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| Filename | Latest commit message | Latest commit date |
|---|---|---|
cb7db35641
Currently we bump the Rx tail and release/give buffers to hardware every 16 descriptors. This causes us to bump Rx tail up to 4 times per napi_poll call. Also we are always bumping tail on an odd index and this is a problem because hardware ignores the lower 3 bits in the QRX_TAIL register. This is making it so hardware sees tail bumps only every 8 descriptors. Instead lets only bump Rx tail once per napi_poll if the value aligns with hardware's expectations of the lower 3 bits being cleared. Also only release/give Rx buffers once per napi_poll call. Signed-off-by: Brett Creeley <brett.creeley@intel.com> Tested-by: Andrew Bowers <andrewx.bowers@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> |
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| 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.