2 * Copyright (c) 2017 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
15 #ifndef SRC_VNET_SESSION_SESSION_DEBUG_H_
16 #define SRC_VNET_SESSION_SESSION_DEBUG_H_
18 #include <vnet/session/transport.h>
19 #include <vlib/vlib.h>
21 #define foreach_session_dbg_evt \
24 _(DEQ_NODE, "dequeue") \
25 _(POLL_GAP_TRACK, "poll gap track") \
26 _(POLL_DISPATCH_TIME, "dispatch time")\
27 _(DISPATCH_END, "dispatch end") \
29 typedef enum _session_evt_dbg
31 #define _(sym, str) SESSION_EVT_##sym,
32 foreach_session_dbg_evt
36 #define SESSION_DEBUG 0 * (TRANSPORT_DEBUG > 0)
37 #define SESSION_DEQ_NODE_EVTS (0)
38 #define SESSION_EVT_POLL_DBG (0)
42 #define SESSION_DBG(_fmt, _args...) clib_warning (_fmt, ##_args)
44 #define DEC_SESSION_ETD(_s, _e, _size) \
49 transport_connection_t *_tc = session_get_transport (_s); \
50 ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main, \
53 #define DEC_SESSION_ED(_e, _size) \
58 ed = ELOG_DATA (&vlib_global_main.elog_main, _e)
60 #if SESSION_DEQ_NODE_EVTS && SESSION_DEBUG > 1
61 #define SESSION_EVT_DEQ_HANDLER(_s, _body) \
63 ELOG_TYPE_DECLARE (_e) = \
65 .format = "deq: id %d len %d rd %d wnd %d", \
66 .format_args = "i4i4i4i4", \
68 DEC_SESSION_ETD(_s, _e, 4); \
69 do { _body; } while (0); \
72 #define SESSION_EVT_ENQ_HANDLER(_s, _body) \
74 ELOG_TYPE_DECLARE (_e) = \
76 .format = "enq: id %d length %d", \
77 .format_args = "i4i4", \
79 DEC_SESSION_ETD(_s, _e, 2); \
80 do { _body; } while (0); \
83 #define SESSION_EVT_DEQ_NODE_HANDLER(_node_evt) \
85 ELOG_TYPE_DECLARE (_e) = \
87 .format = "deq-node: %s", \
88 .format_args = "t4", \
89 .n_enum_strings = 2, \
95 DEC_SESSION_ED(_e, 1); \
96 ed->data[0] = _node_evt; \
99 #define SESSION_EVT_DEQ_HANDLER(_s, _body)
100 #define SESSION_EVT_ENQ_HANDLER(_s, _body)
101 #define SESSION_EVT_DEQ_NODE_HANDLER(_node_evt)
102 #endif /* SESSION_DEQ_NODE_EVTS */
104 #if SESSION_EVT_POLL_DBG && SESSION_DEBUG > 1
105 #define SESSION_EVT_POLL_GAP(_smm, _ti) \
107 ELOG_TYPE_DECLARE (_e) = \
109 .format = "nixon-gap: %d us", \
110 .format_args = "i4", \
112 DEC_SESSION_ED(_e, 1); \
113 ed->data[0] = (u32) ((now - \
114 _smm->last_event_poll_by_thread[_ti])*1000000.0); \
116 #define SESSION_EVT_POLL_GAP_TRACK_HANDLER(_smm, _ti) \
118 if (PREDICT_TRUE (smm->last_event_poll_by_thread[_ti] != 0.0)) \
119 if (now > smm->last_event_poll_by_thread[_ti] + 500e-6) \
120 SESSION_EVT_POLL_GAP(smm, _ti); \
121 _smm->last_event_poll_by_thread[_ti] = now; \
124 #define SESSION_EVT_POLL_DISPATCH_TIME_HANDLER(_smm, _ti) \
126 f64 diff = vlib_time_now (vlib_get_main ()) - \
127 _smm->last_event_poll_by_thread[_ti]; \
130 ELOG_TYPE_DECLARE (_e) = \
132 .format = "dispatch time: %d us", \
133 .format_args = "i4", \
135 DEC_SESSION_ED(_e, 1); \
136 ed->data[0] = diff *1000000.0; \
141 #define SESSION_EVT_POLL_GAP(_smm, _my_thread_index)
142 #define SESSION_EVT_POLL_GAP_TRACK_HANDLER(_smm, _my_thread_index)
143 #define SESSION_EVT_POLL_DISPATCH_TIME_HANDLER(_smm, _ti)
144 #endif /* SESSION_EVT_POLL_DBG */
146 #define SESSION_EVT_DISPATCH_END_HANDLER(_smm, _ti) \
148 SESSION_EVT_DEQ_NODE_HANDLER(1); \
149 SESSION_EVT_POLL_DISPATCH_TIME_HANDLER(_smm, _ti); \
152 #define CONCAT_HELPER(_a, _b) _a##_b
153 #define CC(_a, _b) CONCAT_HELPER(_a, _b)
154 #define SESSION_EVT_DBG(_evt, _args...) CC(_evt, _HANDLER)(_args)
157 #define SESSION_EVT_DBG(_evt, _args...)
158 #define SESSION_DBG(_fmt, _args...)
159 #endif /* SESSION_DEBUG */
161 #endif /* SRC_VNET_SESSION_SESSION_DEBUG_H_ */
163 * fd.io coding-style-patch-verification: ON
166 * eval: (c-set-style "gnu")