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Subject[PATCH V2 net-next 6/7] net: hns3: add a check for devcie's verion in hns3_tunnel_csum_bug()
Date
For the device whose version is above V3(include V3), the hardware
can do checksum offload for the non-tunnel udp packet, who has
a dest port as the IANA assigned. So add a check for devcie's verion
in hns3_tunnel_csum_bug().

Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
---
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 3ad7f98..1798c0a 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -828,8 +828,16 @@ static int hns3_get_l4_protocol(struct sk_buff *skb, u8 *ol4_proto,
*/
static bool hns3_tunnel_csum_bug(struct sk_buff *skb)
{
+ struct hns3_nic_priv *priv = netdev_priv(skb->dev);
+ struct hnae3_ae_dev *ae_dev = pci_get_drvdata(priv->ae_handle->pdev);
union l4_hdr_info l4;

+ /* device version above V3(include V3), the hardware can
+ * do this checksum offload.
+ */
+ if (ae_dev->dev_version >= HNAE3_DEVICE_VERSION_V3)
+ return false;
+
l4.hdr = skb_transport_header(skb);

if (!(!skb->encapsulation &&
--
2.7.4
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