From patchwork Wed Jul 10 03:32:30 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Justin Lai X-Patchwork-Id: 13728844 X-Patchwork-Delegate: kuba@kernel.org Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AFD3237703; Wed, 10 Jul 2024 03:38:17 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=211.75.126.72 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720582699; cv=none; b=BZSYZvOGiMULne0FSwGGaZMT9QmQCRmAxNNHzbZ28b7ZZUZPuR1DyK2EMGU0c6U5ugQQbfKL/QBLojorU+UNAIeaSEhZ3MpsqT4nJzTRpdaLYg238UBAAdAIrhHrExKuYIEmR3a2qYnOfkLXbfukiB9f4x0outluQBzmyJLxO9Q= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720582699; c=relaxed/simple; bh=u9e+oN0vD92fuK/7aEUazZDyzDylqwJM2fGYzm2C9HE=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=iQF74ohcyeJ85LvSRYG4QdL049Pn3fhi0WNijKQmZ6KdpQfo+Yeq7IVockx4asaP/+nK6gU2D0Ivau3pmEmdzAareGBWl+EPYp496n1MqRRGEhNVkODCzNVVs/hwOS2gjgn7JJjmkoG6sfxM5RzGEa0Iz7kOyOnYsBbPppAcLGQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=realtek.com; spf=pass smtp.mailfrom=realtek.com; dkim=temperror (0-bit key) header.d=realtek.com header.i=@realtek.com header.b=mc9ds5ae; arc=none smtp.client-ip=211.75.126.72 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=realtek.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=realtek.com Authentication-Results: smtp.subspace.kernel.org; dkim=temperror (0-bit key) header.d=realtek.com header.i=@realtek.com header.b="mc9ds5ae" X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 46A3brp271588912, This message is accepted by code: ctloc85258 DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=realtek.com; s=dkim; t=1720582673; bh=u9e+oN0vD92fuK/7aEUazZDyzDylqwJM2fGYzm2C9HE=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Transfer-Encoding:Content-Type; b=mc9ds5aePTHSSB79W1fhVkFKnoCnTLLrgSSt7Ejy3jzb1D4HaxfQhhIe5NYF2L0q0 NTUSmrhCmXfyxqq9rbfDv1QtgiQJBOjoX0xal+aUG9RH28TRLuXIVMwS/bTjBVOyah NMWkZ8fSqbpF7hJSbu9kWzN8JJUG8V1uaIFY4Sq5cKoTx6B4C2iDHk5Joy/rUzy4eY f0baNmaalLkg29HgR0uU4YM6YEHiR0Q7QOSS1wBZCAZK9kd9vF5LUrcPbVnlMnPPkD XzcehSR566hxRdzR0m8wxC5dd2yi+TtJms9yLCx1k/5P8DJaI31HjGxancI3CMYYaC RvqOYZ6BoNsIA== Received: from mail.realtek.com (rtexh36505.realtek.com.tw[172.21.6.25]) by rtits2.realtek.com.tw (8.15.2/3.02/5.92) with ESMTPS id 46A3brp271588912 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Wed, 10 Jul 2024 11:37:53 +0800 Received: from RTEXMBS04.realtek.com.tw (172.21.6.97) by RTEXH36505.realtek.com.tw (172.21.6.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.39; Wed, 10 Jul 2024 11:37:54 +0800 Received: from RTDOMAIN (172.21.210.68) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2507.35; Wed, 10 Jul 2024 11:37:53 +0800 From: Justin Lai To: CC: , , , , , , , , , , , , "Justin Lai" Subject: [PATCH net-next v23 09/13] rtase: Implement pci_driver suspend and resume function Date: Wed, 10 Jul 2024 11:32:30 +0800 Message-ID: <20240710033234.26868-10-justinlai0215@realtek.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240710033234.26868-1-justinlai0215@realtek.com> References: <20240710033234.26868-1-justinlai0215@realtek.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: RTEXH36506.realtek.com.tw (172.21.6.27) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-Patchwork-Delegate: kuba@kernel.org Implement the pci_driver suspend function to enable the device to sleep, and implement the resume function to enable the device to resume operation. Signed-off-by: Justin Lai --- .../net/ethernet/realtek/rtase/rtase_main.c | 51 +++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/drivers/net/ethernet/realtek/rtase/rtase_main.c b/drivers/net/ethernet/realtek/rtase/rtase_main.c index 4ea9c4d0c242..a4799311bd39 100644 --- a/drivers/net/ethernet/realtek/rtase/rtase_main.c +++ b/drivers/net/ethernet/realtek/rtase/rtase_main.c @@ -2186,12 +2186,63 @@ static void rtase_shutdown(struct pci_dev *pdev) rtase_reset_interrupt(pdev, tp); } +static int rtase_suspend(struct device *device) +{ + struct net_device *dev = dev_get_drvdata(device); + + if (netif_running(dev)) { + netif_device_detach(dev); + rtase_hw_reset(dev); + } + + return 0; +} + +static int rtase_resume(struct device *device) +{ + struct net_device *dev = dev_get_drvdata(device); + struct rtase_private *tp = netdev_priv(dev); + int ret; + + /* restore last modified mac address */ + rtase_rar_set(tp, dev->dev_addr); + + if (!netif_running(dev)) + goto out; + + rtase_wait_for_quiescence(dev); + + rtase_tx_clear(tp); + rtase_rx_clear(tp); + + ret = rtase_init_ring(dev); + if (ret) { + netdev_err(dev, "unable to init ring\n"); + rtase_free_desc(tp); + return -ENOMEM; + } + + rtase_hw_config(dev); + /* always link, so start to transmit & receive */ + rtase_hw_start(dev); + + netif_device_attach(dev); +out: + + return 0; +} + +static const struct dev_pm_ops rtase_pm_ops = { + SYSTEM_SLEEP_PM_OPS(rtase_suspend, rtase_resume) +}; + static struct pci_driver rtase_pci_driver = { .name = KBUILD_MODNAME, .id_table = rtase_pci_tbl, .probe = rtase_init_one, .remove = rtase_remove_one, .shutdown = rtase_shutdown, + .driver.pm = pm_ptr(&rtase_pm_ops), }; module_pci_driver(rtase_pci_driver);