aboutsummaryrefslogtreecommitdiffstats
path: root/drivers
diff options
context:
space:
mode:
authorVitaly Kuznetsov <vkuznets@redhat.com>2017-10-29 12:21:15 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-11-04 12:04:26 +0100
commit98f31a0050ca8ba47b57c6d67599013cdbdd2122 (patch)
treee97ce9e3b1bb30e32689cf9b365b6255a4cbe5e3 /drivers
parent259cc665e9c08d054549a877c1b53b793de15753 (diff)
hyper-v: trace vmbus_send_tl_connect_request()
Add tracepoint to CHANNELMSG_TL_CONNECT_REQUEST sender. 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>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/hv/channel.c7
-rw-r--r--drivers/hv/hv_trace.h20
2 files changed, 26 insertions, 1 deletions
diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
index 0382d7b600a1..ed3634e53e15 100644
--- a/drivers/hv/channel.c
+++ b/drivers/hv/channel.c
@@ -236,13 +236,18 @@ int vmbus_send_tl_connect_request(const uuid_le *shv_guest_servie_id,
const uuid_le *shv_host_servie_id)
{
struct vmbus_channel_tl_connect_request conn_msg;
+ int ret;
memset(&conn_msg, 0, sizeof(conn_msg));
conn_msg.header.msgtype = CHANNELMSG_TL_CONNECT_REQUEST;
conn_msg.guest_endpoint_id = *shv_guest_servie_id;
conn_msg.host_service_id = *shv_host_servie_id;
- return vmbus_post_msg(&conn_msg, sizeof(conn_msg), true);
+ ret = vmbus_post_msg(&conn_msg, sizeof(conn_msg), true);
+
+ trace_vmbus_send_tl_connect_request(&conn_msg, ret);
+
+ return ret;
}
EXPORT_SYMBOL_GPL(vmbus_send_tl_connect_request);
diff --git a/drivers/hv/hv_trace.h b/drivers/hv/hv_trace.h
index f0e437c3522f..5382d9630306 100644
--- a/drivers/hv/hv_trace.h
+++ b/drivers/hv/hv_trace.h
@@ -274,6 +274,26 @@ TRACE_EVENT(vmbus_release_relid,
)
);
+TRACE_EVENT(vmbus_send_tl_connect_request,
+ TP_PROTO(const struct vmbus_channel_tl_connect_request *msg,
+ int ret),
+ TP_ARGS(msg, ret),
+ TP_STRUCT__entry(
+ __array(char, guest_id, 16)
+ __array(char, host_id, 16)
+ __field(int, ret)
+ ),
+ TP_fast_assign(
+ memcpy(__entry->guest_id, &msg->guest_endpoint_id.b, 16);
+ memcpy(__entry->host_id, &msg->host_service_id.b, 16);
+ __entry->ret = ret;
+ ),
+ TP_printk("sending guest_endpoint_id %pUl, host_service_id %pUl, "
+ "ret %d",
+ __entry->guest_id, __entry->host_id, __entry->ret
+ )
+ );
+
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE

Privacy Policy