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PPE service code is a special code (0-255) that is defined by PPE for PPE's packet processing stages, as per the network functions required for the packet. For packet being sent out by ARM cores on Ethernet ports, The service code 1 is used as the default service code. This service code is used to bypass most of packet processing stages of the PPE before the packet transmitted out PPE port, since the software network stack has already processed the packet. Signed-off-by: Luo Jie <quic_luoj@quicinc.com> Link: https://patch.msgid.link/20250818-qcom_ipq_ppe-v8-8-1d4ff641fce9@quicinc.com Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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 reStructuredText 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.