From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.19]) (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 DC19F3C09EC; Tue, 1 Sep 2026 21:18:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.19 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788297492; cv=none; b=rs23Nn6ui3MSWU10yRLG1fWZb4sBWrItJekAD44NbnFcge0UBsxeZHfwE8+2ZGmN0tHvXYjwKmMArj5bXxVIHtZ0GIxGJV+19apef2sJ6eE4eeMa5uhmAzZYmvNotmuU6u5lTRmRTmwgq38evclQzuC4nlnNNlBr3atVzPntuIM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1788297492; c=relaxed/simple; bh=l53vH96oBxDrKf3F+DaJU5jUopwYKXsTsTUvDa/ClKc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Pvlu74FKhty6ddMk7DpVkLmfi/xf0n9t2ts5ND6tZM1hoh+jKIJc6HPW2XTOKrM8Ra70NuKc092mzqntMNCqmQz5lLbVTgU5U07q69Kf4l9KxYNKwHT6Z2ObX4kBUzKIRZyYvrorchcHUWCq15itc/f9WJH6q0Lwo8IgTzy5/3w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=OlaSn1zC; arc=none smtp.client-ip=198.175.65.19 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="OlaSn1zC" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1788297491; x=1819833491; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=l53vH96oBxDrKf3F+DaJU5jUopwYKXsTsTUvDa/ClKc=; b=OlaSn1zCnWCqJJBnlphbCv7Nhe+XKA9FHZwV7lbamujWigaceTG8JuPc PVhDLp3BzOdbu5/mKTA+vcawngYAtushBjcy+lkfboOgMTG49LxM/Yb0I MZtdFoyiMEfk4d26vWYrroRSaIlTybZ+UreawnaMeSLXQjxZha6NuqjaL 4d7e/PbyoN+szeL1jVJa3RVfZdwJO9zowOqksx3+gYU7lAqhPVvRMRTGa kaTyVtY+qTH9/RMSmTO/Kls8esYZ0UosMcUE80oKRceJY7IojApRqv3WA ejxzAoCBYFsKgpoVOs14ovwSRoslwn2bhRUvDBbYrrSKMKJCe79aTiTtS w==; X-CSE-ConnectionGUID: LnWAgPDzTriOKMKan4h1Zg== X-CSE-MsgGUID: wAYC7ktcR1CEPMGdVFw6bg== X-IronPort-AV: E=McAfee;i="6800,10657,11893"; a="88670372" X-IronPort-AV: E=Sophos;i="6.25,256,1779174000"; d="scan'208";a="88670372" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa111.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 01 Sep 2026 14:18:06 -0700 X-CSE-ConnectionGUID: ByNxaF/ZQs+xLP/QDNWaVw== X-CSE-MsgGUID: ow28Or3cTdW7H6zJXvoGqQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,256,1779174000"; d="scan'208";a="267439757" Received: from anguy11-upstream.jf.intel.com ([10.166.9.133]) by orviesa006.jf.intel.com with ESMTP; 01 Sep 2026 14:18:05 -0700 From: Tony Nguyen To: davem@davemloft.net, kuba@kernel.org, pabeni@redhat.com, edumazet@google.com, andrew+netdev@lunn.ch, netdev@vger.kernel.org Cc: Kohei Enju , anthony.l.nguyen@intel.com, kohei.enju@gmail.com, enjuk@amazon.com, chris.packham@alliedtelesis.co.nz, przemyslaw.kitszel@intel.com, blair.steven@alliedtelesis.co.nz, carl.smith@alliedtelesis.co.nz, horms@kernel.org, maciej.fijalkowski@intel.com, magnus.karlsson@intel.com, ast@kernel.org, daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com, sdf@fomichev.me, bpf@vger.kernel.org, Aleksandr Loktionov , Patryk Holda Subject: [PATCH net-next 3/4] i40e: add support for bpf_xdp_metadata_rx_vlan_tag() Date: Tue, 1 Sep 2026 14:17:49 -0700 Message-ID: <20260901211752.1922993-4-anthony.l.nguyen@intel.com> X-Mailer: git-send-email 2.47.1 In-Reply-To: <20260901211752.1922993-1-anthony.l.nguyen@intel.com> References: <20260901211752.1922993-1-anthony.l.nguyen@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Kohei Enju Introduce i40e_xdp_rx_vlan_tag() which takes the same approach as i40e_process_skb_fields() to extract the VLAN tag from the RX descriptor. Tested with X710 adapter using xdp_hw_metadata, and confirmed that VLAN tags match between bpf_xdp_metadata_rx_vlan_tag() and skb->vlan_proto/vlan_tci. Signed-off-by: Kohei Enju Reviewed-by: Aleksandr Loktionov Tested-by: Patryk Holda Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/i40e/i40e_main.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index e487d697a634..719f45b5cb40 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -13607,8 +13607,27 @@ static int i40e_xdp_rx_hash(const struct xdp_md *_ctx, u32 *hash, return 0; } +static int i40e_xdp_rx_vlan_tag(const struct xdp_md *_ctx, __be16 *vlan_proto, + u16 *vlan_tci) +{ + const struct i40e_xdp_buff *ctx = (const void *)_ctx; + const union i40e_rx_desc *desc = ctx->desc; + u64 status; + + status = le64_to_cpu(desc->wb.qword1.status_error_len); + + if (!(status & BIT(I40E_RX_DESC_STATUS_L2TAG1P_SHIFT))) + return -ENODATA; + + *vlan_proto = cpu_to_be16(ETH_P_8021Q); + *vlan_tci = le16_to_cpu(desc->wb.qword0.lo_dword.l2tag1); + + return 0; +} + static const struct xdp_metadata_ops i40e_xdp_metadata_ops = { .xmo_rx_hash = i40e_xdp_rx_hash, + .xmo_rx_vlan_tag = i40e_xdp_rx_vlan_tag, }; static const struct net_device_ops i40e_netdev_ops = { -- 2.47.1