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Commit 014cd0a3 authored by Michael Ellerman's avatar Michael Ellerman Committed by David S. Miller
Browse files

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: default avatarMichael Ellerman <mpe@ellerman.id.au>
Acked-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent c780a049

Documentation/sysctl/net.txt

+17 −2
Original line number Diff line number Diff line
@@ -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