From patchwork Fri May 12 15:26:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Larysa Zaremba X-Patchwork-Id: 13239487 X-Patchwork-Delegate: bpf@iogearbox.net Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (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 34F132098B; Fri, 12 May 2023 15:29:16 +0000 (UTC) Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 791DC12A; Fri, 12 May 2023 08:29:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1683905343; x=1715441343; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Ca3C3CN5XD0jYqPpaEXrBQ6QBGcOSKPhdaJMaphgwXU=; b=PQh9pB89PXhnr1uNHS/rreEYL0FBokJLmKvrBgjlhncDlC2z61AUUpwo hETMj22BIRMaZoRbXstbrqM0cxWPmzJm/+eT1nynQK453xPwEeCbf8fjL i9UUZRV6IJc6vBPrTRYvMUwBD94SEzszvPkQ7aWB8qciq0gstUv97KjG0 43ZdytZWMlPyVdKeQyK7VkcwFVXSEy46y8xzldxQX4lIgOEi3g5vTDWa6 lsU7F31iiz2YvSI05aNuql4VhX/k96oGOS+4EAnYNjYGWnJBWIm6voii9 mxtPFCQrrGIADDWT+Um0PEVuHbi49NJMRdJog/b/w0bpt9jky44Tm8UlO w==; X-IronPort-AV: E=McAfee;i="6600,9927,10708"; a="349653405" X-IronPort-AV: E=Sophos;i="5.99,269,1677571200"; d="scan'208";a="349653405" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 May 2023 08:28:58 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10708"; a="1030124568" X-IronPort-AV: E=Sophos;i="5.99,269,1677571200"; d="scan'208";a="1030124568" Received: from irvmail002.ir.intel.com ([10.43.11.120]) by fmsmga005.fm.intel.com with ESMTP; 12 May 2023 08:28:54 -0700 Received: from lincoln.igk.intel.com (lincoln.igk.intel.com [10.102.21.235]) by irvmail002.ir.intel.com (Postfix) with ESMTP id 1EF1A35FB7; Fri, 12 May 2023 16:28:53 +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 RESEND bpf-next 10/15] ice: Implement VLAN tag hint Date: Fri, 12 May 2023 17:26:02 +0200 Message-Id: <20230512152607.992209-11-larysa.zaremba@intel.com> X-Mailer: git-send-email 2.35.3 In-Reply-To: <20230512152607.992209-1-larysa.zaremba@intel.com> References: <20230512152607.992209-1-larysa.zaremba@intel.com> Precedence: bulk X-Mailing-List: bpf@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_MED, SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: bpf@iogearbox.net Implement .xmo_rx_vlan_tag callback to allow XDP code to read packet's VLAN tag. Signed-off-by: Larysa Zaremba --- drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 44 +++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c index 1caa73644e7b..39547feb6106 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx_lib.c @@ -627,7 +627,51 @@ static int ice_xdp_rx_hash(const struct xdp_md *ctx, u32 *hash, return 0; } +/** + * ice_xdp_rx_ctag - VLAN tag XDP hint handler + * @ctx: XDP buff pointer + * @vlan_tag: destination address + * + * Copy VLAN tag (if was stripped) to the destination address. + */ +static int ice_xdp_rx_ctag(const struct xdp_md *ctx, u16 *vlan_tag) +{ + const struct ice_xdp_buff *xdp_ext = (void *)ctx; + netdev_features_t features; + + features = xdp_ext->rx_ring->netdev->features; + + if (!(features & NETIF_F_HW_VLAN_CTAG_RX)) + return -EINVAL; + + *vlan_tag = ice_get_vlan_tag_from_rx_desc(xdp_ext->eop_desc); + return 0; +} + +/** + * ice_xdp_rx_stag - VLAN s-tag XDP hint handler + * @ctx: XDP buff pointer + * @vlan_tag: destination address + * + * Copy VLAN s-tag (if was stripped) to the destination address. + */ +static int ice_xdp_rx_stag(const struct xdp_md *ctx, u16 *vlan_tag) +{ + const struct ice_xdp_buff *xdp_ext = (void *)ctx; + netdev_features_t features; + + features = xdp_ext->rx_ring->netdev->features; + + if (!(features & NETIF_F_HW_VLAN_STAG_RX)) + return -EINVAL; + + *vlan_tag = ice_get_vlan_tag_from_rx_desc(xdp_ext->eop_desc); + return 0; +} + const struct xdp_metadata_ops ice_xdp_md_ops = { .xmo_rx_timestamp = ice_xdp_rx_hw_ts, .xmo_rx_hash = ice_xdp_rx_hash, + .xmo_rx_ctag = ice_xdp_rx_ctag, + .xmo_rx_stag = ice_xdp_rx_stag, };