[dpdk-dev] net/i40e: fix vlan packets drop

[Xiao Zhang]

vlan packets with ip length bigger then 1496 will not be received by
i40e due to wrong packets size checking. This patch fixes the issue by
correcting the maximum frame size during checking.

Fixes: 35b2d13fd6fd ("net: add rte prefix to ether defines")
Cc: stable at dpdk.org

Signed-off-by: Xiao Zhang <xiao.zhang at intel.com>
---
 drivers/net/i40e/i40e_ethdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 2ca14da..156d67b 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -12103,7 +12103,7 @@ i40e_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
 		return -EBUSY;
 	}
 
-	if (frame_size > RTE_ETHER_MAX_LEN)
+	if (frame_size > RTE_ETHER_MAX_LEN + I40E_VLAN_TAG_SIZE * 2)
 		dev_data->dev_conf.rxmode.offloads |=
 			DEV_RX_OFFLOAD_JUMBO_FRAME;
 	else
-- 
2.7.4