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numam-dpdk/app/test/test_mbuf.c
Joyce Kong 1f8cc1a388 app: remove unneeded atomic header include 
Remove the unnecessary rte_atomic.h included in app modules.

Signed-off-by: Joyce Kong <joyce.kong@arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang@arm.com>
2021-11-17 11:07:06 +01:00

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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2014 Intel Corporation
*/
#include <string.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <inttypes.h>
#include <errno.h>
#include <sys/queue.h>
#include <rte_common.h>
#include <rte_errno.h>
#include <rte_debug.h>
#include <rte_log.h>
#include <rte_memory.h>
#include <rte_memcpy.h>
#include <rte_launch.h>
#include <rte_eal.h>
#include <rte_per_lcore.h>
#include <rte_lcore.h>
#include <rte_branch_prediction.h>
#include <rte_ring.h>
#include <rte_mempool.h>
#include <rte_mbuf.h>
#include <rte_random.h>
#include <rte_cycles.h>
#include <rte_malloc.h>
#include <rte_ether.h>
#include <rte_ip.h>
#include <rte_tcp.h>
#include <rte_mbuf_dyn.h>
#include "test.h"
#define MEMPOOL_CACHE_SIZE 32
#define MBUF_DATA_SIZE 2048
#define NB_MBUF 128
#define MBUF_TEST_DATA_LEN 1464
#define MBUF_TEST_DATA_LEN2 50
#define MBUF_TEST_DATA_LEN3 256
#define MBUF_TEST_HDR1_LEN 20
#define MBUF_TEST_HDR2_LEN 30
#define MBUF_TEST_ALL_HDRS_LEN (MBUF_TEST_HDR1_LEN+MBUF_TEST_HDR2_LEN)
#define MBUF_TEST_SEG_SIZE 64
#define MBUF_TEST_BURST 8
#define EXT_BUF_TEST_DATA_LEN 1024
#define MBUF_MAX_SEG 16
#define MBUF_NO_HEADER 0
#define MBUF_HEADER 1
#define MBUF_NEG_TEST_READ 2
#define VAL_NAME(flag) { flag, #flag }
/* chain length in bulk test */
#define CHAIN_LEN 16
/* 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
#ifdef RTE_MBUF_REFCNT_ATOMIC
static volatile uint32_t refcnt_stop_workers;
static unsigned refcnt_lcore[RTE_MAX_LCORE];
#endif
/*
* MBUF
* ====
*
* #. Allocate a mbuf pool.
*
* - The pool contains NB_MBUF elements, where each mbuf is MBUF_SIZE
* bytes long.
*
* #. Test multiple allocations of mbufs from this pool.
*
* - Allocate NB_MBUF and store pointers in a table.
* - If an allocation fails, return an error.
* - Free all these mbufs.
* - Repeat the same test to check that mbufs were freed correctly.
*
* #. Test data manipulation in pktmbuf.
*
* - Alloc an mbuf.
* - Append data using rte_pktmbuf_append().
* - Test for error in rte_pktmbuf_append() when len is too large.
* - Trim data at the end of mbuf using rte_pktmbuf_trim().
* - Test for error in rte_pktmbuf_trim() when len is too large.
* - Prepend a header using rte_pktmbuf_prepend().
* - Test for error in rte_pktmbuf_prepend() when len is too large.
* - Remove data at the beginning of mbuf using rte_pktmbuf_adj().
* - Test for error in rte_pktmbuf_adj() when len is too large.
* - Check that appended data is not corrupt.
* - Free the mbuf.
* - Between all these tests, check data_len and pkt_len, and
* that the mbuf is contiguous.
* - 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 { \
printf("mbuf test FAILED (l.%d): <" str ">\n", \
__LINE__, ##__VA_ARGS__); \
goto fail; \
} while(0)
/*
* test data manipulation in mbuf with non-ascii data
*/
static int
test_pktmbuf_with_non_ascii_data(struct rte_mempool *pktmbuf_pool)
{
struct rte_mbuf *m = NULL;
char *data;
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_append(m, MBUF_TEST_DATA_LEN);
if (data == NULL)
GOTO_FAIL("Cannot append data");
if (rte_pktmbuf_pkt_len(m) != MBUF_TEST_DATA_LEN)
GOTO_FAIL("Bad pkt length");
if (rte_pktmbuf_data_len(m) != MBUF_TEST_DATA_LEN)
GOTO_FAIL("Bad data length");
memset(data, 0xff, rte_pktmbuf_pkt_len(m));
if (!rte_pktmbuf_is_contiguous(m))
GOTO_FAIL("Buffer should be continuous");
rte_pktmbuf_dump(stdout, m, MBUF_TEST_DATA_LEN);
rte_pktmbuf_free(m);
return 0;
fail:
if(m) {
rte_pktmbuf_free(m);
}
return -1;
}
/*
* test data manipulation in mbuf
*/
static int
test_one_pktmbuf(struct rte_mempool *pktmbuf_pool)
{
struct rte_mbuf *m = NULL;
char *data, *data2, *hdr;
unsigned i;
printf("Test pktmbuf API\n");
/* 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");
rte_pktmbuf_dump(stdout, m, 0);
/* append data */
data = rte_pktmbuf_append(m, MBUF_TEST_DATA_LEN);
if (data == NULL)
GOTO_FAIL("Cannot append data");
if (rte_pktmbuf_pkt_len(m) != MBUF_TEST_DATA_LEN)
GOTO_FAIL("Bad pkt length");
if (rte_pktmbuf_data_len(m) != MBUF_TEST_DATA_LEN)
GOTO_FAIL("Bad data length");
memset(data, 0x66, rte_pktmbuf_pkt_len(m));
if (!rte_pktmbuf_is_contiguous(m))
GOTO_FAIL("Buffer should be continuous");
rte_pktmbuf_dump(stdout, m, MBUF_TEST_DATA_LEN);
rte_pktmbuf_dump(stdout, m, 2*MBUF_TEST_DATA_LEN);
/* this append should fail */
data2 = rte_pktmbuf_append(m, (uint16_t)(rte_pktmbuf_tailroom(m) + 1));
if (data2 != NULL)
GOTO_FAIL("Append should not succeed");
/* append some more data */
data2 = rte_pktmbuf_append(m, MBUF_TEST_DATA_LEN2);
if (data2 == NULL)
GOTO_FAIL("Cannot append data");
if (rte_pktmbuf_pkt_len(m) != MBUF_TEST_DATA_LEN + MBUF_TEST_DATA_LEN2)
GOTO_FAIL("Bad pkt length");
if (rte_pktmbuf_data_len(m) != MBUF_TEST_DATA_LEN + MBUF_TEST_DATA_LEN2)
GOTO_FAIL("Bad data length");
if (!rte_pktmbuf_is_contiguous(m))
GOTO_FAIL("Buffer should be continuous");
/* trim data at the end of mbuf */
if (rte_pktmbuf_trim(m, MBUF_TEST_DATA_LEN2) < 0)
GOTO_FAIL("Cannot trim data");
if (rte_pktmbuf_pkt_len(m) != MBUF_TEST_DATA_LEN)
GOTO_FAIL("Bad pkt length");
if (rte_pktmbuf_data_len(m) != MBUF_TEST_DATA_LEN)
GOTO_FAIL("Bad data length");
if (!rte_pktmbuf_is_contiguous(m))
GOTO_FAIL("Buffer should be continuous");
/* this trim should fail */
if (rte_pktmbuf_trim(m, (uint16_t)(rte_pktmbuf_data_len(m) + 1)) == 0)
GOTO_FAIL("trim should not succeed");
/* prepend one header */
hdr = rte_pktmbuf_prepend(m, MBUF_TEST_HDR1_LEN);
if (hdr == NULL)
GOTO_FAIL("Cannot prepend");
if (data - hdr != MBUF_TEST_HDR1_LEN)
GOTO_FAIL("Prepend failed");
if (rte_pktmbuf_pkt_len(m) != MBUF_TEST_DATA_LEN + MBUF_TEST_HDR1_LEN)
GOTO_FAIL("Bad pkt length");
if (rte_pktmbuf_data_len(m) != MBUF_TEST_DATA_LEN + MBUF_TEST_HDR1_LEN)
GOTO_FAIL("Bad data length");
if (!rte_pktmbuf_is_contiguous(m))
GOTO_FAIL("Buffer should be continuous");
memset(hdr, 0x55, MBUF_TEST_HDR1_LEN);
/* prepend another header */
hdr = rte_pktmbuf_prepend(m, MBUF_TEST_HDR2_LEN);
if (hdr == NULL)
GOTO_FAIL("Cannot prepend");
if (data - hdr != MBUF_TEST_ALL_HDRS_LEN)
GOTO_FAIL("Prepend failed");
if (rte_pktmbuf_pkt_len(m) != MBUF_TEST_DATA_LEN + MBUF_TEST_ALL_HDRS_LEN)
GOTO_FAIL("Bad pkt length");
if (rte_pktmbuf_data_len(m) != MBUF_TEST_DATA_LEN + MBUF_TEST_ALL_HDRS_LEN)
GOTO_FAIL("Bad data length");
if (!rte_pktmbuf_is_contiguous(m))
GOTO_FAIL("Buffer should be continuous");
memset(hdr, 0x55, MBUF_TEST_HDR2_LEN);
rte_mbuf_sanity_check(m, 1);
rte_mbuf_sanity_check(m, 0);
rte_pktmbuf_dump(stdout, m, 0);
/* this prepend should fail */
hdr = rte_pktmbuf_prepend(m, (uint16_t)(rte_pktmbuf_headroom(m) + 1));
if (hdr != NULL)
GOTO_FAIL("prepend should not succeed");
/* remove data at beginning of mbuf (adj) */
if (data != rte_pktmbuf_adj(m, MBUF_TEST_ALL_HDRS_LEN))
GOTO_FAIL("rte_pktmbuf_adj failed");
if (rte_pktmbuf_pkt_len(m) != MBUF_TEST_DATA_LEN)
GOTO_FAIL("Bad pkt length");
if (rte_pktmbuf_data_len(m) != MBUF_TEST_DATA_LEN)
GOTO_FAIL("Bad data length");
if (!rte_pktmbuf_is_contiguous(m))
GOTO_FAIL("Buffer should be continuous");
/* this adj should fail */
if (rte_pktmbuf_adj(m, (uint16_t)(rte_pktmbuf_data_len(m) + 1)) != NULL)
GOTO_FAIL("rte_pktmbuf_adj should not succeed");
/* check data */
if (!rte_pktmbuf_is_contiguous(m))
GOTO_FAIL("Buffer should be continuous");
for (i=0; i<MBUF_TEST_DATA_LEN; i++) {
if (data[i] != 0x66)
GOTO_FAIL("Data corrupted at offset %u", i);
}
/* free mbuf */
rte_pktmbuf_free(m);
m = NULL;
return 0;
fail:
if (m)
rte_pktmbuf_free(m);
return -1;
}
static uint16_t
testclone_refcnt_read(struct rte_mbuf *m)
{
return RTE_MBUF_HAS_PINNED_EXTBUF(m) ?
