This patchset introduces a testing framework for Hyper-V drivers. This framework allows us to introduce delays in the packet receive path on a per-device basis. While the current code only supports introducing arbitrary delays in the host/guest communication path, we intend to expand this to support error injection in the future. Branden Bonaby (3): drivers: hv: vmbus: Introduce latency testing drivers: hv: vmbus: add fuzz test attributes to sysfs tools: hv: add vmbus testing tool Documentation/ABI/stable/sysfs-bus-vmbus | 22 ++ drivers/hv/connection.c | 5 + drivers/hv/ring_buffer.c | 10 + drivers/hv/vmbus_drv.c | 97 ++++++- include/linux/hyperv.h | 14 + tools/hv/vmbus_testing | 326 +++++++++++++++++++++++ 6 files changed, 473 insertions(+), 1 deletion(-) create mode 100644 tools/hv/vmbus_testing -- 2.17.1
