diff options
| -rw-r--r-- | dpdk/dpdk-16.04_patches/0030-net-enic-fix-possible-Rx-corruption.patch | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/dpdk/dpdk-16.04_patches/0030-net-enic-fix-possible-Rx-corruption.patch b/dpdk/dpdk-16.04_patches/0030-net-enic-fix-possible-Rx-corruption.patch new file mode 100644 index 00000000..6bb043eb --- /dev/null +++ b/dpdk/dpdk-16.04_patches/0030-net-enic-fix-possible-Rx-corruption.patch @@ -0,0 +1,47 @@ +From cee88bcfd49cbf142c13ee7b6d2e77166c80bb48 Mon Sep 17 00:00:00 2001 +From: John Daley <johndale@cisco.com> +Date: Tue, 19 Jul 2016 13:41:14 -0700 +Subject: [PATCH] net/enic: fix possible Rx corruption + +Initialize the mbuf data offset to RTE_PKTMBUF_HEADROOM as the +enic takes ownership of them. If allocated mbufs had some offset +other than RTE_PKTMBUF_HEADROOM, the application would read mbuf +data starting at the wrong place and misinterpret the packet. + +Fixes: 856d7ba7ed22 ("net/enic: support scattered Rx") + +Reviewed-by: Nelson Escobar <neescoba@cisco.com> +Signed-off-by: John Daley <johndale@cisco.com> +--- + drivers/net/enic/enic_main.c | 1 + + drivers/net/enic/enic_rxtx.c | 2 +- + 2 files changed, 2 insertions(+), 1 deletion(-) + +diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c +index 8cedebf..774fcb1 100644 +--- a/drivers/net/enic/enic_main.c ++++ b/drivers/net/enic/enic_main.c +@@ -328,6 +328,7 @@ enic_alloc_rx_queue_mbufs(struct enic *enic, struct vnic_rq *rq) + return -ENOMEM; + } + ++ mb->data_off = RTE_PKTMBUF_HEADROOM; + dma_addr = (dma_addr_t)(mb->buf_physaddr + RTE_PKTMBUF_HEADROOM); + rq_enet_desc_enc(rqd, dma_addr, + (rq->is_sop ? RQ_ENET_TYPE_ONLY_SOP +diff --git a/drivers/net/enic/enic_rxtx.c b/drivers/net/enic/enic_rxtx.c +index c68bbfb..60f5062 100644 +--- a/drivers/net/enic/enic_rxtx.c ++++ b/drivers/net/enic/enic_rxtx.c +@@ -317,7 +317,7 @@ enic_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, + ciflags = enic_cq_rx_desc_ciflags((struct cq_enet_rq_desc *) &cqd); + + /* Push descriptor for newly allocated mbuf */ +- ++ nmb->data_off = RTE_PKTMBUF_HEADROOM; + dma_addr = (dma_addr_t)(nmb->buf_physaddr + RTE_PKTMBUF_HEADROOM); + rq_enet_desc_enc(rqd_ptr, dma_addr, + (rq->is_sop ? RQ_ENET_TYPE_ONLY_SOP +-- +2.7.0 + |