The jumbo frame uses the 'RTE_ETHER_MAX_LEN' as boundary condition, but the Ether overhead is larger than 18 when it supports dual VLAN tags. 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: 0e2efd02db58 ("net/octeontx2: add MTU set operation") Signed-off-by: Steve Yang <stevex.y...@intel.com> --- drivers/net/octeontx2/otx2_ethdev_ops.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/octeontx2/otx2_ethdev_ops.c b/drivers/net/octeontx2/otx2_ethdev_ops.c index b36d37b9f7..170b8fbd91 100644 --- a/drivers/net/octeontx2/otx2_ethdev_ops.c +++ b/drivers/net/octeontx2/otx2_ethdev_ops.c @@ -58,7 +58,7 @@ otx2_nix_mtu_set(struct rte_eth_dev *eth_dev, uint16_t mtu) if (rc) return rc; - if (frame_size > RTE_ETHER_MAX_LEN) + if (mtu > RTE_ETHER_MTU) dev->rx_offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME; else dev->rx_offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME; -- 2.17.1