[dpdk-dev] [PATCH v4 11/15] mbuf: rename physical address to IOVA

[Thomas Monjalon <thomas@monjalon.net>]

From: Santosh Shukla <santosh.shukla@caviumnetworks.com>

Rename buf_physaddr to buf_iova.
Keep the deprecated name in an anonymous union to avoid breaking
the API.

Signed-off-by: Santosh Shukla <santosh.shukla@caviumnetworks.com>
Reviewed-by: Anatoly Burakov <anatoly.burakov@intel.com>
Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
---
 app/test-crypto-perf/cperf_test_common.c |  4 ++--
 doc/guides/prog_guide/img/mbuf1.svg      |  2 +-
 drivers/bus/fslmc/portal/dpaa2_hw_pvt.h  |  2 +-
 drivers/crypto/dpaa_sec/dpaa_sec.c       |  4 ++--
 drivers/net/ark/ark_ethdev_rx.c          |  8 ++++----
 drivers/net/bnx2x/bnx2x_rxtx.c           |  4 ++--
 drivers/net/bnxt/bnxt_ring.h             |  2 +-
 drivers/net/cxgbe/sge.c                  |  4 ++--
 drivers/net/dpaa/dpaa_rxtx.c             |  6 +++---
 drivers/net/ena/ena_ethdev.c             |  6 +++---
 drivers/net/enic/enic_main.c             |  2 +-
 drivers/net/enic/enic_rxtx.c             |  6 +++---
 drivers/net/fm10k/fm10k.h                |  4 ++--
 drivers/net/fm10k/fm10k_rxtx_vec.c       |  4 ++--
 drivers/net/i40e/i40e_rxtx_vec_altivec.c |  4 ++--
 drivers/net/i40e/i40e_rxtx_vec_neon.c    |  6 +++---
 drivers/net/i40e/i40e_rxtx_vec_sse.c     |  6 +++---
 drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c  |  6 +++---
 drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c   |  6 +++---
 drivers/net/nfp/nfp_net.c                |  2 +-
 drivers/net/virtio/virtio_ethdev.c       |  2 +-
 drivers/net/virtio/virtqueue.h           |  2 +-
 lib/librte_kni/rte_kni.c                 |  2 +-
 lib/librte_mbuf/rte_mbuf.c               |  6 +++---
 lib/librte_mbuf/rte_mbuf.h               | 18 +++++++++++-------
 lib/librte_vhost/virtio_net.c            |  2 +-
 test/test/test_mbuf.c                    |  2 +-
 27 files changed, 63 insertions(+), 59 deletions(-)

diff --git a/app/test-crypto-perf/cperf_test_common.c b/app/test-crypto-perf/cperf_test_common.c
index 08b313f8b..84c5a3d76 100644
--- a/app/test-crypto-perf/cperf_test_common.c
+++ b/app/test-crypto-perf/cperf_test_common.c
@@ -50,7 +50,7 @@ fill_single_seg_mbuf(struct rte_mbuf *m, struct rte_mempool *mp,
 	/* start of buffer is after mbuf structure and priv data */
 	m->priv_size = 0;
 	m->buf_addr = (char *)m + mbuf_hdr_size;
-	m->buf_physaddr = rte_mempool_virt2iova(obj) +
+	m->buf_iova = rte_mempool_virt2iova(obj) +
 		mbuf_offset + mbuf_hdr_size;
 	m->buf_len = segment_sz;
 	m->data_len = segment_sz;
@@ -81,7 +81,7 @@ fill_multi_seg_mbuf(struct rte_mbuf *m, struct rte_mempool *mp,
 		/* start of buffer is after mbuf structure and priv data */
 		m->priv_size = 0;
 		m->buf_addr = (char *)m + mbuf_hdr_size;
-		m->buf_physaddr = next_seg_phys_addr;
+		m->buf_iova = next_seg_phys_addr;
 		next_seg_phys_addr += mbuf_hdr_size + segment_sz;
 		m->buf_len = segment_sz;
 		m->data_len = segment_sz;
diff --git a/doc/guides/prog_guide/img/mbuf1.svg b/doc/guides/prog_guide/img/mbuf1.svg
index 5bd84d1bf..8750424e3 100644
--- a/doc/guides/prog_guide/img/mbuf1.svg
+++ b/doc/guides/prog_guide/img/mbuf1.svg
@@ -482,7 +482,7 @@
          sodipodi:role="line"
          x="187.85715"
          y="347.7193"
-         id="tspan5240">(m-&gt;buf_physaddr is the</tspan><tspan
+         id="tspan5240">(m-&gt;buf_iova is the</tspan><tspan
          sodipodi:role="line"
          x="187.85715"
          y="360.2193"
diff --git a/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h b/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h
index e14a9a975..c1b842f31 100644
--- a/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h
+++ b/drivers/bus/fslmc/portal/dpaa2_hw_pvt.h
@@ -314,7 +314,7 @@ static phys_addr_t dpaa2_mem_vtop(uint64_t vaddr)
  * These routines are called with help of below MACRO's
  */
 
