From patchwork Tue Oct 29 14:14:53 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jose Abreu X-Patchwork-Id: 1186132 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="gCIsjn8K"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 472YXX0h5Dz9sRd for ; Wed, 30 Oct 2019 01:15:56 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389122AbfJ2OPR (ORCPT ); Tue, 29 Oct 2019 10:15:17 -0400 Received: from dc8-smtprelay2.synopsys.com ([198.182.47.102]:53308 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2389039AbfJ2OPR (ORCPT ); Tue, 29 Oct 2019 10:15:17 -0400 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 848F2C0C41; Tue, 29 Oct 2019 14:15:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1572358517; bh=ntn5h+EtiIr26cxuzm1ZrBPes0SSBYvLTZygjleUGzc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=gCIsjn8Ku5XeJLlLhtD2SPNIXN5ekmpgV5MLXScQWNw5wDoAXrpYULQWFFBbwztSU Ix8E+4shQdeqEqR4uFMH0I0kKW5YbVUBIHIdPhU+/dB0+liDtGQWoh2jiJ5TdofOH7 pb0oJYWpmPS0smMcuShMfyrU1Y6/McdwmCwpqgXHtxBlqA7k0nuhJSDvLw1csBHZ4T +S1Ij/+5nE34GhEzuHZXvUetVDWTx/2SqQSIhpQtQJKFPteZsR0ydZmsJ28Y0yushQ yVVso3+RzmXVKzzVOFaVYdA5BQ/d/3Xq4DVONg0kQ1FToMu1rXAM4cvnGXeu4xfSv9 I04ctY+eZfdgw== Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by mailhost.synopsys.com (Postfix) with ESMTP id 29016A0081; Tue, 29 Oct 2019 14:15:15 +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 9/9] net: stmmac: xgmac: Disable MMC interrupts by default Date: Tue, 29 Oct 2019 15:14:53 +0100 Message-Id: <4c77b55e43cf7a3243086a465b50568eb352d534.1572355609.git.Jose.Abreu@synopsys.com> 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)