}
}
+static int
+alloc_gpu_memory(uint16_t gpu_id)
+{
+ void *ptr_1 = NULL;
+ void *ptr_2 = NULL;
+ size_t buf_bytes = 1024;
+ int ret;
+
+ printf("\n=======> TEST: Allocate GPU memory\n");
+
+ /* Alloc memory on GPU 0 */
+ ptr_1 = rte_gpu_mem_alloc(gpu_id, buf_bytes);
+ if (ptr_1 == NULL) {
+ fprintf(stderr, "rte_gpu_mem_alloc GPU memory returned error\n");
+ return -1;
+ }
+ printf("GPU memory allocated at 0x%p %zdB\n", ptr_1, buf_bytes);
+
+ ptr_2 = rte_gpu_mem_alloc(gpu_id, buf_bytes);
+ if (ptr_2 == NULL) {
+ fprintf(stderr, "rte_gpu_mem_alloc GPU memory returned error\n");
+ return -1;
+ }
+ printf("GPU memory allocated at 0x%p %zdB\n", ptr_2, buf_bytes);
+
+ ret = rte_gpu_mem_free(gpu_id, (uint8_t *)(ptr_1)+0x700);
+ if (ret < 0) {
+ printf("GPU memory 0x%p + 0x700 NOT freed because of memory address not recognized by driver\n", ptr_1);
+ } else {
+ fprintf(stderr, "rte_gpu_mem_free erroneously freed GPU memory 0x%p + 0x700\n", ptr_1);
+ return -1;
+ }
+
+ ret = rte_gpu_mem_free(gpu_id, ptr_2);
+ if (ret < 0) {
+ fprintf(stderr, "rte_gpu_mem_free returned error %d\n", ret);
+ return -1;
+ }
+ printf("GPU memory 0x%p freed\n", ptr_2);
+
+ ret = rte_gpu_mem_free(gpu_id, ptr_1);
+ if (ret < 0) {
+ fprintf(stderr, "rte_gpu_mem_free returned error %d\n", ret);
+ return -1;
+ }
+ printf("GPU memory 0x%p freed\n", ptr_1);
+
+ return 0;
+}
+
+static int
+register_cpu_memory(uint16_t gpu_id)
+{
+ void *ptr = NULL;
+ size_t buf_bytes = 1024;
+ int ret;
+
+ printf("\n=======> TEST: Register CPU memory\n");
+
+ /* Alloc memory on CPU visible from GPU 0 */
+ ptr = rte_zmalloc(NULL, buf_bytes, 0);
+ if (ptr == NULL) {
+ fprintf(stderr, "Failed to allocate CPU memory.\n");
+ return -1;
+ }
+
+ ret = rte_gpu_mem_register(gpu_id, buf_bytes, ptr);
+ if (ret < 0) {
+ fprintf(stderr, "rte_gpu_mem_register CPU memory returned error %d\n", ret);
+ return -1;
+ }
+ printf("CPU memory registered at 0x%p %zdB\n", ptr, buf_bytes);
+
+ ret = rte_gpu_mem_unregister(gpu_id, (uint8_t *)(ptr)+0x700);
+ if (ret < 0) {
+ printf("CPU memory 0x%p + 0x700 NOT unregistered because of memory address not recognized by driver\n", ptr);
+ } else {
+ fprintf(stderr, "rte_gpu_mem_free erroneously freed GPU memory 0x%p + 0x700\n", ptr);
+ return -1;
+ }
+ printf("CPU memory 0x%p unregistered\n", ptr);
+
+ ret = rte_gpu_mem_unregister(gpu_id, ptr);
+ if (ret < 0) {
+ fprintf(stderr, "rte_gpu_mem_unregister returned error %d\n", ret);
+ return -1;
+ }
+ printf("CPU memory 0x%p unregistered\n", ptr);
+
+ return 0;
+}
+
int
main(int argc, char **argv)
{
}
printf("\n\n");
+ if (nb_gpus == 0) {
+ fprintf(stderr, "Need at least one GPU on the system to run the example\n");
+ return EXIT_FAILURE;
+ }
+
+ gpu_id = 0;
+
+ /**
+ * Memory tests
+ */
+ alloc_gpu_memory(gpu_id);
+ register_cpu_memory(gpu_id);
+
/* clean up the EAL */
rte_eal_cleanup();
printf("Bye...\n");