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Commit 33a90e2f authored by Zhongzhu Liu's avatar Zhongzhu Liu Committed by David S. Miller
Browse files

net: hns3: add support for dump firmware statistics by debugfs 



This patch prints firmware statistics information.

debugfs command:
echo dump m7 info > cmd

estuary:/dbg/hns3/0000:7d:00.0$ echo dump m7 info > cmd
[  172.577240] hns3 0000:7d:00.0: 0x00000000  0x00000000  0x00000000
[  172.583471] hns3 0000:7d:00.0: 0x00000000  0x00000000  0x00000000
[  172.589552] hns3 0000:7d:00.0: 0x00000030  0x00000000  0x00000000
[  172.595632] hns3 0000:7d:00.0: 0x00000000  0x00000000  0x00000000
estuary:/dbg/hns3/0000:7d:00.0$

Signed-off-by: default avatarZhongzhu Liu <liuzhongzhu@huawei.com>
Signed-off-by: default avatarPeng Li <lipeng321@huawei.com>
Signed-off-by: default avatarHuazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent eff858c1

drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c

+1 −0
Original line number Diff line number Diff line
@@ -252,6 +252,7 @@ static void hns3_dbg_help(struct hnae3_handle *h) 
	dev_info(&h->pdev->dev, "dump qos buf cfg\n");

	dev_info(&h->pdev->dev, "dump mng tbl\n");

	dev_info(&h->pdev->dev, "dump reset info\n");

	dev_info(&h->pdev->dev, "dump m7 info\n");

	dev_info(&h->pdev->dev, "dump ncl_config <offset> <length>(in hex)\n");

	dev_info(&h->pdev->dev, "dump mac tnl status\n");

drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h

+8 −0
Original line number Diff line number Diff line
@@ -243,6 +243,9 @@ enum hclge_opcode_type { 


	/* NCL config command */

	HCLGE_OPC_QUERY_NCL_CONFIG	= 0x7011,

	/* M7 stats command */

	HCLGE_OPC_M7_STATS_BD		= 0x7012,

	HCLGE_OPC_M7_STATS_INFO		= 0x7013,



	/* SFP command */

	HCLGE_OPC_GET_SFP_INFO		= 0x7104,
@@ -970,6 +973,11 @@ struct hclge_fd_ad_config_cmd { 
	u8 rsv2[8];

};



struct hclge_get_m7_bd_cmd {

	__le32 bd_num;

	u8 rsv[20];

};



int hclge_cmd_init(struct hclge_dev *hdev);

static inline void hclge_write_reg(void __iomem *base, u32 reg, u32 value)

{

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

+57 −0
Original line number Diff line number Diff line
@@ -921,6 +921,61 @@ static void hclge_dbg_dump_rst_info(struct hclge_dev *hdev) 
		 hdev->rst_stats.reset_cnt);

}



void hclge_dbg_get_m7_stats_info(struct hclge_dev *hdev)

{

	struct hclge_desc *desc_src, *desc_tmp;

	struct hclge_get_m7_bd_cmd *req;

	struct hclge_desc desc;

	u32 bd_num, buf_len;

	int ret, i;



	hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_M7_STATS_BD, true);



	req = (struct hclge_get_m7_bd_cmd *)desc.data;

	ret = hclge_cmd_send(&hdev->hw, &desc, 1);

	if (ret) {

		dev_err(&hdev->pdev->dev,

			"get firmware statistics bd number failed, ret=%d\n",

			ret);

		return;

	}



	bd_num = le32_to_cpu(req->bd_num);



	buf_len	 = sizeof(struct hclge_desc) * bd_num;

	desc_src = kzalloc(buf_len, GFP_KERNEL);

	if (!desc_src) {

		dev_err(&hdev->pdev->dev,

			"allocate desc for get_m7_stats failed\n");

		return;

	}



	desc_tmp = desc_src;

	ret  = hclge_dbg_cmd_send(hdev, desc_tmp, 0, bd_num,

				  HCLGE_OPC_M7_STATS_INFO);

	if (ret) {

		kfree(desc_src);

		dev_err(&hdev->pdev->dev,

			"get firmware statistics failed, ret=%d\n", ret);

		return;

	}



	for (i = 0; i < bd_num; i++) {

		dev_info(&hdev->pdev->dev, "0x%08x  0x%08x  0x%08x\n",

			 le32_to_cpu(desc_tmp->data[0]),

			 le32_to_cpu(desc_tmp->data[1]),

			 le32_to_cpu(desc_tmp->data[2]));

		dev_info(&hdev->pdev->dev, "0x%08x  0x%08x  0x%08x\n",

			 le32_to_cpu(desc_tmp->data[3]),

			 le32_to_cpu(desc_tmp->data[4]),

			 le32_to_cpu(desc_tmp->data[5]));



		desc_tmp++;

	}



	kfree(desc_src);

}



/* hclge_dbg_dump_ncl_config: print specified range of NCL_CONFIG file

 * @hdev: pointer to struct hclge_dev

 * @cmd_buf: string that contains offset and length
@@ -1029,6 +1084,8 @@ int hclge_dbg_run_cmd(struct hnae3_handle *handle, char *cmd_buf) 
		hclge_dbg_dump_reg_cmd(hdev, cmd_buf);

	} else if (strncmp(cmd_buf, "dump reset info", 15) == 0) {

		hclge_dbg_dump_rst_info(hdev);

	} else if (strncmp(cmd_buf, "dump m7 info", 12) == 0) {

		hclge_dbg_get_m7_stats_info(hdev);

	} else if (strncmp(cmd_buf, "dump ncl_config", 15) == 0) {

		hclge_dbg_dump_ncl_config(hdev,

					  &cmd_buf[sizeof("dump ncl_config")]);