summaryrefslogtreecommitdiffstats
path: root/src/spdk/dpdk/app/test/test_external_mem.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/spdk/dpdk/app/test/test_external_mem.c')
-rw-r--r--src/spdk/dpdk/app/test/test_external_mem.c576
1 files changed, 576 insertions, 0 deletions
diff --git a/src/spdk/dpdk/app/test/test_external_mem.c b/src/spdk/dpdk/app/test/test_external_mem.c
new file mode 100644
index 000000000..7eb81f644
--- /dev/null
+++ b/src/spdk/dpdk/app/test/test_external_mem.c
@@ -0,0 +1,576 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2018 Intel Corporation
+ */
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <sys/mman.h>
+#include <sys/wait.h>
+
+#include <rte_common.h>
+#include <rte_debug.h>
+#include <rte_eal.h>
+#include <rte_errno.h>
+#include <rte_malloc.h>
+#include <rte_ring.h>
+#include <rte_string_fns.h>
+
+#include "test.h"
+
+#define EXTERNAL_MEM_SZ (RTE_PGSIZE_4K << 10) /* 4M of data */
+
+static int
+check_mem(void *addr, rte_iova_t *iova, size_t pgsz, int n_pages)
+{
+ int i;
+
+ /* check that we can get this memory from EAL now */
+ for (i = 0; i < n_pages; i++) {
+ const struct rte_memseg_list *msl;
+ const struct rte_memseg *ms;
+ void *cur = RTE_PTR_ADD(addr, pgsz * i);
+ rte_iova_t expected_iova;
+
+ msl = rte_mem_virt2memseg_list(cur);
+ if (!msl->external) {
+ printf("%s():%i: Memseg list is not marked as external\n",
+ __func__, __LINE__);
+ return -1;
+ }
+
+ ms = rte_mem_virt2memseg(cur, msl);
+ if (ms == NULL) {
+ printf("%s():%i: Failed to retrieve memseg for external mem\n",
+ __func__, __LINE__);
+ return -1;
+ }
+ if (ms->addr != cur) {
+ printf("%s():%i: VA mismatch\n", __func__, __LINE__);
+ return -1;
+ }
+ expected_iova = (iova == NULL) ? RTE_BAD_IOVA : iova[i];
+ if (ms->iova != expected_iova) {
+ printf("%s():%i: IOVA mismatch\n", __func__, __LINE__);
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static int
+test_malloc_invalid_param(void *addr, size_t len, size_t pgsz, rte_iova_t *iova,
+ int n_pages)
+{
+ static const char * const names[] = {
+ NULL, /* NULL name */
+ "", /* empty name */
+ "this heap name is definitely way too long to be valid"
+ };
+ const char *valid_name = "valid heap name";
+ unsigned int i;
+
+ /* check invalid name handling */
+ for (i = 0; i < RTE_DIM(names); i++) {
+ const char *name = names[i];
+
+ /* these calls may fail for other reasons, so check errno */
+ if (rte_malloc_heap_create(name) >= 0 || rte_errno != EINVAL) {
+ printf("%s():%i: Created heap with invalid name\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ if (rte_malloc_heap_destroy(name) >= 0 || rte_errno != EINVAL) {
+ printf("%s():%i: Destroyed heap with invalid name\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ if (rte_malloc_heap_get_socket(name) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Found socket for heap with invalid name\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ if (rte_malloc_heap_memory_add(name, addr, len,
+ NULL, 0, pgsz) >= 0 || rte_errno != EINVAL) {
+ printf("%s():%i: Added memory to heap with invalid name\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+ if (rte_malloc_heap_memory_remove(name, addr, len) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Removed memory from heap with invalid name\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ if (rte_malloc_heap_memory_attach(name, addr, len) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Attached memory to heap with invalid name\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+ if (rte_malloc_heap_memory_detach(name, addr, len) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Detached memory from heap with invalid name\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+ }
+
+ /* do same as above, but with a valid heap name */
+
+ /* skip create call */
+ if (rte_malloc_heap_destroy(valid_name) >= 0 || rte_errno != ENOENT) {
+ printf("%s():%i: Destroyed heap with invalid name\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+ if (rte_malloc_heap_get_socket(valid_name) >= 0 ||
+ rte_errno != ENOENT) {
