[PATCH v2 00/15] mlx5/vdpa: optimize live migration time

[Maxime Coquelin]

Hi Li,

On 6/16/22 04:29, Li Zhang wrote:
> 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/

I just notice there was a RFC that was sent on time because I was not
cc'ed. I thought V1, which arrived on June 6th was targetting v22.11.

Given how late we are in the schedule for v22.07, this series will be
postponed to v22.11.

Regards,
Maxime

> V2:
> * Drop eal device removal patch in series.
> * Add release note in release_22_07.rst.
> 
> 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 in the prob
>    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       | 128 ++++-
>   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, 1776 insertions(+), 384 deletions(-)
>   create mode 100644 drivers/vdpa/mlx5/mlx5_vdpa_cthread.c
>