rte_mbuf_ext_refcnt_read(m->shinfo) :
rte_mbuf_refcnt_read(m);
}
static int
testclone_testupdate_testdetach(struct rte_mempool *pktmbuf_pool,
struct rte_mempool *clone_pool)
{
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 (m == NULL)
GOTO_FAIL("ooops not allocating mbuf");
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, clone_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 (testclone_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");
m->nb_segs = 2;
rte_pktmbuf_append(m->next, sizeof(uint32_t));
m->pkt_len = 2 * sizeof(uint32_t);
data = rte_pktmbuf_mtod(m->next, unaligned_uint32_t *);
*data = MAGIC_DATA;
clone = rte_pktmbuf_clone(m, clone_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 (testclone_refcnt_read(m) != 2)
GOTO_FAIL("invalid refcnt in m\n");
if (testclone_refcnt_read(m->next) != 2)
GOTO_FAIL("invalid refcnt in m->next\n");
/* try to clone the clone */
clone2 = rte_pktmbuf_clone(clone, clone_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 (testclone_refcnt_read(m) != 3)
GOTO_FAIL("invalid refcnt in m\n");
if (testclone_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;
}
static int
test_pktmbuf_copy(struct rte_mempool *pktmbuf_pool,
struct rte_mempool *clone_pool)
{
struct rte_mbuf *m = NULL;
struct rte_mbuf *copy = NULL;
struct rte_mbuf *copy2 = NULL;
struct rte_mbuf *clone = NULL;
unaligned_uint32_t *data;
/* alloc a mbuf */
m = rte_pktmbuf_alloc(pktmbuf_pool);
if (m == NULL)
GOTO_FAIL("ooops not allocating mbuf");
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;
/* copy the allocated mbuf */
copy = rte_pktmbuf_copy(m, pktmbuf_pool, 0, UINT32_MAX);
if (copy == NULL)
GOTO_FAIL("cannot copy data\n");
if (rte_pktmbuf_pkt_len(copy) != sizeof(uint32_t))
GOTO_FAIL("copy length incorrect\n");
if (rte_pktmbuf_data_len(copy) != sizeof(uint32_t))
GOTO_FAIL("copy data length incorrect\n");
data = rte_pktmbuf_mtod(copy, unaligned_uint32_t *);
if (*data != MAGIC_DATA)
GOTO_FAIL("invalid data in copy\n");
/* free the copy */
rte_pktmbuf_free(copy);
copy = NULL;
/* same test with a cloned mbuf */
clone = rte_pktmbuf_clone(m, clone_pool);
if (clone == NULL)
GOTO_FAIL("cannot clone data\n");
if ((!RTE_MBUF_HAS_PINNED_EXTBUF(m) &&
!RTE_MBUF_CLONED(clone)) ||
(RTE_MBUF_HAS_PINNED_EXTBUF(m) &&
!RTE_MBUF_HAS_EXTBUF(clone)))
GOTO_FAIL("clone did not give a cloned mbuf\n");
copy = rte_pktmbuf_copy(clone, pktmbuf_pool, 0, UINT32_MAX);
if (copy == NULL)
GOTO_FAIL("cannot copy cloned mbuf\n");
if (RTE_MBUF_CLONED(copy))
GOTO_FAIL("copy of clone is cloned?\n");
if (rte_pktmbuf_pkt_len(copy) != sizeof(uint32_t))
GOTO_FAIL("copy clone length incorrect\n");
if (rte_pktmbuf_data_len(copy) != sizeof(uint32_t))
GOTO_FAIL("copy clone data length incorrect\n");
data = rte_pktmbuf_mtod(copy, unaligned_uint32_t *);
if (*data != MAGIC_DATA)
GOTO_FAIL("invalid data in clone copy\n");
rte_pktmbuf_free(clone);
rte_pktmbuf_free(copy);
copy = NULL;
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");
m->nb_segs = 2;
rte_pktmbuf_append(m->next, sizeof(uint32_t));
m->pkt_len = 2 * sizeof(uint32_t);
data = rte_pktmbuf_mtod(m->next, unaligned_uint32_t *);
*data = MAGIC_DATA + 1;
copy = rte_pktmbuf_copy(m, pktmbuf_pool, 0, UINT32_MAX);
if (copy == NULL)
GOTO_FAIL("cannot copy data\n");
if (rte_pktmbuf_pkt_len(copy) != 2 * sizeof(uint32_t))
GOTO_FAIL("chain copy length incorrect\n");
if (rte_pktmbuf_data_len(copy) != 2 * sizeof(uint32_t))
GOTO_FAIL("chain copy data length incorrect\n");
data = rte_pktmbuf_mtod(copy, unaligned_uint32_t *);
if (data[0] != MAGIC_DATA || data[1] != MAGIC_DATA + 1)
GOTO_FAIL("invalid data in copy\n");
rte_pktmbuf_free(copy2);
/* test offset copy */
copy2 = rte_pktmbuf_copy(copy, pktmbuf_pool,
sizeof(uint32_t), UINT32_MAX);
if (copy2 == NULL)
GOTO_FAIL("cannot copy the copy\n");
if (rte_pktmbuf_pkt_len(copy2) != sizeof(uint32_t))
GOTO_FAIL("copy with offset, length incorrect\n");
if (rte_pktmbuf_data_len(copy2) != sizeof(uint32_t))
GOTO_FAIL("copy with offset, data length incorrect\n");
data = rte_pktmbuf_mtod(copy2, unaligned_uint32_t *);
if (data[0] != MAGIC_DATA + 1)
GOTO_FAIL("copy with offset, invalid data\n");
rte_pktmbuf_free(copy2);
/* test truncation copy */
copy2 = rte_pktmbuf_copy(copy, pktmbuf_pool,
0, sizeof(uint32_t));
if (copy2 == NULL)
GOTO_FAIL("cannot copy the copy\n");
if (rte_pktmbuf_pkt_len(copy2) != sizeof(uint32_t))
GOTO_FAIL("copy with truncate, length incorrect\n");
if (rte_pktmbuf_data_len(copy2) != sizeof(uint32_t))
GOTO_FAIL("copy with truncate, data length incorrect\n");
data = rte_pktmbuf_mtod(copy2, unaligned_uint32_t *);
if (data[0] != MAGIC_DATA)
GOTO_FAIL("copy with truncate, invalid data\n");
/* free mbuf */
rte_pktmbuf_free(m);
rte_pktmbuf_free(copy);
rte_pktmbuf_free(copy2);
m = NULL;
copy = NULL;
copy2 = NULL;
printf("%s ok\n", __func__);
return 0;
fail:
if (m)
rte_pktmbuf_free(m);
if (copy)
rte_pktmbuf_free(copy);
if (copy2)
rte_pktmbuf_free(copy2);
return -1;
}
static int
test_attach_from_different_pool(struct rte_mempool *pktmbuf_pool,
struct rte_mempool *pktmbuf_pool2)
{
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");
if (rte_mbuf_refcnt_read(m) != 2)
GOTO_FAIL("invalid refcnt in m\n");
rte_pktmbuf_detach(clone2);
if (c_data2 != rte_pktmbuf_mtod(clone2, char *))
GOTO_FAIL("clone2 was not detached properly\n");
if (rte_mbuf_refcnt_read(m) != 1)
GOTO_FAIL("invalid refcnt in m\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;
}
/*
* test allocation and free of mbufs
*/
static int
test_pktmbuf_pool(struct rte_mempool *pktmbuf_pool)
{
unsigned i;
struct rte_mbuf *m[NB_MBUF];
int ret = 0;
for (i=0; i<NB_MBUF; i++)
m[i] = NULL;
/* alloc NB_MBUF mbufs */
for (i=0; i<NB_MBUF; i++) {
m[i] = rte_pktmbuf_alloc(pktmbuf_pool);
if (m[i] == NULL) {
printf("rte_pktmbuf_alloc() failed (%u)\n", i);
ret = -1;
}
}
struct rte_mbuf *extra = NULL;
extra = rte_pktmbuf_alloc(pktmbuf_pool);
if(extra != NULL) {
printf("Error pool not empty");
ret = -1;
}
extra = rte_pktmbuf_clone(m[0], pktmbuf_pool);
if(extra != NULL) {
printf("Error pool not empty");
ret = -1;
}
/* free them */
for (i=0; i<NB_MBUF; i++) {
if (m[i] != NULL)
rte_pktmbuf_free(m[i]);
}
return ret;
}
/*
* test bulk allocation and bulk free of mbufs
*/
static int
test_pktmbuf_pool_bulk(void)
{
struct rte_mempool *pool = NULL;
struct rte_mempool *pool2 = NULL;
unsigned int i;
struct rte_mbuf *m;
struct rte_mbuf *mbufs[NB_MBUF];
int ret = 0;
/* We cannot use the preallocated mbuf pools because their caches
* prevent us from bulk allocating all objects in them.
* So we create our own mbuf pools without caches.
*/
printf("Create mbuf pools for bulk allocation.\n");
pool = rte_pktmbuf_pool_create("test_pktmbuf_bulk",
NB_MBUF, 0, 0, MBUF_DATA_SIZE, SOCKET_ID_ANY);
if (pool == NULL) {
printf("rte_pktmbuf_pool_create() failed. rte_errno %d\n",
rte_errno);
goto err;
}
pool2 = rte_pktmbuf_pool_create("test_pktmbuf_bulk2",
NB_MBUF, 0, 0, MBUF_DATA_SIZE, SOCKET_ID_ANY);
if (pool2 == NULL) {
printf("rte_pktmbuf_pool_create() failed. rte_errno %d\n",
rte_errno);
goto err;
}
/* Preconditions: Mempools must be full. */
if (!(rte_mempool_full(pool) && rte_mempool_full(pool2))) {
printf("Test precondition failed: mempools not full\n");
goto err;
}
if (!(rte_mempool_avail_count(pool) == NB_MBUF &&
rte_mempool_avail_count(pool2) == NB_MBUF)) {
printf("Test precondition failed: mempools: %u+%u != %u+%u",
rte_mempool_avail_count(pool),
rte_mempool_avail_count(pool2),
NB_MBUF, NB_MBUF);
goto err;
}
printf("Test single bulk alloc, followed by multiple bulk free.\n");
/* Bulk allocate all mbufs in the pool, in one go. */
ret = rte_pktmbuf_alloc_bulk(pool, mbufs, NB_MBUF);
if (ret != 0) {
printf("rte_pktmbuf_alloc_bulk() failed: %d\n", ret);
goto err;
}
/* Test that they have been removed from the pool. */
if (!rte_mempool_empty(pool)) {
printf("mempool not empty\n");
goto err;
}
/* Bulk free all mbufs, in four steps. */
RTE_BUILD_BUG_ON(NB_MBUF % 4 != 0);
for (i = 0; i < NB_MBUF; i += NB_MBUF / 4) {
rte_pktmbuf_free_bulk(&mbufs[i], NB_MBUF / 4);
/* Test that they have been returned to the pool. */
if (rte_mempool_avail_count(pool) != i + NB_MBUF / 4) {
printf("mempool avail count incorrect\n");
goto err;
}
}
printf("Test multiple bulk alloc, followed by single bulk free.\n");
/* Bulk allocate all mbufs in the pool, in four steps. */
for (i = 0; i < NB_MBUF; i += NB_MBUF / 4) {
ret = rte_pktmbuf_alloc_bulk(pool, &mbufs[i], NB_MBUF / 4);
if (ret != 0) {
printf("rte_pktmbuf_alloc_bulk() failed: %d\n", ret);
goto err;
}
}
/* Test that they have been removed from the pool. */
if (!rte_mempool_empty(pool)) {
printf("mempool not empty\n");
goto err;
}
/* Bulk free all mbufs, in one go. */
rte_pktmbuf_free_bulk(mbufs, NB_MBUF);
/* Test that they have been returned to the pool. */
if (!rte_mempool_full(pool)) {
printf("mempool not full\n");
goto err;
}
printf("Test bulk free of single long chain.\n");
/* Bulk allocate all mbufs in the pool, in one go. */
ret = rte_pktmbuf_alloc_bulk(pool, mbufs, NB_MBUF);
if (ret != 0) {
printf("rte_pktmbuf_alloc_bulk() failed: %d\n", ret);
goto err;
}
/* Create a long mbuf chain. */
for (i = 1; i < NB_MBUF; i++) {
ret = rte_pktmbuf_chain(mbufs[0], mbufs[i]);
if (ret != 0) {
printf("rte_pktmbuf_chain() failed: %d\n", ret);
goto err;
}
mbufs[i] = NULL;
}
/* Free the mbuf chain containing all the mbufs. */
rte_pktmbuf_free_bulk(mbufs, 1);
/* Test that they have been returned to the pool. */
if (!rte_mempool_full(pool)) {
printf("mempool not full\n");
goto err;
}
printf("Test bulk free of multiple chains using multiple pools.\n");
/* Create mbuf chains containing mbufs from different pools. */
RTE_BUILD_BUG_ON(CHAIN_LEN % 2 != 0);
RTE_BUILD_BUG_ON(NB_MBUF % (CHAIN_LEN / 2) != 0);
for (i = 0; i < NB_MBUF * 2; i++) {
m = rte_pktmbuf_alloc((i & 4) ? pool2 : pool);
if (m == NULL) {
printf("rte_pktmbuf_alloc() failed (%u)\n", i);
goto err;
}
if ((i % CHAIN_LEN) == 0)
mbufs[i / CHAIN_LEN] = m;
else
rte_pktmbuf_chain(mbufs[i / CHAIN_LEN], m);
}
/* Test that both pools have been emptied. */
if (!(rte_mempool_empty(pool) && rte_mempool_empty(pool2))) {
printf("mempools not empty\n");
goto err;
}
/* Free one mbuf chain. */
rte_pktmbuf_free_bulk(mbufs, 1);
/* Test that the segments have been returned to the pools. */
if (!(rte_mempool_avail_count(pool) == CHAIN_LEN / 2 &&
rte_mempool_avail_count(pool2) == CHAIN_LEN / 2)) {
printf("all segments of first mbuf have not been returned\n");
goto err;
}
/* Free the remaining mbuf chains. */
rte_pktmbuf_free_bulk(&mbufs[1], NB_MBUF * 2 / CHAIN_LEN - 1);
/* Test that they have been returned to the pools. */
if (!(rte_mempool_full(pool) && rte_mempool_full(pool2))) {
printf("mempools not full\n");
goto err;
}
ret = 0;
goto done;
err:
ret = -1;
done:
printf("Free mbuf pools for bulk allocation.\n");
rte_mempool_free(pool);
rte_mempool_free(pool2);
return ret;
}
/*
* test that the pointer to the data on a packet mbuf is set properly
*/
static int
test_pktmbuf_pool_ptr(struct rte_mempool *pktmbuf_pool)
{
unsigned i;
struct rte_mbuf *m[NB_MBUF];
int ret = 0;
for (i=0; i<NB_MBUF; i++)
m[i] = NULL;
/* alloc NB_MBUF mbufs */
for (i=0; i<NB_MBUF; i++) {
m[i] = rte_pktmbuf_alloc(pktmbuf_pool);
if (m[i] == NULL) {
printf("rte_pktmbuf_alloc() failed (%u)\n", i);
ret = -1;
break;
}
m[i]->data_off += 64;
}
/* free them */
for (i=0; i<NB_MBUF; i++) {
if (m[i] != NULL)
rte_pktmbuf_free(m[i]);
}
for (i=0; i<NB_MBUF; i++)
m[i] = NULL;
/* alloc NB_MBUF mbufs */
for (i=0; i<NB_MBUF; i++) {
m[i] = rte_pktmbuf_alloc(pktmbuf_pool);
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");
ret = -1;
}
}
/* free them */
for (i=0; i<NB_MBUF; i++) {
if (m[i] != NULL)
rte_pktmbuf_free(m[i]);
}
return ret;
}
static int
test_pktmbuf_free_segment(struct rte_mempool *pktmbuf_pool)
{
unsigned i;
struct rte_mbuf *m[NB_MBUF];
int ret = 0;
for (i=0; i<NB_MBUF; i++)
m[i] = NULL;
/* alloc NB_MBUF mbufs */
for (i=0; i<NB_MBUF; i++) {
m[i] = rte_pktmbuf_alloc(pktmbuf_pool);
if (m[i] == NULL) {
printf("rte_pktmbuf_alloc() failed (%u)\n", i);
ret = -1;
}
}
/* free them */
for (i=0; i<NB_MBUF; i++) {
if (m[i] != NULL) {
struct rte_mbuf *mb, *mt;
mb = m[i];
while(mb != NULL) {
mt = mb;
mb = mb->next;
rte_pktmbuf_free_seg(mt);
}
}
}
return ret;
}
/*
* Stress test for rte_mbuf atomic refcnt.
