861584724c
The number of nexthop buckets in a resilient nexthop group never changes, so when the gateway address of a nexthop cannot be resolved, the nexthop buckets are programmed to trap packets to the CPU in order to trigger resolution. For example: # ip nexthop add id 1 via 198.51.100.1 dev swp3 # ip nexthop add id 10 group 1 type resilient buckets 32 # ip nexthop bucket get id 10 index 0 id 10 index 0 idle_time 1.44 nhid 1 trap Where 198.51.100.1 is a made-up IP. Test that in this case packets are indeed trapped to the CPU via the unresolved neigh trap. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Petr Machata <petrm@nvidia.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.