| From 5c7bd4285655056ca721692504ed8aa0da17f9b6 Mon Sep 17 00:00:00 2001 |
| From: Huazhong Tan <tanhuazhong@huawei.com> |
| Date: Fri, 16 Aug 2019 16:09:41 +0800 |
| Subject: [PATCH] net: hns3: prevent unnecessary MAC TNL interrupt |
| |
| commit 20981a1e6b708536493e10ba90016ae28a9f3749 upstream. |
| |
| 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@huawei.com> |
| Reviewed-by: Yunsheng Lin <linyunsheng@huawei.com> |
| Signed-off-by: David S. Miller <davem@davemloft.net> |
| Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> |
| |
| diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c |
| index f3cb272f24d8..49dbfcc649dd 100644 |
| --- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c |
| +++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c |
| @@ -5901,6 +5901,8 @@ 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); |
| |
| -- |
| 2.27.0 |
| |
