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3a8845af66
Add support to handle interrupts for the RX completion queue and RX buffer queue. When the interrupt fires on RX completion queue, process the RX descriptors that are received. Allocate and prepare the SKB with the RX packet info, for both data and header buffer. IDPF uses software maintained refill queues to manage buffers between RX queue producer and the buffer queue consumer. They are required in order to maintain a lockless buffer management system and are strictly software only constructs. Instead of updating the RX buffer queue tail with available buffers right after the clean routine, it posts the buffer ids to the refill queues, only to post them to the HW later. If the generic receive offload (GRO) is enabled in the capabilities and turned on by default or via ethtool, then HW performs the packet coalescing if certain criteria are met by the incoming packets and updates the RX descriptor. Similar to GRO, if generic checksum is enabled, HW computes the checksum and updates the respective fields in the descriptor. Add support to update the SKB fields with the GRO and the generic checksum received. Signed-off-by: Alan Brady <alan.brady@intel.com> Co-developed-by: Joshua Hay <joshua.a.hay@intel.com> Signed-off-by: Joshua Hay <joshua.a.hay@intel.com> Co-developed-by: Madhu Chittim <madhu.chittim@intel.com> Signed-off-by: Madhu Chittim <madhu.chittim@intel.com> Co-developed-by: Phani Burra <phani.r.burra@intel.com> Signed-off-by: Phani Burra <phani.r.burra@intel.com> Reviewed-by: Sridhar Samudrala <sridhar.samudrala@intel.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Acked-by: Jakub Kicinski <kuba@kernel.org> Co-developed-by: Pavan Kumar Linga <pavan.kumar.linga@intel.com> Signed-off-by: Pavan Kumar Linga <pavan.kumar.linga@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.