1 files changed, 107 insertions, 0 deletions
diff --git a/src/spdk/dpdk/app/test/test_memory.c b/src/spdk/dpdk/app/test/test_memory.c
new file mode 100644
index 000000000..7d5ae99ba
--- /dev/null
+++ b/src/spdk/dpdk/app/test/test_memory.c
@@ -0,0 +1,107 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
+ */
+
+#include <stdio.h>
+#include <stdint.h>
+
+#include <rte_eal.h>
+#include <rte_memory.h>
+#include <rte_common.h>
+#include <rte_memzone.h>
+
+#include "test.h"
+
+/*
+ * Memory
+ * ======
+ *
+ * - Dump the mapped memory. The python-expect script checks that at
+ *   least one line is dumped.
+ *
+ * - Check that memory size is different than 0.
+ *
+ * - Try to read all memory; it should not segfault.
+ */
+
+static int
+check_mem(const struct rte_memseg_list *msl __rte_unused,
+		const struct rte_memseg *ms, void *arg __rte_unused)
+{
+	volatile uint8_t *mem = (volatile uint8_t *) ms->addr;
+	size_t i, max = ms->len;
+
+	for (i = 0; i < max; i++, mem++)
+		*mem;
+	return 0;
+}
+
+static int
+check_seg_fds(const struct rte_memseg_list *msl, const struct rte_memseg *ms,
+		void *arg __rte_unused)
+{
+	size_t offset;
+	int ret;
+
+	/* skip external segments */
+	if (msl->external)
+		return 0;
+
+	/* try segment fd first. we're in a callback, so thread-unsafe */
+	ret = rte_memseg_get_fd_thread_unsafe(ms);
+	if (ret < 0) {
+		/* ENOTSUP means segment is valid, but there is not support for
+		 * segment fd API (e.g. on FreeBSD).
+		 */
+		if (errno == ENOTSUP)
+			return 1;
+		/* all other errors are treated as failures */
+		return -1;
+	}
+
+	/* we're able to get memseg fd - try getting its offset */
+	ret = rte_memseg_get_fd_offset_thread_unsafe(ms, &offset);
+	if (ret < 0) {
+		if (errno == ENOTSUP)
+			return 1;
+		return -1;
+	}
+	return 0;
+}
+
+static int
+test_memory(void)
+{
+	uint64_t s;
+	int ret;
+
+	/*
+	 * dump the mapped memory: the python-expect script checks
+	 * that at least one line is dumped
+	 */
+	printf("Dump memory layout\n");
+	rte_dump_physmem_layout(stdout);
+
+	/* check that memory size is != 0 */
+	s = rte_eal_get_physmem_size();
+	if (s == 0) {
+		printf("No memory detected\n");
+		return -1;
+	}
+
+	/* try to read memory (should not segfault) */
+	rte_memseg_walk(check_mem, NULL);
+
+	/* check segment fd support */
+	ret = rte_memseg_walk(check_seg_fds, NULL);
+	if (ret == 1) {
+		printf("Segment fd API is unsupported\n");
+	} else if (ret == -1) {
+		printf("Error getting segment fd's\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+REGISTER_TEST_COMMAND(memory_autotest, test_memory);