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From:   Guangbin Huang <huangguangbin2@huawei.com>
To:     <davem@davemloft.net>, <kuba@kernel.org>, <fengchengwen@huawei.com>
CC:     <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <salil.mehta@huawei.com>, <lipeng321@huawei.com>,
        <huangguangbin2@huawei.com>
Subject: [PATCH net 4/4] net: hns3: fix rx VLAN offload state inconsistent issue
Date:   Mon, 19 Jul 2021 17:13:08 +0800
Message-ID: <1626685988-25869-5-git-send-email-huangguangbin2@huawei.com>
In-Reply-To: <1626685988-25869-1-git-send-email-huangguangbin2@huawei.com>
References: <1626685988-25869-1-git-send-email-huangguangbin2@huawei.com>
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From: Jian Shen <shenjian15@huawei.com>

Currently, VF doesn't enable rx VLAN offload when initializating,
and PF does it for VFs. If user disable the rx VLAN offload for
VF with ethtool -K, and reload the VF driver, it may cause the
rx VLAN offload state being inconsistent between hardware and
software.

Fixes it by enabling rx VLAN offload when VF initializing.

Fixes: e2cb1dec9779 ("net: hns3: Add HNS3 VF HCL(Hardware Compatibility Layer) Support")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index 52eaf82b7cd7..8784d61e833f 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -2641,6 +2641,16 @@ static int hclgevf_rss_init_hw(struct hclgevf_dev *hdev)
 
 static int hclgevf_init_vlan_config(struct hclgevf_dev *hdev)
 {
+	struct hnae3_handle *nic = &hdev->nic;
+	int ret;
+
+	ret = hclgevf_en_hw_strip_rxvtag(nic, true);
+	if (ret) {
+		dev_err(&hdev->pdev->dev,
+			"failed to enable rx vlan offload, ret = %d\n", ret);
+		return ret;
+	}
+
 	return hclgevf_set_vlan_filter(&hdev->nic, htons(ETH_P_8021Q), 0,
 				       false);
 }
-- 
2.8.1