diff options
| author | Vitaly Kuznetsov <vkuznets@redhat.com> | 2017-10-29 12:21:15 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-04 12:04:26 +0100 |
| commit | 98f31a0050ca8ba47b57c6d67599013cdbdd2122 (patch) | |
| tree | e97ce9e3b1bb30e32689cf9b365b6255a4cbe5e3 /drivers/hv | |
| parent | 259cc665e9c08d054549a877c1b53b793de15753 (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/hv')
| -rw-r--r-- | drivers/hv/channel.c | 7 | ||||
| -rw-r--r-- | drivers/hv/hv_trace.h | 20 |
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 |