The IB SPEC v1.5[1][2] added new RDMA operations (Atomic Write and Flush). This patchset makes SoftRoCE support new RDMA Atomic Write on RC service. I added RDMA Atomic Write API and a rdma_atomic_write example on my rdma-core repository[3]. You can verify the patchset by building and running the rdma_atomic_write example. server: $ ./rdma_atomic_write_server -s [server_address] -p [port_number] client: $ ./rdma_atomic_write_client -s [server_address] -p [port_number] [1]: https://www.infinibandta.org/ibta-specification/ # login required [2]: https://www.infinibandta.org/wp-content/uploads/2021/08/IBTA-Overview-of-IBTA-Volume-1-Release-1.5-and-MPE-2021-08-17-Secure.pptx [3]: https://github.com/yangx-jy/rdma-core BTW: This patchset also needs the following fix. https://www.spinics.net/lists/linux-rdma/msg107838.html Xiao Yang (2): RDMA/rxe: Rename send_atomic_ack() and atomic member of struct resp_res RDMA/rxe: Add RDMA Atomic Write operation drivers/infiniband/sw/rxe/rxe_comp.c | 4 ++ drivers/infiniband/sw/rxe/rxe_opcode.c | 18 ++++++++ drivers/infiniband/sw/rxe/rxe_opcode.h | 3 ++ drivers/infiniband/sw/rxe/rxe_qp.c | 5 ++- drivers/infiniband/sw/rxe/rxe_req.c | 10 +++-- drivers/infiniband/sw/rxe/rxe_resp.c | 59 ++++++++++++++++++++------ drivers/infiniband/sw/rxe/rxe_verbs.h | 2 +- include/rdma/ib_pack.h | 2 + include/rdma/ib_verbs.h | 2 + include/uapi/rdma/ib_user_verbs.h | 2 + 10 files changed, 88 insertions(+), 19 deletions(-) -- 2.23.0
