From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-3357373-1521480617-2-14161149168458950147 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.25, RCVD_IN_DNSWL_HI -5, T_RP_MATCHES_RCVD -0.01, LANGUAGES en, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='209.132.180.67', Host='vger.kernel.org', Country='CN', FromHeader='com', MailFrom='org', XOriginatingCountry='US' X-Spam-charsets: plain='iso-8859-1' X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: stable-owner@vger.kernel.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1521480616; b=YrhffvhYAGSaDhd9X2SUhHmyU6VkV12lKIV4HzK0sZIS1YI XiucOATrbJc4gVFFNMmW0RcKxemPwTs9TPHJIRrMJb0ISDUVjXRSOFNPpQQoW45Y m3WTilfwsqpdArJq/sx7j7l7+UjZnCfOg1rxfZP0Qjz4VCeCF98VNF7G4TDh+vls oCYRiQaJokxd5vnz4xol3wjX+1Cnx6wRxZPu0j6oS3htqg3hUr+q6MHxGB5Cy+jt v3gMxKhdZfXzIBF3LjyOcVU7G9ENkCl4UK4H25UExIvawhU+QIQCjQoaKYfCF2C8 V6TcESWStcMctZRuLIi4GfnjSf1nRqWJQChOYIQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:cc:subject:date:message-id :references:in-reply-to:content-type:content-transfer-encoding :mime-version:sender:list-id; s=arctest; t=1521480616; bh=DYb/0B Mou6xxIFeUB4QvtjFiNnRFl+6GxVYaqo6itsA=; b=Dp9wTDAYzI+d9TjWXT3YMw 4EdioQQdo+2ukFFr871cTAx2Cy2jOEUW/IxY9LTlNGTY9a2tfMLXReXIEplcrZ2w Dxqr50BCTdw+SP175GY34TxT3bKVeEJCXXUcK/aGhCkQ5Nb7X/1xC8XRVhkxYLPq BTl1ipZXHKA5fosGwlVs75nt+tg6yq+ZhdOGczqnSlWbsAozeKn1tlOcz60Pk9Oi 2lFx3FmAwBUhEGwgaojBZfcuUU015xD+fZin1DRrSPN951K01tiBoDOiZaDds+ga rSRQqLaA9Y1lYuxUFcrHocpCZ5G3hTfL9Sc0Xc2jlzxgCbYOtjQEAUAIQt1SKOSA == ARC-Authentication-Results: i=1; mx2.messagingengine.com; arc=none (no signatures found); dkim=pass (1024-bit rsa key sha256) header.d=microsoft.com header.i=@microsoft.com header.b=KBCVNh+C x-bits=1024 x-keytype=rsa x-algorithm=sha256 x-selector=selector1; dmarc=pass (p=reject,has-list-id=yes,d=none) header.from=microsoft.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-category=clean score=-100 state=0 spamcause=gggruggvucftvghtrhhoucdtuddrgedtgedrudefgddutdduucdltddurdegtdefrddttddmucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvffuthffkfhfjghitgfggghsphejsehtqhertddttddunecuhfhrohhmpefurghshhgrucfnvghvihhnuceotehlvgigrghnuggvrhdrnfgvvhhinhesmhhitghrohhsohhfthdrtghomheqnecukfhppedvtdelrddufedvrddukedtrdeijedphedvrdduieekrdehgedrvdehvddpfhgvkedtmeemfegulegsmeejlegvjeemleegvggsmeehugeivdenucfrrghrrghmpehinhgvthepvddtledrudefvddrudektddrieejpdhhvghlohepvhhgvghrrdhkvghrnhgvlhdrohhrghdpmhgrihhlfhhrohhmpeeoshhtrggslhgvqdhofihnvghrsehvghgvrhdrkhgvrhhnvghlrdhorhhgqecuuefqffgjpeekuefkvffokffogfcuuffkkgfgpeekhedtleenucevlhhushhtvghrufhiiigvpeegvd; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=microsoft.com header.result=pass header_is_org_domain=yes Authentication-Results: mx2.messagingengine.com; arc=none (no signatures found); dkim=pass (1024-bit rsa key sha256) header.d=microsoft.com header.i=@microsoft.com header.b=KBCVNh+C x-bits=1024 x-keytype=rsa x-algorithm=sha256 x-selector=selector1; dmarc=pass (p=reject,has-list-id=yes,d=none) header.from=microsoft.com; iprev=pass policy.iprev=209.132.180.67 (vger.kernel.org); spf=none smtp.mailfrom=stable-owner@vger.kernel.org smtp.helo=vger.kernel.org; x-aligned-from=fail; x-category=clean score=-100 state=0 