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Implement asynchronous attach, load, detach and stop

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NOTE: This is still not the real asynchronism. Metadata interfaces
are still not fully asynchronous.

Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
This commit is contained in:
Robert Baldyga
2019-03-04 10:55:16 +01:00
parent 56f4d34920
commit 91e0345b78
17 changed files with 1692 additions and 767 deletions
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81
src/mngt/ocf_mngt_common.c
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@@ -15,6 +15,7 @@
#include "../eviction/ops.h"
#include "../ocf_logger_priv.h"
#include "../ocf_queue_priv.h"
#include "../engine/engine_common.h"
/* Close if opened */
int cache_mng_core_close(ocf_cache_t cache, ocf_core_id_t core_id)
@@ -457,3 +458,83 @@ int ocf_mngt_cache_visit_reverse(ocf_ctx_t ocf_ctx,
return result;
}
struct ocf_mngt_pipeline {
ocf_mngt_pipeline_step_t *steps;
int next_step;
ocf_mngt_pipeline_end_t cmpl;
struct ocf_request *req;
bool finish;
int error;
void *priv;
};
static int _ocf_mngt_pipeline_run_step(struct ocf_request *req)
{
ocf_mngt_pipeline_t pipeline = req->priv;
if (pipeline->steps[pipeline->next_step] && !pipeline->finish)
pipeline->steps[pipeline->next_step++](pipeline, pipeline->priv);
else
pipeline->cmpl(pipeline, pipeline->priv, pipeline->error);
return 0;
}
static const struct ocf_io_if _io_if_pipeline = {
.read = _ocf_mngt_pipeline_run_step,
.write = _ocf_mngt_pipeline_run_step,
};
int ocf_mngt_pipeline_create(ocf_mngt_pipeline_t *pipeline, ocf_cache_t cache,
ocf_mngt_pipeline_step_t *steps, ocf_mngt_pipeline_end_t cmpl,
void *priv)
{
ocf_mngt_pipeline_t tmp_pipeline;
struct ocf_request *req;
tmp_pipeline = env_vzalloc(sizeof(struct ocf_mngt_pipeline));
if (!tmp_pipeline)
return -OCF_ERR_NO_MEM;
req = ocf_req_new(cache->mngt_queue, NULL, 0, 0, 0);
if (!req) {
env_vfree(tmp_pipeline);
return -OCF_ERR_NO_MEM;
}
tmp_pipeline->steps = steps;
tmp_pipeline->next_step = 0;
tmp_pipeline->cmpl = cmpl;
tmp_pipeline->req = req;
tmp_pipeline->finish = false;
tmp_pipeline->error = 0;
tmp_pipeline->priv = priv;
req->info.internal = true;
req->io_if = &_io_if_pipeline;
req->priv = tmp_pipeline;
*pipeline = tmp_pipeline;
return 0;
}
void ocf_mngt_pipeline_destroy(ocf_mngt_pipeline_t pipeline)
{
ocf_req_put(pipeline->req);
env_vfree(pipeline);
}
void ocf_mngt_pipeline_next(ocf_mngt_pipeline_t pipeline)
{
ocf_engine_push_req_front(pipeline->req, true);
}
void ocf_mngt_pipeline_finish(ocf_mngt_pipeline_t pipeline, int error)
{
pipeline->finish = true;
pipeline->error = error;
ocf_engine_push_req_front(pipeline->req, true);
}