Re: [PATCH rdma-next v2] RDMA/mlx5: Expose private query port

[Yishai Hadas <yishaih@nvidia.com>]

On 4/11/2021 2:43 PM, Leon Romanovsky wrote:
> On Thu, Apr 08, 2021 at 03:54:12PM -0300, Jason Gunthorpe wrote:
>> On Thu, Apr 01, 2021 at 11:50:04AM +0300, Leon Romanovsky wrote:
>>> 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 <maorg@nvidia.com>
>>> 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
>>>   * Missed sw_owner check for CX-6 device, fixed it.
>>> v0: https://lore.kernel.org/linux-api/20210318135221.681014-1-leon@kernel.org
>>> ---
>>>   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