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authorVitaly Kuznetsov <vkuznets@redhat.com>2017-10-29 12:21:02 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-11-04 12:04:24 +0100
commit03b81e66c78b076bfc127714ce6fd25655784600 (patch)
treeccdf44cb823a28a6d68290f3b898ae023c22c574
parent716fa52fb474a36ddd3cbc981108f93610c973ef (diff)
hyper-v: trace vmbus_onoffer()
Add tracepoint to CHANNELMSG_OFFERCHANNEL handler. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: K. Y. Srinivasan <kys@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/hv/channel_mgmt.c2
-rw-r--r--drivers/hv/hv_trace.h37
2 files changed, 39 insertions, 0 deletions
diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
index 71d4d68488d4..7c11e17ad295 100644
--- a/drivers/hv/channel_mgmt.c
+++ b/drivers/hv/channel_mgmt.c
@@ -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) {
diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h
index d432aba5df8a..488b873b563e 100644
--- a/drivers/hv/hv_trace.h
+++ b/drivers/hv/hv_trace.h
@@ -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

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