-#define DPAA2_MBUF_VADDR_TO_IOVA(mbuf) ((mbuf)->buf_physaddr)
+#define DPAA2_MBUF_VADDR_TO_IOVA(mbuf) ((mbuf)->buf_iova)
 #define DPAA2_OP_VADDR_TO_IOVA(op) (op->phys_addr)
 
 /**
diff --git a/drivers/crypto/dpaa_sec/dpaa_sec.c b/drivers/crypto/dpaa_sec/dpaa_sec.c
index 30a2a3807..234c84f22 100644
--- a/drivers/crypto/dpaa_sec/dpaa_sec.c
+++ b/drivers/crypto/dpaa_sec/dpaa_sec.c
@@ -798,9 +798,9 @@ build_cipher_auth(struct rte_crypto_op *op, dpaa_sec_session *ses)
 	uint8_t *IV_ptr = rte_crypto_op_ctod_offset(op, uint8_t *,
 			ses->iv.offset);
 
-	src_start_addr = sym->m_src->buf_physaddr + sym->m_src->data_off;
+	src_start_addr = sym->m_src->buf_iova + sym->m_src->data_off;
 	if (sym->m_dst)
-		dst_start_addr = sym->m_dst->buf_physaddr + sym->m_dst->data_off;
+		dst_start_addr = sym->m_dst->buf_iova + sym->m_dst->data_off;
 	else
 		dst_start_addr = src_start_addr;
 
diff --git a/drivers/net/ark/ark_ethdev_rx.c b/drivers/net/ark/ark_ethdev_rx.c
index 4e39d9557..2ffaeac3e 100644
--- a/drivers/net/ark/ark_ethdev_rx.c
+++ b/drivers/net/ark/ark_ethdev_rx.c
@@ -499,22 +499,22 @@ eth_ark_rx_seed_mbufs(struct ark_rx_queue *queue)
 	case 0:
 		while (count != nb) {
 			queue->paddress_q[seed_m++] =
-				(*mbufs++)->buf_physaddr;
+				(*mbufs++)->buf_iova;
 			count++;
 		/* FALLTHROUGH */
 	case 3:
 		queue->paddress_q[seed_m++] =
-			(*mbufs++)->buf_physaddr;
+			(*mbufs++)->buf_iova;
 		count++;
 		/* FALLTHROUGH */
 	case 2:
 		queue->paddress_q[seed_m++] =
-			(*mbufs++)->buf_physaddr;
+			(*mbufs++)->buf_iova;
 		count++;
 		/* FALLTHROUGH */
 	case 1:
 		queue->paddress_q[seed_m++] =
-			(*mbufs++)->buf_physaddr;
+			(*mbufs++)->buf_iova;
 		count++;
 		/* FALLTHROUGH */
 
diff --git a/drivers/net/bnx2x/bnx2x_rxtx.c b/drivers/net/bnx2x/bnx2x_rxtx.c
index 99d7d285c..7c3324a6d 100644
--- a/drivers/net/bnx2x/bnx2x_rxtx.c
+++ b/drivers/net/bnx2x/bnx2x_rxtx.c
@@ -140,7 +140,7 @@ bnx2x_dev_rx_queue_setup(struct rte_eth_dev *dev,
 			return -ENOMEM;
 		}
 		rxq->sw_ring[idx] = mbuf;
-		rxq->rx_ring[idx] = mbuf->buf_physaddr;
+		rxq->rx_ring[idx] = mbuf->buf_iova;
 	}
 	rxq->pkt_first_seg = NULL;
 	rxq->pkt_last_seg = NULL;
@@ -400,7 +400,7 @@ bnx2x_recv_pkts(void *p_rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 
 		rx_mb = rxq->sw_ring[bd_cons];
 		rxq->sw_ring[bd_cons] = new_mb;
-		rxq->rx_ring[bd_prod] = new_mb->buf_physaddr;
+		rxq->rx_ring[bd_prod] = new_mb->buf_iova;
 
 		rx_pref = NEXT_RX_BD(bd_cons) & MAX_RX_BD(rxq);
 		rte_prefetch0(rxq->sw_ring[rx_pref]);
diff --git a/drivers/net/bnxt/bnxt_ring.h b/drivers/net/bnxt/bnxt_ring.h
index 6d1eb5888..ac1ce2a57 100644
--- a/drivers/net/bnxt/bnxt_ring.h
+++ b/drivers/net/bnxt/bnxt_ring.h
@@ -41,7 +41,7 @@
 #define RING_NEXT(ring, idx)		(((idx) + 1) & (ring)->ring_mask)
 
