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

[Junxian Huang]

On 2023/9/26 17:30, Leon Romanovsky wrote:
> On Wed, Sep 20, 2023 at 11:30:05AM +0800, Junxian Huang wrote:
>> From: Yangyang Li <liyangyang20@xxxxxxxxxx>
>>
>> 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@xxxxxxxxxx>
>> Signed-off-by: Junxian Huang <huangjunxian6@xxxxxxxxxxxxx>
>> ---
>>  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

Yes. I'll resubmit soon.