[v1,11/12] net/sfc: fix the jumbo frame flag condition for mtu set
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Commit Message
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: ff6a1197c3b1 ("net/sfc: convert to new Rx offload API")
Signed-off-by: Steve Yang <stevex.yang@intel.com>
---
drivers/net/sfc/sfc_ethdev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
@@ -1017,7 +1017,7 @@ sfc_dev_set_mtu(struct rte_eth_dev *dev, uint16_t mtu)
* The driver does not use it, but other PMDs update jumbo frame
* flag and max_rx_pkt_len when MTU is set.
*/
- if (mtu > RTE_ETHER_MAX_LEN) {
+ if (mtu > RTE_ETHER_MTU) {
struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
rxmode->offloads |= DEV_RX_OFFLOAD_JUMBO_FRAME;
}