net: hns3: fix set port based VLAN issue for VF

In original codes, ndo_set_vf_vlan() in hns3 driver was implemented
wrong. It adds or removes VLAN into VLAN filter for VF, but VF is
unaware of it.

This patch fixes it. When VF loads up, it firstly queries the port
based VLAN state from PF. When user change port based VLAN state
from PF, PF firstly checks whether the VF is alive. If the VF is
alive, then PF notifies the VF the modification; otherwise PF
configure the port based VLAN state directly.

Fixes: 46a3df9f9718 ("net: hns3: Add HNS3 Acceleration Engine & Compatibility Layer Support")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 62 insertions, 2 deletions

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
index b91796007200..2e277c91a106 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -245,6 +245,27 @@ static int hclgevf_get_tc_info(struct hclgevf_dev *hdev)
 	return 0;
 }
 
+static int hclgevf_get_port_base_vlan_filter_state(struct hclgevf_dev *hdev)
+{
+	struct hnae3_handle *nic = &hdev->nic;
+	u8 resp_msg;
+	int ret;
+
+	ret = hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_VLAN,
+				   HCLGE_MBX_GET_PORT_BASE_VLAN_STATE,
+				   NULL, 0, true, &resp_msg, sizeof(u8));
+	if (ret) {
+		dev_err(&hdev->pdev->dev,
+			"VF request to get port based vlan state failed %d",
+			ret);
+		return ret;
+	}
+
+	nic->port_base_vlan_state = resp_msg;
+
+	return 0;
+}
+
 static int hclgevf_get_queue_info(struct hclgevf_dev *hdev)
 {
 #define HCLGEVF_TQPS_RSS_INFO_LEN	6
@@ -1834,6 +1855,11 @@ static int hclgevf_configure(struct hclgevf_dev *hdev)
 {
 	int ret;
 
+	/* get current port based vlan state from PF */
+	ret = hclgevf_get_port_base_vlan_filter_state(hdev);
+	if (ret)
+		return ret;
+
 	/* get queue configuration from PF */
 	ret = hclgevf_get_queue_info(hdev);
 	if (ret)
@@ -2790,6 +2816,31 @@ static void hclgevf_get_regs(struct hnae3_handle *handle, u32 *version,
 	}
 }
 
+void hclgevf_update_port_base_vlan_info(struct hclgevf_dev *hdev, u16 state,
+					u8 *port_base_vlan_info, u8 data_size)
+{
+	struct hnae3_handle *nic = &hdev->nic;
+
+	rtnl_lock();
+	hclgevf_notify_client(hdev, HNAE3_DOWN_CLIENT);
+	rtnl_unlock();
+
+	/* send msg to PF and wait update port based vlan info */
+	hclgevf_send_mbx_msg(hdev, HCLGE_MBX_SET_VLAN,
+			     HCLGE_MBX_PORT_BASE_VLAN_CFG,
+			     port_base_vlan_info, data_size,
+			     false, NULL, 0);
+
+	if (state == HNAE3_PORT_BASE_VLAN_DISABLE)
+		nic->port_base_vlan_state = HNAE3_PORT_BASE_VLAN_DISABLE;
+	else
+		nic->port_base_vlan_state = HNAE3_PORT_BASE_VLAN_ENABLE;
+
+	rtnl_lock();
+	hclgevf_notify_client(hdev, HNAE3_UP_CLIENT);
+	rtnl_unlock();
+}
+
 static const struct hnae3_ae_ops hclgevf_ops = {
 	.init_ae_dev = hclgevf_init_ae_dev,
 	.uninit_ae_dev = hclgevf_uninit_ae_dev,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
index c128863ee7d0..49e5bec53d45 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.h
@@ -290,4 +290,6 @@ void hclgevf_update_speed_duplex(struct hclgevf_dev *hdev, u32 speed,
 				 u8 duplex);
 void hclgevf_reset_task_schedule(struct hclgevf_dev *hdev);
 void hclgevf_mbx_task_schedule(struct hclgevf_dev *hdev);
+void hclgevf_update_port_base_vlan_info(struct hclgevf_dev *hdev, u16 state,
+					u8 *port_base_vlan_info, u8 data_size);
 #endif
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
index 3bcf49bde11a..bf570840b1f4 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
@@ -198,6 +198,7 @@ void hclgevf_mbx_handler(struct hclgevf_dev *hdev)
 		case HCLGE_MBX_LINK_STAT_CHANGE:
 		case HCLGE_MBX_ASSERTING_RESET:
 		case HCLGE_MBX_LINK_STAT_MODE:
+		case HLCGE_MBX_PUSH_VLAN_INFO:
 			/* set this mbx event as pending. This is required as we
 			 * might loose interrupt event when mbx task is busy
 			 * handling. This shall be cleared when mbx task just
@@ -243,8 +244,8 @@ void hclgevf_mbx_handler(struct hclgevf_dev *hdev)
 void hclgevf_mbx_async_handler(struct hclgevf_dev *hdev)
 {
 	enum hnae3_reset_type reset_type;
-	u16 link_status;
-	u16 *msg_q;
+	u16 link_status, state;
+	u16 *msg_q, *vlan_info;
 	u8 duplex;
 	u32 speed;
 	u32 tail;
@@ -299,6 +300,12 @@ void hclgevf_mbx_async_handler(struct hclgevf_dev *hdev)
 			hclgevf_reset_task_schedule(hdev);
 
 			break;
+		case HLCGE_MBX_PUSH_VLAN_INFO:
+			state = le16_to_cpu(msg_q[1]);
+			vlan_info = &msg_q[1];
+			hclgevf_update_port_base_vlan_info(hdev, state,
+							   (u8 *)vlan_info, 8);
+			break;
 		default:
 			dev_err(&hdev->pdev->dev,
 				"fetched unsupported(%d) message from arq\n",