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authorNeale Ranns <nranns@cisco.com>2017-03-23 06:46:01 -0700
committerDamjan Marion <dmarion.lists@gmail.com>2017-03-29 13:00:52 +0000
commit04a75e3230ab71248fc29a56b9f64bdaee0c17ac (patch)
tree85977ecfdf1c4002451cbbcf075694ae1ba1173c /src/vnet/session
parent9a69a6095f67b8979a02f128f44e449889454273 (diff)
Mtrie optimisations
1 - make the default route non-special, i.e. like any other less specific route. Consequently, all buckets have a valid valid index of either a leaf or a ply. Checks for special indeices in the data-path can thus be removed. 2 - since all leaves are now 'real' i.e. they represent a real load-balance object, to tell if a ply slot is 'empty' requeirs chekcing that the prefix length of the leaf occupying the slot is slot than the minium value for that ply. 3 - when removing a leaf find the cover first, then recurse down the ply and replace the old leaf with the cover. This saves us a ply walk. Change-Id: Idd523019e8bb1b6ef527b1f5279a5e24bcf18332 Signed-off-by: Neale Ranns <nranns@cisco.com>
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