From patchwork Mon Jun 3 01:58:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?QmlhbyBIdWFuZyAo6buE5b2qKQ==?= X-Patchwork-Id: 10972115 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 09B491515 for ; Mon, 3 Jun 2019 01:58:46 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id ED4E62880C for ; Mon, 3 Jun 2019 01:58:45 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E07DB28885; Mon, 3 Jun 2019 01:58:45 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 94E332880C for ; Mon, 3 Jun 2019 01:58:45 +0000 (UTC) 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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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=UBeKPhsaj/Y8TU+s1fhCd9dPSmJCGLGIUxetqiieNsE=; b=NKNYOqkrN7Dwga 1GRzC8RaG+Z3MWkFy5S2CR/mlDTZeKAoNuS3N+XxwbvjflTqFibxltYDFWGARdeuuuW4ZuIKCa440 CNIhDcw7qA7izRbpb38ekmspjTprCQB8UzeC5i+PFAMjOg1+3Fw8fGmq5Rmzq7/7cytNl3Q5xIfai QzXG/beAMKtj9Kgg/3kXZpJJI0QF5iYUon4e/fsYOz4OOguRcLo0fUppb8PmB6B5JvpBz+ul6rR91 zS5H8vczizNJmZSYPvMZc6SEhUp/yB5ydwUDp98OUxVsHVLmUATzovIXCe42xQS53JaMnG3iXa0MK /nxwPBTLm06BW98N2RJw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hXcFC-0004q5-Hg; Mon, 03 Jun 2019 01:58:38 +0000 Received: from mailgw01.mediatek.com ([216.200.240.184]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hXcF9-0004nQ-GU; Mon, 03 Jun 2019 01:58:36 +0000 X-UUID: 6fe1f750e3024a35b46b1968ff117c89-20190602 X-UUID: 6fe1f750e3024a35b46b1968ff117c89-20190602 Received: from mtkcas67.mediatek.inc [(172.29.193.45)] by mailgw01.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 949005826; Sun, 02 Jun 2019 17:58:22 -0800 Received: from MTKMBS01N1.mediatek.inc (172.21.101.68) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sun, 2 Jun 2019 18:58:20 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 3 Jun 2019 09:58:19 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 3 Jun 2019 09:58:18 +0800 From: Biao Huang To: , Jose Abreu , Subject: [v2, PATCH 1/4] net: stmmac: dwmac-mediatek: enable Ethernet power domain Date: Mon, 3 Jun 2019 09:58:03 +0800 Message-ID: <1559527086-7227-2-git-send-email-biao.huang@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1559527086-7227-1-git-send-email-biao.huang@mediatek.com> References: <1559527086-7227-1-git-send-email-biao.huang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190602_185835_555101_2C86D2A3 X-CRM114-Status: UNSURE ( 7.92 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jianguo.zhang@mediatek.com, Alexandre Torgue , boon.leong.ong@intel.com, biao.huang@mediatek.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, yt.shen@mediatek.com, linux-mediatek@lists.infradead.org, Maxime Coquelin , Matthias Brugger , Giuseppe Cavallaro , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP add Ethernet power on/off operations in init/exit flow. Signed-off-by: Biao Huang --- .../net/ethernet/stmicro/stmmac/dwmac-mediatek.