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net: ethtool: Add a command to list available time stamping layers

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Introduce a new netlink message that lists all available time stamping
layers on a given interface.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Kory Maincent
2023-11-14 12:28:38 +01:00
committed by David S. Miller
parent bb8645b00c
commit d905f9c753
5 changed files with 121 additions and 0 deletions
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23
Documentation/networking/ethtool-netlink.rst
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@@ -226,6 +226,7 @@ Userspace to kernel:
``ETHTOOL_MSG_MM_GET`` get MAC merge layer state
``ETHTOOL_MSG_MM_SET`` set MAC merge layer parameters
``ETHTOOL_MSG_TS_GET`` get current timestamping
``ETHTOOL_MSG_TS_LIST_GET`` list available timestampings
===================================== =================================
Kernel to userspace:
@@ -270,6 +271,7 @@ Kernel to userspace:
``ETHTOOL_MSG_RSS_GET_REPLY`` RSS settings
``ETHTOOL_MSG_MM_GET_REPLY`` MAC merge layer status
``ETHTOOL_MSG_TS_GET_REPLY`` current timestamping
``ETHTOOL_MSG_TS_LIST_GET_REPLY`` available timestampings
======================================== =================================
``GET`` requests are sent by userspace applications to retrieve device
@@ -2016,6 +2018,26 @@ Kernel response contents:
This command get the current timestamp layer.
TS_LIST_GET
===========
Get the list of available timestampings.
Request contents:
================================= ====== ====================
``ETHTOOL_A_TS_HEADER`` nested request header
================================= ====== ====================
Kernel response contents:
=========================== ====== ==============================
``ETHTOOL_A_TS_HEADER`` nested reply header
``ETHTOOL_A_TS_LIST_LAYER`` binary available timestampings
=========================== ====== ==============================
This command lists all the possible timestamp layer available.
Request translation
===================
@@ -2123,4 +2145,5 @@ are netlink only.
n/a ``ETHTOOL_MSG_MM_GET``
n/a ``ETHTOOL_MSG_MM_SET``
n/a ``ETHTOOL_MSG_TS_GET``
n/a ``ETHTOOL_MSG_TS_LIST_GET``
=================================== =====================================