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net: hns3: Mask the packet statistics query when NIC is down

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Update the HNS3_NIC_STATE_DOWN bit when NIC state changes.
When NIC is down, mask the packet statistics for querying
with ifconfig command. It's a common practice.

Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jian Shen 2018-01-05 18:18:11 +08:00 committed by David S. Miller
parent c5f654805c
commit b875cc379d
1 changed files with 8 additions and 0 deletions
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8
drivers/net/ethernet/hisilicon/hns3/hns3_enet.c
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@ -247,6 +247,8 @@ static int hns3_nic_net_up(struct net_device *netdev)
if (ret)
goto out_start_err;
clear_bit(HNS3_NIC_STATE_DOWN, &priv->state);
return 0;
out_start_err:
@ -286,6 +288,9 @@ static void hns3_nic_net_down(struct net_device *netdev)
const struct hnae3_ae_ops *ops;
int i;
if (test_and_set_bit(HNS3_NIC_STATE_DOWN, &priv->state))
return;
/* stop ae_dev */
ops = priv->ae_handle->ae_algo->ops;
if (ops->stop)
@ -1135,6 +1140,9 @@ hns3_nic_get_stats64(struct net_device *netdev, struct rtnl_link_stats64 *stats)
u64 tx_pkts = 0;
u64 rx_pkts = 0;
if (test_bit(HNS3_NIC_STATE_DOWN, &priv->state))
return;
handle->ae_algo->ops->update_stats(handle, &netdev->stats);
for (idx = 0; idx < queue_num; idx++) {