 #define RTE_MBUF_DATA_DMA_ADDR(mb) \
-	((uint64_t)((mb)->buf_physaddr + (mb)->data_off))
+	((uint64_t)((mb)->buf_iova + (mb)->data_off))
 
 #define DB_IDX_MASK						0xffffff
 #define DB_IDX_VALID						(0x1 << 26)
diff --git a/drivers/net/cxgbe/sge.c b/drivers/net/cxgbe/sge.c
index 9f915158a..fc10d9585 100644
--- a/drivers/net/cxgbe/sge.c
+++ b/drivers/net/cxgbe/sge.c
@@ -149,7 +149,7 @@ static int map_mbuf(struct rte_mbuf *mbuf, dma_addr_t *addr)
 	struct rte_mbuf *m = mbuf;
 
 	for (; m; m = m->next, addr++) {
-		*addr = m->buf_physaddr + rte_pktmbuf_headroom(m);
+		*addr = m->buf_iova + rte_pktmbuf_headroom(m);
 		if (*addr == 0)
 			goto out_err;
 	}
@@ -423,7 +423,7 @@ static unsigned int refill_fl_usembufs(struct adapter *adap, struct sge_fl *q,
 		mbuf->nb_segs = 1;
 		mbuf->port = rxq->rspq.port_id;
 
-		mapping = (dma_addr_t)RTE_ALIGN(mbuf->buf_physaddr +
+		mapping = (dma_addr_t)RTE_ALIGN(mbuf->buf_iova +
 						mbuf->data_off,
 						adap->sge.fl_align);
 		mapping |= buf_size_idx;
diff --git a/drivers/net/dpaa/dpaa_rxtx.c b/drivers/net/dpaa/dpaa_rxtx.c
index a5a0db714..41e57f2e2 100644
--- a/drivers/net/dpaa/dpaa_rxtx.c
+++ b/drivers/net/dpaa/dpaa_rxtx.c
@@ -77,7 +77,7 @@
 		(_fd)->opaque = QM_FD_CONTIG << DPAA_FD_FORMAT_SHIFT; \
 		(_fd)->opaque |= ((_mbuf)->data_off) << DPAA_FD_OFFSET_SHIFT; \
 		(_fd)->opaque |= (_mbuf)->pkt_len; \
-		(_fd)->addr = (_mbuf)->buf_physaddr; \
+		(_fd)->addr = (_mbuf)->buf_iova; \
 		(_fd)->bpid = _bpid; \
 	} while (0)
 
@@ -514,7 +514,7 @@ dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
 
 	sgt = temp->buf_addr + temp->data_off;
 	fd->format = QM_FD_SG;
-	fd->addr = temp->buf_physaddr;
+	fd->addr = temp->buf_iova;
 	fd->offset = temp->data_off;
 	fd->bpid = bpid;
 	fd->length20 = mbuf->pkt_len;
@@ -523,7 +523,7 @@ dpaa_eth_mbuf_to_sg_fd(struct rte_mbuf *mbuf,
 		sg_temp = &sgt[i++];
 		sg_temp->opaque = 0;
 		sg_temp->val = 0;
-		sg_temp->addr = cur_seg->buf_physaddr;
+		sg_temp->addr = cur_seg->buf_iova;
 		sg_temp->offset = cur_seg->data_off;
 		sg_temp->length = cur_seg->data_len;
 		if (RTE_MBUF_DIRECT(cur_seg)) {
diff --git a/drivers/net/ena/ena_ethdev.c b/drivers/net/ena/ena_ethdev.c
index a62c39875..22db8951f 100644
--- a/drivers/net/ena/ena_ethdev.c
+++ b/drivers/net/ena/ena_ethdev.c
@@ -1167,7 +1167,7 @@ static int ena_populate_rx_queue(struct ena_ring *rxq, unsigned int count)
 
 		rte_prefetch0(mbufs[((next_to_use + 4) & ring_mask)]);
 		/* prepare physical address for DMA transaction */
-		ebuf.paddr = mbuf->buf_physaddr + RTE_PKTMBUF_HEADROOM;
+		ebuf.paddr = mbuf->buf_iova + RTE_PKTMBUF_HEADROOM;
 		ebuf.len = mbuf->buf_len - RTE_PKTMBUF_HEADROOM;
 		/* pass resource to device */
 		rc = ena_com_add_single_rx_desc(rxq->ena_com_io_sq,
@@ -1726,7 +1726,7 @@ static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 		 * consideration pushed header
 		 */
 		if (mbuf->data_len > ena_tx_ctx.header_len) {
-			ebuf->paddr = mbuf->buf_physaddr +
+			ebuf->paddr = mbuf->buf_iova +
 				      mbuf->data_off +
 				      ena_tx_ctx.header_len;
 			ebuf->len = mbuf->data_len - ena_tx_ctx.header_len;
@@ -1735,7 +1735,7 @@ static uint16_t eth_ena_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 		}
 
