netdev - Re: Question on how to select specific tx queues for tx multiqueue in 2.6.27

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Message-Id: <20080813.151102.203389904.davem@davemloft.net>
Date:	Wed, 13 Aug 2008 15:11:02 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	alexander.h.duyck@...el.com
Cc:	netdev@...r.kernel.org, shemminger@...l.org
Subject: Re: Question on how to select specific tx queues for tx multiqueue
 in 2.6.27

From: "Duyck, Alexander H" <alexander.h.duyck@...el.com>
Date: Wed, 13 Aug 2008 14:35:55 -0700

> At this point it appears 2.6.27 broke something that used to work in
> 2.6.2[3456], what should we do at this point to get multiqueue tx
> back to having the same user space configuration that worked before?

You can write a qdisc that does these things if you wish.
I'm happy to accept patches.  The previous stuff was totally
a joke so there is no reason that I have to spend the time to
replace it since I make the TX multiqueue stuff actually useful.

On the front end we will have a simply ethtool interface that can
select from a small fixed set of hashing algorithms.  Two that will
definitely be there is the current hash function and one based upon
smp_processor_id().
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