From patchwork Wed Feb 5 08:55:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ong Boon Leong X-Patchwork-Id: 11365897 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 9DC5C921 for ; Wed, 5 Feb 2020 08:55:48 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 789162082E for ; Wed, 5 Feb 2020 08:55:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="FeZWwAGH" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 789162082E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=o05tiRi7R6p3B3zB4pQeAJuB6Jdpf696l17Wr8eh2C0=; b=FeZWwAGHh6ygi3dGcDEdC8OZDv KNVFr74xU+yyhdWcF2qIJYsCLTkXKiL/Kf++q4mu2xI30B/FmzUndKqZMH8F55JTPemVSOe8AI07j mDcT8TJxzP6IzqrStLcpyJb1vtNBg2i6E8qEpR/v1eBH8O0taF6i/LwiHi4Chx1pznnaQD87yvISA Vl7aVf0HweweI4qLLMPVoVoiRgV+ZxVjz/SRzyCoxuNzNBbjCuXzmO0cVZPRuh8MzoqCW44yC821t lIydzPZj6YDGk4sHucAlz9V5hfoA67+HMzk+EIdZV+Yz2CiCullln/ynJp4SlRf8bbCdrmoJ+F/Ka 9CtZFJZA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1izGTJ-0004rj-0D; Wed, 05 Feb 2020 08:55:45 +0000 Received: from mga06.intel.com ([134.134.136.31]) by bombadil.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1izGTA-0004jO-Go for linux-arm-kernel@lists.infradead.org; Wed, 05 Feb 2020 08:55:37 +0000 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Feb 2020 00:55:35 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,405,1574150400"; d="scan'208";a="264149178" Received: from unknown (HELO bong5-HP-Z440.png.intel.com) ([10.221.118.166]) by fmsmga002.fm.intel.com with ESMTP; 05 Feb 2020 00:55:33 -0800 From: Ong Boon Leong To: netdev@vger.kernel.org Subject: [PATCH net v4 1/6] net: stmmac: Fix incorrect location to set real_num_rx|tx_queues Date: Wed, 5 Feb 2020 16:55:05 +0800 Message-Id: <20200205085510.32353-2-boon.leong.ong@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200205085510.32353-1-boon.leong.ong@intel.com> References: <20200205085510.32353-1-boon.leong.ong@intel.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200205_005536_602548_AB4EB72E X-CRM114-Status: GOOD ( 11.81 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [134.134.136.31 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jose Abreu , Joao Pinto , Alexandre TORGUE , Voon Weifeng , linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, Arnd Bergmann , Maxime Coquelin , Tan Tee Min , Giuseppe Cavallaro , Alexandru Ardelean , "David S . Miller" , linux-arm-kernel@lists.infradead.org MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org From: Aashish Verma netif_set_real_num_tx_queues() & netif_set_real_num_rx_queues() should be used to inform network stack about the real Tx & Rx queue (active) number in both stmmac_open() and stmmac_resume(), therefore, we move the code from stmmac_dvr_probe() to stmmac_hw_setup(). For driver open(), rtnl_lock is acquired by network stack but not in the resume(). Therefore, we need to rtnl_lock() and rtnl_unlock() when calling stmmac_hw_setup() within resume(). Thanks Jose Abreu for input. Fixes: c02b7a914551 ("net: stmmac: use netif_set_real_num_{rx,tx}_queues") Signed-off-by: Aashish Verma Tested-by: Tan, Tee Min Signed-off-by: Ong Boon Leong --- drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index 5836b21edd7e..4d9afa13eeb9 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -2657,6 +2657,10 @@ static int stmmac_hw_setup(struct net_device *dev, bool init_ptp) stmmac_enable_tbs(priv, priv->ioaddr, enable, chan); } + /* Configure real RX and TX queues */ + netif_set_real_num_rx_queues(dev, priv->plat->rx_queues_to_use); + netif_set_real_num_tx_queues(dev, priv->plat->tx_queues_to_use); + /* Start the ball rolling... */ stmmac_start_all_dma(priv); @@ -4738,10 +4742,6 @@ int stmmac_dvr_probe(struct device *device, stmmac_check_ether_addr(priv); - /* Configure real RX and TX queues */ - netif_set_real_num_rx_queues(ndev, priv->plat->rx_queues_to_use); - netif_set_real_num_tx_queues(ndev, priv->plat->tx_queues_to_use); - ndev->netdev_ops = &stmmac_netdev_ops; ndev->hw_features = NETIF_F_SG | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | @@ -5091,7 +5091,9 @@ int stmmac_resume(struct device *dev) stmmac_clear_descriptors(priv); + rtnl_lock(); stmmac_hw_setup(ndev, false); + rtnl_unlock(); stmmac_init_coalesce(priv); stmmac_set_rx_mode(ndev);