[PATCH 2/4] app/test: support test last-idx when no DMA completed

[Chengwen Feng]

If no DMA request is completed, the ring_idx of the last completed
operation need returned by last_idx parameter. This patch adds
testcase for it.

Signed-off-by: Chengwen Feng <fengchengwen at huawei.com>
---
 app/test/test_dmadev.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/app/test/test_dmadev.c b/app/test/test_dmadev.c
index 2b097e0f47..a7651a486f 100644
--- a/app/test/test_dmadev.c
+++ b/app/test/test_dmadev.c
@@ -177,6 +177,7 @@ do_multi_copies(int16_t dev_id, uint16_t vchan,
 static int
 test_enqueue_copies(int16_t dev_id, uint16_t vchan)
 {
+	enum rte_dma_status_code status;
 	unsigned int i;
 	uint16_t id;
 
@@ -215,6 +216,20 @@ test_enqueue_copies(int16_t dev_id, uint16_t vchan)
 			ERR_RETURN("Error:incorrect job id received, %u [expected %u]\n",
 					id, id_count);
 
+		/* check for completed and id when no job done */
+		if (rte_dma_completed(dev_id, vchan, 1, &id, NULL) != 0)
+			ERR_RETURN("Error with rte_dma_completed when no job done\n");
+		if (id != id_count)
+			ERR_RETURN("Error:incorrect job id received when no job done, %u [expected %u]\n",
+					id, id_count);
+
+		/* check for completed_status and id when no job done */
+		if (rte_dma_completed_status(dev_id, vchan, 1, &id, &status) != 0)
+			ERR_RETURN("Error with rte_dma_completed_status when no job done\n");
+		if (id != id_count)
+			ERR_RETURN("Error:incorrect job id received when no job done, %u [expected %u]\n",
+					id, id_count);
+
 		rte_pktmbuf_free(src);
 		rte_pktmbuf_free(dst);
 
-- 
2.33.0