* Implies that RTE_MBUF_REFCNT_ATOMIC is defined.
* For more efficiency, recommended to run with RTE_LIBRTE_MBUF_DEBUG defined.
*/
#ifdef RTE_MBUF_REFCNT_ATOMIC
static int
test_refcnt_worker(void *arg)
{
unsigned lcore, free;
void *mp = 0;
struct rte_ring *refcnt_mbuf_ring = arg;
lcore = rte_lcore_id();
printf("%s started at lcore %u\n", __func__, lcore);
free = 0;
while (refcnt_stop_workers == 0) {
if (rte_ring_dequeue(refcnt_mbuf_ring, &mp) == 0) {
free++;
rte_pktmbuf_free(mp);
}
}
refcnt_lcore[lcore] += free;
printf("%s finished at lcore %u, "
"number of freed mbufs: %u\n",
__func__, lcore, free);
return 0;
}
static void
test_refcnt_iter(unsigned int lcore, unsigned int iter,
struct rte_mempool *refcnt_pool,
struct rte_ring *refcnt_mbuf_ring)
{
uint16_t ref;
unsigned i, n, tref, wn;
struct rte_mbuf *m;
tref = 0;
/* For each mbuf in the pool:
* - allocate mbuf,
* - increment it's reference up to N+1,
* - enqueue it N times into the ring for worker cores to free.
*/
for (i = 0, n = rte_mempool_avail_count(refcnt_pool);
i != n && (m = rte_pktmbuf_alloc(refcnt_pool)) != NULL;
i++) {
ref = RTE_MAX(rte_rand() % REFCNT_MAX_REF, 1UL);
tref += ref;
if ((ref & 1) != 0) {
rte_pktmbuf_refcnt_update(m, ref);
while (ref-- != 0)
rte_ring_enqueue(refcnt_mbuf_ring, m);
} else {
while (ref-- != 0) {
rte_pktmbuf_refcnt_update(m, 1);
rte_ring_enqueue(refcnt_mbuf_ring, m);
}
}
rte_pktmbuf_free(m);
}
if (i != n)
rte_panic("(lcore=%u, iter=%u): was able to allocate only "
"%u from %u mbufs\n", lcore, iter, i, n);
/* wait till worker lcores will consume all mbufs */
while (!rte_ring_empty(refcnt_mbuf_ring))
;
/* check that all mbufs are back into mempool by now */
for (wn = 0; wn != REFCNT_MAX_TIMEOUT; wn++) {
if ((i = rte_mempool_avail_count(refcnt_pool)) == n) {
refcnt_lcore[lcore] += tref;
printf("%s(lcore=%u, iter=%u) completed, "
"%u references processed\n",
__func__, lcore, iter, tref);
return;
}
rte_delay_ms(100);
}
rte_panic("(lcore=%u, iter=%u): after %us only "
"%u of %u mbufs left free\n", lcore, iter, wn, i, n);
}
static int
test_refcnt_main(struct rte_mempool *refcnt_pool,
struct rte_ring *refcnt_mbuf_ring)
{
unsigned i, lcore;
lcore = rte_lcore_id();
printf("%s started at lcore %u\n", __func__, lcore);
for (i = 0; i != REFCNT_MAX_ITER; i++)
test_refcnt_iter(lcore, i, refcnt_pool, refcnt_mbuf_ring);
refcnt_stop_workers = 1;
rte_wmb();
printf("%s finished at lcore %u\n", __func__, lcore);
return 0;
}
#endif
static int
test_refcnt_mbuf(void)
{
#ifdef RTE_MBUF_REFCNT_ATOMIC
unsigned int main_lcore, worker, tref;
int ret = -1;
struct rte_mempool *refcnt_pool = NULL;
struct rte_ring *refcnt_mbuf_ring = NULL;
if (rte_lcore_count() < 2) {
printf("Not enough cores for test_refcnt_mbuf, expecting at least 2\n");
return TEST_SKIPPED;
}
printf("starting %s, at %u lcores\n", __func__, rte_lcore_count());
/* create refcnt pool & ring if they don't exist */
refcnt_pool = rte_pktmbuf_pool_create(MAKE_STRING(refcnt_pool),
REFCNT_MBUF_NUM, 0, 0, 0,
SOCKET_ID_ANY);
if (refcnt_pool == NULL) {
printf("%s: cannot allocate " MAKE_STRING(refcnt_pool) "\n",
__func__);
return -1;
}
refcnt_mbuf_ring = rte_ring_create("refcnt_mbuf_ring",
rte_align32pow2(REFCNT_RING_SIZE), SOCKET_ID_ANY,
RING_F_SP_ENQ);
if (refcnt_mbuf_ring == NULL) {
printf("%s: cannot allocate " MAKE_STRING(refcnt_mbuf_ring)
"\n", __func__);
goto err;
}
refcnt_stop_workers = 0;
memset(refcnt_lcore, 0, sizeof (refcnt_lcore));
rte_eal_mp_remote_launch(test_refcnt_worker, refcnt_mbuf_ring, SKIP_MAIN);
test_refcnt_main(refcnt_pool, refcnt_mbuf_ring);
rte_eal_mp_wait_lcore();
/* check that we processed all references */
tref = 0;
main_lcore = rte_get_main_lcore();
RTE_LCORE_FOREACH_WORKER(worker)
tref += refcnt_lcore[worker];
if (tref != refcnt_lcore[main_lcore])
rte_panic("referenced mbufs: %u, freed mbufs: %u\n",
tref, refcnt_lcore[main_lcore]);
rte_mempool_dump(stdout, refcnt_pool);
rte_ring_dump(stdout, refcnt_mbuf_ring);
ret = 0;
err:
rte_mempool_free(refcnt_pool);
rte_ring_free(refcnt_mbuf_ring);
return ret;
#else
return 0;
#endif
}
#include <unistd.h>
#include <sys/resource.h>
#include <sys/time.h>
#include <sys/wait.h>
/* use fork() to test mbuf errors panic */
static int
verify_mbuf_check_panics(struct rte_mbuf *buf)
{
int pid;
int status;
pid = fork();
if (pid == 0) {
struct rlimit rl;
/* No need to generate a coredump when panicking. */
rl.rlim_cur = rl.rlim_max = 0;
setrlimit(RLIMIT_CORE, &rl);
rte_mbuf_sanity_check(buf, 1); /* should panic */
exit(0); /* return normally if it doesn't panic */
} else if (pid < 0) {
printf("Fork Failed\n");
return -1;
}
wait(&status);
if(status == 0)
return -1;
return 0;
}
static int
test_failing_mbuf_sanity_check(struct rte_mempool *pktmbuf_pool)
{
struct rte_mbuf *buf;
struct rte_mbuf badbuf;
printf("Checking rte_mbuf_sanity_check for failure conditions\n");
/* get a good mbuf to use to make copies */
buf = rte_pktmbuf_alloc(pktmbuf_pool);
if (buf == NULL)
return -1;
printf("Checking good mbuf initially\n");
if (verify_mbuf_check_panics(buf) != -1)
return -1;
printf("Now checking for error conditions\n");
if (verify_mbuf_check_panics(NULL)) {
printf("Error with NULL mbuf test\n");
return -1;
}
badbuf = *buf;
badbuf.pool = NULL;
if (verify_mbuf_check_panics(&badbuf)) {
printf("Error with bad-pool mbuf test\n");
return -1;
}
badbuf = *buf;
badbuf.buf_iova = 0;
if (verify_mbuf_check_panics(&badbuf)) {
printf("Error with bad-physaddr mbuf test\n");
return -1;
}
badbuf = *buf;
badbuf.buf_addr = NULL;
if (verify_mbuf_check_panics(&badbuf)) {
printf("Error with bad-addr mbuf test\n");
return -1;
}
badbuf = *buf;
badbuf.refcnt = 0;
if (verify_mbuf_check_panics(&badbuf)) {
printf("Error with bad-refcnt(0) mbuf test\n");
return -1;
}
badbuf = *buf;
badbuf.refcnt = UINT16_MAX;
if (verify_mbuf_check_panics(&badbuf)) {
printf("Error with bad-refcnt(MAX) mbuf test\n");
return -1;
}
return 0;
}
static int
test_mbuf_linearize(struct rte_mempool *pktmbuf_pool, int pkt_len,
int nb_segs)
{
struct rte_mbuf *m = NULL, *mbuf = NULL;
uint8_t *data;
int data_len = 0;
int remain;
int seg, seg_len;
int i;
if (pkt_len < 1) {
printf("Packet size must be 1 or more (is %d)\n", pkt_len);
return -1;
}
if (nb_segs < 1) {
printf("Number of segments must be 1 or more (is %d)\n",
nb_segs);
return -1;
}
seg_len = pkt_len / nb_segs;
if (seg_len == 0)
seg_len = 1;
remain = pkt_len;
/* Create chained mbuf_src and fill it generated data */
for (seg = 0; remain > 0; seg++) {
m = rte_pktmbuf_alloc(pktmbuf_pool);
if (m == NULL) {
printf("Cannot create segment for source mbuf");
goto fail;
}
/* Make sure if tailroom is zeroed */
memset(rte_pktmbuf_mtod(m, uint8_t *), 0,
rte_pktmbuf_tailroom(m));
data_len = remain;
if (data_len > seg_len)
data_len = seg_len;
data = (uint8_t *)rte_pktmbuf_append(m, data_len);
if (data == NULL) {
printf("Cannot append %d bytes to the mbuf\n",
data_len);
goto fail;
}
for (i = 0; i < data_len; i++)
data[i] = (seg * seg_len + i) % 0x0ff;
if (seg == 0)
mbuf = m;
else
rte_pktmbuf_chain(mbuf, m);
remain -= data_len;
}
/* Create destination buffer to store coalesced data */
if (rte_pktmbuf_linearize(mbuf)) {
printf("Mbuf linearization failed\n");
goto fail;
}
if (!rte_pktmbuf_is_contiguous(mbuf)) {
printf("Source buffer should be contiguous after "
"linearization\n");
goto fail;
}
data = rte_pktmbuf_mtod(mbuf, uint8_t *);
for (i = 0; i < pkt_len; i++)
if (data[i] != (i % 0x0ff)) {
printf("Incorrect data in linearized mbuf\n");
goto fail;
}
rte_pktmbuf_free(mbuf);
return 0;
fail:
if (mbuf)
rte_pktmbuf_free(mbuf);
return -1;
}
static int
test_mbuf_linearize_check(struct rte_mempool *pktmbuf_pool)
{
struct test_mbuf_array {
int size;
int nb_segs;
} mbuf_array[] = {
{ 128, 1 },
{ 64, 64 },
{ 512, 10 },
{ 250, 11 },
{ 123, 8 },
};
unsigned int i;
printf("Test mbuf linearize API\n");
for (i = 0; i < RTE_DIM(mbuf_array); i++)
if (test_mbuf_linearize(pktmbuf_pool, mbuf_array[i].size,
mbuf_array[i].nb_segs)) {
printf("Test failed for %d, %d\n", mbuf_array[i].size,
mbuf_array[i].nb_segs);
return -1;
}
return 0;
}
/*
* Helper function for test_tx_ofload
*/
static inline void
set_tx_offload(struct rte_mbuf *mb, uint64_t il2, uint64_t il3, uint64_t il4,
uint64_t tso, uint64_t ol3, uint64_t ol2)
