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

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

Hi Jason, Jakub,

Gentle ping — if there are no further concerns, could this series be 
merged through the rdma tree?

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(-)
>