7421e74aca
Clear out saved time stamps after setting the clock.
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When we create a discontinuity in the clock time, we must avoid mixing
local time stamps from before and after the jump.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-03-11 10:58:24 +01:00
2fcac204de
Do not calculate the path delay without valid sync time stamps.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-03-11 10:52:01 +01:00
e38488ae48
Add time value operations to clear to zero and test for zero.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-03-11 10:46:45 +01:00
5f0c034494
Throw an error at the port level on missing transmit time stamps.
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We always wait for the transmit time stamp after sending an event message.
Thus a missing time stamp is clearly a fault, even if the hardware can
only handle one time stamp at a time.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-03-11 10:04:42 +01:00
51162c01af
Warn loudly whenever event messages are missing time stamps.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-03-11 09:53:28 +01:00
a9e88a0a49
Fix segfault after missing transmit time stamp.
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If the networking stack fails to provide a transmit time stamp, then we
might feed uninitialized stack data to the CMSG(3) macros. This can result
in a segfault or other badness.
The fix is to simply clear the control buffer in advance.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-03-11 09:45:23 +01:00
150da0cba9
Remove silly and incorrect error message.
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Commit 32133050
2012-03-04 11:33:22 +01:00
eb5b7b1e60
Verbosely identify the port and message after network errors.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-03-04 08:36:37 +01:00
321330501f
Be more verbose about errors on the receive path.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-03-04 08:23:40 +01:00
6daff667c5
Initialize the time properties data set.
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We can reuse the same function that sets the data sets in case of
becoming grand master.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-02-26 18:03:16 +01:00
d6ce3fbb3d
Fix compilation for uclinux toolchain lacking <sys/timerfd.h>
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-02-19 18:26:54 +01:00
4d0b2e5001
Clean up all of the binaries for the 'distclean' target.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-02-19 18:26:38 +01:00
4b10792002
Add a utility program to set driver level time stamping policy.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-24 19:22:13 +01:00
af3cbb5fbd
Add a tool to synchronize the system time from a PTP hardware clock.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-24 19:12:57 +01:00
43bd313eb1
Go ahead and use a negative path delay estimate.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-21 15:24:15 +01:00
6d73cea86a
Implement timeouts with log seconds less than zero.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-09 10:04:43 +01:00
c0ebf12f79
Add command line options to control the logging destination.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-09 10:04:43 +01:00
86ddff4a0a
Print messages to the syslog by default.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-09 10:04:43 +01:00
222c9bb62b
Fix the port finite state machine.
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The state machine needs to know whether a new master has just been
selected in order to choose between the slave and uncalibrated states.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:56 +01:00
c2fad7bd51
Fix the BMC state decision algorithm.
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We failed to make the distinction between plain old "better" and
"better by topology," but the BMC algorithm really counts on this.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:56 +01:00
807ec32c96
Fix wrong result from the best master clock algorithm.
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The BMC should never return 'faulty', and I don't know what I was thinking
here, so let's just fix it.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:56 +01:00
335100c1a6
Differentiate the BMC related logging from the synchronization logging.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:56 +01:00
a442a928f8
Fix typo in the initial priority field of the parent data set.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:56 +01:00
ba6cf8b767
uClinux: provide missing system calls.
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The timerfd calls are missing from Sourcery CodeBench Lite 2011.09-23.
We can remove this code once these calls are properly integrated into a
current tool chain.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:56 +01:00
59163df8b1
Make use of the configuration file for the port data set.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
1092c4237b
Make use of the configuration file for the default data set.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
ec5e783e84
Add code to read a configuration file.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
32ee558ef8
Add a command line option to set the message level.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
f135133a88
Print the synchronization statistics at the information level.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
0536aa7413
Issue a warning when the path delay turns out negative.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
e47549e73f
Ignore messages from ourselves and from the wrong domain.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
851675833a
Do not print debug messages by default.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
95185673f5
Fix message leak in the port event handler.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
50b82c200d
Do not treat signaling and management messages as errors.
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Instead we just ignore them for now.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
a736b0c2ff
Make the slave only mode a non-default option.
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Now that we have the master code in place, there is no longer any need
to restrict ourselves.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
e2c02e49c7
Implement the master sync timer and message.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:55 +01:00
39f5b2c449
Fix delay response message format.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
e96d26f13f
Group the sequence numbers together in one structure.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
72703ba36a
Implement the master announce timer and message.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
7dbdf2985c
Provide methods to obtain a clock's parent and time properties data sets.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
da17f75359
Implement the port master qualification timer.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
62afef45db
Clear all timers when changing port state.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
3481c99c70
Add an access method for a clock's currentDS.stepsRemoved.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
b76c4e108f
Introduce an event recommending the grand master state.
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We already have a grand master state. Adding this event will simplify the
overall logic, since it will avoid the silly requirement to set the
qualification timeout to zero when entering the grand master state.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
10753faccf
Implement the synchronization events.
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This will allow a port to get from the uncalibrated into the slave state.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
347b42b7d5
udp: Use the bind to device socket option.
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Without this Linux specific option, multicast packets arrive on one
interface are delivered by the kernel to all others.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
95d5c36c0f
udp: turn off multicast loop back.
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This option is on by default, but we don't want or need it.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:54 +01:00
5555a2f029
udp: Use the IP_ADD_MEMBERSHIP socket option.
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For some reason, MCAST_JOIN_GROUP is not working under uClinux. We can
just stick with the more traditional method.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-01-07 08:07:53 +01:00
447d4d442c
udp: bring a warning or error if the driver changes our hwtstamp options.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-12-18 09:35:41 +01:00
b0d547cac4
udp: use the message logging facility instead of stdio.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2011-12-18 08:21:47 +01:00
Richard Cochran