On 4/11/2021 2:43 PM, Leon Romanovsky wrote:

On Thu, Apr 08, 2021 at 03:54:12PM -0300, Jason Gunthorpe wrote:

quoted

On Thu, Apr 01, 2021 at 11:50:04AM +0300, Leon Romanovsky wrote:

quoted

From: Mark Bloch <mbloch@nvidia.com>

Expose a non standard query port via IOCTL that will be used to expose
port attributes that are specific to mlx5 devices.

The new interface receives a port number to query and returns a
structure that contains the available attributes for that port.
This will be used to fill the gap between pure DEVX use cases
and use cases where a kernel needs to inform userspace about
various kernel driver configurations that userspace must use
in order to work correctly.

Flags is used to indicate which fields are valid on return.

MLX5_IB_UAPI_QUERY_PORT_VPORT:
	The vport number of the queered port.

MLX5_IB_UAPI_QUERY_PORT_VPORT_VHCA_ID:
	The VHCA ID of the vport of the queered port.

MLX5_IB_UAPI_QUERY_PORT_VPORT_STEERING_ICM_RX:
	The vport's RX ICM address used for sw steering.

MLX5_IB_UAPI_QUERY_PORT_VPORT_STEERING_ICM_TX:
	The vport's TX ICM address used for sw steering.

MLX5_IB_UAPI_QUERY_PORT_VPORT_REG_C0:
	The metadata used to tag egress packets of the vport.

MLX5_IB_UAPI_QUERY_PORT_ESW_OWNER_VHCA_ID:
	The E-Switch owner vhca id of the vport.

Reviewed-by: Maor Gottlieb <redacted>
Signed-off-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
Changelog:
v2:
  * Changed __u64 to be __aligned_u64 in the uapi header
v1: https://lore.kernel.org/linux-api/20210322093932.398466-1-leon@kernel.org (local)
  * Missed sw_owner check for CX-6 device, fixed it.
v0: https://lore.kernel.org/linux-api/20210318135221.681014-1-leon@kernel.org (local)
---
  drivers/infiniband/hw/mlx5/std_types.c    | 177 ++++++++++++++++++++++
  include/uapi/rdma/mlx5_user_ioctl_cmds.h  |   9 ++
  include/uapi/rdma/mlx5_user_ioctl_verbs.h |  25 +++
  3 files changed, 211 insertions(+)

Where is the rdma-core part of this? Did I miss it someplace?

Ne, the rdma-core series wasn't sent because of requestedchanges
in the PR https://github.com/linux-rdma/rdma-core/pull/958.

The matching PR is now available here [1].

[1] https://github.com/linux-rdma/rdma-core/pull/977

Yishai