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bpf, kconfig: Add consolidated menu entry for bpf with core options

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Right now, all core BPF related options are scattered in different Kconfig
locations mainly due to historic reasons. Moving forward, lets add a proper
subsystem entry under ...

  General setup  --->
    BPF subsystem  --->

... in order to have all knobs in a single location and thus ease BPF related
configuration. Networking related bits such as sockmap are out of scope for
the general setup and therefore better suited to remain in net/Kconfig.

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/f23f58765a4d59244ebd8037da7b6a6b2fb58446.1620765074.git.daniel@iogearbox.net
This commit is contained in:
Daniel Borkmann
2021-05-11 22:35:16 +02:00
committed by Alexei Starovoitov
parent 04ea3086c4
commit b24abcff91
3 changed files with 79 additions and 67 deletions
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27
net/Kconfig
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@@ -302,21 +302,6 @@ config BQL
select DQL
default y
config BPF_JIT
bool "enable BPF Just In Time compiler"
depends on HAVE_CBPF_JIT || HAVE_EBPF_JIT
depends on MODULES
help
Berkeley Packet Filter filtering capabilities are normally handled
by an interpreter. This option allows kernel to generate a native
code when filter is loaded in memory. This should speedup
packet sniffing (libpcap/tcpdump).
Note, admin should enable this feature changing:
/proc/sys/net/core/bpf_jit_enable
/proc/sys/net/core/bpf_jit_harden (optional)
/proc/sys/net/core/bpf_jit_kallsyms (optional)
config BPF_STREAM_PARSER
bool "enable BPF STREAM_PARSER"
depends on INET
@@ -470,15 +455,3 @@ config ETHTOOL_NETLINK
e.g. notification messages.
endif # if NET
# Used by archs to tell that they support BPF JIT compiler plus which flavour.
# Only one of the two can be selected for a specific arch since eBPF JIT supersedes
# the cBPF JIT.
# Classic BPF JIT (cBPF)
config HAVE_CBPF_JIT
bool
# Extended BPF JIT (eBPF)
config HAVE_EBPF_JIT
bool