From mboxrd@z Thu Jan 1 00:00:00 1970 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=-12.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,PDS_BAD_THREAD_QP_64,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 92C87C47082 for ; Fri, 4 Jun 2021 02:08:14 +0000 (UTC) Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by mail.kernel.org (Postfix) with ESMTP id 115FE613FA for ; Fri, 4 Jun 2021 02:08:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 115FE613FA Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=dev-bounces@dpdk.org Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 41F634068F; Fri, 4 Jun 2021 04:08:13 +0200 (CEST) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by mails.dpdk.org (Postfix) with ESMTP id D95834003C for ; Fri, 4 Jun 2021 04:08:11 +0200 (CEST) IronPort-SDR: SIhLYl8rW5zQGF0l4CJyRAPdk8fa8h4/4rkEQzduASvJmVePgdFat4UIjmYGmXUX/V5PlN/OFK KK/brF8vnS7Q== X-IronPort-AV: E=McAfee;i="6200,9189,10004"; a="204017372" X-IronPort-AV: E=Sophos;i="5.83,246,1616482800"; d="scan'208";a="204017372" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Jun 2021 19:07:54 -0700 IronPort-SDR: VAGA0RMoZ64sQ0NXH3QSjHhKngPKE+unL5UXbm44CoIABA+InHGo813bkbIdHMz2ZdWjJsM0nX q75szSkaMVuw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.83,246,1616482800"; d="scan'208";a="550381867" Received: from orsmsx602.amr.corp.intel.com ([10.22.229.15]) by orsmga004.jf.intel.com with ESMTP; 03 Jun 2021 19:07:52 -0700 Received: from orsmsx611.amr.corp.intel.com (10.22.229.24) by ORSMSX602.amr.corp.intel.com (10.22.229.15) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.4; Thu, 3 Jun 2021 19:07:52 -0700 Received: from ORSEDG602.ED.cps.intel.com (10.7.248.7) by orsmsx611.amr.corp.intel.com (10.22.229.24) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2242.4 via Frontend Transport; Thu, 3 Jun 2021 19:07:52 -0700 Received: from NAM04-MW2-obe.outbound.protection.outlook.com (104.47.73.177) by edgegateway.intel.com (134.134.137.103) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.1.2242.4; Thu, 3 Jun 2021 19:07:52 -0700 ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=fthak0vxtG0RdMq2yuFtlgBUknnGpNyeGWPBEJGpDCYhOcZLzRqhgN8rUsOzxsNJATB2hPzqMmkZeHjYqm+SB6qmwkyw78pBsTF/3xjiIWAgQBtCXsai0K5OiOC1G9iIBSMSZOKG24CkucKUWgRJadCrkg7Zb6FRjBM85bku1r+WHh7T+pOI+CE0LIuasIFzMI3CUlRDNmJJ67tTszauTZR0QarkcDkhY8JUcu3Hb/d7AhmxA9nQKZXpkjgcDF6kx6soct6sh8NBYb1qY2aPW33ObwGR6Tre0ND3RmTozIU9vgZVn+VwnfdFmJML8WYS/DE5hvQMiQ8/Y4P/Q6dtwA== 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=vU7NcZ913M8U20G1krQgiU4c1NzGDyL8e/FqbeGV0Cc=; b=SzJMy56hHpVOyWncXl74AdnbyVmdCwPzfliaQ+e8WSVb6lYV0MFMs26d6mqlIuoB2iSleKyLHI57alsd4MJtUdHajN0qd0pGQjuqXXbMVEollkr6Rgw4587VNqaCGYPRd5NEItB8xaqXARxqd58/pwIhGmptQKX/DlyT7RNvianw3zyPTrGVK7FAQzoKXJwNcZJgmWdI3W5MxxB1Lszq/iBoNVJE4ICMJ4F+xHsXZlh8kNbH3klN5s0Lr3SHOmrbL+pWwmjqepiVwjEl96HtoEFxe4eTxOBGzLgU9pVSargmzDI1Q0hqdls/8tZK5PEuHI+jvHOtLr9l1amC/y7dXQ== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=intel.com; dmarc=pass action=none header.from=intel.com; dkim=pass header.d=intel.