Merge branch 'pps-policing'

Simon Horman says:

====================
net/sched: act_police: add support for packet-per-second policing

This series enhances the TC policer action implementation to allow a
policer action instance to enforce a rate-limit based on
packets-per-second, configurable using a packet-per-second rate and burst
parameters.

In the hope of aiding review this is broken up into three patches.

* [PATCH 1/3] flow_offload: add support for packet-per-second policing

  Add support for this feature to the flow_offload API that is used to allow
  programming flows, including TC rules and their actions, into hardware.

* [PATCH 2/3] flow_offload: reject configuration of packet-per-second policing in offload drivers

  Teach all exiting users of the flow_offload API that allow offload of
  policer action instances to reject offload if packet-per-second rate
  limiting is configured: none support it at this time

* [PATCH 3/3] net/sched: act_police: add support for packet-per-second policing

  With the above ground-work in place add the new feature to the TC policer
  action itself

With the above in place the feature may be used.

As follow-ups we plan to provide:
* Corresponding updates to iproute2
* Corresponding self tests (which depend on the iproute2 changes)
* Hardware offload support for the NFP driver

Key changes since v2:
* Added patches 1 and 2, which makes adding patch 3 safe for existing
  hardware offload of the policer action
* Re-worked patch 3 so that a TC policer action instance may be configured
  for packet-per-second or byte-per-second rate limiting, but not both.
* Corrected kdoc usage
====================

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

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