From: David S. Miller (
Date: Sat Oct 12 2002 - 06:41:37 EST

   From: bert hubert <>
   Date: Sat, 12 Oct 2002 13:17:59 +0200

   On Fri, Oct 11, 2002 at 07:41:08PM -0700, David S. Miller wrote:
> We believe that the whole SPD/SAD mechanism should move
> eventually to a top-level flow cache shared by ipv4 and
> ipv6.
   Is this the proposed stacked route system?

Yes, for output mostly.

Also the idea Alexey and I have to move towards a small
efficient flow cache shared by IPv4/IPv6 plays into this
as well. There are changesets on their way to Linus tonight
which moves ipv4 over to using ipv6's "struct flowi" from
include/net/flow.h as the routing lookup key.

The initial ipsec is intended to be simple, singly linked
lists for the spd/sad databases etc. Making the feature
freeze is pretty important right now, full blown flow cache
is just performance improvement :)
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