diff mbox series

[v4,14/22] net/sfc: fix the jumbo frame flag condition for mtu set

Message ID 20210118070428.36998-15-stevex.yang@intel.com (mailing list archive)
State Accepted, archived
Delegated to: Ferruh Yigit
Headers show
Series fix rx packets dropped issue | expand

Checks

Context Check Description
ci/checkpatch success coding style OK

Commit Message

Steve Yang Jan. 18, 2021, 7:04 a.m. UTC
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',
that perhaps impacts the cases of the jumbo frame related.

Fixes: ff6a1197c3b1 ("net/sfc: convert to new Rx offload API")

Cc: Andrew Rybchenko <andrew.rybchenko@oktetlabs.ru>

Signed-off-by: Steve Yang <stevex.yang@intel.com>
---
 drivers/net/sfc/sfc_ethdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/net/sfc/sfc_ethdev.c b/drivers/net/sfc/sfc_ethdev.c
index 93fc7baa0d..f2f5336435 100644
--- a/drivers/net/sfc/sfc_ethdev.c
+++ b/drivers/net/sfc/sfc_ethdev.c
@@ -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;
 	}