocf_core_t core = NULL;
result = mngt_get_cache_by_id(cas_ctx, stats->cache_id, &cache);
if (result)
return result;
result = _cache_mngt_read_lock_sync(cache);
if (result)
goto put;
if (stats->core_id == OCF_CORE_ID_INVALID &&
stats->part_id == OCF_IO_CLASS_INVALID) {
result = ocf_stats_collect_cache(cache, &stats->usage, &stats->req,
&stats->blocks, &stats->errors);
if (result)
goto unlock;
} else if (stats->part_id == OCF_IO_CLASS_INVALID) {
result = get_core_by_id(cache, stats->core_id, &core);
if (result)
goto unlock;
result = ocf_stats_collect_core(core, &stats->usage, &stats->req,
&stats->blocks, &stats->errors);
if (result)
goto unlock;
} else {
if (stats->core_id == OCF_CORE_ID_INVALID) {
result = ocf_stats_collect_part_cache(cache, stats->part_id,
&stats->usage, &stats->req, &stats->blocks);
} else {
result = get_core_by_id(cache, stats->core_id, &core);
if (result)
goto unlock;
result = ocf_stats_collect_part_core(core, stats->part_id,
&stats->usage, &stats->req, &stats->blocks);
}
}
unlock:
ocf_mngt_cache_read_unlock(cache);
put:
ocf_mngt_cache_put(cache);
return result;
}
int cache_mngt_get_info(struct kcas_cache_info *info)
{
uint32_t i, j;

2
modules/cas_cache/layer_cache_management.h
View File

@@ -73,6 +73,8 @@ int cache_mngt_list_caches(struct kcas_cache_list *list);
int cache_mngt_interrupt_flushing(const char *cache_name);
int cache_mngt_get_stats(struct kcas_get_stats *stats);
int cache_mngt_get_info(struct kcas_cache_info *info);
int cache_mngt_get_io_class_info(struct kcas_io_class *part);

10
modules/cas_cache/service_ui_ioctl.c
View File

@@ -193,6 +193,16 @@ long cas_service_ioctl_ctrl(struct file *filp, unsigned int cmd,
RETURN_CMD_RESULT(cmd_info, arg, retval);
}
case KCAS_IOCTL_GET_STATS: {
struct kcas_get_stats *cmd_info;
GET_CMD_INFO(cmd_info, arg);
retval = cache_mngt_get_stats(cmd_info);
RETURN_CMD_RESULT(cmd_info, arg, retval);
}
case KCAS_IOCTL_CACHE_INFO: {
struct kcas_cache_info *cmd_info;