From: Guangbin Huang <huangguangbin2@huawei.com>
Date: Wed, 27 May 2020 08:59:14 +0800
Subject: net: hns3: add a resetting check in
hclgevf_init_nic_client_instance()
Patch-mainline: v5.8-rc1
Git-commit: 4cd5beaa89a95b331e5586d55469f5569faa18f6
References: jsc#SLE-14777
To prevent from initializing VF NIC client in reset handling state,
this patch adds resetting check in hclgevf_init_nic_client_instance().
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_main.c
@@ -2713,6 +2713,7 @@ static int hclgevf_init_nic_client_insta
struct hnae3_client *client)
{
struct hclgevf_dev *hdev = ae_dev->priv;
+ int rst_cnt = hdev->rst_stats.rst_cnt;
int ret;
ret = client->ops->init_instance(&hdev->nic);
@@ -2720,6 +2721,14 @@ static int hclgevf_init_nic_client_insta
return ret;
set_bit(HCLGEVF_STATE_NIC_REGISTERED, &hdev->state);
+ if (test_bit(HCLGEVF_STATE_RST_HANDLING, &hdev->state) ||
+ rst_cnt != hdev->rst_stats.rst_cnt) {
+ clear_bit(HCLGEVF_STATE_NIC_REGISTERED, &hdev->state);
+
+ client->ops->uninit_instance(&hdev->nic, 0);
+ return -EBUSY;
+ }
+
hnae3_set_client_init_flag(client, ae_dev, 1);
if (netif_msg_drv(&hdev->nic))