openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

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>
This commit is contained in:
Michael Ellerman 2017-08-17 20:30:39 +10:00 committed by David S. Miller
parent c780a049f9
commit 014cd0a368
1 changed files with 17 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
Documentation/sysctl/net.txt
View File

@ -36,8 +36,23 @@ bpf_jit_enable
-------------- --------------
This enables Berkeley Packet Filter Just in Time compiler. 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 : Values :
0 - disable the JIT (default value) 0 - disable the JIT (default value)
1 - enable the JIT 1 - enable the JIT