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From 2c75df63533e1eaa97c24f41bbd6a5b131ff52ce Mon Sep 17 00:00:00 2001
From: Georgi Savov <gsavov@cisco.com>
Date: Tue, 10 May 2016 10:59:55 -0400
Subject: [PATCH 17/17] 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 4d35d83..a2bb9a9 100644
--- a/drivers/net/i40e/i40e_rxtx.c
+++ b/drivers/net/i40e/i40e_rxtx.c
@@ -94,7 +94,23 @@ 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) &
--
2.7.4
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