 		while ((mbuf = mbuf->next) != NULL) {
-			ebuf->paddr = mbuf->buf_physaddr + mbuf->data_off;
+			ebuf->paddr = mbuf->buf_iova + mbuf->data_off;
 			ebuf->len = mbuf->data_len;
 			ebuf++;
 			tx_info->num_of_bufs++;
diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c
index 3a2a8d182..8af0ccd3c 100644
--- a/drivers/net/enic/enic_main.c
+++ b/drivers/net/enic/enic_main.c
@@ -316,7 +316,7 @@ enic_alloc_rx_queue_mbufs(struct enic *enic, struct vnic_rq *rq)
 		}
 
 		mb->data_off = RTE_PKTMBUF_HEADROOM;
-		dma_addr = (dma_addr_t)(mb->buf_physaddr
+		dma_addr = (dma_addr_t)(mb->buf_iova
 			   + RTE_PKTMBUF_HEADROOM);
 		rq_enet_desc_enc(rqd, dma_addr,
 				(rq->is_sop ? RQ_ENET_TYPE_ONLY_SOP
diff --git a/drivers/net/enic/enic_rxtx.c b/drivers/net/enic/enic_rxtx.c
index 1d43bde9a..74450ea71 100644
--- a/drivers/net/enic/enic_rxtx.c
+++ b/drivers/net/enic/enic_rxtx.c
@@ -386,7 +386,7 @@ enic_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 
 		/* Push descriptor for newly allocated mbuf */
 		nmb->data_off = RTE_PKTMBUF_HEADROOM;
-		dma_addr = (dma_addr_t)(nmb->buf_physaddr +
+		dma_addr = (dma_addr_t)(nmb->buf_iova +
 					RTE_PKTMBUF_HEADROOM);
 		rq_enet_desc_enc(rqd_ptr, dma_addr,
 				(rq->is_sop ? RQ_ENET_TYPE_ONLY_SOP
@@ -578,7 +578,7 @@ uint16_t enic_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 		vlan_id = 0;
 		vlan_tag_insert = 0;
 		bus_addr = (dma_addr_t)
-			   (tx_pkt->buf_physaddr + tx_pkt->data_off);
+			   (tx_pkt->buf_iova + tx_pkt->data_off);
 
 		descs = (struct wq_enet_desc *)wq->ring.descs;
 		desc_p = descs + head_idx;
@@ -630,7 +630,7 @@ uint16_t enic_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 				if (tx_pkt->next == NULL)
 					eop = 1;
 				desc_p = descs + head_idx;
-				bus_addr = (dma_addr_t)(tx_pkt->buf_physaddr
+				bus_addr = (dma_addr_t)(tx_pkt->buf_iova
 					   + tx_pkt->data_off);
 				wq_enet_desc_enc((struct wq_enet_desc *)
 						 &desc_tmp, bus_addr, data_len,
diff --git a/drivers/net/fm10k/fm10k.h b/drivers/net/fm10k/fm10k.h
index 594dca4f9..1273aa865 100644
--- a/drivers/net/fm10k/fm10k.h
+++ b/drivers/net/fm10k/fm10k.h
@@ -253,11 +253,11 @@ struct fm10k_txq_ops {
 };
 
 #define MBUF_DMA_ADDR(mb) \
-	((uint64_t) ((mb)->buf_physaddr + (mb)->data_off))
+	((uint64_t) ((mb)->buf_iova + (mb)->data_off))
 
 /* enforce 512B alignment on default Rx DMA addresses */
 #define MBUF_DMA_ADDR_DEFAULT(mb) \
-	((uint64_t) RTE_ALIGN(((mb)->buf_physaddr + RTE_PKTMBUF_HEADROOM),\
+	((uint64_t) RTE_ALIGN(((mb)->buf_iova + RTE_PKTMBUF_HEADROOM),\
 			FM10K_RX_DATABUF_ALIGN))
 
 static inline void fifo_reset(struct fifo *fifo, uint32_t len)
diff --git a/drivers/net/fm10k/fm10k_rxtx_vec.c b/drivers/net/fm10k/fm10k_rxtx_vec.c
index edc4ae16e..ce042d3d2 100644
--- a/drivers/net/fm10k/fm10k_rxtx_vec.c
+++ b/drivers/net/fm10k/fm10k_rxtx_vec.c
@@ -330,8 +330,8 @@ fm10k_rxq_rearm(struct fm10k_rx_queue *rxq)
 		p1 = (uintptr_t)&mb1->rearm_data;
 		*(uint64_t *)p1 = rxq->mbuf_initializer;
 
