Merge branch 'mlxsw-Implement-periodic-ERP-rehash'

Merge branch 'mlxsw-Implement-periodic-ERP-rehash'

Ido Schimmel says:

====================
mlxsw: Implement periodic ERP rehash

Currently, an ERP set is created for each region according to rules
inserted and order of their insertion. However that might lead to
suboptimal ERP sets and possible unnecessary spillage into C-TCAM.
This patchset aims to fix this problem and introduces periodical checking
of used ERP sets and in case a better ERP set is possible for the given
set of rules, it rehashes the region to use the better ERP set.

Patch 1 prepares devlink params infra in order to fix the
        init/fini sequences.
Patch 2 implements hints infra in objagg library.
Patch 3 fixes a typo
Patch 4 adds number of root objects directly into objagg stats.
Patches 5-7 do split of multiple structs in Spectrum TCAM code.
Patch 8 introduces initial implementation of ERP rehash logic,
         according to objagg hints.
Patch 9 adds hints priv passing trought the layers.
Patch 10 adds multi field into PAGT reg. (new patch)
Patch 11 implements actual region rules migration in TCAM code.
Patch 12 adds a devlink param so user is able to control
         rehash interval.
Patch 13 adds couple of tracepoints in order to track
         rehash procedures.
Patch 14 adds a simple selftest to test region rehash.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>