[v5,4/8] test/ring: add stress tests for zero copy APIs

diff --git a/app/test/meson.build b/app/test/meson.build
index 8bfb02890..88c831a92 100644
--- a/app/test/meson.build
+++ b/app/test/meson.build
@@ -108,9 +108,11 @@  test_sources = files('commands.c',
 	'test_ring_mpmc_stress.c',
 	'test_ring_hts_stress.c',
 	'test_ring_mt_peek_stress.c',
+	'test_ring_mt_peek_stress_zc.c',
 	'test_ring_perf.c',
 	'test_ring_rts_stress.c',
 	'test_ring_st_peek_stress.c',
+	'test_ring_st_peek_stress_zc.c',
 	'test_ring_stress.c',
 	'test_rwlock.c',
 	'test_sched.c',
diff --git a/app/test/test_ring_mt_peek_stress_zc.c b/app/test/test_ring_mt_peek_stress_zc.c
new file mode 100644
index 000000000..7e0bd511a
--- /dev/null
+++ b/app/test/test_ring_mt_peek_stress_zc.c
@@ -0,0 +1,56 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2020 Arm Limited
+ */
+
+#include "test_ring.h"
+#include "test_ring_stress_impl.h"
+#include <rte_ring_elem.h>
+
+static inline uint32_t
+_st_ring_dequeue_bulk(struct rte_ring *r, void **obj, uint32_t n,
+	uint32_t *avail)
+{
+	uint32_t m;
+	struct rte_ring_zc_data zcd;
+
+	m = rte_ring_dequeue_zc_bulk_start(r, n, &zcd, avail);
+	n = (m == n) ? n : 0;
+	if (n != 0) {
+		/* Copy the data from the ring */
+		test_ring_copy_from(&zcd, obj, -1, n);
+		rte_ring_dequeue_zc_finish(r, n);
+	}
+
+	return n;
+}
+
+static inline uint32_t
+_st_ring_enqueue_bulk(struct rte_ring *r, void * const *obj, uint32_t n,
+	uint32_t *free)
+{
+	uint32_t m;
+	struct rte_ring_zc_data zcd;
+
+	m = rte_ring_enqueue_zc_bulk_start(r, n, &zcd, free);
+	n = (m == n) ? n : 0;
+	if (n != 0) {
+		/* Copy the data from the ring */
+		test_ring_copy_to(&zcd, obj, -1, n);
+		rte_ring_enqueue_zc_finish(r, n);
+	}
+
+	return n;
+}
+
+static int
+_st_ring_init(struct rte_ring *r, const char *name, uint32_t num)
+{
+	return rte_ring_init(r, name, num,
+		RING_F_MP_HTS_ENQ | RING_F_MC_HTS_DEQ);
+}
+
+const struct test test_ring_mt_peek_stress_zc = {
+	.name = "MT_PEEK_ZC",
+	.nb_case = RTE_DIM(tests),
+	.cases = tests,
+};
diff --git a/app/test/test_ring_st_peek_stress_zc.c b/app/test/test_ring_st_peek_stress_zc.c
new file mode 100644
index 000000000..b9dbd4a6f
--- /dev/null
+++ b/app/test/test_ring_st_peek_stress_zc.c
@@ -0,0 +1,63 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2020 Arm Limited
+ */
+
+#include "test_ring.h"
+#include "test_ring_stress_impl.h"
+#include <rte_ring_elem.h>
+
+static inline uint32_t
+_st_ring_dequeue_bulk(struct rte_ring *r, void **obj, uint32_t n,
+	uint32_t *avail)
+{
+	uint32_t m;
+	struct rte_ring_zc_data zcd;
+
+	static rte_spinlock_t lck = RTE_SPINLOCK_INITIALIZER;
+
+	rte_spinlock_lock(&lck);
+
+	m = rte_ring_dequeue_zc_bulk_start(r, n, &zcd, avail);
+	if (m != 0) {
+		/* Copy the data from the ring */
+		test_ring_copy_from(&zcd, obj, -1, m);
+		rte_ring_dequeue_zc_finish(r, m);
+	}
+
+	rte_spinlock_unlock(&lck);
+	return m;
+}
+
+static inline uint32_t
+_st_ring_enqueue_bulk(struct rte_ring *r, void * const *obj, uint32_t n,
+	uint32_t *free)
+{
+	uint32_t m;
+	struct rte_ring_zc_data zcd;
+
+	static rte_spinlock_t lck = RTE_SPINLOCK_INITIALIZER;
+
+	rte_spinlock_lock(&lck);
+
+	m = rte_ring_enqueue_zc_bulk_start(r, n, &zcd, free);
+	if (m != 0) {
+		/* Copy the data from the ring */
+		test_ring_copy_to(&zcd, obj, -1, m);
+		rte_ring_enqueue_zc_finish(r, m);
+	}
+
+	rte_spinlock_unlock(&lck);
+	return m;
+}
+
+static int
+_st_ring_init(struct rte_ring *r, const char *name, uint32_t num)
+{
+	return rte_ring_init(r, name, num, RING_F_SP_ENQ | RING_F_SC_DEQ);
+}
+
+const struct test test_ring_st_peek_stress_zc = {
+	.name = "ST_PEEK_ZC",
+	.nb_case = RTE_DIM(tests),
+	.cases = tests,
+};
diff --git a/app/test/test_ring_stress.c b/app/test/test_ring_stress.c
index c4f82ea56..1af45e0fc 100644
--- a/app/test/test_ring_stress.c
+++ b/app/test/test_ring_stress.c
@@ -49,9 +49,15 @@  test_ring_stress(void)
 	n += test_ring_mt_peek_stress.nb_case;
 	k += run_test(&test_ring_mt_peek_stress);
 
+	n += test_ring_mt_peek_stress_zc.nb_case;
+	k += run_test(&test_ring_mt_peek_stress_zc);
+
 	n += test_ring_st_peek_stress.nb_case;
 	k += run_test(&test_ring_st_peek_stress);
 
+	n += test_ring_st_peek_stress_zc.nb_case;
+	k += run_test(&test_ring_st_peek_stress_zc);
+
 	printf("Number of tests:\t%u\nSuccess:\t%u\nFailed:\t%u\n",
 		n, k, n - k);
 	return (k != n);
diff --git a/app/test/test_ring_stress.h b/app/test/test_ring_stress.h
index c85d6fa92..416d68c9a 100644
--- a/app/test/test_ring_stress.h
+++ b/app/test/test_ring_stress.h
@@ -36,4 +36,6 @@  extern const struct test test_ring_mpmc_stress;
 extern const struct test test_ring_rts_stress;
 extern const struct test test_ring_hts_stress;
 extern const struct test test_ring_mt_peek_stress;
+extern const struct test test_ring_mt_peek_stress_zc;
 extern const struct test test_ring_st_peek_stress;
+extern const struct test test_ring_st_peek_stress_zc;