[PATCH v4 00/15] mlx5/vdpa: optimize live migration time

[Li Zhang]

Allow the driver to use internal threads to
obtain fast configuration.
All the threads will be open on the same core of
the event completion queue scheduling thread.

Add max_conf_threads parameter to configure
the maximum number of internal threads in addition to
the caller thread (8 is suggested).
These internal threads to pipeline handle VDPA tasks
in system and shared with all VDPA devices.
Default is 0, don't use internal threads for configuration.

Depends-on: series=21868 ("vdpa/mlx5: improve device shutdown time")
http://patchwork.dpdk.org/project/dpdk/list/?series=21868

RFC ("Add vDPA multi-threads optiomization")
https://patchwork.dpdk.org/project/dpdk/cover/20220408075606.33056-1-lizh@nvidia.com/

V2:
* Drop eal device removal patch in series.
* Add release note in release_22_07.rst.

V3:
* Fix comments about commit log issue.
* Avoid cutting logs.

V4:
* Fix coding style issue

Li Zhang (12):
  vdpa/mlx5: fix usage of capability for max number of virtqs
  common/mlx5: extend virtq modifiable fields
  vdpa/mlx5: pre-create virtq at probe time
  vdpa/mlx5: optimize datapath-control synchronization
  vdpa/mlx5: add multi-thread management for configuration
  vdpa/mlx5: add task ring for MT management
  vdpa/mlx5: add MT task for VM memory registration
  vdpa/mlx5: add virtq creation task for MT management
  vdpa/mlx5: add virtq LM log task
  vdpa/mlx5: add device close task
  vdpa/mlx5: add virtq sub-resources creation
  vdpa/mlx5: prepare virtqueue resource creation

Yajun Wu (3):
  vdpa/mlx5: support pre create virtq resource
  common/mlx5: add DevX API to move QP to reset state
  vdpa/mlx5: support event qp reuse

 doc/guides/rel_notes/release_22_07.rst |   5 +
 doc/guides/vdpadevs/mlx5.rst           |  25 +
 drivers/common/mlx5/mlx5_devx_cmds.c   |  77 ++-
 drivers/common/mlx5/mlx5_devx_cmds.h   |   6 +-
 drivers/common/mlx5/mlx5_prm.h         |  30 +-
 drivers/vdpa/mlx5/meson.build          |   1 +
 drivers/vdpa/mlx5/mlx5_vdpa.c          | 270 ++++++++--
 drivers/vdpa/mlx5/mlx5_vdpa.h          | 152 +++++-
 drivers/vdpa/mlx5/mlx5_vdpa_cthread.c  | 360 ++++++++++++++
 drivers/vdpa/mlx5/mlx5_vdpa_event.c    | 160 ++++--
 drivers/vdpa/mlx5/mlx5_vdpa_lm.c       | 134 +++--
 drivers/vdpa/mlx5/mlx5_vdpa_mem.c      | 270 ++++++----
 drivers/vdpa/mlx5/mlx5_vdpa_steer.c    |  22 +-
 drivers/vdpa/mlx5/mlx5_vdpa_virtq.c    | 654 ++++++++++++++++++-------
 14 files changed, 1779 insertions(+), 387 deletions(-)
 create mode 100644 drivers/vdpa/mlx5/mlx5_vdpa_cthread.c

-- 
2.31.1