Tested with IOAT and IDXD, both pass unit tests.

Tested-by: Kevin Laatz <kevin.la...@intel.com>

On 27/05/2022 04:40, Chengwen Feng wrote:
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 <fengcheng...@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);

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