diff options
Diffstat (limited to 'dpdk/dpdk-2.2.0_patches/0025-enic-fix-misalignment-of-Rx-mbuf-data.patch')
| -rw-r--r-- | dpdk/dpdk-2.2.0_patches/0025-enic-fix-misalignment-of-Rx-mbuf-data.patch | 55 |
1 files changed, 0 insertions, 55 deletions
diff --git a/dpdk/dpdk-2.2.0_patches/0025-enic-fix-misalignment-of-Rx-mbuf-data.patch b/dpdk/dpdk-2.2.0_patches/0025-enic-fix-misalignment-of-Rx-mbuf-data.patch deleted file mode 100644 index 69ca3f31087..00000000000 --- a/dpdk/dpdk-2.2.0_patches/0025-enic-fix-misalignment-of-Rx-mbuf-data.patch +++ /dev/null @@ -1,55 +0,0 @@ -From 454eb71eca1912e32a509c738a99a340cc2488cf Mon Sep 17 00:00:00 2001 -From: John Daley <johndale@cisco.com> -Date: Mon, 25 Apr 2016 16:24:53 -0700 -Subject: [PATCH 2/3] enic: fix misalignment of Rx mbuf data - -Data DMA used m->data_off of uninitialized mbufs instead of -RTE_PKTMBUF_HEADROOM, potentially causing Rx data to be -placed at the wrong alignment in the mbuf. - -Fixes: 947d860c821f ("enic: improve Rx performance") -Signed-off-by: John Daley <johndale@cisco.com> ---- - drivers/net/enic/enic_main.c | 5 +++-- - drivers/net/enic/enic_rx.c | 6 ++++-- - 2 files changed, 7 insertions(+), 4 deletions(-) - -diff --git a/drivers/net/enic/enic_main.c b/drivers/net/enic/enic_main.c -index be4e9e5..646d87f 100644 ---- a/drivers/net/enic/enic_main.c -+++ b/drivers/net/enic/enic_main.c -@@ -354,10 +354,11 @@ enic_alloc_rx_queue_mbufs(struct enic *enic, struct vnic_rq *rq) - return -ENOMEM; - } - -- dma_addr = (dma_addr_t)(mb->buf_physaddr + mb->data_off); -+ dma_addr = (dma_addr_t)(mb->buf_physaddr -+ + RTE_PKTMBUF_HEADROOM); - - rq_enet_desc_enc(rqd, dma_addr, RQ_ENET_TYPE_ONLY_SOP, -- mb->buf_len); -+ mb->buf_len - RTE_PKTMBUF_HEADROOM); - rq->mbuf_ring[i] = mb; - } - -diff --git a/drivers/net/enic/enic_rx.c b/drivers/net/enic/enic_rx.c -index 232987a..39bb55c 100644 ---- a/drivers/net/enic/enic_rx.c -+++ b/drivers/net/enic/enic_rx.c -@@ -314,9 +314,11 @@ enic_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, - + rx_id); - - /* Push descriptor for newly allocated mbuf */ -- dma_addr = (dma_addr_t)(nmb->buf_physaddr + nmb->data_off); -+ dma_addr = (dma_addr_t)(nmb->buf_physaddr -+ + RTE_PKTMBUF_HEADROOM); - rqd_ptr->address = rte_cpu_to_le_64(dma_addr); -- rqd_ptr->length_type = cpu_to_le16(nmb->buf_len); -+ rqd_ptr->length_type = cpu_to_le16(nmb->buf_len -+ - RTE_PKTMBUF_HEADROOM); - - /* Fill in the rest of the mbuf */ - rxmb->data_off = RTE_PKTMBUF_HEADROOM; --- -2.7.0 - |