netdev - Re: [PATCH net-next v4 3/3] net/smc: Fallback when handshake workqueue congested

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Message-ID: <f1ed4d54-d658-c668-99af-9994a634baf3@linux.alibaba.com>
Date:   Mon, 7 Feb 2022 17:50:44 +0800
From:   "D. Wythe" <alibuda@...ux.alibaba.com>
To:     Karsten Graul <kgraul@...ux.ibm.com>
Cc:     kuba@...nel.org, davem@...emloft.net, netdev@...r.kernel.org,
        linux-s390@...r.kernel.org, linux-rdma@...r.kernel.org,
        Tony Lu <tonylu@...ux.alibaba.com>
Subject: Re: [PATCH net-next v4 3/3] net/smc: Fallback when handshake
 workqueue congested


The main communication in v2 series is about adding a dynamic control 
for auto fallback to TCP. I will soon add a new patch to implements this 
in v5 series, or modify it in curret patch. Which one do you recommend?

Look forward to your suggestions.

Thanks.


在 2022/2/7 下午3:56, Karsten Graul 写道:
> On 07/02/2022 07:24, D. Wythe wrote:
>> From: "D. Wythe" <alibuda@...ux.alibaba.com>
>>
>> This patch intends to provide a mechanism to allow automatic fallback to
>> TCP according to the pressure of SMC handshake process. At present,
>> frequent visits will cause the incoming connections to be backlogged in
>> SMC handshake queue, raise the connections established time. Which is
>> quite unacceptable for those applications who base on short lived
>> connections.
> 
> I hope I didn't miss any news, but with your latest reply to the v2 series you
> questioned the config option in this v4 patch, so this is still work in progress, right?