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This patch adds support for using 3K buffers in order 1 pages the same way we were using 2K buffers in 4K pages. We are reserving 1K of room for now to have space available for future headroom and tailroom when we enable build_skb support. One side effect of this patch is that we can end up using a larger buffer if jumbo frames is enabled. The impact shouldn't be too great, but it could hurt small packet performance for UDP workloads if jumbo frames is enabled as the truesize of frames will be larger. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. 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.