+ printf("%s():%i: Found socket for heap with invalid name\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ /* these calls may fail for other reasons, so check errno */
+ if (rte_malloc_heap_memory_add(valid_name, addr, len,
+ NULL, 0, pgsz) >= 0 || rte_errno != ENOENT) {
+ printf("%s():%i: Added memory to non-existent heap\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+ if (rte_malloc_heap_memory_remove(valid_name, addr, len) >= 0 ||
+ rte_errno != ENOENT) {
+ printf("%s():%i: Removed memory from non-existent heap\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ if (rte_malloc_heap_memory_attach(valid_name, addr, len) >= 0 ||
+ rte_errno != ENOENT) {
+ printf("%s():%i: Attached memory to non-existent heap\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+ if (rte_malloc_heap_memory_detach(valid_name, addr, len) >= 0 ||
+ rte_errno != ENOENT) {
+ printf("%s():%i: Detached memory from non-existent heap\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ /* create a valid heap but test other invalid parameters */
+ if (rte_malloc_heap_create(valid_name) != 0) {
+ printf("%s():%i: Failed to create valid heap\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ /* zero length */
+ if (rte_malloc_heap_memory_add(valid_name, addr, 0,
+ NULL, 0, pgsz) >= 0 || rte_errno != EINVAL) {
+ printf("%s():%i: Added memory with invalid parameters\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ if (rte_malloc_heap_memory_remove(valid_name, addr, 0) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Removed memory with invalid parameters\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ if (rte_malloc_heap_memory_attach(valid_name, addr, 0) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Attached memory with invalid parameters\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+ if (rte_malloc_heap_memory_detach(valid_name, addr, 0) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Detached memory with invalid parameters\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ /* zero address */
+ if (rte_malloc_heap_memory_add(valid_name, NULL, len,
+ NULL, 0, pgsz) >= 0 || rte_errno != EINVAL) {
+ printf("%s():%i: Added memory with invalid parameters\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ if (rte_malloc_heap_memory_remove(valid_name, NULL, len) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Removed memory with invalid parameters\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ if (rte_malloc_heap_memory_attach(valid_name, NULL, len) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Attached memory with invalid parameters\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+ if (rte_malloc_heap_memory_detach(valid_name, NULL, len) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Detached memory with invalid parameters\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ /* the following tests are only valid if IOVA table is not NULL */
+ if (iova != NULL) {
+ /* wrong page count */
+ if (rte_malloc_heap_memory_add(valid_name, addr, len,
+ iova, 0, pgsz) >= 0 || rte_errno != EINVAL) {
+ printf("%s():%i: Added memory with invalid parameters\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+ if (rte_malloc_heap_memory_add(valid_name, addr, len,
+ iova, n_pages - 1, pgsz) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Added memory with invalid parameters\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+ if (rte_malloc_heap_memory_add(valid_name, addr, len,
+ iova, n_pages + 1, pgsz) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Added memory with invalid parameters\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+ }
+
+ /* tests passed, destroy heap */
+ if (rte_malloc_heap_destroy(valid_name) != 0) {
+ printf("%s():%i: Failed to destroy valid heap\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+ return 0;
+fail:
+ rte_malloc_heap_destroy(valid_name);
+ return -1;
+}
+
+static int
+test_malloc_basic(void *addr, size_t len, size_t pgsz, rte_iova_t *iova,
+ int n_pages)
+{
+ const char *heap_name = "heap";
+ void *ptr = NULL;
+ int socket_id;
+ const struct rte_memzone *mz = NULL, *contig_mz = NULL;
+
+ /* create heap */
+ if (rte_malloc_heap_create(heap_name) != 0) {