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c index 126b66b..b84269e 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include @@ -298,6 +299,9 @@ static int mediatek_dwmac_init(struct platform_device *pdev, void *priv) return ret; } + pm_runtime_enable(&pdev->dev); + pm_runtime_get_sync(&pdev->dev); + return 0; } @@ -307,6 +311,9 @@ static void mediatek_dwmac_exit(struct platform_device *pdev, void *priv) const struct mediatek_dwmac_variant *variant = plat->variant; clk_bulk_disable_unprepare(variant->num_clks, plat->clks); + + pm_runtime_put_sync(&pdev->dev); + pm_runtime_disable(&pdev->dev); } static int mediatek_dwmac_probe(struct platform_device *pdev) From patchwork Mon Jun 3 01:58:04 2019 Content-Type: text/plain; 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Mon, 3 Jun 2019 09:58:19 +0800 From: Biao Huang To: , Jose Abreu , Subject: [v2, PATCH 2/4] net: stmmac: dwmac-mediatek: disable rx watchdog Date: Mon, 3 Jun 2019 09:58:04 +0800 Message-ID: <1559527086-7227-3-git-send-email-biao.huang@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1559527086-7227-1-git-send-email-biao.huang@mediatek.com> References: <1559527086-7227-1-git-send-email-biao.huang@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: 7D0565A1FE1EFC274A578540D2089DD78AB5CB210095DDB5636615ACBAD78AAD2000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190602_185836_512604_3AF8987A X-CRM114-Status: UNSURE ( 7.58 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jianguo.zhang@mediatek.com, Alexandre Torgue , boon.leong.ong@intel.com, biao.huang@mediatek.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, yt.shen@mediatek.com, linux-mediatek@lists.infradead.org, Maxime Coquelin , Matthias Brugger , Giuseppe Cavallaro , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP disable rx watchdog for dwmac-mediatek, then the hw will issue a rx interrupt once receiving a packet, so the responding time for rx path will be reduced. Signed-off-by: Biao Huang --- .../net/ethernet/stmicro/stmmac/dwmac-mediatek.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c index b84269e..79f2ee3 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-mediatek.c @@ -356,6 +356,7 @@ static int mediatek_dwmac_probe(struct platform_device *pdev) plat_dat->has_gmac4 = 1; plat_dat->has_gmac = 0; plat_dat->pmt = 0; + plat_dat->riwt_off = 1; plat_dat->maxmtu = ETH_DATA_LEN; plat_dat->bsp_priv = priv_plat; plat_dat->init = mediatek_dwmac_init; From patchwork Mon Jun 3 01:58:05 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?QmlhbyBIdWFuZyAo6buE5b2qKQ==?= X-Patchwork-Id: 10972131 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C96C014C0 for ; 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bh=mSw++qsV28AwdmphJkLac0UOXPopKdoOsxZpBb79kyY=; b=EyMfl2GvNsVKuV BHJKNwy+xxLyoaqdT9dIuZU+LiMpHAGrUwc1C0AVWkQN+KfH8aahl+eh/OAFZt9LqRYqAfgHnKETJ NOYbSLJlTmLtDiYkv/hUCuWDoDfnotMvwuONkBYPYzoH/TybRzUdoKWThazHbKYtXO7vOkJEQFLq0 hGz4q9TbpAcH/9X3LMbN8/RQeIyY0I5Ji72q8d4pvxOKBSANeLn49iDSuUex30WN7rl/a1t+WoRuo XxsP+ZTL6NFfVRVBdufcm5IuXspCMnDH5Y3FPgXJ4oh3s4WnzfV+40FA+8bakm33Hq0CbJDxBmAtQ VGANNiwKAGcYNi0smelw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hXcFs-0005le-6w; Mon, 03 Jun 2019 01:59:20 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hXcFB-0004nU-Vc; Mon, 03 Jun 2019 01:58:39 +0000 X-UUID: c5112f8f83ca42d2b956c569366a6ea9-20190602 X-UUID: c5112f8f83ca42d2b956c569366a6ea9-20190602 Received: from mtkcas68.mediatek.inc [(172.29.94.19)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 1415399635; Sun, 02 Jun 2019 17:58:23 -0800 Received: from MTKMBS01N2.mediatek.inc (172.21.101.79) by MTKMBS62N1.mediatek.inc (172.29.193.41) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sun, 2 Jun 2019 18:58:22 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs01n2.mediatek.inc (172.21.101.79) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 3 Jun 2019 09:58:21 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 3 Jun 2019 09:58:20 +0800 From: Biao Huang To: , Jose Abreu , Subject: [v2, PATCH 3/4] net: stmmac: modify default value of tx-frames Date: Mon, 3 Jun 2019 09:58:05 +0800 Message-ID: <1559527086-7227-4-git-send-email-biao.huang@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1559527086-7227-1-git-send-email-biao.huang@mediatek.com> References: <1559527086-7227-1-git-send-email-biao.huang@mediatek.com> MIME-Version: 1.0 X-TM-SNTS-SMTP: BD275BFD7C7B409CEB7828DFEDF77080E409217901078B7CB600EA6F89081E792000:8 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190602_185838_028655_B4BEF91F X-CRM114-Status: GOOD ( 10.60 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jianguo.zhang@mediatek.com, Alexandre Torgue , boon.leong.ong@intel.com, biao.huang@mediatek.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, yt.shen@mediatek.com, linux-mediatek@lists.infradead.org, Maxime Coquelin , Matthias Brugger , Giuseppe Cavallaro , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP the default value of tx-frames is 25, it's too late when passing tstamp to stack, then the ptp4l will fail: ptp4l -i eth0 -f gPTP.cfg -m ptp4l: selected /dev/ptp0 as PTP clock ptp4l: port 1: INITIALIZING to LISTENING on INITIALIZE ptp4l: port 0: INITIALIZING to LISTENING on INITIALIZE ptp4l: port 1: link up ptp4l: timed out while polling for tx timestamp ptp4l: increasing tx_timestamp_timeout may correct this issue, but it is likely caused by a driver bug ptp4l: port 1: send peer delay response failed ptp4l: port 1: LISTENING to FAULTY on FAULT_DETECTED (FT_UNSPECIFIED) ptp4l tests pass when changing the tx-frames from 25 to 1 with ethtool -C option. It should be fine to set tx-frames default value to 1, so ptp4l will pass by default. Signed-off-by: Biao Huang --- drivers/net/ethernet/stmicro/stmmac/common.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/common.h b/drivers/net/ethernet/stmicro/stmmac/common.h index 26bbcd8..6a08cec 100644 --- a/drivers/net/ethernet/stmicro/stmmac/common.h +++ b/drivers/net/ethernet/stmicro/stmmac/common.h @@ -261,7 +261,7 @@ struct stmmac_safety_stats { #define STMMAC_COAL_TX_TIMER 1000 #define STMMAC_MAX_COAL_TX_TICK 100000 #define STMMAC_TX_MAX_FRAMES 256 -#define STMMAC_TX_FRAMES 25 +#define STMMAC_TX_FRAMES 1 /* Packets types */ enum packets_types { From patchwork Mon Jun 3 01:58:06 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: =?utf-8?b?QmlhbyBIdWFuZyAo6buE5b2qKQ==?= X-Patchwork-Id: 10972123 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id B8DF714C0 for ; Mon, 3 Jun 2019 01:59:01 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A73FB2880C for ; Mon, 3 Jun 2019 01:59:01 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9BBF528885; Mon, 3 Jun 2019 01:59:01 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 403C92880C for ; Mon, 3 Jun 2019 01:59:01 +0000 (UTC) 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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version: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=UO5XhR1CliLJ0VgblvTpfO6I+uHxHnPD02SJSoFXfZo=; b=SLtTbF/HGrM+GG /wn0q2CkbEC2vRmdKcaEs2TFsCWBX8r4t1DB6LWz96uTiibxvZ3IdYLJT04O5tT/Wh/Nwsn1yq7DN 