From patchwork Mon Dec 28 14:05:09 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Athani Nadeem Ladkhan X-Patchwork-Id: 11991251 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.9 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E4872C433E0 for ; Mon, 28 Dec 2020 14:07:27 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id AD24C21D94 for ; Mon, 28 Dec 2020 14:07:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org AD24C21D94 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=cadence.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.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=iV846LDNO1M8/Dezo/9R+nFyhJWLy+m8z96V9e77pDk=; b=HbOW6LJItCHV9ghcqbLXMMft3 rMTtsjZcRjUQgSK3TN+g3U/rspRPAbrRkwdbMjUa5RT031JRlMe2e7E/ahs7bm5jf0VhU/0j7oHBS n5x6KrcWJo7fDvEuOOYUSScg/H7c3wFRB4T83w+zl6bGv20WA6jwUUjc7NAHH88OM2tENGZmXOiNO m9HjaGU8ryIpS1rZ9zcYfw0JGPnDx4A9XXbS3mZo0G+r/fDZN0Ia6vDW/Ie/FJFhCIHgaFrZErakd kF8Im1CqY4kdMoe1AgXYeCSzOzkNzISABnr06fRRcAwWNH1cV0ivXjOZzHJ4vReFi17DAhbxnQEOn vEUuoh9zA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1ktt9t-0005EB-7F; Mon, 28 Dec 2020 14:06:01 +0000 Received: from mx0a-0014ca01.pphosted.com ([208.84.65.235]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1ktt9k-0005CQ-K8 for linux-arm-kernel@lists.infradead.org; Mon, 28 Dec 2020 14:05:53 +0000 Received: from pps.filterd (m0042385.ppops.net [127.0.0.1]) by mx0a-0014ca01.pphosted.com (8.16.0.43/8.16.0.43) with SMTP id 0BSDvc4i004305; Mon, 28 Dec 2020 06:05:40 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cadence.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=proofpoint; bh=pCs8ZIWLbAqar7nQCRBh7v2ZcsGi82HUlYAsqpWpDFI=; b=jufdAzaVoE44SxIDnckSoI+qTM6uSuWoHnJr90OXPvQI8kZ5ADuVJwm5wSq+SKaa5h4/ ofeLj9S+doE4azOkPIPGEUeiBk6VUYsmbITfXnJ9vc8ZsjZgd6lFvEZlAMYGu3SUyoq3 jQIB5H0LObOQcUsOQ+W4+pJQY0RYArR9Cki6RuqolPEFo8c5HwecChfOOCwI0Ftoqahr UpANO2RsNy6IgUvSzQ6wH/r/ef3ZyZ4zOVEoBLm4Iu6WsBVAPL7Bt2iqisCHsqJ+XErb xnVjt/Aef91gethQ8cx+ikTZ0FwN00Y+uxWndmpOVbWogsYo9itpfhouSSvRgoabytMc Eg== Received: from nam10-dm6-obe.outbound.protection.outlook.com (mail-dm6nam10lp2109.outbound.protection.outlook.com [104.47.58.109]) by mx0a-0014ca01.pphosted.com with ESMTP id 35p2m1be5q-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 28 Dec 2020 06:05:40 -0800 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=j3KMYQQLk1vvatrSqpjva9LFG1dMat13nttLdis2gs3qDwnJP9PMtc7Ma2C0aGoT2TTgNsh2alSKx0xXORdfyIxdunDT7YRVN/ANkR9p8UhVZbJgDAPLxT6qqJd0UtEDbkRnm2bdXZeR4QV0aTxWUCyaJVAwTJ+o7xaUbcrwFzGuqPJsU75swAgR/e+Wn1JBcH3npSTSYbzytKTx/VVqw9DokGuP9RcAmVhXuOCNZgFrz5qQeobk9ZzeXdy0fxaB2rTPcAZMwarxzutfNiBjtOu5AK+8Q0gyKzvaxdv/QBZPCGfHpbUNY1/Mpqj4GaboMT3GI+6Rn0HDNcjDBzCG3A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=pCs8ZIWLbAqar7nQCRBh7v2ZcsGi82HUlYAsqpWpDFI=; b=mw2K2gSKxhUQM+vmkLlq3WopaYK/uhiyhbpKsOptoyEW307tBioGa7yQqXA89MIhBYWrdqQXjLpFtCprKo9OYzMbEqiqgWS/2s86bHeYwUVpbWwyTpY9KpR5zPVqDKvbB80/gBHUZ9srwkuDk0m2b0DDTyGOuu0x4fLjLlAo1C84BcWMA7G0P3W7PgOhcsH0q/thAnfhZMAEXKRTvs740las99qwvPjv1FWA3ylWNiff58RvL+uXERALLgXDZ//jsz9GQAHCLM8r4+JrMOdhueR6k3Y4hw2L7JqNeKvhQ+2Vd3rNDPts2NYaKRw9cUdjPdbx1zRecIB2EmLnzohkrg== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 199.43.4.23) smtp.rcpttodomain=google.com smtp.mailfrom=cadence.com; dmarc=pass (p=none sp=none pct=100) action=none header.from=cadence.