From patchwork Thu Jan 20 07:02:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?QmlhbyBIdWFuZyAo6buE5b2qKQ==?= X-Patchwork-Id: 12718310 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 2E4A8C433F5 for ; Thu, 20 Jan 2022 07:04:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; 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=1fMIlqGRIBs4miA3egTUjwRZztpGkNNfQFxDAVcUdrU=; b=cEV1DVaaLHSgKd /Yj0Tj9GhVR0OeQHCawp/Q7dgxqanbcZbmwvNW2nPxfuZJCQ9bcm2/aVL6hVwRlGAofA+dtg/AY+l R7Ode8RNjKc+HWiP+afvJCWfU0n6GNowqcgGaVpm/xr7OMX3uAMH7/JrbfV6qQLdri437YSDjiTED I5dbjgPdoyDW4DoX/flIh3dLWIRuw1J6MRp6Q1Z6kPq00C2mH9ROHiRUBEBsNiqlS7XNn7RwNtvXs LsRWitbBiZtKA6AinjstucFnTpiBuomT6l7jAQey+Hs5qQBvSTz4i5qLF0bV31mxkP+lzZ6+Yn1cJ docaaTNV9PXaD5dqVXHA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nARTD-009A42-GF; Thu, 20 Jan 2022 07:02:55 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nARSw-0099tF-0m; Thu, 20 Jan 2022 07:02:39 +0000 X-UUID: 5101d3095a51495bae50e6764e95ee23-20220120 X-UUID: 5101d3095a51495bae50e6764e95ee23-20220120 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 997352961; Thu, 20 Jan 2022 00:02:32 -0700 Received: from mtkmbs10n2.mediatek.inc (172.21.101.183) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 19 Jan 2022 23:02:32 -0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Thu, 20 Jan 2022 15:02:31 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 20 Jan 2022 15:02:29 +0800 From: Biao Huang To: David Miller , Rob Herring , Bartosz Golaszewski , Fabien Parent CC: Jakub Kicinski , Felix Fietkau , "John Crispin" , Sean Wang , Mark Lee , Matthias Brugger , , , , , , Biao Huang , Yinghua Pan , , Macpaul Lin Subject: [PATCH net-next v1 1/9] net: ethernet: mtk-star-emac: store bit_clk_div in compat structure Date: Thu, 20 Jan 2022 15:02:18 +0800 Message-ID: <20220120070226.1492-2-biao.huang@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220120070226.1492-1-biao.huang@mediatek.com> References: <20220120070226.1492-1-biao.huang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220119_230238_102037_DE66896E X-CRM114-Status: GOOD ( 16.00 ) 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 From: Fabien Parent Not all the SoC are using the same clock divider. Move the divider into a compat structure specific to the SoCs. Signed-off-by: Biao Huang Signed-off-by: Fabien Parent --- drivers/net/ethernet/mediatek/mtk_star_emac.c | 23 +++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_star_emac.c b/drivers/net/ethernet/mediatek/mtk_star_emac.c index 1d5dd2015453..26f5020f2e9c 100644 --- a/drivers/net/ethernet/mediatek/mtk_star_emac.c +++ b/drivers/net/ethernet/mediatek/mtk_star_emac.c @@ -17,6 +17,7 @@ #include #include #include +#include #include #include #include @@ -232,6 +233,10 @@ struct mtk_star_ring { unsigned int tail; }; +struct mtk_star_compat { + unsigned char bit_clk_div; +}; + struct mtk_star_priv { struct net_device *ndev; @@ -257,6 +262,8 @@ struct mtk_star_priv { int duplex; int pause; + const struct mtk_star_compat *compat_data; + /* Protects against concurrent descriptor access. */ spinlock_t lock; @@ -899,7 +906,7 @@ static void mtk_star_init_config(struct mtk_star_priv *priv) regmap_write(priv->regs, MTK_STAR_REG_SYS_CONF, val); regmap_update_bits(priv->regs, MTK_STAR_REG_MAC_CLK_CONF, MTK_STAR_MSK_MAC_CLK_CONF, - MTK_STAR_BIT_CLK_DIV_10); + priv->compat_data->bit_clk_div); } static void mtk_star_set_mode_rmii(struct mtk_star_priv *priv) @@ -1461,6 +1468,7 @@ static int mtk_star_probe(struct platform_device *pdev) priv = netdev_priv(ndev); priv->ndev = ndev; + priv->compat_data = of_device_get_match_data(&pdev->dev); SET_NETDEV_DEV(ndev, dev); platform_set_drvdata(pdev, ndev); @@ -1556,10 +1564,17 @@ static int mtk_star_probe(struct platform_device *pdev) return devm_register_netdev(dev, ndev); } +static struct mtk_star_compat mtk_star_mt8516_compat = { + .bit_clk_div = MTK_STAR_BIT_CLK_DIV_10, +}; + static const struct of_device_id mtk_star_of_match[] = { - { .compatible = "mediatek,mt8516-eth", }, - { .compatible = "mediatek,mt8518-eth", }, - { .compatible = "mediatek,mt8175-eth", }, + { .compatible = "mediatek,mt8516-eth", + .data = &mtk_star_mt8516_compat }, + { .compatible = "mediatek,mt8518-eth", + .data = &mtk_star_mt8516_compat }, + { .compatible = "mediatek,mt8175-eth", + .data = &mtk_star_mt8516_compat }, { } }; MODULE_DEVICE_TABLE(of, mtk_star_of_match); From patchwork Thu Jan 20 07:02:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?QmlhbyBIdWFuZyAo6buE5b2qKQ==?= X-Patchwork-Id: 12718309 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 1329BC433EF for ; Thu, 20 Jan 2022 07:04:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; 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; 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Thu, 20 Jan 2022 00:02:35 -0700 Received: from mtkmbs10n1.mediatek.inc (172.21.101.34) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 19 Jan 2022 23:02:33 -0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Thu, 20 Jan 2022 15:02:32 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 20 Jan 2022 15:02:31 +0800 From: Biao Huang To: David Miller , Rob Herring , Bartosz Golaszewski , Fabien Parent CC: Jakub Kicinski , Felix Fietkau , "John Crispin" , Sean Wang , Mark Lee , Matthias Brugger , , , , , , Biao Huang , Yinghua Pan , , Macpaul Lin Subject: [PATCH net-next v1 2/9] net: ethernet: mtk-star-emac: modify IRQ trigger flags Date: Thu, 20 Jan 2022 15:02:19 +0800 Message-ID: <20220120070226.1492-3-biao.huang@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220120070226.1492-1-biao.huang@mediatek.com> References: <20220120070226.1492-1-biao.huang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220119_230240_006840_367F2FC5 X-CRM114-Status: GOOD ( 12.44 ) 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 If the flags in request_irq() is IRQF_TRIGGER_NONE, the trigger method is determined by "interrupt" property in dts. So, modify the flag from IRQF_TRIGGER_FALLING to IRQF_TRIGGER_NONE. Signed-off-by: Biao Huang Signed-off-by: Yinghua Pan Reviewed-by: Bartosz Golaszewski --- drivers/net/ethernet/mediatek/mtk_star_emac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mediatek/mtk_star_emac.c b/drivers/net/ethernet/mediatek/mtk_star_emac.c index 26f5020f2e9c..7c2af775d601 100644 --- a/drivers/net/ethernet/mediatek/mtk_star_emac.c +++ b/drivers/net/ethernet/mediatek/mtk_star_emac.c @@ -959,7 +959,7 @@ static int mtk_star_enable(struct net_device *ndev) /* Request the interrupt */ ret = request_irq(ndev->irq, mtk_star_handle_irq, - IRQF_TRIGGER_FALLING, ndev->name, ndev); + IRQF_TRIGGER_NONE, ndev->name, ndev); if (ret) goto err_free_skbs; From patchwork Thu Jan 20 07:02:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?QmlhbyBIdWFuZyAo6buE5b2qKQ==?