[dpdk-dev] [PATCH v1 10/12] net/qede: fix the jumbo frame flag condition for mtu set

[Steve Yang]

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: 200645ac7909 ("net/qede: set MTU")

Signed-off-by: Steve Yang <stevex.yang at intel.com>
---
 drivers/net/qede/qede_ethdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/qede/qede_ethdev.c b/drivers/net/qede/qede_ethdev.c
index 549013557c..d6f0f0a493 100644
--- a/drivers/net/qede/qede_ethdev.c
+++ b/drivers/net/qede/qede_ethdev.c
@@ -2367,7 +2367,7 @@ static int qede_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
 			fp->rxq->rx_buf_size = rc;
 		}
 	}
-	if (max_rx_pkt_len > RTE_ETHER_MAX_LEN)
+	if (mtu > RTE_ETHER_MTU)
 		dev->data->dev_conf.rxmode.offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
 	else
 		dev->data->dev_conf.rxmode.offloads &= ~DEV_RX_OFFLOAD_JUMBO_FRAME;
-- 
2.17.1