Re: [PATCH for-next] RDMA/hns: Support SRQ record doorbell

[Leon Romanovsky <leon@kernel.org>]

On Wed, Sep 20, 2023 at 11:30:05AM +0800, Junxian Huang wrote:
> From: Yangyang Li <liyangyang20@huawei.com>
> 
> Compared with normal doorbell, using record doorbell can shorten the
> process of ringing the doorbell and reduce the latency.
> 
> Add a flag HNS_ROCE_CAP_FLAG_SRQ_RECORD_DB to allow FW to
> enable/disable SRQ record doorbell.
> 
> If the flag above is set, allocate the dma buffer for SRQ record
> doorbell and write the buffer address into SRQC during SRQ creation.
> 
> For userspace SRQ, add a flag HNS_ROCE_RSP_SRQ_CAP_RECORD_DB to notify
> userspace whether the SRQ record doorbell is enabled.
> 
> Signed-off-by: Yangyang Li <liyangyang20@huawei.com>
> Signed-off-by: Junxian Huang <huangjunxian6@hisilicon.com>
> ---
>  drivers/infiniband/hw/hns/hns_roce_device.h |  3 +
>  drivers/infiniband/hw/hns/hns_roce_hw_v2.c  | 30 ++++++--
>  drivers/infiniband/hw/hns/hns_roce_srq.c    | 85 ++++++++++++++++++++-
>  include/uapi/rdma/hns-abi.h                 | 13 +++-
>  4 files changed, 120 insertions(+), 11 deletions(-)

Junxian, do you plan to resubmit it this patch to fix kbuild error?

Thanks