Commit 034ebf55 authored by Vitaly Kuznetsov's avatar Vitaly Kuznetsov Committed by Greg Kroah-Hartman
Browse files

hyper-v: trace vmbus_negotiate_version() 



Add tracepoint to CHANNELMSG_INITIATE_CONTACT sender.

Signed-off-by: default avatarVitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: default avatarK. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 09cdf8f8

drivers/hv/connection.c

+3 −0
Original line number Diff line number Diff line
@@ -117,6 +117,9 @@ static int vmbus_negotiate_version(struct vmbus_channel_msginfo *msginfo, 
	ret = vmbus_post_msg(msg,

			     sizeof(struct vmbus_channel_initiate_contact),

			     true);



	trace_vmbus_negotiate_version(msg, ret);



	if (ret != 0) {

		spin_lock_irqsave(&vmbus_connection.channelmsg_lock, flags);

		list_del(&msginfo->msglistentry);

drivers/hv/hv_trace.h

+26 −0
Original line number Diff line number Diff line
@@ -232,6 +232,32 @@ TRACE_EVENT(vmbus_teardown_gpadl, 
		    )

	);



TRACE_EVENT(vmbus_negotiate_version,

	    TP_PROTO(const struct vmbus_channel_initiate_contact *msg, int ret),

	    TP_ARGS(msg, ret),

	    TP_STRUCT__entry(

		    __field(u32, ver)

		    __field(u32, target_vcpu)

		    __field(int, ret)

		    __field(u64, int_page)

		    __field(u64, mon_page1)

		    __field(u64, mon_page2)

		    ),

	    TP_fast_assign(

		    __entry->ver = msg->vmbus_version_requested;

		    __entry->target_vcpu = msg->target_vcpu;

		    __entry->int_page = msg->interrupt_page;

		    __entry->mon_page1 = msg->monitor_page1;

		    __entry->mon_page2 = msg->monitor_page2;

		    __entry->ret = ret;

		    ),

	    TP_printk("sending vmbus_version_requested %d, target_vcpu 0x%x, "

		      "pages %llx:%llx:%llx, ret %d",

		      __entry->ver, __entry->target_vcpu, __entry->int_page,

		      __entry->mon_page1, __entry->mon_page2, __entry->ret

		    )

	);



#undef TRACE_INCLUDE_PATH

#define TRACE_INCLUDE_PATH .

#undef TRACE_INCLUDE_FILE