From 68696319a6fde3f464fab18aafad6b01ee2cc8f0 Mon Sep 17 00:00:00 2001
From: Tian Jiang <jiangtian6@h-partners.com>
Date: Mon, 17 Apr 2023 17:20:55 +0800
Subject: [PATCH 201/283] net: hns3: add support config and query serdes lane
 status

driver inclusion
category: feature
bugzilla: https://gitee.com/src-openeuler/kernel/issues/I8EN3D
CVE: NA

----------------------------------------------------------------------

The patch supports the function of disabling and status query of lane
channels on a port. The patch traverses all covered lanes on the
port and powers off the serdes ds power.

Signed-off-by: Tian Jiang <jiangtian6@h-partners.com>
Signed-off-by: shaojijie <shaojijie@huawei.com>
Signed-off-by: Jiantao Xiao <xiaojiantao1@h-partners.com>
Signed-off-by: Xiaodong Li <lixiaodong67@huawei.com>

 Conflicts:
	drivers/net/ethernet/hisilicon/hns3/hnae3_ext.h
	drivers/net/ethernet/hisilicon/hns3/hns3_ext.c
	drivers/net/ethernet/hisilicon/hns3/hns3_ext.h
---
 .../hisilicon/hns3/hns3pf/hclge_ext.c         | 46 +++++++++++++++++++
 .../hisilicon/hns3/hns3pf/hclge_ext.h         |  1 +
 2 files changed, 47 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ext.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ext.c
index dd595a783b55..b8bdace3245b 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ext.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ext.c
@@ -478,6 +478,50 @@ static int hclge_set_sfp_state(struct hclge_dev *hdev, void *data,
 	return ret;
 }
 
+static int hclge_set_net_lane_status(struct hclge_dev *hdev,
+				     u32 enable)
+{
+	struct hclge_desc desc;
+	int ret;
+
+	hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_DISABLE_NET_LANE, false);
+	desc.data[0] = cpu_to_le32(enable);
+
+	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+	if (ret)
+		dev_err(&hdev->pdev->dev,
+			"failed to set net lane status, ret = %d\n", ret);
+
+	return ret;
+}
+
+static int hclge_disable_net_lane(struct hclge_dev *hdev, void *data,
+				  size_t length)
+{
+	return hclge_set_net_lane_status(hdev, 0);
+}
+
+static int hclge_get_net_lane_status(struct hclge_dev *hdev, void *data,
+				     size_t length)
+{
+	struct hclge_desc desc;
+	int ret;
+
+	if (length != sizeof(u32))
+		return -EINVAL;
+
+	ret = hclge_get_info_from_cmd(hdev, &desc, 1,
+				      HCLGE_OPC_DISABLE_NET_LANE);
+	if (ret) {
+		dev_err(&hdev->pdev->dev,
+			"failed to get net lane status, ret = %d\n", ret);
+		return ret;
+	}
+
+	*(u32 *)data = le32_to_cpu(desc.data[0]);
+	return 0;
+}
+
 static void hclge_ext_resotre_config(struct hclge_dev *hdev)
 {
 	if (hdev->reset_type != HNAE3_IMP_RESET &&
@@ -640,6 +684,8 @@ static const hclge_priv_ops_fn hclge_ext_func_arr[] = {
 	[HNAE3_EXT_OPC_SET_PFC_TIME] = hclge_set_pause_trans_time,
 	[HNAE3_EXT_OPC_GET_PRESENT] = hclge_get_sfp_present,
 	[HNAE3_EXT_OPC_SET_SFP_STATE] = hclge_set_sfp_state,
+	[HNAE3_EXT_OPC_DISABLE_LANE] = hclge_disable_net_lane,
+	[HNAE3_EXT_OPC_GET_LANE_STATUS] = hclge_get_net_lane_status,
 };
 
 int hclge_ext_ops_handle(struct hnae3_handle *handle, int opcode,
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ext.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ext.h
index 607bd1668cdc..06b3d9c494f4 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ext.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_ext.h
@@ -91,6 +91,7 @@ enum hclge_ext_opcode_type {
 	HCLGE_OPC_CHIP_ID_GET = 0x7003,
 	HCLGE_OPC_GET_CHIP_NUM = 0x7005,
 	HCLGE_OPC_GET_PORT_NUM = 0x7006,
+	HCLGE_OPC_DISABLE_NET_LANE = 0x7008,
 	HCLGE_OPC_CFG_PAUSE_STORM_PARA = 0x7019,
 	HCLGE_OPC_SFP_GET_PRESENT = 0x7101,
 	HCLGE_OPC_SFP_SET_STATUS = 0x7102,
-- 
2.34.1

