From patchwork Fri Feb 5 10:40:09 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Russell King (Oracle)" X-Patchwork-Id: 12069869 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 X-Spam-Level: X-Spam-Status: No, score=-13.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham 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 CECFBC433E0 for ; Fri, 5 Feb 2021 10:46:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8219764E39 for ; Fri, 5 Feb 2021 10:46:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231484AbhBEKpf (ORCPT ); Fri, 5 Feb 2021 05:45:35 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60498 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231476AbhBEKkw (ORCPT ); Fri, 5 Feb 2021 05:40:52 -0500 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [IPv6:2001:4d48:ad52:32c8:5054:ff:fe00:142]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0C935C0617AA for ; Fri, 5 Feb 2021 02:40:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Date:Sender:Message-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References: In-Reply-To:Reply-To: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=Qn2rgmzDuOrhSwmxRE/mJbcbohOyHkkBW5r8vUbcHDw=; b=NYy/MtlDWfYpzq46GYvyhNx23c p9owp8MWd8wBTh1jDMUTu5CLWp5xAkoNdzGFdBxIalZ5bs2eb2lpHnJEyV6PfQBxSvDAkisCRLFle ezFsGGIPqxghiEBPQ6TK9mqCvrQNyCNL6L1YNE6fj1iarmEMT3789EOzODBI+g+yArSxG/Nh+URS0 AL/yh7H49H72OB5ujTcSBSyzEP+NFY772M0kogdQnMqGyNfcQaqs8sOuf9bcR/1FbVi8oDvNik+Dq NzhCVVeB1UjZipJgYUSlx082p4e4cJkr0pzf7vOnIS8PlqG4nXewSRDX7SDcEfYBFHpCsZZ44Myqg L9vmL9pg==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:49114 helo=rmk-PC.armlinux.org.uk) by pandora.armlinux.org.uk with esmtpsa (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1l7yX3-0007ek-K9; Fri, 05 Feb 2021 10:40:09 +0000 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.92) (envelope-from ) id 1l7yX3-0006ob-E6; Fri, 05 Feb 2021 10:40:09 +0000 In-Reply-To: <20210205103859.GH1463@shell.armlinux.org.uk> References: <20210205103859.GH1463@shell.armlinux.org.uk> From: Russell King To: Ioana Ciornei , Ioana Radulescu Cc: "David S. Miller" , Jakub Kicinski , netdev@vger.kernel.org Subject: [PATCH net-next v2 3/3] net: dpaa2-mac: add backplane link mode support MIME-Version: 1.0 Content-Disposition: inline Message-Id: Sender: Russell King Date: Fri, 05 Feb 2021 10:40:09 +0000 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Add support for backplane link mode, which is, according to discussions with NXP earlier in the year, is a mode where the OS (Linux) is able to manage the PCS and Serdes itself. This commit prepares the ground work for allowing 1G fiber connections to be used with DPAA2 on the SolidRun CEX7 platforms. Signed-off-by: Russell King --- drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h | 4 +++- drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c | 5 +++-- 2 files changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h index c3d456c45102..9b6a89709ce1 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h @@ -695,7 +695,9 @@ static inline unsigned int dpaa2_eth_rx_head_room(struct dpaa2_eth_priv *priv) static inline bool dpaa2_eth_is_type_phy(struct dpaa2_eth_priv *priv) { - if (priv->mac && priv->mac->attr.link_type == DPMAC_LINK_TYPE_PHY) + if (priv->mac && + (priv->mac->attr.link_type == DPMAC_LINK_TYPE_PHY || + priv->mac->attr.link_type == DPMAC_LINK_TYPE_BACKPLANE)) return true; return false; diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c index 3ddfb40eb5e4..ccaf7e35abeb 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-mac.c @@ -315,8 +315,9 @@ int dpaa2_mac_connect(struct dpaa2_mac *mac) goto err_put_node; } - if (mac->attr.link_type == DPMAC_LINK_TYPE_PHY && - mac->attr.eth_if != DPMAC_ETH_IF_RGMII) { + if ((mac->attr.link_type == DPMAC_LINK_TYPE_PHY && + mac->attr.eth_if != DPMAC_ETH_IF_RGMII) || + mac->attr.link_type == DPMAC_LINK_TYPE_BACKPLANE) { err = dpaa2_pcs_create(mac, dpmac_node, mac->attr.id); if (err) goto err_put_node;