From c9fe0f8fa4136c2451dcc012e48fbf4470d6b592 Mon Sep 17 00:00:00 2001 From: Vitaly Kuznetsov Date: Sun, 29 Oct 2017 12:21:00 -0700 Subject: hyper-v: trace vmbus_on_msg_dpc() Add tracing subsystem to Hyper-V VMBus module and add tracepoint to vmbus_on_msg_dpc() which is called when we receive a message from host. Signed-off-by: Vitaly Kuznetsov Signed-off-by: K. Y. Srinivasan Signed-off-by: Greg Kroah-Hartman --- drivers/hv/hv_trace.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 drivers/hv/hv_trace.h (limited to 'drivers/hv/hv_trace.h') diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h new file mode 100644 index 000000000000..9c2772922c76 --- /dev/null +++ b/drivers/hv/hv_trace.h @@ -0,0 +1,29 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM hyperv + +#if !defined(_HV_TRACE_H) || defined(TRACE_HEADER_MULTI_READ) +#define _HV_TRACE_H + +#include + +DECLARE_EVENT_CLASS(vmbus_hdr_msg, + TP_PROTO(const struct vmbus_channel_message_header *hdr), + TP_ARGS(hdr), + TP_STRUCT__entry(__field(unsigned int, msgtype)), + TP_fast_assign(__entry->msgtype = hdr->msgtype;), + TP_printk("msgtype=%u", __entry->msgtype) +); + +DEFINE_EVENT(vmbus_hdr_msg, vmbus_on_msg_dpc, + TP_PROTO(const struct vmbus_channel_message_header *hdr), + TP_ARGS(hdr) +); + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE hv_trace +#endif /* _HV_TRACE_H */ + +/* This part must be outside protection */ +#include -- cgit v1.2.3