Re: [PATCH] net: hisilicon: Fix ping latency when deal with high throughput

From: Jiangfeng Xiao
Date: Sun Oct 27 2019 - 21:27:28 EST




On 2019/10/27 2:22, David Miller wrote:
> From: Jiangfeng Xiao <xiaojiangfeng@xxxxxxxxxx>
> Date: Sat, 26 Oct 2019 16:49:39 +0800
>
>> diff --git a/drivers/net/ethernet/hisilicon/hip04_eth.c b/drivers/net/ethernet/hisilicon/hip04_eth.c
>> index ad6d912..78f338a 100644
>> --- a/drivers/net/ethernet/hisilicon/hip04_eth.c
>> +++ b/drivers/net/ethernet/hisilicon/hip04_eth.c
>> @@ -575,7 +575,7 @@ static int hip04_rx_poll(struct napi_struct *napi, int budget)
>> struct hip04_priv *priv = container_of(napi, struct hip04_priv, napi);
>> struct net_device *ndev = priv->ndev;
>> struct net_device_stats *stats = &ndev->stats;
>> - unsigned int cnt = hip04_recv_cnt(priv);
>> + static unsigned int cnt_remaining;
>
> There is no way a piece of software state should be system wide, this is
> a per device instance value.
>
> .
>
Thank you for your guidance, I will fix it in v2.