Re: [PATCH rdma-next 0/2] RDMA/irdma: Preserve fast-registration IOVAs and simplify SQ posting

[Jacob Moroni]

Reviewed-by: Jacob Moroni <jmoroni@xxxxxxxxxx>


On Thu, Sep 3, 2026 at 7:39 AM Leon Romanovsky <leon@xxxxxxxxxx> wrote:
>
> Fast-registration IOVAs are u64 hardware values, but irdma passes them
> through pointer-sized types. This truncates the upper bits on 32-bit
> kernels and can program the wrong WQE base address.
>
> Preserve the full IOVA throughout fast registration. Also remove post_sq
> controls from QP flush and fast registration because every current call
> path requests the corresponding send queue to be posted.
>
> Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx>
> ---
> Leon Romanovsky (2):
>       RDMA/irdma: Preserve fast-registration IOVA on 32-bit
>       RDMA/irdma: Remove unused post_sq arguments
>
>  drivers/infiniband/hw/irdma/ctrl.c   | 23 +++++++----------------
>  drivers/infiniband/hw/irdma/hw.c     |  2 --
>  drivers/infiniband/hw/irdma/protos.h |  3 +--
>  drivers/infiniband/hw/irdma/type.h   |  7 ++-----
>  drivers/infiniband/hw/irdma/verbs.c  |  7 +++----
>  5 files changed, 13 insertions(+), 29 deletions(-)
> ---
> base-commit: 6ea2157ce8c7497a2862bd3579a987afe6b129ed
> change-id: 20260903-64-bit-iova-is-silently-truncated-to-f29be6986041
>
> Best regards,
> --
> Leon Romanovsky <leonro@xxxxxxxxxx>
>
>