+ printf("%s():%i: Failed to create malloc heap\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ /* get socket ID corresponding to this heap */
+ socket_id = rte_malloc_heap_get_socket(heap_name);
+ if (socket_id < 0) {
+ printf("%s():%i: cannot find socket for external heap\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ /* heap is empty, so any allocation should fail */
+ ptr = rte_malloc_socket("EXTMEM", 64, 0, socket_id);
+ if (ptr != NULL) {
+ printf("%s():%i: Allocated from empty heap\n", __func__,
+ __LINE__);
+ goto fail;
+ }
+
+ /* add memory to heap */
+ if (rte_malloc_heap_memory_add(heap_name, addr, len,
+ iova, n_pages, pgsz) != 0) {
+ printf("%s():%i: Failed to add memory to heap\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ /* check if memory is accessible from EAL */
+ if (check_mem(addr, iova, pgsz, n_pages) < 0)
+ goto fail;
+
+ /* allocate - this now should succeed */
+ ptr = rte_malloc_socket("EXTMEM", 64, 0, socket_id);
+ if (ptr == NULL) {
+ printf("%s():%i: Failed to allocate from external heap\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ /* check if address is in expected range */
+ if (ptr < addr || ptr >= RTE_PTR_ADD(addr, len)) {
+ printf("%s():%i: Allocated from unexpected address space\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ /* we've allocated something - removing memory should fail */
+ if (rte_malloc_heap_memory_remove(heap_name, addr, len) >= 0 ||
+ rte_errno != EBUSY) {
+ printf("%s():%i: Removing memory succeeded when memory is not free\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+ if (rte_malloc_heap_destroy(heap_name) >= 0 || rte_errno != EBUSY) {
+ printf("%s():%i: Destroying heap succeeded when memory is not free\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ /* try allocating a memzone */
+ mz = rte_memzone_reserve("heap_test", pgsz * 2, socket_id, 0);
+ if (mz == NULL) {
+ printf("%s():%i: Failed to reserve memzone\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+ /* try allocating an IOVA-contiguous memzone - this should succeed
+ * if we've set up a contiguous IOVA table, and fail if we haven't.
+ */
+ contig_mz = rte_memzone_reserve("heap_test_contig", pgsz * 2, socket_id,
+ RTE_MEMZONE_IOVA_CONTIG);
+ if ((iova == NULL) != (contig_mz == NULL)) {
+ printf("%s():%i: Failed to reserve memzone\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ rte_malloc_dump_stats(stdout, NULL);
+ rte_malloc_dump_heaps(stdout);
+
+ /* free memory - removing it should now succeed */
+ rte_free(ptr);
+ ptr = NULL;
+
+ rte_memzone_free(mz);
+ mz = NULL;
+ rte_memzone_free(contig_mz);
+ contig_mz = NULL;
+
+ if (rte_malloc_heap_memory_remove(heap_name, addr, len) != 0) {
+ printf("%s():%i: Removing memory from heap failed\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+ if (rte_malloc_heap_destroy(heap_name) != 0) {
+ printf("%s():%i: Destroying heap failed\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ return 0;
+fail:
+ rte_memzone_free(contig_mz);
+ rte_memzone_free(mz);
+ rte_free(ptr);
+ /* even if something failed, attempt to clean up */
+ rte_malloc_heap_memory_remove(heap_name, addr, len);
+ rte_malloc_heap_destroy(heap_name);
+
+ return -1;
+}
+
+static int
+test_extmem_invalid_param(void *addr, size_t len, size_t pgsz, rte_iova_t *iova,
+ int n_pages)
+{
+ /* these calls may fail for other reasons, so check errno */
+ if (rte_extmem_unregister(addr, len) >= 0 ||
+ rte_errno != ENOENT) {
+ printf("%s():%i: Unregistered non-existent memory\n",
+ __func__, __LINE__);
+ return -1;
+ }
+
+ if (rte_extmem_attach(addr, len) >= 0 ||
+ rte_errno != ENOENT) {
+ printf("%s():%i: Attached to non-existent memory\n",
+ __func__, __LINE__);
+ return -1;
+ }
+ if (rte_extmem_attach(addr, len) >= 0 ||
+ rte_errno != ENOENT) {
+ printf("%s():%i: Detached from non-existent memory\n",
+ __func__, __LINE__);
+ return -1;
+ }
+
+ /* zero length */
+ if (rte_extmem_register(addr, 0, NULL, 0, pgsz) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Registered memory with invalid parameters\n",
+ __func__, __LINE__);
+ return -1;
+ }
+
