From patchwork Mon Mar 29 13:40:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ong Boon Leong X-Patchwork-Id: 12171069 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-17.0 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DEBEDC433C1 for ; Mon, 29 Mar 2021 22:35:22 +0000 (UTC) Received: from desiato.infradead.org (desiato.infradead.org [90.155.92.199]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 644F66191F for ; Mon, 29 Mar 2021 22:35:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 644F66191F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=desiato.20200630; h=Sender:Content-Transfer-Encoding :Content-Type:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:Cc:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=354W8BLVgDN6n+hNRPxRKsX+PGAjwlh6DHQ4Im283Bg=; b=qEuLuJquk2DzIF31gwj1U0DNh 8uWv7eVkfHdGR28fadzmwYozbwSr2TYw/1UhhzqiQ91CDEEaXFm3SUBLk3w5wV+XitsiVw0AttVv4 +ykGxnKZiRzhTJLK6XLbyT0zZ9YB5OKi7ZIu8SBce7uIOREULMJRcz2/rwtq6gaQO68lTxmyvzPQN CO9lseXbtQSIznwo0+wyx5FY+iKAmjPU+zZTbphDxZJmYM+zrtiHYm3Be5kUnQhrlvpWdh22adgLi gRi6H5Id9Bsq9+0fWZ+CmcHH6yWi+CJFpRbYDp4kjTs5SVTUeBHy/ZwlwB4EUUS6RC+NgRvVlyOg0 slUtAdx7g==; Received: from localhost ([::1] helo=desiato.infradead.org) by desiato.infradead.org with esmtp (Exim 4.94 #2 (Red Hat Linux)) id 1lR0Qc-001gYY-Sz; Mon, 29 Mar 2021 22:32:11 +0000 Received: from mga06.intel.com ([134.134.136.31]) by desiato.infradead.org with esmtps (Exim 4.94 #2 (Red Hat Linux)) id 1lQs4N-000gZh-05 for linux-arm-kernel@lists.infradead.org; Mon, 29 Mar 2021 13:36:41 +0000 IronPort-SDR: TvjMyQDTljN8lqUtqZwfmGGAHKC6DCG/+HM8oszaoqfbUXQEpuiMZQ80zoFOli2a+Fjd8kzLAQ SnCohDWeqp2g== X-IronPort-AV: E=McAfee;i="6000,8403,9938"; a="252895656" X-IronPort-AV: E=Sophos;i="5.81,287,1610438400"; d="scan'208";a="252895656" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 29 Mar 2021 06:36:32 -0700 IronPort-SDR: 9mq9iFMh9fjNGPZ+tbSSHXq3BiIR99BMTE3bxQ4VsL5Ao5enZwVn+YGLQ6/rJpHIzHRfPghxdG YbvcZaiHGznQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,287,1610438400"; d="scan'208";a="411079357" Received: from glass.png.intel.com ([10.158.65.59]) by fmsmga008.fm.intel.com with ESMTP; 29 Mar 2021 06:36:27 -0700 From: Ong Boon Leong To: Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S . Miller" , Jakub Kicinski , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend Cc: Maxime Coquelin , Andrii Nakryiko , Martin KaFai Lau , Song Liu , Yonghong Song , KP Singh , netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, Ong Boon Leong Subject: [PATCH net-next 2/6] net: stmmac: make SPH enable/disable to be configurable Date: Mon, 29 Mar 2021 21:40:09 +0800 Message-Id: <20210329134013.9516-3-boon.leong.ong@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210329134013.9516-1-boon.leong.ong@intel.com> References: <20210329134013.9516-1-boon.leong.ong@intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210329_143639_434389_A530BAE4 X-CRM114-Status: GOOD ( 13.02 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org SPH functionality splits header and payload according to split mode and offsef fields (SPLM and SPLOFST). It is beneficials for Linux network stack RX processing however it adds a lot of complexity in XDP processing. So, this patch makes the split-header (SPH) capability of the controller is stored in "priv->sph_cap" and the enabling/disabling of SPH is decided by "priv->sph". This is to prepare initial XDP enabling for stmmac to disable the use of SPH whenever XDP is enabled. Signed-off-by: Ong Boon Leong --- drivers/net/ethernet/stmicro/stmmac/stmmac.h | 1 + drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 12 +++++++----- 2 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h index 9966f6f10905..e293423f98c3 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h @@ -160,6 +160,7 @@ struct stmmac_priv { bool tx_path_in_lpi_mode; bool tso; int sph; + int sph_cap; u32 sarc_type; unsigned int dma_buf_sz; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index d34388b1ffcc..ace3c3835a9f 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -2858,6 +2858,7 @@ static int stmmac_hw_setup(struct net_device *dev, bool init_ptp) struct stmmac_priv *priv = netdev_priv(dev); u32 rx_cnt = priv->plat->rx_queues_to_use; u32 tx_cnt = priv->plat->tx_queues_to_use; + bool sph_en; u32 chan; int ret; @@ -2952,10 +2953,10 @@ static int stmmac_hw_setup(struct net_device *dev, bool init_ptp) } /* Enable Split Header */ - if (priv->sph && priv->hw->rx_csum) { - for (chan = 0; chan < rx_cnt; chan++) - stmmac_enable_sph(priv, priv->ioaddr, 1, chan); - } + sph_en = (priv->hw->rx_csum > 0) && priv->sph; + for (chan = 0; chan < rx_cnt; chan++) + stmmac_enable_sph(priv, priv->ioaddr, sph_en, chan); + /* VLAN Tag Insertion */ if (priv->dma_cap.vlins) @@ -5697,7 +5698,8 @@ int stmmac_dvr_probe(struct device *device, if (priv->dma_cap.sphen) { ndev->hw_features |= NETIF_F_GRO; - priv->sph = true; + priv->sph_cap = true; + priv->sph = priv->sph_cap; dev_info(priv->device, "SPH feature enabled\n"); }