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Jakub Kicinski
6873465c19
Louis Peens says:
====================
nfp: flower: add support for multi-zone conntrack
This series add changes to support offload of connection tracking across
multiple zones. Previously the driver only supported offloading of a
single goto_chain, spanning a single zone. This was implemented by
merging a pre_ct rule, post_ct rule and the nft rule. This series
provides updates to let the original post_ct rule act as the new pre_ct
rule for a next set of merges if it contains another goto and
conntrack action. In pseudo-tc rule format this adds support for:
ingress chain 0 proto ip flower
action ct zone 1 pipe action goto 1
ingress chain 1 proto ip flower ct_state +tr+new ct_zone 1
action ct_clear pipe action ct zone 2 pipe action goto 2
ingress chain 1 proto ip flower ct_state +tr+est ct_zone 1
action ct_clear pipe action ct zone 2 pipe action goto 2
ingress chain 2 proto ip flower ct_state +tr+new ct_zone 2
action mirred egress redirect dev ...
ingress chain 2 proto ip flower ct_state +tr+est ct_zone 2
action mirred egress redirect dev ...
This can continue for up to a maximum of 4 zone recirculations.
The first few patches are some smaller preparation patches while the
last one introduces the functionality.
====================
Link: https://lore.kernel.org/r/20230314063610.10544-1-louis.peens@corigine.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linux kernel
============
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