From 014cd0a368dc6351c65d51e4ee34f8573a4a1543 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Thu, 17 Aug 2017 20:30:39 +1000 Subject: 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 --- Documentation/sysctl/net.txt | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt index 14db18c970b1..b9c3c6078010 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 -- cgit v1.2.3-59-g8ed1b