Commit 03b81e66 authored by Vitaly Kuznetsov's avatar Vitaly Kuznetsov Committed by Greg Kroah-Hartman
Browse files

hyper-v: trace vmbus_onoffer() 



Add tracepoint to CHANNELMSG_OFFERCHANNEL handler.

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 716fa52f

drivers/hv/channel_mgmt.c

+2 −0
Original line number Diff line number Diff line
@@ -813,6 +813,8 @@ static void vmbus_onoffer(struct vmbus_channel_message_header *hdr) 


	offer = (struct vmbus_channel_offer_channel *)hdr;



	trace_vmbus_onoffer(offer);



	/* Allocate the channel object and save this offer. */

	newchannel = alloc_channel();

	if (!newchannel) {

drivers/hv/hv_trace.h

+37 −0
Original line number Diff line number Diff line
@@ -24,6 +24,43 @@ DEFINE_EVENT(vmbus_hdr_msg, vmbus_on_message, 
	TP_ARGS(hdr)

);



TRACE_EVENT(vmbus_onoffer,

	    TP_PROTO(const struct vmbus_channel_offer_channel *offer),

	    TP_ARGS(offer),

	    TP_STRUCT__entry(

		    __field(u32, child_relid)

		    __field(u8, monitorid)

		    __field(u16, is_ddc_int)

		    __field(u32, connection_id)

		    __array(char, if_type, 16)

		    __array(char, if_instance, 16)

		    __field(u16, chn_flags)

		    __field(u16, mmio_mb)

		    __field(u16, sub_idx)

		    ),

	    TP_fast_assign(__entry->child_relid = offer->child_relid;

			   __entry->monitorid = offer->monitorid;

			   __entry->is_ddc_int = offer->is_dedicated_interrupt;

			   __entry->connection_id = offer->connection_id;

			   memcpy(__entry->if_type,

				  &offer->offer.if_type.b, 16);

			   memcpy(__entry->if_instance,

				  &offer->offer.if_instance.b, 16);

			   __entry->chn_flags = offer->offer.chn_flags;

			   __entry->mmio_mb = offer->offer.mmio_megabytes;

			   __entry->sub_idx = offer->offer.sub_channel_index;

		    ),

	    TP_printk("child_relid 0x%x, monitorid 0x%x, is_dedicated %d, "

		      "connection_id 0x%x, if_type %pUl, if_instance %pUl, "

		      "chn_flags 0x%x, mmio_megabytes %d, sub_channel_index %d",

		      __entry->child_relid, __entry->monitorid,

		      __entry->is_ddc_int, __entry->connection_id,

		      __entry->if_type, __entry->if_instance,

		      __entry->chn_flags, __entry->mmio_mb,

		      __entry->sub_idx

		    )

	);



#undef TRACE_INCLUDE_PATH

#define TRACE_INCLUDE_PATH .

#undef TRACE_INCLUDE_FILE