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73b7123de0
Driver specific metadata data for XDP-hints kfuncs are propagated via tail extending the struct xdp_buff with a locally scoped driver struct. Zero-Copy AF_XDP/XSK does similar tricks via struct xdp_buff_xsk. This xdp_buff_xsk struct contains a CB area (24 bytes) that can be used for extending the locally scoped driver into. The XSK_CHECK_PRIV_TYPE define catch size violations build time. The changes needed for AF_XDP zero-copy in igc_clean_rx_irq_zc() is done in next patch, because the member rx_desc isn't available at this point. Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Song Yoong Siang <yoong.siang.song@intel.com> Link: https://lore.kernel.org/bpf/168182464779.616355.3761989884165609387.stgit@firesoul
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.