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=cadence.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=pCs8ZIWLbAqar7nQCRBh7v2ZcsGi82HUlYAsqpWpDFI=; b=NuzZSO/NcRdpBuT9otPj4Clt4uba1s+z1Ja7WRl42aW1SAQpBdmqWNCaJviLmg+7UPHDcwrzzJ4t1uTG+R7ZGZhqLR8KbwQpHaYkv8fLk5C7AdQpq5hzeWO+0/zwrrSELT974f2vyf/jATO8jKotRL2ZR+4CFHee14YCllo4jhg= Received: from DM6PR06CA0052.namprd06.prod.outlook.com (2603:10b6:5:54::29) by CY4PR0701MB3620.namprd07.prod.outlook.com (2603:10b6:910:90::18) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3700.28; Mon, 28 Dec 2020 14:05:37 +0000 Received: from DM6NAM12FT062.eop-nam12.prod.protection.outlook.com (2603:10b6:5:54:cafe::e5) by DM6PR06CA0052.outlook.office365.com (2603:10b6:5:54::29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3700.27 via Frontend Transport; Mon, 28 Dec 2020 14:05:37 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 199.43.4.23) smtp.mailfrom=cadence.com; google.com; dkim=none (message not signed) header.d=none;google.com; dmarc=pass action=none header.from=cadence.com; Received-SPF: Pass (protection.outlook.com: domain of cadence.com designates 199.43.4.23 as permitted sender) receiver=protection.outlook.com; client-ip=199.43.4.23; helo=rmmaillnx1.cadence.com; Received: from rmmaillnx1.cadence.com (199.43.4.23) by DM6NAM12FT062.mail.protection.outlook.com (10.13.178.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3700.20 via Frontend Transport; Mon, 28 Dec 2020 14:05:36 +0000 Received: from maileu3.global.cadence.com (maileu3.cadence.com [10.160.88.99]) by rmmaillnx1.cadence.com (8.14.4/8.14.4) with ESMTP id 0BSE5XBO030293 (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256 verify=OK); Mon, 28 Dec 2020 09:05:34 -0500 X-CrossPremisesHeadersFilteredBySendConnector: maileu3.global.cadence.com Received: from maileu3.global.cadence.com (10.160.88.99) by maileu3.global.cadence.com (10.160.88.99) with Microsoft SMTP Server (TLS) id 15.0.1367.3; Mon, 28 Dec 2020 15:05:32 +0100 Received: from vleu-orange.cadence.com (10.160.88.83) by maileu3.global.cadence.com (10.160.88.99) with Microsoft SMTP Server (TLS) id 15.0.1367.3 via Frontend Transport; Mon, 28 Dec 2020 15:05:32 +0100 Received: from vleu-orange.cadence.com (localhost.localdomain [127.0.0.1]) by vleu-orange.cadence.com (8.14.4/8.14.4) with ESMTP id 0BSE5Wg9014705; Mon, 28 Dec 2020 15:05:32 +0100 Received: (from nadeem@localhost) by vleu-orange.cadence.com (8.14.4/8.14.4/Submit) id 0BSE5W1Q014704; Mon, 28 Dec 2020 15:05:32 +0100 From: Nadeem Athani To: , , , , , , , , Subject: [PATCH v6 1/2] PCI: cadence: Retrain Link to work around Gen2 training defect. Date: Mon, 28 Dec 2020 15:05:09 +0100 Message-ID: <20201228140510.14641-2-nadeem@cadence.com> X-Mailer: git-send-email 2.15.0 In-Reply-To: <20201228140510.14641-1-nadeem@cadence.com> References: <20201228140510.14641-1-nadeem@cadence.com> MIME-Version: 1.0 X-OrganizationHeadersPreserved: maileu3.global.cadence.com X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 641dfbfa-2c7a-4148-1d25-08d8ab39a6aa X-MS-TrafficTypeDiagnostic: CY4PR0701MB3620: X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:4941; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:199.43.4.23; CTRY:US; LANG:en; SCL:1; SRV:; IPV:CAL; SFV:NSPM; H:rmmaillnx1.cadence.com; PTR:InfoDomainNonexistent; CAT:NONE; SFS:(4636009)(396003)(136003)(346002)(376002)(39860400002)(36092001)(46966006)(2906002)(42186006)(86362001)(70586007)(4326008)(47076005)(36756003)(107886003)(2616005)(70206006)(54906003)(110136005)(82740400003)(83380400001)(81166007)(426003)(26005)(336012)(8936002)(1076003)(5660300002)(478600001)(316002)(6666004)(8676002)(186003)(356005)(82310400003)(2101003); DIR:OUT; SFP:1101; X-OriginatorOrg: cadence.