linux-kernel - [PATCH V2 net-next 5/9] net: hns3: add log for setting tx spare buf size

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Message-ID: <20220419032709.15408-6-huangguangbin2@huawei.com>
Date:   Tue, 19 Apr 2022 11:27:05 +0800
From:   Guangbin Huang <huangguangbin2@...wei.com>
To:     <davem@...emloft.net>, <kuba@...nel.org>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <lipeng321@...wei.com>, <huangguangbin2@...wei.com>,
        <chenhao288@...ilicon.com>
Subject: [PATCH V2 net-next 5/9] net: hns3: add log for setting tx spare buf size

From: Hao Chen <chenhao288@...ilicon.com>

For the active tx spare buffer size maybe changed according
to the page size, so add log to notice it.

Signed-off-by: Hao Chen <chenhao288@...ilicon.com>
Signed-off-by: Guangbin Huang <huangguangbin2@...wei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
index e647751e9054..73498e125492 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
@@ -1898,6 +1898,8 @@ static int hns3_set_tunable(struct net_device *netdev,
 	case ETHTOOL_TX_COPYBREAK_BUF_SIZE:
 		old_tx_spare_buf_size = h->kinfo.tx_spare_buf_size;
 		new_tx_spare_buf_size = *(u32 *)data;
+		netdev_info(netdev, "request to set tx spare buf size from %u to %u\n",
+			    old_tx_spare_buf_size, new_tx_spare_buf_size);
 		ret = hns3_set_tx_spare_buf_size(netdev, new_tx_spare_buf_size);
 		if (ret ||
 		    (!priv->ring->tx_spare && new_tx_spare_buf_size != 0)) {
@@ -1915,6 +1917,10 @@ static int hns3_set_tunable(struct net_device *netdev,
 
 			return ret;
 		}
+
+		netdev_info(netdev, "the actvie tx spare buf size is %u, due to page order\n",
+			    priv->ring->tx_spare->len);
+
 		break;
 	default:
 		ret = -EOPNOTSUPP;
-- 
2.33.0