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net/ipn3ke: fix jumbo frame flag condition for MTU set

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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' and
overhead, that perhaps impacts the cases of the jumbo frame related.

Fixes: 70d6b7f550 ("net/ipn3ke: add representor")
Cc: stable@dpdk.org

Signed-off-by: Steve Yang <stevex.yang@intel.com>
Reviewed-by: Rosen Xu <rosen.xu@intel.com>
This commit is contained in:
Steve Yang 2021-01-18 07:04:16 +00:00 committed by Ferruh Yigit
parent 14801aa3fb
commit 6f4edbadea
2 changed files with 2 additions and 1 deletions
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1
drivers/net/ipn3ke/ipn3ke_ethdev.h
View File

@ -640,6 +640,7 @@ ipn3ke_tm_ops_get(struct rte_eth_dev *ethdev,
*/
#define IPN3KE_ETH_OVERHEAD \
(RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN + IPN3KE_VLAN_TAG_SIZE * 2)
#define IPN3KE_ETH_MAX_LEN (RTE_ETHER_MTU + IPN3KE_ETH_OVERHEAD)
#define IPN3KE_MAC_FRAME_SIZE_MAX 9728
#define IPN3KE_MAC_RX_FRAME_MAXLENGTH 0x00AE

2
drivers/net/ipn3ke/ipn3ke_representor.c
View File

@ -2801,7 +2801,7 @@ ipn3ke_rpst_mtu_set(struct rte_eth_dev *ethdev, uint16_t mtu)
return -EBUSY;
}
if (frame_size > RTE_ETHER_MAX_LEN)
if (frame_size > IPN3KE_ETH_MAX_LEN)
dev_data->dev_conf.rxmode.offloads |=
(uint64_t)(DEV_RX_OFFLOAD_JUMBO_FRAME);
else