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95ad92d687
New E810 firmware supports the corresponding functionality, so the driver allows PFs to subscribe the same switch recipes. Then when the PF is done with a switch recipes, the PF can ask firmware to free that switch recipe. When users configure a rule to PFn into E810 switch component, if there is no existing recipe matching this rule's pattern, the driver will request firmware to allocate and return a new recipe resource for the rule by calling ice_add_sw_recipe() and ice_alloc_recipe(). If there is an existing recipe matching this rule's pattern with different key value, or this is a same second rule to PFm into switch component, the driver checks out this recipe by calling ice_find_recp(), the driver will tell firmware to share using this same recipe resource by calling ice_subscribable_recp_shared() and ice_subscribe_recipe(). When firmware detects that all subscribing PFs have freed the switch recipe, firmware will free the switch recipe so that it can be reused. This feature also fixes a problem where all switch recipes would eventually be exhausted because switch recipes could not be freed, as freeing a shared recipe could potentially break other PFs that were using it. Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Reviewed-by: Andrii Staikov <andrii.staikov@intel.com> Reviewed-by: Simon Horman <horms@kernel.org> Signed-off-by: Steven Zou <steven.zou@intel.com> Tested-by: Mayank Sharma <mayank.sharma@intel.com> Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> |
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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 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.