[v4,00/23] net/cnxk: support for port representors

  Introducing port representor support to CNXK drivers by adding virtual ethernet
ports providing a logical representation in DPDK for physical function(PF) or
SR-IOV virtual function (VF) devices for control and monitoring.

These port representor ethdev instances can be spawned on an as needed basis
through configuration parameters passed to the driver of the underlying
base device using devargs ``-a <base PCI BDF>,representor=pf*vf*``

In case of exception path (i.e. until the flow definition is offloaded to the
hardware), packets transmitted by the VFs shall be received by these
representor port, while packets transmitted by representor ports shall be
received by respective VFs.

On receiving the VF traffic via these representor ports, applications holding
these representor ports can decide to offload the traffic flow into the HW.
Henceforth the matching traffic shall be directly steered to the respective
VFs without being received by the application.

Current virtual representor port PMD supports following operations:

- Get represented port statistics
- Flow operations - create, validate, destroy, query, flush, dump

Changes since V3:
* Added support for more platforms
* Added xstats support for representor port stats

Changes since V2:
* Moved devargs parsing logic to common code and sent as separate series
* Documentation updated
* Addressed comments from V2

Changes since V1:
* Updated communication layer between representor and represented port.
* Added support for native represented ports
* Port representor and represented port item and action support
* Build failure fixes


Harman Kalra (21):
  common/cnxk: add support for representors
  net/cnxk: implementing eswitch device
  net/cnxk: eswitch HW resource configuration
  net/cnxk: eswitch devargs parsing
  net/cnxk: probing representor ports
  common/cnxk: common NPC changes for eswitch
  common/cnxk: interface to update VLAN TPID
  net/cnxk: eswitch flow configurations
  net/cnxk: eswitch fastpath routines
  net/cnxk: add representor control plane
  common/cnxk: representee notification callback
  net/cnxk: handling representee notification
  net/cnxk: representor ethdev ops
  common/cnxk: get representees ethernet stats
  net/cnxk: ethernet statistics for representor
  common/cnxk: base support for eswitch VF
  net/cnxk: eswitch VF as ethernet device
  net/cnxk: add representor port pattern and action
  net/cnxk: generalise flow operation APIs
  net/cnxk: flow create on representor ports
  net/cnxk: other flow operations

Kiran Kumar K (2):
  common/cnxk: support port representor and represented port
  net/cnxk: add represented port pattern and action

 MAINTAINERS                             |   1 +
 doc/guides/nics/cnxk.rst                |  41 ++
 doc/guides/nics/features/cnxk.ini       |   5 +
 doc/guides/nics/features/cnxk_vec.ini   |   6 +
 doc/guides/nics/features/cnxk_vf.ini    |   6 +
 drivers/common/cnxk/meson.build         |   1 +
 drivers/common/cnxk/roc_api.h           |   3 +
 drivers/common/cnxk/roc_constants.h     |   2 +
 drivers/common/cnxk/roc_dev.c           |  71 ++
 drivers/common/cnxk/roc_dev_priv.h      |   3 +
 drivers/common/cnxk/roc_eswitch.c       | 389 +++++++++++
 drivers/common/cnxk/roc_eswitch.h       |  59 ++
 drivers/common/cnxk/roc_mbox.c          |   2 +
 drivers/common/cnxk/roc_mbox.h          |  91 ++-
 drivers/common/cnxk/roc_nix.c           |  46 +-
 drivers/common/cnxk/roc_nix.h           |   4 +
 drivers/common/cnxk/roc_nix_priv.h      |  12 +-
 drivers/common/cnxk/roc_nix_vlan.c      |  23 +-
 drivers/common/cnxk/roc_npc.c           | 110 ++-
 drivers/common/cnxk/roc_npc.h           |  24 +-
 drivers/common/cnxk/roc_npc_mcam.c      |  67 +-
 drivers/common/cnxk/roc_npc_parse.c     |  28 +-
 drivers/common/cnxk/roc_npc_priv.h      |   5 +-
 drivers/common/cnxk/roc_platform.c      |   2 +
 drivers/common/cnxk/roc_platform.h      |   4 +
 drivers/common/cnxk/version.map         |  14 +
 drivers/net/cnxk/cn10k_ethdev.c         |   3 +
 drivers/net/cnxk/cnxk_eswitch.c         | 800 ++++++++++++++++++++++
 drivers/net/cnxk/cnxk_eswitch.h         | 212 ++++++
 drivers/net/cnxk/cnxk_eswitch_devargs.c | 125 ++++
 drivers/net/cnxk/cnxk_eswitch_flow.c    | 454 +++++++++++++
 drivers/net/cnxk/cnxk_eswitch_rxtx.c    | 211 ++++++
 drivers/net/cnxk/cnxk_ethdev.c          |  41 +-
 drivers/net/cnxk/cnxk_ethdev.h          |   3 +
 drivers/net/cnxk/cnxk_ethdev_ops.c      |   4 +
 drivers/net/cnxk/cnxk_flow.c            | 826 +++++++++++++++++++----
 drivers/net/cnxk/cnxk_flow.h            |  27 +-
 drivers/net/cnxk/cnxk_link.c            |   3 +-
 drivers/net/cnxk/cnxk_rep.c             | 618 +++++++++++++++++
 drivers/net/cnxk/cnxk_rep.h             | 150 +++++
 drivers/net/cnxk/cnxk_rep_flow.c        | 815 +++++++++++++++++++++++
 drivers/net/cnxk/cnxk_rep_msg.c         | 827 +++++++++++++++++++++++
 drivers/net/cnxk/cnxk_rep_msg.h         | 169 +++++
 drivers/net/cnxk/cnxk_rep_ops.c         | 848 ++++++++++++++++++++++++
 drivers/net/cnxk/meson.build            |   8 +
 45 files changed, 6943 insertions(+), 220 deletions(-)
 create mode 100644 drivers/common/cnxk/roc_eswitch.c
 create mode 100644 drivers/common/cnxk/roc_eswitch.h
 create mode 100644 drivers/net/cnxk/cnxk_eswitch.c
 create mode 100644 drivers/net/cnxk/cnxk_eswitch.h
 create mode 100644 drivers/net/cnxk/cnxk_eswitch_devargs.c
 create mode 100644 drivers/net/cnxk/cnxk_eswitch_flow.c
 create mode 100644 drivers/net/cnxk/cnxk_eswitch_rxtx.c
 create mode 100644 drivers/net/cnxk/cnxk_rep.c
 create mode 100644 drivers/net/cnxk/cnxk_rep.h
 create mode 100644 drivers/net/cnxk/cnxk_rep_flow.c
 create mode 100644 drivers/net/cnxk/cnxk_rep_msg.c
 create mode 100644 drivers/net/cnxk/cnxk_rep_msg.h
 create mode 100644 drivers/net/cnxk/cnxk_rep_ops.c