From 35906acbf34daa32469fa63d759846057f36e6fb Mon Sep 17 00:00:00 2001 From: Olivier Matz Date: Wed, 3 Jan 2018 11:32:25 +0100 Subject: [PATCH] net/bnxt: fix headroom initialization 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@dpdk.org Signed-off-by: Olivier Matz Acked-by: Ajit Khaparde --- 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 89114ccb7d..82c93d6dcf 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 = 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; -- 2.20.1