mbox series

[RFC,0/7] RDMA/hns: Add support for Dynamic Context Attachment

Message ID 1610706138-4219-1-git-send-email-liweihang@huawei.com (mailing list archive)
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Series RDMA/hns: Add support for Dynamic Context Attachment | expand

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Weihang Li Jan. 15, 2021, 10:22 a.m. UTC 
The hip09 introduces the DCA(Dynamic Context Attachment) feature which
supports many RC QPs to share the WQE buffer in a memory pool. If a QP
enables DCA feature, the WQE's buffer will not be allocated when creating
but when the users start to post WRs. This will reduce the memory
consumption when there are too many QPs are inactive.

Xi Wang (7):
  RDMA/hns: Introduce DCA for RC QP
  RDMA/hns: Add method for shrinking DCA memory pool
  RDMA/hns: Configure DCA mode for the userspace QP
  RDMA/hns: Add method for attaching WQE buffer
  RDMA/hns: Setup the configuration of WQE addressing to QPC
  RDMA/hns: Add method to detach WQE buffer
  RDMA/hns: Add method to query WQE buffer's address

 drivers/infiniband/hw/hns/Makefile          |    2 +-
 drivers/infiniband/hw/hns/hns_roce_dca.c    | 1264 +++++++++++++++++++++++++++
 drivers/infiniband/hw/hns/hns_roce_dca.h    |   68 ++
 drivers/infiniband/hw/hns/hns_roce_device.h |   32 +
 drivers/infiniband/hw/hns/hns_roce_hw_v2.c  |  223 ++++-
 drivers/infiniband/hw/hns/hns_roce_hw_v2.h  |    3 +
 drivers/infiniband/hw/hns/hns_roce_main.c   |   27 +-
 drivers/infiniband/hw/hns/hns_roce_qp.c     |  119 ++-
 include/uapi/rdma/hns-abi.h                 |   60 ++
 9 files changed, 1751 insertions(+), 47 deletions(-)
 create mode 100644 drivers/infiniband/hw/hns/hns_roce_dca.c
 create mode 100644 drivers/infiniband/hw/hns/hns_roce_dca.h