[PATCH net-next 5/6] net: hns3: prevent unnecessary MAC TNL interrupt

From: Huazhong Tan
Date: Fri Aug 16 2019 - 04:12:17 EST

MAC TNL interrupt is used to collect statistic info about
link status changing suddenly when netdev is running.

But when stopping netdev, the enabled MAC TNL interrupt is
unnecessary, and may add some noises to the statistic info.
So this patch disables it before stopping MAC.

Fixes: a63457878b12 ("net: hns3: Add handling of MAC tunnel interruption")
Signed-off-by: Huazhong Tan <tanhuazhong@xxxxxxxxxx>
Reviewed-by: Yunsheng Lin <linyunsheng@xxxxxxxxxx>
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index 24b59f0..9d64c43 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -6380,6 +6380,8 @@ static void hclge_ae_stop(struct hnae3_handle *handle)
for (i = 0; i < handle->kinfo.num_tqps; i++)
hclge_reset_tqp(handle, i);

+ hclge_config_mac_tnl_int(hdev, false);
/* Mac disable */
hclge_cfg_mac_mode(hdev, false);