Re: [for-next v4 0/5] ionic: RDMA completion timestamping support

[Abhijit Gangurde <abhijit.gangurde@amd.com>]

Thanks Leon. This is already addressed in 
https://patchwork.kernel.org/project/linux-rdma/patch/20260617132605.1888205-3-abhijit.gangurde@amd.com/ 
which was sent after this series. Happy to rebase if needed.


On 7/16/26 13:31, Leon Romanovsky wrote:
> On Wed, Jul 15, 2026 at 06:38:06PM +0530, Abhijit Gangurde wrote:
>> Hi Jason, Jakub,
>>
>> Gentle ping — if there are no further concerns, could this series be merged
>> through the rdma tree?
> Jason requested converting any driver that extends udata to
> use uverbs_robust_udata.
>
> https://lore.kernel.org/linux-rdma/13-v3-bd56dd443069+49-bnxt_re_uapi_jgg@nvidia.com/
>
> Thanks
>
>> Thanks,
>> Abhijit
>>
>> On 6/10/26 21:12, Abhijit Gangurde wrote:
>>> Hi,
>>>
>>> This series adds RDMA completion timestamp support for ionic.
>>>
>>> It enables PHC registration for RDMA timestamp capability, exposes a PHC
>>> state page for safe user-space reads, maps that PHC state through RDMA
>>> ucontext mmap, and extends the RDMA CQE format to carry completion
>>> timestamps.
>>>
>>> With this, user space can read completion timestamps and convert them to
>>> wall time with low overhead.
>>>
>>> Provider's PR: https://github.com/linux-rdma/rdma-core/pull/1724
>>>
>>> v4:
>>>     - Added alias mapping of mlx5_ib_clock_info to ib_uverbs_clock_info
>>> v3:
>>>     - Renamed ib_uverbs_phc_state to ib_uverbs_clock_info
>>>     - Moved mlx5 to use the common clock info structure
>>>     - Addressed review feedback from Sashiko
>>>     - https://lore.kernel.org/linux-rdma/20260606050003.3648306-1-abhijit.gangurde@amd.com/
>>> v2:
>>>     - changed ionic_phc_state to ib_uverbs_phc_state and moved it under
>>>       ib_user_verbs.h
>>>     - https://lore.kernel.org/linux-rdma/20260512092623.1157199-1-abhijit.gangurde@amd.com/
>>> v1:
>>>     - https://lore.kernel.org/all/20260401102501.3395305-1-abhijit.gangurde@amd.com/
>>>
>>> Abhijit Gangurde (5):
>>>     net: ionic: register PHC for rdma timestamping
>>>     net: ionic: Add PHC state page for user space access
>>>     RDMA/ionic: map PHC state into user space
>>>     RDMA/ionic: add completion timestamp to CQE format
>>>     RDMA/mlx5: move mlx5 clock info to common struct ib_uverbs_clock_info
>>>
>>>    .../infiniband/hw/ionic/ionic_controlpath.c   | 34 ++++++++++
>>>    drivers/infiniband/hw/ionic/ionic_datapath.c  | 43 ++++++-------
>>>    drivers/infiniband/hw/ionic/ionic_fw.h        | 12 +++-
>>>    drivers/infiniband/hw/ionic/ionic_ibdev.h     |  2 +
>>>    drivers/infiniband/hw/ionic/ionic_lif_cfg.c   |  2 +
>>>    drivers/infiniband/hw/ionic/ionic_lif_cfg.h   |  1 +
>>>    .../ethernet/pensando/ionic/ionic_ethtool.c   | 12 ++--
>>>    .../net/ethernet/pensando/ionic/ionic_if.h    |  1 +
>>>    .../net/ethernet/pensando/ionic/ionic_lif.c   |  5 +-
>>>    .../net/ethernet/pensando/ionic/ionic_lif.h   |  3 +-
>>>    .../net/ethernet/pensando/ionic/ionic_phc.c   | 63 ++++++++++++++++---
>>>    include/uapi/rdma/ib_user_verbs.h             | 33 ++++++++++
>>>    include/uapi/rdma/ionic-abi.h                 |  1 +
>>>    include/uapi/rdma/mlx5-abi.h                  | 15 ++---
>>>    14 files changed, 179 insertions(+), 48 deletions(-)
>>>