From patchwork Thu Mar 30 12:08:39 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Felix Fietkau X-Patchwork-Id: 13194105 X-Patchwork-Delegate: kuba@kernel.org 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 2F3CBC761AF for ; Thu, 30 Mar 2023 12:08:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231402AbjC3MIr (ORCPT ); Thu, 30 Mar 2023 08:08:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41590 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231321AbjC3MIo (ORCPT ); Thu, 30 Mar 2023 08:08:44 -0400 Received: from nbd.name (nbd.name [46.4.11.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 07DF75240 for ; Thu, 30 Mar 2023 05:08:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=nbd.name; s=20160729; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:To:From:Sender:Reply-To:Cc:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=zh+HIIxPkDiG5NAfP3sUWNvjoPplvO8Cu8OWI/NfDXE=; b=pgLsmp384JbLYX1/FPHl69Onrq 09wU9mmH1dtNGv9hr/SrN40li14nu59LOFPN8KbuC95YQ/JqXN65Ly7qpQ8Eoneqs1SLAy8fbCQ6H 5UTvfCNcqwA49zy5s0hBokMToHwyNO5UwGWt5R1uFgItqVY4ntFkghoT3sHy7QKnmg90=; Received: from p54ae9730.dip0.t-ipconnect.de ([84.174.151.48] helo=Maecks.lan) by ds12 with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256 (Exim 4.94.2) (envelope-from ) id 1phr57-008WKJ-9e for netdev@vger.kernel.org; Thu, 30 Mar 2023 14:08:41 +0200 From: Felix Fietkau To: netdev@vger.kernel.org Subject: [PATCH net v2 2/3] net: ethernet: mtk_eth_soc: fix L2 offloading with DSA untag offload Date: Thu, 30 Mar 2023 14:08:39 +0200 Message-Id: <20230330120840.52079-2-nbd@nbd.name> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230330120840.52079-1-nbd@nbd.name> References: <20230330120840.52079-1-nbd@nbd.name> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Check for skb metadata in order to detect the case where the DSA header is not present. Fixes: 2d7605a72906 ("net: ethernet: mtk_eth_soc: enable hardware DSA untagging") Reviewed-by: Simon Horman Signed-off-by: Felix Fietkau Reviewed-by: Leon Romanovsky --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 6 +++--- drivers/net/ethernet/mediatek/mtk_ppe.c | 5 ++++- 2 files changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index 20d3e5ab1b2a..e14050e17862 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -2058,9 +2058,6 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget, skb_checksum_none_assert(skb); skb->protocol = eth_type_trans(skb, netdev); - if (reason == MTK_PPE_CPU_REASON_HIT_UNBIND_RATE_REACHED) - mtk_ppe_check_skb(eth->ppe[0], skb, hash); - if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX) { if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) { if (trxd.rxd3 & RX_DMA_VTAG_V2) { @@ -2088,6 +2085,9 @@ static int mtk_poll_rx(struct napi_struct *napi, int budget, __vlan_hwaccel_put_tag(skb, htons(vlan_proto), vlan_tci); } + if (reason == MTK_PPE_CPU_REASON_HIT_UNBIND_RATE_REACHED) + mtk_ppe_check_skb(eth->ppe[0], skb, hash); + skb_record_rx_queue(skb, 0); napi_gro_receive(napi, skb); diff --git a/drivers/net/ethernet/mediatek/mtk_ppe.c b/drivers/net/ethernet/mediatek/mtk_ppe.c index 6883eb34cd8b..a038b99ecbda 100644 --- a/drivers/net/ethernet/mediatek/mtk_ppe.c +++ b/drivers/net/ethernet/mediatek/mtk_ppe.c @@ -8,6 +8,7 @@ #include #include #include +#include #include #include "mtk_eth_soc.h" #include "mtk_ppe.h" @@ -699,7 +700,9 @@ void __mtk_ppe_check_skb(struct mtk_ppe *ppe, struct sk_buff *skb, u16 hash) skb->dev->dsa_ptr->tag_ops->proto != DSA_TAG_PROTO_MTK) goto out; - tag += 4; + if (!skb_metadata_dst(skb)) + tag += 4; + if (get_unaligned_be16(tag) != ETH_P_8021Q) break;