-		/* load buf_addr(lo 64bit) and buf_physaddr(hi 64bit) */
-		RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, buf_physaddr) !=
+		/* load buf_addr(lo 64bit) and buf_iova(hi 64bit) */
+		RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, buf_iova) !=
 				offsetof(struct rte_mbuf, buf_addr) + 8);
 		vaddr0 = _mm_loadu_si128((__m128i *)&mb0->buf_addr);
 		vaddr1 = _mm_loadu_si128((__m128i *)&mb1->buf_addr);
diff --git a/drivers/net/i40e/i40e_rxtx_vec_altivec.c b/drivers/net/i40e/i40e_rxtx_vec_altivec.c
index 5ab9445ed..5e4e472a3 100644
--- a/drivers/net/i40e/i40e_rxtx_vec_altivec.c
+++ b/drivers/net/i40e/i40e_rxtx_vec_altivec.c
@@ -100,7 +100,7 @@ i40e_rxq_rearm(struct i40e_rx_queue *rxq)
 		p1 = (uintptr_t)&mb1->rearm_data;
 		*(uint64_t *)p1 = rxq->mbuf_initializer;
 
-		/* load buf_addr(lo 64bit) and buf_physaddr(hi 64bit) */
+		/* load buf_addr(lo 64bit) and buf_iova(hi 64bit) */
 		vaddr0 = vec_ld(0, (vector unsigned long *)&mb0->buf_addr);
 		vaddr1 = vec_ld(0, (vector unsigned long *)&mb1->buf_addr);
 
@@ -538,7 +538,7 @@ vtx1(volatile struct i40e_tx_desc *txdp,
 		((uint64_t)pkt->data_len << I40E_TXD_QW1_TX_BUF_SZ_SHIFT));
 
 	vector unsigned long descriptor = (vector unsigned long){
-		pkt->buf_physaddr + pkt->data_off, high_qw};
+		pkt->buf_iova + pkt->data_off, high_qw};
 	*(vector unsigned long *)txdp = descriptor;
 }
 
diff --git a/drivers/net/i40e/i40e_rxtx_vec_neon.c b/drivers/net/i40e/i40e_rxtx_vec_neon.c
index d0e604068..12219274e 100644
--- a/drivers/net/i40e/i40e_rxtx_vec_neon.c
+++ b/drivers/net/i40e/i40e_rxtx_vec_neon.c
@@ -81,13 +81,13 @@ i40e_rxq_rearm(struct i40e_rx_queue *rxq)
 		mb0 = rxep[0].mbuf;
 		mb1 = rxep[1].mbuf;
 
-		paddr = mb0->buf_physaddr + RTE_PKTMBUF_HEADROOM;
+		paddr = mb0->buf_iova + RTE_PKTMBUF_HEADROOM;
 		dma_addr0 = vdupq_n_u64(paddr);
 
 		/* flush desc with pa dma_addr */
 		vst1q_u64((uint64_t *)&rxdp++->read, dma_addr0);
 
-		paddr = mb1->buf_physaddr + RTE_PKTMBUF_HEADROOM;
+		paddr = mb1->buf_iova + RTE_PKTMBUF_HEADROOM;
 		dma_addr1 = vdupq_n_u64(paddr);
 		vst1q_u64((uint64_t *)&rxdp++->read, dma_addr1);
 	}
@@ -515,7 +515,7 @@ vtx1(volatile struct i40e_tx_desc *txdp,
 			((uint64_t)flags  << I40E_TXD_QW1_CMD_SHIFT) |
 			((uint64_t)pkt->data_len << I40E_TXD_QW1_TX_BUF_SZ_SHIFT));
 
-	uint64x2_t descriptor = {pkt->buf_physaddr + pkt->data_off, high_qw};
+	uint64x2_t descriptor = {pkt->buf_iova + pkt->data_off, high_qw};
 	vst1q_u64((uint64_t *)txdp, descriptor);
 }
 
diff --git a/drivers/net/i40e/i40e_rxtx_vec_sse.c b/drivers/net/i40e/i40e_rxtx_vec_sse.c
index 86e16ddf9..9d2d1f837 100644
--- a/drivers/net/i40e/i40e_rxtx_vec_sse.c
+++ b/drivers/net/i40e/i40e_rxtx_vec_sse.c
@@ -86,8 +86,8 @@ i40e_rxq_rearm(struct i40e_rx_queue *rxq)
 		mb0 = rxep[0].mbuf;
 		mb1 = rxep[1].mbuf;
 
