/* * Copyright (c) 2017 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") \ 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) #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_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: */