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Dec 2020 14:05:36.9837 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 641dfbfa-2c7a-4148-1d25-08d8ab39a6aa X-MS-Exchange-CrossTenant-Id: d36035c5-6ce6-4662-a3dc-e762e61ae4c9 X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=d36035c5-6ce6-4662-a3dc-e762e61ae4c9; Ip=[199.43.4.23]; Helo=[rmmaillnx1.cadence.com] X-MS-Exchange-CrossTenant-AuthSource: DM6NAM12FT062.eop-nam12.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR0701MB3620 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.343, 18.0.737 definitions=2020-12-28_11:2020-12-28, 2020-12-28 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_check_notspam policy=outbound_check score=0 bulkscore=0 lowpriorityscore=0 suspectscore=0 impostorscore=0 malwarescore=0 spamscore=0 adultscore=0 clxscore=1015 mlxlogscore=999 mlxscore=0 phishscore=0 priorityscore=1501 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2009150000 definitions=main-2012280088 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201228_090552_856617_8F3E9F95 X-CRM114-Status: GOOD ( 19.72 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mparab@cadence.com, nadeem@cadence.com, pthombar@cadence.com, sjakhade@cadence.com Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Moving the function above to remove compilation error. No changes in function. Signed-off-by: Nadeem Athani --- drivers/pci/controller/cadence/pcie-cadence-host.c | 33 +++++++++++----------- 1 file changed, 16 insertions(+), 17 deletions(-) diff --git a/drivers/pci/controller/cadence/pcie-cadence-host.c b/drivers/pci/controller/cadence/pcie-cadence-host.c index 811c1cb2e8de..9f7aa718c8d4 100644 --- a/drivers/pci/controller/cadence/pcie-cadence-host.c +++ b/drivers/pci/controller/cadence/pcie-cadence-host.c @@ -77,6 +77,22 @@ static struct pci_ops cdns_pcie_host_ops = { .write = pci_generic_config_write, }; +static int cdns_pcie_host_wait_for_link(struct cdns_pcie *pcie) +{ + struct device *dev = pcie->dev; + int retries; + + /* Check if the link is up or not */ + for (retries = 0; retries < LINK_WAIT_MAX_RETRIES; retries++) { + if (cdns_pcie_link_up(pcie)) { + dev_info(dev, "Link up\n"); + return 0; + } + usleep_range(LINK_WAIT_USLEEP_MIN, LINK_WAIT_USLEEP_MAX); + } + + return -ETIMEDOUT; +} static int cdns_pcie_host_init_root_port(struct cdns_pcie_rc *rc) { @@ -398,23 +414,6 @@ static int cdns_pcie_host_init(struct device *dev, return cdns_pcie_host_init_address_translation(rc); } -static int cdns_pcie_host_wait_for_link(struct cdns_pcie *pcie) -{ - struct device *dev = pcie->dev; - int retries; - - /* Check if the link is up or not */ - for (retries = 0; retries < LINK_WAIT_MAX_RETRIES; retries++) { - if (cdns_pcie_link_up(pcie)) { - dev_info(dev, "Link up\n"); - return 0; - } - usleep_range(LINK_WAIT_USLEEP_MIN, LINK_WAIT_USLEEP_MAX); - } - - return -ETIMEDOUT; -} - int cdns_pcie_host_setup(struct cdns_pcie_rc *rc) { struct device *dev = rc->pcie.dev;