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 BB3F83128A3; Tue, 10 Feb 2026 17:22:15 +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=1770744137; cv=none; b=f53y6tGu6hj0UofiFVOu23Cge1v8CKJ0hcaXrkh7EGjRaY8POt3yBGEk8SJojJMAk8L8725g151haK+hvHRDfhYASYeIK5ez0YYZ+jtajHZIylptvlCe3p/fv3k8tNPg+WjseEu6dPH8G1j08YEI1CnNNzUlvUDGG5IIwh1OifQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770744137; c=relaxed/simple; bh=yBBOEuRACrTrU3mNxgRQgQe/fJ3wQzfx+UORh+ruz5Q=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=hgKW/vUMLXGnvrLx55CskmjBVOXVhASEYAjhPkV/Uslsy0lHP8f4RmXW1NuOyJb18doaBPZZhMyEIvqRr1sVrs8FltxE6sQWJxS4Bbxc07MZX42AtFNrvXJEfZ3wbP100Rua7zob/SkqwXXL5stBoAa8Q+y4GGQdx5iE9NE63Dg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=XrzHLwud; 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="XrzHLwud" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D6D85C116C6; Tue, 10 Feb 2026 17:22:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1770744135; bh=yBBOEuRACrTrU3mNxgRQgQe/fJ3wQzfx+UORh+ruz5Q=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=XrzHLwudb2DoS4C0sUx7B1zOK7yZVOGy4Q0fDvuOPuKQUamX08/FnoVPX0+5zt2rt w2q+LDjKAmVqoiVomGvk5ILg1gJI0lB+AelHBiD/Zrp9zGx8w1FJdLxNYffey/bKTx 31LCzPfqhIn+fvUubkD4s0jUIHJwzvcCRTa4tGYilSrQUiuzqoQ3vJtrXohL2oRlMl dQmxuPMFNny6xKOojrYsmh90yG3LbQsN7ORNbVERpVjUjZ8VRuAxfFo0KXuuvcygwU LpAVjFkc0sTHxL2lAh1YJ7ABRPjVA2nvIaJmzMzqrz3CHkbDUhDlWbl8MaxtmuII8U rpUlfDnoCuZ5g== From: Lorenzo Bianconi Date: Tue, 10 Feb 2026 18:21:50 +0100 Subject: [PATCH bpf-next 4/5] 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: <20260210-bpf-xdp-meta-rxcksum-v1-4-e5d55caa0541@kernel.org> References: <20260210-bpf-xdp-meta-rxcksum-v1-0-e5d55caa0541@kernel.org> In-Reply-To: <20260210-bpf-xdp-meta-rxcksum-v1-0-e5d55caa0541@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 , Maciej Fijalkowski Cc: Jakub Sitnicki , 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..707c98e664745763b01b638a537a797211ded4e1 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 ? XDP_CHECKSUM_NONE : XDP_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..a16f71488a34e6df23fec6dd7dde7b7989774618 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 XDP_CHECKSUM_NONE 0 +#define XDP_CHECKSUM_UNNECESSARY 1 +#define XDP_CHECKSUM_COMPLETE 2 +#define XDP_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; }; -- 2.53.0