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Instead of reading these values from the reference manual and writing them down into the driver, it appears that the hardware gives us the option of detecting them dynamically. The number of frame references corresponds to what the reference manual notes, however it seems that the frame buffers are reported as slightly less than the books would indicate. On VSC9959 (Felix), the books say it should have 128KB of packet buffer, but the registers indicate only 129840 bytes (126.79 KB). Also, the unit of measurement for FREECNT from the documentation of all these devices is incorrect (taken from an older generation). This was confirmed by Younes Leroul from Microchip support. Not having anything better to do with these values at the moment* (this will change soon), let's just print them. *The frame buffer size is, in fact, used to calculate the tail dropping watermarks. Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org> |
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| init | ||
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| kernel | ||
| lib | ||
| LICENSES | ||
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| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
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| Makefile | ||
| README | ||
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 Restructured Text 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.