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The service parsing logic is used to parse the configuration string provided by the user using the attribute qat/cfg_services in sysfs. The logic relies on hard-coded strings. For example, the service "sym;asym" is also replicated as "asym;sym". This makes the addition of new services or service combinations complex as it requires the addition of new hard-coded strings for all possible combinations. This commit addresses this issue by: * reducing the number of internal service strings to only the basic service representations. * modifying the service parsing logic to analyze the service string token by token instead of comparing a whole string with patterns. * introducing the concept of a service mask where each service is represented by a single bit. * dividing the parsing logic into several functions to allow for code reuse (e.g. by sysfs-related functions). * introducing a new, device generation-specific function to verify whether the requested service combination is supported by the currently used device. Signed-off-by: Małgorzata Mielnik <malgorzata.mielnik@intel.com> Co-developed-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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.