[PATCH] test/dma: test vchan reconfiguration

[PATCH] test/dma: test vchan reconfiguration

[Gowrishankar Muthukrishnan]

Reconfigure vchan count and validate if new count is effective.

Signed-off-by: Gowrishankar Muthukrishnan <gmuthukrishn@marvell.com>
---
 app/test/test_dmadev_api.c | 51 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/app/test/test_dmadev_api.c b/app/test/test_dmadev_api.c
index a1646472b0..5cdd87e162 100644
--- a/app/test/test_dmadev_api.c
+++ b/app/test/test_dmadev_api.c
@@ -355,6 +355,56 @@ test_dma_start_stop(void)
 	return TEST_SUCCESS;
 }
 
+static int
+test_dma_reconfigure(void)
+{
+	struct rte_dma_vchan_conf vchan_conf = { 0 };
+	struct rte_dma_conf dev_conf = { 0 };
+	struct rte_dma_info dev_info = { 0 };
+	uint16_t cfg_vchans;
+	int ret;
+
+	ret = rte_dma_info_get(test_dev_id, &dev_info);
+	RTE_TEST_ASSERT_SUCCESS(ret, "Failed to obtain device info, %d", ret);
+
+	/* At least two vchans required for the test */
+	if (dev_info.max_vchans < 2)
+		return TEST_SKIPPED;
+
+	/* Setup one vchan for later test */
+	ret = setup_one_vchan();
+	RTE_TEST_ASSERT_SUCCESS(ret, "Failed to setup one vchan, %d", ret);
+
+	ret = rte_dma_start(test_dev_id);
+	RTE_TEST_ASSERT_SUCCESS(ret, "Failed to start, %d", ret);
+
+	ret = rte_dma_stop(test_dev_id);
+	RTE_TEST_ASSERT_SUCCESS(ret, "Failed to stop, %d", ret);
+
+	/* Check reconfigure and vchan setup after device stopped */
+	cfg_vchans = dev_conf.nb_vchans = (dev_info.max_vchans - 1);
+
+	ret = rte_dma_configure(test_dev_id, &dev_conf);
+	RTE_TEST_ASSERT_SUCCESS(ret, "Failed to configure, %d", ret);
+
+	vchan_conf.direction = RTE_DMA_DIR_MEM_TO_MEM;
+	vchan_conf.nb_desc = dev_info.min_desc;
+	ret = rte_dma_vchan_setup(test_dev_id, 0, &vchan_conf);
+	RTE_TEST_ASSERT_SUCCESS(ret, "Failed to setup vchan, %d", ret);
+
+	ret = rte_dma_start(test_dev_id);
+	RTE_TEST_ASSERT_SUCCESS(ret, "Failed to start, %d", ret);
+
+	ret = rte_dma_info_get(test_dev_id, &dev_info);
+	RTE_TEST_ASSERT_SUCCESS(ret, "Failed to obtain device info, %d", ret);
+	RTE_TEST_ASSERT_EQUAL(dev_info.nb_vchans, cfg_vchans, "incorrect reconfiguration");
+
+	ret = rte_dma_stop(test_dev_id);
+	RTE_TEST_ASSERT_SUCCESS(ret, "Failed to stop, %d", ret);
+
+	return TEST_SUCCESS;
+}
+
 static int
 test_dma_stats(void)
 {
@@ -567,6 +617,7 @@ test_dma_api(uint16_t dev_id)
 	DMA_TEST_API_RUN(test_dma_configure);
 	DMA_TEST_API_RUN(test_dma_vchan_setup);
 	DMA_TEST_API_RUN(test_dma_start_stop);
+	DMA_TEST_API_RUN(test_dma_reconfigure);
 	DMA_TEST_API_RUN(test_dma_stats);
 	DMA_TEST_API_RUN(test_dma_dump);
 	DMA_TEST_API_RUN(test_dma_completed);
-- 
2.25.1