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net: hns3: Fix for l4 checksum offload bug 

Hardware only support tcp/udp/sctp l4 checksum offload, but
the driver currently tell hardware to do l4 checksum offlad when
l3 is IPv4 or IPv6, which may cause checksumm error.

This patch fixes it by only enabling the l4 offload when l4 is
tcp/udp/sctp.

Fixes: 76ad4f0ee7 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yunsheng Lin 2018-07-06 11:27:58 +01:00 committed by David S. Miller
parent 3738287c7a
commit 5c8971979a
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
View File

@ -791,16 +791,14 @@ static int hns3_set_l3l4_type_csum(struct sk_buff *skb, u8 ol4_proto,
*/
if (skb_is_gso(skb))
hnae3_set_bit(*type_cs_vlan_tso, HNS3_TXD_L3CS_B, 1);
hnae3_set_bit(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1);
} else if (l3.v6->version == 6) {
hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3T_M,
HNS3_TXD_L3T_S, HNS3_L3T_IPV6);
hnae3_set_bit(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1);
}
switch (l4_proto) {
case IPPROTO_TCP:
hnae3_set_bit(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1);
hnae3_set_field(*type_cs_vlan_tso,
HNS3_TXD_L4T_M,
HNS3_TXD_L4T_S,
@ -810,12 +808,14 @@ static int hns3_set_l3l4_type_csum(struct sk_buff *skb, u8 ol4_proto,
if (hns3_tunnel_csum_bug(skb))
break;
hnae3_set_bit(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1);
hnae3_set_field(*type_cs_vlan_tso,
HNS3_TXD_L4T_M,
HNS3_TXD_L4T_S,
HNS3_L4T_UDP);
break;
case IPPROTO_SCTP:
hnae3_set_bit(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1);
hnae3_set_field(*type_cs_vlan_tso,
HNS3_TXD_L4T_M,
HNS3_TXD_L4T_S,