-		/* load buf_addr(lo 64bit) and buf_physaddr(hi 64bit) */
-		RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, buf_physaddr) !=
+		/* load buf_addr(lo 64bit) and buf_iova(hi 64bit) */
+		RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, buf_iova) !=
 				offsetof(struct rte_mbuf, buf_addr) + 8);
 		vaddr0 = _mm_loadu_si128((__m128i *)&mb0->buf_addr);
 		vaddr1 = _mm_loadu_si128((__m128i *)&mb1->buf_addr);
@@ -549,7 +549,7 @@ vtx1(volatile struct i40e_tx_desc *txdp,
 			((uint64_t)pkt->data_len << I40E_TXD_QW1_TX_BUF_SZ_SHIFT));
 
 	__m128i descriptor = _mm_set_epi64x(high_qw,
-				pkt->buf_physaddr + pkt->data_off);
+				pkt->buf_iova + pkt->data_off);
 	_mm_store_si128((__m128i *)txdp, descriptor);
 }
 
diff --git a/drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c b/drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c
index 18e3d199f..2e87ffa0a 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c
@@ -87,13 +87,13 @@ ixgbe_rxq_rearm(struct ixgbe_rx_queue *rxq)
 		 * Data to be rearmed is 6 bytes long.
 		 */
 		vst1_u8((uint8_t *)&mb0->rearm_data, p);
-		paddr = mb0->buf_physaddr + RTE_PKTMBUF_HEADROOM;
+		paddr = mb0->buf_iova + RTE_PKTMBUF_HEADROOM;
 		dma_addr0 = vsetq_lane_u64(paddr, zero, 0);
 		/* flush desc with pa dma_addr */
 		vst1q_u64((uint64_t *)&rxdp++->read, dma_addr0);
 
 		vst1_u8((uint8_t *)&mb1->rearm_data, p);
-		paddr = mb1->buf_physaddr + RTE_PKTMBUF_HEADROOM;
+		paddr = mb1->buf_iova + RTE_PKTMBUF_HEADROOM;
 		dma_addr1 = vsetq_lane_u64(paddr, zero, 0);
 		vst1q_u64((uint64_t *)&rxdp++->read, dma_addr1);
 	}
@@ -414,7 +414,7 @@ vtx1(volatile union ixgbe_adv_tx_desc *txdp,
 		struct rte_mbuf *pkt, uint64_t flags)
 {
 	uint64x2_t descriptor = {
-			pkt->buf_physaddr + pkt->data_off,
+			pkt->buf_iova + pkt->data_off,
 			(uint64_t)pkt->pkt_len << 46 | flags | pkt->data_len};
 
 	vst1q_u64((uint64_t *)&txdp->read, descriptor);
diff --git a/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c b/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c
index 158ccd91d..a3b5b6bfb 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c
@@ -86,8 +86,8 @@ ixgbe_rxq_rearm(struct ixgbe_rx_queue *rxq)
 		mb0 = rxep[0].mbuf;
 		mb1 = rxep[1].mbuf;
 
-		/* load buf_addr(lo 64bit) and buf_physaddr(hi 64bit) */
-		RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, buf_physaddr) !=
+		/* load buf_addr(lo 64bit) and buf_iova(hi 64bit) */
+		RTE_BUILD_BUG_ON(offsetof(struct rte_mbuf, buf_iova) !=
 				offsetof(struct rte_mbuf, buf_addr) + 8);
 		vaddr0 = _mm_loadu_si128((__m128i *)&(mb0->buf_addr));
 		vaddr1 = _mm_loadu_si128((__m128i *)&(mb1->buf_addr));
@@ -667,7 +667,7 @@ vtx1(volatile union ixgbe_adv_tx_desc *txdp,
 {
 	__m128i descriptor = _mm_set_epi64x((uint64_t)pkt->pkt_len << 46 |
 			flags | pkt->data_len,
-			pkt->buf_physaddr + pkt->data_off);
+			pkt->buf_iova + pkt->data_off);
 	_mm_store_si128((__m128i *)&txdp->read, descriptor);
 }
 
diff --git a/drivers/net/nfp/nfp_net.c b/drivers/net/nfp/nfp_net.c
index 7f1a026ac..e141627cc 100644
--- a/drivers/net/nfp/nfp_net.c
+++ b/drivers/net/nfp/nfp_net.c
@@ -106,7 +106,7 @@ static uint16_t nfp_net_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 #define NFP_QCP_MAX_ADD	0x7f
 