= X-Patchwork-Id: 12718311 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A5104C433F5 for ; Thu, 20 Jan 2022 07:04:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; 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=7ZHqeN9Zc7kOzMxdITmx5eMj+sb/zOfQLjcP/MgBTWc=; b=IskB+quU2yVGp3 RDcDMEz+g/ANFnDiZEYSzVVAjIEhfpXt2j8lqbS/un0gPi3I3UQ73ynZ5MpReTfd9jcZZcxfUIJV/ KsF4ZDhy9M0gzWBTDOaE+EAe3fTbQwyJvBlDsLnV5LN5Qwn/+TCRlga2wZG3pWvONhzpcqzmL2I6l DrPFImzp0a0US6zfxdTNsIZVMSK/SG2Jsy/7FX+LDCQ8Myfw9RafjiMKQTgFgMslpU1DMYZgEy6jJ dGPqDRtPZ6IEcXUzDYLExzm60Y7M4C9gLIG7E0jnpR7wRKRmyDTsdg/5T/o8B5igXO2XXsLmdc8H8 +8PP3VG1wIPLNVnzPDtA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nARTh-009AGZ-0b; Thu, 20 Jan 2022 07:03:25 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nARSx-0099uF-TS; Thu, 20 Jan 2022 07:02:41 +0000 X-UUID: 1f224d1b5ed84706b5dedacffe12ed51-20220120 X-UUID: 1f224d1b5ed84706b5dedacffe12ed51-20220120 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1591962325; Thu, 20 Jan 2022 00:02:35 -0700 Received: from mtkmbs10n1.mediatek.inc (172.21.101.34) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 19 Jan 2022 23:02:34 -0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Thu, 20 Jan 2022 15:02:33 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 20 Jan 2022 15:02:32 +0800 From: Biao Huang To: David Miller , Rob Herring , Bartosz Golaszewski , Fabien Parent CC: Jakub Kicinski , Felix Fietkau , "John Crispin" , Sean Wang , Mark Lee , Matthias Brugger , , , , , , Biao Huang , Yinghua Pan , , Macpaul Lin Subject: [PATCH net-next v1 3/9] net: ethernet: mtk-star-emac: add support for MT8365 SoC Date: Thu, 20 Jan 2022 15:02:20 +0800 Message-ID: <20220120070226.1492-4-biao.huang@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220120070226.1492-1-biao.huang@mediatek.com> References: <20220120070226.1492-1-biao.huang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220119_230239_996533_BF97A510 X-CRM114-Status: GOOD ( 20.48 ) 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 Add Ethernet driver support for MT8365 SoC. Signed-off-by: Biao Huang Signed-off-by: Yinghua Pan Signed-off-by: Fabien Parent --- drivers/net/ethernet/mediatek/mtk_star_emac.c | 75 ++++++++++++++++--- 1 file changed, 64 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_star_emac.c b/drivers/net/ethernet/mediatek/mtk_star_emac.c index 7c2af775d601..403439782db9 100644 --- a/drivers/net/ethernet/mediatek/mtk_star_emac.c +++ b/drivers/net/ethernet/mediatek/mtk_star_emac.c @@ -151,6 +151,7 @@ static const char *const mtk_star_clk_names[] = { "core", "reg", "trans" }; #define MTK_STAR_REG_MAC_CLK_CONF 0x00ac #define MTK_STAR_MSK_MAC_CLK_CONF GENMASK(7, 0) #define MTK_STAR_BIT_CLK_DIV_10 0x0a +#define MTK_STAR_BIT_CLK_DIV_50 0x32 /* Counter registers. */ #define MTK_STAR_REG_C_RXOKPKT 0x0100 @@ -183,9 +184,11 @@ static const char *const mtk_star_clk_names[] = { "core", "reg", "trans" }; #define MTK_STAR_REG_C_RX_TWIST 0x0218 /* Ethernet CFG Control */ -#define MTK_PERICFG_REG_NIC_CFG_CON 0x03c4 -#define MTK_PERICFG_MSK_NIC_CFG_CON_CFG_MII GENMASK(3, 0) -#define MTK_PERICFG_BIT_NIC_CFG_CON_RMII BIT(0) +#define MTK_PERICFG_REG_NIC_CFG0_CON 0x03c4 +#define MTK_PERICFG_REG_NIC_CFG1_CON 0x03c8 +#define MTK_PERICFG_REG_NIC_CFG_CON_V2 0x0c10 +#define MTK_PERICFG_REG_NIC_CFG_CON_CFG_INTF GENMASK(3, 0) +#define MTK_PERICFG_BIT_NIC_CFG_CON_RMII 1 /* Represents the actual structure of descriptors used by the MAC. We can * reuse the same structure for both TX and RX - the layout is the same, only @@ -234,6 +237,7 @@ struct mtk_star_ring { }; struct mtk_star_compat { + int (*set_interface_mode)(struct net_device *ndev); unsigned char bit_clk_div; }; @@ -909,13 +913,6 @@ static void mtk_star_init_config(struct mtk_star_priv *priv) priv->compat_data->bit_clk_div); } -static void mtk_star_set_mode_rmii(struct mtk_star_priv *priv) -{ - regmap_update_bits(priv->pericfg, MTK_PERICFG_REG_NIC_CFG_CON, - MTK_PERICFG_MSK_NIC_CFG_CON_CFG_MII, - MTK_PERICFG_BIT_NIC_CFG_CON_RMII); -} - static int mtk_star_enable(struct net_device *ndev) { struct mtk_star_priv *priv = netdev_priv(ndev); @@ -1531,7 +1528,13 @@ static int mtk_star_probe(struct platform_device *pdev) return -ENODEV; } - mtk_star_set_mode_rmii(priv); + if (priv->compat_data->set_interface_mode) { + ret = priv->compat_data->set_interface_mode(ndev); + if (ret) { + dev_err(dev, "Failed to set phy interface, err = %d\n", ret); + return -EINVAL; + } + } ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32)); if (ret) { @@ -1564,10 +1567,58 @@ static int mtk_star_probe(struct platform_device *pdev) return devm_register_netdev(dev, ndev); } +static int mt8516_set_interface_mode(struct net_device *ndev) +{ + struct mtk_star_priv *priv = netdev_priv(ndev); + struct device *dev = mtk_star_get_dev(priv); + unsigned int intf_val = 0; + + switch (priv->phy_intf) { + case PHY_INTERFACE_MODE_RMII: + intf_val = MTK_PERICFG_BIT_NIC_CFG_CON_RMII; + break; + default: + dev_err(dev, "This interface not supported\n"); + return -EINVAL; + } + + regmap_update_bits(priv->pericfg, MTK_PERICFG_REG_NIC_CFG0_CON, + MTK_PERICFG_REG_NIC_CFG_CON_CFG_INTF, + intf_val); + return 0; +} + +static int mt8365_set_interface_mode(struct net_device *ndev) +{ + struct mtk_star_priv *priv = netdev_priv(ndev); + struct device *dev = mtk_star_get_dev(priv); + unsigned int intf_val = 0; + + switch (priv->phy_intf) { + case PHY_INTERFACE_MODE_RMII: + intf_val = MTK_PERICFG_BIT_NIC_CFG_CON_RMII; + break; + default: + dev_err(dev, "This interface not supported\n"); + return -EINVAL; + } + + regmap_update_bits(priv->pericfg, MTK_PERICFG_REG_NIC_CFG_CON_V2, + MTK_PERICFG_REG_NIC_CFG_CON_CFG_INTF, + intf_val); + return 0; +} + static struct mtk_star_compat mtk_star_mt8516_compat = { + .set_interface_mode = mt8516_set_interface_mode, .bit_clk_div = MTK_STAR_BIT_CLK_DIV_10, }; +static struct mtk_star_compat mtk_star_mt8365_compat = { + .set_interface_mode = mt8365_set_interface_mode, + .bit_clk_div = MTK_STAR_BIT_CLK_DIV_50, +}; + static const struct of_device_id mtk_star_of_match[] = { { .compatible = "mediatek,mt8516-eth", .data = &mtk_star_mt8516_compat }, @@ -1575,6 +1626,8 @@ static const struct of_device_id mtk_star_of_match[] = { .data = &mtk_star_mt8516_compat }, { .compatible = "mediatek,mt8175-eth", .data = &mtk_star_mt8516_compat }, + { .compatible = "mediatek,mt8365-eth", + .data = &mtk_star_mt8365_compat }, { } }; MODULE_DEVICE_TABLE(of, mtk_star_of_match); From patchwork Thu Jan 20 07:02:21 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?QmlhbyBIdWFuZyAo6buE5b2qKQ==?= X-Patchwork-Id: 12718312 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C503CC433EF for ; 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Thu, 20 Jan 2022 15:02:33 +0800 From: Biao Huang To: David Miller , Rob Herring , Bartosz Golaszewski , Fabien Parent CC: Jakub Kicinski , Felix Fietkau , "John Crispin" , Sean Wang , Mark Lee , Matthias Brugger , , , , , , Biao Huang , Yinghua Pan , , Macpaul Lin Subject: [PATCH net-next v1 4/9] dt-bindings: net: mtk-star-emac: add support for MT8365 Date: Thu, 20 Jan 2022 15:02:21 +0800 Message-ID: <20220120070226.1492-5-biao.huang@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220120070226.1492-1-biao.huang@mediatek.com> References: <20220120070226.1492-1-biao.huang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220119_230241_477660_F1752D26 X-CRM114-Status: UNSURE ( 9.71 ) X-CRM114-Notice: Please train this message. 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 Add binding document for Ethernet on MT8365. Signed-off-by: Biao Huang Reviewed-by: Bartosz Golaszewski --- Documentation/devicetree/bindings/net/mediatek,star-emac.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/net/mediatek,star-emac.yaml b/Documentation/devicetree/bindings/net/mediatek,star-emac.yaml index e6a5ff208253..87a8b25b03a6 100644 --- a/Documentation/devicetree/bindings/net/mediatek,star-emac.yaml +++ b/Documentation/devicetree/bindings/net/mediatek,star-emac.yaml @@ -23,6 +23,7 @@ properties: - mediatek,mt8516-eth - mediatek,mt8518-eth - mediatek,mt8175-eth + - mediatek,mt8365-eth reg: maxItems: 1 From patchwork Thu Jan 20 07:02:22 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?QmlhbyBIdWFuZyAo6buE5b2qKQ==?= X-Patchwork-Id: 12718314 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id EEDFEC433EF for ; Thu, 20 Jan 2022 07:05:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; 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=tVAo4WBop950yPIbeOQEyZw+H+7OWl61VrxaTjpAuF8=; b=0la1Y1UOeu3Cr/ ul7qUq/CY7Z/R8QkUjWKAR5INesHVrqfkpSGmIsgBZl6QdsBF2PpuLtA4BO3ULMpkGP/ycpWrP2Uh uDsSb4bS4LVytGZE6UuR93N2dKSDBj2c8UzGN4xxdJlKNlnlpqShnW29o9/XyVZA5fH7fQuCZAnOn ehgxxyiE0v0g+2NEdkj848bgkmXcTe8KEcX0FcDF1LVaIb2E+hrtR39nkmpU6apuyh3nwoySqM+Lz x8k4EmWkFwB0ffVA8MYZgfjxcEExw1Zmdv7701KLBL8zJTa3J6WVX6q0SP6xgZMG8QaGdDRbN04pf eU9xJjQxN+yz3LLv0R5g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nARUj-009Ayf-Bp; Thu, 20 Jan 2022 07:04:29 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nARSz-0099uF-Q0; Thu, 20 Jan 2022 07:02:44 +0000 X-UUID: 818873d4ec56437dbceba8f05d37239e-20220120 X-UUID: 818873d4ec56437dbceba8f05d37239e-20220120 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 978976455; Thu, 20 Jan 2022 00:02:39 -0700 Received: from mtkmbs10n1.mediatek.inc (172.21.101.34) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 19 Jan 2022 23:02:37 -0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Thu, 20 Jan 2022 15:02:35 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 20 Jan 2022 15:02:34 +0800 From: Biao Huang To: David Miller , Rob Herring , Bartosz Golaszewski , Fabien Parent CC: Jakub Kicinski , Felix Fietkau , "John Crispin" , Sean Wang , Mark Lee , Matthias Brugger , , , , , , Biao Huang , Yinghua Pan , , Macpaul Lin Subject: [PATCH net-next v1 5/9] net: ethernet: mtk-star-emac: add clock pad selection for RMII Date: Thu, 20 Jan 2022 15:02:22 +0800 Message-ID: <20220120070226.1492-6-biao.huang@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220120070226.1492-1-biao.huang@mediatek.com> References: <20220120070226.1492-1-biao.huang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220119_230241_956503_E1C84866 X-CRM114-Status: GOOD ( 18.31 ) 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 This patch add a new dts property named "mediatek,rmii-rxc" parsing in driver, which will configure MAC to select which pin the RMII reference clock is connected to, TXC or RXC. TXC pad is the default reference clock pin. If user wants to use RXC pad instead, add "mediatek,rmii-rxc" to corresponding device node. Signed-off-by: Biao Huang Signed-off-by: Yinghua Pan --- drivers/net/ethernet/mediatek/mtk_star_emac.