spamcause=gggruggvucftvghtrhhoucdtuddrgedtgedrudefgddutdduucdltddurdegtdefrddttddmucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlnecuuegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvffuthffkfhfjghitgfggghsphejsehtqhertddttddunecuhfhrohhmpefurghshhgrucfnvghvihhnuceotehlvgigrghnuggvrhdrnfgvvhhinhesmhhitghrohhsohhfthdrtghomheqnecukfhppedvtdelrddufedvrddukedtrdeijedphedvrdduieekrdehgedrvdehvddpfhgvkedtmeemfegulegsmeejlegvjeemleegvggsmeehugeivdenucfrrghrrghmpehinhgvthepvddtledrudefvddrudektddrieejpdhhvghlohepvhhgvghrrdhkvghrnhgvlhdrohhrghdpmhgrihhlfhhrohhmpeeoshhtrggslhgvqdhofihnvghrsehvghgvrhdrkhgvrhhnvghlrdhorhhgqecuuefqffgjpeekuefkvffokffogfcuuffkkgfgpeekhedtleenucevlhhushhtvghrufhiiigvpeegvd; x-ptr=pass x-ptr-helo=vger.kernel.org x-ptr-lookup=vger.kernel.org; x-return-mx=pass smtp.domain=vger.kernel.org smtp.result=pass smtp_org.domain=kernel.org smtp_org.result=pass smtp_is_org_domain=no header.domain=microsoft.com header.result=pass header_is_org_domain=yes Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S966111AbeCSQHH (ORCPT ); Mon, 19 Mar 2018 12:07:07 -0400 Received: from mail-by2nam03on0113.outbound.protection.outlook.com ([104.47.42.113]:31931 "EHLO NAM03-BY2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S966059AbeCSQGt (ORCPT ); Mon, 19 Mar 2018 12:06:49 -0400 From: Sasha Levin To: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" CC: Grygorii Strashko , Schuyler Patton , "David S . Miller" , Sasha Levin Subject: [PATCH AUTOSEL for 4.4 013/167] net: ethernet: ti: cpsw: adjust cpsw fifos depth for fullduplex flow control Thread-Topic: [PATCH AUTOSEL for 4.4 013/167] net: ethernet: ti: cpsw: adjust cpsw fifos depth for fullduplex flow control Thread-Index: AQHTv5wdAaJPhrWQFke9FciTk2eNow== Date: Mon, 19 Mar 2018 16:05:36 +0000 Message-ID: <20180319160513.16384-13-alexander.levin@microsoft.com> References: <20180319160513.16384-1-alexander.levin@microsoft.com> In-Reply-To: <20180319160513.16384-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;DM5PR2101MB0920;7:FuyvZAkVsy5Xyweucb4JwK2X7UtyuMjlXHZ59jISuYXhxPuI/HhvZuj7DTQYO+xmlPWUCEFX+FQ29CAK6CnHAQ4XfPJuaqXWKHRYqeY2xWbnWYHaCLl4dLvohof6s624Gplk/FYDdUdUx6hNjP1JtcKcO7s2bu0An8G8f4rJAnATZug4hWbc5yGuJ6HlZ4OWYR9lRdzuThXuWp1sHeog5f81/e5mytY1BmTYtnXDlrnOmkebYrA7WPTKreMhVOAQ;20:8Df5nsmgXbzXdDEtvMVM3ssEV0ue8CNfQLNeFavN/XNf40m05HbeqscMssEwbB1A70dhOP8KSaWpY3KSUdwJwrlULPrHd14OYYgS9gPQe9fxO9LEwzlyJo+JTIFqvzHf/AatNVAgwvK6CqRxvbQAs8KOGf04Rj1bqQ83/9FXiZo= x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 5ca58f72-aab9-48b0-cd7a-08d58db369f4 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7193020);SRVR:DM5PR2101MB0920; x-ms-traffictypediagnostic: DM5PR2101MB0920: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Alexander.Levin@microsoft.com; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(28532068793085)(31051911155226)(89211679590171); x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(8211001083)(61425038)(6040522)(2401047)(5005006)(8121501046)(3231221)(944501300)(52105095)(3002001)(93006095)(93001095)(10201501046)(6055026)(61426038)(61427038)(6041310)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123560045)(20161123562045)(20161123564045)(20161123558120)(6072148)(201708071742011);SRVR:DM5PR2101MB0920;BCL:0;PCL:0;RULEID:;SRVR:DM5PR2101MB0920; x-forefront-prvs: 06167FAD59 