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net/bnxt: fix headroom initialization

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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: 2eb53b134a ("net/bnxt: add initial Rx code")
Cc: stable@dpdk.org

Signed-off-by: Olivier Matz <olivier.matz@6wind.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
This commit is contained in:
Olivier Matz 2018-01-03 11:32:25 +01:00 committed by Ferruh Yigit
parent 42b8835358
commit 35906acbf3
1 changed files with 4 additions and 3 deletions
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7
drivers/net/bnxt/bnxt_rxr.c
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@ -75,7 +75,7 @@ static inline int bnxt_alloc_rx_data(struct bnxt_rx_queue *rxq,
rx_buf->mbuf = mbuf;
rxbd->addr = rte_cpu_to_le_64(rte_mbuf_data_iova(mbuf));
rxbd->addr = rte_cpu_to_le_64(rte_mbuf_data_iova_default(mbuf));
return 0;
}
@ -102,7 +102,7 @@ static inline int bnxt_alloc_ag_data(struct bnxt_rx_queue *rxq,
rx_buf->mbuf = mbuf;
rxbd->addr = rte_cpu_to_le_64(rte_mbuf_data_iova(mbuf));
rxbd->addr = rte_cpu_to_le_64(rte_mbuf_data_iova_default(mbuf));
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_iova(mbuf));
prod_bd->addr = rte_cpu_to_le_64(rte_mbuf_data_iova_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;