[v10] BPF packet scheduler updates part 1

[PATCH mptcp-next v10 05/13] Squash to "bpf: Add bpf_mptcp_sched_ops"

Geliang Tang posted 13 patches 2 years, 7 months ago

Diff against v11
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Maintainers: Alexei Starovoitov <ast@kernel.org>, Daniel Borkmann <daniel@iogearbox.net>, John Fastabend <john.fastabend@gmail.com>, Andrii Nakryiko <andrii@kernel.org>, Martin KaFai Lau <martin.lau@linux.dev>, Song Liu <song@kernel.org>, Yonghong Song <yhs@fb.com>, KP Singh <kpsingh@kernel.org>, Stanislav Fomichev <sdf@google.com>, Hao Luo <haoluo@google.com>, Jiri Olsa <jolsa@kernel.org>, Matthieu Baerts <matthieu.baerts@tessares.net>, Mat Martineau <martineau@kernel.org>, "David S. Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, Mykola Lysenko <mykolal@fb.com>, Shuah Khan <shuah@kernel.org>

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[PATCH mptcp-next v10 05/13] Squash to "bpf: Add bpf_mptcp_sched_ops"

Posted by Geliang Tang 2 years, 7 months ago

Add write accesses for avg_pacing_rate of struct mptcp_subflow_context
in .btf_struct_access. They will be used in the bpf_burst selftests.

Add write accesses for all bit flags of struct mptcp_subflow_context
between map_csum_len and data_avail in .btf_struct_access. The stale
flag will be used in the bpf_stale selftests.

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
---
 net/mptcp/bpf.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/net/mptcp/bpf.c b/net/mptcp/bpf.c
index dd1208670c54..b9fbee8d7bac 100644
--- a/net/mptcp/bpf.c
+++ b/net/mptcp/bpf.c
@@ -50,6 +50,12 @@ static int bpf_mptcp_sched_btf_struct_access(struct bpf_verifier_log *log,
 	case offsetof(struct mptcp_subflow_context, scheduled):
 		end = offsetofend(struct mptcp_subflow_context, scheduled);
 		break;
+	case offsetofend(struct mptcp_subflow_context, map_csum_len):
+		end = offsetof(struct mptcp_subflow_context, data_avail);
+		break;
+	case offsetof(struct mptcp_subflow_context, avg_pacing_rate):
+		end = offsetofend(struct mptcp_subflow_context, avg_pacing_rate);
+		break;
 	default:
 		bpf_log(log, "no write support to mptcp_subflow_context at off %d\n", off);
 		return -EACCES;
-- 
2.35.3