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(346002)(39380400002)(396003)(376002)(39860400002)(366004)(189003)(199004)(6512007)(14454004)(2906002)(2900100001)(8936002)(186003)(86362001)(5250100002)(316002)(97736004)(2501003)(6116002)(1076002)(3846002)(81166006)(6436002)(6506007)(6486002)(26005)(72206003)(81156014)(53936002)(102836004)(478600001)(10290500003)(8676002)(107886003)(6666003)(4326008)(3660700001)(66066001)(25786009)(2950100002)(86612001)(36756003)(54906003)(110136005)(3280700002)(7736002)(305945005)(5660300001)(76176011)(68736007)(22452003)(10090500001)(105586002)(106356001)(99286004)(22906009)(217873001)(19627235001);DIR:OUT;SFP:1102;SCL:1;SRVR:DM5PR2101MB0920;H:DM5PR2101MB1032.namprd21.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1; x-microsoft-antispam-message-info: 4JvDT1hf8M9fW2nyJjjwWSyGgJLIcWMhQVci8O4KhcHx0Yinj+CK7i7NePgQOcHk6iC6Fi+pjMs5LMfB0nJ97+sgeavXF2E7VQHoSYabiRRoWh7GKZdOJAml5TDPbT4w7yA9yDWr4WO+k0se0xbdIfPVTuUeUMMx6Pr/C74zU8WO9mgu6FldHDMiRGMvkVb0zihvtDMBdcc52n594aw7E9S1ZhT6PcMMLd/4J4Z4SrqL00GS2Dfier9Kr6v680QItyLokupdzV6rAl2wbHvtxTTRv/I84Ww8p47c9cNENgkg8xu0iUQSXnPrtbAI/nvGDMzV9e8ApYitU8ee22fnGA== spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: 5ca58f72-aab9-48b0-cd7a-08d58db369f4 X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Mar 2018 16:05:36.4784 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB0920 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Grygorii Strashko [ Upstream commit 48f5bccc60675f8426a6159935e8636a1fd89f56 ] When users set flow control using ethtool the bits are set properly in the CPGMAC_SL MACCONTROL register, but the FIFO depth in the respective Port n Maximum FIFO Blocks (Pn_MAX_BLKS) registers remains set to the minimum size reset value. When receive flow control is enabled on a port, the port's associated FIFO block allocation must be adjusted. The port RX allocation must increase to accommodate the flow control runout. The TRM recommends numbers of 5 or 6. Hence, apply required Port FIFO configuration to Pn_MAX_BLKS.Pn_TX_MAX_BLKS=3D0xF and Pn_MAX_BLKS.Pn_RX_MAX_BLKS=3D0x5 durin= g interface initialization. Cc: Schuyler Patton Signed-off-by: Grygorii Strashko Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/ti/cpsw.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.= c index fc958067d10a..6bf3f82e8a4a 100644 --- a/drivers/net/ethernet/ti/cpsw.c +++ b/drivers/net/ethernet/ti/cpsw.c @@ -280,6 +280,10 @@ struct cpsw_ss_regs { /* Bit definitions for the CPSW1_TS_SEQ_LTYPE register */ #define CPSW_V1_SEQ_ID_OFS_SHIFT 16 =20 +#define CPSW_MAX_BLKS_TX 15 +#define CPSW_MAX_BLKS_TX_SHIFT 4 +#define CPSW_MAX_BLKS_RX 5 + struct cpsw_host_regs { u32 max_blks; u32 blk_cnt; @@ -1126,11 +1130,23 @@ static void cpsw_slave_open(struct cpsw_slave *slav= e, struct cpsw_priv *priv) switch (priv->version) { case CPSW_VERSION_1: slave_write(slave, TX_PRIORITY_MAPPING, CPSW1_TX_PRI_MAP); + /* Increase RX FIFO size to 5 for supporting fullduplex + * flow control mode + */ + slave_write(slave, + (CPSW_MAX_BLKS_TX << CPSW_MAX_BLKS_TX_SHIFT) | + CPSW_MAX_BLKS_RX, CPSW1_MAX_BLKS); break; case CPSW_VERSION_2: case CPSW_VERSION_3: case CPSW_VERSION_4: slave_write(slave, TX_PRIORITY_MAPPING, CPSW2_TX_PRI_MAP); + /* Increase RX FIFO size to 5 for supporting fullduplex + * flow control mode + */ + slave_write(slave, + (CPSW_MAX_BLKS_TX << CPSW_MAX_BLKS_TX_SHIFT) | + CPSW_MAX_BLKS_RX, CPSW2_MAX_BLKS); break; } =20 --=20 2.14.1