diff options
| author |   Dave Barach <dave@barachs.net> | 2016-06-09 09:50:17 -0400 |
|---|---|---|
| committer | Dave Barach <dave@barachs.net> | 2016-06-09 09:50:38 -0400 |
| commit | cf2aa43150c0551cc4d488c55d6673b611aede87 (patch) | |
| tree | bd8baf0e2664ab31514025147cd285db9cd279c0 /dpdk | |
| parent | 363db8809514dad0dc657c55aaf79139a45830f8 (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-x | dpdk/dpdk-16.04_patches/0017-i40e-Set-PKT_RX_VLAN_PKT-flag-for-VLAN-packets.patch | 41 |
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 - |