From mboxrd@z Thu Jan 1 00:00:00 1970 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=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, 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 BA396C54FD0 for ; Fri, 24 Apr 2020 12:27:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 903A421569 for ; Fri, 24 Apr 2020 12:27:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587731226; bh=8cD1OddezbZiSb0fP44H5RhMKRNa676XV1toZF2upiU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=UXqTVsqDlc53rlW2EE9jLBrXjqOiz4E/oNNH+YDa4YCgiGweKw/+sci9AFqj08nlk CwSco5C9kIn5TI+vEXdg8kXdB6q8ntYxRrta8D73cCKCyegRLzrBjdIFT4a1dr2li4 ygJ0V4BQoF+YEv/9luSwWq07SdBEJJn/KOOvj+Eo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728505AbgDXMYm (ORCPT ); Fri, 24 Apr 2020 08:24:42 -0400 Received: from mail.kernel.org ([198.145.29.99]:55506 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728500AbgDXMYl (ORCPT ); Fri, 24 Apr 2020 08:24:41 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id E5E8A21582; Fri, 24 Apr 2020 12:24:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1587731080; bh=8cD1OddezbZiSb0fP44H5RhMKRNa676XV1toZF2upiU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=OaTWhBDbk7tmdlVo9a/yaBHFscL4ypva08V9i7VG7goPhIZsR5BOtgHCYdtPN30mk jQP5bQnq02lTeZJaEihbaF2R+S73Gm5b+w2uhjKJ+YlrWHzu1TlynjgfuxMPmqcyxd tGkZS2ZO5Or55yiaEvkMWueEzp90jATeibV+5FfY= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Florian Fainelli , Chen-Yu Tsai , "David S . Miller" , Sasha Levin , netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Subject: [PATCH AUTOSEL 4.14 17/21] net: stmmac: dwmac-sunxi: Provide TX and RX fifo sizes Date: Fri, 24 Apr 2020 08:24:15 -0400 Message-Id: <20200424122419.10648-17-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200424122419.10648-1-sashal@kernel.org> References: <20200424122419.10648-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Florian Fainelli [ Upstream commit 806fd188ce2a4f8b587e83e73c478e6484fbfa55 ] After commit bfcb813203e619a8960a819bf533ad2a108d8105 ("net: dsa: configure the MTU for switch ports") my Lamobo R1 platform which uses an allwinner,sun7i-a20-gmac compatible Ethernet MAC started to fail by rejecting a MTU of 1536. The reason for that is that the DMA capabilities are not readable on this version of the IP, and there is also no 'tx-fifo-depth' property being provided in Device Tree. The property is documented as optional, and is not provided. Chen-Yu indicated that the FIFO sizes are 4KB for TX and 16KB for RX, so provide these values through platform data as an immediate fix until various Device Tree sources get updated accordingly. Fixes: eaf4fac47807 ("net: stmmac: Do not accept invalid MTU values") Suggested-by: Chen-Yu Tsai Signed-off-by: Florian Fainelli Acked-by: Chen-Yu Tsai Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c index fc1fa0f9f3387..57694eada9955 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sunxi.c @@ -155,6 +155,8 @@ static int sun7i_gmac_probe(struct platform_device *pdev) plat_dat->init = sun7i_gmac_init; plat_dat->exit = sun7i_gmac_exit; plat_dat->fix_mac_speed = sun7i_fix_speed; + plat_dat->tx_fifo_size = 4096; + plat_dat->rx_fifo_size = 16384; ret = sun7i_gmac_init(pdev, plat_dat->bsp_priv); if (ret) -- 2.20.1