net: hns3: refactor the loopback related function

This patch refactors the loopback related function in order
to support the serdes loopback.
Signed-off-by: Yunsheng Lin <linyunsheng@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c

@@ -74,7 +74,7 @@ struct hns3_link_mode_mapping {
 	u32 ethtool_link_mode;
 };
 
-static int hns3_lp_setup(struct net_device *ndev, enum hnae3_loop loop)
+static int hns3_lp_setup(struct net_device *ndev, enum hnae3_loop loop, bool en)
 {
 	struct hnae3_handle *h = hns3_get_handle(ndev);
 	int ret;
@@ -85,11 +85,7 @@ static int hns3_lp_setup(struct net_device *ndev, enum hnae3_loop loop)
 
 	switch (loop) {
 	case HNAE3_MAC_INTER_LOOP_MAC:
-		ret = h->ae_algo->ops->set_loopback(h, loop, true);
-		break;
-	case HNAE3_MAC_LOOP_NONE:
-		ret = h->ae_algo->ops->set_loopback(h,
-			HNAE3_MAC_INTER_LOOP_MAC, false);
+		ret = h->ae_algo->ops->set_loopback(h, loop, en);
 		break;
 	default:
 		ret = -ENOTSUPP;
@@ -99,10 +95,7 @@ static int hns3_lp_setup(struct net_device *ndev, enum hnae3_loop loop)
 	if (ret)
 		return ret;
 
-	if (loop == HNAE3_MAC_LOOP_NONE)
-		h->ae_algo->ops->set_promisc_mode(h, ndev->flags & IFF_PROMISC);
-	else
-		h->ae_algo->ops->set_promisc_mode(h, 1);
+	h->ae_algo->ops->set_promisc_mode(h, en);
 
 	return ret;
 }
@@ -122,13 +115,13 @@ static int hns3_lp_up(struct net_device *ndev, enum hnae3_loop loop_mode)
 		return ret;
 	}
 
-	ret = hns3_lp_setup(ndev, loop_mode);
+	ret = hns3_lp_setup(ndev, loop_mode, true);
 	usleep_range(10000, 20000);
 
 	return ret;
 }
 
-static int hns3_lp_down(struct net_device *ndev)
+static int hns3_lp_down(struct net_device *ndev, enum hnae3_loop loop_mode)
 {
 	struct hnae3_handle *h = hns3_get_handle(ndev);
 	int ret;
@@ -136,7 +129,7 @@ static int hns3_lp_down(struct net_device *ndev)
 	if (!h->ae_algo->ops->stop)
 		return -EOPNOTSUPP;
 
-	ret = hns3_lp_setup(ndev, HNAE3_MAC_LOOP_NONE);
+	ret = hns3_lp_setup(ndev, loop_mode, false);
 	if (ret) {
 		netdev_err(ndev, "lb_setup return error: %d\n", ret);
 		return ret;
@@ -332,7 +325,7 @@ static void hns3_self_test(struct net_device *ndev,
 		data[test_index] = hns3_lp_up(ndev, loop_type);
 		if (!data[test_index]) {
 			data[test_index] = hns3_lp_run_test(ndev, loop_type);
-			hns3_lp_down(ndev);
+			hns3_lp_down(ndev, loop_type);
 		}
 
 		if (data[test_index])

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c

@@ -3682,37 +3682,26 @@ static void hclge_cfg_mac_mode(struct hclge_dev *hdev, bool enable)
 			"mac enable fail, ret =%d.\n", ret);
 }
 
-static int hclge_set_loopback(struct hnae3_handle *handle,
-			      enum hnae3_loop loop_mode, bool en)
+static int hclge_set_mac_loopback(struct hclge_dev *hdev, bool en)
 {
-	struct hclge_vport *vport = hclge_get_vport(handle);
 	struct hclge_config_mac_mode_cmd *req;
-	struct hclge_dev *hdev = vport->back;
 	struct hclge_desc desc;
 	u32 loop_en;
 	int ret;
 
-	switch (loop_mode) {
-	case HNAE3_MAC_INTER_LOOP_MAC:
 	req = (struct hclge_config_mac_mode_cmd *)&desc.data[0];
 	/* 1 Read out the MAC mode config at first */
-		hclge_cmd_setup_basic_desc(&desc,
-					   HCLGE_OPC_CONFIG_MAC_MODE,
-					   true);
+	hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_CONFIG_MAC_MODE, true);
 	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
 	if (ret) {
 		dev_err(&hdev->pdev->dev,
-				"mac loopback get fail, ret =%d.\n",
-				ret);
+			"mac loopback get fail, ret =%d.\n", ret);
 		return ret;
 	}
 
 	/* 2 Then setup the loopback flag */
 	loop_en = le32_to_cpu(req->txrx_pad_fcs_loop_en);
-		if (en)
-			hnae_set_bit(loop_en, HCLGE_MAC_APP_LP_B, 1);
-		else
-			hnae_set_bit(loop_en, HCLGE_MAC_APP_LP_B, 0);
+	hnae_set_bit(loop_en, HCLGE_MAC_APP_LP_B, en ? 1 : 0);
 
 	req->txrx_pad_fcs_loop_en = cpu_to_le32(loop_en);
 
@@ -3724,6 +3713,19 @@ static int hclge_set_loopback(struct hnae3_handle *handle,
 	if (ret)
 		dev_err(&hdev->pdev->dev,
 			"mac loopback set fail, ret =%d.\n", ret);
+	return ret;
+}
+
+static int hclge_set_loopback(struct hnae3_handle *handle,
+			      enum hnae3_loop loop_mode, bool en)
+{
+	struct hclge_vport *vport = hclge_get_vport(handle);
+	struct hclge_dev *hdev = vport->back;
+	int ret;
+
+	switch (loop_mode) {
+	case HNAE3_MAC_INTER_LOOP_MAC:
+		ret = hclge_set_mac_loopback(hdev, en);
 		break;
 	default:
 		ret = -ENOTSUPP;