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_star_emac.c b/drivers/net/ethernet/mediatek/mtk_star_emac.c index 403439782db9..ab2fe72fdd6a 100644 --- a/drivers/net/ethernet/mediatek/mtk_star_emac.c +++ b/drivers/net/ethernet/mediatek/mtk_star_emac.c @@ -189,6 +189,8 @@ static const char *const mtk_star_clk_names[] = { "core", "reg", "trans" }; #define MTK_PERICFG_REG_NIC_CFG_CON_V2 0x0c10 #define MTK_PERICFG_REG_NIC_CFG_CON_CFG_INTF GENMASK(3, 0) #define MTK_PERICFG_BIT_NIC_CFG_CON_RMII 1 +#define MTK_PERICFG_BIT_NIC_CFG_CON_CLK BIT(0) +#define MTK_PERICFG_BIT_NIC_CFG_CON_CLK_V2 BIT(8) /* Represents the actual structure of descriptors used by the MAC. We can * reuse the same structure for both TX and RX - the layout is the same, only @@ -265,6 +267,7 @@ struct mtk_star_priv { int speed; int duplex; int pause; + bool rmii_rxc; const struct mtk_star_compat *compat_data; @@ -1528,6 +1531,8 @@ static int mtk_star_probe(struct platform_device *pdev) return -ENODEV; } + priv->rmii_rxc = of_property_read_bool(of_node, "mediatek,rmii-rxc"); + if (priv->compat_data->set_interface_mode) { ret = priv->compat_data->set_interface_mode(ndev); if (ret) { @@ -1571,17 +1576,21 @@ static int mt8516_set_interface_mode(struct net_device *ndev) { struct mtk_star_priv *priv = netdev_priv(ndev); struct device *dev = mtk_star_get_dev(priv); - unsigned int intf_val = 0; + unsigned int intf_val = 0, rmii_rxc = 0; switch (priv->phy_intf) { case PHY_INTERFACE_MODE_RMII: intf_val = MTK_PERICFG_BIT_NIC_CFG_CON_RMII; + rmii_rxc = priv->rmii_rxc ? 0 : MTK_PERICFG_BIT_NIC_CFG_CON_CLK; break; default: dev_err(dev, "This interface not supported\n"); return -EINVAL; } + regmap_update_bits(priv->pericfg, MTK_PERICFG_REG_NIC_CFG1_CON, + MTK_PERICFG_BIT_NIC_CFG_CON_CLK, + rmii_rxc); regmap_update_bits(priv->pericfg, MTK_PERICFG_REG_NIC_CFG0_CON, MTK_PERICFG_REG_NIC_CFG_CON_CFG_INTF, intf_val); @@ -1597,6 +1606,7 @@ static int mt8365_set_interface_mode(struct net_device *ndev) switch (priv->phy_intf) { case PHY_INTERFACE_MODE_RMII: intf_val = MTK_PERICFG_BIT_NIC_CFG_CON_RMII; + intf_val |= priv->rmii_rxc ? 0 : MTK_PERICFG_BIT_NIC_CFG_CON_CLK_V2; break; default: dev_err(dev, "This interface not supported\n"); @@ -1604,7 +1614,8 @@ static int mt8365_set_interface_mode(struct net_device *ndev) } regmap_update_bits(priv->pericfg, MTK_PERICFG_REG_NIC_CFG_CON_V2, - MTK_PERICFG_REG_NIC_CFG_CON_CFG_INTF, + MTK_PERICFG_REG_NIC_CFG_CON_CFG_INTF | + MTK_PERICFG_BIT_NIC_CFG_CON_CLK_V2, intf_val); return 0; } From patchwork Thu Jan 20 07:02:23 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?QmlhbyBIdWFuZyAo6buE5b2qKQ==?= X-Patchwork-Id: 12718313 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id BEE9CC433EF for ; Thu, 20 Jan 2022 07:05:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; 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=CX8jZP6JFcrNf+V+BfyZ1RQdkb+r/ymDnV7IWyhnJsw=; b=CETEkMb+3sCFYA opTWZRpB1Yoz1qTV+x6+GWgNrKDBBU96/+GQruTzxHS2RL0UPnRrBV3yuuKMc7YJCxpPqnQgAFU47 4fE2p0uOjqLdvWR3Z7OjOKD4lTpiZ4wjmGvtVicTuiLJFfhs4fMda5dUzfmKumCKSLHynkJDpt/lN OSNFXm/y4hDgs4tNboUREJKeSQGb/g1nYug8ayPkQelinYIpxG47ogF6QT79qIzx7o/uE/FmNyQEQ 3LDKCKhlT+eZKXeC4/UXIkPGEOw3haWLFFpY5LI1sjmjxAptj+51YEJtN6uuXOCDZIN9a2C6XW01S yBrtSRbzQ6u92Ps65Wsw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nARUJ-009AcX-P9; Thu, 20 Jan 2022 07:04:04 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nARSz-0099wB-KY; Thu, 20 Jan 2022 07:02:43 +0000 X-UUID: fe36aa7dc58344f98bdb686f73cfc579-20220120 X-UUID: fe36aa7dc58344f98bdb686f73cfc579-20220120 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 1031752554; Thu, 20 Jan 2022 00:02:39 -0700 Received: from mtkmbs10n2.mediatek.inc (172.21.101.183) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 19 Jan 2022 23:02:38 -0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Thu, 20 Jan 2022 15:02:36 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 20 Jan 2022 15:02:35 +0800 From: Biao Huang To: David Miller , Rob Herring , Bartosz Golaszewski , Fabien Parent CC: Jakub Kicinski , Felix Fietkau , "John Crispin" , Sean Wang , Mark Lee , Matthias Brugger , , , , , , Biao Huang , Yinghua Pan , , Macpaul Lin Subject: [PATCH net-next v1 6/9] net: ethernet: mtk-star-emac: add timing adjustment support Date: Thu, 20 Jan 2022 15:02:23 +0800 Message-ID: <20220120070226.1492-7-biao.huang@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220120070226.1492-1-biao.huang@mediatek.com> References: <20220120070226.1492-1-biao.huang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220119_230241_814652_6558139C X-CRM114-Status: GOOD ( 15.75 ) 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 Add simple clock inversion for timing adjustment in driver. Add property "mediatek,txc-inverse" or "mediatek,rxc-inverse" to device node when necessary. Signed-off-by: Biao Huang Signed-off-by: Yinghua Pan --- drivers/net/ethernet/mediatek/mtk_star_emac.c | 34 +++++++++++++++++++ 1 file changed, 34 insertions(+) diff --git a/drivers/net/ethernet/mediatek/mtk_star_emac.c b/drivers/net/ethernet/mediatek/mtk_star_emac.c index ab2fe72fdd6a..e37fa2cb5433 100644 --- a/drivers/net/ethernet/mediatek/mtk_star_emac.c +++ b/drivers/net/ethernet/mediatek/mtk_star_emac.c @@ -131,6 +131,11 @@ static const char *const mtk_star_clk_names[] = { "core", "reg", "trans" }; #define MTK_STAR_REG_INT_MASK 0x0054 #define MTK_STAR_BIT_INT_MASK_FNRC BIT(6) +/* Delay-Macro Register */ +#define MTK_STAR_REG_TEST0 0x0058 +#define MTK_STAR_BIT_INV_RX_CLK BIT(30) +#define MTK_STAR_BIT_INV_TX_CLK BIT(31) + /* Misc. Config Register */ #define MTK_STAR_REG_TEST1 0x005c #define MTK_STAR_BIT_TEST1_RST_HASH_MBIST BIT(31) @@ -268,6 +273,8 @@ struct mtk_star_priv { int duplex; int pause; bool rmii_rxc; + bool rx_inv; + bool tx_inv; const struct mtk_star_compat *compat_data; @@ -1450,6 +1457,25 @@ static void mtk_star_clk_disable_unprepare(void *data) clk_bulk_disable_unprepare(MTK_STAR_NCLKS, priv->clks); } +static int mtk_star_set_timing(struct mtk_star_priv *priv) +{ + struct device *dev = mtk_star_get_dev(priv); + unsigned int delay_val = 0; + + switch (priv->phy_intf) { + case PHY_INTERFACE_MODE_RMII: + delay_val |= FIELD_PREP(MTK_STAR_BIT_INV_RX_CLK, priv->rx_inv); + delay_val |= FIELD_PREP(MTK_STAR_BIT_INV_TX_CLK, priv->tx_inv); + break; + default: + dev_err(dev, "This interface not supported\n"); + return -EINVAL; + } + + regmap_write(priv->regs, MTK_STAR_REG_TEST0, delay_val); + + return 0; +} static int mtk_star_probe(struct platform_device *pdev) { struct device_node *of_node; @@ -1532,6 +1558,8 @@ static int mtk_star_probe(struct platform_device *pdev) } priv->rmii_rxc = of_property_read_bool(of_node, "mediatek,rmii-rxc"); + priv->rx_inv = of_property_read_bool(of_node, "mediatek,rxc-inverse"); + priv->tx_inv = of_property_read_bool(of_node, "mediatek,txc-inverse"); if (priv->compat_data->set_interface_mode) { ret = priv->compat_data->set_interface_mode(ndev); @@ -1541,6 +1569,12 @@ static int mtk_star_probe(struct platform_device *pdev) } } + ret = mtk_star_set_timing(priv); + if (ret) { + dev_err(dev, "Failed to set timing, err = %d\n", ret); + return -EINVAL; + } + ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32)); if (ret) { dev_err(dev, "unsupported DMA mask\n"); From patchwork Thu Jan 20 07:02:24 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?QmlhbyBIdWFuZyAo6buE5b2qKQ==?