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net/hns3: 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 'HSN3_DEFAULT_FRAME_LEN',
that perhaps impacts the cases of the jumbo frame related.

Fixes: 1f5ca0b460cd ("net/hns3: support some device operations")
Fixes: a5475d61fa34 ("net/hns3: support VF")
Cc: stable@dpdk.org

Signed-off-by: Steve Yang <stevex.yang@intel.com>
Acked-by: Lijun Ou <oulijun@huawei.com>
This commit is contained in:
Steve Yang 2021-01-18 07:04:12 +00:00 committed by Ferruh Yigit
parent b6c4c94175
commit 3ec35c64be
2 changed files with 2 additions and 2 deletions
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2
drivers/net/hns3/hns3_ethdev.c
View File

@ -2467,7 +2467,7 @@ hns3_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
}
rte_spinlock_lock(&hw->lock);
is_jumbo_frame = frame_size > RTE_ETHER_MAX_LEN ? true : false;
is_jumbo_frame = frame_size > HNS3_DEFAULT_FRAME_LEN ? true : false;
frame_size = RTE_MAX(frame_size, HNS3_DEFAULT_FRAME_LEN);
/*

2
drivers/net/hns3/hns3_ethdev_vf.c
View File

@ -928,7 +928,7 @@ hns3vf_dev_mtu_set(struct rte_eth_dev *dev, uint16_t mtu)
rte_spinlock_unlock(&hw->lock);
return ret;
}
if (frame_size > RTE_ETHER_MAX_LEN)
if (mtu > RTE_ETHER_MTU)
dev->data->dev_conf.rxmode.offloads |=
DEV_RX_OFFLOAD_JUMBO_FRAME;
else