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IDPF supports two queue models i.e. single queue which is a traditional queueing model as well as split queue model. In single queue model, the same descriptor queue is used by SW to post descriptors to the HW, HW to post completed descriptors to SW. In split queue model, "TX Queues" are used to pass buffers from SW to HW and "TX Completion Queues" are used to post descriptor completions from HW to SW. Device supports asymmetric ratio of TX queues to TX completion queues. Considering this, queue group mechanism is used i.e. some TX queues are grouped together which will be serviced by only one TX completion queue per TX queue group. Add all the resources required for the TX queues initialization. To start with, allocate memory for the TX queue groups, TX queues and TX completion queues. Then, allocate the descriptors for both TX and TX completion queues, and bookkeeping buffers for TX queues alone. Also, allocate queue vectors for the vport and initialize the TX queue related fields for each queue vector. Initialize the queue parameters such as q_id, q_type and tail register offset with the info received from the device control plane (CP). Once all the TX queues are configured, send config TX queue virtchnl message to the CP with all the TX queue context information. Signed-off-by: Alan Brady <alan.brady@intel.com> Co-developed-by: Alice Michael <alice.michael@intel.com> Signed-off-by: Alice Michael <alice.michael@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: 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> 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>
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.