 #define RTE_MBUF_DMA_ADDR_DEFAULT(mb) \
-	(uint64_t)((mb)->buf_physaddr + RTE_PKTMBUF_HEADROOM)
+	(uint64_t)((mb)->buf_iova + RTE_PKTMBUF_HEADROOM)
 
 /* nfp_qcp_ptr - Read or Write Pointer of a queue */
 enum nfp_qcp_ptr {
diff --git a/drivers/net/virtio/virtio_ethdev.c b/drivers/net/virtio/virtio_ethdev.c
index c6756ed3f..d2576d5e0 100644
--- a/drivers/net/virtio/virtio_ethdev.c
+++ b/drivers/net/virtio/virtio_ethdev.c
@@ -493,7 +493,7 @@ virtio_init_queue(struct rte_eth_dev *dev, uint16_t vtpci_queue_idx)
 	 * VIRTIO_MBUF_DATA_DMA_ADDR in virtqueue.h for more information.
 	 */
 	if (!hw->virtio_user_dev)
-		vq->offset = offsetof(struct rte_mbuf, buf_physaddr);
+		vq->offset = offsetof(struct rte_mbuf, buf_iova);
 	else {
 		vq->vq_ring_mem = (uintptr_t)mz->addr;
 		vq->offset = offsetof(struct rte_mbuf, buf_addr);
diff --git a/drivers/net/virtio/virtqueue.h b/drivers/net/virtio/virtqueue.h
index 235f8c525..6c90d3779 100644
--- a/drivers/net/virtio/virtqueue.h
+++ b/drivers/net/virtio/virtqueue.h
@@ -79,7 +79,7 @@ struct rte_mbuf;
 #define VIRTIO_MBUF_ADDR(mb, vq) \
 	((uint64_t)(*(uintptr_t *)((uintptr_t)(mb) + (vq)->offset)))
 #else
-#define VIRTIO_MBUF_ADDR(mb, vq) ((mb)->buf_physaddr)
+#define VIRTIO_MBUF_ADDR(mb, vq) ((mb)->buf_iova)
 #endif
 
 /**
diff --git a/lib/librte_kni/rte_kni.c b/lib/librte_kni/rte_kni.c
index 8c483c1f4..5ee38e9ad 100644
--- a/lib/librte_kni/rte_kni.c
+++ b/lib/librte_kni/rte_kni.c
@@ -456,7 +456,7 @@ va2pa(struct rte_mbuf *m)
 {
 	return (void *)((unsigned long)m -
 			((unsigned long)m->buf_addr -
-			 (unsigned long)m->buf_physaddr));
+			 (unsigned long)m->buf_iova));
 }
 
 static void
diff --git a/lib/librte_mbuf/rte_mbuf.c b/lib/librte_mbuf/rte_mbuf.c
index c96943522..71c65a042 100644
--- a/lib/librte_mbuf/rte_mbuf.c
+++ b/lib/librte_mbuf/rte_mbuf.c
@@ -134,7 +134,7 @@ rte_pktmbuf_init(struct rte_mempool *mp,
 	/* start of buffer is after mbuf structure and priv data */
 	m->priv_size = priv_size;
 	m->buf_addr = (char *)m + mbuf_size;
-	m->buf_physaddr = rte_mempool_virt2iova(m) + mbuf_size;
+	m->buf_iova = rte_mempool_virt2iova(m) + mbuf_size;
 	m->buf_len = (uint16_t)buf_len;
 
 	/* keep some headroom between start of buffer and data */
@@ -211,7 +211,7 @@ rte_mbuf_sanity_check(const struct rte_mbuf *m, int is_header)
 	/* generic checks */
 	if (m->pool == NULL)
 		rte_panic("bad mbuf pool\n");
-	if (m->buf_physaddr == 0)
+	if (m->buf_iova == 0)
 		rte_panic("bad phys addr\n");
 	if (m->buf_addr == NULL)
 		rte_panic("bad virt addr\n");
@@ -244,7 +244,7 @@ rte_pktmbuf_dump(FILE *f, const struct rte_mbuf *m, unsigned dump_len)
 	__rte_mbuf_sanity_check(m, 1);
 
 	fprintf(f, "dump mbuf at %p, phys=%"PRIx64", buf_len=%u\n",
-	       m, (uint64_t)m->buf_physaddr, (unsigned)m->buf_len);
+	       m, (uint64_t)m->buf_iova, (unsigned)m->buf_len);
 	fprintf(f, "  pkt_len=%"PRIu32", ol_flags=%"PRIx64", nb_segs=%u, "
 	       "in_port=%u\n", m->pkt_len, m->ol_flags,
 	       (unsigned)m->nb_segs, (unsigned)m->port);
diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index 0a555e2d5..7a4634fdd 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -432,7 +432,11 @@ struct rte_mbuf {
 	 * same mbuf cacheline0 layout for 32-bit and 64-bit. This makes
 	 * working on vector drivers easier.
 	 */
-	phys_addr_t buf_physaddr __rte_aligned(sizeof(phys_addr_t));
+	RTE_STD_C11
+	union {
+		rte_iova_t buf_iova;
+		rte_iova_t buf_physaddr; /**< deprecated */
+	} __rte_aligned(sizeof(rte_iova_t));
 
