From patchwork Thu May 14 00:07:42 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Vasut X-Patchwork-Id: 1289793 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=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=denx.de Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 49MsML4HSmz9sRK for ; Thu, 14 May 2020 10:08:30 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732990AbgENAI3 (ORCPT ); Wed, 13 May 2020 20:08:29 -0400 Received: from mail-out.m-online.net ([212.18.0.9]:44253 "EHLO mail-out.m-online.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732962AbgENAIW (ORCPT ); Wed, 13 May 2020 20:08:22 -0400 Received: from frontend01.mail.m-online.net (unknown [192.168.8.182]) by mail-out.m-online.net (Postfix) with ESMTP id 49MsM92dT5z1qskW; Thu, 14 May 2020 02:08:21 +0200 (CEST) Received: from localhost (dynscan1.mnet-online.de [192.168.6.70]) by mail.m-online.net (Postfix) with ESMTP id 49MsM92QDyz1qql9; Thu, 14 May 2020 02:08:21 +0200 (CEST) X-Virus-Scanned: amavisd-new at mnet-online.de Received: from mail.mnet-online.de ([192.168.8.182]) by localhost (dynscan1.mail.m-online.net [192.168.6.70]) (amavisd-new, port 10024) with ESMTP id Ka3lnohhXUiW; Thu, 14 May 2020 02:08:20 +0200 (CEST) X-Auth-Info: XhkDrTnURg12NmffhMKSYmqX9NnI5kUVJ0Z+Ydo8yfQ= Received: from desktop.lan (ip-86-49-35-8.net.upcbroadband.cz [86.49.35.8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.mnet-online.de (Postfix) with ESMTPSA; Thu, 14 May 2020 02:08:20 +0200 (CEST) From: Marek Vasut To: netdev@vger.kernel.org Cc: Marek Vasut , "David S . Miller" , Lukas Wunner , Petr Stetiar , YueHaibing Subject: [PATCH V5 14/19] net: ks8851: Factor out TX work flush function Date: Thu, 14 May 2020 02:07:42 +0200 Message-Id: <20200514000747.159320-15-marex@denx.de> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200514000747.159320-1-marex@denx.de> References: <20200514000747.159320-1-marex@denx.de> MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org While the SPI version of the KS8851 requires a TX worker thread to pump data via SPI, the parallel bus version can write data into the TX FIFO directly in .ndo_start_xmit, as the parallel bus access is much faster and does not sleep. Factor out this TX work flush part, so it can be overridden by the parallel bus driver. Signed-off-by: Marek Vasut Cc: David S. Miller Cc: Lukas Wunner Cc: Petr Stetiar Cc: YueHaibing Reviewed-by: Andrew Lunn --- V3: New patch V4: No change V5: No change --- drivers/net/ethernet/micrel/ks8851.c | 16 ++++++++++++---- 1 file changed, 12 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/micrel/ks8851.c b/drivers/net/ethernet/micrel/ks8851.c index 791b2f14dd9d..20c07e229e12 100644 --- a/drivers/net/ethernet/micrel/ks8851.c +++ b/drivers/net/ethernet/micrel/ks8851.c @@ -781,6 +781,17 @@ static void ks8851_tx_work(struct work_struct *work) ks8851_unlock(ks, &flags); } +/** + * ks8851_flush_tx_work - flush outstanding TX work + * @ks: The device state + */ +static void ks8851_flush_tx_work(struct ks8851_net *ks) +{ + struct ks8851_net_spi *kss = to_ks8851_spi(ks); + + flush_work(&kss->tx_work); +} + /** * ks8851_net_open - open network device * @dev: The network device being opened. @@ -880,11 +891,8 @@ static int ks8851_net_open(struct net_device *dev) static int ks8851_net_stop(struct net_device *dev) { struct ks8851_net *ks = netdev_priv(dev); - struct ks8851_net_spi *kss; unsigned long flags; - kss = to_ks8851_spi(ks); - netif_info(ks, ifdown, dev, "shutting down\n"); netif_stop_queue(dev); @@ -896,7 +904,7 @@ static int ks8851_net_stop(struct net_device *dev) ks8851_unlock(ks, &flags); /* stop any outstanding work */ - flush_work(&kss->tx_work); + ks8851_flush_tx_work(ks); flush_work(&ks->rxctrl_work); ks8851_lock(ks, &flags);