From: Kevin Laatz <kevin.la...@intel.com>
For dma devices which support the fill operation, run unit tests to
verify fill behaviour is correct.
Signed-off-by: Kevin Laatz <kevin.la...@intel.com>
Signed-off-by: Bruce Richardson <bruce.richard...@intel.com>
Reviewed-by: Conor Walsh <conor.wa...@intel.com>
---
app/test/test_dmadev.c | 49 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 49 insertions(+)
diff --git a/app/test/test_dmadev.c b/app/test/test_dmadev.c
index d5885ba10e..9f555f456d 100644
--- a/app/test/test_dmadev.c
+++ b/app/test/test_dmadev.c
@@ -624,7 +624,51 @@ test_completion_handling(int dev_id, uint16_t vchan)
{
return test_completion_status(dev_id, vchan, false) /*
without fences */
|| test_completion_status(dev_id, vchan, true); /*
with fences */
+}
+
+static int
+test_enqueue_fill(int dev_id, uint16_t vchan)
+{
+ const unsigned int lengths[] = {8, 64, 1024, 50, 100, 89};
+ struct rte_mbuf *dst;
+ char *dst_data;
+ uint64_t pattern = 0xfedcba9876543210;
+ unsigned int i, j;
+
+ dst = rte_pktmbuf_alloc(pool);
+ if (dst == NULL)
+ ERR_RETURN("Failed to allocate mbuf\n");
+ dst_data = rte_pktmbuf_mtod(dst, char *);
+
+ for (i = 0; i < RTE_DIM(lengths); i++) {
+ /* reset dst_data */
+ memset(dst_data, 0, rte_pktmbuf_data_len(dst));
+
+ /* perform the fill operation */
+ int id = rte_dma_fill(dev_id, vchan, pattern,
+ rte_pktmbuf_iova(dst), lengths[i],
RTE_DMA_OP_FLAG_SUBMIT);
+ if (id < 0)
+ ERR_RETURN("Error with rte_dma_fill\n");
+ await_hw(dev_id, vchan);
+
+ if (rte_dma_completed(dev_id, vchan, 1, NULL, NULL) != 1)
+ ERR_RETURN("Error: fill operation failed (length:
%u)\n", lengths[i]);
+ /* check the data from the fill operation is correct */
+ for (j = 0; j < lengths[i]; j++) {
+ char pat_byte = ((char *)&pattern)[j % 8];
+ if (dst_data[j] != pat_byte)
+ ERR_RETURN("Error with fill operation (lengths
= %u): got (%x), not (%x)\n",
+ lengths[i], dst_data[j],
pat_byte);
+ }
+ /* check that the data after the fill operation was not written
to */
+ for (; j < rte_pktmbuf_data_len(dst); j++)
+ if (dst_data[j] != 0)
+ ERR_RETURN("Error, fill operation wrote too far
(lengths = %u): got (%x), not (%x)\n",
+ lengths[i], dst_data[j], 0);
+ }
+ rte_pktmbuf_free(dst);
+ return 0;
}
static int
@@ -697,6 +741,11 @@ test_dmadev_instance(uint16_t dev_id)
dev_id, vchan, !CHECK_ERRS) < 0)
goto err;
+ if ((info.dev_capa & RTE_DMA_CAPA_OPS_FILL) == 0)
+ printf("DMA Dev %u: No device fill support, skipping fill
tests\n", dev_id);
+ else if (runtest("fill", test_enqueue_fill, 1, dev_id, vchan,
CHECK_ERRS) < 0)
+ goto err;
+
rte_mempool_free(pool);
rte_dma_stop(dev_id);
rte_dma_stats_reset(dev_id, vchan);
--
2.30.2
