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eea9e3a40d
Paolo Abeni says: ==================== net/mlx5: use indirect call wrappers The mlx5_core driver uses several indirect calls in fast-path, some of them are invoked on each ingress packet, even for the XDP-only traffic. This series leverage the indirect call wrappers infrastructure the avoid the expansive RETPOLINE overhead for 2 indirect calls in fast-path. Each call is addressed on a different patch, plus we need to introduce a couple of additional helpers to cope with the higher number of possible direct-call alternatives. v2 -> v3: - do not add more INDIRECT_CALL_* macros - use only the direct calls always available regardless of the mlx5 build options in the last patch v1 -> v2: - update the direct call list and use a macro to define it, as per Saeed suggestion. An intermediated additional macro is needed to allow arg list expansion - patch 2/3 is unchanged, as the generated code looks better this way than with possible alternative (dropping BP hits) ==================== Signed-off-by: David S. Miller <davem@davemloft.net> |
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| README | ||
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.