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| author |   Michael Ellerman <mpe@ellerman.id.au> | 2017-08-17 20:30:39 +1000 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-08-17 10:09:28 -0700 |
| commit | 014cd0a368dc6351c65d51e4ee34f8573a4a1543 (patch) | |
| tree | 965417f9d84fffdabf3930c6b3f9f242f7506750 /Documentation/sysctl | |
| parent | ipv4: better IP_MAX_MTU enforcement (diff) | |
| download | linux-dev-014cd0a368dc6351c65d51e4ee34f8573a4a1543.tar.xz linux-dev-014cd0a368dc6351c65d51e4ee34f8573a4a1543.zip | |
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 <mpe@ellerman.id.au>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation/sysctl')
| -rw-r--r-- | Documentation/sysctl/net.txt | 19 |
1 files changed, 17 insertions, 2 deletions
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 |