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/*
* Copyright (c) 2017-2019 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef SRC_VNET_SESSION_SESSION_DEBUG_H_
#define SRC_VNET_SESSION_SESSION_DEBUG_H_
#include <vnet/session/transport.h>
#include <vlib/vlib.h>
#include <vpp/vnet/config.h>
#define foreach_session_dbg_evt \
_ (ENQ, DEQ_EVTS, 1, "enqueue") \
_ (DEQ, DEQ_EVTS, 1, "dequeue") \
_ (DEQ_NODE, DISPATCH_DBG, 1, "dequeue") \
_ (POLL_GAP_TRACK, EVT_POLL_DBG, 1, "poll gap track") \
_ (POLL_DISPATCH_TIME, EVT_POLL_DBG, 1, "dispatch time") \
_ (DISPATCH_START, CLOCKS_EVT_DBG, 1, "dispatch start") \
_ (DISPATCH_END, CLOCKS_EVT_DBG, 1, "dispatch end") \
_ (DSP_CNTRS, CLOCKS_EVT_DBG, 1, "dispatch counters") \
_ (STATE_CHANGE, SM, 1, "session state change") \
_ (FREE, SM, 1, "session free") \
_ (IO_EVT_COUNTS, COUNTS_EVT_DBG, 1, "io evt counts") \
_ (COUNTS, COUNTS_EVT_DBG, 1, "ctrl evt counts")
typedef enum _session_evt_dbg
{
#define _(sym, grp, lvl, str) SESSION_EVT_##sym,
foreach_session_dbg_evt
#undef _
} session_evt_dbg_e;
typedef enum session_evt_lvl_
{
#define _(sym, grp, lvl, str) SESSION_EVT_##sym##_LVL = lvl,
foreach_session_dbg_evt
#undef _
} session_evt_lvl_e;
#define foreach_session_evt_grp \
_ (DEQ_EVTS, "dequeue/enqueue events") \
_ (DISPATCH_DBG, "dispatch") \
_ (EVT_POLL_DBG, "event poll") \
_ (SM, "state machine") \
_ (CLOCKS_EVT_DBG, "clocks events") \
_ (COUNTS_EVT_DBG, "counts events")
typedef enum session_evt_grp_
{
#define _(sym, str) SESSION_EVT_GRP_##sym,
foreach_session_evt_grp
#undef _
SESSION_EVT_N_GRP
} session_evt_grp_e;
typedef enum session_evt_to_grp_
{
#define _(sym, grp, lvl, str) SESSION_EVT_##sym##_GRP = SESSION_EVT_GRP_##grp,
foreach_session_dbg_evt
#undef _
} session_evt_to_grp_e;
#define foreach_session_events \
_ (CLK_UPDATE_TIME, 1, 1, "Time Update Time") \
_ (CLK_MQ_DEQ, 1, 1, "Time MQ Dequeue") \
_ (CLK_CTRL_EVTS, 1, 1, "Time Ctrl Events") \
_ (CLK_NEW_IO_EVTS, 1, 1, "Time New IO Events") \
_ (CLK_OLD_IO_EVTS, 1, 1, "Time Old IO Events") \
_ (CLK_TOTAL, 1, 1, "Time Total in Node") \
_ (CLK_START, 1, 1, "Time Since Last Reset") \
\
_ (CNT_MQ_EVTS, 1, 0, "# of MQ Events Processed") \
_ (CNT_CTRL_EVTS, 1, 0, "# of Ctrl Events Processed") \
_ (CNT_NEW_EVTS, 1, 0, "# of New Events Processed") \
_ (CNT_OLD_EVTS, 1, 0, "# of Old Events Processed") \
_ (CNT_IO_EVTS, 1, 0, "# of Events Processed") \
_ (CNT_NODE_CALL, 1, 0, "# of Node Calls") \
\
_ (BASE_OFFSET_IO_EVTS, 0, 0, "NULL") \
_ (SESSION_IO_EVT_RX, 1, 0, "# of IO Event RX") \
_ (SESSION_IO_EVT_TX, 1, 0, "# of IO Event TX") \
_ (SESSION_IO_EVT_TX_FLUSH, 1, 0, "# of IO Event TX Flush") \
_ (SESSION_IO_EVT_BUILTIN_RX, 1, 0, "# of IO Event BuiltIn RX") \
_ (SESSION_IO_EVT_TX_MAIN, 1, 0, "# of IO Event TX Main")
typedef enum
{
#define _(sym, disp, type, str) SESS_Q_##sym,
foreach_session_events
#undef _
SESS_Q_MAX_EVT_TYPES
} sess_q_node_events_types_t;
typedef struct session_dbg_counter_
{
union
{
f64 f64;
u64 u64;
};
} session_dbg_counter_t;
typedef struct session_dbg_evts_t
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
