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| author | Thomas Graf <tgraf@suug.ch> | 2016-11-30 19:10:11 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-12-02 18:52:00 +0300 |
| commit | f74599f7c5309b21151233b98139e9b723fd1110 (patch) | |
| tree | ac7fa7fac909e55054a01ade7d924c94fe7ab402 /samples/bpf/Makefile | |
| parent | 3a0af8fd61f90920f6fa04e4f1e9a6a73c1b4fd2 (diff) | |
| download | linux-f74599f7c5309b21151233b98139e9b723fd1110.tar.xz | |
bpf: Add tests and samples for LWT-BPF
Adds a series of tests to verify the functionality of attaching
BPF programs at LWT hooks.
Also adds a sample which collects a histogram of packet sizes which
pass through an LWT hook.
$ ./lwt_len_hist.sh
Starting netserver with host 'IN(6)ADDR_ANY' port '12865' and family AF_UNSPEC
MIGRATED TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to 192.168.253.2 () port 0 AF_INET : demo
Recv Send Send
Socket Socket Message Elapsed
Size Size Size Time Throughput
bytes bytes bytes secs. 10^6bits/sec
87380 16384 16384 10.00 39857.69
1 -> 1 : 0 | |
2 -> 3 : 0 | |
4 -> 7 : 0 | |
8 -> 15 : 0 | |
16 -> 31 : 0 | |
32 -> 63 : 22 | |
64 -> 127 : 98 | |
128 -> 255 : 213 | |
256 -> 511 : 1444251 |******** |
512 -> 1023 : 660610 |*** |
1024 -> 2047 : 535241 |** |
2048 -> 4095 : 19 | |
4096 -> 8191 : 180 | |
8192 -> 16383 : 5578023 |************************************* |
16384 -> 32767 : 632099 |*** |
32768 -> 65535 : 6575 | |
Signed-off-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'samples/bpf/Makefile')
| -rw-r--r-- | samples/bpf/Makefile | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile index 3ceb5a9d86df..44532fbe4cae 100644 --- a/samples/bpf/Makefile +++ b/samples/bpf/Makefile @@ -29,6 +29,7 @@ hostprogs-y += test_current_task_under_cgroup hostprogs-y += trace_event hostprogs-y += sampleip hostprogs-y += tc_l2_redirect +hostprogs-y += lwt_len_hist test_lru_dist-objs := test_lru_dist.o libbpf.o sock_example-objs := sock_example.o libbpf.o @@ -59,6 +60,7 @@ test_current_task_under_cgroup-objs := bpf_load.o libbpf.o \ trace_event-objs := bpf_load.o libbpf.o trace_event_user.o sampleip-objs := bpf_load.o libbpf.o sampleip_user.o tc_l2_redirect-objs := bpf_load.o libbpf.o tc_l2_redirect_user.o +lwt_len_hist-objs := bpf_load.o libbpf.o lwt_len_hist_user.o # Tell kbuild to always build the programs always := $(hostprogs-y) @@ -89,6 +91,7 @@ always += xdp2_kern.o always += test_current_task_under_cgroup_kern.o always += trace_event_kern.o always += sampleip_kern.o +always += lwt_len_hist_kern.o HOSTCFLAGS += -I$(objtree)/usr/include HOSTCFLAGS += -I$(srctree)/tools/testing/selftests/bpf/ @@ -117,6 +120,7 @@ HOSTLOADLIBES_test_current_task_under_cgroup += -lelf HOSTLOADLIBES_trace_event += -lelf HOSTLOADLIBES_sampleip += -lelf HOSTLOADLIBES_tc_l2_redirect += -l elf +HOSTLOADLIBES_lwt_len_hist += -l elf # Allows pointing LLC/CLANG to a LLVM backend with bpf support, redefine on cmdline: # make samples/bpf/ LLC=~/git/llvm/build/bin/llc CLANG=~/git/llvm/build/bin/clang |