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The ice_vc_isvalid_q_id() function takes a VSI index and a queue ID. It looks up the VSI from its index, and then validates that the queue number is valid for that VSI. The VSI ID passed is typically a VSI index from the VF. This VSI number is validated by the PF to ensure that it matches the VSI associated with the VF already. In every flow where ice_vc_isvalid_q_id() is called, the PF driver already has a pointer to the VSI associated with the VF. This pointer is obtained using ice_get_vf_vsi(), rather than looking up the VSI using the index sent by the VF. Since we already know which VSI to operate on, we can modify ice_vc_isvalid_q_id() to take a VSI pointer instead of a VSI index. Pass the VSI we found from ice_get_vf_vsi() instead of re-doing the lookup. This removes some unnecessary computation and scanning of the VSI list. It also removes the last place where the driver directly used the VSI number from the VF. This will pave the way for refactoring to communicate relative VSI numbers to the VF instead of absolute numbers from the PF space. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Tested-by: Rafal Romanowski <rafal.romanowski@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 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.