8f5bd0edda
Guard against divide by zero.
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If a buggy driver or hardware delivers bogus time stamps, then we might
crash with a divide by zero exception.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-09-04 08:16:53 +02:00
35170cf6e4
Introduce a macro for the constant 2^41.
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We are going to need this more than once for working with the
cumulativeScaledRateOffset fields.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-09-04 07:37:10 +02:00
8cc3433b8b
Add an implementation specific management code.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-09-02 14:40:28 +02:00
5ca99377b6
Be tolerant of wrong a OUI in the follow up information.
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Certain AVB bridges send their own OUI instead of the offical one.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-09-02 14:40:27 +02:00
8a4b2ab9b8
Remove unnecessary wait state from frequency estimator.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-09-02 14:40:27 +02:00
843661dfa2
Calculate the master/local rate ratio in two ways.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-09-02 14:40:07 +02:00
e5edeacb9a
Extract the follow up info and pass it to the clock.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-09-02 14:40:07 +02:00
94dd186cdf
Add a clock method to receive the follow up information TLV.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-09-02 14:40:07 +02:00
f38338827b
Provide the clock with the estimated neighbor rate ratio.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-09-02 14:40:07 +02:00
5e40b5ec01
Estimate the neighbor rate ratio from a slaved port.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-09-02 14:40:07 +02:00
f86997185e
Give the frequency estimation interval to the port as well.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-09-02 14:40:07 +02:00
c06f3adc84
Differentiate between the E2E and P2P delay timeout intervals.
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We have one timer used for both delay request mechanisms, and we ought
to set the message interval accordingly.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-09-02 14:40:07 +02:00
ace0d71a80
Adjust the peer delay request message interval field.
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IEEE 802.1AS-2011 specifies using the current logMinPdelayReqInterval
for this field.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-09-02 14:40:06 +02:00
db36fb52ca
Reset the master/local frequency estimator when changing masters.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-09-02 14:40:06 +02:00
1bb8ebbdc5
Invert the frequency ratio estimation.
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In 802.1AS-2011 the ratio is defined as master/local, so we should follow
suit.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-31 17:28:14 +02:00
829c785414
Rework the frequency ratio estimator to use the tmv functions.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-31 17:28:14 +02:00
95598b4fde
Provide a conversion function from tmv to double.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-31 17:28:14 +02:00
845e947bcb
Correct a comment about the frequency ratio estimation.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-31 17:28:14 +02:00
1925f07b3f
Fix copy-pasto in config file parsing of the logging level.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-31 17:28:14 +02:00
6330764538
phc2sys: add options for number of PHC readings and update rate
2012-08-31 17:14:55 +02:00
bf21c7c6a9
phc2sys: improve servo start up
2012-08-31 17:14:55 +02:00
41ffd8dfb8
Add an acknowledgment in the readme of the hardware donors.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-31 16:55:45 +02:00
28ac1cb1b1
Bring the readme up to date.
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- all of the original goals have been implemented
- add gPTP to the list of supported features
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-30 14:55:35 +02:00
d42914c335
Improve stability of PHC reading in phc2sys.
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Make five PHC readings in sequence and pick the quickest one.
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
2012-08-30 14:48:32 +02:00
2fcf5cbb4f
Add non-PPS mode to phc2sys.
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As some PHC hardware/drivers don't provide PPS, it may be useful to keep the
system clock synchronized to PHC via clock_gettime(). While the precision
of the clock is only in microsecond range, the error seems to be quite stable.
The -d parameter now can be omitted if -s is provided.
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
2012-08-30 14:47:01 +02:00
be87b05f52
Revert "Add non-PPS mode to phc2sys."
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This reverts commit 998093b6f7
2012-08-30 14:45:50 +02:00
0a5caa8476
Revert "Improve stability of PHC reading in phc2sys."
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This reverts commit f08d264e1d
2012-08-30 14:44:46 +02:00
f08d264e1d
Improve stability of PHC reading in phc2sys.
