From patchwork Thu Nov 9 17:34:00 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: ChunHao Lin X-Patchwork-Id: 13451581 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8C41E22308 for ; Thu, 9 Nov 2023 17:34:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=none Received: from rtits2.realtek.com.tw (rtits2.realtek.com [211.75.126.72]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D857E1991; Thu, 9 Nov 2023 09:34:25 -0800 (PST) X-SpamFilter-By: ArmorX SpamTrap 5.78 with qID 3A9HYAa941693917, This message is accepted by code: ctloc85258 Received: from mail.realtek.com (rtexh36505.realtek.com.tw[172.21.6.25]) by rtits2.realtek.com.tw (8.15.2/2.95/5.92) with ESMTPS id 3A9HYAa941693917 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 10 Nov 2023 01:34:10 +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_128_GCM_SHA256) id 15.1.2375.32; Fri, 10 Nov 2023 01:34:10 +0800 Received: from Test06-PC.realtek.com.tw (172.22.228.55) by RTEXMBS04.realtek.com.tw (172.21.6.97) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.7; Fri, 10 Nov 2023 01:34:09 +0800 From: ChunHao Lin To: CC: , , , , , , , ChunHao Lin , Subject: [PATCH net v4 2/2] r8169: fix network lost after resume on DASH systems Date: Fri, 10 Nov 2023 01:34:00 +0800 Message-ID: <20231109173400.4573-3-hau@realtek.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20231109173400.4573-1-hau@realtek.com> References: <20231109173400.4573-1-hau@realtek.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Originating-IP: [172.22.228.55] X-ClientProxiedBy: RTEXH36506.realtek.com.tw (172.21.6.27) To RTEXMBS04.realtek.com.tw (172.21.6.97) X-KSE-ServerInfo: RTEXMBS04.realtek.com.tw, 9 X-KSE-AntiSpam-Interceptor-Info: fallback X-KSE-Antivirus-Interceptor-Info: fallback X-KSE-AntiSpam-Interceptor-Info: fallback X-KSE-ServerInfo: RTEXH36505.realtek.com.tw, 9 X-KSE-AntiSpam-Interceptor-Info: fallback X-KSE-Antivirus-Interceptor-Info: fallback X-KSE-AntiSpam-Interceptor-Info: fallback X-Patchwork-Delegate: kuba@kernel.org Device that support DASH may be reseted or powered off during suspend. So driver needs to handle DASH during system suspend and resume. Or DASH firmware will influence device behavior and causes network lost. Fixes: b646d90053f8 ("r8169: magic.") Cc: stable@vger.kernel.org Reviewed-by: Heiner Kallweit Signed-off-by: ChunHao Lin --- drivers/net/ethernet/realtek/r8169_main.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c index cfcb40d90920..b9bb1d2f0237 100644 --- a/drivers/net/ethernet/realtek/r8169_main.c +++ b/drivers/net/ethernet/realtek/r8169_main.c @@ -4661,10 +4661,16 @@ static void rtl8169_down(struct rtl8169_private *tp) rtl8169_cleanup(tp); rtl_disable_exit_l1(tp); rtl_prepare_power_down(tp); + + if (tp->dash_type != RTL_DASH_NONE) + rtl8168_driver_stop(tp); } static void rtl8169_up(struct rtl8169_private *tp) { + if (tp->dash_type != RTL_DASH_NONE) + rtl8168_driver_start(tp); + pci_set_master(tp->pci_dev); phy_init_hw(tp->phydev); phy_resume(tp->phydev);