From: liuzhongzhu <liuzhongzhu@huawei.com>
Date: Thu, 22 Nov 2018 14:09:46 +0000
Subject: net: hns3: Add "qos pause" config info query function
Patch-mainline: v5.0-rc1
Git-commit: d958919dc15c9e315df7d28d08d3ab6f3b909a32
References: bsc#1104353 FATE#326415

This patch prints qos pause config information.

debugfs command:
echo dump qos pause cfg > cmd

Sample Command:
root@(none)# echo dump qos pause cfg > cmd
hns3 0000:7d:00.0: dump qos pause cfg
hns3 0000:7d:00.0: pause_trans_gap: 0xff
hns3 0000:7d:00.0: pause_trans_time: 0xffff
root@(none)#

Signed-off-by: liuzhongzhu <liuzhongzhu@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c         |    1 
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c |   25 +++++++++++++
 2 files changed, 26 insertions(+)

--- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c
@@ -132,6 +132,7 @@ static void hns3_dbg_help(struct hnae3_h
 	dev_info(&h->pdev->dev, "dump fd tcam\n");
 	dev_info(&h->pdev->dev, "dump tc\n");
 	dev_info(&h->pdev->dev, "dump tm\n");
+	dev_info(&h->pdev->dev, "dump qos pause cfg\n");
 }
 
 static ssize_t hns3_dbg_cmd_read(struct file *filp, char __user *buffer,
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -242,6 +242,29 @@ err_tm_cmd_send:
 		cmd, ret);
 }
 
+static void hclge_dbg_dump_qos_pause_cfg(struct hclge_dev *hdev)
+{
+	struct hclge_cfg_pause_param_cmd *pause_param;
+	struct hclge_desc desc;
+	int ret;
+
+	hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_CFG_MAC_PARA, true);
+
+	ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+	if (ret) {
+		dev_err(&hdev->pdev->dev, "dump checksum fail, status is %d.\n",
+			ret);
+		return;
+	}
+
+	pause_param = (struct hclge_cfg_pause_param_cmd *)desc.data;
+	dev_info(&hdev->pdev->dev, "dump qos pause cfg\n");
+	dev_info(&hdev->pdev->dev, "pause_trans_gap: 0x%x\n",
+		 pause_param->pause_trans_gap);
+	dev_info(&hdev->pdev->dev, "pause_trans_time: 0x%x\n",
+		 pause_param->pause_trans_time);
+}
+
 static void hclge_dbg_fd_tcam_read(struct hclge_dev *hdev, u8 stage,
 				   bool sel_x, u32 loc)
 {
@@ -307,6 +330,8 @@ int hclge_dbg_run_cmd(struct hnae3_handl
 		hclge_dbg_dump_tc(hdev);
 	} else if (strncmp(cmd_buf, "dump tm", 7) == 0) {
 		hclge_dbg_dump_tm(hdev);
+	} else if (strncmp(cmd_buf, "dump qos pause cfg", 18) == 0) {
+		hclge_dbg_dump_qos_pause_cfg(hdev);
 	} else {
 		dev_info(&hdev->pdev->dev, "unknown command\n");
 		return -EINVAL;