f64 last_time;
f64 start_time;
u64 prev_io;
session_dbg_counter_t counters[SESS_Q_MAX_EVT_TYPES];
} session_dbg_evts_t;
typedef struct session_dbg_main_
{
session_dbg_evts_t *wrk;
u8 grp_dbg_lvl[SESSION_EVT_N_GRP];
} session_dbg_main_t;
extern session_dbg_main_t session_dbg_main;
#if defined VPP_SESSION_DEBUG && (TRANSPORT_DEBUG > 0)
#define SESSION_DEBUG (1)
#define SESSION_DEQ_EVTS (1)
#define SESSION_DISPATCH_DBG (1)
#define SESSION_EVT_POLL_DBG (1)
#define SESSION_SM (1)
#define SESSION_CLOCKS_EVT_DBG (1)
#define SESSION_COUNTS_EVT_DBG (1)
#else
#define SESSION_DEBUG (0)
#define SESSION_DEQ_EVTS (0)
#define SESSION_DISPATCH_DBG (0)
#define SESSION_EVT_POLL_DBG (0)
#define SESSION_SM (0)
#define SESSION_CLOCKS_EVT_DBG (0)
#define SESSION_COUNTS_EVT_DBG (0)
#endif
#if SESSION_DEBUG
#define SESSION_DBG(_fmt, _args...) clib_warning (_fmt, ##_args)
#define DEC_SESSION_ETD(_s, _e, _size) \
struct \
{ \
u32 data[_size]; \
} * ed; \
transport_connection_t *_tc = session_get_transport (_s); \
ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main, \
_e, _tc->elog_track)
#define DEC_SESSION_ED(_e, _size) \
struct \
{ \
u32 data[_size]; \
} * ed; \
ed = ELOG_DATA (&vlib_global_main.elog_main, _e)
#if SESSION_SM
#define SESSION_EVT_STATE_CHANGE_HANDLER(_s) \
{ \
ELOG_TYPE_DECLARE (_e) = { \
.format = "%s: idx %u", \
.format_args = "t4i4", \
.n_enum_strings = 12, \
.enum_strings = { \
"created", \
"listening", \
"connecting", \
"accepting", \
"ready", \
"opened", \
"transport closing", \
"closing", \
"app closed", \
"transport closed", \
"closed", \
"transport deleted", \
}, \
}; \
DEC_SESSION_ETD (_s, _e, 2); \
ed->data[0] = _s->session_state; \
ed->data[1] = _s->session_index; \
}
#define SESSION_EVT_FREE_HANDLER(_s) \
{ \
ELOG_TYPE_DECLARE (_e) = { \
.format = "free: idx %u", \
.format_args = "i4", \
}; \
DEC_SESSION_ED (_e, 1); \
ed->data[0] = _s->session_index; \
}
#else
#define SESSION_EVT_STATE_CHANGE_HANDLER(_s)
#define SESSION_EVT_FREE_HANDLER(_s)
#endif
#if SESSION_DEQ_EVTS
#define SESSION_EVT_DEQ_HANDLER(_s, _now, _max, _has_evt, _ts) \
{ \
ELOG_TYPE_DECLARE (_e) = \
{ \
.format = "deq: now %u max %d evt %u ts %d", \
.format_args = "i4i4i4i4", \
}; \
DEC_SESSION_ETD(_s, _e, 4); \
ed->data[0] = _now; \
ed->data[1] = _max; \
ed->data[2] = _has_evt; \
ed->data[3] = _ts * 1000000.0; \
}
#define SESSION_EVT_ENQ_HANDLER(_s, _len) \
{ \
ELOG_TYPE_DECLARE (_e) = \
{ \
.format = "enq: length %d", \
.format_args = "i4", \
}; \
DEC_SESSION_ETD(_s, _e, 1); \
ed->data[0] = _len; \
}
#else
#define SESSION_EVT_DEQ_HANDLER(_s, _now, _max, _has_evt, _ts)
#define SESSION_EVT_ENQ_HANDLER(_s, _body)
#endif /* SESSION_DEQ_NODE_EVTS */
#if SESSION_DISPATCH_DBG
#define SESSION_EVT_DEQ_NODE_HANDLER(_wrk, _node_evt, _ntx) \
{ \
ELOG_TYPE_DECLARE (_e) = \
{ \
.format = "dispatch: %s pkts %u re-entry: %u dispatch %u", \
.format_args = "t4i4i4i4", \
.n_enum_strings = 2, \
.enum_strings = { \
"start", \
"end", \
}, \
}; \
DEC_SESSION_ED(_e, 4); \
ed->data[0] = _node_evt; \
ed->data[1] = _ntx; \
ed->data[2] = (_wrk->last_vlib_time - _wrk->last_event_poll) \
