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ad97e72f1c
Kernel and firmware communicates via scratch register which is
64 bit in size.
[MODE_ID PORT AUTONEG DUPLEX SPEED CMD_ID OWNERSHIP ]
63-22 21-14 13 12 11-8 7-2 1-0
The existing MODE_ID bitmap can only support up to 42 modes.
To resolve the issue, the unused port field is modified as below
uint64_t reserved2:6;
uint64_t mode_group_idx:2;
'mode_group_idx' categorize the mode ID range to accommodate more modes.
To specify mode ID range of 0 - 41, this field will be 0.
To specify mode ID range of 42 - 83, this field will be 1.
mode ID will be still mentioned as 1 << (0 - 41). But the mode_group_idx
decides the actual mode range
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Link: https://patch.msgid.link/20250625092107.9746-3-hkelam@marvell.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.