linux-kernel - [PATCH net 2/5] net: hns3: fix GRE checksum offload issue

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]

Message-ID: <20230915095305.422328-3-shaojijie@huawei.com>
Date:   Fri, 15 Sep 2023 17:53:02 +0800
From:   Jijie Shao <shaojijie@...wei.com>
To:     <yisen.zhuang@...wei.com>, <salil.mehta@...wei.com>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>
CC:     <shenjian15@...wei.com>, <wangjie125@...wei.com>,
        <liuyonglong@...wei.com>, <shaojijie@...wei.com>,
        <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH net 2/5] net: hns3: fix GRE checksum offload issue

From: Jie Wang <wangjie125@...wei.com>

The device_version V3 hardware can't offload the checksum for IP in GRE
packets, but can do it for NvGRE. So default to disable the checksum and
GSO offload for GRE, but keep the ability to enable it when only using
NvGRE.

Fixes: 76ad4f0ee747 ("net: hns3: Add support of HNS3 Ethernet Driver for hip08 SoC")
Signed-off-by: Jie Wang <wangjie125@...wei.com>
Signed-off-by: Jijie Shao <shaojijie@...wei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index b4895c7b3efd..cf50368441b7 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -3353,6 +3353,15 @@ static void hns3_set_default_feature(struct net_device *netdev)
 		  NETIF_F_HW_TC);
 
 	netdev->hw_enc_features |= netdev->vlan_features | NETIF_F_TSO_MANGLEID;
+
+	/* The device_version V3 hardware can't offload the checksum for IP in
+	 * GRE packets, but can do it for NvGRE. So default to disable the
+	 * checksum and GSO offload for GRE.
+	 */
+	if (ae_dev->dev_version > HNAE3_DEVICE_VERSION_V2) {
+		netdev->features &= ~NETIF_F_GSO_GRE;
+		netdev->features &= ~NETIF_F_GSO_GRE_CSUM;
+	}
 }
 
 static int hns3_alloc_buffer(struct hns3_enet_ring *ring,
-- 
2.30.0