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=intel.onmicrosoft.com; s=selector2-intel-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=vU7NcZ913M8U20G1krQgiU4c1NzGDyL8e/FqbeGV0Cc=; b=lClQ9YgUe/MrbgbON5J0eJg4IR19AvlB8x8PKcf7uskwW5KQla2lTXodSs02lpp2KWWzm4N8x1xKGx6G01I255u7zOc3jWdG1xaHLy6dbxy0EDc0fqbwai5TkBoX//smbxlcsZw0YcHTMNK4W60T+xVKUFFr+Kst8217amhriu0= Received: from MN2PR11MB3807.namprd11.prod.outlook.com (2603:10b6:208:f0::24) by MN2PR11MB3791.namprd11.prod.outlook.com (2603:10b6:208:f9::14) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4173.20; Fri, 4 Jun 2021 02:07:50 +0000 Received: from MN2PR11MB3807.namprd11.prod.outlook.com ([fe80::55a3:215a:f054:6b52]) by MN2PR11MB3807.namprd11.prod.outlook.com ([fe80::55a3:215a:f054:6b52%5]) with mapi id 15.20.4173.030; Fri, 4 Jun 2021 02:07:50 +0000 From: "Xing, Beilei" To: "Wang, Haiyue" , "dev@dpdk.org" CC: "Zhang, Qi Z" , "Wang, Liang-min" , "david.marchand@redhat.com" , "Wu, Jingjing" Thread-Topic: [PATCH v7 2/3] net/iavf: enable PCI bus master after reset Thread-Index: AQHXUD5jdgFGOqn0o0WNFnCpaPMGaqsDLEGw Date: Fri, 4 Jun 2021 02:07:50 +0000 Message-ID: References: <20210421050243.130585-1-haiyue.wang@intel.com> <20210524012346.496560-1-haiyue.wang@intel.com> <20210524012346.496560-3-haiyue.wang@intel.com> In-Reply-To: <20210524012346.496560-3-haiyue.wang@intel.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: intel.com; dkim=none (message not signed) header.d=none;intel.com; dmarc=none action=none header.from=intel.com; x-originating-ip: [192.102.204.55] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 2aa62ee6-a291-4c8d-f214-08d926fd8e1b x-ms-traffictypediagnostic: MN2PR11MB3791: x-ld-processed: 46c98d88-e344-4ed4-8496-4ed7712e255d,ExtAddr x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:5236; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; x-microsoft-antispam-message-info: 7rIge6GfjEE0dK4QlHE88IbS/LbLsz1Gbw0QewBTy1WnqMOX9QxhpkqfHrJeh1vJbA0GSd4xFnEp+L/s3gYgsQWV41qQQl7yp6Js3rQhPg4fHIGQsA3/nbVVmfjxIQXESI/jqCqMsQXx/84n19RjuYmPAAC4XMsvTV9VsB/tJPJeYx6fa8LOM5lBukqgwuzE+GdB8fpMWi6zU7ayvH8dlDEZ8RWQG6rb3VTeTguMtjLLabvu9rItVKpa4kQVDGX7eM29xNu4mVEGmf4G1/DVE/O81jx7CucF2tErrxbIb5wqNvxPrWgSwHJdLVS/jxaiFJLeOFZgzN2z8EFnHrQPUhhyWXIbtL/+vSHYx5MEjTuT7STFhODJK8HyX6yVMNnBAowCYEdb6kG3E5Ustvzz7av5GC6Xj3zjEfZFIHmFJ+7iJJ38ATboNDZ7+qBQtWPI/lAhZ5gPnaohI2seI0Mo8qF/H6er7WFkMQBxYZZdHHnLplTLid+DF93ZqeGQa3ZTmsnA4CxFQgGqsHmEbsWjXlavzYnfaC8ouJRXbtCAR7KnJVJW7Cw4pQNqGdqDuBizSLo8M+G+50jPPJEZ+zP3Vx9zMElhOihzoA3k9i/mQ3c= x-forefront-antispam-report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:MN2PR11MB3807.namprd11.prod.outlook.com; PTR:; CAT:NONE; SFS:(366004)(376002)(136003)(396003)(39860400002)(346002)(4326008)(316002)(2906002)(83380400001)(7696005)(53546011)(55016002)(6506007)(26005)(8676002)(9686003)(66946007)(66446008)(66556008)(5660300002)(76116006)(66476007)(8936002)(186003)(64756008)(478600001)(107886003)(52536014)(33656002)(86362001)(71200400001)(122000001)(38100700002)(54906003)(110136005); DIR:OUT; SFP:1102; x-ms-exchange-antispam-messagedata: =?us-ascii?Q?dYgugleDjIHaiNCpgqlSQ95h0+ulOn/6J81jQmuC0HAEf/qAoB4BV4dkO6i4?= =?us-ascii?Q?28OnOrDM9pWCPglvVM71e47DriGbkU0hrtNr2QD1HS71o1+IFB72ux2NDZp4?= =?us-ascii?Q?EqNwZ5OrO89i61ga2enpZDiS4tUOKRsjNzGAjJ6/mcSGNcvqJk0GapIeZ0b2?= =?us-ascii?Q?Q5po+AYk1tqO7VmDCdcgKZVrPNL8XFX9oLSaC2l52IDUlD+RN+5Ba/M2iRSZ?= =?us-ascii?Q?YunMjN3+Kmr2IxV5DFQQWAlukIQbJZ9MZCCT97Ukm/0bOfZglN2+MSoc8a23?= =?us-ascii?Q?ZXFxwjR9hey3qgaGT9/e5IyfnD7vtuty1PZzzd1fsKQlEFITAHA5heir9Qlq?= =?us-ascii?Q?jV4zlFMUpV8kwKVYBuX11vE8WZNq05i6z3eiKRfuiC2YhqGbBXqX3ZikUqUe?= =?us-ascii?Q?nRqXlngCvMmCZFK547p/ygJBB+8sKVwGbgz8tvhFAY9wz3+T8rIv2z058GTY?