net: hns3: clean residual vf config after disable sriov

After disable sriov, VF still has some config and info need to be
cleaned, which configured by PF. This patch clean the HW config
and SW struct vport->vf_info.

Fixes: fa8d82e853e8 ("net: hns3: Add support of .sriov_configure in HNS3 driver")
Signed-off-by: Peng Li<lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 71 insertions, 0 deletions

diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 6f18c9a03231..d44dd7091fa1 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -537,6 +537,8 @@ struct hnae3_ae_dev {
  *   Get 1588 rx hwstamp
  * get_ts_info
  *   Get phc info
+ * clean_vf_config
+ *   Clean residual vf info after disable sriov
  */
 struct hnae3_ae_ops {
 	int (*init_ae_dev)(struct hnae3_ae_dev *ae_dev);
@@ -730,6 +732,7 @@ struct hnae3_ae_ops {
 			   struct ethtool_ts_info *info);
 	int (*get_link_diagnosis_info)(struct hnae3_handle *handle,
 				       u32 *status_code);
+	void (*clean_vf_config)(struct hnae3_ae_dev *ae_dev, int num_vfs);
 };
 
 struct hnae3_dcb_ops {
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
index 530ba8bef503..14dc12c2155d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
@@ -3060,6 +3060,21 @@ static int hns3_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	return ret;
 }
 
+/**
+ * hns3_clean_vf_config
+ * @pdev: pointer to a pci_dev structure
+ * @num_vfs: number of VFs allocated
+ *
+ * Clean residual vf config after disable sriov
+ **/
+static void hns3_clean_vf_config(struct pci_dev *pdev, int num_vfs)
+{
+	struct hnae3_ae_dev *ae_dev = pci_get_drvdata(pdev);
+
+	if (ae_dev->ops->clean_vf_config)
+		ae_dev->ops->clean_vf_config(ae_dev, num_vfs);
+}
+
 /* hns3_remove - Device removal routine
  * @pdev: PCI device information struct
  */
@@ -3098,7 +3113,10 @@ static int hns3_pci_sriov_configure(struct pci_dev *pdev, int num_vfs)
 		else
 			return num_vfs;
 	} else if (!pci_vfs_assigned(pdev)) {
+		int num_vfs_pre = pci_num_vf(pdev);
+
 		pci_disable_sriov(pdev);
+		hns3_clean_vf_config(pdev, num_vfs_pre);
 	} else {
 		dev_warn(&pdev->dev,
 			 "Unable to free VFs because some are assigned to VMs.\n");
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 279a1771fe7c..2a5e6a241d52 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -12724,6 +12724,55 @@ static int hclge_get_link_diagnosis_info(struct hnae3_handle *handle,
 	return 0;
 }
 
+/* After disable sriov, VF still has some config and info need clean,
+ * which configed by PF.
+ */
+static void hclge_clear_vport_vf_info(struct hclge_vport *vport, int vfid)
+{
+	struct hclge_dev *hdev = vport->back;
+	struct hclge_vlan_info vlan_info;
+	int ret;
+
+	/* after disable sriov, clean VF rate configured by PF */
+	ret = hclge_tm_qs_shaper_cfg(vport, 0);
+	if (ret)
+		dev_err(&hdev->pdev->dev,
+			"failed to clean vf%d rate config, ret = %d\n",
+			vfid, ret);
+
+	vlan_info.vlan_tag = 0;
+	vlan_info.qos = 0;
+	vlan_info.vlan_proto = ETH_P_8021Q;
+	ret = hclge_update_port_base_vlan_cfg(vport,
+					      HNAE3_PORT_BASE_VLAN_DISABLE,
+					      &vlan_info);
+	if (ret)
+		dev_err(&hdev->pdev->dev,
+			"failed to clean vf%d port base vlan, ret = %d\n",
+			vfid, ret);
+
+	ret = hclge_set_vf_spoofchk_hw(hdev, vport->vport_id, false);
+	if (ret)
+		dev_err(&hdev->pdev->dev,
+			"failed to clean vf%d spoof config, ret = %d\n",
+			vfid, ret);
+
+	memset(&vport->vf_info, 0, sizeof(vport->vf_info));
+}
+
+static void hclge_clean_vport_config(struct hnae3_ae_dev *ae_dev, int num_vfs)
+{
+	struct hclge_dev *hdev = ae_dev->priv;
+	struct hclge_vport *vport;
+	int i;
+
+	for (i = 0; i < num_vfs; i++) {
+		vport = &hdev->vport[i + HCLGE_VF_VPORT_START_NUM];
+
+		hclge_clear_vport_vf_info(vport, i);
+	}
+}
+
 static const struct hnae3_ae_ops hclge_ops = {
 	.init_ae_dev = hclge_init_ae_dev,
 	.uninit_ae_dev = hclge_uninit_ae_dev,
@@ -12825,6 +12874,7 @@ static const struct hnae3_ae_ops hclge_ops = {
 	.get_rx_hwts = hclge_ptp_get_rx_hwts,
 	.get_ts_info = hclge_ptp_get_ts_info,
 	.get_link_diagnosis_info = hclge_get_link_diagnosis_info,
+	.clean_vf_config = hclge_clean_vport_config,
 };
 
 static struct hnae3_ae_algo ae_algo = {