From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ben Pfaff <blp@nicira.com>
Subject: Re: [rfc] Merging the Open vSwitch datapath
Date: Mon, 30 Aug 2010 11:33:28 -0700
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Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
	Jesse Gross <jesse@nicira.com>,
	Stephen Hemminger <shemminger@linux-foundation.org>,
	Chris Wright <chrisw@sous-sol.org>,
	Herbert Xu <herbert@gondor.apana.org.au>,
	Arnd Bergmann <arnd@arndb.de>,
	David Miller <davem@davemloft.net>
To: "Rose, Gregory V" <gregory.v.rose@intel.com>
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[restoring CCs that I inadvertently busted upthread]

On Mon, Aug 30, 2010 at 11:26:17AM -0700, Rose, Gregory V wrote:
> >From: netdev-owner@vger.kernel.org [mailto:netdev-owner@vger.kernel.org]
> >On Behalf Of Ben Pfaff
> >
> >Simon Horman <horms@verge.net.au> writes:
> >
> >>    * Possible use of netlink for user-space interface
> >
> >I'm working on this one this week, for what it's worth.
> 
> I just want to put in a plug for the netlink interface.  For NICs with
> EVB we'll need it.

Off-hand, the main reasons to use Netlink, instead of the existing
character device interface, are that Netlink is easier to extend and
that it should reduce or eliminate the 32-to-64 bit compat layer
currently in the Open vSwitch tree.

Why will NICs with EVB require Netlink for the Open vSwitch interface?