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>From FW/HW perspective, 2 port topology in E825C devices requires merging of 2 port mapping internally and breakout mapping externally. As a consequence, it requires different port numbering from PTP code perspective. For that topology, pf_id can not be used to index PTP ports. Even if the 2nd port is identified as port with pf_id = 1, all PHY operations need to be performed as it was port 2. Thus, special mapping is needed for the 2nd port. This change adds detection of 2x50G topology and applies 'custom' mapping on the 2nd port. Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.com> Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com> Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Link: https://lore.kernel.org/r/20240528-next-2024-05-28-ptp-refactors-v1-11-c082739bb6f6@intel.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.