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In fact, these two are not tied closely to each other. The only requirements to GRO are to use it in the BH context and have some sane limits on the packet batches, e.g. NAPI has a limit of its budget (64/8/etc.). Move purely GRO fields into a new structure, &gro_node. Embed it into &napi_struct and adjust all the references. gro_node::cached_napi_id is effectively the same as napi_struct::napi_id, but to be used on GRO hotpath to mark skbs. napi_struct::napi_id is now a fully control path field. Three Ethernet drivers use napi_gro_flush() not really meant to be exported, so move it to <net/gro.h> and add that include there. napi_gro_receive() is used in more than 100 drivers, keep it in <linux/netdevice.h>. This does not make GRO ready to use outside of the NAPI context yet. Tested-by: Daniel Xu <dxu@dxuuu.xyz> Acked-by: Jakub Kicinski <kuba@kernel.org> Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com> Signed-off-by: Alexander Lobakin <aleksander.lobakin@intel.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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.