a29b8eb6e5
Handle Rx packets with basic csum and Rx hash offloads. NIC writes back to the completion ring a head buffer descriptor (data buffer allocated from header pages), variable number of payload descriptors (data buffers in payload pages), an optional metadata descriptor (type 2) and finally the primary metadata descriptor (type 3). This format makes scatter support fairly easy - start gathering the pages when we see head page, gather until we see the primary metadata descriptor, do the processing. Use XDP infra to collect the packet fragments as we traverse the descriptors. XDP itself is not supported yet, but it will be soon. Signed-off-by: Alexander Duyck <alexanderduyck@fb.com> Link: https://patch.msgid.link/172079942839.1778861.10509071985738726125.stgit@ahduyck-xeon-server.home.arpa 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.