[PATCH net-next 6/7] net: hns3: add a check for devcie's verion in hns3_tunnel_csum_bug()
From: Huazhong Tan <hidden>
Date: 2020-11-27 08:48:03
Also in:
lkml
Subsystem:
hisilicon network subsystem 3 driver (hns3), hisilicon network subsystem driver, networking drivers, the rest · Maintainers:
Jian Shen, Jijie Shao, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
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 <redacted> --- 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 07bdb3d5..b51bf61 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 &&
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2.7.4