Re: [QUESTION] Doubt about NAPI_GRO_CB(skb)->is_atomic in tcpv4 gro process

2017-12-25 Thread Yunsheng Lin
Hi, Alexander On 2017/12/23 0:32, Alexander Duyck wrote: > On Fri, Dec 22, 2017 at 12:49 AM, Yunsheng Lin wrote: >> Hi, Alexander >> >> On 2017/12/22 0:29, Alexander Duyck wrote: >>> On Thu, Dec 21, 2017 at 1:16 AM, Yunsheng Lin >>> wrote:

Re: [QUESTION] Doubt about NAPI_GRO_CB(skb)->is_atomic in tcpv4 gro process

2017-12-22 Thread Alexander Duyck
On Fri, Dec 22, 2017 at 12:49 AM, Yunsheng Lin wrote: > Hi, Alexander > > On 2017/12/22 0:29, Alexander Duyck wrote: >> On Thu, Dec 21, 2017 at 1:16 AM, Yunsheng Lin wrote: >>> Hi, Alexander >>> >>> On 2017/12/21 0:24, Alexander Duyck wrote:

Re: [QUESTION] Doubt about NAPI_GRO_CB(skb)->is_atomic in tcpv4 gro process

2017-12-22 Thread Yunsheng Lin
Hi, Alexander On 2017/12/22 0:29, Alexander Duyck wrote: > On Thu, Dec 21, 2017 at 1:16 AM, Yunsheng Lin wrote: >> Hi, Alexander >> >> On 2017/12/21 0:24, Alexander Duyck wrote: >>> On Wed, Dec 20, 2017 at 1:09 AM, Yunsheng Lin >>> wrote:

Re: [QUESTION] Doubt about NAPI_GRO_CB(skb)->is_atomic in tcpv4 gro process

2017-12-21 Thread Alexander Duyck
On Thu, Dec 21, 2017 at 1:16 AM, Yunsheng Lin wrote: > Hi, Alexander > > On 2017/12/21 0:24, Alexander Duyck wrote: >> On Wed, Dec 20, 2017 at 1:09 AM, Yunsheng Lin wrote: >>> Hi, all >>> I have some doubt about NAPI_GRO_CB(skb)->is_atomic

Re: [QUESTION] Doubt about NAPI_GRO_CB(skb)->is_atomic in tcpv4 gro process

2017-12-21 Thread Yunsheng Lin
Hi, Alexander On 2017/12/21 0:24, Alexander Duyck wrote: > On Wed, Dec 20, 2017 at 1:09 AM, Yunsheng Lin wrote: >> Hi, all >> I have some doubt about NAPI_GRO_CB(skb)->is_atomic when >> analyzing the tcpv4 gro process: >> >> Firstly we set

Re: [QUESTION] Doubt about NAPI_GRO_CB(skb)->is_atomic in tcpv4 gro process

2017-12-20 Thread Alexander Duyck
On Wed, Dec 20, 2017 at 1:09 AM, Yunsheng Lin wrote: > Hi, all > I have some doubt about NAPI_GRO_CB(skb)->is_atomic when > analyzing the tcpv4 gro process: > > Firstly we set NAPI_GRO_CB(skb)->is_atomic to 1 in dev_gro_receive: >

[QUESTION] Doubt about NAPI_GRO_CB(skb)->is_atomic in tcpv4 gro process

2017-12-20 Thread Yunsheng Lin
Hi, all I have some doubt about NAPI_GRO_CB(skb)->is_atomic when analyzing the tcpv4 gro process: Firstly we set NAPI_GRO_CB(skb)->is_atomic to 1 in dev_gro_receive: https://elixir.free-electrons.com/linux/v4.15-rc4/source/net/core/dev.c#L4838 And then in inet_gro_receive, we check the