= X-Patchwork-Id: 12718316 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7D217C433F5 for ; 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Thu, 20 Jan 2022 15:02:36 +0800 From: Biao Huang To: David Miller , Rob Herring , Bartosz Golaszewski , Fabien Parent CC: Jakub Kicinski , Felix Fietkau , "John Crispin" , Sean Wang , Mark Lee , Matthias Brugger , , , , , , Biao Huang , Yinghua Pan , , Macpaul Lin Subject: [PATCH net-next v1 7/9] dt-bindings: net: mtk-star-emac: add description for new properties Date: Thu, 20 Jan 2022 15:02:24 +0800 Message-ID: <20220120070226.1492-8-biao.huang@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220120070226.1492-1-biao.huang@mediatek.com> References: <20220120070226.1492-1-biao.huang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220119_230245_639327_C83B6C56 X-CRM114-Status: GOOD ( 10.73 ) 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 Add description for new properties which will be parsed in driver. Signed-off-by: Biao Huang --- .../bindings/net/mediatek,star-emac.yaml | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/Documentation/devicetree/bindings/net/mediatek,star-emac.yaml b/Documentation/devicetree/bindings/net/mediatek,star-emac.yaml index 87a8b25b03a6..41b1b1dd562c 100644 --- a/Documentation/devicetree/bindings/net/mediatek,star-emac.yaml +++ b/Documentation/devicetree/bindings/net/mediatek,star-emac.yaml @@ -48,6 +48,22 @@ properties: Phandle to the device containing the PERICFG register range. This is used to control the MII mode. + mediatek,rmii-rxc: + type: boolean + description: + If present, indicates that the RMII reference clock, which is from external + PHYs, is connected to RXC pin. Otherwise, is connected to TXC pin. + + mediatek,rxc-inverse: + type: boolean + description: + If present, indicates that clock on RXC pad will be inversed. + + mediatek,txc-inverse: + type: boolean + description: + If present, indicates that clock on TXC pad will be inversed. + mdio: type: object description: From patchwork Thu Jan 20 07:02:25 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?QmlhbyBIdWFuZyAo6buE5b2qKQ==?= X-Patchwork-Id: 12718315 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B2A12C433F5 for ; Thu, 20 Jan 2022 07:06:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; 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=YThBU4zLMv/njYyKhOCzLEJuTU2naHOV2YQmc9Exdus=; b=pSoSTxrdjYjMfi DF7fMS7sLvTn+aIVfUXFzLGeK6lIE8kXipI5Mbd0nsDdm+YTdTVVoime4ZcCcC3kqwf1P2ljn3nVU mxtH0dmswVDszqkHkRCVcF3vxyZF7dJg1rG8t9hPy+w66Du1Q+21RVIfGAiwx4OJLRyQj4Nmatf2P +17C40IM3R0LbyWsoBLZZ0QqQH3fzCnctD4lKAAJ5H80kvM8uy4COVOs4fVGnXTmf4OkSNl19oeLp w1bq01AB+jLxoqFKd6XjwnkuW4U0iwCGpSB967UcyVLjv2eKnyAaCYQ5S2E2JrdjB6V9FSTUvP2e4 NkTc7N7A5hroedw6ZZiQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nARV9-009BIq-GK; Thu, 20 Jan 2022 07:04:55 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nART2-0099yG-HU; Thu, 20 Jan 2022 07:02:46 +0000 X-UUID: dc7b06bc08a441bd8a05b2c9876a2eee-20220120 X-UUID: dc7b06bc08a441bd8a05b2c9876a2eee-20220120 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 508796714; Thu, 20 Jan 2022 00:02:42 -0700 Received: from mtkmbs10n2.mediatek.inc (172.21.101.183) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 19 Jan 2022 23:02:41 -0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs10n2.mediatek.inc (172.21.101.183) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.3; Thu, 20 Jan 2022 15:02:38 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 20 Jan 2022 15:02:37 +0800 From: Biao Huang To: David Miller , Rob Herring , Bartosz Golaszewski , Fabien Parent CC: Jakub Kicinski , Felix Fietkau , "John Crispin" , Sean Wang , Mark Lee , Matthias Brugger , , , , , , Biao Huang , Yinghua Pan , , Macpaul Lin Subject: [PATCH net-next v1 8/9] net: ethernet: mtk-star-emac: add support for MII interface Date: Thu, 20 Jan 2022 15:02:25 +0800 Message-ID: <20220120070226.1492-9-biao.huang@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220120070226.1492-1-biao.huang@mediatek.com> References: <20220120070226.1492-1-biao.huang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220119_230244_648371_22F047F8 X-CRM114-Status: GOOD ( 14.49 ) 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 Add support for MII interface. If user wants to use MII, assign "MII" to "phy-mode" property in dts. Signed-off-by: Biao Huang Signed-off-by: Yinghua Pan --- drivers/net/ethernet/mediatek/mtk_star_emac.c | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mediatek/mtk_star_emac.c b/drivers/net/ethernet/mediatek/mtk_star_emac.c index e37fa2cb5433..08a372848651 100644 --- a/drivers/net/ethernet/mediatek/mtk_star_emac.c +++ b/drivers/net/ethernet/mediatek/mtk_star_emac.c @@ -193,6 +193,7 @@ static const char *const mtk_star_clk_names[] = { "core", "reg", "trans" }; #define MTK_PERICFG_REG_NIC_CFG1_CON 0x03c8 #define MTK_PERICFG_REG_NIC_CFG_CON_V2 0x0c10 #define MTK_PERICFG_REG_NIC_CFG_CON_CFG_INTF GENMASK(3, 0) +#define MTK_PERICFG_BIT_NIC_CFG_CON_MII 0 #define MTK_PERICFG_BIT_NIC_CFG_CON_RMII 1 #define MTK_PERICFG_BIT_NIC_CFG_CON_CLK BIT(0) #define MTK_PERICFG_BIT_NIC_CFG_CON_CLK_V2 BIT(8) @@ -1463,6 +1464,7 @@ static int mtk_star_set_timing(struct mtk_star_priv *priv) unsigned int delay_val = 0; switch (priv->phy_intf) { + case PHY_INTERFACE_MODE_MII: case PHY_INTERFACE_MODE_RMII: delay_val |= FIELD_PREP(MTK_STAR_BIT_INV_RX_CLK, priv->rx_inv); delay_val |= FIELD_PREP(MTK_STAR_BIT_INV_TX_CLK, priv->tx_inv); @@ -1545,7 +1547,8 @@ static int mtk_star_probe(struct platform_device *pdev) ret = of_get_phy_mode(of_node, &priv->phy_intf); if (ret) { return ret; - } else if (priv->phy_intf != PHY_INTERFACE_MODE_RMII) { + } else if (priv->phy_intf != PHY_INTERFACE_MODE_RMII && + priv->phy_intf != PHY_INTERFACE_MODE_MII) { dev_err(dev, "unsupported phy mode: %s\n", phy_modes(priv->phy_intf)); return -EINVAL; @@ -1613,6 +1616,9 @@ static int mt8516_set_interface_mode(struct net_device *ndev) unsigned int intf_val = 0, rmii_rxc = 0; switch (priv->phy_intf) { + case PHY_INTERFACE_MODE_MII: + intf_val = MTK_PERICFG_BIT_NIC_CFG_CON_MII; + break; case PHY_INTERFACE_MODE_RMII: intf_val = MTK_PERICFG_BIT_NIC_CFG_CON_RMII; rmii_rxc = priv->rmii_rxc ? 