#define MBUF_TEST_HDR2_LEN 30
#define MBUF_TEST_ALL_HDRS_LEN (MBUF_TEST_HDR1_LEN+MBUF_TEST_HDR2_LEN)
+/* size of private data for mbuf in pktmbuf_pool2 */
+#define MBUF2_PRIV_SIZE 128
+
#define REFCNT_MAX_ITER 64
#define REFCNT_MAX_TIMEOUT 10
#define REFCNT_MAX_REF (RTE_MAX_LCORE)
#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;
+static struct rte_mempool *pktmbuf_pool2 = NULL;
#ifdef RTE_MBUF_REFCNT_ATOMIC
* - Repeat the test to check that allocation operations
* reinitialize the mbuf correctly.
*
+ * #. Test packet cloning
+ * - Clone a mbuf and verify the data
+ * - Clone the cloned mbuf and verify the data
+ * - Attach a mbuf to another that does not have the same priv_size.
*/
#define GOTO_FAIL(str, ...) do { \
{
struct rte_mbuf *m = NULL;
struct rte_mbuf *clone = NULL;
+ struct rte_mbuf *clone2 = NULL;
+ unaligned_uint32_t *data;
/* alloc a mbuf */
m = rte_pktmbuf_alloc(pktmbuf_pool);
if (rte_pktmbuf_pkt_len(m) != 0)
GOTO_FAIL("Bad length");
+ rte_pktmbuf_append(m, sizeof(uint32_t));
+ data = rte_pktmbuf_mtod(m, unaligned_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");
+
+ data = rte_pktmbuf_mtod(clone, unaligned_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, unaligned_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, unaligned_uint32_t *);
+ if (*data != MAGIC_DATA)
+ GOTO_FAIL("invalid data in clone\n");
+
+ data = rte_pktmbuf_mtod(clone->next, unaligned_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");
+
+ /* try to clone the clone */
+
+ clone2 = rte_pktmbuf_clone(clone, pktmbuf_pool);
+ if (clone2 == NULL)
+ GOTO_FAIL("cannot clone the clone\n");
+
+ data = rte_pktmbuf_mtod(clone2, unaligned_uint32_t *);
+ if (*data != MAGIC_DATA)
+ GOTO_FAIL("invalid data in clone2\n");
+
+ data = rte_pktmbuf_mtod(clone2->next, unaligned_uint32_t *);
+ if (*data != MAGIC_DATA)
+ GOTO_FAIL("invalid data in clone2->next\n");
+
+ if (rte_mbuf_refcnt_read(m) != 3)
+ GOTO_FAIL("invalid refcnt in m\n");
+
+ if (rte_mbuf_refcnt_read(m->next) != 3)
+ GOTO_FAIL("invalid refcnt in m->next\n");
+
/* free mbuf */
rte_pktmbuf_free(m);
rte_pktmbuf_free(clone);
+ rte_pktmbuf_free(clone2);
+
m = NULL;
clone = NULL;
+ clone2 = NULL;
+ printf("%s ok\n", __func__);
return 0;
fail:
if (m)
rte_pktmbuf_free(m);
+ if (clone)
+ rte_pktmbuf_free(clone);
+ if (clone2)
+ rte_pktmbuf_free(clone2);
return -1;
}
-#undef GOTO_FAIL
+static int
+test_attach_from_different_pool(void)
+{
+ struct rte_mbuf *m = NULL;
+ struct rte_mbuf *clone = NULL;
+ struct rte_mbuf *clone2 = NULL;
+ char *data, *c_data, *c_data2;
+
+ /* alloc a mbuf */
+ m = rte_pktmbuf_alloc(pktmbuf_pool);
+ if (m == NULL)
+ GOTO_FAIL("cannot allocate mbuf");
+
+ if (rte_pktmbuf_pkt_len(m) != 0)
+ GOTO_FAIL("Bad length");
+
+ data = rte_pktmbuf_mtod(m, char *);
+
+ /* allocate a new mbuf from the second pool, and attach it to the first
+ * mbuf */
+ clone = rte_pktmbuf_alloc(pktmbuf_pool2);
+ if (clone == NULL)
+ GOTO_FAIL("cannot allocate mbuf from second pool\n");
+
+ /* check data room size and priv size, and erase priv */
+ if (rte_pktmbuf_data_room_size(clone->pool) != 0)
+ GOTO_FAIL("data room size should be 0\n");
+ if (rte_pktmbuf_priv_size(clone->pool) != MBUF2_PRIV_SIZE)
+ GOTO_FAIL("data room size should be %d\n", MBUF2_PRIV_SIZE);
+ memset(clone + 1, 0, MBUF2_PRIV_SIZE);
+
+ /* save data pointer to compare it after detach() */
+ c_data = rte_pktmbuf_mtod(clone, char *);
+ if (c_data != (char *)clone + sizeof(*clone) + MBUF2_PRIV_SIZE)
+ GOTO_FAIL("bad data pointer in clone");
+ if (rte_pktmbuf_headroom(clone) != 0)
+ GOTO_FAIL("bad headroom in clone");
+
+ rte_pktmbuf_attach(clone, m);
+
+ if (rte_pktmbuf_mtod(clone, char *) != data)
+ GOTO_FAIL("clone was not attached properly\n");
+ if (rte_pktmbuf_headroom(clone) != RTE_PKTMBUF_HEADROOM)
+ GOTO_FAIL("bad headroom in clone after attach");
+ if (rte_mbuf_refcnt_read(m) != 2)
+ GOTO_FAIL("invalid refcnt in m\n");
