netdev - [PATCH bpf-next] selftests/bpf: use reno instead of dctcp

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Message-Id: <20200501224320.28441-1-sdf@google.com>
Date:   Fri,  1 May 2020 15:43:20 -0700
From:   Stanislav Fomichev <sdf@...gle.com>
To:     netdev@...r.kernel.org, bpf@...r.kernel.org
Cc:     davem@...emloft.net, ast@...nel.org, daniel@...earbox.net,
        Stanislav Fomichev <sdf@...gle.com>,
        Andrey Ignatov <rdna@...com>
Subject: [PATCH bpf-next] selftests/bpf: use reno instead of dctcp

Andrey pointed out that we can use reno instead of dctcp for CC
tests and drop CONFIG_TCP_CONG_DCTCP=y requirement.

Fixes: beecf11bc218 ("bpf: Bpf_{g,s}etsockopt for struct bpf_sock_addr")
Suggested-by: Andrey Ignatov <rdna@...com>
Signed-off-by: Stanislav Fomichev <sdf@...gle.com>
---
 tools/testing/selftests/bpf/config                | 1 -
 tools/testing/selftests/bpf/progs/connect4_prog.c | 6 +++---
 2 files changed, 3 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/bpf/config b/tools/testing/selftests/bpf/config
index 6e5b94c036ca..60e3ae5d4e48 100644
--- a/tools/testing/selftests/bpf/config
+++ b/tools/testing/selftests/bpf/config
@@ -37,4 +37,3 @@ CONFIG_IPV6_SIT=m
 CONFIG_BPF_JIT=y
 CONFIG_BPF_LSM=y
 CONFIG_SECURITY=y
-CONFIG_TCP_CONG_DCTCP=y
diff --git a/tools/testing/selftests/bpf/progs/connect4_prog.c b/tools/testing/selftests/bpf/progs/connect4_prog.c
index 972918cd2d7f..c2c85c31cffd 100644
--- a/tools/testing/selftests/bpf/progs/connect4_prog.c
+++ b/tools/testing/selftests/bpf/progs/connect4_prog.c
@@ -59,12 +59,12 @@ static __inline int verify_cc(struct bpf_sock_addr *ctx,
 
 static __inline int set_cc(struct bpf_sock_addr *ctx)
 {
-	char dctcp[TCP_CA_NAME_MAX] = "dctcp";
+	char reno[TCP_CA_NAME_MAX] = "reno";
 	char cubic[TCP_CA_NAME_MAX] = "cubic";
 
-	if (bpf_setsockopt(ctx, SOL_TCP, TCP_CONGESTION, &dctcp, sizeof(dctcp)))
+	if (bpf_setsockopt(ctx, SOL_TCP, TCP_CONGESTION, &reno, sizeof(reno)))
 		return 1;
-	if (verify_cc(ctx, dctcp))
+	if (verify_cc(ctx, reno))
 		return 1;
 
 	if (bpf_setsockopt(ctx, SOL_TCP, TCP_CONGESTION, &cubic, sizeof(cubic)))
-- 
2.26.2.526.g744177e7f7-goog