update doc and config for sync

orgua · Jan 15, 2024 · 56ccc73 · 56ccc73
1 parent a1e9068
commit 56ccc73
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Showing 2 changed files with 13 additions and 2 deletions.
diff --git a/deploy/roles/ptp_host/files/phc2sys@.service b/deploy/roles/ptp_host/files/phc2sys@.service
@@ -10,13 +10,18 @@ Before=time-sync.target
 Type=simple
 ExecStartPre=-/bin/sleep 5
 # ExecStart=/usr/sbin/phc2sys -w -s %I
-ExecStart=/usr/sbin/phc2sys -rr -w -s %I
+# ExecStart=/usr/sbin/phc2sys -rr -w -s %I
+ExecStart=/usr/sbin/phc2sys -r -w -s %I -E linreg
+# for client: -r -w -s %I -E linreg
+# for server: -a -rr -E linreg, TODO: put in ansible
+# for both:   -rr -w -s %I -E linreg
 # -q	do not print messages to syslog
 # -m 	print msgs to stdout
 # -a 	autoconfig
 # -rr 	sync realtime clock and also consider it as a time source
 # -w    wait for ptp4l
 # -s    main clock
+# -E    clock servo (pi|linreg) - linreg is superior
 RestartSec=5
 Restart=always
 StartLimitBurst=10

diff --git a/deploy/roles/ptp_host/files/ptp4l@.service b/deploy/roles/ptp_host/files/ptp4l@.service
@@ -8,9 +8,15 @@ After=sys-subsystem-net-devices-%i.device
 Type=simple
 ExecStartPre=/usr/sbin/ntpdate -b -s -u pool.ntp.org
 # ExecStart=/usr/sbin/ptp4l -f /etc/linuxptp/ptp4l.conf -i %I
-ExecStart=/usr/sbin/ptp4l -A -f /etc/linuxptp/ptp4l.conf -i %I
+ExecStart=/usr/sbin/ptp4l -A -H -f /etc/linuxptp/ptp4l.conf -i %I
 # -2 -> IEEE 802.3 Network Transport, TODO: seems to produce "sheep03 ptp4l[4062]: [2837.436] port 1: bad message"
 # -A -> Auto Delay Mechanism (E2E first, then maybe P2P)
+# -H -> use hardware timestamping
+# /etc/linuxptp/ptp4l.conf
+# slaveOnly     0/1     -> roles should be static
+# clock_servo   linreg/pi -> linreg should be superior
+
+
 RestartSec=5
 Restart=always
 StartLimitBurst=10