[PATCH mlx5-next 00/10] mlx5: Move data direct infrastructure to mlx5_core

[Tariq Toukan <tariqt@nvidia.com>]

Hi,

Data direct support currently lives in mlx5_ib, which owns the data
direct PCI driver, device matching and resource management. To prepare
for data direct support in netdev, move this infrastructure to mlx5_core
and provide a common interface for its consumers.

The series first replaces the direct IB unbind callback with a blocking
notifier chain, allowing multiple consumers to receive unbind events.
It then separates consumer registration from initialization,
consolidates the per-device state and resources, and keeps IB-specific
locking and MR teardown in mlx5_ib.

With these preparations in place, the final patch moves the shared
implementation and PCI driver to mlx5_core. Data direct initialization
and resource creation run during core load, before consumers attach;
cleanup runs during core unload, after consumers detach.

The data direct PCI driver is also explicitly named "mlx5_dd", replacing
the previous "mlx5_ib" name derived from KBUILD_MODNAME.

This series by Dragos prepares the shared infrastructure for netdev
support.  The netdev consumer will follow in a separate series.

Regards,
Tariq

Dragos Tatulea (10):
  RDMA/mlx5: Notify data direct users via a notifier chain on unbind
  RDMA/mlx5: Add mlx5_data_direct_supported() helper
  RDMA/mlx5: Make the data direct VUID query self-contained
  RDMA/mlx5: Give the data direct PCI driver a proper name
  RDMA/mlx5: Move and rename data direct resource functions
  RDMA/mlx5: Add new registration stage for data direct users
  RDMA/mlx5: Extract IB specific lock out of data direct
  RDMA/mlx5: Consolidate data direct state into one object
  RDMA/mlx5: Pull data_direct resource creation in init phase
  mlx5: Move data direct implementation to mlx5_core

 drivers/infiniband/hw/mlx5/Makefile           |   1 -
 drivers/infiniband/hw/mlx5/cmd.c              |  21 -
 drivers/infiniband/hw/mlx5/cmd.h              |   2 -
 drivers/infiniband/hw/mlx5/data_direct.c      | 227 ----------
 drivers/infiniband/hw/mlx5/data_direct.h      |  23 -
 drivers/infiniband/hw/mlx5/main.c             | 144 +------
 drivers/infiniband/hw/mlx5/mlx5_ib.h          |  18 +-
 drivers/infiniband/hw/mlx5/mr.c               |   7 +-
 drivers/infiniband/hw/mlx5/odp.c              |   2 +-
 drivers/infiniband/hw/mlx5/std_types.c        |   3 +-
 drivers/infiniband/hw/mlx5/umr.c              |  11 +-
 .../net/ethernet/mellanox/mlx5/core/Makefile  |   2 +-
 .../ethernet/mellanox/mlx5/core/data_direct.c | 402 ++++++++++++++++++
 .../net/ethernet/mellanox/mlx5/core/main.c    |  15 +
 .../ethernet/mellanox/mlx5/core/mlx5_core.h   |   5 +
 include/linux/mlx5/data_direct.h              |  47 ++
 include/linux/mlx5/driver.h                   |   8 +
 17 files changed, 517 insertions(+), 421 deletions(-)
 delete mode 100644 drivers/infiniband/hw/mlx5/data_direct.c
 delete mode 100644 drivers/infiniband/hw/mlx5/data_direct.h
 create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/data_direct.c
 create mode 100644 include/linux/mlx5/data_direct.h


base-commit: 36b1d3299d0b6aa51485cc9a79b8d94948d5f3d4
-- 
2.44.0