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Make five PHC readings in sequence and pick the quickest one.
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
2012-08-29 15:29:56 +02:00
998093b6f7
Add non-PPS mode to phc2sys.
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As some PHC hardware/drivers don't provide PPS, it may be useful to keep the
system clock synchronized to PHC via clock_gettime(). While the precision
of the clock is only in microsecond range, the error seems to be quite stable.
The -d parameter now can be omitted if -s is provided.
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
2012-08-29 15:29:43 +02:00
afd2a50b5b
pmc: add a simple interactive help command.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-28 19:16:08 +02:00
81648e81ed
Always set the clock class to 255 when slave only mode is configured.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-28 18:47:45 +02:00
852d587fd3
Drop the reference to best when freeing the foreign masters.
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This fixes the following issue reported by valgrind, which occurs
after a port disable/initialize subsequent to having entered slave
mode.
==10651== Invalid read of size 4
==10651== at 0x804E6E2: fc_clear (port.c:175)
==10651== by 0x805132F: port_event (port.c:1352)
==10651== by 0x804B383: clock_poll (clock.c:597)
==10651== by 0x80498AE: main (ptp4l.c:278)
==10651== Address 0x41cba60 is 16 bytes inside a block of size 60 free'd
==10651== at 0x4023B6A: free (vg_replace_malloc.c:366)
==10651== by 0x804EB09: free_foreign_masters (port.c:287)
==10651== by 0x804FB14: port_disable (port.c:722)
==10651== by 0x8051228: port_dispatch (port.c:1298)
==10651== by 0x804B3C6: clock_poll (clock.c:602)
==10651== by 0x80498AE: main (ptp4l.c:278)
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-28 07:51:04 +02:00
2040933d74
Configure logging facility sooner.
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Error messages from initialization were missing.
Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com>
2012-08-27 21:20:08 +02:00
afbec38d6e
Release all resources when quitting the main loop.
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This will allow running under valgrind to detect memory leaks
and the like.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-27 21:11:14 +02:00
40dc2e13ef
Make the clock release method a public function.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-27 21:09:59 +02:00
577d34facf
Provide a method to release the message cache.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-27 21:09:10 +02:00
889c707ba1
Break out of the main loop on Control-C.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-27 21:07:38 +02:00
2b819b6b76
uds: fix bug in file descriptor array opening.
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By not touching the event descriptor, uds is leaving the value as zero,
resulting in polling on stdin.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-27 21:05:34 +02:00
3936316468
Correct the TAI-UTC offset when it is reasonable to do so.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-27 18:57:43 +02:00
1bfb6fd217
Warn if the master's time properties are suspicious.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-26 20:36:43 +02:00
d377229ab4
Update the hard coded TAI-UTC offset.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-26 18:48:54 +02:00
ce745572b4
Use zero for the UDS port number.
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Using 0xffff looks dumb in the log and in the pmc output.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-26 15:09:15 +02:00
420d48ce02
Use the ingress port identity for clock management replies.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-26 14:39:57 +02:00
9da511d6f6
Provide a method to obtain a port's identity.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-26 14:39:57 +02:00
b9c4fbc11d
Clean up the tlv and pmc include directives.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-26 14:39:57 +02:00
529206112d
Move shared layer 2 global declarations into an appropriate header file.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-26 14:39:57 +02:00
e1f77422ec
Move shared PI global variable into the proper module.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-26 14:39:57 +02:00
8f6d2549b1
pmc: look for POLLHUP in order to work with piped input and redirection.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-26 14:39:57 +02:00
9b2a6d543c
pmc: add command line options to control messaging.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-26 14:39:57 +02:00
9fc5f31c8b
pmc: provide a reasonable default path when using UDS.
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Signed-off-by: Richard Cochran <richardcochran@gmail.com>
2012-08-25 15:53:58 +02:00
Richard Cochran
Miroslav Lichvar