linux-kernel - [PATCH bpf-next v2 1/2] selftests/bpf: test_xdp

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Message-Id: <20241213-xdp_meta-v2-1-634582725b90@bootlin.com>
Date: Fri, 13 Dec 2024 16:06:20 +0100
From: Bastien Curutchet <bastien.curutchet@...tlin.com>
To: Alexei Starovoitov <ast@...nel.org>, 
 Daniel Borkmann <daniel@...earbox.net>, 
 "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org>, 
 Jesper Dangaard Brouer <hawk@...nel.org>, 
 John Fastabend <john.fastabend@...il.com>, 
 Andrii Nakryiko <andrii@...nel.org>, 
 Martin KaFai Lau <martin.lau@...ux.dev>, 
 Eduard Zingerman <eddyz87@...il.com>, Song Liu <song@...nel.org>, 
 Yonghong Song <yonghong.song@...ux.dev>, KP Singh <kpsingh@...nel.org>, 
 Stanislav Fomichev <sdf@...ichev.me>, Hao Luo <haoluo@...gle.com>, 
 Jiri Olsa <jolsa@...nel.org>, Mykola Lysenko <mykolal@...com>, 
 Shuah Khan <shuah@...nel.org>
Cc: Alexis Lothore <alexis.lothore@...tlin.com>, 
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>, netdev@...r.kernel.org, 
 bpf@...r.kernel.org, linux-kselftest@...r.kernel.org, 
 linux-kernel@...r.kernel.org, 
 Bastien Curutchet <bastien.curutchet@...tlin.com>
Subject: [PATCH bpf-next v2 1/2] selftests/bpf: test_xdp_meta: Rename BPF
 sections

SEC("t") and SEC("x") can't be loaded by the __load() helper.

Rename these sections SEC("tc") and SEC("xdp") so they can be
interpreted by the __load() helper in upcoming patch.
Update the test_xdp_meta.sh to fit these new names.

Signed-off-by: Bastien Curutchet (eBPF Foundation) <bastien.curutchet@...tlin.com>
---
 tools/testing/selftests/bpf/progs/test_xdp_meta.c | 4 ++--
 tools/testing/selftests/bpf/test_xdp_meta.sh      | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/tools/testing/selftests/bpf/progs/test_xdp_meta.c b/tools/testing/selftests/bpf/progs/test_xdp_meta.c
index a7c4a7d49fe6b54b5841e36bcbe9ae9c8577df38..fe2d71ae0e717a32bd2b3a891da8e0d6fa3eba2c 100644
--- a/tools/testing/selftests/bpf/progs/test_xdp_meta.c
+++ b/tools/testing/selftests/bpf/progs/test_xdp_meta.c
@@ -8,7 +8,7 @@
 #define round_up(x, y) ((((x) - 1) | __round_mask(x, y)) + 1)
 #define ctx_ptr(ctx, mem) (void *)(unsigned long)ctx->mem

-SEC("t")
+SEC("tc")
 int ing_cls(struct __sk_buff *ctx)
 {
 	__u8 *data, *data_meta, *data_end;
@@ -28,7 +28,7 @@ int ing_cls(struct __sk_buff *ctx)
 	return diff ? TC_ACT_SHOT : TC_ACT_OK;
 }

-SEC("x")
+SEC("xdp")
 int ing_xdp(struct xdp_md *ctx)
 {
 	__u8 *data, *data_meta, *data_end;
diff --git a/tools/testing/selftests/bpf/test_xdp_meta.sh b/tools/testing/selftests/bpf/test_xdp_meta.sh
index 2740322c1878b3687d9cc4295f81a40042dd24c6..6039b92f10949d48cd9d703d6981ae8a9388e8df 100755
--- a/tools/testing/selftests/bpf/test_xdp_meta.sh
+++ b/tools/testing/selftests/bpf/test_xdp_meta.sh
@@ -43,11 +43,11 @@ ip netns exec ${NS2} ip addr add 10.1.1.22/24 dev veth2
 ip netns exec ${NS1} tc qdisc add dev veth1 clsact
 ip netns exec ${NS2} tc qdisc add dev veth2 clsact

-ip netns exec ${NS1} tc filter add dev veth1 ingress bpf da obj ${BPF_FILE} sec t
-ip netns exec ${NS2} tc filter add dev veth2 ingress bpf da obj ${BPF_FILE} sec t
+ip netns exec ${NS1} tc filter add dev veth1 ingress bpf da obj ${BPF_FILE} sec tc
+ip netns exec ${NS2} tc filter add dev veth2 ingress bpf da obj ${BPF_FILE} sec tc

-ip netns exec ${NS1} ip link set dev veth1 xdp obj ${BPF_FILE} sec x
-ip netns exec ${NS2} ip link set dev veth2 xdp obj ${BPF_FILE} sec x
+ip netns exec ${NS1} ip link set dev veth1 xdp obj ${BPF_FILE} sec xdp
+ip netns exec ${NS2} ip link set dev veth2 xdp obj ${BPF_FILE} sec xdp

 ip netns exec ${NS1} ip link set dev veth1 up
 ip netns exec ${NS2} ip link set dev veth2 up

-- 
2.47.0