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[net-next,3/5] net: filter: doc: add section for BPF test suite

Message ID 1400863441-3711-4-git-send-email-dborkman@redhat.com
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Daniel Borkmann May 23, 2014, 4:43 p.m. UTC 
Mention the recently added test suite in the documentation file.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
---
 Documentation/networking/filter.txt | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
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Patch

diff --git a/Documentation/networking/filter.txt b/Documentation/networking/filter.txt
index 748fd38..dc7dcc8 100644
--- a/Documentation/networking/filter.txt
+++ b/Documentation/networking/filter.txt
@@ -833,6 +833,20 @@  loops and other CFG validation; second step starts from the first insn and
 descends all possible paths. It simulates execution of every insn and observes
 the state change of registers and stack.
 
+Testing
+-------
+
+Next to the BPF toolchain, the kernel also ships a test module that contains
+various test cases for classic and internal BPF that can be executed against
+the BPF interpreter and JIT compiler. It can be found in lib/test_bpf.c and
+enabled via Kconfig:
+
+  CONFIG_TEST_BPF=m
+
+After the module has been built and installed, the test suite can be executed
+via insmod or modprobe against 'test_bpf' module. Results of the test cases
+including timings in nsec can be found in the kernel log (dmesg).
+
 Misc
 ----