[PATCH net-next 14/20] net: hns3: fix for updating fc_mode_last_time

[Peng Li]

From: Fuyun Liang <liangfuy...@huawei.com>

commit a9c782822166 ("net: hns3: add support for set_pauseparam")
adds set_pauseparam support for ethtool cmd, but forgets to update
fc_mode_last_time when PFC mode is disabled in hclge_cfg_pauseparam().
The wrong fc_mode_last_time will be used to update flow control mode
when lldpad has been running. As a result, when using the ethtool
command "-a", user will get a wrong pause parameter.

This patch adds the fc_mode_last_time update when PFC mode is disabled.

Fixes: a9c782822166 ("net: hns3: add support for set_pauseparam")
Signed-off-by: Fuyun Liang <liangfuy...@huawei.com>
Signed-off-by: Peng Li <lipeng...@huawei.com>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 15 ++++++---------
 1 file changed, 6 insertions(+), 9 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c 
b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 8004922..fcda9a2 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -4707,22 +4707,19 @@ static void hclge_set_flowctrl_adv(struct hclge_dev 
*hdev, u32 rx_en, u32 tx_en)
 
 static int hclge_cfg_pauseparam(struct hclge_dev *hdev, u32 rx_en, u32 tx_en)
 {
-       enum hclge_fc_mode fc_mode;
        int ret;
 
        if (rx_en && tx_en)
-               fc_mode = HCLGE_FC_FULL;
+               hdev->fc_mode_last_time = HCLGE_FC_FULL;
        else if (rx_en && !tx_en)
-               fc_mode = HCLGE_FC_RX_PAUSE;
+               hdev->fc_mode_last_time = HCLGE_FC_RX_PAUSE;
        else if (!rx_en && tx_en)
-               fc_mode = HCLGE_FC_TX_PAUSE;
+               hdev->fc_mode_last_time = HCLGE_FC_TX_PAUSE;
        else
-               fc_mode = HCLGE_FC_NONE;
+               hdev->fc_mode_last_time = HCLGE_FC_NONE;
 
-       if (hdev->tm_info.fc_mode == HCLGE_FC_PFC) {
-               hdev->fc_mode_last_time = fc_mode;
+       if (hdev->tm_info.fc_mode == HCLGE_FC_PFC)
                return 0;
-       }
 
        ret = hclge_mac_pause_en_cfg(hdev, tx_en, rx_en);
        if (ret) {
@@ -4731,7 +4728,7 @@ static int hclge_cfg_pauseparam(struct hclge_dev *hdev, 
u32 rx_en, u32 tx_en)
                return ret;
        }
 
-       hdev->tm_info.fc_mode = fc_mode;
+       hdev->tm_info.fc_mode = hdev->fc_mode_last_time;
 
        return 0;
 }
-- 
1.9.1