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ef41603d09
In order to support live migration, the ice driver will need to read certain data from the Rx queue context. This is stored in the hardware in a packed format. Since we use <linux/packing.h> for the mapping between the packed hardware format and the unpacked structure, it is trivial to enable unpacking support via the unpack_fields() function. Add the ice_unpack_rxq_ctx() function based on the unpack_fields() API. Re-use the same field definitions from the packing implementation. Add ice_copy_rxq_ctx_from_hw() to copy the Rx queue context data from the hardware registers. Use these to implement ice_read_rxq_ctx() which will return the Rx queue context to the caller in its unpacked ice_rlan_ctx struct. This will enable the migration logic access to the relevant data about the Rx device queues. It can easily be copied to the target system as part of the migration payload, where it will be used to configure the Rx queues. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Reviewed-by: Madhu Chittim <madhu.chittim@intel.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@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.