 	/* next 8 bytes are initialised on RX descriptor rearm */
 	MARKER64 rearm_data;
@@ -631,7 +635,7 @@ static inline uint16_t rte_pktmbuf_priv_size(struct rte_mempool *mp);
 static inline phys_addr_t
 rte_mbuf_data_dma_addr(const struct rte_mbuf *mb)
 {
-	return mb->buf_physaddr + mb->data_off;
+	return mb->buf_iova + mb->data_off;
 }
 
 /**
@@ -649,7 +653,7 @@ rte_mbuf_data_dma_addr(const struct rte_mbuf *mb)
 static inline phys_addr_t
 rte_mbuf_data_dma_addr_default(const struct rte_mbuf *mb)
 {
-	return mb->buf_physaddr + RTE_PKTMBUF_HEADROOM;
+	return mb->buf_iova + RTE_PKTMBUF_HEADROOM;
 }
 
 /**
@@ -840,7 +844,7 @@ rte_mbuf_sanity_check(const struct rte_mbuf *m, int is_header);
  * For standard needs, prefer rte_pktmbuf_alloc().
  *
  * The caller can expect that the following fields of the mbuf structure
- * are initialized: buf_addr, buf_physaddr, buf_len, refcnt=1, nb_segs=1,
+ * are initialized: buf_addr, buf_iova, buf_len, refcnt=1, nb_segs=1,
  * next=NULL, pool, priv_size. The other fields must be initialized
  * by the caller.
  *
@@ -1250,7 +1254,7 @@ static inline void rte_pktmbuf_attach(struct rte_mbuf *mi, struct rte_mbuf *m)
 
 	rte_mbuf_refcnt_update(md, 1);
 	mi->priv_size = m->priv_size;
-	mi->buf_physaddr = m->buf_physaddr;
+	mi->buf_iova = m->buf_iova;
 	mi->buf_addr = m->buf_addr;
 	mi->buf_len = m->buf_len;
 
@@ -1298,7 +1302,7 @@ static inline void rte_pktmbuf_detach(struct rte_mbuf *m)
 
 	m->priv_size = priv_size;
 	m->buf_addr = (char *)m + mbuf_size;
-	m->buf_physaddr = rte_mempool_virt2iova(m) + mbuf_size;
+	m->buf_iova = rte_mempool_virt2iova(m) + mbuf_size;
 	m->buf_len = (uint16_t)buf_len;
 	rte_pktmbuf_reset_headroom(m);
 	m->data_len = 0;
@@ -1569,7 +1573,7 @@ static inline struct rte_mbuf *rte_pktmbuf_lastseg(struct rte_mbuf *m)
  *   The offset into the data to calculate address from.
  */
 #define rte_pktmbuf_mtophys_offset(m, o) \
-	(phys_addr_t)((m)->buf_physaddr + (m)->data_off + (o))
+	(rte_iova_t)((m)->buf_iova + (m)->data_off + (o))
 
 /**
  * A macro that returns the physical address that points to the start of the
diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c
index 3c6f1a531..6fee16e55 100644
--- a/lib/librte_vhost/virtio_net.c
+++ b/lib/librte_vhost/virtio_net.c
@@ -978,7 +978,7 @@ copy_desc_to_mbuf(struct virtio_net *dev, struct vhost_virtqueue *vq,
 			cur->data_len = cpy_len;
 			cur->data_off = 0;
 			cur->buf_addr = (void *)(uintptr_t)desc_addr;
-			cur->buf_physaddr = hpa;
+			cur->buf_iova = hpa;
 
 			/*
 			 * In zero copy mode, one mbuf can only reference data
diff --git a/test/test/test_mbuf.c b/test/test/test_mbuf.c
index 20e146b01..414509b20 100644
--- a/test/test/test_mbuf.c
+++ b/test/test/test_mbuf.c
@@ -906,7 +906,7 @@ test_failing_mbuf_sanity_check(struct rte_mempool *pktmbuf_pool)
 	}
 
 	badbuf = *buf;
-	badbuf.buf_physaddr = 0;
+	badbuf.buf_iova = 0;
 	if (verify_mbuf_check_panics(&badbuf)) {
 		printf("Error with bad-physaddr mbuf test\n");
 		return -1;
-- 
2.14.2