{
mb->l2_len = il2;
mb->l3_len = il3;
mb->l4_len = il4;
mb->tso_segsz = tso;
mb->outer_l3_len = ol3;
mb->outer_l2_len = ol2;
}
static int
test_tx_offload(void)
{
struct rte_mbuf *mb;
uint64_t tm, v1, v2;
size_t sz;
uint32_t i;
static volatile struct {
uint16_t l2;
uint16_t l3;
uint16_t l4;
uint16_t tso;
} txof;
const uint32_t num = 0x10000;
txof.l2 = rte_rand() % (1 << RTE_MBUF_L2_LEN_BITS);
txof.l3 = rte_rand() % (1 << RTE_MBUF_L3_LEN_BITS);
txof.l4 = rte_rand() % (1 << RTE_MBUF_L4_LEN_BITS);
txof.tso = rte_rand() % (1 << RTE_MBUF_TSO_SEGSZ_BITS);
printf("%s started, tx_offload = {\n"
"\tl2_len=%#hx,\n"
"\tl3_len=%#hx,\n"
"\tl4_len=%#hx,\n"
"\ttso_segsz=%#hx,\n"
"\touter_l3_len=%#x,\n"
"\touter_l2_len=%#x,\n"
"};\n",
__func__,
txof.l2, txof.l3, txof.l4, txof.tso, txof.l3, txof.l2);
sz = sizeof(*mb) * num;
mb = rte_zmalloc(NULL, sz, RTE_CACHE_LINE_SIZE);
if (mb == NULL) {
printf("%s failed, out of memory\n", __func__);
return -ENOMEM;
}
memset(mb, 0, sz);
tm = rte_rdtsc_precise();
for (i = 0; i != num; i++)
set_tx_offload(mb + i, txof.l2, txof.l3, txof.l4,
txof.tso, txof.l3, txof.l2);
tm = rte_rdtsc_precise() - tm;
printf("%s set tx_offload by bit-fields: %u iterations, %"
PRIu64 " cycles, %#Lf cycles/iter\n",
__func__, num, tm, (long double)tm / num);
v1 = mb[rte_rand() % num].tx_offload;
memset(mb, 0, sz);
tm = rte_rdtsc_precise();
for (i = 0; i != num; i++)
mb[i].tx_offload = rte_mbuf_tx_offload(txof.l2, txof.l3,
txof.l4, txof.tso, txof.l3, txof.l2, 0);
tm = rte_rdtsc_precise() - tm;
printf("%s set raw tx_offload: %u iterations, %"
PRIu64 " cycles, %#Lf cycles/iter\n",
__func__, num, tm, (long double)tm / num);
v2 = mb[rte_rand() % num].tx_offload;
rte_free(mb);
printf("%s finished\n"
"expected tx_offload value: 0x%" PRIx64 ";\n"
"rte_mbuf_tx_offload value: 0x%" PRIx64 ";\n",
__func__, v1, v2);
return (v1 == v2) ? 0 : -EINVAL;
}
static int
test_get_rx_ol_flag_list(void)
{
int len = 6, ret = 0;
char buf[256] = "";
int buflen = 0;
/* Test case to check with null buffer */
ret = rte_get_rx_ol_flag_list(0, NULL, 0);
if (ret != -1)
GOTO_FAIL("%s expected: -1, received = %d\n", __func__, ret);
/* Test case to check with zero buffer len */
ret = rte_get_rx_ol_flag_list(RTE_MBUF_F_RX_L4_CKSUM_MASK, buf, 0);
if (ret != -1)
GOTO_FAIL("%s expected: -1, received = %d\n", __func__, ret);
buflen = strlen(buf);
if (buflen != 0)
GOTO_FAIL("%s buffer should be empty, received = %d\n",
__func__, buflen);
/* Test case to check with reduced buffer len */
ret = rte_get_rx_ol_flag_list(0, buf, len);
if (ret != -1)
GOTO_FAIL("%s expected: -1, received = %d\n", __func__, ret);
buflen = strlen(buf);
if (buflen != (len - 1))
GOTO_FAIL("%s invalid buffer length retrieved, expected: %d,"
"received = %d\n", __func__,
(len - 1), buflen);
/* Test case to check with zero mask value */
ret = rte_get_rx_ol_flag_list(0, buf, sizeof(buf));
if (ret != 0)
GOTO_FAIL("%s expected: 0, received = %d\n", __func__, ret);
buflen = strlen(buf);
if (buflen == 0)
GOTO_FAIL("%s expected: %s, received length = 0\n", __func__,
"non-zero, buffer should not be empty");
/* Test case to check with valid mask value */
ret = rte_get_rx_ol_flag_list(RTE_MBUF_F_RX_SEC_OFFLOAD, buf,
sizeof(buf));
if (ret != 0)
GOTO_FAIL("%s expected: 0, received = %d\n", __func__, ret);
buflen = strlen(buf);
if (buflen == 0)
GOTO_FAIL("%s expected: %s, received length = 0\n", __func__,
"non-zero, buffer should not be empty");
return 0;
fail:
return -1;
}
static int
test_get_tx_ol_flag_list(void)
{
int len = 6, ret = 0;
char buf[256] = "";
int buflen = 0;
/* Test case to check with null buffer */
ret = rte_get_tx_ol_flag_list(0, NULL, 0);
if (ret != -1)
GOTO_FAIL("%s expected: -1, received = %d\n", __func__, ret);
/* Test case to check with zero buffer len */
ret = rte_get_tx_ol_flag_list(RTE_MBUF_F_TX_IP_CKSUM, buf, 0);
if (ret != -1)
GOTO_FAIL("%s expected: -1, received = %d\n", __func__, ret);
buflen = strlen(buf);
if (buflen != 0) {
GOTO_FAIL("%s buffer should be empty, received = %d\n",
__func__, buflen);
}
/* Test case to check with reduced buffer len */
ret = rte_get_tx_ol_flag_list(0, buf, len);
if (ret != -1)
GOTO_FAIL("%s expected: -1, received = %d\n", __func__, ret);
buflen = strlen(buf);
if (buflen != (len - 1))
GOTO_FAIL("%s invalid buffer length retrieved, expected: %d,"
"received = %d\n", __func__,
(len - 1), buflen);
/* Test case to check with zero mask value */
ret = rte_get_tx_ol_flag_list(0, buf, sizeof(buf));
if (ret != 0)
GOTO_FAIL("%s expected: 0, received = %d\n", __func__, ret);
buflen = strlen(buf);
if (buflen == 0)
GOTO_FAIL("%s expected: %s, received length = 0\n", __func__,
"non-zero, buffer should not be empty");
/* Test case to check with valid mask value */
ret = rte_get_tx_ol_flag_list(RTE_MBUF_F_TX_UDP_CKSUM, buf,
sizeof(buf));
if (ret != 0)
GOTO_FAIL("%s expected: 0, received = %d\n", __func__, ret);
buflen = strlen(buf);
if (buflen == 0)
GOTO_FAIL("%s expected: %s, received length = 0\n", __func__,
"non-zero, buffer should not be empty");
return 0;
fail:
return -1;
}
struct flag_name {
uint64_t flag;
const char *name;
};
static int
test_get_rx_ol_flag_name(void)
{
uint16_t i;
const char *flag_str = NULL;
const struct flag_name rx_flags[] = {
VAL_NAME(RTE_MBUF_F_RX_VLAN),
VAL_NAME(RTE_MBUF_F_RX_RSS_HASH),
VAL_NAME(RTE_MBUF_F_RX_FDIR),
VAL_NAME(RTE_MBUF_F_RX_L4_CKSUM_BAD),
VAL_NAME(RTE_MBUF_F_RX_L4_CKSUM_GOOD),
VAL_NAME(RTE_MBUF_F_RX_L4_CKSUM_NONE),
VAL_NAME(RTE_MBUF_F_RX_IP_CKSUM_BAD),
VAL_NAME(RTE_MBUF_F_RX_IP_CKSUM_GOOD),
VAL_NAME(RTE_MBUF_F_RX_IP_CKSUM_NONE),
VAL_NAME(RTE_MBUF_F_RX_OUTER_IP_CKSUM_BAD),
VAL_NAME(RTE_MBUF_F_RX_VLAN_STRIPPED),
VAL_NAME(RTE_MBUF_F_RX_IEEE1588_PTP),
VAL_NAME(RTE_MBUF_F_RX_IEEE1588_TMST),
VAL_NAME(RTE_MBUF_F_RX_FDIR_ID),
VAL_NAME(RTE_MBUF_F_RX_FDIR_FLX),
VAL_NAME(RTE_MBUF_F_RX_QINQ_STRIPPED),
VAL_NAME(RTE_MBUF_F_RX_LRO),
VAL_NAME(RTE_MBUF_F_RX_SEC_OFFLOAD),
VAL_NAME(RTE_MBUF_F_RX_SEC_OFFLOAD_FAILED),
VAL_NAME(RTE_MBUF_F_RX_OUTER_L4_CKSUM_BAD),
VAL_NAME(RTE_MBUF_F_RX_OUTER_L4_CKSUM_GOOD),
VAL_NAME(RTE_MBUF_F_RX_OUTER_L4_CKSUM_INVALID),
};
/* Test case to check with valid flag */
for (i = 0; i < RTE_DIM(rx_flags); i++) {
flag_str = rte_get_rx_ol_flag_name(rx_flags[i].flag);
if (flag_str == NULL)
GOTO_FAIL("%s: Expected flagname = %s; received null\n",
__func__, rx_flags[i].name);
if (strcmp(flag_str, rx_flags[i].name) != 0)
GOTO_FAIL("%s: Expected flagname = %s; received = %s\n",
__func__, rx_flags[i].name, flag_str);
}
/* Test case to check with invalid flag */
flag_str = rte_get_rx_ol_flag_name(0);
if (flag_str != NULL) {
GOTO_FAIL("%s: Expected flag name = null; received = %s\n",
__func__, flag_str);
}
return 0;
fail:
return -1;
}
static int
test_get_tx_ol_flag_name(void)
{
uint16_t i;
const char *flag_str = NULL;
const struct flag_name tx_flags[] = {
VAL_NAME(RTE_MBUF_F_TX_VLAN),
VAL_NAME(RTE_MBUF_F_TX_IP_CKSUM),
VAL_NAME(RTE_MBUF_F_TX_TCP_CKSUM),
VAL_NAME(RTE_MBUF_F_TX_SCTP_CKSUM),
VAL_NAME(RTE_MBUF_F_TX_UDP_CKSUM),
VAL_NAME(RTE_MBUF_F_TX_IEEE1588_TMST),
VAL_NAME(RTE_MBUF_F_TX_TCP_SEG),
VAL_NAME(RTE_MBUF_F_TX_IPV4),
VAL_NAME(RTE_MBUF_F_TX_IPV6),
VAL_NAME(RTE_MBUF_F_TX_OUTER_IP_CKSUM),
VAL_NAME(RTE_MBUF_F_TX_OUTER_IPV4),
VAL_NAME(RTE_MBUF_F_TX_OUTER_IPV6),
VAL_NAME(RTE_MBUF_F_TX_TUNNEL_VXLAN),
VAL_NAME(RTE_MBUF_F_TX_TUNNEL_GRE),
VAL_NAME(RTE_MBUF_F_TX_TUNNEL_IPIP),
VAL_NAME(RTE_MBUF_F_TX_TUNNEL_GENEVE),
VAL_NAME(RTE_MBUF_F_TX_TUNNEL_MPLSINUDP),
VAL_NAME(RTE_MBUF_F_TX_TUNNEL_VXLAN_GPE),
VAL_NAME(RTE_MBUF_F_TX_TUNNEL_IP),
VAL_NAME(RTE_MBUF_F_TX_TUNNEL_UDP),
VAL_NAME(RTE_MBUF_F_TX_QINQ),
VAL_NAME(RTE_MBUF_F_TX_MACSEC),
VAL_NAME(RTE_MBUF_F_TX_SEC_OFFLOAD),
VAL_NAME(RTE_MBUF_F_TX_UDP_SEG),
VAL_NAME(RTE_MBUF_F_TX_OUTER_UDP_CKSUM),
};
/* Test case to check with valid flag */
for (i = 0; i < RTE_DIM(tx_flags); i++) {
flag_str = rte_get_tx_ol_flag_name(tx_flags[i].flag);
if (flag_str == NULL)
GOTO_FAIL("%s: Expected flagname = %s; received null\n",
__func__, tx_flags[i].name);
if (strcmp(flag_str, tx_flags[i].name) != 0)
GOTO_FAIL("%s: Expected flagname = %s; received = %s\n",
__func__, tx_flags[i].name, flag_str);
}
/* Test case to check with invalid flag */
flag_str = rte_get_tx_ol_flag_name(0);
if (flag_str != NULL) {
