The jumbo frame uses the 'RTE_ETHER_MAX_LEN' as boundary condition, but the Ether overhead is larger than 18 when it supports VLAN tag. That will cause the jumbo flag rx offload is wrong when MTU size is 'RTE_ETHER_MTU'.
This fix will change the boundary condition with 'RTE_ETHER_MTU'. Fixes: e16408499412 ("net/dpaa2: configure jumbo frames") Signed-off-by: Steve Yang <stevex.y...@intel.com> --- drivers/net/dpaa2/dpaa2_ethdev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/dpaa2/dpaa2_ethdev.c b/drivers/net/dpaa2/dpaa2_ethdev.c index ab6863300e..b92f4c1a7f 100644 --- a/drivers/net/dpaa2/dpaa2_ethdev.c +++ b/drivers/net/dpaa2/dpaa2_ethdev.c @@ -1420,7 +1420,7 @@ dpaa2_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu) if (mtu < RTE_ETHER_MIN_MTU || frame_size > DPAA2_MAX_RX_PKT_LEN) return -EINVAL; - if (frame_size > RTE_ETHER_MAX_LEN) + if (mtu > RTE_ETHER_MTU) dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME; else -- 2.17.1