github/ocf
4
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Dynamic I/O queue management

Browse Source 
- Queue allocation is now separated from starting cache.
- Queue can be created and destroyed in runtime.
- All queue ops accept queue handle instead of queue id.
- Cache stores queues as list instead of array.

Signed-off-by: Michal Mielewczyk <michal.mielewczyk@intel.com>
Signed-off-by: Robert Baldyga <robert.baldyga@intel.com>
This commit is contained in:
Michal Mielewczyk
2019-02-15 08:12:00 -05:00
committed by Robert Baldyga
parent 1771228a46
commit e53944d472
38 changed files with 379 additions and 445 deletions
Download Patch File Download Diff File Expand all files Collapse all files

30
src/utils/utils_req.c
View File

@@ -8,6 +8,7 @@
#include "utils_cache_line.h"
#include "../ocf_request.h"
#include "../ocf_cache_priv.h"
#include "../ocf_queue_priv.h"
#define OCF_UTILS_RQ_DEBUG 0
@@ -165,10 +166,11 @@ static void start_cache_req(struct ocf_request *req)
}
}
struct ocf_request *ocf_req_new(struct ocf_cache *cache,
ocf_core_id_t core_id, uint64_t addr, uint32_t bytes, int rw)
struct ocf_request *ocf_req_new(ocf_queue_t queue, ocf_core_t core,
uint64_t addr, uint32_t bytes, int rw)
{
uint64_t core_line_first, core_line_last, core_line_count;
ocf_cache_t cache = queue->cache;
struct ocf_request *req;
env_allocator *allocator;
@@ -197,14 +199,17 @@ struct ocf_request *ocf_req_new(struct ocf_cache *cache,
OCF_DEBUG_TRACE(cache);
ocf_queue_get(queue);
req->io_queue = queue;
/* TODO: Store core pointer instead of id */
req->core_id = core ? ocf_core_get_id(core) : 0;
req->cache = cache;
env_atomic_inc(&cache->pending_requests);
start_cache_req(req);
req->io_queue = 0;
env_atomic_set(&req->ref_count, 1);
req->core_id = core_id;
req->byte_position = addr;
req->byte_length = bytes;
@@ -232,12 +237,12 @@ int ocf_req_alloc_map(struct ocf_request *req)
return 0;
}
struct ocf_request *ocf_req_new_extended(struct ocf_cache *cache,
ocf_core_id_t core_id, uint64_t addr, uint32_t bytes, int rw)
struct ocf_request *ocf_req_new_extended(ocf_queue_t queue, ocf_core_t core,
uint64_t addr, uint32_t bytes, int rw)
{
struct ocf_request *req;
req = ocf_req_new(cache, core_id, addr, bytes, rw);
req = ocf_req_new(queue, core, addr, bytes, rw);
if (likely(req) && ocf_req_alloc_map(req)) {
ocf_req_put(req);
@@ -247,14 +252,13 @@ struct ocf_request *ocf_req_new_extended(struct ocf_cache *cache,
return req;
}
struct ocf_request *ocf_req_new_discard(struct ocf_cache *cache,
ocf_core_id_t core_id, uint64_t addr, uint32_t bytes, int rw)
struct ocf_request *ocf_req_new_discard(ocf_queue_t queue, ocf_core_t core,
uint64_t addr, uint32_t bytes, int rw)
{
struct ocf_request *req;
req = ocf_req_new_extended(cache, core_id, addr,
OCF_MIN(bytes, MAX_TRIM_RQ_SIZE),rw);
req = ocf_req_new_extended(queue, core, addr,
OCF_MIN(bytes, MAX_TRIM_RQ_SIZE), rw);
if (!req)
return NULL;
@@ -279,6 +283,8 @@ void ocf_req_put(struct ocf_request *req)
if (env_atomic_dec_return(&req->ref_count))
return;
ocf_queue_put(req->io_queue);
OCF_DEBUG_TRACE(req->cache);
if (!req->d2c && !env_atomic_dec_return(