0 : MTK_PERICFG_BIT_NIC_CFG_CON_CLK; @@ -1638,6 +1644,9 @@ static int mt8365_set_interface_mode(struct net_device *ndev) unsigned int intf_val = 0; switch (priv->phy_intf) { + case PHY_INTERFACE_MODE_MII: + intf_val = MTK_PERICFG_BIT_NIC_CFG_CON_MII; + break; case PHY_INTERFACE_MODE_RMII: intf_val = MTK_PERICFG_BIT_NIC_CFG_CON_RMII; intf_val |= priv->rmii_rxc ? 0 : MTK_PERICFG_BIT_NIC_CFG_CON_CLK_V2; From patchwork Thu Jan 20 07:02:26 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?QmlhbyBIdWFuZyAo6buE5b2qKQ==?= X-Patchwork-Id: 12718317 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id AA86EC433FE for ; Thu, 20 Jan 2022 07:07:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; 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=4AvuzRnArUxLpoZzf+Zuhc6v1BcQhXNM4rUWCBa/xyY=; b=VYggsM15D9GJnW IosolxV16PhCFmH1H8F3a+YFrUw141b/fZbdqMAEqVaWEJelDN23BQ2gneiRLbv90HZ0t92rBY5QY Mcht8lDxPebJ61DbW4AOld6kt/0JPbDk5+6g4rZtg7voI8FFzA7kXoHnkv8iMa/UttfekXkm7T1c5 3hCldvEmDquYehg8FQe7UuBcKwszJmxeNJt3j2xJw8ZtgD5XLRIUJrT9L0g6V1ghvpS3BUbItvDrR /oiAVA993UESpznF19HYM89Ty3+IVGvHQHFK5/N7XD60sZ7BhX/Web4JTgrN+dZg8MxpfRrJYtsSt gq7MwSjoBxYA7Wc+lzAQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nARW3-009Bs6-LT; Thu, 20 Jan 2022 07:05:51 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nART5-0099zS-9l; Thu, 20 Jan 2022 07:02:49 +0000 X-UUID: 7dfa6c04f6d84955ab5695e076e91adb-20220120 X-UUID: 7dfa6c04f6d84955ab5695e076e91adb-20220120 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 572898670; Thu, 20 Jan 2022 00:02:43 -0700 Received: from mtkmbs10n1.mediatek.inc (172.21.101.34) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Wed, 19 Jan 2022 23:02:42 -0800 Received: from mtkcas11.mediatek.inc (172.21.101.40) by mtkmbs10n1.mediatek.inc (172.21.101.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.792.15; Thu, 20 Jan 2022 15:02:39 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkcas11.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 20 Jan 2022 15:02:38 +0800 From: Biao Huang To: David Miller , Rob Herring , Bartosz Golaszewski , Fabien Parent CC: Jakub Kicinski , Felix Fietkau , "John Crispin" , Sean Wang , Mark Lee , Matthias Brugger , , , , , , Biao Huang , Yinghua Pan , , Macpaul Lin Subject: [PATCH net-next v1 9/9] net: ethernet: mtk-star-emac: separate tx/rx handling with two NAPIs Date: Thu, 20 Jan 2022 15:02:26 +0800 Message-ID: <20220120070226.1492-10-biao.huang@mediatek.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220120070226.1492-1-biao.huang@mediatek.com> References: <20220120070226.1492-1-biao.huang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220119_230247_393277_E3C9117D X-CRM114-Status: GOOD ( 26.79 ) 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 Current driver may lost tx interrupts under bidirectional test with iperf3, which leads to some unexpected issues. This patch let rx/tx interrupt enable/disable separately, and rx/tx are handled in different NAPIs. Signed-off-by: Biao Huang Signed-off-by: Yinghua Pan --- drivers/net/ethernet/mediatek/mtk_star_emac.c | 317 ++++++++++-------- 1 file changed, 181 insertions(+), 136 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_star_emac.c b/drivers/net/ethernet/mediatek/mtk_star_emac.c index 08a372848651..c46e05bfd8a5 100644 --- a/drivers/net/ethernet/mediatek/mtk_star_emac.c +++ b/drivers/net/ethernet/mediatek/mtk_star_emac.c @@ -229,7 +229,7 @@ struct mtk_star_ring_desc_data { struct sk_buff *skb; }; -#define MTK_STAR_RING_NUM_DESCS 128 +#define MTK_STAR_RING_NUM_DESCS 512 #define MTK_STAR_NUM_TX_DESCS MTK_STAR_RING_NUM_DESCS #define MTK_STAR_NUM_RX_DESCS MTK_STAR_RING_NUM_DESCS #define MTK_STAR_NUM_DESCS_TOTAL (MTK_STAR_RING_NUM_DESCS * 2) @@ -264,7 +264,8 @@ struct mtk_star_priv { struct mtk_star_ring rx_ring; struct mii_bus *mii; - struct napi_struct napi; + struct napi_struct tx_napi; + struct napi_struct rx_napi; struct device_node *phy_node; phy_interface_t phy_intf; @@ -380,19 +381,16 @@ mtk_star_ring_push_head_tx(struct mtk_star_ring *ring, mtk_star_ring_push_head(ring, desc_data, flags); } -static unsigned int mtk_star_ring_num_used_descs(struct mtk_star_ring *ring) +static unsigned int mtk_star_tx_ring_avail(struct mtk_star_ring *ring) { - return abs(ring->head - ring->tail); -} + u32 avail; -static bool mtk_star_ring_full(struct mtk_star_ring *ring) -{ - return mtk_star_ring_num_used_descs(ring) == MTK_STAR_RING_NUM_DESCS; -} + if (ring->tail > ring->head) + avail = ring->tail - ring->head - 1; + else + avail = MTK_STAR_RING_NUM_DESCS - ring->head + ring->tail - 1; -static bool mtk_star_ring_descs_available(struct mtk_star_ring *ring) -{ - return mtk_star_ring_num_used_descs(ring) > 0; + return avail; } static dma_addr_t mtk_star_dma_map_rx(struct mtk_star_priv *priv, @@ -415,7 +413,7 @@ static void mtk_star_dma_unmap_rx(struct mtk_star_priv *priv, } static dma_addr_t mtk_star_dma_map_tx(struct mtk_star_priv *priv, - struct sk_buff *skb) + struct sk_buff *skb) { struct device *dev = mtk_star_get_dev(priv); @@ -437,6 +435,36 @@ static void mtk_star_nic_disable_pd(struct mtk_star_priv *priv) MTK_STAR_BIT_MAC_CFG_NIC_PD); } +static void mtk_star_enable_dma_irq(struct mtk_star_priv *priv, + bool rx, bool tx) +{ + u32 value; + + regmap_read(priv->regs, MTK_STAR_REG_INT_MASK, &value); + + if (tx) + value &= ~MTK_STAR_BIT_INT_STS_TNTC; + if (rx) + value &= ~MTK_STAR_BIT_INT_STS_FNRC; + + regmap_write(priv->regs, MTK_STAR_REG_INT_MASK, value); +} + +static void mtk_star_disable_dma_irq(struct mtk_star_priv *priv, + bool rx, bool tx) +{ + u32 value; + + regmap_read(priv->regs, MTK_STAR_REG_INT_MASK, &value); + + if (tx) + value |= MTK_STAR_BIT_INT_STS_TNTC; + if (rx) + value |= MTK_STAR_BIT_INT_STS_FNRC; + + regmap_write(priv->regs, MTK_STAR_REG_INT_MASK, value); +} + /* Unmask the three interrupts we care about, mask all others. */ static void mtk_star_intr_enable(struct mtk_star_priv *priv) { @@ -452,20 +480,11 @@ static void mtk_star_intr_disable(struct mtk_star_priv *priv) regmap_write(priv->regs, MTK_STAR_REG_INT_MASK, ~0); } -static unsigned int mtk_star_intr_read(struct mtk_star_priv *priv) -{ - unsigned int val; - - regmap_read(priv->regs, MTK_STAR_REG_INT_STS, &val); - - return val; -} - static unsigned int mtk_star_intr_ack_all(struct mtk_star_priv *priv) { unsigned int val; - val = mtk_star_intr_read(priv); + regmap_read(priv->regs, MTK_STAR_REG_INT_STS, &val); regmap_write(priv->regs, MTK_STAR_REG_INT_STS, val); return val; @@ -737,25 +756,46 @@ static void mtk_star_free_tx_skbs(struct mtk_star_priv *priv) mtk_star_ring_free_skbs(priv, ring, mtk_star_dma_unmap_tx); } -/* All processing for TX and RX happens in the napi poll callback. - * - * FIXME: The interrupt handling should be more fine-grained with each - * interrupt enabled/disabled independently when needed. Unfortunatly this - * turned out to impact the driver's stability and until we have something - * working properly, we're disabling all interrupts during TX & RX processing - * or when resetting the counter registers. +/* mtk_star_handle_irq - Interrupt Handler. + * @irq: interrupt number. + * @data: pointer to a network interface device structure. + * Description : this is the driver interrupt service routine. + * it mainly handles: + * 1. tx complete interrupt for frame transmission. + * 2. rx complete interrupt for frame reception. + * 3. MAC Management Counter interrupt to avoid counter overflow. */ static irqreturn_t mtk_star_handle_irq(int irq, void *data) { - struct mtk_star_priv *priv; - struct net_device *ndev; + struct net_device *ndev = data; + struct mtk_star_priv *priv = netdev_priv(ndev); + unsigned int intr_status = mtk_star_intr_ack_all(priv); + unsigned long flags = 0; + + if (intr_status & MTK_STAR_BIT_INT_STS_FNRC) { + if (napi_schedule_prep(&priv->rx_napi)) { + spin_lock_irqsave(&priv->lock, flags); + /* mask Rx Complete interrupt */ + mtk_star_disable_dma_irq(priv, true, false); + spin_unlock_irqrestore(&priv->lock, flags); + __napi_schedule_irqoff(&priv->rx_napi); + } + } - ndev = data; - priv = netdev_priv(ndev); + if (intr_status & MTK_STAR_BIT_INT_STS_TNTC) { + if (napi_schedule_prep(&priv->tx_napi)) { + spin_lock_irqsave(&priv->lock, flags); + /* mask Tx Complete interrupt */ + mtk_star_disable_dma_irq(priv, false, true); + spin_unlock_irqrestore(&priv->lock, flags); + __napi_schedule_irqoff(&priv->tx_napi); + } + } - if (netif_running(ndev)) { - mtk_star_intr_disable(priv); - napi_schedule(&priv->napi); + /* interrupt is triggered once any counters reach 0x8000000 */ + if (intr_status & MTK_STAR_REG_INT_STS_MIB_CNT_TH) { + mtk_star_update_stats(priv); + mtk_star_reset_counters(priv); } return IRQ_HANDLED; @@ -971,7 +1011,8 @@ static int mtk_star_enable(struct net_device *ndev) if (ret) goto err_free_skbs; - napi_enable(&priv->napi); + napi_enable(&priv->tx_napi); + napi_enable(&priv->rx_napi); mtk_star_intr_ack_all(priv); mtk_star_intr_enable(priv); @@ -1004,7 +1045,8 @@ static void mtk_star_disable(struct net_device *ndev) struct mtk_star_priv *priv = netdev_priv(ndev); netif_stop_queue(ndev); - napi_disable(&priv->napi); + napi_disable(&priv->tx_napi); + napi_disable(&priv->rx_napi); mtk_star_intr_disable(priv); mtk_star_dma_disable(priv); mtk_star_intr_ack_all(priv); @@ -1043,6 +1085,17 @@ static int mtk_star_netdev_start_xmit(struct sk_buff *skb, struct mtk_star_ring *ring = &priv->tx_ring; struct device *dev = mtk_star_get_dev(priv); struct mtk_star_ring_desc_data desc_data; + int nfrags = skb_shinfo(skb)->nr_frags; + + if (unlikely(mtk_star_tx_ring_avail(ring) < nfrags + 1)) { + if (!netif_queue_stopped(ndev)) { + netif_stop_queue(ndev); + /* This is a hard error, log it. */ + netdev_err(priv->ndev, "%s: Tx Ring full when queue awake\n", + __func__); + } + return NETDEV_TX_BUSY; + } desc_data.dma_addr = mtk_star_dma_map_tx(priv, skb); if (dma_mapping_error(dev, desc_data.dma_addr)) @@ -1050,18 +1103,10 @@ static int mtk_star_netdev_start_xmit(struct sk_buff *skb, desc_data.skb = skb; desc_data.len = skb->len; - - spin_lock_bh(&priv->lock); - mtk_star_ring_push_head_tx(ring, &desc_data); netdev_sent_queue(ndev, skb->len); - if (mtk_star_ring_full(ring)) - netif_stop_queue(ndev); - - spin_unlock_bh(&priv->lock); - mtk_star_dma_resume_tx(priv); return NETDEV_TX_OK; @@ -1092,23 +1137,31 @@ static int mtk_star_tx_complete_one(struct mtk_star_priv *priv) return ret; } -static void mtk_star_tx_complete_all(struct mtk_star_priv *priv) +static int mtk_star_tx_poll(struct napi_struct *napi, int budget) { - struct mtk_star_ring *ring = &priv->tx_ring; - struct net_device *ndev = priv->ndev; - int ret, pkts_compl, bytes_compl; + int ret, pkts_compl = 0, bytes_compl = 0, count = 0; + struct mtk_star_priv *priv; + struct mtk_star_ring *ring; + struct net_device *ndev; + unsigned long flags = 0; + unsigned int entry; bool wake = false; - spin_lock(&priv->lock); + priv = container_of(napi, struct mtk_star_priv, tx_napi); + ndev = priv->ndev; - for (pkts_compl = 0, bytes_compl = 0;; + __netif_tx_lock_bh(netdev_get_tx_queue(priv->ndev, 0)); + ring = &priv->tx_ring; + entry = ring->tail; + for (pkts_compl = 0, bytes_compl = 0; + (entry != ring->head) && (count < budget); pkts_compl++, bytes_compl += ret, wake = true) { - if (!mtk_star_ring_descs_available(ring)) - break; ret = mtk_star_tx_complete_one(priv); if (ret < 0) break; + count++; + entry = ring->tail; } netdev_completed_queue(ndev, pkts_compl, bytes_compl); @@ -1116,7 +1169,16 @@ static void