[Linuxptp-devel] [PATCH v1 0/7] Support for Automotive Profile (Part II)

[Vedang P. <ved...@in...>]

This series is the continuation of the automotive series posted at [1].
Following are the main changes this series makes:
- Provide a mechanism to save the initial values of Sync and Announce
  intervals.
- Implement “Message Interval Request” support for linuxptp described as part
  of 10.5.4 in 802.1AS[2].
- Use the interval request mechanism for slave to request a change the interval
  of Sync messages to operLogSyncInterval. Signaling message will be sent to
  the master after the interval update timer expires. The timer is setup when
  the first Sync Message is received by slave. More information for this in
  sections 6.2.1.6, 6.2.3.1 and 6.2.4 of AVnu Automotive Profile[3].
- The timer expiration also sets the pdelay request interval to
  operPdelayReqInterval on slave. This adds functionality mentioned in Sections
  6.2.1.5 and 6.2.3.2.
- Add a flag to inhibit delay requests. This will be used by the master in the
  automotive network because master devices do not need to send pdelay request
  messages.

Thanks,
Vedang Patel

[1]- https://sourceforge.net/p/linuxptp/mailman/message/36431575/
[2]- IEEE 802.1AS Standard:
https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5741898&tag=1
[3]- Automotive Ethernet AVB Functional and Interoperability Specification -
http://avnu.org/wp-content/uploads/2014/05/
Automotive-Ethernet-AVB-Func-Interop-Spec-v1.5-Public.pdf

Vedang Patel (7):
  port: Make port_capable() accessible outside port.c
  port: Split port_signaling_construct() to support Interval Request
  port: Add logPdelayReqInterval.
  port: implement message interval request processing
  port: Add ignore_update_interval_req.
  port: Add interval update timer.
  port: Add inhibit_delay_req.

 config.c                      |   5 ++
 configs/automotive-master.cfg |   1 +
 configs/automotive-slave.cfg  |   4 ++
 configs/default.cfg           |   4 ++
 fd.h                          |   3 +-
 msg.h                         |   6 +++
 port.c                        |  55 ++++++++++++++++++--
 port_private.h                |  20 ++++++-
 port_signaling.c              | 118 +++++++++++++++++++++++++++++++++++++++++-
 ptp4l.8                       |  32 ++++++++++++
 tlv.h                         |  12 +++++
 unicast_client.c              |  14 ++---
 unicast_service.c             |   4 +-
 13 files changed, 261 insertions(+), 17 deletions(-)

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2.7.3