GOTO_FAIL("%s: Expected flag name = null; received = %s\n",
__func__, flag_str);
}
return 0;
fail:
return -1;
}
static int
test_mbuf_validate_tx_offload(const char *test_name,
struct rte_mempool *pktmbuf_pool,
uint64_t ol_flags,
uint16_t segsize,
int expected_retval)
{
struct rte_mbuf *m = NULL;
int ret = 0;
/* alloc a mbuf and do sanity check */
m = rte_pktmbuf_alloc(pktmbuf_pool);
if (m == NULL)
GOTO_FAIL("%s: mbuf allocation failed!\n", __func__);
if (rte_pktmbuf_pkt_len(m) != 0)
GOTO_FAIL("%s: Bad packet length\n", __func__);
rte_mbuf_sanity_check(m, 0);
m->ol_flags = ol_flags;
m->tso_segsz = segsize;
ret = rte_validate_tx_offload(m);
if (ret != expected_retval)
GOTO_FAIL("%s(%s): expected ret val: %d; received: %d\n",
__func__, test_name, expected_retval, ret);
rte_pktmbuf_free(m);
m = NULL;
return 0;
fail:
if (m) {
rte_pktmbuf_free(m);
m = NULL;
}
return -1;
}
static int
test_mbuf_validate_tx_offload_one(struct rte_mempool *pktmbuf_pool)
{
/* test to validate tx offload flags */
uint64_t ol_flags = 0;
/* test to validate if IP checksum is counted only for IPV4 packet */
/* set both IP checksum and IPV6 flags */
ol_flags |= RTE_MBUF_F_TX_IP_CKSUM;
ol_flags |= RTE_MBUF_F_TX_IPV6;
if (test_mbuf_validate_tx_offload("MBUF_TEST_IP_CKSUM_IPV6_SET",
pktmbuf_pool,
ol_flags, 0, -EINVAL) < 0)
GOTO_FAIL("%s failed: IP cksum is set incorrect.\n", __func__);
/* resetting ol_flags for next testcase */
ol_flags = 0;
/* test to validate if IP type is set when required */
ol_flags |= RTE_MBUF_F_TX_L4_MASK;
if (test_mbuf_validate_tx_offload("MBUF_TEST_IP_TYPE_NOT_SET",
pktmbuf_pool,
ol_flags, 0, -EINVAL) < 0)
GOTO_FAIL("%s failed: IP type is not set.\n", __func__);
/* test if IP type is set when TCP SEG is on */
ol_flags |= RTE_MBUF_F_TX_TCP_SEG;
if (test_mbuf_validate_tx_offload("MBUF_TEST_IP_TYPE_NOT_SET",
pktmbuf_pool,
ol_flags, 0, -EINVAL) < 0)
GOTO_FAIL("%s failed: IP type is not set.\n", __func__);
ol_flags = 0;
/* test to confirm IP type (IPV4/IPV6) is set */
ol_flags = RTE_MBUF_F_TX_L4_MASK;
ol_flags |= RTE_MBUF_F_TX_IPV6;
if (test_mbuf_validate_tx_offload("MBUF_TEST_IP_TYPE_SET",
pktmbuf_pool,
ol_flags, 0, 0) < 0)
GOTO_FAIL("%s failed: tx offload flag error.\n", __func__);
ol_flags = 0;
/* test to check TSO segment size is non-zero */
ol_flags |= RTE_MBUF_F_TX_IPV4;
ol_flags |= RTE_MBUF_F_TX_TCP_SEG;
/* set 0 tso segment size */
if (test_mbuf_validate_tx_offload("MBUF_TEST_NULL_TSO_SEGSZ",
pktmbuf_pool,
ol_flags, 0, -EINVAL) < 0)
GOTO_FAIL("%s failed: tso segment size is null.\n", __func__);
/* retain IPV4 and RTE_MBUF_F_TX_TCP_SEG mask */
/* set valid tso segment size but IP CKSUM not set */
if (test_mbuf_validate_tx_offload("MBUF_TEST_TSO_IP_CKSUM_NOT_SET",
pktmbuf_pool,
ol_flags, 512, -EINVAL) < 0)
GOTO_FAIL("%s failed: IP CKSUM is not set.\n", __func__);
/* test to validate if IP checksum is set for TSO capability */
/* retain IPV4, TCP_SEG, tso_seg size */
ol_flags |= RTE_MBUF_F_TX_IP_CKSUM;
if (test_mbuf_validate_tx_offload("MBUF_TEST_TSO_IP_CKSUM_SET",
pktmbuf_pool,
ol_flags, 512, 0) < 0)
GOTO_FAIL("%s failed: tx offload flag error.\n", __func__);
/* test to confirm TSO for IPV6 type */
ol_flags = 0;
ol_flags |= RTE_MBUF_F_TX_IPV6;
ol_flags |= RTE_MBUF_F_TX_TCP_SEG;
if (test_mbuf_validate_tx_offload("MBUF_TEST_TSO_IPV6_SET",
pktmbuf_pool,
ol_flags, 512, 0) < 0)
GOTO_FAIL("%s failed: TSO req not met.\n", __func__);
ol_flags = 0;
/* test if outer IP checksum set for non outer IPv4 packet */
ol_flags |= RTE_MBUF_F_TX_IPV6;
ol_flags |= RTE_MBUF_F_TX_OUTER_IP_CKSUM;
if (test_mbuf_validate_tx_offload("MBUF_TEST_OUTER_IPV4_NOT_SET",
pktmbuf_pool,
ol_flags, 512, -EINVAL) < 0)
GOTO_FAIL("%s failed: Outer IP cksum set.\n", __func__);
ol_flags = 0;
/* test to confirm outer IP checksum is set for outer IPV4 packet */
ol_flags |= RTE_MBUF_F_TX_OUTER_IP_CKSUM;
ol_flags |= RTE_MBUF_F_TX_OUTER_IPV4;
if (test_mbuf_validate_tx_offload("MBUF_TEST_OUTER_IPV4_SET",
pktmbuf_pool,
ol_flags, 512, 0) < 0)
GOTO_FAIL("%s failed: tx offload flag error.\n", __func__);
ol_flags = 0;
/* test to confirm if packets with no TX_OFFLOAD_MASK are skipped */
if (test_mbuf_validate_tx_offload("MBUF_TEST_OL_MASK_NOT_SET",
pktmbuf_pool,
ol_flags, 512, 0) < 0)
GOTO_FAIL("%s failed: tx offload flag error.\n", __func__);
return 0;
fail:
return -1;
}
/*
* Test for allocating a bulk of mbufs
* define an array with positive sizes for mbufs allocations.
*/
static int
test_pktmbuf_alloc_bulk(struct rte_mempool *pktmbuf_pool)
{
int ret = 0;
unsigned int idx, loop;
unsigned int alloc_counts[] = {
0,
MEMPOOL_CACHE_SIZE - 1,
MEMPOOL_CACHE_SIZE + 1,
MEMPOOL_CACHE_SIZE * 1.5,
MEMPOOL_CACHE_SIZE * 2,
MEMPOOL_CACHE_SIZE * 2 - 1,
MEMPOOL_CACHE_SIZE * 2 + 1,
MEMPOOL_CACHE_SIZE,
};
/* allocate a large array of mbuf pointers */
struct rte_mbuf *mbufs[NB_MBUF] = { 0 };
for (idx = 0; idx < RTE_DIM(alloc_counts); idx++) {
ret = rte_pktmbuf_alloc_bulk(pktmbuf_pool, mbufs,
alloc_counts[idx]);
if (ret == 0) {
for (loop = 0; loop < alloc_counts[idx] &&
mbufs[loop] != NULL; loop++)
rte_pktmbuf_free(mbufs[loop]);
} else if (ret != 0) {
printf("%s: Bulk alloc failed count(%u); ret val(%d)\n",
__func__, alloc_counts[idx], ret);
return -1;
}
}
return 0;
}
/*
* Negative testing for allocating a bulk of mbufs
*/
static int
test_neg_pktmbuf_alloc_bulk(struct rte_mempool *pktmbuf_pool)
{
int ret = 0;
unsigned int idx, loop;
unsigned int neg_alloc_counts[] = {
MEMPOOL_CACHE_SIZE - NB_MBUF,
NB_MBUF + 1,
NB_MBUF * 8,
UINT_MAX
};
struct rte_mbuf *mbufs[NB_MBUF * 8] = { 0 };
for (idx = 0; idx < RTE_DIM(neg_alloc_counts); idx++) {
ret = rte_pktmbuf_alloc_bulk(pktmbuf_pool, mbufs,
neg_alloc_counts[idx]);
if (ret == 0) {
printf("%s: Bulk alloc must fail! count(%u); ret(%d)\n",
__func__, neg_alloc_counts[idx], ret);
for (loop = 0; loop < neg_alloc_counts[idx] &&
mbufs[loop] != NULL; loop++)
rte_pktmbuf_free(mbufs[loop]);
return -1;
}
}
return 0;
}
/*
* Test to read mbuf packet using rte_pktmbuf_read
*/
static int
test_pktmbuf_read(struct rte_mempool *pktmbuf_pool)
{
struct rte_mbuf *m = NULL;
char *data = NULL;
const char *data_copy = NULL;
int off;
/* alloc a mbuf */
m = rte_pktmbuf_alloc(pktmbuf_pool);
if (m == NULL)
GOTO_FAIL("%s: mbuf allocation failed!\n", __func__);
if (rte_pktmbuf_pkt_len(m) != 0)
GOTO_FAIL("%s: Bad packet length\n", __func__);
rte_mbuf_sanity_check(m, 0);
data = rte_pktmbuf_append(m, MBUF_TEST_DATA_LEN2);
if (data == NULL)
GOTO_FAIL("%s: Cannot append data\n", __func__);
if (rte_pktmbuf_pkt_len(m) != MBUF_TEST_DATA_LEN2)
GOTO_FAIL("%s: Bad packet length\n", __func__);
memset(data, 0xfe, MBUF_TEST_DATA_LEN2);
/* read the data from mbuf */
data_copy = rte_pktmbuf_read(m, 0, MBUF_TEST_DATA_LEN2, NULL);
if (data_copy == NULL)
GOTO_FAIL("%s: Error in reading data!\n", __func__);
for (off = 0; off < MBUF_TEST_DATA_LEN2; off++) {
if (data_copy[off] != (char)0xfe)
GOTO_FAIL("Data corrupted at offset %u", off);
}
rte_pktmbuf_free(m);
m = NULL;
return 0;
fail:
if (m) {
rte_pktmbuf_free(m);
m = NULL;
}
return -1;
}
/*
* Test to read mbuf packet data from offset
*/
static int
test_pktmbuf_read_from_offset(struct rte_mempool *pktmbuf_pool)
{
struct rte_mbuf *m = NULL;
struct ether_hdr *hdr = NULL;
char *data = NULL;
const char *data_copy = NULL;
unsigned int off;
unsigned int hdr_len = sizeof(struct rte_ether_hdr);
/* alloc a mbuf */
m = rte_pktmbuf_alloc(pktmbuf_pool);
if (m == NULL)
GOTO_FAIL("%s: mbuf allocation failed!\n", __func__);
if (rte_pktmbuf_pkt_len(m) != 0)
GOTO_FAIL("%s: Bad packet length\n", __func__);
rte_mbuf_sanity_check(m, 0);
/* prepend an ethernet header */
hdr = (struct ether_hdr *)rte_pktmbuf_prepend(m, hdr_len);
if (hdr == NULL)
GOTO_FAIL("%s: Cannot prepend header\n", __func__);
if (rte_pktmbuf_pkt_len(m) != hdr_len)
GOTO_FAIL("%s: Bad pkt length", __func__);
if (rte_pktmbuf_data_len(m) != hdr_len)
GOTO_FAIL("%s: Bad data length", __func__);
memset(hdr, 0xde, hdr_len);
/* read mbuf header info from 0 offset */
data_copy = rte_pktmbuf_read(m, 0, hdr_len, NULL);
if (data_copy == NULL)
GOTO_FAIL("%s: Error in reading header!\n", __func__);
for (off = 0; off < hdr_len; off++) {
if (data_copy[off] != (char)0xde)
GOTO_FAIL("Header info corrupted at offset %u", off);
}
/* append sample data after ethernet header */
