On Thu, May 17, 2012 at 09:00:18AM -0700, Ben Pfaff wrote:
> On Thu, May 17, 2012 at 05:59:00PM +0900, Simon Horman wrote:
> > this is a first pass at providing a tun_key which can be used
> > as the basis for flow-based tunnelling. The tun_key includes and
> > replaces the tun_id in both struct ovs_skb_cb and struct sw_tun_key.
> > 
> > In ovs_skb_cb tun_key is a pointer as it is envisaged that it will grow
> > when support for IPv6 to an extent that inlining the structure will result
> > in ovs_skb_cb being larger than the 48 bytes available in skb->cb.
> > 
> > As OVS does not support IPv6 as the outer transport protocol for tunnels
> > the IPv6 portions of this change, which appeared in the previous revision,
> > have been dropped in order to limit the scope and size of this patch.
> > 
> > This patch does not make any effort to retain the existing tun_id behaviour
> > nor does it fully implement flow-based tunnels. As such it it is incomplete
> > and can't be used in its current form (other than to break OVS tunnelling).
> 
> This patch doesn't actually remove OVS_KEY_ATTR_TUN_ID (although it
> renumbers it) or all the references to it.  I'm surprised, what's the
> reasoning there?

I misread your commit message, it's only the internal struct members
you're replacing, not OVS_KEY_ATTR_TUN_ID.  Never mind.
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