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net/dpaa: 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 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' and
overhead, that perhaps impacts the cases of the jumbo frame related.

Fixes: 25f854197a ("net/dpaa: support jumbo frames")
Cc: stable@dpdk.org

Signed-off-by: Steve Yang <stevex.yang@intel.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
This commit is contained in:
Steve Yang 2021-01-18 07:04:09 +00:00 committed by Ferruh Yigit
parent 761c4d6690
commit 1d57225d0e
2 changed files with 5 additions and 1 deletions
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2
drivers/net/dpaa/dpaa_ethdev.c
View File

@ -184,7 +184,7 @@ dpaa_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
return -EINVAL;
}
if (frame_size > RTE_ETHER_MAX_LEN)
if (frame_size > DPAA_ETH_MAX_LEN)
dev->data->dev_conf.rxmode.offloads |=
DEV_RX_OFFLOAD_JUMBO_FRAME;
else

4
drivers/net/dpaa/dpaa_ethdev.h
View File

@ -51,6 +51,10 @@
#define VLAN_TAG_SIZE 4 /** < Vlan Header Length */
#endif
#define DPAA_ETH_MAX_LEN (RTE_ETHER_MTU + \
RTE_ETHER_HDR_LEN + RTE_ETHER_CRC_LEN + \
VLAN_TAG_SIZE)
/* PCD frame queues */
#define DPAA_DEFAULT_NUM_PCD_QUEUES 1
#define DPAA_VSP_PROFILE_MAX_NUM 8