= =?us-ascii?Q?TA33U1CKTuNXRF0NrhJBfH0pMP/vO1fAZbytk+QPp23A69FpD45lgon4r4Ed?= =?us-ascii?Q?+6PDtUqGwlw/nI8fhqOi1kpj63zpIYpnuZQCJpGNyeaXAk9hzGzMAL/nc91d?= =?us-ascii?Q?qOSdX5kRMdClumTKoOzCp539AxV8mF8yQh+D1F0zJ17kdxnQ85rkhQHshngP?= =?us-ascii?Q?oPsIrXzqj6O81m2PKyKIZOJIkT/m6C/fqCvNiklaXrecQHSW5YEu7Rhewp7l?= =?us-ascii?Q?lP61heZk2GWQ5dy8hBRE0ir2n7zSy8UYBSP32rpwUTR1X6pc3hnzWWGRlFiV?= =?us-ascii?Q?CRvCW+pT1vziy3Ip1Nxm9G5auIuzAXXnZKi6wCVg92KBx2Cjf0I9ZARX5h2o?= =?us-ascii?Q?mfFCqmFdc8ZD2N1xx0X6Mhfs0+92xBNSk85YW0cmUeJZBn4shzUtFkPA7TIo?= =?us-ascii?Q?nNiTxa6fXuVzlPT0Xgs70lIWC6tO3ZFXWFgqUJKzrClKwsz0+mFK88CyW4qU?= =?us-ascii?Q?7QMnyolRfoO1bQ3xRVA2R+ed3LqHUbgVyNXcjNa/q8hwo+Wx4DnOd4CLkxh3?= =?us-ascii?Q?+5CWEIAuYxm1qtQvYmIKAqFStzNEsNnEDNq8J1ORc0JmmF5hfvvyh7xASrWg?= =?us-ascii?Q?MkOr00THxGH+yMNl+nPAS/BuHZg62T5pf4emCSQyJcD6dulpjeAJMdBfNjJ7?= =?us-ascii?Q?s9CmSM/omKPOaf4OiCw0z/HCgoqImTi0GIKmjLsEykOaeCbTAOfKOyw4l7IU?= =?us-ascii?Q?1qsV7D1mj7IkW+X10RYcRHDfwwaIn16m3gRLvnhPX98EKM3WXMo70ZF2KOlH?= =?us-ascii?Q?Ao+QpsQqnnhnU+gC5KLTfrpew/Ke50Rm/pJl4jsh+2SCOVZheDrxdkVHdBol?= =?us-ascii?Q?8zFizp67bBNUYIB1Xb2dzh/d?= Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MN2PR11MB3807.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 2aa62ee6-a291-4c8d-f214-08d926fd8e1b X-MS-Exchange-CrossTenant-originalarrivaltime: 04 Jun 2021 02:07:50.1054 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: cLP7sm6D4s2rZgnUnG4yYtKV9StIEnOdPypEkgpmfOhv3cJy0PS5Li9orSogANkj3zQaRl6/E/2kJbf6FQoP5A== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR11MB3791 X-OriginatorOrg: intel.com Subject: Re: [dpdk-dev] [PATCH v7 2/3] net/iavf: enable PCI bus master after reset X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" > -----Original Message----- > From: Wang, Haiyue > Sent: Monday, May 24, 2021 9:24 AM > To: dev@dpdk.org > Cc: Zhang, Qi Z ; Wang, Liang-min min.wang@intel.com>; david.marchand@redhat.com; Wang, Haiyue > ; Wu, Jingjing ; Xing, Beil= ei > > Subject: [PATCH v7 2/3] net/iavf: enable PCI bus master after reset >=20 > The VF reset can be triggered by the PF reset event, then the PCI bus mas= ter > will be cleared, the VF will be not allowed to issue any Memory or I/O > Requests. >=20 > So after the reset event is detected, always enable the PCI bus master. > And if failed, the device or system may be in an invalid state, so keep t= he VF > reset state to mark it as I/O error. >=20 > Signed-off-by: Haiyue Wang > --- > drivers/net/iavf/iavf_ethdev.c | 10 +++++++++- > 1 file changed, 9 insertions(+), 1 deletion(-) >=20 > diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethde= v.c > index d688c31cfb..a7ef7a6d4d 100644 > --- a/drivers/net/iavf/iavf_ethdev.c > +++ b/drivers/net/iavf/iavf_ethdev.c > @@ -2356,7 +2356,15 @@ iavf_dev_close(struct rte_eth_dev *dev) > rte_free(vf->aq_resp); > vf->aq_resp =3D NULL; >=20 > - vf->vf_reset =3D false; > + /* > + * If the VF is reset via VFLR, the device will be knocked out of bus > + * master mode, and the driver will fail to recover from the reset. Fix > + * this by enabling bus mastering after every reset. In a non-VFLR > case, > + * the bus master bit will not be disabled, and this call will have no > + * effect. > + */ > + if (vf->vf_reset && !rte_pci_set_bus_master(pci_dev, true)) > + vf->vf_reset =3D false; >=20 > return ret; > } > -- > 2.31.1 Acked-by: Beilei Xing