From nobody Mon Feb 9 19:37:58 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D7E01C77B7C for ; Fri, 12 May 2023 15:22:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241825AbjELPWp (ORCPT ); Fri, 12 May 2023 11:22:45 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37822 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241792AbjELPWi (ORCPT ); Fri, 12 May 2023 11:22:38 -0400 Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A8C8CD85C; Fri, 12 May 2023 08:22:08 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1683904928; x=1715440928; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=0H3Jo5u8syYtrs2oEf4GVK8DWDDlchIpBRUlgLTFGBk=; b=CRhsivDRTnYNdPXzf2Rz5w0vTbn3Tl3P48YL+ztyaatoCgdizmOFOeZ0 THFq/q6n89WDx9tSeZww7lPEWyZ4CcGtoItTHFAhuvlJnTshwsKuQNoCm hRLejhGwa7jUoXMYE9lN0hL3QAM6pBTkV2XUKJzEqsmiBC6GB6/Sc55tg M22TD2fGyCMaT5Jb2tUk4cFTLkLBZOwj5Z4HDjrRTSyA1LAXINluJIzeG colmvl2gh3mHewpg6n0T+fjBlIT3gVr0FxWzY24+KkiDMisLiZpj/l6SB XuWv1bYwQJ2HpIxjdEowxqxlbMfjFhnYFi0V3KBh7R7QDHVCrCQT+JT5l Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10708"; a="353061295" X-IronPort-AV: E=Sophos;i="5.99,269,1677571200"; d="scan'208";a="353061295" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 May 2023 08:20:57 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10708"; a="812114649" X-IronPort-AV: E=Sophos;i="5.99,269,1677571200"; d="scan'208";a="812114649" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by fmsmga002.fm.intel.com with ESMTP; 12 May 2023 08:20:53 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 898B636351; Fri, 12 May 2023 16:20:50 +0100 (IST) From: Larysa Zaremba To: bpf@vger.kernel.org Cc: Larysa Zaremba , Stanislav Fomichev , Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Jakub Kicinski , Martin KaFai Lau , Song Liu , Yonghong Song , John Fastabend , KP Singh , Jiri Olsa , Jesse Brandeburg , Tony Nguyen , Anatoly Burakov , Jesper Dangaard Brouer , Alexander Lobakin , Magnus Karlsson , Maryam Tahhan , xdp-hints@xdp-project.net, netdev@vger.kernel.org, intel-wired-lan@lists.osuosl.org, linux-kernel@vger.kernel.org Subject: [PATCH 15/15] selftests/bpf: Add flags and new hints to xdp_hw_metadata Date: Fri, 12 May 2023 17:16:39 +0200 Message-Id: <20230512151639.992033-16-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230512151639.992033-1-larysa.zaremba@intel.com> References: <20230512151639.992033-1-larysa.zaremba@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" Add hints added in the previous patches (VLAN tags and checksum level) to the xdp_hw_metadata program. Also, to make metadata layout more straightforward, add flags field to pass information about validity of every separate hint separately. Signed-off-by: Larysa Zaremba --- .../selftests/bpf/progs/xdp_hw_metadata.c | 40 ++++++++++++++++--- tools/testing/selftests/bpf/xdp_hw_metadata.c | 29 +++++++++++--- tools/testing/selftests/bpf/xdp_metadata.h | 28 ++++++++++++- 3 files changed, 85 insertions(+), 12 deletions(-) diff --git a/tools/testing/selftests/bpf/progs/xdp_hw_metadata.c b/tools/te= sting/selftests/bpf/progs/xdp_hw_metadata.c index f95f82a8b449..97bad79ce4ca 100644 --- a/tools/testing/selftests/bpf/progs/xdp_hw_metadata.c +++ b/tools/testing/selftests/bpf/progs/xdp_hw_metadata.c @@ -20,6 +20,12 @@ extern int bpf_xdp_metadata_rx_timestamp(const struct xd= p_md *ctx, __u64 *timestamp) __ksym; extern int bpf_xdp_metadata_rx_hash(const struct xdp_md *ctx, __u32 *hash, enum xdp_rss_hash_type *rss_type) __ksym; +extern int bpf_xdp_metadata_rx_ctag(const struct xdp_md *ctx, + __u16 *vlan_tag) __ksym; +extern int bpf_xdp_metadata_rx_stag(const struct xdp_md *ctx, + __u16 *vlan_tag) __ksym; +extern int bpf_xdp_metadata_rx_csum_lvl(const struct xdp_md *ctx, + __u8 *csum_level) __ksym; =20 SEC("xdp") int rx(struct xdp_md *ctx) @@ -83,15 +89,39 @@ int rx(struct xdp_md *ctx) return XDP_PASS; } =20 + meta->hint_valid =3D 0; + err =3D bpf_xdp_metadata_rx_timestamp(ctx, &meta->rx_timestamp); - if (!err) + if (err) { + meta->rx_timestamp_err =3D err; + } else { + meta->hint_valid |=3D XDP_META_FIELD_TS; meta->xdp_timestamp =3D bpf_ktime_get_tai_ns(); - else - meta->rx_timestamp =3D 0; /* Used by AF_XDP as not avail signal */ + } =20 err =3D bpf_xdp_metadata_rx_hash(ctx, &meta->rx_hash, &meta->rx_hash_type= ); - if (err < 0) - meta->rx_hash_err =3D err; /* Used by AF_XDP as no hash signal */ + if (err) + meta->rx_hash_err =3D err; + else + meta->hint_valid |=3D XDP_META_FIELD_RSS; + + err =3D bpf_xdp_metadata_rx_ctag(ctx, &meta->rx_ctag); + if (err) + meta->rx_ctag_err =3D err; + else + meta->hint_valid |=3D XDP_META_FIELD_CTAG; + + err =3D bpf_xdp_metadata_rx_stag(ctx, &meta->rx_stag); + if (err) + meta->rx_stag_err =3D err; + else + meta->hint_valid |=3D XDP_META_FIELD_STAG; + + err =3D bpf_xdp_metadata_rx_csum_lvl(ctx, &meta->rx_csum_lvl); + if (err) + meta->rx_csum_err =3D err; + else + meta->hint_valid |=3D XDP_META_FIELD_CSUM_LVL; =20 __sync_add_and_fetch(&pkts_redir, 1); return bpf_redirect_map(&xsk, ctx->rx_queue_index, XDP_PASS); diff --git a/tools/testing/selftests/bpf/xdp_hw_metadata.c b/tools/testing/= selftests/bpf/xdp_hw_metadata.c index 613321eb84c1..efcabe68f64b 100644 --- a/tools/testing/selftests/bpf/xdp_hw_metadata.c +++ b/tools/testing/selftests/bpf/xdp_hw_metadata.c @@ -156,15 +156,16 @@ static void verify_xdp_metadata(void *data, clockid_t= clock_id) =20 meta =3D data - sizeof(*meta); =20 - if (meta->rx_hash_err < 0) - printf("No rx_hash err=3D%d\n", meta->rx_hash_err); - else + if (meta->hint_valid & XDP_META_FIELD_RSS) printf("rx_hash: 0x%X with RSS type:0x%X\n", meta->rx_hash, meta->rx_hash_type); + else + printf("No rx_hash, err=3D%d\n", meta->rx_hash_err); + + if (meta->hint_valid & XDP_META_FIELD_TS) { + printf("rx_timestamp: %llu (sec:%0.4f)\n", meta->rx_timestamp, + (double)meta->rx_timestamp / NANOSEC_PER_SEC); =20 - printf("rx_timestamp: %llu (sec:%0.4f)\n", meta->rx_timestamp, - (double)meta->rx_timestamp / NANOSEC_PER_SEC); - if (meta->rx_timestamp) { __u64 usr_clock =3D gettime(clock_id); __u64 xdp_clock =3D meta->xdp_timestamp; __s64 delta_X =3D xdp_clock - meta->rx_timestamp; @@ -179,8 +180,24 @@ static void verify_xdp_metadata(void *data, clockid_t = clock_id) usr_clock, (double)usr_clock / NANOSEC_PER_SEC, (double)delta_X2U / NANOSEC_PER_SEC, (double)delta_X2U / 1000); + } else { + printf("No rx_timestamp, err=3D%d\n", meta->rx_timestamp_err); } =20 + if (meta->hint_valid & XDP_META_FIELD_CTAG) + printf("rx_ctag: %u\n", meta->rx_ctag); + else + printf("No rx_ctag, err=3D%d\n", meta->rx_ctag_err); + + if (meta->hint_valid & XDP_META_FIELD_STAG) + printf("rx_stag: %u\n", meta->rx_stag); + else + printf("No rx_stag, err=3D%d\n", meta->rx_stag_err); + + if (meta->hint_valid & XDP_META_FIELD_CSUM_LVL) + printf("Checksum was checked at level %u\n", meta->rx_csum_lvl); + else + printf("Checksum was not checked, err=3D%d\n", meta->rx_csum_err); } =20 static void verify_skb_metadata(int fd) diff --git a/tools/testing/selftests/bpf/xdp_metadata.h b/tools/testing/sel= ftests/bpf/xdp_metadata.h index 6664893c2c77..7c0267a8918a 100644 --- a/tools/testing/selftests/bpf/xdp_metadata.h +++ b/tools/testing/selftests/bpf/xdp_metadata.h @@ -17,12 +17,38 @@ #define ETH_P_8021AD 0x88A8 #endif =20 +#define BIT(nr) (1 << (nr)) + +enum xdp_meta_field { + XDP_META_FIELD_TS =3D BIT(0), + XDP_META_FIELD_RSS =3D BIT(1), + XDP_META_FIELD_CTAG =3D BIT(2), + XDP_META_FIELD_STAG =3D BIT(3), + XDP_META_FIELD_CSUM_LVL =3D BIT(4), +}; + struct xdp_meta { - __u64 rx_timestamp; + union { + __u64 rx_timestamp; + __s32 rx_timestamp_err; + }; __u64 xdp_timestamp; __u32 rx_hash; union { __u32 rx_hash_type; __s32 rx_hash_err; }; + union { + __u16 rx_ctag; + __s32 rx_ctag_err; + }; + union { + __u16 rx_stag; + __s32 rx_stag_err; + }; + union { + __u8 rx_csum_lvl; + __s32 rx_csum_err; + }; + enum xdp_meta_field hint_valid; }; --=20 2.35.3