+
+ /* allocate a new mbuf from the second pool, and attach it to the first
+ * cloned mbuf */
+ clone2 = rte_pktmbuf_alloc(pktmbuf_pool2);
+ if (clone2 == NULL)
+ GOTO_FAIL("cannot allocate clone2 from second pool\n");
+
+ /* check data room size and priv size, and erase priv */
+ if (rte_pktmbuf_data_room_size(clone2->pool) != 0)
+ GOTO_FAIL("data room size should be 0\n");
+ if (rte_pktmbuf_priv_size(clone2->pool) != MBUF2_PRIV_SIZE)
+ GOTO_FAIL("data room size should be %d\n", MBUF2_PRIV_SIZE);
+ memset(clone2 + 1, 0, MBUF2_PRIV_SIZE);
+
+ /* save data pointer to compare it after detach() */
+ c_data2 = rte_pktmbuf_mtod(clone2, char *);
+ if (c_data2 != (char *)clone2 + sizeof(*clone2) + MBUF2_PRIV_SIZE)
+ GOTO_FAIL("bad data pointer in clone2");
+ if (rte_pktmbuf_headroom(clone2) != 0)
+ GOTO_FAIL("bad headroom in clone2");
+
+ rte_pktmbuf_attach(clone2, clone);
+
+ if (rte_pktmbuf_mtod(clone2, char *) != data)
+ GOTO_FAIL("clone2 was not attached properly\n");
+ if (rte_pktmbuf_headroom(clone2) != RTE_PKTMBUF_HEADROOM)
+ GOTO_FAIL("bad headroom in clone2 after attach");
+ if (rte_mbuf_refcnt_read(m) != 3)
+ GOTO_FAIL("invalid refcnt in m\n");
+
+ /* detach the clones */
+ rte_pktmbuf_detach(clone);
+ if (c_data != rte_pktmbuf_mtod(clone, char *))
+ GOTO_FAIL("clone was not detached properly\n");
+
+ rte_pktmbuf_detach(clone2);
+ if (c_data2 != rte_pktmbuf_mtod(clone2, char *))
+ GOTO_FAIL("clone2 was not detached properly\n");
+
+ /* free the clones and the initial mbuf */
+ rte_pktmbuf_free(clone2);
+ rte_pktmbuf_free(clone);
+ rte_pktmbuf_free(m);
+ printf("%s ok\n", __func__);
+ return 0;
+fail:
+ if (m)
+ rte_pktmbuf_free(m);
+ if (clone)
+ rte_pktmbuf_free(clone);
+ if (clone2)
+ rte_pktmbuf_free(clone2);
+ return -1;
+}
+#undef GOTO_FAIL
/*
* test allocation and free of mbufs
if (m[i] == NULL) {
printf("rte_pktmbuf_alloc() failed (%u)\n", i);
ret = -1;
+ break;
}
m[i]->data_off += 64;
}
if (m[i] == NULL) {
printf("rte_pktmbuf_alloc() failed (%u)\n", i);
ret = -1;
+ break;
}
if (m[i]->data_off != RTE_PKTMBUF_HEADROOM) {
printf("invalid data_off\n");
printf("%s finished at lcore %u, "
"number of freed mbufs: %u\n",
__func__, lcore, free);
- return (0);
+ return 0;
}
static void
rte_wmb();
printf("%s finished at lcore %u\n", __func__, lcore);
- return (0);
+ return 0;
}
#endif
if ((lnum = rte_lcore_count()) == 1) {
printf("skipping %s, number of lcores: %u is not enough\n",
__func__, lnum);
- return (0);
+ return 0;
}
printf("starting %s, at %u lcores\n", __func__, lnum);
SOCKET_ID_ANY)) == NULL) {
printf("%s: cannot allocate " MAKE_STRING(refcnt_pool) "\n",
__func__);
- return (-1);
+ return -1;
}
if (refcnt_mbuf_ring == NULL &&
RING_F_SP_ENQ)) == NULL) {
printf("%s: cannot allocate " MAKE_STRING(refcnt_mbuf_ring)
"\n", __func__);
- return (-1);
+ return -1;
}
refcnt_stop_slaves = 0;
rte_ring_dump(stdout, refcnt_mbuf_ring);
#endif
- return (0);
+ return 0;
}
#include <unistd.h>
static int
test_mbuf(void)
{
- RTE_BUILD_BUG_ON(sizeof(struct rte_mbuf) != RTE_CACHE_LINE_SIZE * 2);
+ RTE_BUILD_BUG_ON(sizeof(struct rte_mbuf) != RTE_CACHE_LINE_MIN_SIZE * 2);
/* create pktmbuf pool if it does not exist */
if (pktmbuf_pool == NULL) {
return -1;
}
+ /* create a specific pktmbuf pool with a priv_size != 0 and no data
+ * room size */
+ if (pktmbuf_pool2 == NULL) {
+ pktmbuf_pool2 = rte_pktmbuf_pool_create("test_pktmbuf_pool2",
+ NB_MBUF, 32, MBUF2_PRIV_SIZE, 0, SOCKET_ID_ANY);
+ }
+
+ if (pktmbuf_pool2 == NULL) {
+ printf("cannot allocate mbuf pool\n");
+ return -1;
+ }
+
/* test multiple mbuf alloc */
if (test_pktmbuf_pool() < 0) {
printf("test_mbuf_pool() failed\n");
return -1;
}
+ if (test_attach_from_different_pool() < 0) {
+ printf("test_attach_from_different_pool() failed\n");
+ return -1;
+ }
+
if (test_refcnt_mbuf()<0){
printf("test_refcnt_mbuf() failed \n");
return -1;
git.droids-corp.org / dpdk.git / blobdiff