netdev - 答复: [PATCH] net: convert gro

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Message-ID: <2AD939572F25A448A3AE3CAEA61328C23784EC2E@BC-MAIL-M28.internal.baidu.com>
Date:   Thu, 12 Jul 2018 02:31:10 +0000
From:   "Li,Rongqing" <lirongqing@...du.com>
To:     Stefano Brivio <sbrivio@...hat.com>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>
Subject: 答复: [PATCH] net: convert gro_count to bitmask



> -----邮件原件-----
> 发件人: Stefano Brivio [mailto:sbrivio@...hat.com]
> 发送时间: 2018年7月11日 18:52
> 收件人: Li,Rongqing <lirongqing@...du.com>
> 抄送: netdev@...r.kernel.org; Eric Dumazet <edumazet@...gle.com>
> 主题: Re: [PATCH] net: convert gro_count to bitmask
> 
> On Wed, 11 Jul 2018 17:15:53 +0800
> Li RongQing <lirongqing@...du.com> wrote:
> 
> > @@ -5380,6 +5382,12 @@ static enum gro_result dev_gro_receive(struct
> napi_struct *napi, struct sk_buff
> >  	if (grow > 0)
> >  		gro_pull_from_frag0(skb, grow);
> >  ok:
> > +	if (napi->gro_hash[hash].count)
> > +		if (!test_bit(hash, &napi->gro_bitmask))
> > +			set_bit(hash, &napi->gro_bitmask);
> > +	else if (test_bit(hash, &napi->gro_bitmask))
> > +		clear_bit(hash, &napi->gro_bitmask);
> 
> This might not do what you want.
> 
> --

could you show detail ?

-RongQing

> Stefano