Function test_dmadev_instance

dpdk/app/test/test_dmadev.c:913–1026

}

static int
test_dmadev_instance(int16_t dev_id)
{
#define CHECK_ERRS    true
	struct rte_dma_stats stats;
	struct rte_dma_info info;
	const struct rte_dma_conf conf = { .nb_vchans = 1};
	const struct rte_dma_vchan_conf qconf = {
			.direction = RTE_DMA_DIR_MEM_TO_MEM,
			.nb_desc = TEST_RINGSIZE,
	};
	const int vchan = 0;
	int ret;

	ret = rte_dma_info_get(dev_id, &info);
	if (ret != 0)
		ERR_RETURN("Error with rte_dma_info_get()\n");

	printf("\n### Test dmadev instance %u [%s]\n",
			dev_id, info.dev_name);

	if (info.max_vchans < 1)
		ERR_RETURN("Error, no channels available on device id %u\n", dev_id);

	if (rte_dma_configure(dev_id, &conf) != 0)
		ERR_RETURN("Error with rte_dma_configure()\n");

	if (rte_dma_vchan_setup(dev_id, vchan, &qconf) < 0)
		ERR_RETURN("Error with queue configuration\n");

	ret = rte_dma_info_get(dev_id, &info);
	if (ret != 0 || info.nb_vchans != 1)
		ERR_RETURN("Error, no configured queues reported on device id %u\n", dev_id);

	if (rte_dma_start(dev_id) != 0)
		ERR_RETURN("Error with rte_dma_start()\n");

	if (rte_dma_stats_get(dev_id, vchan, &stats) != 0)
		ERR_RETURN("Error with rte_dma_stats_get()\n");

	if (rte_dma_burst_capacity(dev_id, vchan) < 32)
		ERR_RETURN("Error: Device does not have sufficient burst capacity to run tests");

	if (stats.completed != 0 || stats.submitted != 0 || stats.errors != 0)
		ERR_RETURN("Error device stats are not all zero: completed = %"PRIu64", "
				"submitted = %"PRIu64", errors = %"PRIu64"\n",
				stats.completed, stats.submitted, stats.errors);
	id_count = 0;

	/* create a mempool for running tests */
	pool = rte_pktmbuf_pool_create("TEST_DMADEV_POOL",
			TEST_RINGSIZE * 2, /* n == num elements */
			32,  /* cache size */
			0,   /* priv size */
			2048, /* data room size */
			info.numa_node);
	if (pool == NULL)
		ERR_RETURN("Error with mempool creation\n");