data = rte_pktmbuf_append(m, MBUF_TEST_DATA_LEN2);
if (data == NULL)
GOTO_FAIL("%s: Cannot append data\n", __func__);
if (rte_pktmbuf_pkt_len(m) != hdr_len + MBUF_TEST_DATA_LEN2)
GOTO_FAIL("%s: Bad packet length\n", __func__);
if (rte_pktmbuf_data_len(m) != hdr_len + MBUF_TEST_DATA_LEN2)
GOTO_FAIL("%s: Bad data length\n", __func__);
memset(data, 0xcc, MBUF_TEST_DATA_LEN2);
/* read mbuf data after header info */
data_copy = rte_pktmbuf_read(m, hdr_len, MBUF_TEST_DATA_LEN2, NULL);
if (data_copy == NULL)
GOTO_FAIL("%s: Error in reading header data!\n", __func__);
for (off = 0; off < MBUF_TEST_DATA_LEN2; off++) {
if (data_copy[off] != (char)0xcc)
GOTO_FAIL("Data corrupted at offset %u", off);
}
/* partial reading of mbuf data */
data_copy = rte_pktmbuf_read(m, hdr_len + 5, MBUF_TEST_DATA_LEN2 - 5,
NULL);
if (data_copy == NULL)
GOTO_FAIL("%s: Error in reading packet data!\n", __func__);
if (strlen(data_copy) != MBUF_TEST_DATA_LEN2 - 5)
GOTO_FAIL("%s: Incorrect data length!\n", __func__);
for (off = 0; off < MBUF_TEST_DATA_LEN2 - 5; off++) {
if (data_copy[off] != (char)0xcc)
GOTO_FAIL("Data corrupted at offset %u", off);
}
/* read length greater than mbuf data_len */
if (rte_pktmbuf_read(m, hdr_len, rte_pktmbuf_data_len(m) + 1,
NULL) != NULL)
GOTO_FAIL("%s: Requested len is larger than mbuf data len!\n",
__func__);
/* read length greater than mbuf pkt_len */
if (rte_pktmbuf_read(m, hdr_len, rte_pktmbuf_pkt_len(m) + 1,
NULL) != NULL)
GOTO_FAIL("%s: Requested len is larger than mbuf pkt len!\n",
__func__);
/* read data of zero len from valid offset */
data_copy = rte_pktmbuf_read(m, hdr_len, 0, NULL);
if (data_copy == NULL)
GOTO_FAIL("%s: Error in reading packet data!\n", __func__);
if (strlen(data_copy) != MBUF_TEST_DATA_LEN2)
GOTO_FAIL("%s: Corrupted data content!\n", __func__);
for (off = 0; off < MBUF_TEST_DATA_LEN2; off++) {
if (data_copy[off] != (char)0xcc)
GOTO_FAIL("Data corrupted at offset %u", off);
}
/* read data of zero length from zero offset */
data_copy = rte_pktmbuf_read(m, 0, 0, NULL);
if (data_copy == NULL)
GOTO_FAIL("%s: Error in reading packet data!\n", __func__);
/* check if the received address is the beginning of header info */
if (hdr != (const struct ether_hdr *)data_copy)
GOTO_FAIL("%s: Corrupted data address!\n", __func__);
/* read data of max length from valid offset */
data_copy = rte_pktmbuf_read(m, hdr_len, UINT_MAX, NULL);
if (data_copy == NULL)
GOTO_FAIL("%s: Error in reading packet data!\n", __func__);
/* check if the received address is the beginning of data segment */
if (data_copy != data)
GOTO_FAIL("%s: Corrupted data address!\n", __func__);
/* try to read from mbuf with max size offset */
data_copy = rte_pktmbuf_read(m, UINT_MAX, 0, NULL);
if (data_copy != NULL)
GOTO_FAIL("%s: Error in reading packet data!\n", __func__);
/* try to read from mbuf with max size offset and len */
data_copy = rte_pktmbuf_read(m, UINT_MAX, UINT_MAX, NULL);
if (data_copy != NULL)
GOTO_FAIL("%s: Error in reading packet data!\n", __func__);
rte_pktmbuf_dump(stdout, m, rte_pktmbuf_pkt_len(m));
rte_pktmbuf_free(m);
m = NULL;
return 0;
fail:
if (m) {
rte_pktmbuf_free(m);
m = NULL;
}
return -1;
}
struct test_case {
unsigned int seg_count;
unsigned int flags;
uint32_t read_off;
uint32_t read_len;
unsigned int seg_lengths[MBUF_MAX_SEG];
};
/* create a mbuf with different sized segments
* and fill with data [0x00 0x01 0x02 ...]
*/
static struct rte_mbuf *
create_packet(struct rte_mempool *pktmbuf_pool,
struct test_case *test_data)
{
uint16_t i, ret, seg, seg_len = 0;
uint32_t last_index = 0;
unsigned int seg_lengths[MBUF_MAX_SEG];
unsigned int hdr_len;
struct rte_mbuf *pkt = NULL;
struct rte_mbuf *pkt_seg = NULL;
char *hdr = NULL;
char *data = NULL;
memcpy(seg_lengths, test_data->seg_lengths,
sizeof(unsigned int)*test_data->seg_count);
for (seg = 0; seg < test_data->seg_count; seg++) {
hdr_len = 0;
seg_len = seg_lengths[seg];
pkt_seg = rte_pktmbuf_alloc(pktmbuf_pool);
if (pkt_seg == NULL)
GOTO_FAIL("%s: mbuf allocation failed!\n", __func__);
if (rte_pktmbuf_pkt_len(pkt_seg) != 0)
GOTO_FAIL("%s: Bad packet length\n", __func__);
rte_mbuf_sanity_check(pkt_seg, 0);
/* Add header only for the first segment */
if (test_data->flags == MBUF_HEADER && seg == 0) {
hdr_len = sizeof(struct rte_ether_hdr);
/* prepend a header and fill with dummy data */
hdr = (char *)rte_pktmbuf_prepend(pkt_seg, hdr_len);
if (hdr == NULL)
GOTO_FAIL("%s: Cannot prepend header\n",
__func__);
if (rte_pktmbuf_pkt_len(pkt_seg) != hdr_len)
GOTO_FAIL("%s: Bad pkt length", __func__);
if (rte_pktmbuf_data_len(pkt_seg) != hdr_len)
GOTO_FAIL("%s: Bad data length", __func__);
for (i = 0; i < hdr_len; i++)
hdr[i] = (last_index + i) % 0xffff;
last_index += hdr_len;
}
/* skip appending segment with 0 length */
if (seg_len == 0)
continue;
data = rte_pktmbuf_append(pkt_seg, seg_len);
if (data == NULL)
GOTO_FAIL("%s: Cannot append data segment\n", __func__);
if (rte_pktmbuf_pkt_len(pkt_seg) != hdr_len + seg_len)
GOTO_FAIL("%s: Bad packet segment length: %d\n",
__func__, rte_pktmbuf_pkt_len(pkt_seg));
if (rte_pktmbuf_data_len(pkt_seg) != hdr_len + seg_len)
GOTO_FAIL("%s: Bad data length\n", __func__);
for (i = 0; i < seg_len; i++)
data[i] = (last_index + i) % 0xffff;
/* to fill continuous data from one seg to another */
last_index += i;
/* create chained mbufs */
if (seg == 0)
pkt = pkt_seg;
else {
ret = rte_pktmbuf_chain(pkt, pkt_seg);
if (ret != 0)
GOTO_FAIL("%s:FAIL: Chained mbuf creation %d\n",
__func__, ret);
}
pkt_seg = pkt_seg->next;
}
return pkt;
fail:
if (pkt != NULL) {
rte_pktmbuf_free(pkt);
pkt = NULL;
}
if (pkt_seg != NULL) {
rte_pktmbuf_free(pkt_seg);
pkt_seg = NULL;
}
return NULL;
}
static int
test_pktmbuf_read_from_chain(struct rte_mempool *pktmbuf_pool)
{
struct rte_mbuf *m;
struct test_case test_cases[] = {
{
.seg_lengths = { 100, 100, 100 },
.seg_count = 3,
.flags = MBUF_NO_HEADER,
.read_off = 0,
.read_len = 300
},
{
.seg_lengths = { 100, 125, 150 },
.seg_count = 3,
.flags = MBUF_NO_HEADER,
.read_off = 99,
.read_len = 201
},
{
.seg_lengths = { 100, 100 },
.seg_count = 2,
.flags = MBUF_NO_HEADER,
.read_off = 0,
.read_len = 100
},
{
.seg_lengths = { 100, 200 },
.seg_count = 2,
.flags = MBUF_HEADER,
.read_off = sizeof(struct rte_ether_hdr),
.read_len = 150
},
{
.seg_lengths = { 1000, 100 },
.seg_count = 2,
.flags = MBUF_NO_HEADER,
.read_off = 0,
.read_len = 1000
},
{
.seg_lengths = { 1024, 0, 100 },
.seg_count = 3,
.flags = MBUF_NO_HEADER,
.read_off = 100,
.read_len = 1001
},
{
.seg_lengths = { 1000, 1, 1000 },
.seg_count = 3,
.flags = MBUF_NO_HEADER,
.read_off = 1000,
.read_len = 2
},
{
.seg_lengths = { MBUF_TEST_DATA_LEN,
MBUF_TEST_DATA_LEN2,
MBUF_TEST_DATA_LEN3, 800, 10 },
.seg_count = 5,
.flags = MBUF_NEG_TEST_READ,
.read_off = 1000,
.read_len = MBUF_DATA_SIZE
},
};
uint32_t i, pos;
const char *data_copy = NULL;
char data_buf[MBUF_DATA_SIZE];
memset(data_buf, 0, MBUF_DATA_SIZE);
for (i = 0; i < RTE_DIM(test_cases); i++) {
m = create_packet(pktmbuf_pool, &test_cases[i]);
if (m == NULL)
GOTO_FAIL("%s: mbuf allocation failed!\n", __func__);
data_copy = rte_pktmbuf_read(m, test_cases[i].read_off,
test_cases[i].read_len, data_buf);
if (test_cases[i].flags == MBUF_NEG_TEST_READ) {
if (data_copy != NULL)
GOTO_FAIL("%s: mbuf data read should fail!\n",
__func__);
else {
rte_pktmbuf_free(m);
m = NULL;
continue;
}
}
if (data_copy == NULL)
GOTO_FAIL("%s: Error in reading packet data!\n",
__func__);
for (pos = 0; pos < test_cases[i].read_len; pos++) {
if (data_copy[pos] !=
(char)((test_cases[i].read_off + pos)
% 0xffff))
GOTO_FAIL("Data corrupted at offset %u is %2X",
pos, data_copy[pos]);
}
rte_pktmbuf_dump(stdout, m, rte_pktmbuf_pkt_len(m));
rte_pktmbuf_free(m);
m = NULL;
}
return 0;
fail:
if (m != NULL) {
rte_pktmbuf_free(m);
m = NULL;
}
return -1;
}
/* Define a free call back function to be used for external buffer */
static void
ext_buf_free_callback_fn(void *addr, void *opaque)
{
bool *freed = opaque;
if (addr == NULL) {
printf("External buffer address is invalid\n");
return;
}
rte_free(addr);
*freed = true;
printf("External buffer freed via callback\n");
}
/*
* Test to initialize shared data in external buffer before attaching to mbuf
* - Allocate mbuf with no data.
