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Steen Hegelund says: ==================== Add support for TC flower templates in Sparx5 This adds support for the TC template mechanism in the Sparx5 flower filter implementation. Templates are as such handled by the TC framework, but when a template is created (using a chain id) there are by definition no filters on this chain (an error will be returned if there are any). If the templates chain id is one that is represented by a VCAP lookup, then when the template is created, we know that it is safe to use the keys provided in the template to change the keyset configuration for the (port, lookup) combination, if this is needed to improve the match on the template. The original port keyset configuration is captured in the template state information which is kept per port, so that when the template is deleted the port keyset configuration can be restored to its previous setting. The template also provides the protocol parameter which is the basic information that is used to find out which port keyset configuration needs to be changed. The VCAPs and lookups are slightly different when it comes to which keys, keysets and protocol are supported and used for selection, so in some cases a bit of tweaking is needed to find a useful match. This is done by e.g. removing a key that prevents the best matching keyset from being selected. The debugfs output that is provided for a port allows inspection of the currently used keyset in each of the VCAPs lookups. So when a template has been created the debugfs output allows you to verify if the keyset configuration has been changed successfully. ==================== 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.