diff options
| author | Yangyang Li <liyangyang20@huawei.com> | 2023-09-26 21:00:26 +0800 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2023-10-02 11:47:08 +0300 |
| commit | c9813b0b9992eab01a47ad8d10f0add13f898692 (patch) | |
| tree | e09e97292ca45a57782417aa21a5a105948455fe /include/uapi/rdma | |
| parent | 8dc0fd2f5693ab71f84fb16339c483999a909ab0 (diff) | |
RDMA/hns: Support SRQ record doorbell
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>
Link: https://lore.kernel.org/r/20230926130026.583088-1-huangjunxian6@hisilicon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Diffstat (limited to 'include/uapi/rdma')
| -rw-r--r-- | include/uapi/rdma/hns-abi.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/include/uapi/rdma/hns-abi.h b/include/uapi/rdma/hns-abi.h index 2e68a8b0c92c..ce0f37f83416 100644 --- a/include/uapi/rdma/hns-abi.h +++ b/include/uapi/rdma/hns-abi.h @@ -52,15 +52,25 @@ struct hns_roce_ib_create_cq_resp { __aligned_u64 cap_flags; }; +enum hns_roce_srq_cap_flags { + HNS_ROCE_SRQ_CAP_RECORD_DB = 1 << 0, +}; + +enum hns_roce_srq_cap_flags_resp { + HNS_ROCE_RSP_SRQ_CAP_RECORD_DB = 1 << 0, +}; + struct hns_roce_ib_create_srq { __aligned_u64 buf_addr; __aligned_u64 db_addr; __aligned_u64 que_addr; + __u32 req_cap_flags; /* Use enum hns_roce_srq_cap_flags */ + __u32 reserved; }; struct hns_roce_ib_create_srq_resp { __u32 srqn; - __u32 reserved; + __u32 cap_flags; /* Use enum hns_roce_srq_cap_flags */ }; struct hns_roce_ib_create_qp { |