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From: zhouyangchao <zhouyates@gmail.com>
To: dev@dpdk.org;
Cc: harish.patil@cavium.com; rasesh.mody@cavium.com;
	harish.patil@cavium.com; rasesh.mody@cavium.com;
Subject: [PATCH] net/bnx2x: reserve enough headroom for mbuf prepend
Date: Tue, 6 Feb 2018 19:21:48 +0800	[thread overview]
Message-ID: <6fd6d52e-a756-45ad-9666-60fa7ca676cd@zyc-PC.local> (raw)

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

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;
-- 
2.9.0.windows.1

             reply	other threads:[~2018-02-06 11:22 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-02-06 11:21 zhouyangchao [this message]
2018-02-06 13:44 ` [PATCH] net/bnx2x: reserve enough headroom for mbuf prepend Ferruh Yigit
2018-03-05 15:28 ` Ferruh Yigit
2018-03-08  5:57   ` zhouyangchao
2018-04-20 10:31     ` Ferruh Yigit
2018-04-23 17:10     ` Patil, Harish
2018-04-24 12:38       ` Ferruh Yigit
  -- strict thread matches above, loose matches on Subject: below --
2018-02-06 11:21 zhouyangchao
2018-02-06 11:21 zhouyangchao
2018-02-06 11:20 zhouyangchao
2018-02-06 11:20 zhouyangchao
2018-02-06 11:20 zhouyangchao

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