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Diffstat (limited to 'src/vnet/tcp/tcp_debug.h')
| -rwxr-xr-x | src/vnet/tcp/tcp_debug.h | 761 |
1 files changed, 761 insertions, 0 deletions
diff --git a/src/vnet/tcp/tcp_debug.h b/src/vnet/tcp/tcp_debug.h new file mode 100755 index 00000000..eb318cde --- /dev/null +++ b/src/vnet/tcp/tcp_debug.h @@ -0,0 +1,761 @@ +/* + * 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_TCP_TCP_DEBUG_H_ +#define SRC_VNET_TCP_TCP_DEBUG_H_ + +#include <vlib/vlib.h> + +#define TCP_DEBUG (1) +#define TCP_DEBUG_SM (0) +#define TCP_DEBUG_CC (0) +#define TCP_DEBUG_CC_STAT (1) + +#define foreach_tcp_dbg_evt \ + _(INIT, "") \ + _(DEALLOC, "") \ + _(OPEN, "open") \ + _(CLOSE, "close") \ + _(BIND, "bind") \ + _(UNBIND, "unbind") \ + _(DELETE, "delete") \ + _(SYN_SENT, "SYN sent") \ + _(SYNACK_SENT, "SYNACK sent") \ + _(SYNACK_RCVD, "SYNACK rcvd") \ + _(SYN_RXT, "SYN retransmit") \ + _(FIN_SENT, "FIN sent") \ + _(ACK_SENT, "ACK sent") \ + _(DUPACK_SENT, "DUPACK sent") \ + _(RST_SENT, "RST sent") \ + _(SYN_RCVD, "SYN rcvd") \ + _(ACK_RCVD, "ACK rcvd") \ + _(DUPACK_RCVD, "DUPACK rcvd") \ + _(FIN_RCVD, "FIN rcvd") \ + _(RST_RCVD, "RST rcvd") \ + _(STATE_CHANGE, "state change") \ + _(PKTIZE, "packetize") \ + _(INPUT, "in") \ + _(SND_WND, "snd_wnd update") \ + _(OUTPUT, "output") \ + _(TIMER_POP, "timer pop") \ + _(CC_RTX, "retransmit") \ + _(CC_EVT, "cc event") \ + _(CC_PACK, "cc partial ack") \ + _(CC_STAT, "cc stats") \ + _(CC_RTO_STAT, "cc rto stats") \ + _(SEG_INVALID, "invalid segment") \ + _(PAWS_FAIL, "failed paws check") \ + _(ACK_RCV_ERR, "invalid ack") \ + _(RCV_WND_SHRUNK, "shrunk rcv_wnd") \ + +typedef enum _tcp_dbg +{ +#define _(sym, str) TCP_DBG_##sym, + foreach_tcp_dbg_evt +#undef _ +} tcp_dbg_e; + +typedef enum _tcp_dbg_evt +{ +#define _(sym, str) TCP_EVT_##sym, + foreach_tcp_dbg_evt +#undef _ +} tcp_dbg_evt_e; + +#if TCP_DEBUG + +#define TRANSPORT_DEBUG (1) + +/* + * Infra and evt track setup + */ + +#define TCP_DBG(_fmt, _args...) clib_warning (_fmt, ##_args) + +#define DECLARE_ETD(_tc, _e, _size) \ + struct \ + { \ + u32 data[_size]; \ + } * ed; \ + ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main, \ + _e, _tc->c_elog_track) + +#define TCP_DBG_IP_TAG_LCL(_tc) \ +{ \ + if (_tc->c_is_ip4) \ + { \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "lcl: %d.%d.%d.%d:%d", \ + .format_args = "i4i4i4i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 5); \ + ed->data[0] = _tc->c_lcl_ip.ip4.as_u8[0]; \ + ed->data[1] = _tc->c_lcl_ip.ip4.as_u8[1]; \ + ed->data[2] = _tc->c_lcl_ip.ip4.as_u8[2]; \ + ed->data[3] = _tc->c_lcl_ip.ip4.as_u8[3]; \ + ed->data[4] = clib_net_to_host_u16(_tc->c_lcl_port); \ + } \ +} + +#define TCP_DBG_IP_TAG_RMT(_tc) \ +{ \ + if (_tc->c_is_ip4) \ + { \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "rmt: %d.%d.%d.%d:%d", \ + .format_args = "i4i4i4i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 5); \ + ed->data[0] = _tc->c_rmt_ip.ip4.as_u8[0]; \ + ed->data[1] = _tc->c_rmt_ip.ip4.as_u8[1]; \ + ed->data[2] = _tc->c_rmt_ip.ip4.as_u8[2]; \ + ed->data[3] = _tc->c_rmt_ip.ip4.as_u8[3]; \ + ed->data[4] = clib_net_to_host_u16(_tc->c_rmt_port); \ + } \ +} + +#define TCP_EVT_INIT_HANDLER(_tc, _is_l, ...) \ +{ \ + char *_fmt = _is_l ? "l[%d].