linux-kernel - [PATCH net-next 04/12] net: hns3: add some debug info for hclgevf_get_mbx

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Message-ID: <1555643147-52407-5-git-send-email-tanhuazhong@huawei.com>
Date:   Fri, 19 Apr 2019 11:05:39 +0800
From:   Huazhong Tan <tanhuazhong@...wei.com>
To:     <davem@...emloft.net>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <salil.mehta@...wei.com>, <yisen.zhuang@...wei.com>,
        <linuxarm@...wei.com>, <nhorman@...hat.com>,
        Huazhong Tan <tanhuazhong@...wei.com>,
        Peng Li <lipeng321@...wei.com>
Subject: [PATCH net-next 04/12] net: hns3: add some debug info for hclgevf_get_mbx_resp()

When wait for response timeout or response code not match, there
should be more information for debugging.

Signed-off-by: Huazhong Tan <tanhuazhong@...wei.com>
Signed-off-by: Peng Li <lipeng321@...wei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
index bf57084..eb56287 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c
@@ -49,8 +49,8 @@ static int hclgevf_get_mbx_resp(struct hclgevf_dev *hdev, u16 code0, u16 code1,
 
 	if (i >= HCLGEVF_MAX_TRY_TIMES) {
 		dev_err(&hdev->pdev->dev,
-			"VF could not get mbx resp(=%d) from PF in %d tries\n",
-			hdev->mbx_resp.received_resp, i);
+			"VF could not get mbx(%d,%d) resp(=%d) from PF in %d tries\n",
+			code0, code1, hdev->mbx_resp.received_resp, i);
 		return -EIO;
 	}
 
@@ -68,8 +68,11 @@ static int hclgevf_get_mbx_resp(struct hclgevf_dev *hdev, u16 code0, u16 code1,
 
 	if (!(r_code0 == code0 && r_code1 == code1 && !mbx_resp->resp_status)) {
 		dev_err(&hdev->pdev->dev,
-			"VF could not match resp code(code0=%d,code1=%d), %d",
+			"VF could not match resp code(code0=%d,code1=%d), %d\n",
 			code0, code1, mbx_resp->resp_status);
+		dev_err(&hdev->pdev->dev,
+			"VF could not match resp r_code(r_code0=%d,r_code1=%d)\n",
+			r_code0, r_code1);
 		return -EIO;
 	}
 
-- 
2.7.4