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XDP generic allows users to test XDP programs and/or run them with degraded performance on devices that do not yet support XDP. For testing I typically test eBPF programs using a set of veth devices. This allows testing topologies that would otherwise be difficult to setup especially in the early stages of development. This patch adds a xdp generic hook to the netif_rx_internal() function which is called from dev_forward_skb(). With this addition attaching XDP programs to veth devices works as expected! Also I noticed multiple drivers using netif_rx(). These devices will also benefit and generic XDP will work for them as well. Signed-off-by: John Fastabend <john.fastabend@gmail.com> Tested-by: Andy Gospodarek <andy@greyhouse.net> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| kernel | ||
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| Makefile | ||
| README | ||
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.