From patchwork Wed Nov 6 15:03:02 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jose Abreu X-Patchwork-Id: 1190506 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=synopsys.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=synopsys.com header.i=@synopsys.com header.b="klG2q3nF"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 477VD55Mqqz9sRN for ; Thu, 7 Nov 2019 02:03:49 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732131AbfKFPDs (ORCPT ); Wed, 6 Nov 2019 10:03:48 -0500 Received: from smtprelay-out1.synopsys.com ([198.182.47.102]:43130 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731948AbfKFPDN (ORCPT ); Wed, 6 Nov 2019 10:03:13 -0500 Received: from mailhost.synopsys.com (mdc-mailhost2.synopsys.com [10.225.0.210]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id 24C9EC0F50; Wed, 6 Nov 2019 15:03:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1573052592; bh=ntn5h+EtiIr26cxuzm1ZrBPes0SSBYvLTZygjleUGzc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=klG2q3nFG65HPrpY5Kdxt47P3pYI7LWxN8yFGTQ9ytOchwkVULKnj/kfj2fmz6kTp bo20ZV4qA+5zBEgV7eTtSmoeeeacKbJDbClj9VXmp8JJvXZaN9SkhmT3P8zofep/7X PMZVqBY98iJsPwys1f4y7hFtQ5cDX3kexvDKl2lCE47/Qg201fXq6MEld9SVV6wRmE zjKK19Yks6TWJQZvrG8ts6NovA5/rhw6Md7qHK/+vnkfg744b7YYg6MoceD6wUTgyn Zt8uzjiz/4/aSmexQJo5bLNv+eY57D88JRDvkvkiQrJWNXXYjwTodHU8VJ2gA+4e52 cuseJ31+kCE0Q== Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by mailhost.synopsys.com (Postfix) with ESMTP id DE67CA007D; Wed, 6 Nov 2019 15:03:10 +0000 (UTC) From: Jose Abreu To: netdev@vger.kernel.org Cc: Joao Pinto , Jose Abreu , Giuseppe Cavallaro , Alexandre Torgue , Jose Abreu , "David S. Miller" , Maxime Coquelin , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH net 08/11] net: stmmac: xgmac: Disable MMC interrupts by default Date: Wed, 6 Nov 2019 16:03:02 +0100 Message-Id: X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org MMC interrupts were being enabled, which is not what we want because it will lead to a storm of interrupts that are not handled at all. Fix it by disabling all MMC interrupts for XGMAC. Fixes: b6cdf09f51c2 ("net: stmmac: xgmac: Implement MMC counters") Signed-off-by: Jose Abreu --- Cc: Giuseppe Cavallaro Cc: Alexandre Torgue Cc: Jose Abreu Cc: "David S. Miller" Cc: Maxime Coquelin Cc: netdev@vger.kernel.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- drivers/net/ethernet/stmicro/stmmac/mmc_core.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c index a223584f5f9a..252cf48c5816 100644 --- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c @@ -176,6 +176,7 @@ #define MMC_XGMAC_RX_PKT_SMD_ERR 0x22c #define MMC_XGMAC_RX_PKT_ASSEMBLY_OK 0x230 #define MMC_XGMAC_RX_FPE_FRAG 0x234 +#define MMC_XGMAC_RX_IPC_INTR_MASK 0x25c static void dwmac_mmc_ctrl(void __iomem *mmcaddr, unsigned int mode) { @@ -333,8 +334,9 @@ static void dwxgmac_mmc_ctrl(void __iomem *mmcaddr, unsigned int mode) static void dwxgmac_mmc_intr_all_mask(void __iomem *mmcaddr) { - writel(MMC_DEFAULT_MASK, mmcaddr + MMC_RX_INTR_MASK); - writel(MMC_DEFAULT_MASK, mmcaddr + MMC_TX_INTR_MASK); + writel(0x0, mmcaddr + MMC_RX_INTR_MASK); + writel(0x0, mmcaddr + MMC_TX_INTR_MASK); + writel(MMC_DEFAULT_MASK, mmcaddr + MMC_XGMAC_RX_IPC_INTR_MASK); } static void dwxgmac_read_mmc_reg(void __iomem *addr, u32 reg, u32 *dest)