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52d45575ec
Unresolved nexthops are currently written to the adjacency table with a discard action. Packets hitting such entries are trapped to the CPU via the 'DISCARD_ROUTER3' trap which can be enabled or disabled on demand, but is always enabled in order to ensure the kernel can resolve the unresolved neighbours. This trap will be needed for blackhole nexthops support. Therefore, move unresolved nexthops to explicitly program the adjacency entries with a trap action and a different trap identifier, 'RTR_EGRESS0'. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Jiri Pirko <jiri@nvidia.com> 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 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.