[PATCH net-next 04/12] net: hns3: use HCLGE_STATE_NIC_REGISTERED to indicate PF NIC client has registered
From: Huazhong Tan
Date: Tue May 28 2019 - 05:08:24 EST
When PF NIC client's init_instance() succeeds, it means this client
has been registered successfully, so we use HCLGE_STATE_NIC_REGISTERED
to indicate that. And before calling PF NIC client's uninit_instance(),
we clear this state.
So any operation of PF NIC client from HCLGE is not allowed if this
state is not set.
Signed-off-by: Huazhong Tan <tanhuazhong@xxxxxxxxxx>
Signed-off-by: Peng Li <lipeng321@xxxxxxxxxx>
---
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c | 6 ++++++
drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h | 1 +
2 files changed, 7 insertions(+)
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index fb0dc18..87c5cb0 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -2873,6 +2873,10 @@ int hclge_notify_client(struct hclge_dev *hdev,
struct hnae3_client *client = hdev->nic_client;
u16 i;
+ if (!test_bit(HCLGE_STATE_NIC_REGISTERED, &hdev->state) ||
+ !client)
+ return 0;
+
if (!client->ops->reset_notify)
return -EOPNOTSUPP;
@@ -8184,6 +8188,7 @@ static int hclge_init_client_instance(struct hnae3_client *client,
goto clear_nic;
hnae3_set_client_init_flag(client, ae_dev, 1);
+ set_bit(HCLGE_STATE_NIC_REGISTERED, &hdev->state);
if (netif_msg_drv(&hdev->vport->nic))
hclge_info_show(hdev);
@@ -8270,6 +8275,7 @@ static void hclge_uninit_client_instance(struct hnae3_client *client,
if (client->type == HNAE3_CLIENT_ROCE)
return;
if (hdev->nic_client && client->ops->uninit_instance) {
+ clear_bit(HCLGE_STATE_NIC_REGISTERED, &hdev->state);
client->ops->uninit_instance(&vport->nic, 0);
hdev->nic_client = NULL;
vport->nic.client = NULL;
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index c770390..43901ff 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -201,6 +201,7 @@ enum HCLGE_DEV_STATE {
HCLGE_STATE_DOWN,
HCLGE_STATE_DISABLED,
HCLGE_STATE_REMOVING,
+ HCLGE_STATE_NIC_REGISTERED,
HCLGE_STATE_SERVICE_INITED,
HCLGE_STATE_SERVICE_SCHED,
HCLGE_STATE_RST_SERVICE_SCHED,
--
2.7.4