+ if (rte_extmem_unregister(addr, 0) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Unregistered memory with invalid parameters\n",
+ __func__, __LINE__);
+ return -1;
+ }
+
+ if (rte_extmem_attach(addr, 0) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Attached memory with invalid parameters\n",
+ __func__, __LINE__);
+ return -1;
+ }
+ if (rte_extmem_attach(addr, 0) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Detached memory with invalid parameters\n",
+ __func__, __LINE__);
+ return -1;
+ }
+
+ /* zero address */
+ if (rte_extmem_register(NULL, len, NULL, 0, pgsz) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Registered memory with invalid parameters\n",
+ __func__, __LINE__);
+ return -1;
+ }
+
+ if (rte_extmem_unregister(NULL, len) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Unregistered memory with invalid parameters\n",
+ __func__, __LINE__);
+ return -1;
+ }
+
+ if (rte_extmem_attach(NULL, len) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Attached memory with invalid parameters\n",
+ __func__, __LINE__);
+ return -1;
+ }
+ if (rte_extmem_attach(NULL, len) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Detached memory with invalid parameters\n",
+ __func__, __LINE__);
+ return -1;
+ }
+
+ /* the following tests are only valid if IOVA table is not NULL */
+ if (iova != NULL) {
+ /* wrong page count */
+ if (rte_extmem_register(addr, len,
+ iova, 0, pgsz) >= 0 || rte_errno != EINVAL) {
+ printf("%s():%i: Registered memory with invalid parameters\n",
+ __func__, __LINE__);
+ return -1;
+ }
+ if (rte_extmem_register(addr, len,
+ iova, n_pages - 1, pgsz) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Registered memory with invalid parameters\n",
+ __func__, __LINE__);
+ return -1;
+ }
+ if (rte_extmem_register(addr, len,
+ iova, n_pages + 1, pgsz) >= 0 ||
+ rte_errno != EINVAL) {
+ printf("%s():%i: Registered memory with invalid parameters\n",
+ __func__, __LINE__);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static int
+test_extmem_basic(void *addr, size_t len, size_t pgsz, rte_iova_t *iova,
+ int n_pages)
+{
+ /* register memory */
+ if (rte_extmem_register(addr, len, iova, n_pages, pgsz) != 0) {
+ printf("%s():%i: Failed to register memory\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ /* check if memory is accessible from EAL */
+ if (check_mem(addr, iova, pgsz, n_pages) < 0)
+ goto fail;
+
+ if (rte_extmem_unregister(addr, len) != 0) {
+ printf("%s():%i: Removing memory from heap failed\n",
+ __func__, __LINE__);
+ goto fail;
+ }
+
+ return 0;
+fail:
+ /* even if something failed, attempt to clean up */
+ rte_extmem_unregister(addr, len);
+
+ return -1;
+}
+
+/* we need to test attach/detach in secondary processes. */
+static int
+test_external_mem(void)
+{
+ size_t len = EXTERNAL_MEM_SZ;
+ size_t pgsz = RTE_PGSIZE_4K;
+ rte_iova_t iova[len / pgsz];
+ void *addr;
+ int ret, n_pages;
+ int i;
+
+ /* create external memory area */
+ n_pages = RTE_DIM(iova);
+ addr = mmap(NULL, len, PROT_WRITE | PROT_READ,
+ MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
+ if (addr == MAP_FAILED) {
+ printf("%s():%i: Failed to create dummy memory area\n",
+ __func__, __LINE__);
+ return -1;
+ }
+ for (i = 0; i < n_pages; i++) {
+ /* arbitrary IOVA */
+ rte_iova_t tmp = 0x100000000 + i * pgsz;
+ iova[i] = tmp;
+ }
+
+ /* test external heap memory */
+ ret = test_malloc_invalid_param(addr, len, pgsz, iova, n_pages);
+ ret |= test_malloc_basic(addr, len, pgsz, iova, n_pages);
+ /* when iova table is NULL, everything should still work */
+ ret |= test_malloc_invalid_param(addr, len, pgsz, NULL, n_pages);
+ ret |= test_malloc_basic(addr, len, pgsz, NULL, n_pages);
+
+ /* test non-heap memory */
+ ret |= test_extmem_invalid_param(addr, len, pgsz, iova, n_pages);
+ ret |= test_extmem_basic(addr, len, pgsz, iova, n_pages);
+ /* when iova table is NULL, everything should still work */
+ ret |= test_extmem_invalid_param(addr, len, pgsz, NULL, n_pages);
+ ret |= test_extmem_basic(addr, len, pgsz, NULL, n_pages);
+
+ munmap(addr, len);
+
+ return ret;
+}
+
+REGISTER_TEST_COMMAND(external_mem_autotest, test_external_mem);
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-27 03:57:54 +0000