* - Allocate external buffer with size should be large enough to accommodate
* rte_mbuf_ext_shared_info.
* - Invoke pktmbuf_ext_shinfo_init_helper to initialize shared data.
* - Invoke rte_pktmbuf_attach_extbuf to attach external buffer to the mbuf.
* - Clone another mbuf and attach the same external buffer to it.
* - Invoke rte_pktmbuf_detach_extbuf to detach the external buffer from mbuf.
*/
static int
test_pktmbuf_ext_shinfo_init_helper(struct rte_mempool *pktmbuf_pool)
{
struct rte_mbuf *m = NULL;
struct rte_mbuf *clone = NULL;
struct rte_mbuf_ext_shared_info *ret_shinfo = NULL;
rte_iova_t buf_iova;
void *ext_buf_addr = NULL;
uint16_t buf_len = EXT_BUF_TEST_DATA_LEN +
sizeof(struct rte_mbuf_ext_shared_info);
bool freed = false;
/* alloc a mbuf */
m = rte_pktmbuf_alloc(pktmbuf_pool);
if (m == NULL)
GOTO_FAIL("%s: mbuf allocation failed!\n", __func__);
if (rte_pktmbuf_pkt_len(m) != 0)
GOTO_FAIL("%s: Bad packet length\n", __func__);
rte_mbuf_sanity_check(m, 0);
ext_buf_addr = rte_malloc("External buffer", buf_len,
RTE_CACHE_LINE_SIZE);
if (ext_buf_addr == NULL)
GOTO_FAIL("%s: External buffer allocation failed\n", __func__);
ret_shinfo = rte_pktmbuf_ext_shinfo_init_helper(ext_buf_addr, &buf_len,
ext_buf_free_callback_fn, &freed);
if (ret_shinfo == NULL)
GOTO_FAIL("%s: Shared info initialization failed!\n", __func__);
if (rte_mbuf_ext_refcnt_read(ret_shinfo) != 1)
GOTO_FAIL("%s: External refcount is not 1\n", __func__);
if (rte_mbuf_refcnt_read(m) != 1)
GOTO_FAIL("%s: Invalid refcnt in mbuf\n", __func__);
buf_iova = rte_mem_virt2iova(ext_buf_addr);
rte_pktmbuf_attach_extbuf(m, ext_buf_addr, buf_iova, buf_len,
ret_shinfo);
if (m->ol_flags != RTE_MBUF_F_EXTERNAL)
GOTO_FAIL("%s: External buffer is not attached to mbuf\n",
__func__);
/* allocate one more mbuf */
clone = rte_pktmbuf_clone(m, pktmbuf_pool);
if (clone == NULL)
GOTO_FAIL("%s: mbuf clone allocation failed!\n", __func__);
if (rte_pktmbuf_pkt_len(clone) != 0)
GOTO_FAIL("%s: Bad packet length\n", __func__);
/* attach the same external buffer to the cloned mbuf */
rte_pktmbuf_attach_extbuf(clone, ext_buf_addr, buf_iova, buf_len,
ret_shinfo);
if (clone->ol_flags != RTE_MBUF_F_EXTERNAL)
GOTO_FAIL("%s: External buffer is not attached to mbuf\n",
__func__);
if (rte_mbuf_ext_refcnt_read(ret_shinfo) != 2)
GOTO_FAIL("%s: Invalid ext_buf ref_cnt\n", __func__);
if (freed)
GOTO_FAIL("%s: extbuf should not be freed\n", __func__);
/* test to manually update ext_buf_ref_cnt from 2 to 3*/
rte_mbuf_ext_refcnt_update(ret_shinfo, 1);
if (rte_mbuf_ext_refcnt_read(ret_shinfo) != 3)
GOTO_FAIL("%s: Update ext_buf ref_cnt failed\n", __func__);
if (freed)
GOTO_FAIL("%s: extbuf should not be freed\n", __func__);
/* reset the ext_refcnt before freeing the external buffer */
rte_mbuf_ext_refcnt_set(ret_shinfo, 2);
if (rte_mbuf_ext_refcnt_read(ret_shinfo) != 2)
GOTO_FAIL("%s: set ext_buf ref_cnt failed\n", __func__);
if (freed)
GOTO_FAIL("%s: extbuf should not be freed\n", __func__);
/* detach the external buffer from mbufs */
rte_pktmbuf_detach_extbuf(m);
/* check if ref cnt is decremented */
if (rte_mbuf_ext_refcnt_read(ret_shinfo) != 1)
GOTO_FAIL("%s: Invalid ext_buf ref_cnt\n", __func__);
if (freed)
GOTO_FAIL("%s: extbuf should not be freed\n", __func__);
rte_pktmbuf_detach_extbuf(clone);
if (!freed)
GOTO_FAIL("%s: extbuf should be freed\n", __func__);
freed = false;
rte_pktmbuf_free(m);
m = NULL;
rte_pktmbuf_free(clone);
clone = NULL;
return 0;
fail:
if (m) {
rte_pktmbuf_free(m);
m = NULL;
}
if (clone) {
rte_pktmbuf_free(clone);
clone = NULL;
}
if (ext_buf_addr != NULL) {
rte_free(ext_buf_addr);
ext_buf_addr = NULL;
}
return -1;
}
/*
* Test the mbuf pool with pinned external data buffers
* - Allocate memory zone for external buffer
* - Create the mbuf pool with pinned external buffer
* - Check the created pool with relevant mbuf pool unit tests
*/
static int
test_pktmbuf_ext_pinned_buffer(struct rte_mempool *std_pool)
{
struct rte_pktmbuf_extmem ext_mem;
struct rte_mempool *pinned_pool = NULL;
const struct rte_memzone *mz = NULL;
printf("Test mbuf pool with external pinned data buffers\n");
/* Allocate memzone for the external data buffer */
mz = rte_memzone_reserve("pinned_pool",
NB_MBUF * MBUF_DATA_SIZE,
SOCKET_ID_ANY,
RTE_MEMZONE_2MB | RTE_MEMZONE_SIZE_HINT_ONLY);
if (mz == NULL)
GOTO_FAIL("%s: Memzone allocation failed\n", __func__);
/* Create the mbuf pool with pinned external data buffer */
ext_mem.buf_ptr = mz->addr;
ext_mem.buf_iova = mz->iova;
ext_mem.buf_len = mz->len;
ext_mem.elt_size = MBUF_DATA_SIZE;
pinned_pool = rte_pktmbuf_pool_create_extbuf("test_pinned_pool",
NB_MBUF, MEMPOOL_CACHE_SIZE, 0,
MBUF_DATA_SIZE, SOCKET_ID_ANY,
&ext_mem, 1);
if (pinned_pool == NULL)
GOTO_FAIL("%s: Mbuf pool with pinned external"
" buffer creation failed\n", __func__);
/* test multiple mbuf alloc */
if (test_pktmbuf_pool(pinned_pool) < 0)
GOTO_FAIL("%s: test_mbuf_pool(pinned) failed\n",
__func__);
/* do it another time to check that all mbufs were freed */
if (test_pktmbuf_pool(pinned_pool) < 0)
GOTO_FAIL("%s: test_mbuf_pool(pinned) failed (2)\n",
__func__);
/* test that the data pointer on a packet mbuf is set properly */
if (test_pktmbuf_pool_ptr(pinned_pool) < 0)
GOTO_FAIL("%s: test_pktmbuf_pool_ptr(pinned) failed\n",
__func__);
/* test data manipulation in mbuf with non-ascii data */
if (test_pktmbuf_with_non_ascii_data(pinned_pool) < 0)
GOTO_FAIL("%s: test_pktmbuf_with_non_ascii_data(pinned)"
" failed\n", __func__);
/* test free pktmbuf segment one by one */
if (test_pktmbuf_free_segment(pinned_pool) < 0)
GOTO_FAIL("%s: test_pktmbuf_free_segment(pinned) failed\n",
__func__);
if (testclone_testupdate_testdetach(pinned_pool, std_pool) < 0)
GOTO_FAIL("%s: testclone_and_testupdate(pinned) failed\n",
__func__);
if (test_pktmbuf_copy(pinned_pool, std_pool) < 0)
GOTO_FAIL("%s: test_pktmbuf_copy(pinned) failed\n",
__func__);
if (test_failing_mbuf_sanity_check(pinned_pool) < 0)
GOTO_FAIL("%s: test_failing_mbuf_sanity_check(pinned)"
" failed\n", __func__);
if (test_mbuf_linearize_check(pinned_pool) < 0)
GOTO_FAIL("%s: test_mbuf_linearize_check(pinned) failed\n",
__func__);
/* test for allocating a bulk of mbufs with various sizes */
if (test_pktmbuf_alloc_bulk(pinned_pool) < 0)
GOTO_FAIL("%s: test_rte_pktmbuf_alloc_bulk(pinned) failed\n",
__func__);
/* test for allocating a bulk of mbufs with various sizes */
if (test_neg_pktmbuf_alloc_bulk(pinned_pool) < 0)
GOTO_FAIL("%s: test_neg_rte_pktmbuf_alloc_bulk(pinned)"
" failed\n", __func__);
/* test to read mbuf packet */
if (test_pktmbuf_read(pinned_pool) < 0)
GOTO_FAIL("%s: test_rte_pktmbuf_read(pinned) failed\n",
__func__);
/* test to read mbuf packet from offset */
if (test_pktmbuf_read_from_offset(pinned_pool) < 0)
GOTO_FAIL("%s: test_rte_pktmbuf_read_from_offset(pinned)"
" failed\n", __func__);
/* test to read data from chain of mbufs with data segments */
if (test_pktmbuf_read_from_chain(pinned_pool) < 0)
GOTO_FAIL("%s: test_rte_pktmbuf_read_from_chain(pinned)"
" failed\n", __func__);
RTE_SET_USED(std_pool);
rte_mempool_free(pinned_pool);
rte_memzone_free(mz);
return 0;
fail:
rte_mempool_free(pinned_pool);
rte_memzone_free(mz);
return -1;
}
static int
test_mbuf_dyn(struct rte_mempool *pktmbuf_pool)
{
const struct rte_mbuf_dynfield dynfield = {
.name = "test-dynfield",
.size = sizeof(uint8_t),
.align = __alignof__(uint8_t),
.flags = 0,
};
const struct rte_mbuf_dynfield dynfield2 = {
.name = "test-dynfield2",
.size = sizeof(uint16_t),
.align = __alignof__(uint16_t),
.flags = 0,
};
const struct rte_mbuf_dynfield dynfield3 = {
.name = "test-dynfield3",
.size = sizeof(uint8_t),
.align = __alignof__(uint8_t),
.flags = 0,
};
const struct rte_mbuf_dynfield dynfield_fail_big = {
.name = "test-dynfield-fail-big",
.size = 256,
.align = 1,
.flags = 0,
};
const struct rte_mbuf_dynfield dynfield_fail_align = {
.name = "test-dynfield-fail-align",
.size = 1,
.align = 3,
.flags = 0,
};
const struct rte_mbuf_dynfield dynfield_fail_flag = {
.name = "test-dynfield",
.size = sizeof(uint8_t),
.align = __alignof__(uint8_t),
.flags = 1,
};
const struct rte_mbuf_dynflag dynflag_fail_flag = {
.name = "test-dynflag",
.flags = 1,
};
const struct rte_mbuf_dynflag dynflag = {
.name = "test-dynflag",
.flags = 0,
};
const struct rte_mbuf_dynflag dynflag2 = {
.name = "test-dynflag2",
.flags = 0,
};
const struct rte_mbuf_dynflag dynflag3 = {
.name = "test-dynflag3",
.flags = 0,
};
struct rte_mbuf *m = NULL;
int offset, offset2, offset3;
int flag, flag2, flag3;
int ret;
printf("Test mbuf dynamic fields and flags\n");
rte_mbuf_dyn_dump(stdout);
offset = rte_mbuf_dynfield_register(&dynfield);
if (offset == -1)
GOTO_FAIL("failed to register dynamic field, offset=%d: %s",
offset, strerror(errno));
ret = rte_mbuf_dynfield_register(&dynfield);
if (ret != offset)
GOTO_FAIL("failed to lookup dynamic field, ret=%d: %s",
ret, strerror(errno));
offset2 = rte_mbuf_dynfield_register(&dynfield2);
if (offset2 == -1 || offset2 == offset || (offset2 & 1))
GOTO_FAIL("failed to register dynamic field 2, offset2=%d: %s",
offset2, strerror(errno));
offset3 = rte_mbuf_dynfield_register_offset(&dynfield3,
offsetof(struct rte_mbuf, dynfield1[1]));
if (offset3 != offsetof(struct rte_mbuf, dynfield1[1])) {
if (rte_errno == EBUSY)
printf("mbuf test error skipped: dynfield is busy\n");
else
GOTO_FAIL("failed to register dynamic field 3, offset="
"%d: %s", offset3, strerror(errno));
}
printf("dynfield: offset=%d, offset2=%d, offset3=%d\n",
offset, offset2, offset3);
ret = rte_mbuf_dynfield_register(&dynfield_fail_big);
if (ret != -1)
GOTO_FAIL("dynamic field creation should fail (too big)");
ret = rte_mbuf_dynfield_register(&dynfield_fail_align);
if (ret != -1)
GOTO_FAIL("dynamic field creation should fail (bad alignment)");
ret = rte_mbuf_dynfield_register_offset(&dynfield_fail_align,
offsetof(struct rte_mbuf, ol_flags));
if (ret != -1)
GOTO_FAIL("dynamic field creation should fail (not avail)");
ret = rte_mbuf_dynfield_register(&dynfield_fail_flag);
if (ret != -1)
GOTO_FAIL("dynamic field creation should fail (invalid flag)");
ret = rte_mbuf_dynflag_register(&dynflag_fail_flag);
if (ret != -1)
GOTO_FAIL("dynamic flag creation should fail (invalid flag)");
flag = rte_mbuf_dynflag_register(&dynflag);
if (flag == -1)
GOTO_FAIL("failed to register dynamic flag, flag=%d: %s",
flag, strerror(errno));
ret = rte_mbuf_dynflag_register(&dynflag);
if (ret != flag)
GOTO_FAIL("failed to lookup dynamic flag, ret=%d: %s",
ret, strerror(errno));
flag2 = rte_mbuf_dynflag_register(&dynflag2);
if (flag2 == -1 || flag2 == flag)
GOTO_FAIL("failed to register dynamic flag 2, flag2=%d: %s",
flag2, strerror(errno));
flag3 = rte_mbuf_dynflag_register_bitnum(&dynflag3,
rte_bsf64(RTE_MBUF_F_LAST_FREE));
if (flag3 != rte_bsf64(RTE_MBUF_F_LAST_FREE))
GOTO_FAIL("failed to register dynamic flag 3, flag3=%d: %s",
flag3, strerror(errno));
printf("dynflag: flag=%d, flag2=%d, flag3=%d\n", flag, flag2, flag3);
/* set, get dynamic field */
m = rte_pktmbuf_alloc(pktmbuf_pool);
if (m == NULL)
GOTO_FAIL("Cannot allocate mbuf");
*RTE_MBUF_DYNFIELD(m, offset, uint8_t *) = 1;
if (*RTE_MBUF_DYNFIELD(m, offset, uint8_t *) != 1)
GOTO_FAIL("failed to read dynamic field");
*RTE_MBUF_DYNFIELD(m, offset2, uint16_t *) = 1000;
if (*RTE_MBUF_DYNFIELD(m, offset2, uint16_t *) != 1000)
GOTO_FAIL("failed to read dynamic field");
/* set a dynamic flag */
m->ol_flags |= (1ULL << flag);
rte_mbuf_dyn_dump(stdout);
rte_pktmbuf_free(m);
return 0;
fail:
rte_pktmbuf_free(m);
return -1;
}
/* check that m->nb_segs and m->next are reset on mbuf free */
static int
test_nb_segs_and_next_reset(void)
{
struct rte_mbuf *m0 = NULL, *m1 = NULL, *m2 = NULL;
struct rte_mempool *pool = NULL;
pool = rte_pktmbuf_pool_create("test_mbuf_reset",
3, 0, 0, MBUF_DATA_SIZE, SOCKET_ID_ANY);
if (pool == NULL)
GOTO_FAIL("Failed to create mbuf pool");
/* alloc mbufs */
m0 = rte_pktmbuf_alloc(pool);
m1 = rte_pktmbuf_alloc(pool);
m2 = rte_pktmbuf_alloc(pool);
if (m0 == NULL || m1 == NULL || m2 == NULL)
GOTO_FAIL("Failed to allocate mbuf");
/* append data in all of them */
if (rte_pktmbuf_append(m0, 500) == NULL ||
rte_pktmbuf_append(m1, 500) == NULL ||
rte_pktmbuf_append(m2, 500) == NULL)
GOTO_FAIL("Failed to append data in mbuf");
/* chain them in one mbuf m0 */
rte_pktmbuf_chain(m1, m2);
rte_pktmbuf_chain(m0, m1);
if (m0->nb_segs != 3 || m0->next != m1 || m1->next != m2 ||
m2->next != NULL) {
m1 = m2 = NULL;
GOTO_FAIL("Failed to chain mbufs");
}
/* split m0 chain in two, between m1 and m2 */
m0->nb_segs = 2;
m1->next = NULL;
m2->nb_segs = 1;
/* free the 2 mbuf chains m0 and m2 */
rte_pktmbuf_free(m0);
rte_pktmbuf_free(m2);
/* realloc the 3 mbufs */
m0 = rte_mbuf_raw_alloc(pool);
m1 = rte_mbuf_raw_alloc(pool);
m2 = rte_mbuf_raw_alloc(pool);
if (m0 == NULL || m1 == NULL || m2 == NULL)
GOTO_FAIL("Failed to reallocate mbuf");
/* ensure that m->next and m->nb_segs are reset allocated mbufs */
if (m0->nb_segs != 1 || m0->next != NULL ||
m1->nb_segs != 1 || m1->next != NULL ||
m2->nb_segs != 1 || m2->next != NULL)
GOTO_FAIL("nb_segs or next was not reset properly");
return 0;
fail:
if (pool != NULL)
rte_mempool_free(pool);
return -1;
}
static int
test_mbuf(void)
{
int ret = -1;
struct rte_mempool *pktmbuf_pool = NULL;
struct rte_mempool *pktmbuf_pool2 = NULL;
RTE_BUILD_BUG_ON(sizeof(struct rte_mbuf) != RTE_CACHE_LINE_MIN_SIZE * 2);
/* create pktmbuf pool if it does not exist */
pktmbuf_pool = rte_pktmbuf_pool_create("test_pktmbuf_pool",
NB_MBUF, MEMPOOL_CACHE_SIZE, 0, MBUF_DATA_SIZE,
SOCKET_ID_ANY);
if (pktmbuf_pool == NULL) {
printf("cannot allocate mbuf pool\n");
goto err;
}
/* test registration of dynamic fields and flags */
if (test_mbuf_dyn(pktmbuf_pool) < 0) {
printf("mbuf dynflag test failed\n");
goto err;
}
/* create a specific pktmbuf pool with a priv_size != 0 and no data
* room size */
pktmbuf_pool2 = rte_pktmbuf_pool_create("test_pktmbuf_pool2",
NB_MBUF, MEMPOOL_CACHE_SIZE, MBUF2_PRIV_SIZE, 0,
SOCKET_ID_ANY);
if (pktmbuf_pool2 == NULL) {
printf("cannot allocate mbuf pool\n");
goto err;
}
/* test multiple mbuf alloc */
if (test_pktmbuf_pool(pktmbuf_pool) < 0) {
printf("test_mbuf_pool() failed\n");
goto err;
}
/* do it another time to check that all mbufs were freed */
if (test_pktmbuf_pool(pktmbuf_pool) < 0) {
printf("test_mbuf_pool() failed (2)\n");
goto err;
}
/* test bulk mbuf alloc and free */
if (test_pktmbuf_pool_bulk() < 0) {
printf("test_pktmbuf_pool_bulk() failed\n");
goto err;
}
/* test that the pointer to the data on a packet mbuf is set properly */
if (test_pktmbuf_pool_ptr(pktmbuf_pool) < 0) {
printf("test_pktmbuf_pool_ptr() failed\n");
goto err;
}
/* test data manipulation in mbuf */
if (test_one_pktmbuf(pktmbuf_pool) < 0) {
printf("test_one_mbuf() failed\n");
goto err;
}
/*
* do it another time, to check that allocation reinitialize
* the mbuf correctly
*/
if (test_one_pktmbuf(pktmbuf_pool) < 0) {
printf("test_one_mbuf() failed (2)\n");
goto err;
}
if (test_pktmbuf_with_non_ascii_data(pktmbuf_pool) < 0) {
printf("test_pktmbuf_with_non_ascii_data() failed\n");
goto err;
}
/* test free pktmbuf segment one by one */
if (test_pktmbuf_free_segment(pktmbuf_pool) < 0) {
printf("test_pktmbuf_free_segment() failed.\n");
goto err;
}
if (testclone_testupdate_testdetach(pktmbuf_pool, pktmbuf_pool) < 0) {
printf("testclone_and_testupdate() failed \n");
goto err;
}
if (test_pktmbuf_copy(pktmbuf_pool, pktmbuf_pool) < 0) {
printf("test_pktmbuf_copy() failed\n");
goto err;
}
if (test_attach_from_different_pool(pktmbuf_pool, pktmbuf_pool2) < 0) {
printf("test_attach_from_different_pool() failed\n");
goto err;
}
if (test_refcnt_mbuf() < 0) {
printf("test_refcnt_mbuf() failed \n");
goto err;
}
if (test_failing_mbuf_sanity_check(pktmbuf_pool) < 0) {
printf("test_failing_mbuf_sanity_check() failed\n");
goto err;
}
if (test_mbuf_linearize_check(pktmbuf_pool) < 0) {
printf("test_mbuf_linearize_check() failed\n");
goto err;
}
if (test_tx_offload() < 0) {
printf("test_tx_offload() failed\n");
goto err;
}
if (test_get_rx_ol_flag_list() < 0) {
printf("test_rte_get_rx_ol_flag_list() failed\n");
goto err;
}
if (test_get_tx_ol_flag_list() < 0) {
printf("test_rte_get_tx_ol_flag_list() failed\n");
goto err;
}
if (test_get_rx_ol_flag_name() < 0) {
printf("test_rte_get_rx_ol_flag_name() failed\n");
goto err;
}
if (test_get_tx_ol_flag_name() < 0) {
printf("test_rte_get_tx_ol_flag_name() failed\n");
goto err;
}
if (test_mbuf_validate_tx_offload_one(pktmbuf_pool) < 0) {
printf("test_mbuf_validate_tx_offload_one() failed\n");
goto err;
}
/* test for allocating a bulk of mbufs with various sizes */
if (test_pktmbuf_alloc_bulk(pktmbuf_pool) < 0) {
printf("test_rte_pktmbuf_alloc_bulk() failed\n");
goto err;
}
/* test for allocating a bulk of mbufs with various sizes */
if (test_neg_pktmbuf_alloc_bulk(pktmbuf_pool) < 0) {
printf("test_neg_rte_pktmbuf_alloc_bulk() failed\n");
goto err;
}
/* test to read mbuf packet */
if (test_pktmbuf_read(pktmbuf_pool) < 0) {
printf("test_rte_pktmbuf_read() failed\n");
goto err;
}
/* test to read mbuf packet from offset */
if (test_pktmbuf_read_from_offset(pktmbuf_pool) < 0) {
printf("test_rte_pktmbuf_read_from_offset() failed\n");
goto err;
}
/* test to read data from chain of mbufs with data segments */
if (test_pktmbuf_read_from_chain(pktmbuf_pool) < 0) {
printf("test_rte_pktmbuf_read_from_chain() failed\n");
goto err;
}
/* test to initialize shared info. at the end of external buffer */
if (test_pktmbuf_ext_shinfo_init_helper(pktmbuf_pool) < 0) {
printf("test_pktmbuf_ext_shinfo_init_helper() failed\n");
goto err;
}
/* test the mbuf pool with pinned external data buffers */
if (test_pktmbuf_ext_pinned_buffer(pktmbuf_pool) < 0) {
printf("test_pktmbuf_ext_pinned_buffer() failed\n");
goto err;
}
/* test reset of m->nb_segs and m->next on mbuf free */
if (test_nb_segs_and_next_reset() < 0) {
printf("test_nb_segs_and_next_reset() failed\n");
goto err;
}
ret = 0;
err:
rte_mempool_free(pktmbuf_pool);
rte_mempool_free(pktmbuf_pool2);
return ret;
}
#undef GOTO_FAIL
REGISTER_TEST_COMMAND(mbuf_autotest, test_mbuf);
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