* 1000000.0; \
ed->data[3] = (vlib_time_now (_wrk->vm) - _wrk->last_vlib_time) \
* 1000000.0; \
}
#else
#define SESSION_EVT_DEQ_NODE_HANDLER(_wrk, _node_evt, _ntx)
#endif /* SESSION_DISPATCH_DBG */
#if SESSION_EVT_POLL_DBG && SESSION_DEBUG > 1
#define SESSION_EVT_POLL_GAP(_wrk) \
{ \
ELOG_TYPE_DECLARE (_e) = \
{ \
.format = "nixon-gap: %d us", \
.format_args = "i4", \
}; \
DEC_SESSION_ED(_e, 1); \
ed->data[0] = (u32) ((_wrk->last_vlib_time - _wrk->last_event_poll) \
*1000000.0); \
}
#define SESSION_EVT_POLL_GAP_TRACK_HANDLER(_wrk) \
{ \
if (PREDICT_TRUE (_wrk->last_event_poll != 0.0)) \
if (_wrk->last_vlib_time > _wrk->last_event_poll + 500e-6) \
SESSION_EVT_POLL_GAP(_wrk); \
_wrk->last_event_poll = _wrk->last_vlib_time; \
}
#define SESSION_EVT_POLL_DISPATCH_TIME_HANDLER(_wrk) \
{ \
f64 diff = vlib_time_now (vlib_get_main ()) - _wrk->last_event_poll; \
if (diff > 5e-2) \
{ \
ELOG_TYPE_DECLARE (_e) = \
{ \
.format = "dispatch time: %d us", \
.format_args = "i4", \
}; \
DEC_SESSION_ED(_e, 1); \
ed->data[0] = diff *1000000.0; \
} \
}
#else
#define SESSION_EVT_POLL_GAP(_wrk)
#define SESSION_EVT_POLL_GAP_TRACK_HANDLER(_wrk)
#define SESSION_EVT_POLL_DISPATCH_TIME_HANDLER(_wrk)
#define SESSION_EVT_POLL_CLOCKS_TIME_HANDLER(_wrk)
#endif /* SESSION_EVT_POLL_DBG */
#if SESSION_CLOCKS_EVT_DBG
#define SESSION_EVT_DSP_CNTRS_UPDATE_TIME_HANDLER(_wrk, _diff, _args...) \
session_dbg_evts_t *sde = &session_dbg_main.wrk[_wrk->vm->thread_index]; \
sde->counters[SESS_Q_CLK_UPDATE_TIME].f64 += _diff;
#define SESSION_EVT_DSP_CNTRS_MQ_DEQ_HANDLER(_wrk, _diff, _cnt, _args...) \
session_dbg_evts_t *sde = &session_dbg_main.wrk[_wrk->vm->thread_index]; \
sde->counters[SESS_Q_CNT_MQ_EVTS].u64 += _cnt; \
sde->counters[SESS_Q_CLK_MQ_DEQ].f64 += _diff;
#define SESSION_EVT_DSP_CNTRS_CTRL_EVTS_HANDLER(_wrk, _diff, _args...) \
session_dbg_evts_t *sde = &session_dbg_main.wrk[_wrk->vm->thread_index]; \
sde->counters[SESS_Q_CLK_CTRL_EVTS].f64 += _diff; \
sde->prev_io = sde->counters[SESS_Q_CNT_IO_EVTS].u64; \
#define SESSION_EVT_DSP_CNTRS_NEW_IO_EVTS_HANDLER(_wrk, _diff, _args...) \
session_dbg_evts_t *sde = &session_dbg_main.wrk[_wrk->vm->thread_index]; \
sde->counters[SESS_Q_CLK_NEW_IO_EVTS].f64 += _diff; \
sde->counters[SESS_Q_CNT_NEW_EVTS].u64 += \
sde->counters[SESS_Q_CNT_IO_EVTS].u64 - sde->prev_io; \
sde->prev_io = sde->counters[SESS_Q_CNT_IO_EVTS].u64; \
#define SESSION_EVT_DSP_CNTRS_OLD_IO_EVTS_HANDLER(_wrk, _diff, _args...) \
session_dbg_evts_t *sde = &session_dbg_main.wrk[_wrk->vm->thread_index]; \
sde->counters[SESS_Q_CLK_OLD_IO_EVTS].f64 += _diff; \
sde->counters[SESS_Q_CNT_OLD_EVTS].u64 += \
sde->counters[SESS_Q_CNT_IO_EVTS].u64 - sde->prev_io; \
#define SESSION_EVT_DSP_CNTRS_HANDLER(_disp_evt, _wrk, _args...) \
{ \
f64 time_now = vlib_time_now (_wrk->vm), diff; \
diff = time_now - session_dbg_main.wrk[_wrk->vm->thread_index].last_time; \
session_dbg_main.wrk[_wrk->vm->thread_index].last_time = time_now; \
CC(CC(SESSION_EVT_DSP_CNTRS_,_disp_evt),_HANDLER)(wrk, diff, _args); \
}
#else
#define SESSION_EVT_DSP_CNTRS_HANDLER(_disp_evt, _wrk, _args...)
