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{ "id": 2212494, "url": "http://patchwork.ozlabs.org/api/covers/2212494/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/cover/20260318080737.3012293-1-aleksandr.loktionov@intel.com/", "project": { "id": 46, "url": "http://patchwork.ozlabs.org/api/projects/46/?format=api", "name": "Intel Wired Ethernet development", "link_name": "intel-wired-lan", "list_id": "intel-wired-lan.osuosl.org", "list_email": "intel-wired-lan@osuosl.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260318080737.3012293-1-aleksandr.loktionov@intel.com>", "list_archive_url": null, "date": "2026-03-18T08:07:34", "name": "[net-next,v1,0/2] virtchnl/ice: add IEEE 802.1ah (0x88E7) VLAN ethertype support", "submitter": { "id": 75597, "url": "http://patchwork.ozlabs.org/api/people/75597/?format=api", "name": "Loktionov, Aleksandr", "email": "aleksandr.loktionov@intel.com" }, "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/cover/20260318080737.3012293-1-aleksandr.loktionov@intel.com/mbox/", "series": [ { "id": 496412, "url": "http://patchwork.ozlabs.org/api/series/496412/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=496412", "date": "2026-03-18T08:07:35", "name": "virtchnl/ice: add IEEE 802.1ah (0x88E7) VLAN ethertype support", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/496412/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2212494/comments/", "headers": { "Return-Path": "<intel-wired-lan-bounces@osuosl.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=osuosl.org header.i=@osuosl.org header.a=rsa-sha256\n header.s=default header.b=oWu3elJg;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org\n (client-ip=2605:bc80:3010::138; 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envelope-from=intel-wired-lan-bounces@osuosl.org;\n receiver=<UNKNOWN> ", "DKIM-Filter": [ "OpenDKIM Filter v2.11.0 smtp1.osuosl.org 3BFBE837C4", "OpenDKIM Filter v2.11.0 smtp2.osuosl.org 5D61D40379" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=osuosl.org;\n\ts=default; t=1773821264;\n\tbh=mPPsXU2UPBWsf4isM0DBUHJ/i240RMOmr07qKmgECt8=;\n\th=From:To:Cc:Date:Subject:List-Id:List-Unsubscribe:List-Archive:\n\t List-Post:List-Help:List-Subscribe:From;\n\tb=oWu3elJgzJoRfdIbdKk/SAIbfCkEhh17XENhk8F99cved2SasJUdoj1Hj+ti4LfWF\n\t Zk+PtykqlumTN+AXaN+7EqlyOl8ctKA3++Zh15vT7jiF/3BINyTorLRU9AcKNWEPJG\n\t Dm3/YM93qeqg6BxuYJLx1qS1KLbdEQqnU75jjQiHC4OSQnGxpgVgLhHl80DlNOKb0m\n\t kHPI9H9W2RTVJvRsRSDI40vUJP6xYJPLGz3AAzUnm5w/mPlbzGqirOY1MIFEAd5tVA\n\t xw6U9kI7w7/m9E10TQozIXim4VTvEN5VIRIoSwgp15N0FLgJds/c5szokFnJKtHeWL\n\t N79zmHWxCR2ZA==", "Received-SPF": "Pass (mailfrom) identity=mailfrom; client-ip=198.175.65.19;\n helo=mgamail.intel.com; envelope-from=aleksandr.loktionov@intel.com;\n receiver=<UNKNOWN>", "DMARC-Filter": "OpenDMARC Filter v1.4.2 smtp2.osuosl.org 5D61D40379", "X-CSE-ConnectionGUID": [ "+rkj94ftSOeKarTupCgisA==", "2Op16dLKS82lmlB/t7murQ==" ], "X-CSE-MsgGUID": [ "WmeOAdMoTpWOQtTbqk4chw==", "IcmXUWE4SkyEN7qw+RC/Mw==" ], "X-IronPort-AV": [ "E=McAfee;i=\"6800,10657,11732\"; a=\"74755241\"", "E=Sophos;i=\"6.23,127,1770624000\"; d=\"scan'208\";a=\"74755241\"", "E=Sophos;i=\"6.23,127,1770624000\"; d=\"scan'208\";a=\"221628539\"" ], "X-ExtLoop1": "1", "From": "Aleksandr Loktionov <aleksandr.loktionov@intel.com>", "To": "intel-wired-lan@lists.osuosl.org, anthony.l.nguyen@intel.com,\n aleksandr.loktionov@intel.com", "Cc": "netdev@vger.kernel.org", "Date": "Wed, 18 Mar 2026 09:07:34 +0100", "Message-ID": "<20260318080737.3012293-1-aleksandr.loktionov@intel.com>", "X-Mailer": "git-send-email 2.52.0", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Mailman-Original-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/simple;\n d=intel.com; i=@intel.com; q=dns/txt; s=Intel;\n t=1773821261; x=1805357261;\n