[PATCH 2/2] test/dma: support auto adapt ringsize

[Chengwen Feng]

The default ringsize is 512, some DMA devices may not support, this
commit support auto adapt ringsize.

Signed-off-by: Chengwen Feng <fengchengwen at huawei.com>
---
 app/test/test_dmadev.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/app/test/test_dmadev.c b/app/test/test_dmadev.c
index 482d564f7a..e1a919cd81 100644
--- a/app/test/test_dmadev.c
+++ b/app/test/test_dmadev.c
@@ -1135,7 +1135,7 @@ test_dmadev_setup(void)
 	int16_t dev_id = test_dev_id;
 	struct rte_dma_stats stats;
 	const struct rte_dma_conf conf = { .nb_vchans = 1};
-	const struct rte_dma_vchan_conf qconf = {
+	struct rte_dma_vchan_conf qconf = {
 			.direction = RTE_DMA_DIR_MEM_TO_MEM,
 			.nb_desc = TEST_RINGSIZE,
 	};
@@ -1151,6 +1151,10 @@ test_dmadev_setup(void)
 	if (rte_dma_configure(dev_id, &conf) != 0)
 		ERR_RETURN("Error with rte_dma_configure()\n");
 
+	if (qconf.nb_desc < info.min_desc)
+		qconf.nb_desc = info.min_desc;
+	if (qconf.nb_desc > info.max_desc)
+		qconf.nb_desc = info.max_desc;
 	if (rte_dma_vchan_setup(dev_id, vchan, &qconf) < 0)
 		ERR_RETURN("Error with queue configuration\n");
 
-- 
2.17.1