[dpdk-dev] net/bnx2x: reserve enough headroom for mbuf prepend

Message ID 1e5723f6-a2d8-4a60-9be9-7c30983dda6a@zyc-PC.local
State Rejected, archived
Headers show

Checks

Context Check Description
ci/Intel-compilation success Compilation OK
ci/checkpatch warning coding style issues

Commit Message

Yangchao Zhou Feb. 6, 2018, 11:20 a.m.
Signed-off-by: Yangchao Zhou <zhouyates@gmail.com>
---
 drivers/net/bnx2x/bnx2x_rxtx.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

Patch

diff --git a/drivers/net/bnx2x/bnx2x_rxtx.c b/drivers/net/bnx2x/bnx2x_rxtx.c
index a0d4ac9..d8a3225 100644
--- a/drivers/net/bnx2x/bnx2x_rxtx.c
+++ b/drivers/net/bnx2x/bnx2x_rxtx.c
@@ -140,7 +140,8 @@  bnx2x_dev_rx_queue_setup(struct rte_eth_dev *dev,
 			return -ENOMEM;
 		}
 		rxq->sw_ring[idx] = mbuf;
-		rxq->rx_ring[idx] = mbuf->buf_iova;
+		rxq->rx_ring[idx] = 
+			rte_cpu_to_le_64(rte_mbuf_data_iova_default(mbuf));
 	}
 	rxq->pkt_first_seg = NULL;
 	rxq->pkt_last_seg = NULL;
@@ -400,7 +401,8 @@  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_iova;
+		rxq->rx_ring[bd_prod] = 
+			rte_cpu_to_le_64(rte_mbuf_data_iova_default(new_mb));
 
 		rx_pref = NEXT_RX_BD(bd_cons) & MAX_RX_BD(rxq);
 		rte_prefetch0(rxq->sw_ring[rx_pref]);
@@ -409,7 +411,7 @@  bnx2x_recv_pkts(void *p_rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
 			rte_prefetch0(&rxq->sw_ring[rx_pref]);
 		}
 
-		rx_mb->data_off = pad;
+		rx_mb->data_off = pad + RTE_PKTMBUF_HEADROOM;
 		rx_mb->nb_segs = 1;
 		rx_mb->next = NULL;
 		rx_mb->pkt_len = rx_mb->data_len = len;