From: Michael Ellerman Date: Thu, 17 Aug 2017 10:30:39 +0000 (+1000) Subject: bpf: Update sysctl documentation to list all supported architectures X-Git-Tag: v4.14-rc1~258^2~21 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=014cd0a368dc6351c65d51e4ee34f8573a4a1543;p=platform%2Fkernel%2Flinux-rpi3.git bpf: Update sysctl documentation to list all supported architectures The sysctl documentation states that the JIT is only available on x86_64, which is no longer correct. Update the list, and break it out to indicate which architectures support the cBPF JIT (via HAVE_CBPF_JIT) or the eBPF JIT (HAVE_EBPF_JIT). Signed-off-by: Michael Ellerman Acked-by: Daniel Borkmann Signed-off-by: David S. Miller --- diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt index 14db18c..b9c3c60 100644 --- a/Documentation/sysctl/net.txt +++ b/Documentation/sysctl/net.txt @@ -36,8 +36,23 @@ bpf_jit_enable -------------- This enables Berkeley Packet Filter Just in Time compiler. -Currently supported on x86_64 architecture, bpf_jit provides a framework -to speed packet filtering, the one used by tcpdump/libpcap for example. + +There are two flavors of JIT, the new eBPF JIT supported on: + - x86_64 + - arm64 + - ppc64 + - sparc64 + - mips64 + +And the older cBPF JIT supported on: + - arm + - mips + - ppc + - sparc + +The BPF JIT provides a framework to speed packet filtering, the one used by +tcpdump/libpcap for example. + Values : 0 - disable the JIT (default value) 1 - enable the JIT