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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>
#define foreach_session_dbg_evt \
_(ENQ, "enqueue") \
_(DEQ, "dequeue") \
_(DEQ_NODE, "dequeue") \
_(POLL_GAP_TRACK, "poll gap track") \
_(POLL_DISPATCH_TIME, "dispatch time")\
_(DISPATCH_END, "dispatch end") \
_(FREE, "session free") \
typedef enum _session_evt_dbg
{
#define _(sym, str) SESSION_EVT_##sym,
foreach_session_dbg_evt
#undef _
} session_evt_dbg_e;
#define SESSION_DEBUG 0 * (TRANSPORT_DEBUG > 0)
#define SESSION_DEQ_NODE_EVTS (0)
#define SESSION_EVT_POLL_DBG (0)
#define SESSION_SM (0)
#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_FREE_HANDLER(_s) \
{ \
ELOG_TYPE_DECLARE (_e) = \
{ \
.format = "free: idx %u", \
.format_args = "i4", \
}; \
DEC_SESSION_ETD(_s, _e, 1); \
ed->data[0] = _s->session_index; \
}
#else
#define SESSION_EVT_FREE_HANDLER(_s)
#endif
#if SESSION_DEQ_NODE_EVTS && SESSION_DEBUG > 1
#define SESSION_EVT_DEQ_HANDLER(_s, _body) \
{ \
ELOG_TYPE_DECLARE (_e) = \
{ \
.format = "deq: id %d len %d rd %d wnd %d", \
.format_args = "i4i4i4i4", \
}; \
DEC_SESSION_ETD(_s, _e, 4); \
do { _body; } while (0); \
}
#define SESSION_EVT_ENQ_HANDLER(_s, _body) \
{ \
ELOG_TYPE_DECLARE (_e) = \
{ \
.format = "enq: id %d length %d", \
.format_args = "i4i4", \
}; \
DEC_SESSION_ETD(_s, _e, 2); \
do { _body; } while (0); \
}
#define SESSION_EVT_DEQ_NODE_HANDLER(_node_evt) \
{ \
ELOG_TYPE_DECLARE (_e) = \
{ \
.format = "deq-node: %s", \
.format_args = "t4", \
.n_enum_strings = 2, \
.enum_strings = { \
"start", \
"end", \
}, \
}; \
DEC_SESSION_ED(_e, 1); \
ed->data[0] = _node_evt; \
}
#else
#define SESSION_EVT_DEQ_HANDLER(_s, _body)
#define SESSION_EVT_ENQ_HANDLER(_s, _body)
#define SESSION_EVT_DEQ_NODE_HANDLER(_node_evt)
#endif /* SESSION_DEQ_NODE_EVTS */
#if SESSION_EVT_POLL_DBG && SESSION_DEBUG > 1
#define SESSION_EVT_POLL_GAP(_smm, _ti) \
{ \
ELOG_TYPE_DECLARE (_e) = \
{ \
.format = "nixon-gap: %d us", \
.format_args = "i4", \
}; \
DEC_SESSION_ED(_e, 1); \
ed->data[0] = (u32) ((now - \
_smm->last_event_poll_by_thread[_ti])*1000000.0); \
}
#define SESSION_EVT_POLL_GAP_TRACK_HANDLER(_smm, _ti) \
{ \
if (PREDICT_TRUE (smm->last_event_poll_by_thread[_ti] != 0.0)) \
if (now > smm->last_event_poll_by_thread[_ti] + 500e-6) \
SESSION_EVT_POLL_GAP(smm, _ti); \
_smm->last_event_poll_by_thread[_ti] = now; \
}
#define SESSION_EVT_POLL_DISPATCH_TIME_HANDLER(_smm, _ti) \
{ \
f64 diff = vlib_time_now (vlib_get_main ()) - \
_smm->last_event_poll_by_thread[_ti]; \
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(_smm, _my_thread_index)
#define SESSION_EVT_POLL_GAP_TRACK_HANDLER(_smm, _my_thread_index)
#define SESSION_EVT_POLL_DISPATCH_TIME_HANDLER(_smm, _ti)
#endif /* SESSION_EVT_POLL_DBG */
#define SESSION_EVT_DISPATCH_END_HANDLER(_smm, _ti) \
{ \
SESSION_EVT_DEQ_NODE_HANDLER(1); \
SESSION_EVT_POLL_DISPATCH_TIME_HANDLER(_smm, _ti); \
}
#define CONCAT_HELPER(_a, _b) _a##_b
#define CC(_a, _b) CONCAT_HELPER(_a, _b)
#define SESSION_EVT_DBG(_evt, _args...) CC(_evt, _HANDLER)(_args)
#else
#define SESSION_EVT_DBG(_evt, _args...)
#define SESSION_DBG(_fmt, _args...)
#endif /* SESSION_DEBUG */
#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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