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The device supports forwarding entries such as routes and FDBs that perform tunnel (e.g., VXLAN, IP-in-IP) encapsulation or decapsulation. When the underlay is IPv6, these entries do not encode the 128 bit IPv6 address used for encapsulation / decapsulation. Instead, these entries encode a 24 bit pointer to an array called KVDL where the IPv6 address is stored. Currently, only IP-in-IP with IPv6 underlay is supported, but subsequent patches will add support for VxLAN with IPv6 underlay. To avoid duplicating the logic required to store and retrieve these IPv6 addresses, introduce a hash table that will store the mapping between IPv6 addresses and their KVDL index. Signed-off-by: Amit Cohen <amcohen@nvidia.com> Signed-off-by: Ido Schimmel <idosch@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.