My colleagues and I would like to apply the fault injection of the Linux to test error handling of RTRS module. RTRS module consists of client and server modules that are connected via Infiniband network. So it is important for the client to receive the error of the server and handle it smoothly. When debugfs is enabled, RTRS is able to export interfaces to fail RTRS client and server. Following fault injection points are enabled: - fail a request processing on RTRS client side - fail a heart-beat transferation on RTRS server side This patch set is just a starting point. We will enable various faults and test as many error cases as possible. Best regards Gioh Kim (4): RDMA/rtrs: Enable the fault-injection RDMA/rtrs-clt: Inject a fault at request processing RDMA/rtrs-srv: Inject a fault at heart-beat sending docs: fault-injection: Add fault-injection manual of RTRS .../fault-injection/rtrs-fault-injection.rst | 83 +++++++++++++++++++ drivers/infiniband/ulp/rtrs/Makefile | 2 + drivers/infiniband/ulp/rtrs/rtrs-clt-sysfs.c | 44 ++++++++++ drivers/infiniband/ulp/rtrs/rtrs-clt.c | 7 ++ drivers/infiniband/ulp/rtrs/rtrs-clt.h | 13 +++ drivers/infiniband/ulp/rtrs/rtrs-fault.c | 52 ++++++++++++ drivers/infiniband/ulp/rtrs/rtrs-fault.h | 28 +++++++ drivers/infiniband/ulp/rtrs/rtrs-srv-sysfs.c | 44 ++++++++++ drivers/infiniband/ulp/rtrs/rtrs-srv.c | 5 ++ drivers/infiniband/ulp/rtrs/rtrs-srv.h | 13 +++ 10 files changed, 291 insertions(+) create mode 100644 Documentation/fault-injection/rtrs-fault-injection.rst create mode 100644 drivers/infiniband/ulp/rtrs/rtrs-fault.c create mode 100644 drivers/infiniband/ulp/rtrs/rtrs-fault.h -- 2.25.1