%d:%d%c" : "[%d].%d:%d->.%d:%d%c"; \ + if (_tc->c_is_ip4) \ + { \ + _tc->c_elog_track.name = \ + (char *) format (0, _fmt, _tc->c_thread_index, \ + _tc->c_lcl_ip.ip4.as_u8[3], \ + clib_net_to_host_u16(_tc->c_lcl_port), \ + _tc->c_rmt_ip.ip4.as_u8[3], \ + clib_net_to_host_u16(_tc->c_rmt_port), 0); \ + } \ + else \ + _tc->c_elog_track.name = \ + (char *) format (0, _fmt, _tc->c_thread_index, \ + _tc->c_lcl_ip.ip6.as_u8[15], \ + clib_net_to_host_u16(_tc->c_lcl_port), \ + _tc->c_rmt_ip.ip6.as_u8[15], \ + clib_net_to_host_u16(_tc->c_rmt_port), 0); \ + elog_track_register (&vlib_global_main.elog_main, &_tc->c_elog_track);\ + TCP_DBG_IP_TAG_LCL(_tc); \ + TCP_DBG_IP_TAG_RMT(_tc); \ +} + +#define TCP_EVT_DEALLOC_HANDLER(_tc, ...) \ +{ \ + vec_free (_tc->c_elog_track.name); \ +} + +#define TCP_EVT_OPEN_HANDLER(_tc, ...) \ +{ \ + TCP_EVT_INIT_HANDLER(_tc, 0); \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "open: index %d", \ + .format_args = "i4", \ + }; \ + DECLARE_ETD(_tc, _e, 1); \ + ed->data[0] = _tc->c_c_index; \ +} + +#define TCP_EVT_CLOSE_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "close: %d", \ + .format_args = "i4", \ + }; \ + DECLARE_ETD(_tc, _e, 1); \ + ed->data[0] = _tc->c_c_index; \ +} + +#define TCP_EVT_BIND_HANDLER(_tc, ...) \ +{ \ + TCP_EVT_INIT_HANDLER(_tc, 1); \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "bind: listener %d", \ + }; \ + DECLARE_ETD(_tc, _e, 1); \ + ed->data[0] = _tc->c_c_index; \ +} + +#define TCP_EVT_SYN_RCVD_HANDLER(_tc,_init, ...) \ +{ \ + if (_init) \ + TCP_EVT_INIT_HANDLER(_tc, 0); \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "syn-rx: irs %u", \ + .format_args = "i4", \ + }; \ + DECLARE_ETD(_tc, _e, 1); \ + ed->data[0] = _tc->irs; \ + TCP_EVT_STATE_CHANGE_HANDLER(_tc); \ +} + +#define TCP_EVT_UNBIND_HANDLER(_tc, ...) \ +{ \ + TCP_EVT_DEALLOC_HANDLER(_tc); \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "unbind: listener %d", \ + }; \ + DECLARE_ETD(_tc, _e, 1); \ + ed->data[0] = _tc->c_c_index; \ + TCP_EVT_DEALLOC_HANDLER(_tc); \ +} + +#define TCP_EVT_DELETE_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "delete: %d", \ + .format_args = "i4", \ + }; \ + DECLARE_ETD(_tc, _e, 1); \ + ed->data[0] = _tc->c_c_index; \ + TCP_EVT_DEALLOC_HANDLER(_tc); \ +} + +#define CONCAT_HELPER(_a, _b) _a##_b +#define CC(_a, _b) CONCAT_HELPER(_a, _b) +#define TCP_EVT_DBG(_evt, _args...) CC(_evt, _HANDLER)(_args) +#else +#define TCP_EVT_DBG(_evt, _args...) +#define TCP_DBG(_fmt, _args...) +#endif + +/* + * State machine + */ +#if TCP_DEBUG_SM + +#define TCP_EVT_STATE_CHANGE_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "state: %s", \ + .format_args = "t4", \ + .n_enum_strings = 11, \ + .enum_strings = { \ + "closed", \ + "listen", \ + "syn-sent", \ + "syn-rcvd", \ + "established", \ + "close_wait", \ + "fin-wait-1", \ + "last-ack", \ + "closing", \ + "fin-wait-2", \ + "time-wait", \ + }, \ + }; \ + DECLARE_ETD(_tc, _e, 1); \ + ed->data[0] = _tc->state; \ +} + +#define