mtk_star_tx_complete_all(struct mtk_star_priv *priv) if (wake && netif_queue_stopped(ndev)) netif_wake_queue(ndev); - spin_unlock(&priv->lock); + __netif_tx_unlock_bh(netdev_get_tx_queue(priv->ndev, 0)); + + count = min(count, budget); + if (count < budget && napi_complete_done(napi, count)) { + spin_lock_irqsave(&priv->lock, flags); + mtk_star_enable_dma_irq(priv, false, true); + spin_unlock_irqrestore(&priv->lock, flags); + } + + return count; } static void mtk_star_netdev_get_stats64(struct net_device *ndev, @@ -1196,7 +1258,7 @@ static const struct ethtool_ops mtk_star_ethtool_ops = { .set_link_ksettings = phy_ethtool_set_link_ksettings, }; -static int mtk_star_receive_packet(struct mtk_star_priv *priv) +static int mtk_star_rx(struct mtk_star_priv *priv, int budget) { struct mtk_star_ring *ring = &priv->rx_ring; struct device *dev = mtk_star_get_dev(priv); @@ -1204,107 +1266,86 @@ static int mtk_star_receive_packet(struct mtk_star_priv *priv) struct net_device *ndev = priv->ndev; struct sk_buff *curr_skb, *new_skb; dma_addr_t new_dma_addr; - int ret; + int ret, count = 0; - spin_lock(&priv->lock); - ret = mtk_star_ring_pop_tail(ring, &desc_data); - spin_unlock(&priv->lock); - if (ret) - return -1; + while (count < budget) { + ret = mtk_star_ring_pop_tail(ring, &desc_data); + if (ret) + return -1; - curr_skb = desc_data.skb; + curr_skb = desc_data.skb; - if ((desc_data.flags & MTK_STAR_DESC_BIT_RX_CRCE) || - (desc_data.flags & MTK_STAR_DESC_BIT_RX_OSIZE)) { - /* Error packet -> drop and reuse skb. */ - new_skb = curr_skb; - goto push_new_skb; - } + if ((desc_data.flags & MTK_STAR_DESC_BIT_RX_CRCE) || + (desc_data.flags & MTK_STAR_DESC_BIT_RX_OSIZE)) { + /* Error packet -> drop and reuse skb. */ + new_skb = curr_skb; + goto push_new_skb; + } - /* Prepare new skb before receiving the current one. Reuse the current - * skb if we fail at any point. - */ - new_skb = mtk_star_alloc_skb(ndev); - if (!new_skb) { - ndev->stats.rx_dropped++; - new_skb = curr_skb; - goto push_new_skb; - } + /* Prepare new skb before receiving the current one. + * Reuse the current skb if we fail at any point. + */ + new_skb = mtk_star_alloc_skb(ndev); + if (!new_skb) { + ndev->stats.rx_dropped++; + new_skb = curr_skb; + goto push_new_skb; + } - new_dma_addr = mtk_star_dma_map_rx(priv, new_skb); - if (dma_mapping_error(dev, new_dma_addr)) { - ndev->stats.rx_dropped++; - dev_kfree_skb(new_skb); - new_skb = curr_skb; - netdev_err(ndev, "DMA mapping error of RX descriptor\n"); - goto push_new_skb; - } + new_dma_addr = mtk_star_dma_map_rx(priv, new_skb); + if (dma_mapping_error(dev, new_dma_addr)) { + ndev->stats.rx_dropped++; + dev_kfree_skb(new_skb); + new_skb = curr_skb; + netdev_err(ndev, "DMA mapping error of RX descriptor\n"); + goto push_new_skb; + } - /* We can't fail anymore at this point: it's safe to unmap the skb. */ - mtk_star_dma_unmap_rx(priv, &desc_data); + /* We can't fail anymore at this point: + * it's safe to unmap the skb. + */ + mtk_star_dma_unmap_rx(priv, &desc_data); - skb_put(desc_data.skb, desc_data.len); - desc_data.skb->ip_summed = CHECKSUM_NONE; - desc_data.skb->protocol = eth_type_trans(desc_data.skb, ndev); - desc_data.skb->dev = ndev; - netif_receive_skb(desc_data.skb); + skb_put(desc_data.skb, desc_data.len); + desc_data.skb->ip_summed = CHECKSUM_NONE; + desc_data.skb->protocol = eth_type_trans(desc_data.skb, ndev); + desc_data.skb->dev = ndev; + netif_receive_skb(desc_data.skb); - /* update dma_addr for new skb */ - desc_data.dma_addr = new_dma_addr; + /* update dma_addr for new skb */ + desc_data.dma_addr = new_dma_addr; push_new_skb: - desc_data.len = skb_tailroom(new_skb); - desc_data.skb = new_skb; - - spin_lock(&priv->lock); - mtk_star_ring_push_head_rx(ring, &desc_data); - spin_unlock(&priv->lock); - - return 0; -} -static int mtk_star_process_rx(struct mtk_star_priv *priv, int budget) -{ - int received, ret; + count++; - for (received = 0, ret = 0; received < budget && ret == 0; received++) - ret = mtk_star_receive_packet(priv); + desc_data.len = skb_tailroom(new_skb); + desc_data.skb = new_skb; + mtk_star_ring_push_head_rx(ring, &desc_data); + } mtk_star_dma_resume_rx(priv); - return received; + return count; } -static int mtk_star_poll(struct napi_struct *napi, int budget) +static int mtk_star_rx_poll(struct napi_struct *napi, int budget) { struct mtk_star_priv *priv; - unsigned int status; - int received = 0; + unsigned long flags = 0; + int work_done = 0; - priv = container_of(napi, struct mtk_star_priv, napi); + priv = container_of(napi, struct mtk_star_priv, rx_napi); - status = mtk_star_intr_read(priv); - mtk_star_intr_ack_all(priv); - - if (status & MTK_STAR_BIT_INT_STS_TNTC) - /* Clean-up all TX descriptors. */ - mtk_star_tx_complete_all(priv); - - if (status & MTK_STAR_BIT_INT_STS_FNRC) - /* Receive up to $budget packets. */ - received = mtk_star_process_rx(priv, budget); - - if (unlikely(status & MTK_STAR_REG_INT_STS_MIB_CNT_TH)) { - mtk_star_update_stats(priv); - mtk_star_reset_counters(priv); + work_done = mtk_star_rx(priv, budget); + if (work_done < budget) { + napi_complete_done(napi, work_done); + spin_lock_irqsave(&priv->lock, flags); + mtk_star_enable_dma_irq(priv, true, false); + spin_unlock_irqrestore(&priv->lock, flags); } - if (received < budget) - napi_complete_done(napi, received); - - mtk_star_intr_enable(priv); - - return received; + return work_done; } static void mtk_star_mdio_rwok_clear(struct mtk_star_priv *priv) @@ -1478,6 +1519,7 @@ static int mtk_star_set_timing(struct mtk_star_priv *priv) return 0; } + static int mtk_star_probe(struct platform_device *pdev) { struct device_node *of_node; @@ -1604,7 +1646,10 @@ static int mtk_star_probe(struct platform_device *pdev) ndev->netdev_ops = &mtk_star_netdev_ops; ndev->ethtool_ops = &mtk_star_ethtool_ops; - netif_napi_add(ndev, &priv->napi, mtk_star_poll, MTK_STAR_NAPI_WEIGHT); + netif_napi_add(ndev, &priv->rx_napi, + mtk_star_rx_poll, MTK_STAR_NAPI_WEIGHT); + netif_tx_napi_add(ndev, &priv->tx_napi, + mtk_star_tx_poll, MTK_STAR_NAPI_WEIGHT); return devm_register_netdev(dev, ndev); }