diff options
| author |   Jian Shen <shenjian15@huawei.com> | 2018-09-21 16:41:43 +0100 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2018-09-21 19:29:32 -0700 |
| commit | 7a8101109dd37837f587cd56f3111d4fc17a07f5 (patch) | |
| tree | 54bc314235fe67b092aeb1041805baa1a7a540b3 /drivers/net | |
| parent | net: hns3: Add handle for default case (diff) | |
| download | linux-dev-7a8101109dd37837f587cd56f3111d4fc17a07f5.tar.xz linux-dev-7a8101109dd37837f587cd56f3111d4fc17a07f5.zip | |
net: hns3: Add nic state check before calling netif_tx_wake_queue
When nic down, it firstly calls netif_tx_stop_all_queues(), then calls
napi_disable(). But napi_disable() will wait current napi_poll finish,
it may call netif_tx_wake_queue(). This patch fixes it by add nic state
checking.
Fixes: 424eb834a9be ("net: hns3: Unified HNS3 {VF|PF} Ethernet Driver for hip08 SoC")
Signed-off-by: Jian Shen <shenjian15@huawei.com>
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns3/hns3_enet.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c index fc27f3fe0c5e..73b42d3326ad 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.c @@ -1973,6 +1973,7 @@ static int is_valid_clean_head(struct hns3_enet_ring *ring, int h) void hns3_clean_tx_ring(struct hns3_enet_ring *ring) { struct net_device *netdev = ring->tqp->handle->kinfo.netdev; + struct hns3_nic_priv *priv = netdev_priv(netdev); struct netdev_queue *dev_queue; int bytes, pkts; int head; @@ -2018,7 +2019,8 @@ void hns3_clean_tx_ring(struct hns3_enet_ring *ring) * sees the new next_to_clean. */ smp_mb(); - if (netif_tx_queue_stopped(dev_queue)) { + if (netif_tx_queue_stopped(dev_queue) && + !test_bit(HNS3_NIC_STATE_DOWN, &priv->state)) { netif_tx_wake_queue(dev_queue); ring->stats.restart_queue++; } |