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Each QPL page is divided into GVE_TX_BUFS_PER_PAGE_DQO buffers. When a packet needs to be transmitted, we break the packet into max GVE_TX_BUF_SIZE_DQO sized chunks and transmit each chunk using a TX descriptor. We allocate the TX buffers from the free list in dqo_tx. We store these TX buffer indices in an array in the pending_packet structure. The TX buffers are returned to the free list in dqo_compl after receiving packet completion or when removing packets from miss completions list. Signed-off-by: Rushil Gupta <rushilg@google.com> Reviewed-by: Willem de Bruijn <willemb@google.com> Signed-off-by: Praveen Kaligineedi <pkaligineedi@google.com> Signed-off-by: Bailey Forrest <bcf@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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.