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3b08863469
We currently use the mask 0xf for writing and reading b53_entry::port,
but this is only correct for unicast ARL entries. Multicast ARL entries
use a bitmask, and 0xf is not enough space for ports > 3, which includes
the CPU port.
So extend the mask accordingly to also fit port 4 (bit 4) and MII (bit
5). According to the datasheet the multicast port mask is [60:48],
making it 12 bit wide, but bits 60-55 are reserved anyway, and collide
with the priority field at [60:59], so I am not sure if this is valid.
Therefore leave it at the actual used range, [53:48].
The ARL search result register differs a bit, and there the mask is only
[52:48], so only spanning the user ports. The MII port bit is
contained in the Search Result Extension register. So create a separate
search result parse function that properly handles this.
Fixes:
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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.