TCP_EVT_SYN_SENT_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "syn-tx: iss %u snd_una %u snd_una_max %u snd_nxt %u", \ + .format_args = "i4i4i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 4); \ + ed->data[0] = _tc->iss; \ + ed->data[1] = _tc->snd_una - _tc->iss; \ + ed->data[2] = _tc->snd_una_max - _tc->iss; \ + ed->data[3] = _tc->snd_nxt - _tc->iss; \ + TCP_EVT_STATE_CHANGE_HANDLER(_tc); \ +} + +#define TCP_EVT_SYNACK_SENT_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "synack-tx: iss %u irs %u snd_una %u snd_nxt %u rcv_nxt %u",\ + .format_args = "i4i4i4i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 5); \ + ed->data[0] = _tc->iss; \ + ed->data[1] = _tc->irs; \ + ed->data[2] = _tc->snd_una - _tc->iss; \ + ed->data[3] = _tc->snd_nxt - _tc->iss; \ + ed->data[4] = _tc->rcv_nxt - _tc->irs; \ +} + +#define TCP_EVT_SYNACK_RCVD_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "synack-rx: iss %u irs %u snd_una %u snd_nxt %u rcv_nxt %u",\ + .format_args = "i4i4i4i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 5); \ + ed->data[0] = _tc->iss; \ + ed->data[1] = _tc->irs; \ + ed->data[2] = _tc->snd_una - _tc->iss; \ + ed->data[3] = _tc->snd_nxt - _tc->iss; \ + ed->data[4] = _tc->rcv_nxt - _tc->irs; \ + TCP_EVT_STATE_CHANGE_HANDLER(_tc); \ +} + +#define TCP_EVT_FIN_SENT_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "fin-tx: snd_nxt %d rcv_nxt %d", \ + .format_args = "i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 2); \ + ed->data[0] = _tc->snd_nxt - _tc->iss; \ + ed->data[1] = _tc->rcv_nxt - _tc->irs; \ +} + +#define TCP_EVT_RST_SENT_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "rst-tx: snd_nxt %d rcv_nxt %d", \ + .format_args = "i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 2); \ + ed->data[0] = _tc->snd_nxt - _tc->iss; \ + ed->data[1] = _tc->rcv_nxt - _tc->irs; \ + TCP_EVT_STATE_CHANGE_HANDLER(_tc); \ +} + +#define TCP_EVT_FIN_RCVD_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "fin-rx: snd_nxt %d rcv_nxt %d", \ + .format_args = "i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 2); \ + ed->data[0] = _tc->snd_nxt - _tc->iss; \ + ed->data[1] = _tc->rcv_nxt - _tc->irs; \ +} + +#define TCP_EVT_RST_RCVD_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "rst-rx: snd_nxt %d rcv_nxt %d", \ + .format_args = "i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 2); \ + ed->data[0] = _tc->snd_nxt - _tc->iss; \ + ed->data[1] = _tc->rcv_nxt - _tc->irs; \ +} + +#define TCP_EVT_SYN_RXT_HANDLER(_tc, _type, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "%s-rxt: iss %u irs %u snd_nxt %u rcv_nxt %u", \ + .format_args = "t4i4i4i4i4", \ + .n_enum_strings = 2, \ + .enum_strings = { \ + "syn", \ + "syn-ack", \ + }, \ + }; \ + DECLARE_ETD(_tc, _e, 5); \ + ed->data[0] = _type; \ + ed->data[1] = _tc->iss; \ + ed->data[2] = _tc->irs; \ + ed->data[3] = _tc->snd_nxt - _tc->iss; \ + ed->data[4] = _tc->rcv_nxt - _tc->irs; \ +} + +#else +#define TCP_EVT_SYN_SENT_HANDLER(_tc, ...) +#define TCP_EVT_SYNACK_SENT_HANDLER(_tc, ...) +#define TCP_EVT_SYNACK_RCVD_HANDLER(_tc, ...) +#define TCP_EVT_SYN_RXT_HANDLER(_tc, ...) +#define TCP_EVT_FIN_SENT_HANDLER(_tc, ...) +#define