--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2017 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 <rte_event_ring.h>
+
+#include "test.h"
+
+/*
+ * Event Ring
+ * ===========
+ *
+ * Test some basic ops for the event rings.
+ * Does not fully test everything, since most code is reused from rte_ring
+ * library and tested as part of the normal ring autotests.
+ */
+
+#define RING_SIZE 4096
+#define MAX_BULK 32
+
+static struct rte_event_ring *r;
+
+/*
+ * ensure failure to create ring with a bad ring size
+ */
+static int
+test_event_ring_creation_with_wrong_size(void)
+{
+ struct rte_event_ring *rp = NULL;
+
+ /* Test if ring size is not power of 2 */
+ rp = rte_event_ring_create("test_bad_ring_size", RING_SIZE + 1,
+ SOCKET_ID_ANY, 0);
+ if (rp != NULL)
+ return -1;
+
+ /* Test if ring size is exceeding the limit */
+ rp = rte_event_ring_create("test_bad_ring_size", (RTE_RING_SZ_MASK + 1),
+ SOCKET_ID_ANY, 0);
+ if (rp != NULL)
+ return -1;
+ return 0;
+}
+
+/*
+ * Test to check if a non-power-of-2 count causes the create
+ * function to fail correctly
+ */
+static int
+test_create_count_odd(void)
+{
+ struct rte_event_ring *r = rte_event_ring_create("test_event_ring_count",
+ 4097, SOCKET_ID_ANY, 0);
+ if (r != NULL)
+ return -1;
+ return 0;
+}
+
+static int
+test_lookup_null(void)
+{
+ struct rte_event_ring *rlp = rte_event_ring_lookup("ring_not_found");
+ if (rlp == NULL && rte_errno != ENOENT) {
+ printf("test failed to return error on null pointer\n");
+ return -1;
+ }
+ return 0;
+}
+
+static int
+test_basic_event_enqueue_dequeue(void)
+{
+ struct rte_event_ring *sr = NULL;
+ struct rte_event evs[16];
+ uint16_t ret, free_count, used_count;
+
+ memset(evs, 0, sizeof(evs));
+ sr = rte_event_ring_create("spsc_ring", 32, rte_socket_id(),
+ RING_F_SP_ENQ | RING_F_SC_DEQ);
+ if (sr == NULL) {
+ printf("Failed to create sp/sc ring\n");
+ return -1;
+ }
+ if (rte_event_ring_get_capacity(sr) != 31) {
+ printf("Error, invalid capacity\n");
+ goto error;
+ }
+
+ /* test sp/sc ring */
+ if (rte_event_ring_count(sr) != 0) {
+ printf("Error, ring not empty as expected\n");
+ goto error;
+ }
+ if (rte_event_ring_free_count(sr) != rte_event_ring_get_capacity(sr)) {
+ printf("Error, ring free count not as expected\n");
+ goto error;
+ }
+
+ ret = rte_event_ring_enqueue_burst(sr, evs, RTE_DIM(evs), &free_count);
+ if (ret != RTE_DIM(evs) ||
+ free_count != rte_event_ring_get_capacity(sr) - ret) {
+ printf("Error, status after enqueue is unexpected\n");
+ goto error;
+ }
+
+ ret = rte_event_ring_enqueue_burst(sr, evs, RTE_DIM(evs), &free_count);
+ if (ret != RTE_DIM(evs) - 1 ||
+ free_count != 0) {
+ printf("Error, status after enqueue is unexpected\n");
+ goto error;
+ }
+
+ ret = rte_event_ring_dequeue_burst(sr, evs, RTE_DIM(evs), &used_count);
+ if (ret != RTE_DIM(evs) ||
+ used_count != rte_event_ring_get_capacity(sr) - ret) {
+ printf("Error, status after enqueue is unexpected\n");
+ goto error;
+ }
+ ret = rte_event_ring_dequeue_burst(sr, evs, RTE_DIM(evs), &used_count);
+ if (ret != RTE_DIM(evs) - 1 ||
+ used_count != 0) {
+ printf("Error, status after enqueue is unexpected\n");
+ goto error;
+ }
+
+ rte_event_ring_free(sr);
+ return 0;
+error:
+ rte_event_ring_free(sr);
