In the downstream patch that adds support to XDP_REDIRECT-out, the XDP xmit frame function doesn't share the same run context as the NAPI that polls the XDP-SQ completion queue. Hence, need to re-order the XDP-SQ fields to avoid cacheline false-sharing. Take redirect_flush and doorbell out of DB, into separated cachelines. Add a cacheline breaker within the stats struct. Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.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. See Documentation/00-INDEX for a list of what is contained in each file. 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.
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