d9d950490a
Due to the different definition of txbuf in NFDK comparing to NFD3, there're no pre-allocated txbufs for xdp use in NFDK's implementation, we just use the existed rxbuf and recycle it when xdp tx is completed. For each packet to transmit in xdp path, we cannot use more than `NFDK_TX_DESC_PER_SIMPLE_PKT` txbufs, one is to stash virtual address, and another is for dma address, so currently the amount of transmitted bytes is not accumulated. Also we borrow the last bit of virtual addr to indicate a new transmitted packet due to address's alignment attribution. Signed-off-by: Yinjun Zhang <yinjun.zhang@corigine.com> Signed-off-by: Fei Qin <fei.qin@corigine.com> Signed-off-by: Simon Horman <simon.horman@corigine.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.