h=from:to:cc:subject:date:message-id:mime-version:\n content-transfer-encoding;\n bh=fdLI0Ko6mtrlnwt0ohoaLVU0GX5WeN1MsPSScgcpLXY=;\n b=NClK6VIcBg9d72aXQArimSfuhEwmgqUInUXxX8jeMrQBDYFvbeKdlYPu\n MRFgokW347NIOGB2rd1Vf0yjw/E+4cVYEpkcDDAjbEino6rBw/VNFvqz9\n Ocx5s2kVfYax/miXpPfYcsoo7SeTx/cX0dG5vI9hOAZxAO9jFd+hdVAAn\n g11Cn3YZESUlmy+A7bZ2nuruyWdPbwsfg69snZi2YR0zu/JxMAlAgpPe6\n U3MVp0jo7+8JDzz4kPm8tA9MZXVIjkYi3U9SeEgc2QlWPvuOUzyYh2xaY\n lRUNeVSOVwovTx6o0TPJhEyRTPXvRH3o7uO/3RGIST4Jgka8wP7ZgtSJR\n A==;", "X-Mailman-Original-Authentication-Results": [ "smtp2.osuosl.org;\n dmarc=pass (p=none dis=none)\n header.from=intel.com", "smtp2.osuosl.org;\n dkim=pass (2048-bit key,\n unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256\n header.s=Intel header.b=NClK6VIc" ], "Subject": "[Intel-wired-lan] [PATCH net-next v1 0/2] virtchnl/ice: add IEEE\n 802.1ah (0x88E7) VLAN ethertype support", "X-BeenThere": "intel-wired-lan@osuosl.org", "X-Mailman-Version": "2.1.30", "Precedence": "list", "List-Id": "Intel Wired Ethernet Linux Kernel Driver Development\n <intel-wired-lan.osuosl.org>", "List-Unsubscribe": "<https://lists.osuosl.org/mailman/options/intel-wired-lan>,\n <mailto:intel-wired-lan-request@osuosl.org?subject=unsubscribe>", "List-Archive": "<http://lists.osuosl.org/pipermail/intel-wired-lan/>", "List-Post": "<mailto:intel-wired-lan@osuosl.org>", "List-Help": "<mailto:intel-wired-lan-request@osuosl.org?subject=help>", "List-Subscribe": "<https://lists.osuosl.org/mailman/listinfo/intel-wired-lan>,\n <mailto:intel-wired-lan-request@osuosl.org?subject=subscribe>", "Errors-To": "intel-wired-lan-bounces@osuosl.org", "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>" }, "content": "IEEE 802.1ah (Provider Backbone Bridging) defines the Backbone Service\nTag (B-TAG) with ethertype 0x88E7. In environments that combine Provider\nBackbone Bridging with virtualisation, VFs may receive or transmit frames\ncarrying a B-TAG and need to install matching VLAN filters on the PF.\n\nThe existing virtchnl VLAN v2 capability handshake (via\nVIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS) has dedicated bitmask entries for\neach supported ethertype (0x8100, 0x88A8, 0x9100) but lacked one for\n0x88E7, making it impossible for a VF driver to advertise or negotiate\nB-TAG support.\n\nThis series adds the missing capability flag and wires up the three\nsoftware-path checks in the ice PF driver that guard VLAN filter\ninstallation:\n\n Patch 1 adds VIRTCHNL_VLAN_ETHERTYPE_88E7 = BIT(3) to the shared\n virtchnl_vlan_support enum in include/linux/avf/virtchnl.h.\n\n Patch 2 updates ice's TC TPID validation, VSI VLAN filter validation,\n and the bidirectional virtchnl VLAN v2 translation functions to\n accept/translate ETH_P_8021AH (0x88E7).\n\nNo hardware offload changes, no datapath modifications.\n\nTested on E810 with an iavf VF requesting 0x88E7-tagged VLAN filters:\n Verified that a TC flower rule matching on VLAN TPID 0x88E7 is now\n accepted and offloaded by the driver without returning -EINVAL:\n\n tc qdisc add dev $VF clsact\n tc filter add dev $VF ingress protocol 802.1Q flower \\\n vlan_ethtype 0x88e7 action pass\n # (previously: Error: Failed to offload TC filter - vlan_type was 0)\n\n Also verified VF transparent passthrough of triple-tagged frames with\n 0x88E7 as middle and innermost tag using scapy on a back-to-back E810\n pair (kernel 6.19.0-rc8+, FW 4.91, ICE Triple VLAN Comms DDP 1.3.88.88).\n\nAleksandr Loktionov (2):\n virtchnl: add VIRTCHNL_VLAN_ETHERTYPE_88E7 support\n ice: add 0x88E7 handling to SW validation paths\n\n drivers/net/ethernet/intel/ice/ice_tc_lib.c | 1 +\n drivers/net/ethernet/intel/ice/ice_vsi_vlan_lib.c | 3 ++-\n drivers/net/ethernet/intel/ice/virt/virtchnl.c | 6 ++++++\n include/linux/avf/virtchnl.h | 1 +\n 4 files changed, 10 insertions(+), 1 deletion(-)" }