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app/test: enhance mbuf refcnt check

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Check that the data in the cloned mbuf is the same than in the
reference mbuf.
Check that the reference counter is incremented for each segment.

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
This commit is contained in:
Olivier Matz 2015-04-22 11:57:28 +02:00 committed by Thomas Monjalon
parent f1022aba76
commit 4ccd2bb3a9
1 changed files with 40 additions and 1 deletions
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41
app/test/test_mbuf.c
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@ -75,6 +75,8 @@
#define REFCNT_MBUF_NUM 64
#define REFCNT_RING_SIZE (REFCNT_MBUF_NUM * REFCNT_MAX_REF)
#define MAGIC_DATA 0x42424242
#define MAKE_STRING(x) # x
static struct rte_mempool *pktmbuf_pool = NULL;
@ -122,6 +124,8 @@ static unsigned refcnt_lcore[RTE_MAX_LCORE];
* - Repeat the test to check that allocation operations
* reinitialize the mbuf correctly.
*
* #. Test packet cloning
* - Clone a mbuf and verify the data
*/
#define GOTO_FAIL(str, ...) do { \
@ -322,6 +326,7 @@ testclone_testupdate_testdetach(void)
{
struct rte_mbuf *m = NULL;
struct rte_mbuf *clone = NULL;
uint32_t *data;
/* alloc a mbuf */
m = rte_pktmbuf_alloc(pktmbuf_pool);
@ -331,21 +336,53 @@ testclone_testupdate_testdetach(void)
if (rte_pktmbuf_pkt_len(m) != 0)
GOTO_FAIL("Bad length");
rte_pktmbuf_append(m, sizeof(uint32_t));
data = rte_pktmbuf_mtod(m, uint32_t *);
*data = MAGIC_DATA;
/* clone the allocated mbuf */
clone = rte_pktmbuf_clone(m, pktmbuf_pool);
if (clone == NULL)
GOTO_FAIL("cannot clone data\n");
rte_pktmbuf_free(clone);
data = rte_pktmbuf_mtod(clone, uint32_t *);
if (*data != MAGIC_DATA)
GOTO_FAIL("invalid data in clone\n");
if (rte_mbuf_refcnt_read(m) != 2)
GOTO_FAIL("invalid refcnt in m\n");
/* free the clone */
rte_pktmbuf_free(clone);
clone = NULL;
/* same test with a chained mbuf */
m->next = rte_pktmbuf_alloc(pktmbuf_pool);
if (m->next == NULL)
GOTO_FAIL("Next Pkt Null\n");
rte_pktmbuf_append(m->next, sizeof(uint32_t));
data = rte_pktmbuf_mtod(m->next, uint32_t *);
*data = MAGIC_DATA;
clone = rte_pktmbuf_clone(m, pktmbuf_pool);
if (clone == NULL)
GOTO_FAIL("cannot clone data\n");
data = rte_pktmbuf_mtod(clone, uint32_t *);
if (*data != MAGIC_DATA)
GOTO_FAIL("invalid data in clone\n");
data = rte_pktmbuf_mtod(clone->next, uint32_t *);
if (*data != MAGIC_DATA)
GOTO_FAIL("invalid data in clone->next\n");
if (rte_mbuf_refcnt_read(m) != 2)
GOTO_FAIL("invalid refcnt in m\n");
if (rte_mbuf_refcnt_read(m->next) != 2)
GOTO_FAIL("invalid refcnt in m->next\n");
/* free mbuf */
rte_pktmbuf_free(m);
rte_pktmbuf_free(clone);
@ -356,6 +393,8 @@ testclone_testupdate_testdetach(void)
fail:
if (m)
rte_pktmbuf_free(m);
if (clone)
rte_pktmbuf_free(clone);
return -1;
}
#undef GOTO_FAIL