From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 6240F3D3CF0; Wed, 15 Jul 2026 21:41:09 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784151670; cv=none; b=nv9js/j1xdJZ/xtFWvO5uU/FXC3KOykvmLBZddwWMzaAB0GiE4w7T4XyBitTtRNciY9BnQ5nno63aTmlfziJCa2uqrhkD6fsDd8lbnRZAbPLvVKcb3jHMhzvG2Ssw5esE1rVJoou1Zt46+tLRWFuezNGCbjrPVY1AMtZhxMpj4M= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784151670; c=relaxed/simple; bh=hZcY9ci1Hpb4Qd5JvT5cOGcqU9FuuMaLWzWJg2yVj2Y=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=KkK237qs6w++iVpo9ZQ+a/psMWcS0xWhOjeEvhoD7UKO9MiG4kM9AMejOm2C6bN3BR1WeisNfxi3frY1X/vz6OW2jcWmb8sf0V9ZpN8DAghIY/gHS3jobO9w0fo4iSsg2O0yfFECzH0NsHerRQ4XEH4tdX59YaWmbm5WCvR2/mY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=jUOCxkHi; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="jUOCxkHi" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5BB3C1F00ACA; Wed, 15 Jul 2026 21:41:08 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1784151669; bh=JQ8p5mYtWA3i+I5cBoLmSPNPAhSP0HZCk2Kpee4AGAc=; h=From:Date:Subject:References:In-Reply-To:To:Cc; b=jUOCxkHifOGgYxxJeVSPBvGbTVZqau9fN1EiYF+vVXwcnR7Mlaz6PXl4GdBJNBNyB GAkdQ/Pm9hyhdVDRpYNgrW4gsultzAXDb6NM5LA8+a0O2biGC8Fq/Uj7LXwCCKWJsN v0n6NpEMMwVWmPz1Uvz2DgpmltBoi+ZVQ4gfOsIDYWfaS0zPsg7IixbKSf/Dyy8hFE 1zmTb4GGW8hNXq7n2GhKuvysx2vSNTq8M7Idp865Y/StKT9JJiHZGOtwqkWFBsBTue E9XAbIuKLcsZdRUIXRNbciahDtXzpFpHd4uFKU0WbnTgwk8y/SF/LmECTwZXWooqX8 HWChQtsKPddwQ== From: Lorenzo Bianconi Date: Wed, 15 Jul 2026 23:39:44 +0200 Subject: [PATCH bpf-next v5 4/8] 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: <20260715-bpf-xdp-meta-rxcksum-v5-4-623d5c0d0ab7@kernel.org> References: <20260715-bpf-xdp-meta-rxcksum-v5-0-623d5c0d0ab7@kernel.org> In-Reply-To: <20260715-bpf-xdp-meta-rxcksum-v5-0-623d5c0d0ab7@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 , Jonathan Corbet , Shuah Khan , Kumar Kartikeya Dwivedi , Emil Tsalapatis Cc: Vladimir Vdovin , Jakub Sitnicki , netdev@vger.kernel.org, bpf@vger.kernel.org, intel-wired-lan@lists.osuosl.org, linux-kselftest@vger.kernel.org, linux-doc@vger.kernel.org, Aleksandr Loktionov , Lorenzo Bianconi X-Mailer: b4 0.14.3 Introduce dedicated selftest for bpf_xdp_metadata_rx_checksum kfunc to bpf selftest framework. Reviewed-by: Aleksandr Loktionov Signed-off-by: Lorenzo Bianconi --- tools/testing/selftests/bpf/prog_tests/xdp_metadata.c | 9 +++++++++ tools/testing/selftests/bpf/progs/xdp_metadata.c | 2 ++ tools/testing/selftests/bpf/xdp_metadata.h | 9 +++++++++ 3 files changed, 20 insertions(+) diff --git a/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c index 5c31054ad4a4..91de61c822f5 100644 --- a/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c +++ b/tools/testing/selftests/bpf/prog_tests/xdp_metadata.c @@ -310,6 +310,15 @@ 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, XDP_CHECKSUM_NONE, "rx_ip_summed")) + return -1; + + if (!ASSERT_EQ(meta->cksum, 0, "rx_cksum")) + return -1; + + if (!ASSERT_EQ(meta->cksum_level, 0, "rx_cksum_level")) + 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 09bb8a038d52..af1e19d48d67 100644 --- a/tools/testing/selftests/bpf/progs/xdp_metadata.c +++ b/tools/testing/selftests/bpf/progs/xdp_metadata.c @@ -98,6 +98,8 @@ 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->cksum_level); 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 87318ad1117a..bca09b94af26 100644 --- a/tools/testing/selftests/bpf/xdp_metadata.h +++ b/tools/testing/selftests/bpf/xdp_metadata.h @@ -30,6 +30,10 @@ enum xdp_meta_field { XDP_META_FIELD_VLAN_TAG = BIT(2), }; +#define XDP_CHECKSUM_NONE BIT(0) +#define XDP_CHECKSUM_UNNECESSARY BIT(1) +#define XDP_CHECKSUM_COMPLETE BIT(2) + struct xdp_meta { union { __u64 rx_timestamp; @@ -48,5 +52,10 @@ struct xdp_meta { }; __s32 rx_vlan_tag_err; }; + struct { + __u32 ip_summed; + __u32 cksum; + __u8 cksum_level; + }; enum xdp_meta_field hint_valid; }; -- 2.55.0