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Revert "Introduce PHY listing and link_topology tracking"

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This reverts commit 32bb4515e3.
This reverts commit d078d48063.
This reverts commit fcc4b105ca.
This reverts commit 345237dbc1.
This reverts commit 7db69ec9cf.
This reverts commit 95132a018f.
This reverts commit 63d5eaf35a.
This reverts commit c29451aefc.
This reverts commit 2ab0edb505.
This reverts commit dedd702a35.
This reverts commit 034fcc2103.
This reverts commit 9c5625f559.
This reverts commit 02018c544e.

Looks like we need more time for reviews, and incremental
changes will be hard to make sense of. So revert.

Link: https://lore.kernel.org/all/ZZP6FV5sXEf+xd58@shell.armlinux.org.uk/
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski
2024-01-04 16:04:35 -08:00
parent 172b3fccf5
commit fe1eb24bd5
30 changed files with 35 additions and 912 deletions
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51
Documentation/networking/ethtool-netlink.rst
View File

@@ -57,7 +57,6 @@ Structure of this header is
``ETHTOOL_A_HEADER_DEV_INDEX`` u32 device ifindex
``ETHTOOL_A_HEADER_DEV_NAME`` string device name
``ETHTOOL_A_HEADER_FLAGS`` u32 flags common for all requests
``ETHTOOL_A_HEADER_PHY_INDEX`` u32 phy device index
============================== ====== =============================
``ETHTOOL_A_HEADER_DEV_INDEX`` and ``ETHTOOL_A_HEADER_DEV_NAME`` identify the
@@ -82,12 +81,6 @@ the behaviour is backward compatible, i.e. requests from old clients not aware
of the flag should be interpreted the way the client expects. A client must
not set flags it does not understand.
``ETHTOOL_A_HEADER_PHY_INDEX`` identify the ethernet PHY the message relates to.
As there are numerous commands that are related to PHY configuration, and because
we can have more than one PHY on the link, the PHY index can be passed in the
request for the commands that needs it. It is however not mandatory, and if it
is not passed for commands that target a PHY, the net_device.phydev pointer
is used, as a fallback that keeps the legacy behaviour.
Bit sets
========
@@ -2011,49 +2004,6 @@ The attributes are propagated to the driver through the following structure:
.. kernel-doc:: include/linux/ethtool.h
:identifiers: ethtool_mm_cfg
PHY_GET
=======
Retrieve information about a given Ethernet PHY sitting on the link. As there
can be more than one PHY, the DUMP operation can be used to list the PHYs
present on a given interface, by passing an interface index or name in
the dump request
Request contents:
==================================== ====== ==========================
``ETHTOOL_A_PHY_HEADER`` nested request header
==================================== ====== ==========================
Kernel response contents:
===================================== ====== ==========================
``ETHTOOL_A_PHY_HEADER`` nested request header
``ETHTOOL_A_PHY_INDEX`` u32 the phy's unique index, that can
be used for phy-specific requests
``ETHTOOL_A_PHY_DRVNAME`` string the phy driver name
``ETHTOOL_A_PHY_NAME`` string the phy device name
``ETHTOOL_A_PHY_UPSTREAM_TYPE`` u32 the type of device this phy is
connected to
``ETHTOOL_A_PHY_UPSTREAM_PHY`` nested if the phy is connected to another
phy, this nest contains info on
that connection
``ETHTOOL_A_PHY_DOWNSTREAM_SFP_NAME`` string if the phy controls an sfp bus,
the name of the sfp bus
``ETHTOOL_A_PHY_ID`` u32 the phy id if the phy is C22
===================================== ====== ==========================
When ``ETHTOOL_A_PHY_UPSTREAM_TYPE`` is PHY_UPSTREAM_PHY, the PHY's parent is
another PHY. Information on the parent PHY will be set in the
``ETHTOOL_A_PHY_UPSTREAM_PHY`` nest, which has the following structure :
=================================== ====== ==========================
``ETHTOOL_A_PHY_UPSTREAM_INDEX`` u32 the PHY index of the upstream PHY
``ETHTOOL_A_PHY_UPSTREAM_SFP_NAME`` string if this PHY is connected to it's
parent PHY through an SFP bus, the
name of this sfp bus
=================================== ====== ==========================
Request translation
===================
@@ -2160,5 +2110,4 @@ are netlink only.
n/a ``ETHTOOL_MSG_PLCA_GET_STATUS``
n/a ``ETHTOOL_MSG_MM_GET``
n/a ``ETHTOOL_MSG_MM_SET``
n/a ``ETHTOOL_MSG_PHY_GET``
=================================== =====================================