Added mempool test cases with zero-copy get and put API's
Signed-off-by: Kamalakshitha Aligeri <kamalakshitha.alig...@arm.com>
---
Link:
https://patchwork.dpdk.org/project/dpdk/patch/20221227151700.80887-1...@smartsharesystems.com/
1. Added mempool test cases with zero-copy get and put API's
app/test/test_mempool.c | 124 +++++++++++++++++++++++++++++++++++++++-
1 file changed, 122 insertions(+), 2 deletions(-)
diff --git a/app/test/test_mempool.c b/app/test/test_mempool.c
index 8e493eda47..a635a514a7 100644
--- a/app/test/test_mempool.c
+++ b/app/test/test_mempool.c
@@ -72,6 +72,122 @@ my_obj_init(struct rte_mempool *mp, __rte_unused void *arg,
*objnum = i;
}
+/* basic tests with zero-copy API's (done on one core) */
+static int
+test_mempool_basic_zc_api(struct rte_mempool *mp, int use_external_cache)
+{
+ uint32_t *objnum;
+ void **objtable;
+ void *obj, *obj2;
+ char *obj_data;
+ int ret = 0;
+ unsigned int i, j;
+ int offset;
+ struct rte_mempool_cache *cache;
+ void **cache_objs;
+
+ if (use_external_cache) {
+ /* Create a user-owned mempool cache. */
+ cache = rte_mempool_cache_create(RTE_MEMPOOL_CACHE_MAX_SIZE,
+ SOCKET_ID_ANY);
+ if (cache == NULL)
+ RET_ERR();
+ } else {
+ /* May be NULL if cache is disabled. */
+ cache = rte_mempool_default_cache(mp, rte_lcore_id());
+ }
+
+ /* dump the mempool status */
+ rte_mempool_dump(stdout, mp);
+
+ printf("get an object\n");
+ cache_objs = rte_mempool_cache_zc_get_bulk(cache, mp, 1);
+ obj = *cache_objs;
+ rte_mempool_dump(stdout, mp);
+
+ /* tests that improve coverage */
+ printf("get object count\n");
+ /* We have to count the extra caches, one in this case. */
+ offset = use_external_cache ? 1 * cache->len : 0;
+ if (rte_mempool_avail_count(mp) + offset != MEMPOOL_SIZE - 1)
+ GOTO_ERR(ret, out);
+
+ printf("get private data\n");
+ if (rte_mempool_get_priv(mp) != (char *)mp +
+ RTE_MEMPOOL_HEADER_SIZE(mp, mp->cache_size))
+ GOTO_ERR(ret, out);
+
+#ifndef RTE_EXEC_ENV_FREEBSD /* rte_mem_virt2iova() not supported on bsd */
+ printf("get physical address of an object\n");
+ if (rte_mempool_virt2iova(obj) != rte_mem_virt2iova(obj))
+ GOTO_ERR(ret, out);
+#endif
+
+ printf("put the object back\n");
+ cache_objs = rte_mempool_cache_zc_put_bulk(cache, mp, 1);
+ rte_memcpy(cache_objs, &obj, sizeof(void *));
+ rte_mempool_dump(stdout, mp);
+
+ printf("get 2 objects\n");
+ cache_objs = rte_mempool_cache_zc_get_bulk(cache, mp, 1);
+ obj = *cache_objs;
+ cache_objs = rte_mempool_cache_zc_get_bulk(cache, mp, 1);
+ obj2 = *cache_objs;
+ rte_mempool_dump(stdout, mp);
+
+ printf("put the objects back\n");
+ cache_objs = rte_mempool_cache_zc_put_bulk(cache, mp, 1);
+ rte_memcpy(cache_objs, &obj, sizeof(void *));
+ cache_objs = rte_mempool_cache_zc_put_bulk(cache, mp, 1);
+ rte_memcpy(cache_objs, &obj2, sizeof(void *));
+ rte_mempool_dump(stdout, mp);
+
+ /*
+ * get many objects: we cannot get them all because the cache
+ * on other cores may not be empty.
+ */
+ objtable = malloc(MEMPOOL_SIZE * sizeof(void *));
+ if (objtable == NULL)
+ GOTO_ERR(ret, out);
+
+ for (i = 0; i < MEMPOOL_SIZE; i++) {
+ cache_objs = rte_mempool_cache_zc_get_bulk(cache, mp, 1);
+ objtable[i] = *cache_objs;
+ }
+
+ /*
+ * for each object, check that its content was not modified,
+ * and put objects back in pool
+ */
+ while (i--) {
+ obj = objtable[i];
+ obj_data = obj;
+ objnum = obj;
+ if (*objnum > MEMPOOL_SIZE) {
+ printf("bad object number(%d)\n", *objnum);
+ ret = -1;
+ break;
+ }
+ for (j = sizeof(*objnum); j < mp->elt_size; j++) {
+ if (obj_data[j] != 0)
+ ret = -1;
+ }
+ cache_objs = rte_mempool_cache_zc_put_bulk(cache, mp, 1);
+ rte_memcpy(cache_objs, &objtable[i], sizeof(void *));
+ }
+
+ free(objtable);
+ if (ret == -1)
+ printf("objects were modified!\n");
+
+out:
+ if (use_external_cache) {
+ rte_mempool_cache_flush(cache, mp);
+ rte_mempool_cache_free(cache);
+ }
+
+ return ret;
+}
/* basic tests (done on one core) */
static int
test_mempool_basic(struct rte_mempool *mp, int use_external_cache)
@@ -982,8 +1098,12 @@ test_mempool(void)
if (test_mempool_basic(mp_nocache, 0) < 0)
GOTO_ERR(ret, err);
- /* basic tests with cache */
- if (test_mempool_basic(mp_cache, 0) < 0)
+ /* basic tests with zero-copy API's */
+ if (test_mempool_basic_zc_api(mp_cache, 0) < 0)
+ GOTO_ERR(ret, err);
+
+ /* basic tests with user-owned cache and zero-copy API's */
+ if (test_mempool_basic_zc_api(mp_nocache, 1) < 0)
GOTO_ERR(ret, err);
/* basic tests with user-owned cache */
--
2.25.1
