diff --git a/app/test/test_dmadev.c b/app/test/test_dmadev.c
index 9e8e101f40..fe62e98af8 100644
--- a/app/test/test_dmadev.c
+++ b/app/test/test_dmadev.c
@@ -110,8 +110,8 @@ do_multi_copies(int16_t dev_id, uint16_t vchan,
 		for (j = 0; j < COPY_LEN/sizeof(uint64_t); j++)
 			src_data[j] = rte_rand();
 
-		if (rte_dma_copy(dev_id, vchan, srcs[i]->buf_iova + srcs[i]->data_off,
-				dsts[i]->buf_iova + dsts[i]->data_off, COPY_LEN, 0) != id_count++)
+		if (rte_dma_copy(dev_id, vchan, rte_mbuf_data_iova(srcs[i]),
+				 rte_mbuf_data_iova(dsts[i]), COPY_LEN, 0) != id_count++)
 			ERR_RETURN("Error with rte_dma_copy for buffer %u\n", i);
 	}
 	rte_dma_submit(dev_id, vchan);
@@ -317,9 +317,8 @@ test_failure_in_full_burst(int16_t dev_id, uint16_t vchan, bool fence,
 	rte_dma_stats_get(dev_id, vchan, &baseline); /* get a baseline set of stats */
 	for (i = 0; i < COMP_BURST_SZ; i++) {
 		int id = rte_dma_copy(dev_id, vchan,
-				(i == fail_idx ? 0 : (srcs[i]->buf_iova + srcs[i]->data_off)),
-				dsts[i]->buf_iova + dsts[i]->data_off,
-				COPY_LEN, OPT_FENCE(i));
+				      (i == fail_idx ? 0 : rte_mbuf_data_iova(srcs[i])),
+				      rte_mbuf_data_iova(dsts[i]), COPY_LEN, OPT_FENCE(i));
 		if (id < 0)
 			ERR_RETURN("Error with rte_dma_copy for buffer %u\n", i);
 		if (i == fail_idx)
@@ -407,9 +406,8 @@ test_individual_status_query_with_failure(int16_t dev_id, uint16_t vchan, bool f
 
 	for (j = 0; j < COMP_BURST_SZ; j++) {
 		int id = rte_dma_copy(dev_id, vchan,
-				(j == fail_idx ? 0 : (srcs[j]->buf_iova + srcs[j]->data_off)),
-				dsts[j]->buf_iova + dsts[j]->data_off,
-				COPY_LEN, OPT_FENCE(j));
+				      (j == fail_idx ? 0 : rte_mbuf_data_iova(srcs[j])),
+				      rte_mbuf_data_iova(dsts[j]), COPY_LEN, OPT_FENCE(j));
 		if (id < 0)
 			ERR_RETURN("Error with rte_dma_copy for buffer %u\n", j);
 		if (j == fail_idx)
@@ -470,9 +468,8 @@ test_single_item_status_query_with_failure(int16_t dev_id, uint16_t vchan,
 
 	for (j = 0; j < COMP_BURST_SZ; j++) {
 		int id = rte_dma_copy(dev_id, vchan,
-				(j == fail_idx ? 0 : (srcs[j]->buf_iova + srcs[j]->data_off)),
-				dsts[j]->buf_iova + dsts[j]->data_off,
-				COPY_LEN, 0);
+				      (j == fail_idx ? 0 : rte_mbuf_data_iova(srcs[j])),
+				      rte_mbuf_data_iova(dsts[j]), COPY_LEN, 0);
 		if (id < 0)
 			ERR_RETURN("Error with rte_dma_copy for buffer %u\n", j);
 		if (j == fail_idx)
@@ -529,15 +526,14 @@ test_multi_failure(int16_t dev_id, uint16_t vchan, struct rte_mbuf **srcs, struc
 
 	/* enqueue and gather completions in one go */
 	for (j = 0; j < COMP_BURST_SZ; j++) {
-		uintptr_t src = srcs[j]->buf_iova + srcs[j]->data_off;
+		uintptr_t src = rte_mbuf_data_iova(srcs[j]);
 		/* set up for failure if the current index is anywhere is the fails array */
 		for (i = 0; i < num_fail; i++)
 			if (j == fail[i])
 				src = 0;
 
-		int id = rte_dma_copy(dev_id, vchan,
-				src, dsts[j]->buf_iova + dsts[j]->data_off,
-				COPY_LEN, 0);
+		int id = rte_dma_copy(dev_id, vchan, src, rte_mbuf_data_iova(dsts[j]),
+				      COPY_LEN, 0);
 		if (id < 0)
 			ERR_RETURN("Error with rte_dma_copy for buffer %u\n", j);
 	}
@@ -565,15 +561,14 @@ test_multi_failure(int16_t dev_id, uint16_t vchan, struct rte_mbuf **srcs, struc
 
 	/* enqueue and gather completions in bursts, but getting errors one at a time */
 	for (j = 0; j < COMP_BURST_SZ; j++) {
-		uintptr_t src = srcs[j]->buf_iova + srcs[j]->data_off;
+		uintptr_t src = rte_mbuf_data_iova(srcs[j]);
 		/* set up for failure if the current index is anywhere is the fails array */
 		for (i = 0; i < num_fail; i++)
 			if (j == fail[i])
 				src = 0;
 
-		int id = rte_dma_copy(dev_id, vchan,
-				src, dsts[j]->buf_iova + dsts[j]->data_off,
-				COPY_LEN, 0);
+		int id = rte_dma_copy(dev_id, vchan, src, rte_mbuf_data_iova(dsts[j]),
+				      COPY_LEN, 0);
 		if (id < 0)
 			ERR_RETURN("Error with rte_dma_copy for buffer %u\n", j);
 	}