netdev - Setting RPS affinities from network driver

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Message-ID: <CA+sq2CeC89YfaTM18JR9dFOoNAbohGk=gFXSkM_4q2oySB12GA@mail.gmail.com>
Date:	Wed, 18 Feb 2015 11:46:50 +0530
From:	Sunil Kovvuri <sunil.kovvuri@...il.com>
To:	netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>
Subject: Setting RPS affinities from network driver

Hi,

I am writing a network driver for a multicore SOC with a on-board
network interface and would like to set RPS affinities from driver by
default. So that the network performance is good with whatever driver
supplied. Ofcourse these can be further adjusted from userspace
anyways.

Is there a way to set RPS settings from driver itself ?
The only issue i am seeing is while setting 'rps_needed' key.

static_key_slow_inc(&rps_needed);

Currently this is not exported, so having issues while compiling
driver as module.

If i export this symbol, will it be acceptable ?

Thanks,
Sunil.
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