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Author SHA1 Message Date
Richard Cochran
5dbca8a6cd Add a header defining the Ethernet header and MAC addresses. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-03-18 09:31:21 +01:00
Richard Cochran
7d54d444f5 Leave some headroom in the message buffers. 
This room will be used by the Layer 2 protocols.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-03-18 09:31:21 +01:00
Richard Cochran
aa142c5240 Improve error reporting on receive path. 
In some error cases, no message is logged. Now we always complain loudly
when an error occurs.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-03-18 09:31:21 +01:00
Richard Cochran
9d4d68e667 Add missing release method to the UDPv4 transport. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-03-17 17:30:21 +01:00
Richard Cochran
319aae1403 Move some sharable socket code into its own source file. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-03-17 17:30:21 +01:00
Richard Cochran
9c9dc35f13 Clean up dynamic fields when closing a port. 
In the course of development we added more and more allocations into the
port code without freeing them on close. We do not yet call the close
function, so there was never an issue. Once we start to reset the ports,
to clear faults for example, then we will need this.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-03-13 09:11:01 +01:00
Richard Cochran
29463cd306 Make the transport layer more opaque. 
Although the UDP/IPv4 layer does not need any state per instance (other
than the two file descriptors), the raw Ethernet layer will need this.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-03-13 08:28:37 +01:00
Richard Cochran
7421e74aca Clear out saved time stamps after setting the clock. 
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
Richard Cochran
2fcac204de Do not calculate the path delay without valid sync time stamps. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-03-11 10:52:01 +01:00
Richard Cochran
e38488ae48 Add time value operations to clear to zero and test for zero. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-03-11 10:46:45 +01:00
Richard Cochran
5f0c034494 Throw an error at the port level on missing transmit time stamps. 
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
Richard Cochran
51162c01af Warn loudly whenever event messages are missing time stamps. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-03-11 09:53:28 +01:00
Richard Cochran
a9e88a0a49 Fix segfault after missing transmit time stamp. 
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
Richard Cochran
150da0cba9 Remove silly and incorrect error message. 
Commit 32133050 introduced a bug that gives a bogus error message on
every 'general' (non-event) PTP packet. If we want to catch missing
time stamps, then it has to occur at the port level.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-03-04 11:33:22 +01:00
Richard Cochran
eb5b7b1e60 Verbosely identify the port and message after network errors. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-03-04 08:36:37 +01:00
Richard Cochran
321330501f Be more verbose about errors on the receive path. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-03-04 08:23:40 +01:00
Richard Cochran
6daff667c5 Initialize the time properties data set. 
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
Richard Cochran
d6ce3fbb3d Fix compilation for uclinux toolchain lacking <sys/timerfd.h> 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-02-19 18:26:54 +01:00
Richard Cochran
4d0b2e5001 Clean up all of the binaries for the 'distclean' target. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-02-19 18:26:38 +01:00
Richard Cochran
4b10792002 Add a utility program to set driver level time stamping policy. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-24 19:22:13 +01:00
Richard Cochran
af3cbb5fbd Add a tool to synchronize the system time from a PTP hardware clock. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-24 19:12:57 +01:00
Richard Cochran
43bd313eb1 Go ahead and use a negative path delay estimate. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-21 15:24:15 +01:00
Richard Cochran
6d73cea86a Implement timeouts with log seconds less than zero. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-09 10:04:43 +01:00
Richard Cochran
c0ebf12f79 Add command line options to control the logging destination. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-09 10:04:43 +01:00
Richard Cochran
86ddff4a0a Print messages to the syslog by default. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-09 10:04:43 +01:00
Richard Cochran
222c9bb62b Fix the port finite state machine. 
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
Richard Cochran
c2fad7bd51 Fix the BMC state decision algorithm. 
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
Richard Cochran
807ec32c96 Fix wrong result from the best master clock algorithm. 
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
Richard Cochran
335100c1a6 Differentiate the BMC related logging from the synchronization logging. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:56 +01:00
Richard Cochran
a442a928f8 Fix typo in the initial priority field of the parent data set. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:56 +01:00
Richard Cochran
ba6cf8b767 uClinux: provide missing system calls. 
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
Richard Cochran
59163df8b1 Make use of the configuration file for the port data set. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
1092c4237b Make use of the configuration file for the default data set. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
ec5e783e84 Add code to read a configuration file. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
32ee558ef8 Add a command line option to set the message level. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
f135133a88 Print the synchronization statistics at the information level. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
0536aa7413 Issue a warning when the path delay turns out negative. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
e47549e73f Ignore messages from ourselves and from the wrong domain. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
851675833a Do not print debug messages by default. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
95185673f5 Fix message leak in the port event handler. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
50b82c200d Do not treat signaling and management messages as errors. 
Instead we just ignore them for now.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
a736b0c2ff Make the slave only mode a non-default option. 
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
Richard Cochran
e2c02e49c7 Implement the master sync timer and message. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:55 +01:00
Richard Cochran
39f5b2c449 Fix delay response message format. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:54 +01:00
Richard Cochran
e96d26f13f Group the sequence numbers together in one structure. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:54 +01:00
Richard Cochran
72703ba36a Implement the master announce timer and message. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:54 +01:00
Richard Cochran
7dbdf2985c Provide methods to obtain a clock's parent and time properties data sets. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:54 +01:00
Richard Cochran
da17f75359 Implement the port master qualification timer. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:54 +01:00
Richard Cochran
62afef45db Clear all timers when changing port state. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:54 +01:00
Richard Cochran
3481c99c70 Add an access method for a clock's currentDS.stepsRemoved. 
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
 2012-01-07 08:07:54 +01:00