#endif /*SESSION_CLOCKS_EVT_DBG */
#if SESSION_COUNTS_EVT_DBG
#define SESSION_EVT_COUNTS_HANDLER(_node_evt, _cnt, _wrk) \
{ \
session_dbg_main.wrk[_wrk->vm->thread_index]. \
counters[SESS_Q_##_node_evt].u64 += _cnt; \
}
#define SESSION_EVT_IO_EVT_COUNTS_HANDLER(_node_evt, _cnt, _wrk) \
{ \
u8 type = SESS_Q_BASE_OFFSET_IO_EVTS + _node_evt + 1; \
session_dbg_evts_t *sde; \
sde = &session_dbg_main.wrk[_wrk->vm->thread_index]; \
sde->counters[type].u64 += _cnt; \
sde->counters[SESS_Q_CNT_IO_EVTS].u64 += _cnt; \
}
#else
#define SESSION_EVT_COUNTS_HANDLER(_node_evt, _cnt, _wrk)
#define SESSION_EVT_IO_EVT_COUNTS_HANDLER(_node_evt, _cnt, _wrk)
#endif /*SESSION_COUNTS_EVT_DBG */
#define SESSION_EVT_DISPATCH_START_HANDLER(_wrk) \
{ \
session_dbg_evts_t *sde; \
sde = &session_dbg_main.wrk[_wrk->vm->thread_index]; \
if (SESSION_DEQ_EVTS > 1) \
SESSION_EVT_DEQ_NODE_HANDLER (_wrk, 0, 0); \
SESSION_EVT_POLL_GAP_TRACK_HANDLER (wrk); \
sde->counters[SESS_Q_##CNT_NODE_CALL].u64 +=1; \
sde->last_time = vlib_time_now (_wrk->vm); \
}
#define SESSION_EVT_DISPATCH_END_HANDLER(_wrk, _ntx) \
{ \
f64 now = vlib_time_now (_wrk->vm); \
session_dbg_evts_t *sde; \
sde = &session_dbg_main.wrk[_wrk->vm->thread_index]; \
if (_ntx) \
SESSION_EVT_DEQ_NODE_HANDLER (_wrk, 1, _ntx); \
SESSION_EVT_POLL_DISPATCH_TIME_HANDLER(_wrk); \
_wrk->last_event_poll = now; \
sde->counters[SESS_Q_CLK_TOTAL].f64 += now - _wrk->last_vlib_time; \
sde->counters[SESS_Q_CLK_START].f64 = now - sde->start_time; \
}
#define CONCAT_HELPER(_a, _b) _a##_b
#define CC(_a, _b) CONCAT_HELPER(_a, _b)
#define session_evt_lvl(_evt) CC (_evt, _LVL)
#define session_evt_grp(_evt) CC (_evt, _GRP)
#define session_evt_grp_dbg_lvl(_evt) \
session_dbg_main.grp_dbg_lvl[session_evt_grp (_evt)]
#define SESSION_EVT(_evt, _args...) \
if (PREDICT_FALSE (session_evt_grp_dbg_lvl (_evt) >= \
session_evt_lvl (_evt))) \
CC (_evt, _HANDLER) (_args)
#else
#define SESSION_EVT(_evt, _args...)
#define SESSION_DBG(_fmt, _args...)
#endif /* SESSION_DEBUG */
void session_debug_init (void);
#endif /* SRC_VNET_SESSION_SESSION_DEBUG_H_ */
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "gnu")
* End:
*/
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