5OsvLV0XlmP6KlwtAPIcOpAjCvRf28RDDRKw1EY/p1JzFeYX0960thEgyH1zINobxumQ9e2q73sQd 1owiu8eA7vz7kdBtP6/65geJ3bZwKV3RrLG+yxxXxgEocuA0YorWcTIEjNzPuZyCOuOFl6IfZvppL Qu+WF67DXUNCvJ6fLiQEYeXhCdqgV/Sn+tQ+wlVGD7yL0JPf8MWFzfCPY2Gbv5rOBWtfqAJy/Syr5 wlv/gdJoI3IrgnbqQ8bw==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1hXcFU-0005Fj-Mf; Mon, 03 Jun 2019 01:58:56 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1hXcFA-0004nU-FJ; Mon, 03 Jun 2019 01:58:37 +0000 X-UUID: 3c3d464cf3004549847f3c119bb04e20-20190602 X-UUID: 3c3d464cf3004549847f3c119bb04e20-20190602 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLS) with ESMTP id 837220854; Sun, 02 Jun 2019 17:58:25 -0800 Received: from MTKMBS01N1.mediatek.inc (172.21.101.68) by MTKMBS62DR.mediatek.inc (172.29.94.18) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Sun, 2 Jun 2019 18:58:23 -0700 Received: from mtkcas07.mediatek.inc (172.21.101.84) by mtkmbs01n1.mediatek.inc (172.21.101.68) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Mon, 3 Jun 2019 09:58:22 +0800 Received: from localhost.localdomain (10.17.3.153) by mtkcas07.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via Frontend Transport; Mon, 3 Jun 2019 09:58:21 +0800 From: Biao Huang To: , Jose Abreu , Subject: [v2, PATCH 4/4] net: stmmac: dwmac4: fix flow control issue Date: Mon, 3 Jun 2019 09:58:06 +0800 Message-ID: <1559527086-7227-5-git-send-email-biao.huang@mediatek.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1559527086-7227-1-git-send-email-biao.huang@mediatek.com> References: <1559527086-7227-1-git-send-email-biao.huang@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190602_185836_518546_69F32CC5 X-CRM114-Status: UNSURE ( 9.71 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jianguo.zhang@mediatek.com, Alexandre Torgue , boon.leong.ong@intel.com, biao.huang@mediatek.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, yt.shen@mediatek.com, linux-mediatek@lists.infradead.org, Maxime Coquelin , Matthias Brugger , Giuseppe Cavallaro , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Current dwmac4_flow_ctrl will not clear GMAC_RX_FLOW_CTRL_RFE/GMAC_RX_FLOW_CTRL_RFE bits, so MAC hw will keep flow control on although expecting flow control off by ethtool. Add codes to fix it. Fixes: 477286b53f55 ("stmmac: add GMAC4 core support") Signed-off-by: Biao Huang --- drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c index 2544cff..9322b71 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c @@ -488,8 +488,9 @@ static void dwmac4_flow_ctrl(struct mac_device_info *hw, unsigned int duplex, if (fc & FLOW_RX) { pr_debug("\tReceive Flow-Control ON\n"); flow |= GMAC_RX_FLOW_CTRL_RFE; - writel(flow, ioaddr + GMAC_RX_FLOW_CTRL); } + writel(flow, ioaddr + GMAC_RX_FLOW_CTRL); + if (fc & FLOW_TX) { pr_debug("\tTransmit Flow-Control ON\n"); @@ -497,7 +498,7 @@ static void dwmac4_flow_ctrl(struct mac_device_info *hw, unsigned int duplex, pr_debug("\tduplex mode: PAUSE %d\n", pause_time); for (queue = 0; queue < tx_cnt; queue++) { - flow |= GMAC_TX_FLOW_CTRL_TFE; + flow = GMAC_TX_FLOW_CTRL_TFE; if (duplex) flow |= @@ -505,6 +506,9 @@ static void dwmac4_flow_ctrl(struct mac_device_info *hw, unsigned int duplex, writel(flow, ioaddr + GMAC_QX_TX_FLOW_CTRL(queue)); } + } else { + for (queue = 0; queue < tx_cnt; queue++) + writel(0, ioaddr + GMAC_QX_TX_FLOW_CTRL(queue)); } }