+ return -1;
+}
+
+static int
+test_event_ring_with_exact_size(void)
+{
+ struct rte_event_ring *std_ring, *exact_sz_ring;
+ struct rte_event ev = { .mbuf = NULL };
+ struct rte_event ev_array[16];
+ static const unsigned int ring_sz = RTE_DIM(ev_array);
+ unsigned int i;
+
+ std_ring = rte_event_ring_create("std", ring_sz, rte_socket_id(),
+ RING_F_SP_ENQ | RING_F_SC_DEQ);
+ if (std_ring == NULL) {
+ printf("%s: error, can't create std ring\n", __func__);
+ return -1;
+ }
+ exact_sz_ring = rte_event_ring_create("exact sz",
+ ring_sz, rte_socket_id(),
+ RING_F_SP_ENQ | RING_F_SC_DEQ | RING_F_EXACT_SZ);
+ if (exact_sz_ring == NULL) {
+ printf("%s: error, can't create exact size ring\n", __func__);
+ return -1;
+ }
+
+ /*
+ * Check that the exact size ring is bigger than the standard ring
+ */
+ if (rte_event_ring_get_size(std_ring) >=
+ rte_event_ring_get_size(exact_sz_ring)) {
+ printf("%s: error, std ring (size: %u) is not smaller than exact size one (size %u)\n",
+ __func__,
+ rte_event_ring_get_size(std_ring),
+ rte_event_ring_get_size(exact_sz_ring));
+ return -1;
+ }
+ /*
+ * check that the exact_sz_ring can hold one more element than the
+ * standard ring. (16 vs 15 elements)
+ */
+ for (i = 0; i < ring_sz - 1; i++) {
+ rte_event_ring_enqueue_burst(std_ring, &ev, 1, NULL);
+ rte_event_ring_enqueue_burst(exact_sz_ring, &ev, 1, NULL);
+ }
+ if (rte_event_ring_enqueue_burst(std_ring, &ev, 1, NULL) != 0) {
+ printf("%s: error, unexpected successful enqueue\n", __func__);
+ return -1;
+ }
+ if (rte_event_ring_enqueue_burst(exact_sz_ring, &ev, 1, NULL) != 1) {
+ printf("%s: error, enqueue failed\n", __func__);
+ return -1;
+ }
+
+ /* check that dequeue returns the expected number of elements */
+ if (rte_event_ring_dequeue_burst(exact_sz_ring, ev_array,
+ RTE_DIM(ev_array), NULL) != ring_sz) {
+ printf("%s: error, failed to dequeue expected nb of elements\n",
+ __func__);
+ return -1;
+ }
+
+ /* check that the capacity function returns expected value */
+ if (rte_event_ring_get_capacity(exact_sz_ring) != ring_sz) {
+ printf("%s: error, incorrect ring capacity reported\n",
+ __func__);
+ return -1;
+ }
+
+ rte_event_ring_free(std_ring);
+ rte_event_ring_free(exact_sz_ring);
+ return 0;
+}
+
+static int
+test_event_ring(void)
+{
+ if (r == NULL)
+ r = rte_event_ring_create("ev_test", RING_SIZE,
+ SOCKET_ID_ANY, 0);
+ if (r == NULL)
+ return -1;
+
+ /* retrieve the ring from its name */
+ if (rte_event_ring_lookup("ev_test") != r) {
+ printf("Cannot lookup ring from its name\n");
+ return -1;
+ }
+
+ /* basic operations */
+ if (test_create_count_odd() < 0) {
+ printf("Test failed to detect odd count\n");
+ return -1;
+ }
+ printf("Test detected odd count\n");
+
+ if (test_lookup_null() < 0) {
+ printf("Test failed to detect NULL ring lookup\n");
+ return -1;
+ }
+ printf("Test detected NULL ring lookup\n");
+
+ /* test of creating ring with wrong size */
+ if (test_event_ring_creation_with_wrong_size() < 0)
+ return -1;
+
+ if (test_basic_event_enqueue_dequeue() < 0)
+ return -1;
+
+ if (test_event_ring_with_exact_size() < 0)
+ return -1;
+
+ return 0;
+}
+
+REGISTER_TEST_COMMAND(event_ring_autotest, test_event_ring);
git.droids-corp.org / dpdk.git / commitdiff