[dpdk-dev] [PATCH 1/2] net/bnxt: fix headroom initialization
Olivier Matz
olivier.matz at 6wind.com
Thu Dec 14 15:28:24 CET 2017
When allocating a new mbuf for Rx, the value of m->data_off should not
be reset to its default value (RTE_PKTMBUF_HEADROOM), instead of reusing
the previous undefined value, which could cause the packet to have a too
small or too high headroom.
Fixes: 2eb53b134aae ("net/bnxt: add initial Rx code")
Cc: stable at dpdk.org
Signed-off-by: Olivier Matz <olivier.matz at 6wind.com>
---
drivers/net/bnxt/bnxt_rxr.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/net/bnxt/bnxt_rxr.c b/drivers/net/bnxt/bnxt_rxr.c
index 188df362e..3fff4d437 100644
--- a/drivers/net/bnxt/bnxt_rxr.c
+++ b/drivers/net/bnxt/bnxt_rxr.c
@@ -75,7 +75,7 @@ static inline int bnxt_alloc_rx_data(struct bnxt_rx_queue *rxq,
rx_buf->mbuf = data;
- rxbd->addr = rte_cpu_to_le_64(RTE_MBUF_DATA_DMA_ADDR(rx_buf->mbuf));
+ rxbd->addr = rte_cpu_to_le_64(rte_mbuf_data_dma_addr_default(data));
return 0;
}
@@ -102,7 +102,7 @@ static inline int bnxt_alloc_ag_data(struct bnxt_rx_queue *rxq,
rx_buf->mbuf = data;
- rxbd->addr = rte_cpu_to_le_64(RTE_MBUF_DATA_DMA_ADDR(rx_buf->mbuf));
+ rxbd->addr = rte_cpu_to_le_64(rte_mbuf_data_dma_addr_default(data));
return 0;
}
@@ -123,7 +123,7 @@ static inline void bnxt_reuse_rx_mbuf(struct bnxt_rx_ring_info *rxr,
prod_bd = &rxr->rx_desc_ring[prod];
- prod_bd->addr = rte_cpu_to_le_64(RTE_MBUF_DATA_DMA_ADDR(mbuf));
+ prod_bd->addr = rte_cpu_to_le_64(rte_mbuf_data_dma_addr_default(mbuf));
rxr->rx_prod = prod;
}
@@ -442,6 +442,7 @@ static int bnxt_rx_pkt(struct rte_mbuf **rx_pkt,
rte_prefetch0(mbuf);
+ mbuf->data_off = RTE_PKTMBUF_HEADROOM;
mbuf->nb_segs = 1;
mbuf->next = NULL;
mbuf->pkt_len = rxcmp->len;
--
2.11.0
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