netdev - Re: Receive Side Support (RSS) - Adding support into the kernel

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Date:	Sat, 22 Nov 2008 17:04:29 +0000
From:	"Andrew Brampton" <brampton@...il.com>
To:	netdev@...r.kernel.org
Subject: Re: Receive Side Support (RSS) - Adding support into the kernel

2008/11/21 David Miller <davem@...emloft.net>:
> From: "Andrew Brampton" <brampton@...il.com>
> Date: Fri, 21 Nov 2008 17:48:22 +0000
>
>> Hi,
>> Recently I've been interested in receive side support (RSS)[1], the
>
> It's receive side "scaling", not "support".
>
>> There are three RSS settings which can be configured
>> 1) Which fields of the packet get hashed.
>> 2) The key used by the hashing algorithm
>> 3) The indirection table, which is used to map a 7bit hash value to a
>> particular core.
>
> We already have an ethtool interface for configuring aspects of this,
> with more knobs on the way.
>

Well thanks David, and Ben for your input. I am aware that the S in
RSS was for scaling, I obviously had a error between my brain and my
keyboard.

Anyway, I look forward to the changes appearing in ethtool, and if I
see a opportunity to help out, then I will offer my assistance.
Perhaps I'll try and add the ethtool rx_hash support to the ixgbe
drivers (since I have a couple of these cards). I guess I'll speak to
the Intel guys about that.

thanks for your time
Andrew
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