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authorNeale Ranns <nranns@cisco.com>2020-03-31 09:21:29 -0400
committerDamjan Marion <dmarion@me.com>2020-05-04 17:09:34 +0000
commit4ec36c5535849a4e456ed99b57968d54d5e03b62 (patch)
tree47c807c525858db02f7d1e0e4df32b14441ed5c8 /doxygen
parentb723ccf95ffd8581be15e0752eac2c5f7233b340 (diff)
fib: midchain adjacency optimisations
Type: improvement - inline some common encap fixup functions into the midchain rewrite node so we don't incur the cost of the virtual function call - change the copy 'guess' from ethernet_header (which will never happen) to an ip4 header - add adj-midchain-tx to multiarch sources - don't run adj-midchain-tx as a feature, instead put this node as the adj's next and at the end of the feature arc. - cache the feature arc config index (to save the cache miss going to fetch it) - don't check if features are enabled when taking the arc (since we know they are) the last two changes will also benefit normal adjacencies taking the arc (i.e. for NAT, ACLs, etc) for IPSec: - don't run esp_encrypt as a feature, instead when required insert this node into the adj's next and into the end of the feature arc. this implies that encrypt is always 'the last feature' run, which is symmetric with decrypt always being the first. - esp_encrpyt for tunnels has adj-midchain-tx as next node Change-Id: Ida0af56a704302cf2d7797ded5f118a781e8acb7 Signed-off-by: Neale Ranns <nranns@cisco.com>
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