From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EA244303A01; Sat, 20 Sep 2025 12:21:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758370890; cv=none; b=qdg7HmyXGLAU/xHpRcQjYH7nExaeFuxaC8kb5nzwXtFuBrWhz6hbIbSWTUKrWSVEySi0iCq6YeZDCIFyLwxbFLB0eeY8qhMjBC0B9iRtJoYp4BffSVzvLUoeKrFtiHMhD9qsQIRzeQGbcIKlTaLd+ntuY4jbCa4Crb+0W3E/gdU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1758370890; c=relaxed/simple; bh=CMgxYi+GSs67pYTVXIfXO6OSEXKJBkmharSS8EGYHbI=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=f7+aUM0yOb4j3wUnoU2R3rnESPdFagJ0flU9Pha3pO90IVrg75HazCNS2+yMV3mjReZyHqMxMUpEIOpkAORBPs0H8Cx6g5pPC8ERVd/x54t7idCXp4wCAhtC/MK58fblgUh9j6D31G83BA+wLZO8Omyqhd2zVfjWYcgDjq1LMvk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DbuL1oEo; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="DbuL1oEo" Received: by smtp.kernel.org (Postfix) with ESMTPSA id F1DA1C4CEF7; Sat, 20 Sep 2025 12:21:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1758370889; bh=CMgxYi+GSs67pYTVXIfXO6OSEXKJBkmharSS8EGYHbI=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=DbuL1oEoS0VF4Q2K7MdRyr5RtromO1PcwESX9QbysuJzXDAQNievByyNfM4d8+LOG A/kv4tD/HJGQPPqQth7FTIDs87kyygS1iuLV6Hil40pocCR9vqN/niUS8ePU8XO+T9 yq0fYftyII7vmcnUBXMdJK20LO7ToswgkmeLjqkMvAG6fiviRMBnITQTPUyf59zMtm RhfaA2OMeciam/3/lZr3i3NI0RnuxJTgrZbqwcM8poXUmH94T12J61MaUeWOx8rXGa nqBepUMQ1+e0NMNrw09IsGjs9kX4DDVBMCJUQCjhwBNWax0nQeDcrWo8+of9eeAszP FoZ3kPEogCp1A== From: Lorenzo Bianconi Date: Sat, 20 Sep 2025 14:20:31 +0200 Subject: [PATCH RFC bpf-next 5/6] selftests/bpf: Add selftest support for bpf_xdp_metadata_rx_checksum Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250920-xdp-meta-rxcksum-v1-5-35e76a8a84e7@kernel.org> References: <20250920-xdp-meta-rxcksum-v1-0-35e76a8a84e7@kernel.org> In-Reply-To: <20250920-xdp-meta-rxcksum-v1-0-35e76a8a84e7@kernel.org> To: Donald Hunter , Jakub Kicinski , "David S. Miller" , Eric Dumazet , Paolo Abeni , Simon Horman , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Stanislav Fomichev , Andrew Lunn , Tony Nguyen , Przemek Kitszel , Alexander Lobakin , Andrii Nakryiko , Martin KaFai Lau , Eduard Zingerman , Song Liu , Yonghong Song , KP Singh , Hao Luo , Jiri Olsa , Shuah Khan Cc: netdev@vger.kernel.org, bpf@vger.kernel.org, intel-wired-lan@lists.osuosl.org, linux-kselftest@vger.kernel.org, Lorenzo Bianconi X-Mailer: b4 0.14.2 Introduce support to xdp_metadata selftest for bpf_xdp_metadata_rx_checksum kfunc. Signed-off-by: Lorenzo Bianconi --- tools/testing/selftests/bpf/prog_tests/xdp_metadata.c | 7 +++++++ tools/testing/selftests/bpf/progs/xdp_metadata.c | 1 + tools/testing/selftests/bpf/xdp_metadata.h | 9 +++++++++ 3 files changed, 17 insertions(+) diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c index 19f92affc2daa23fdd869554e7a0475b86350a4f..650f87c2bac03841606ceef25eec718b5dcf766f 100644 --- a/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c +++ b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c @@ -258,6 +258,7 @@ static void refill_rx(struct xsk *xsk, __u64 addr) static int verify_xsk_metadata(struct xsk *xsk, bool sent_from_af_xdp) { + __u8 ip_summed = sent_from_af_xdp ? CHECKSUM_NONE : CHECKSUM_PARTIAL; const struct xdp_desc *rx_desc; struct pollfd fds = {}; struct xdp_meta *meta; @@ -310,6 +311,12 @@ static int verify_xsk_metadata(struct xsk *xsk, bool sent_from_af_xdp) if (!ASSERT_NEQ(meta->rx_hash, 0, "rx_hash")) return -1; + if (!ASSERT_EQ(meta->ip_summed, ip_summed, "rx_ip_summed")) + return -1; + + if (!ASSERT_EQ(meta->cksum_meta, 0, "rx_cksum_meta")) + return -1; + if (!sent_from_af_xdp) { if (!ASSERT_NEQ(meta->rx_hash_type & XDP_RSS_TYPE_L4, 0, "rx_hash_type")) return -1; diff --git a/tools/testing/selftests/bpf/progs/xdp_metadata.c b/tools/testing/selftests/bpf/progs/xdp_metadata.c index 09bb8a038d528cf26c5b314cc927915ac2796bf0..ef6a5584a1876a3c47440f21dca927ec783469dc 100644 --- a/tools/testing/selftests/bpf/progs/xdp_metadata.c +++ b/tools/testing/selftests/bpf/progs/xdp_metadata.c @@ -98,6 +98,7 @@ int rx(struct xdp_md *ctx) bpf_xdp_metadata_rx_hash(ctx, &meta->rx_hash, &meta->rx_hash_type); bpf_xdp_metadata_rx_vlan_tag(ctx, &meta->rx_vlan_proto, &meta->rx_vlan_tci); + bpf_xdp_metadata_rx_checksum(ctx, &meta->ip_summed, &meta->cksum_meta); return bpf_redirect_map(&xsk, ctx->rx_queue_index, XDP_PASS); } diff --git a/tools/testing/selftests/bpf/xdp_metadata.h b/tools/testing/selftests/bpf/xdp_metadata.h index 87318ad1117a1d677af121f11778178532e2a562..f0ef17b328866206b1e63f7d751abeaa78e90932 100644 --- a/tools/testing/selftests/bpf/xdp_metadata.h +++ b/tools/testing/selftests/bpf/xdp_metadata.h @@ -30,6 +30,11 @@ enum xdp_meta_field { XDP_META_FIELD_VLAN_TAG = BIT(2), }; +#define CHECKSUM_NONE 0 +#define CHECKSUM_UNNECESSARY 1 +#define CHECKSUM_COMPLETE 2 +#define CHECKSUM_PARTIAL 3 + struct xdp_meta { union { __u64 rx_timestamp; @@ -48,5 +53,9 @@ struct xdp_meta { }; __s32 rx_vlan_tag_err; }; + struct { + __u8 ip_summed; + __u32 cksum_meta; + }; enum xdp_meta_field hint_valid; }; -- 2.51.0