TCP_EVT_RST_SENT_HANDLER(_tc, ...) +#define TCP_EVT_FIN_RCVD_HANDLER(_tc, ...) +#define TCP_EVT_RST_RCVD_HANDLER(_tc, ...) +#define TCP_EVT_STATE_CHANGE_HANDLER(_tc, ...) +#endif + +#if TCP_DEBUG_SM > 1 + +#define TCP_EVT_ACK_SENT_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "ack-tx: acked %u rcv_nxt %u rcv_wnd %u snd_nxt %u snd_wnd %u",\ + .format_args = "i4i4i4i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 5); \ + ed->data[0] = _tc->rcv_nxt - _tc->rcv_las; \ + ed->data[1] = _tc->rcv_nxt - _tc->irs; \ + ed->data[2] = _tc->rcv_wnd; \ + ed->data[3] = _tc->snd_nxt - _tc->iss; \ + ed->data[4] = _tc->snd_wnd; \ +} + +#define TCP_EVT_ACK_RCVD_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "ack-rx: %u snd_una %u snd_wnd %u cwnd %u inflight %u", \ + .format_args = "i4i4i4i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 5); \ + ed->data[0] = _tc->bytes_acked; \ + ed->data[1] = _tc->snd_una - _tc->iss; \ + ed->data[2] = _tc->snd_wnd; \ + ed->data[3] = _tc->cwnd; \ + ed->data[4] = tcp_flight_size(_tc); \ +} + +#define TCP_EVT_PKTIZE_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "tx: una %u snd_nxt %u space %u flight %u rcv_wnd %u",\ + .format_args = "i4i4i4i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 5); \ + ed->data[0] = _tc->snd_una - _tc->iss; \ + ed->data[1] = _tc->snd_nxt - _tc->iss; \ + ed->data[2] = tcp_available_output_snd_space (_tc); \ + ed->data[3] = tcp_flight_size (_tc); \ + ed->data[4] = _tc->rcv_wnd; \ +} + +#define TCP_EVT_INPUT_HANDLER(_tc, _type, _len, _written, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "in: %s len %u written %d rcv_nxt %u rcv_wnd(o) %d", \ + .format_args = "t4i4i4i4i4", \ + .n_enum_strings = 2, \ + .enum_strings = { \ + "order", \ + "ooo", \ + }, \ + }; \ + DECLARE_ETD(_tc, _e, 5); \ + ed->data[0] = _type; \ + ed->data[1] = _len; \ + ed->data[2] = _written; \ + ed->data[3] = (_tc->rcv_nxt - _tc->irs) + _written; \ + ed->data[4] = _tc->rcv_wnd - (_tc->rcv_nxt - _tc->rcv_las); \ +} + +#define TCP_EVT_TIMER_POP_HANDLER(_tc_index, _timer_id, ...) \ +{ \ + tcp_connection_t *_tc; \ + if (_timer_id == TCP_TIMER_RETRANSMIT_SYN \ + || _timer_id == TCP_TIMER_ESTABLISH) \ + { \ + _tc = tcp_half_open_connection_get (_tc_index); \ + } \ + else \ + { \ + u32 _thread_index = vlib_get_thread_index (); \ + _tc = tcp_connection_get (_tc_index, _thread_index); \ + } \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "timer-pop: %s (%d)", \ + .format_args = "t4i4", \ + .n_enum_strings = 7, \ + .enum_strings = { \ + "retransmit", \ + "delack", \ + "persist", \ + "keep", \ + "waitclose", \ + "retransmit syn", \ + "establish", \ + }, \ + }; \ + if (_tc) \ + { \ + DECLARE_ETD(_tc, _e, 2); \ + ed->data[0] = _timer_id; \ + ed->data[1] = _timer_id; \ + } \ + else \ + { \ + clib_warning ("pop %d for unexisting connection %d", _timer_id, \ + _tc_index); \ + } \ +} + +#define TCP_EVT_SEG_INVALID_HANDLER(_tc, _seq, _end, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "seg-inv: seq %u end %u rcv_las %u rcv_nxt %u rcv_wnd %u",\ + .format_args = "i4i4i4i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 5); \ + ed->data[0] = _seq - _tc->irs; \ + ed->data[1] = _end - _tc->irs; \ + ed->data[2] = _tc->rcv_las - _tc->irs; \ + ed->data[3] = _tc->rcv_nxt - _tc->irs; \ + ed->data[4] = _tc->rcv_wnd; \ +} + +#define TCP_EVT_PAWS_FAIL_HANDLER(_tc, _seq, _end, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "paws-err: seq %u end %u tsval %u tsval_recent %u", \ + .format_args = "i4i4i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 4); \ + ed->data[0] = _seq - _tc->irs; \ + ed->data[1] = _end - _tc->irs; \ + ed->data[2] = _tc->rcv_opts.tsval; \ + ed->data[3] = _tc->tsval_recent; \ +} + +#define TCP_EVT_ACK_RCV_ERR_HANDLER(_tc, _type, _ack, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "ack-err: %s ack %u snd_una %u snd_nxt %u una_max %u", \ + .format_args = "t4i4i4i4i4", \ + .n_enum_strings = 3, \ + .enum_strings = { \ + "invalid", \ + "old", \ + "future", \ + }, \ + }; \ + DECLARE_ETD(_tc, _e, 5); \ + ed->data[0] = _type; \ + ed->data[1] = _ack - _tc->iss; \ + ed->data[2] = _tc->snd_una - _tc->iss; \ + ed->data[3] = _tc->snd_nxt - _tc->iss; \ + ed->data[4] = _tc->snd_una_max - _tc->iss; \ +} + +#define TCP_EVT_RCV_WND_SHRUNK_HANDLER(_tc, _obs, _av, ...) \ +{ \ +if (_av > 0) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "huh?: rcv_wnd %u obsd %u av %u rcv_nxt %u rcv_las %u", \ + .format_args = "i4i4i4i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 5); \ + ed->data[0] = _tc->rcv_wnd; \ + ed->data[1] = _obs; \ + ed->data[2] = _av; \ + ed->data[3] = _tc->rcv_nxt - _tc->irs; \ + ed->data[4] = _tc->rcv_las - _tc->irs; \ +} \ +} +#else +#define TCP_EVT_ACK_SENT_HANDLER(_tc, ...) +#define TCP_EVT_ACK_RCVD_HANDLER(_tc, ...) +#define TCP_EVT_PKTIZE_HANDLER(_tc, ...) +#define TCP_EVT_INPUT_HANDLER(_tc, _type, _len, _written, ...) +#define TCP_EVT_TIMER_POP_HANDLER(_tc_index, _timer_id, ...) +#define TCP_EVT_SEG_INVALID_HANDLER(_tc, _seq, _end, ...) +#define TCP_EVT_PAWS_FAIL_HANDLER(_tc, _seq, _end, ...) +#define TCP_EVT_ACK_RCV_ERR_HANDLER(_tc, _type, _ack, ...) +#define TCP_EVT_RCV_WND_SHRUNK_HANDLER(_tc, _obs, _av, ...) +#endif + +/* + * State machine verbose + */ +#if TCP_DEBUG_SM > 2 +#define TCP_EVT_SND_WND_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "snd-wnd update: %u ", \ + .format_args = "i4", \ + }; \ + DECLARE_ETD(_tc, _e, 1); \ + ed->data[0] = _tc->snd_wnd; \ +} + +#define TCP_EVT_OUTPUT_HANDLER(_tc, flags, n_bytes,...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "out: flags %x, bytes %u", \ + .format_args = "i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 2); \ + ed->data[0] = flags; \ + ed->data[1] = n_bytes; \ +} +#else +#define TCP_EVT_SND_WND_HANDLER(_tc, ...) +#define TCP_EVT_OUTPUT_HANDLER(_tc, flags, n_bytes,...) +#endif + +/* + * Congestion Control + */ + +#if TCP_DEBUG_CC + +#define TCP_EVT_CC_EVT_HANDLER(_tc, _sub_evt, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "cc: %s wnd %u snd_cong %u rxt_bytes %u", \ + .format_args = "t4i4i4i4", \ + .n_enum_strings = 6, \ + .enum_strings = { \ + "fast-rxt", \ + "rxt-timeout", \ + "first-rxt", \ + "recovered", \ + "congestion", \ + "undo", \ + }, \ + }; \ + DECLARE_ETD(_tc, _e, 4); \ + ed->data[0] = _sub_evt; \ + ed->data[1] = tcp_available_snd_space (_tc); \ + ed->data[2] = _tc->snd_congestion - _tc->iss; \ + ed->data[3] = _tc->snd_rxt_bytes; \ +} + +#define TCP_EVT_CC_RTX_HANDLER(_tc, offset, n_bytes, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "rxt: snd_nxt %u offset %u snd %u rxt %u", \ + .format_args = "i4i4i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 4); \ + ed->data[0] = _tc->snd_nxt - _tc->iss; \ + ed->data[1] = offset; \ + ed->data[2] = n_bytes; \ + ed->data[3] = _tc->snd_rxt_bytes; \ +} + +#define TCP_EVT_DUPACK_SENT_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "dack-tx: rcv_nxt %u rcv_wnd %u snd_nxt %u av_wnd %u snd_wnd %u",\ + .format_args = "i4i4i4i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 5); \ + ed->data[0] = _tc->rcv_nxt - _tc->irs; \ + ed->data[1] = _tc->rcv_wnd; \ + ed->data[2] = _tc->snd_nxt - _tc->iss; \ + ed->data[3] = tcp_available_snd_wnd(_tc); \ + ed->data[4] = _tc->snd_wnd; \ +} + +#define TCP_EVT_DUPACK_RCVD_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "dack-rx: snd_una %u cwnd %u snd_wnd %u flight %u rcv_wnd %u",\ + .format_args = "i4i4i4i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 5); \ + ed->data[0] = _tc->snd_una - _tc->iss; \ + ed->data[1] = _tc->cwnd; \ + ed->data[2] = _tc->snd_wnd; \ + ed->data[3] = tcp_flight_size(_tc); \ + ed->data[4] = _tc->rcv_wnd; \ +} + +#define TCP_EVT_CC_PACK_HANDLER(_tc, ...) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "pack: snd_una %u snd_una_max %u", \ + .format_args = "i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 2); \ + ed->data[0] = _tc->snd_una - _tc->iss; \ + ed->data[1] = _tc->snd_una_max - _tc->iss; \ +} +#else +#define TCP_EVT_CC_RTX_HANDLER(_tc, offset, n_bytes, ...) +#define TCP_EVT_DUPACK_SENT_HANDLER(_tc, ...) +#define TCP_EVT_DUPACK_RCVD_HANDLER(_tc, ...) +#define TCP_EVT_CC_PACK_HANDLER(_tc, ...) +#define TCP_EVT_CC_EVT_HANDLER(_tc, _sub_evt, ...) +#endif + +/* + * Congestion control stats + */ +#if TCP_DEBUG_CC_STAT + +#define STATS_INTERVAL 1 + +#define TCP_EVT_CC_RTO_STAT_HANDLER(_tc, ...) \ +{ \ +if (_tc->c_cc_stat_tstamp + STATS_INTERVAL < tcp_time_now()) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "rto_stat: rto %u srtt %u rttvar %u ", \ + .format_args = "i4i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 3); \ + ed->data[0] = _tc->rto; \ + ed->data[1] = _tc->srtt; \ + ed->data[2] = _tc->rttvar; \ +} \ +} + +#define TCP_EVT_CC_STAT_HANDLER(_tc, ...) \ +{ \ +if (_tc->c_cc_stat_tstamp + STATS_INTERVAL < tcp_time_now()) \ +{ \ + ELOG_TYPE_DECLARE (_e) = \ + { \ + .format = "cc_stat: cwnd %u flight %u space %u ssthresh %u snd_wnd %u",\ + .format_args = "i4i4i4i4i4", \ + }; \ + DECLARE_ETD(_tc, _e, 5); \ + ed->data[0] = _tc->cwnd; \ + ed->data[1] = tcp_flight_size (_tc); \ + ed->data[2] = tcp_snd_space (_tc); \ + ed->data[3] = _tc->ssthresh; \ + ed->data[4] = _tc->snd_wnd; \ + TCP_EVT_CC_RTO_STAT_HANDLER (_tc); \ + _tc->c_cc_stat_tstamp = tcp_time_now(); \ +} \ +} + +#else +#define TCP_EVT_CC_STAT_HANDLER(_tc, ...) +#endif + +#endif /* SRC_VNET_TCP_TCP_DEBUG_H_ */ +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |