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Add TSCH stats

This commit is contained in:
Atis Elsts 2018-08-31 15:11:25 +01:00
parent a7fbdfa274
commit ad577cf77f
12 changed files with 964 additions and 0 deletions
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4
arch/platform/cooja/dev/cooja-radio.c
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@ -330,6 +330,10 @@ get_value(radio_param_t param, radio_value_t *value)
case RADIO_PARAM_LAST_LINK_QUALITY:
*value = simLQI;
return RADIO_RESULT_OK;
case RADIO_PARAM_RSSI:
/* return a fixed value depending on the channel */
*value = -90 + simRadioChannel - 11;
return RADIO_RESULT_OK;
default:
return RADIO_RESULT_NOT_SUPPORTED;
}

28
examples/6tisch/tsch-stats/Makefile Normal file
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@ -0,0 +1,28 @@
CONTIKI_PROJECT = node
all: $(CONTIKI_PROJECT)
CONTIKI=../../..
# force Orchestra from command line
MAKE_WITH_ORCHESTRA ?= 0
# force Security from command line
MAKE_WITH_SECURITY ?= 0
# print #routes periodically, used for regression tests
MAKE_WITH_PERIODIC_ROUTES_PRINT ?= 0
MAKE_MAC = MAKE_MAC_TSCH
MODULES += os/services/shell
ifeq ($(MAKE_WITH_ORCHESTRA),1)
MODULES += os/services/orchestra
endif
ifeq ($(MAKE_WITH_SECURITY),1)
CFLAGS += -DWITH_SECURITY=1
endif
ifeq ($(MAKE_WITH_PERIODIC_ROUTES_PRINT),1)
CFLAGS += -DWITH_PERIODIC_ROUTES_PRINT=1
endif
include $(CONTIKI)/Makefile.include

1
examples/6tisch/tsch-stats/README.md Normal file
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@ -0,0 +1 @@
Demonstration of TSCH stats.

93
examples/6tisch/tsch-stats/node.c Normal file
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@ -0,0 +1,93 @@
/*
* Copyright (c) 2015, SICS Swedish ICT.
* Copyright (c) 2017, University of Bristol - http://www.bristol.ac.uk
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
/**
* \file
* A RPL+TSCH node.
*
* \author Simon Duquennoy <simonduq@sics.se>
* Atis Elsts <atis.elsts@bristol.ac.uk>
*/
#include "contiki.h"
#include "node-id.h"
#include "rpl.h"
#include "rpl-dag-root.h"
#include "sys/log.h"
#include "net/ipv6/uip-ds6-route.h"
#include "net/mac/tsch/tsch.h"
#include "net/mac/tsch/tsch-log.h"
#if UIP_CONF_IPV6_RPL_LITE == 0
#include "rpl-private.h"
#endif /* UIP_CONF_IPV6_RPL_LITE == 0 */
#define DEBUG DEBUG_PRINT
#include "net/ipv6/uip-debug.h"
/*---------------------------------------------------------------------------*/
PROCESS(node_process, "RPL Node");
AUTOSTART_PROCESSES(&node_process);
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(node_process, ev, data)
{
int is_coordinator;
PROCESS_BEGIN();
is_coordinator = (node_id == 1);
if(is_coordinator) {
rpl_dag_root_init_dag_immediately();
}
NETSTACK_MAC.on();
#if WITH_PERIODIC_ROUTES_PRINT
{
static struct etimer et;
/* Print out routing tables every minute */
etimer_set(&et, CLOCK_SECOND * 60);
while(1) {
/* Used for non-regression testing */
#if RPL_WITH_STORING
PRINTF("Routing entries: %u\n", uip_ds6_route_num_routes());
#endif
#if RPL_WITH_NON_STORING
PRINTF("Routing links: %u\n", rpl_ns_num_nodes());
#endif
PROCESS_YIELD_UNTIL(etimer_expired(&et));
etimer_reset(&et);
}
}
#endif /* WITH_PERIODIC_ROUTES_PRINT */
PROCESS_END();
}
/*---------------------------------------------------------------------------*/

92
examples/6tisch/tsch-stats/project-conf.h Normal file
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@ -0,0 +1,92 @@
/*
* Copyright (c) 2015, SICS Swedish ICT.
* Copyright (c) 2017, University of Bristol - http://www.bristol.ac.uk
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
/**
* \author Simon Duquennoy <simonduq@sics.se>
* Atis Elsts <atis.elsts@bristol.ac.uk>
*/
#ifndef __PROJECT_CONF_H__
#define __PROJECT_CONF_H__
/* Set to enable TSCH security */
#ifndef WITH_SECURITY
#define WITH_SECURITY 0
#endif /* WITH_SECURITY */
/* USB serial takes space, free more space elsewhere */
#define SICSLOWPAN_CONF_FRAG 0
#define UIP_CONF_BUFFER_SIZE 160
/*******************************************************/
/******************* Configure TSCH ********************/
/*******************************************************/
/* IEEE802.15.4 PANID */
#define IEEE802154_CONF_PANID 0x81a5
/* Do not start TSCH at init, wait for NETSTACK_MAC.on() */
#define TSCH_CONF_AUTOSTART 0
/* 6TiSCH minimal schedule length.
* Larger values result in less frequent active slots: reduces capacity and saves energy. */
#define TSCH_SCHEDULE_CONF_DEFAULT_LENGTH 3
#if WITH_SECURITY
/* Enable security */
#define LLSEC802154_CONF_ENABLED 1
#endif /* WITH_SECURITY */
/* Enable TSCH statistics */
#define TSCH_STATS_CONF_ON 1
/* Enable periodic RSSI sampling for TSCH statistics */
#define TSCH_STATS_CONF_SAMPLE_NOISE_RSSI 1
/* Reduce the TSCH stat "decay to normal" period */
#define TSCH_STATS_CONF_DECAY_INTERVAL (60 * CLOCK_SECOND)
/*******************************************************/
/************* Other system configuration **************/
/*******************************************************/
/* Logging */
#define LOG_CONF_LEVEL_RPL LOG_LEVEL_INFO
#define LOG_CONF_LEVEL_TCPIP LOG_LEVEL_WARN
#define LOG_CONF_LEVEL_IPV6 LOG_LEVEL_WARN
#define LOG_CONF_LEVEL_6LOWPAN LOG_LEVEL_WARN
#define LOG_CONF_LEVEL_MAC LOG_LEVEL_DBG
#define LOG_CONF_LEVEL_FRAMER LOG_LEVEL_INFO
#define TSCH_LOG_CONF_PER_SLOT 1
#endif /* __PROJECT_CONF_H__ */

263
examples/6tisch/tsch-stats/tsch-stats-cooja.csc Normal file
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@ -0,0 +1,263 @@
<?xml version="1.0" encoding="UTF-8"?>
<simconf>
<project EXPORT="discard">[APPS_DIR]/mrm</project>
<project EXPORT="discard">[APPS_DIR]/mspsim</project>
<project EXPORT="discard">[APPS_DIR]/avrora</project>
<project EXPORT="discard">[APPS_DIR]/serial_socket</project>
<project EXPORT="discard">[APPS_DIR]/collect-view</project>
<project EXPORT="discard">[APPS_DIR]/powertracker</project>
<simulation>
<title>TSCH stats</title>
<randomseed>123456</randomseed>
<motedelay_us>1000000</motedelay_us>
<radiomedium>
org.contikios.cooja.radiomediums.UDGM
<transmitting_range>50.0</transmitting_range>
<interference_range>100.0</interference_range>
<success_ratio_tx>1.0</success_ratio_tx>
<success_ratio_rx>0.5</success_ratio_rx>
</radiomedium>
<events>
<logoutput>40000</logoutput>
</events>
<motetype>
org.contikios.cooja.contikimote.ContikiMoteType
<identifier>mtype660</identifier>
<description>RPL/TSCH Node</description>
<source>[CONFIG_DIR]/node.c</source>
<commands>make TARGET=cooja clean
make TARGET=cooja node.cooja</commands>
<moteinterface>org.contikios.cooja.interfaces.Position</moteinterface>
<moteinterface>org.contikios.cooja.interfaces.Battery</moteinterface>
<moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiVib</moteinterface>
<moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiMoteID</moteinterface>
<moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiRS232</moteinterface>
<moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiBeeper</moteinterface>
<moteinterface>org.contikios.cooja.interfaces.RimeAddress</moteinterface>
<moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiIPAddress</moteinterface>
<moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiRadio</moteinterface>
<moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiButton</moteinterface>
<moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiPIR</moteinterface>
<moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiClock</moteinterface>
<moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiLED</moteinterface>
<moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiCFS</moteinterface>
<moteinterface>org.contikios.cooja.interfaces.Mote2MoteRelations</moteinterface>
<moteinterface>org.contikios.cooja.interfaces.MoteAttributes</moteinterface>
<symbols>false</symbols>
</motetype>
<mote>
<interface_config>
org.contikios.cooja.interfaces.Position
<x>-1.285769821276336</x>
<y>38.58045647334346</y>
<z>0.0</z>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiMoteID
<id>1</id>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiRadio
<bitrate>250.0</bitrate>
</interface_config>
<motetype_identifier>mtype660</motetype_identifier>
</mote>
<mote>
<interface_config>
org.contikios.cooja.interfaces.Position
<x>-19.324109516886306</x>
<y>76.23135780254927</y>
<z>0.0</z>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiMoteID
<id>2</id>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiRadio
<bitrate>250.0</bitrate>
</interface_config>
<motetype_identifier>mtype660</motetype_identifier>
</mote>
<mote>
<interface_config>
org.contikios.cooja.interfaces.Position
<x>5.815501305791592</x>
<y>76.77463755494317</y>
<z>0.0</z>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiMoteID
<id>3</id>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiRadio
<bitrate>250.0</bitrate>
</interface_config>
<motetype_identifier>mtype660</motetype_identifier>
</mote>
<mote>
<interface_config>
org.contikios.cooja.interfaces.Position
<x>31.920697784030082</x>
<y>50.5212265977149</y>
<z>0.0</z>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiMoteID
<id>4</id>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiRadio
<bitrate>250.0</bitrate>
</interface_config>
<motetype_identifier>mtype660</motetype_identifier>
</mote>
<mote>
<interface_config>
org.contikios.cooja.interfaces.Position
<x>47.21747673247198</x>
<y>30.217765340599726</y>
<z>0.0</z>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiMoteID
<id>5</id>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiRadio
<bitrate>250.0</bitrate>
</interface_config>
<motetype_identifier>mtype660</motetype_identifier>
</mote>
<mote>
<interface_config>
org.contikios.cooja.interfaces.Position
<x>10.622284947035123</x>
<y>109.81862399725188</y>
<z>0.0</z>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiMoteID
<id>6</id>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiRadio
<bitrate>250.0</bitrate>
</interface_config>
<motetype_identifier>mtype660</motetype_identifier>
</mote>
<mote>
<interface_config>
org.contikios.cooja.interfaces.Position
<x>52.41150716335335</x>
<y>109.93228340481916</y>
<z>0.0</z>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiMoteID
<id>7</id>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiRadio
<bitrate>250.0</bitrate>
</interface_config>
<motetype_identifier>mtype660</motetype_identifier>
</mote>
<mote>
<interface_config>
org.contikios.cooja.interfaces.Position
<x>70.18727461718498</x>
<y>70.06861701541145</y>
<z>0.0</z>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiMoteID
<id>8</id>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiRadio
<bitrate>250.0</bitrate>
</interface_config>
<motetype_identifier>mtype660</motetype_identifier>
</mote>
<mote>
<interface_config>
org.contikios.cooja.interfaces.Position
<x>80.29870484201041</x>
<y>99.37351603835938</y>
<z>0.0</z>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiMoteID
<id>9</id>
</interface_config>
<interface_config>
org.contikios.cooja.contikimote.interfaces.ContikiRadio
<bitrate>250.0</bitrate>
</interface_config>
<motetype_identifier>mtype660</motetype_identifier>
</mote>
</simulation>
<plugin>
org.contikios.cooja.plugins.SimControl
<width>242</width>
<z>4</z>
<height>160</height>
<location_x>11</location_x>
<location_y>241</location_y>
</plugin>
<plugin>
org.contikios.cooja.plugins.Visualizer
<plugin_config>
<moterelations>true</moterelations>
<skin>org.contikios.cooja.plugins.skins.IDVisualizerSkin</skin>
<skin>org.contikios.cooja.plugins.skins.GridVisualizerSkin</skin>
<skin>org.contikios.cooja.plugins.skins.TrafficVisualizerSkin</skin>
<skin>org.contikios.cooja.plugins.skins.UDGMVisualizerSkin</skin>
<viewport>1.7405603810040515 0.0 0.0 1.7405603810040515 47.95980153208088 -42.576134155447555</viewport>
</plugin_config>
<width>236</width>
<z>3</z>
<height>230</height>
<location_x>1</location_x>
<location_y>1</location_y>
</plugin>
<plugin>
org.contikios.cooja.plugins.LogListener
<plugin_config>
<filter />
<formatted_time />
<coloring />
</plugin_config>
<width>1031</width>
<z>0</z>
<height>394</height>
<location_x>273</location_x>
<location_y>6</location_y>
</plugin>
<plugin>
org.contikios.cooja.plugins.TimeLine
<plugin_config>
<mote>0</mote>
<mote>1</mote>
<mote>2</mote>
<mote>3</mote>
<mote>4</mote>
<mote>5</mote>
<mote>6</mote>
<mote>7</mote>
<mote>8</mote>
<showRadioRXTX />
<showRadioHW />
<showLEDs />
<zoomfactor>16529.88882215865</zoomfactor>
</plugin_config>
<width>1304</width>
<z>2</z>
<height>311</height>
<location_x>0</location_x>
<location_y>412</location_y>
</plugin>
</simconf>

2
os/net/mac/tsch/tsch-queue.c
View File

@ -173,6 +173,8 @@ tsch_queue_update_time_source(const linkaddr_t *new_addr)
old_time_src->is_time_source = 0;
}
tsch_stats_reset_neighbor_stats();
#ifdef TSCH_CALLBACK_NEW_TIME_SOURCE
TSCH_CALLBACK_NEW_TIME_SOURCE(old_time_src, new_time_src);
#endif

16
os/net/mac/tsch/tsch-slot-operation.c
View File

@ -625,6 +625,7 @@ PT_THREAD(tsch_tx_slot(struct pt *pt, struct rtimer *t))
"!truncated dr %d %d", (int)eack_time_correction, (int)drift_correction);
);
}
tsch_stats_on_time_synchronization(eack_time_correction);
is_drift_correction_used = 1;
tsch_timesync_update(current_neighbor, since_last_timesync, drift_correction);
/* Keep track of sync time */
@ -666,6 +667,11 @@ PT_THREAD(tsch_tx_slot(struct pt *pt, struct rtimer *t))
ringbufindex_put(&dequeued_ringbuf);
}
/* If this is an unicast packet to timesource, update stats */
if(current_neighbor != NULL && current_neighbor->is_time_source) {
tsch_stats_tx_packet(current_neighbor, mac_tx_status, tsch_current_channel);
}
/* Log every tx attempt */
TSCH_LOG_ADD(tsch_log_tx,
log->tx.mac_tx_status = mac_tx_status;
@ -764,6 +770,7 @@ PT_THREAD(tsch_rx_slot(struct pt *pt, struct rtimer *t))
static int header_len;
static frame802154_t frame;
radio_value_t radio_last_rssi;
radio_value_t radio_last_lqi;
/* Read packet */
current_input->len = NETSTACK_RADIO.read((void *)current_input->payload, TSCH_PACKET_MAX_LEN);
@ -821,6 +828,7 @@ PT_THREAD(tsch_rx_slot(struct pt *pt, struct rtimer *t))
int do_nack = 0;
rx_count++;
estimated_drift = RTIMER_CLOCK_DIFF(expected_rx_time, rx_start_time);
tsch_stats_on_time_synchronization(estimated_drift);
#if TSCH_TIMESYNC_REMOVE_JITTER
/* remove jitter due to measurement errors */
@ -889,6 +897,12 @@ PT_THREAD(tsch_rx_slot(struct pt *pt, struct rtimer *t))
/* Add current input to ringbuf */
ringbufindex_put(&input_ringbuf);
/* If the neighbor is known, update its stats */
if(n != NULL) {
NETSTACK_RADIO.get_value(RADIO_PARAM_LAST_LINK_QUALITY, &radio_last_lqi);
tsch_stats_rx_packet(n, current_input->rssi, radio_last_lqi, tsch_current_channel);
}
/* Log every reception */
TSCH_LOG_ADD(tsch_log_rx,
linkaddr_copy(&log->rx.src, (linkaddr_t *)&frame.src_addr);
@ -951,6 +965,8 @@ PT_THREAD(tsch_slot_operation(struct rtimer *t, void *ptr))
int is_active_slot;
TSCH_DEBUG_SLOT_START();
tsch_in_slot_operation = 1;
/* Measure on-air noise level while TSCH is idle */
tsch_stats_sample_rssi();
/* Reset drift correction */
drift_correction = 0;
is_drift_correction_used = 0;

236
os/net/mac/tsch/tsch-stats.c Normal file
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@ -0,0 +1,236 @@
/*
* Copyright (c) 2016-2017, University of Bristol - http://www.bristol.ac.uk
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
/**
* \file
* Source file for TSCH statistics
* \author
* Atis Elsts <atis.elsts@bristol.ac.uk>
*/
#include "contiki.h"
#include "net/mac/tsch/tsch.h"
#include "net/netstack.h"
#include "dev/radio.h"
/* Log configuration */
#include "sys/log.h"
#define LOG_MODULE "TSCH Stats"
#define LOG_LEVEL LOG_LEVEL_MAC
/*---------------------------------------------------------------------------*/
#if TSCH_STATS_ON
/*---------------------------------------------------------------------------*/
struct tsch_global_stats tsch_stats;
struct tsch_neighbor_stats tsch_neighbor_stats;
/* Called every TSCH_STATS_DECAY_INTERVAL ticks */
static struct ctimer periodic_timer;
static void periodic(void *);
/*---------------------------------------------------------------------------*/
void
tsch_stats_init(void)
{
#if TSCH_STATS_SAMPLE_NOISE_RSSI
int i;
for(i = 0; i < TSCH_STATS_NUM_CHANNELS; ++i) {
tsch_stats.noise_rssi[i] = TSCH_STATS_DEFAULT_RSSI;
tsch_stats.channel_free_ewma[i] = TSCH_STATS_DEFAULT_CHANNEL_FREE;
}
#endif
tsch_stats_reset_neighbor_stats();
/* Start the periodic processing soonish */
ctimer_set(&periodic_timer, TSCH_STATS_DECAY_INTERVAL / 10, periodic, NULL);
}
/*---------------------------------------------------------------------------*/
void
tsch_stats_reset_neighbor_stats(void)
{
int i;
struct tsch_channel_stats *ch_stats;
ch_stats = tsch_neighbor_stats.channel_stats;
for(i = 0; i < TSCH_STATS_NUM_CHANNELS; ++i) {
ch_stats[i].rssi = TSCH_STATS_DEFAULT_RSSI;
ch_stats[i].lqi = TSCH_STATS_DEFAULT_LQI;
ch_stats[i].p_tx_success = TSCH_STATS_DEFAULT_P_TX;
}
}
/*---------------------------------------------------------------------------*/
struct tsch_neighbor_stats *
tsch_stats_get_from_neighbor(struct tsch_neighbor *n)
{
/* Due to RAM limitations, this module only collects neighbor stats about the time source */
if(n != NULL && n->is_time_source) {
return &tsch_neighbor_stats;
}
return NULL;
}
/*---------------------------------------------------------------------------*/
void
tsch_stats_tx_packet(struct tsch_neighbor *n, uint8_t mac_status, uint8_t channel)
{
struct tsch_neighbor_stats *stats;
stats = tsch_stats_get_from_neighbor(n);
if(stats != NULL) {
uint8_t index = tsch_stats_channel_to_index(channel);
uint16_t new_tx_value = (mac_status == MAC_TX_OK ? 1 : 0);
new_tx_value *= TSCH_STATS_BINARY_SCALING_FACTOR;
TSCH_STATS_EWMA_UPDATE(stats->channel_stats[index].p_tx_success, new_tx_value);
}
}
/*---------------------------------------------------------------------------*/
void
tsch_stats_rx_packet(struct tsch_neighbor *n, int8_t rssi, uint8_t lqi, uint8_t channel)
{
struct tsch_neighbor_stats *stats;
stats = tsch_stats_get_from_neighbor(n);
if(stats != NULL) {
uint8_t index = tsch_stats_channel_to_index(channel);
TSCH_STATS_EWMA_UPDATE(stats->channel_stats[index].rssi,
TSCH_STATS_TRANSFORM(rssi, TSCH_STATS_RSSI_SCALING_FACTOR));
TSCH_STATS_EWMA_UPDATE(stats->channel_stats[index].lqi,
TSCH_STATS_TRANSFORM(lqi, TSCH_STATS_LQI_SCALING_FACTOR));
}
}
/*---------------------------------------------------------------------------*/
void
tsch_stats_on_time_synchronization(int32_t sync_error)
{
/* Update the maximal error so far if the absolute value of the new one is larger */
tsch_stats.max_sync_error = MAX(tsch_stats.max_sync_error, ABS(sync_error));
}
/*---------------------------------------------------------------------------*/
void
tsch_stats_sample_rssi(void)
{
#if TSCH_STATS_SAMPLE_NOISE_RSSI
uint8_t index;
radio_value_t value;
radio_result_t rv;
static uint8_t measurement_channel = TSCH_STATS_FIRST_CHANNEL;
index = tsch_stats_channel_to_index(measurement_channel);
/* Select the measurement channel */
NETSTACK_RADIO.set_value(RADIO_PARAM_CHANNEL, measurement_channel);
/* Need to explicitly turn on for Coojamotes */
NETSTACK_RADIO.on();
/* Measure the background noise RSSI and act on it */
rv = NETSTACK_RADIO.get_value(RADIO_PARAM_RSSI, &value);
if(rv == RADIO_RESULT_OK) {
tsch_stat_t prev_busyness_metric;
uint16_t is_free;
is_free = (((int)value <= TSCH_STATS_BUSY_CHANNEL_RSSI) ? 1 : 0) * TSCH_STATS_BINARY_SCALING_FACTOR;
/* LOG_DBG("noise RSSI on %u: %d\n", measurement_channel, (int)value); */
TSCH_STATS_EWMA_UPDATE(tsch_stats.noise_rssi[index],
TSCH_STATS_TRANSFORM((int)value, TSCH_STATS_RSSI_SCALING_FACTOR));
prev_busyness_metric = tsch_stats.channel_free_ewma[index];
(void)prev_busyness_metric;
TSCH_STATS_EWMA_UPDATE(tsch_stats.channel_free_ewma[index], is_free);
/* potentially select a new TSCH hopping sequence */
#ifdef TSCH_CALLBACK_CHANNEL_STATS_UPDATED
TSCH_CALLBACK_CHANNEL_STATS_UPDATED(measurement_channel, prev_busyness_metric);
#endif
} else {
LOG_ERR("! sampling RSSI failed: %d\n", (int)rv);
}
/* Increment the channel index for the next time */
measurement_channel++;
if(measurement_channel >= TSCH_STATS_FIRST_CHANNEL + TSCH_STATS_NUM_CHANNELS) {
measurement_channel = TSCH_STATS_FIRST_CHANNEL;
}
#endif /* TSCH_STATS_SAMPLE_NOISE_RSSI */
}
/*---------------------------------------------------------------------------*/
/* Periodic timer called every TSCH_STATS_DECAY_INTERVAL ticks */
static void
periodic(void *ptr)
{
int i;
struct tsch_neighbor *timesource;
struct tsch_channel_stats *stats = tsch_neighbor_stats.channel_stats;
#if TSCH_STATS_SAMPLE_NOISE_RSSI
LOG_DBG("Noise RSSI:\n");
for(i = 0; i < TSCH_STATS_NUM_CHANNELS; ++i) {
LOG_DBG(" channel %u: %d rssi, %u/%u free\n",
TSCH_STATS_FIRST_CHANNEL + i,
tsch_stats.noise_rssi[i] / TSCH_STATS_RSSI_SCALING_FACTOR,
tsch_stats.channel_free_ewma[i],
TSCH_STATS_BINARY_SCALING_FACTOR);
}
#endif
timesource = tsch_queue_get_time_source();
if(timesource != NULL) {
LOG_DBG("Time source neighbor:\n");
for(i = 0; i < TSCH_STATS_NUM_CHANNELS; ++i) {
LOG_DBG(" channel %u: %d rssi, %u lqi, %u/%u P(tx)\n",
TSCH_STATS_FIRST_CHANNEL + i,
stats[i].rssi / TSCH_STATS_RSSI_SCALING_FACTOR,
stats[i].lqi / TSCH_STATS_LQI_SCALING_FACTOR,
stats[i].p_tx_success,
TSCH_STATS_BINARY_SCALING_FACTOR);
}
}
/* Do not decay the periodic global stats, as they are updated independely of packet rate */
for(i = 0; i < TSCH_STATS_NUM_CHANNELS; ++i) {
/* decay Rx stats */
TSCH_STATS_EWMA_UPDATE(stats[i].rssi, TSCH_STATS_DEFAULT_RSSI);
TSCH_STATS_EWMA_UPDATE(stats[i].lqi, TSCH_STATS_DEFAULT_LQI);
/* decay Tx stats */
TSCH_STATS_EWMA_UPDATE(stats[i].p_tx_success, TSCH_STATS_DEFAULT_P_TX);
}
ctimer_set(&periodic_timer, TSCH_STATS_DECAY_INTERVAL, periodic, NULL);
}
/*---------------------------------------------------------------------------*/
#endif /* TSCH_STATS_ON */
/*---------------------------------------------------------------------------*/

223
os/net/mac/tsch/tsch-stats.h Normal file
View File

@ -0,0 +1,223 @@
/*
* Copyright (c) 2016-2017, University of Bristol - http://www.bristol.ac.uk
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
/**
* \file
* Header file for TSCH statistics
* \author
* Atis Elsts <atis.elsts@bristol.ac.uk>
*/
/**
* \addtogroup tsch
* @{
*/
#ifndef __TSCH_STATS_H__
#define __TSCH_STATS_H__
/********** Includes **********/
#include "contiki.h"
#include "net/linkaddr.h"
#include "net/mac/tsch/tsch-conf.h"
#include "net/mac/tsch/tsch-queue.h"
/************ Constants ***********/
/* Enable the collection of TSCH statistics? */
#ifdef TSCH_STATS_CONF_ON
#define TSCH_STATS_ON TSCH_STATS_CONF_ON
#else
#define TSCH_STATS_ON 0
#endif
/* Enable the collection background noise RSSI? */
#ifdef TSCH_STATS_CONF_SAMPLE_NOISE_RSSI
#define TSCH_STATS_SAMPLE_NOISE_RSSI TSCH_STATS_CONF_SAMPLE_NOISE_RSSI
#else
#define TSCH_STATS_SAMPLE_NOISE_RSSI 0
#endif
/*
* How to update a TSCH statistic.
* Uses a hardcoded EWMA alpha value equal to 0.125 by default.
*/
#ifdef TSCH_STATS_CONF_EWMA_UPDATE
#define TSCH_STATS_EWMA_UPDATE TSCH_STATS_CONF_EWMA_UPDATE
#else
#define TSCH_STATS_EWMA_UPDATE(x, v) (x) = (((x) * 7 / 8) + (v) / 8)
#endif
/*
* A channel is considered busy if at the sampling instant
* it has RSSI higher or equal to this limit.
*/
#ifdef TSCH_STATS_CONF_BUSY_CHANNEL_RSSI
#define TSCH_STATS_BUSY_CHANNEL_RSSI TSCH_STATS_CONF_BUSY_CHANNEL_RSSI
#else
#define TSCH_STATS_BUSY_CHANNEL_RSSI -85
#endif
/* The period after which stat values are decayed towards the default values */
#ifdef TSCH_STATS_CONF_DECAY_INTERVAL
#define TSCH_STATS_DECAY_INTERVAL TSCH_STATS_CONF_DECAY_INTERVAL
#else
#define TSCH_STATS_DECAY_INTERVAL (20ul * 60 * CLOCK_SECOND)
#endif
/*
* The total number of MAC-layer channels.
* Sixteen for the IEEE802.15.4 2.4 GHz band.
*/
#ifdef TSCH_STATS_CONF_NUM_CHANNELS
#define TSCH_STATS_NUM_CHANNELS TSCH_STATS_CONF_NUM_CHANNELS
#else
#define TSCH_STATS_NUM_CHANNELS 16
#endif
/* The number of the first MAC-layer channel. */
#ifdef TSCH_STATS_CONF_FIRST_CHANNEL
#define TSCH_STATS_FIRST_CHANNEL TSCH_STATS_CONF_FIRST_CHANNEL
#else
#define TSCH_STATS_FIRST_CHANNEL 11
#endif
/* Internal: the scaling of the various stats */
#define TSCH_STATS_RSSI_SCALING_FACTOR -16
#define TSCH_STATS_LQI_SCALING_FACTOR 16
#define TSCH_STATS_BINARY_SCALING_FACTOR 4096
/*
* Transform a statistic from external form to the internal representation.
* To transform back, simply divide by the factor.
*/
#define TSCH_STATS_TRANSFORM(x, factor) ((int16_t)(x) * factor)
/* The default value for RSSI statistics: -90 dBm */
#define TSCH_STATS_DEFAULT_RSSI TSCH_STATS_TRANSFORM(-90, TSCH_STATS_RSSI_SCALING_FACTOR)
/* The default value for LQI statistics: 100 */
#define TSCH_STATS_DEFAULT_LQI TSCH_STATS_TRANSFORM(100, TSCH_STATS_LQI_SCALING_FACTOR)
/* The default value for P_tx (packet transmission probability) statistics: 50% */
#define TSCH_STATS_DEFAULT_P_TX (TSCH_STATS_BINARY_SCALING_FACTOR / 2)
/* The default value for channel free status: 100% */
#define TSCH_STATS_DEFAULT_CHANNEL_FREE TSCH_STATS_BINARY_SCALING_FACTOR
/* #define these callbacks to do the adaptive channel selection based on RSSI */
/* TSCH_CALLBACK_CHANNEL_STATS_UPDATED(channel, previous_metric); */
/* TSCH_CALLBACK_SELECT_CHANNELS(); */
/************ Types ***********/
typedef uint16_t tsch_stat_t;
struct tsch_global_stats {
/* the maximum synchronization error */
uint32_t max_sync_error;
/* number of disassociations */
uint16_t num_disassociations;
#if TSCH_STATS_SAMPLE_NOISE_RSSI
/* per-channel noise estimates */
tsch_stat_t noise_rssi[TSCH_STATS_NUM_CHANNELS];
/* derived from `noise_rssi` and BUSY_CHANNEL_RSSI */
tsch_stat_t channel_free_ewma[TSCH_STATS_NUM_CHANNELS];
#endif /* TSCH_STATS_SAMPLE_NOISE_RSSI */
};
struct tsch_channel_stats {
/* EWMA, from receptions */
tsch_stat_t rssi;
/* EWMA, from receptions */
tsch_stat_t lqi;
/* EWMA of probability, for unicast transmissions only */
tsch_stat_t p_tx_success;
};
struct tsch_neighbor_stats {
struct tsch_channel_stats channel_stats[TSCH_STATS_NUM_CHANNELS];
};
struct tsch_neighbor; /* Forward declaration */
/************ External variables ***********/
#if TSCH_STATS_ON
/* Statistics for the local node */
extern struct tsch_global_stats tsch_stats;
/* For the timesource neighbor */
extern struct tsch_neighbor_stats tsch_neighbor_stats;
/************ Functions ***********/
void tsch_stats_init(void);
void tsch_stats_tx_packet(struct tsch_neighbor *, uint8_t mac_status, uint8_t channel);
void tsch_stats_rx_packet(struct tsch_neighbor *, int8_t rssi, uint8_t lqi, uint8_t channel);
void tsch_stats_on_time_synchronization(int32_t sync_error);
void tsch_stats_sample_rssi(void);
struct tsch_neighbor_stats *tsch_stats_get_from_neighbor(struct tsch_neighbor *);
void tsch_stats_reset_neighbor_stats(void);
#else /* TSCH_STATS_ON */
#define tsch_stats_init()
#define tsch_stats_tx_packet(n, mac_status, channel)
#define tsch_stats_rx_packet(n, rssi, lqi, channel)
#define tsch_stats_on_time_synchronization(sync_error)
#define tsch_stats_sample_rssi()
#define tsch_stats_get_from_neighbor(neighbor) NULL
#define tsch_stats_reset_neighbor_stats()
#endif /* TSCH_STATS_ON */
static inline uint8_t
tsch_stats_channel_to_index(uint8_t channel)
{
return channel - TSCH_STATS_FIRST_CHANNEL;
}
static inline uint8_t
tsch_stats_index_to_channel(uint8_t channel_index)
{
return channel_index + TSCH_STATS_FIRST_CHANNEL;
}
#endif /* __TSCH_STATS_H__ */
/** @} */

5
os/net/mac/tsch/tsch.c
View File

@ -864,6 +864,9 @@ PROCESS_THREAD(tsch_pending_events_process, ev, data)
tsch_rx_process_pending();
tsch_tx_process_pending();
tsch_log_process_pending();
#ifdef TSCH_CALLBACK_SELECT_CHANNELS
TSCH_CALLBACK_SELECT_CHANNELS();
#endif
}
PROCESS_END();
}
@ -944,6 +947,8 @@ tsch_init(void)
#if TSCH_WITH_SIXTOP
sixtop_init();
#endif
tsch_stats_init();
}
/*---------------------------------------------------------------------------*/
/* Function send for TSCH-MAC, puts the packet in packetbuf in the MAC queue */

1
os/net/mac/tsch/tsch.h
View File

@ -60,6 +60,7 @@ frequency hopping for enhanced reliability.
#include "net/mac/tsch/tsch-packet.h"
#include "net/mac/tsch/tsch-security.h"
#include "net/mac/tsch/tsch-schedule.h"
#include "net/mac/tsch/tsch-stats.h"
#if UIP_CONF_IPV6_RPL
#include "net/mac/tsch/tsch-rpl.h"
#endif /* UIP_CONF_IPV6_RPL */