This adds config option to specify static roles for master and slave
in the Best Master Clock Algorithm. This is the case for Automotive
Profile where networks are mostly static and role for each device is
known in advance.
masterOnly and slaveOnly will be used to determine the roles for the
devices. Since masterOnly is a per-port config and slaveOnly is a global
config option, role assignment will be slightly odd in case of bridges.
If slaveOnly is set to 1, all the ports will be in slave roles except
for the ones where masterOnly is set to 1. These ports will assume the
master role.
Two new FSMs which will be used for master and slave roles for this
config option have also been added.
Signed-off-by: Vedang Patel <vedang.patel@intel.com>
If set to 'true', this unconditionally sets the asCapable variable. The
usual checks will be applied to asCapable if it is set to 'auto'. The
default value is 'auto'.
This config option is needed by the Automotive Profile. The master will
be able to send out Sync Message as soon as the daemon is started.
Signed-off-by: Vedang Patel <vedang.patel@intel.com>
This patch adds new code that handles unicast service contracts,
sending messages according the negotiated schedule.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
This patch adds configuration file support for a table of unicast
masters. Each table lives in its own section and has a unique,
positive numerical ID. Entries in the table are a pair of transport
type and protocol address.
Each port may specify a table id to be used for unicast negotiation.
Tables may not be shared between ports, but nothing prevents table
entries from appearing in more than table.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Consistenly use the pid_eq() and cid_eq() helper functions. Move the
functions into utils.h (making them inline functions) because they are
used in multiple source files.
Signed-off-by: Michael Walle <michael@walle.cc>
The E2E TC forwards Announce, Delay_Req, Delay_Resp, Management,
Signaling, and Sync messages, and drops P2P Delay messages.
This implementation tracks the GM using the BMCA in order
to syntonize (or possibly even synchronize) with it.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
The P2P TC forwards Announce, Management, Signaling, and Sync
messages, consumes P2P Delay messages, and drops E2E Delay messages.
This implementation tracks the GM using the BMCA in order
to syntonize (or possibly even synchronize) with it.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
This patch adds code that sends an event messages received on one port out
all the other ports and calculates the residence time. The correction,
ingress port, and the original message are remembered in a TC transmit
descriptor. These descriptors are recycled in a memory pool in a similar
way to the message buffers.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
The transparent clock code will want to set qualification timeouts and
perform end to end delay measurements. This patch exposes the needed
methods.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
When masterOnly is true, the port always returns NULL when computing
its best foreign master. As a result, the port will never enter the
SLAVE state, and the clock will ignore Announce messages received on
that port.
This attribute is specifically called out in G.8275.1 and G.8275.2,
and it is implied by the "master only" mode G.8265.1. In addition,
this option will probably appear in the next revision of IEEE 1588.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
There is no need to keep two copies of the data set comparison
function. This patch adds a method that allows the port code to
obtain the function from the clock code.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
This patch makes a number of subroutines into global functions in order
to share code with the TC implementations to come.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
This patch places the internal port data structure into a common header
for use by the original BC and the new TC code.
Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Vedang Patel
Richard Cochran
Michael Walle