netdev - Re: Allow controlling NAPI weight with sysfs

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Message-ID: <1426281309.11398.192.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Fri, 13 Mar 2015 14:15:09 -0700
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Ronald Pina <pinaronald@...il.com>
Cc:	netdev <netdev@...r.kernel.org>, stephen@...workplumber.org
Subject: Re: Allow controlling NAPI weight with sysfs

On Fri, 2015-03-13 at 21:49 +0100, Ronald Pina wrote:
> Hello
> 
> I am working to allow controlling napi weight on kernel 3.18
> If may i ask, is it achievable since NAPI interface structure in
> current kernels is managed by the driver?
> 
> This feature was presented on kernel 2.6.12, here is a patch that can show
>  how was that implemented:
> 
> http://marc.info/?l=linux-netdev&m=111773621018096&w=2
> 
> As soon as on later kernel the weight was inserted on napi_struct, the
> weight wasn't exposed any more for every interface wth sysfs.
> 
> Please, any help or idea is very appreciated.

You did not explain why you would need to tweak weights from sysfs.



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