--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#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_debug.h>
+#include <rte_log.h>
+#include <rte_common.h>
+#include <rte_memory.h>
+#include <rte_memcpy.h>
+#include <rte_memzone.h>
+#include <rte_launch.h>
+#include <rte_eal.h>
+#include <rte_per_lcore.h>
+#include <rte_lcore.h>
+#include <rte_atomic.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 "test.h"
+
+#define MBUF_DATA_SIZE 2048
+#define NB_MBUF 128
+#define MBUF_TEST_DATA_LEN 1464
+#define MBUF_TEST_DATA_LEN2 50
+#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)
+
+/* 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
+
+static struct rte_mempool *refcnt_pool = NULL;
+static struct rte_ring *refcnt_mbuf_ring = NULL;
+static volatile uint32_t refcnt_stop_slaves;
+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(void)
+{
+ 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(void)
+{
+ 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 int
+testclone_testupdate_testdetach(void)
+{
+ 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, 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;
+}
+
+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
+ */
+static int
+test_pktmbuf_pool(void)
+{
+ 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 that the pointer to the data on a packet mbuf is set properly
+ */
+static int
+test_pktmbuf_pool_ptr(void)
+{
+ 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(void)
+{
+ 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 efficency, recomended to run with RTE_LIBRTE_MBUF_DEBUG defined.
+ */
+
+#ifdef RTE_MBUF_REFCNT_ATOMIC
+
+static int
+test_refcnt_slave(__attribute__((unused)) void *arg)
+{
+ unsigned lcore, free;
+ void *mp = 0;
+
+ lcore = rte_lcore_id();
+ printf("%s started at lcore %u\n", __func__, lcore);
+
+ free = 0;
+ while (refcnt_stop_slaves == 0) {
+ if (rte_ring_dequeue(refcnt_mbuf_ring, &mp) == 0) {
+ free++;
+ rte_pktmbuf_free((struct rte_mbuf *)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 lcore, unsigned iter)
+{
+ 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 slave cores to free.
+ */
+ for (i = 0, n = rte_mempool_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 slave 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_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(1000);
+ }
+
+ 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_master(void)
+{
+ 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_stop_slaves = 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 lnum, master, slave, tref;
+
+
+ if ((lnum = rte_lcore_count()) == 1) {
+ printf("skipping %s, number of lcores: %u is not enough\n",
+ __func__, lnum);
+ return 0;
+ }
+
+ printf("starting %s, at %u lcores\n", __func__, lnum);
+
+ /* create refcnt pool & ring if they don't exist */
+
+ if (refcnt_pool == NULL &&
+ (refcnt_pool = rte_pktmbuf_pool_create(
+ MAKE_STRING(refcnt_pool),
+ REFCNT_MBUF_NUM, 0, 0, 0,
+ SOCKET_ID_ANY)) == NULL) {
+ printf("%s: cannot allocate " MAKE_STRING(refcnt_pool) "\n",
+ __func__);
+ return -1;
+ }
+
+ if (refcnt_mbuf_ring == NULL &&
+ (refcnt_mbuf_ring = rte_ring_create("refcnt_mbuf_ring",
+ REFCNT_RING_SIZE, SOCKET_ID_ANY,
+ RING_F_SP_ENQ)) == NULL) {
+ printf("%s: cannot allocate " MAKE_STRING(refcnt_mbuf_ring)
+ "\n", __func__);
+ return -1;
+ }
+
+ refcnt_stop_slaves = 0;
+ memset(refcnt_lcore, 0, sizeof (refcnt_lcore));
+
+ rte_eal_mp_remote_launch(test_refcnt_slave, NULL, SKIP_MASTER);
+
+ test_refcnt_master();
+
+ rte_eal_mp_wait_lcore();
+
+ /* check that we porcessed all references */
+ tref = 0;
+ master = rte_get_master_lcore();
+
+ RTE_LCORE_FOREACH_SLAVE(slave)
+ tref += refcnt_lcore[slave];
+
+ if (tref != refcnt_lcore[master])
+ rte_panic("refernced mbufs: %u, freed mbufs: %u\n",
+ tref, refcnt_lcore[master]);
+
+ rte_mempool_dump(stdout, refcnt_pool);
+ rte_ring_dump(stdout, refcnt_mbuf_ring);
+
+#endif
+ return 0;
+}
+
+#include <unistd.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) {
+ 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(void)
+{
+ 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_physaddr = 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(void)
+{
+ 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) {
+ pktmbuf_pool = rte_pktmbuf_pool_create("test_pktmbuf_pool",
+ NB_MBUF, 32, 0, MBUF_DATA_SIZE, SOCKET_ID_ANY);
+ }
+
+ if (pktmbuf_pool == NULL) {
+ printf("cannot allocate mbuf pool\n");
+ 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;
+ }
+
+ /* do it another time to check that all mbufs were freed */
+ if (test_pktmbuf_pool() < 0) {
+ printf("test_mbuf_pool() failed (2)\n");
+ return -1;
+ }
+
+ /* test that the pointer to the data on a packet mbuf is set properly */
+ if (test_pktmbuf_pool_ptr() < 0) {
+ printf("test_pktmbuf_pool_ptr() failed\n");
+ return -1;
+ }
+
+ /* test data manipulation in mbuf */
+ if (test_one_pktmbuf() < 0) {
+ printf("test_one_mbuf() failed\n");
+ return -1;
+ }
+
+
+ /*
+ * do it another time, to check that allocation reinitialize
+ * the mbuf correctly
+ */
+ if (test_one_pktmbuf() < 0) {
+ printf("test_one_mbuf() failed (2)\n");
+ return -1;
+ }
+
+ if (test_pktmbuf_with_non_ascii_data() < 0) {
+ printf("test_pktmbuf_with_non_ascii_data() failed\n");
+ return -1;
+ }
+
+ /* test free pktmbuf segment one by one */
+ if (test_pktmbuf_free_segment() < 0) {
+ printf("test_pktmbuf_free_segment() failed.\n");
+ return -1;
+ }
+
+ if (testclone_testupdate_testdetach()<0){
+ printf("testclone_and_testupdate() 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;
+ }
+
+ if (test_failing_mbuf_sanity_check() < 0) {
+ printf("test_failing_mbuf_sanity_check() failed\n");
+ return -1;
+ }
+ return 0;
+}
+
+static struct test_command mbuf_cmd = {
+ .command = "mbuf_autotest",
+ .callback = test_mbuf,
+};
+REGISTER_TEST_COMMAND(mbuf_cmd);
Code Review / deb_dpdk.git / blobdiff