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2d91f0803b
Spectrum ASICs have a configurable limit on how deep into the packet they parse. By default, the limit is 96 bytes. There are several cases where this parsing depth is not enough and there is a need to increase it. Currently, increasing parsing depth is maintained as part of VxLAN module, because the MPRS register which configures parsing depth also configures UDP destination port number used for VxLAN encapsulation and decapsulation. Add an API for increasing parsing depth as part of spectrum.c code, so that it will be possible to use it from other modules. In addition, add an API for setting UDP destination port and protect it using a dedicated lock for saving parsing configurations. The lock is needed as not all the callers hold RTNL lock. Maintain a counter for increased parsing depth consumers. For first consumer subscription, increase the parsing depth and for last consumer unsubscription, set parsing depth to default value. 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> |
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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.