netdev - [PATCH net-next 6/7] net: hns3: add a check for devcie's verion in hns3_tunnel_csum

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Fri, 27 Nov 2020 16:47:21 +0800
From:   Huazhong Tan <tanhuazhong@...wei.com>
To:     <davem@...emloft.net>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <salil.mehta@...wei.com>, <yisen.zhuang@...wei.com>,
        <linuxarm@...wei.com>, <kuba@...nel.org>,
        Huazhong Tan <tanhuazhong@...wei.com>
Subject: [PATCH net-next 6/7] net: hns3: add a check for devcie's verion in hns3_tunnel_csum_bug()

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@...wei.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 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 &&
-- 
2.7.4