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authorDave Barach <dave@barachs.net>2016-06-09 09:50:17 -0400
committerDave Barach <dave@barachs.net>2016-06-09 09:50:38 -0400
commitcf2aa43150c0551cc4d488c55d6673b611aede87 (patch)
treebd8baf0e2664ab31514025147cd285db9cd279c0 /dpdk
parent363db8809514dad0dc657c55aaf79139a45830f8 (diff)
VPP-106: fix performance hit due to unprefetched data read
Change-Id: I1325b60b6deadcb51631e178011a31ee70c06cc7 Signed-off-by: Dave Barach <dave@barachs.net>
Diffstat (limited to 'dpdk')
-rwxr-xr-xdpdk/dpdk-16.04_patches/0017-i40e-Set-PKT_RX_VLAN_PKT-flag-for-VLAN-packets.patch41
1 files changed, 0 insertions, 41 deletions
diff --git a/dpdk/dpdk-16.04_patches/0017-i40e-Set-PKT_RX_VLAN_PKT-flag-for-VLAN-packets.patch b/dpdk/dpdk-16.04_patches/0017-i40e-Set-PKT_RX_VLAN_PKT-flag-for-VLAN-packets.patch
deleted file mode 100755
index f8f69b0f274..00000000000
--- a/dpdk/dpdk-16.04_patches/0017-i40e-Set-PKT_RX_VLAN_PKT-flag-for-VLAN-packets.patch
+++ /dev/null
@@ -1,41 +0,0 @@
-From af8bfd030fdaa0acb3222296ab7a24bc4ac196f5 Mon Sep 17 00:00:00 2001
-From: Georgi Savov <gsavov@cisco.com>
-Date: Tue, 10 May 2016 10:59:55 -0400
-Subject: [PATCH 30/31] i40e Set PKT_RX_VLAN_PKT flag for VLAN packets
-
----
- drivers/net/i40e/i40e_rxtx.c | 18 +++++++++++++++++-
- 1 file changed, 17 insertions(+), 1 deletion(-)
-
-diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c
-index 39d94ec..07341df 100644
---- a/drivers/net/i40e/i40e_rxtx.c
-+++ b/drivers/net/i40e/i40e_rxtx.c
-@@ -99,7 +99,23 @@ i40e_rxd_to_vlan_tci(struct rte_mbuf *mb, volatile union i40e_rx_desc *rxdp)
- PMD_RX_LOG(DEBUG, "Descriptor l2tag1: %u",
- rte_le_to_cpu_16(rxdp->wb.qword0.lo_dword.l2tag1));
- } else {
-- mb->vlan_tci = 0;
-+ struct ether_hdr *eth_hdr = rte_pktmbuf_mtod(mb, struct ether_hdr *);
-+ u16 eth_type = eth_hdr->ether_type;
-+
-+ // The i40e firmware does not flag VLAN tagged packets if
-+ // VLAN stripping is disabled so we need to check the
-+ // ethernet header to find out if the received packet
-+ // is a VLAN packet
-+ if ((eth_type == rte_be_to_cpu_16(ETHER_TYPE_VLAN)) ||
-+ (eth_type == rte_be_to_cpu_16(ETHER_TYPE_VLAN_AD)) ||
-+ (eth_type == rte_be_to_cpu_16(ETHER_TYPE_VLAN_9100)) ||
-+ (eth_type == rte_be_to_cpu_16(ETHER_TYPE_VLAN_9200))) {
-+ struct vlan_hdr *vhdr = (struct vlan_hdr *)(eth_hdr+1);
-+ mb->ol_flags |= PKT_RX_VLAN_PKT;
-+ mb->vlan_tci = rte_be_to_cpu_16(vhdr->vlan_tci);
-+ } else {
-+ mb->vlan_tci = 0;
-+ }
- }
- #ifndef RTE_LIBRTE_I40E_16BYTE_RX_DESC
- if (rte_le_to_cpu_16(rxdp->wb.qword2.ext_status) &
---
-1.9.1
-