netdev - Re: [PATCH v6 1/1] rps: Inspect PPTP encapsulated by GRE to get flow hash

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Date:	Wed, 10 Aug 2016 17:24:50 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	fgao@...ai8.com
Cc:	philipp@...fish-solutions.com, stephen@...workplumber.org,
	pshelar@...ira.com, tom@...bertland.com, aduyck@...antis.com,
	netdev@...r.kernel.org, gfree.wind@...il.com
Subject: Re: [PATCH v6 1/1] rps: Inspect PPTP encapsulated by GRE to get
 flow hash

From: fgao@...ai8.com
Date: Tue,  9 Aug 2016 12:38:24 +0800

> From: Gao Feng <fgao@...ai8.com>
> 
> The PPTP is encapsulated by GRE header with that GRE_VERSION bits
> must contain one. But current GRE RPS needs the GRE_VERSION must be
> zero. So RPS does not work for PPTP traffic.
> 
> In my test environment, there are four MIPS cores, and all traffic
> are passed through by PPTP. As a result, only one core is 100% busy
> while other three cores are very idle. After this patch, the usage
> of four cores are balanced well.
> 
> Signed-off-by: Gao Feng <fgao@...ai8.com>

Applied to net-next, thanks.