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{ "id": 87993, "url": "https://patches.dpdk.org/api/covers/87993/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/cover/20210218211137.32154-1-Renata.Saiakhova@ekinops.com/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<20210218211137.32154-1-Renata.Saiakhova@ekinops.com>", "list_archive_url": "https://inbox.dpdk.org/dev/20210218211137.32154-1-Renata.Saiakhova@ekinops.com", "date": "2021-02-18T21:11:36", "name": "[v3,0/1] eal/interrupts: add synchronous wrapper around unregister", "submitter": { "id": 1694, "url": "https://patches.dpdk.org/api/people/1694/?format=api", "name": "Renata Saiakhova", "email": "renata.saiakhova@ekinops.com" }, "mbox": "https://patches.dpdk.org/project/dpdk/cover/20210218211137.32154-1-Renata.Saiakhova@ekinops.com/mbox/", "series": [ { "id": 15292, "url": "https://patches.dpdk.org/api/series/15292/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/list/?series=15292", "date": "2021-02-18T21:11:36", "name": "eal/interrupts: add synchronous wrapper around unregister", "version": 3, "mbox": "https://patches.dpdk.org/series/15292/mbox/" } ], "comments": "https://patches.dpdk.org/api/covers/87993/comments/", "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@inbox.dpdk.org", "Delivered-To": "patchwork@inbox.dpdk.org", "Received": [ "from mails.dpdk.org (mails.dpdk.org [217.70.189.124])\n\tby inbox.dpdk.org (Postfix) with ESMTP id 03E63A054A;\n\tThu, 18 Feb 2021 22:11:56 +0100 (CET)", "from [217.70.189.124] (localhost [127.0.0.1])\n\tby mails.dpdk.org (Postfix) with ESMTP id 7EFA840040;\n\tThu, 18 Feb 2021 22:11:56 +0100 (CET)", "from FRA01-PR2-obe.outbound.protection.outlook.com\n (mail-eopbgr120118.outbound.protection.outlook.com [40.107.12.118])\n by mails.dpdk.org (Postfix) with ESMTP id D68A44003D\n for <dev@dpdk.org>; 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dkim=none (message not signed)\n header.d=none;dpdk.org; dmarc=none action=none header.from=ekinops.com;", "From": "Renata Saiakhova <Renata.Saiakhova@ekinops.com>", "To": "", "Cc": "dev@dpdk.org,\n\tRenata Saiakhova <Renata.Saiakhova@ekinops.com>", "Date": "Thu, 18 Feb 2021 22:11:36 +0100", "Message-Id": "<20210218211137.32154-1-Renata.Saiakhova@ekinops.com>", "X-Mailer": "git-send-email 2.17.2", "Content-Type": "text/plain", "X-Originating-IP": "[91.183.184.98]", "X-ClientProxiedBy": "AM0PR04CA0098.eurprd04.prod.outlook.com\n (2603:10a6:208:be::39) To PAZP264MB1413.FRAP264.PROD.OUTLOOK.COM\n (2603:10a6:102:188::5)", "MIME-Version": "1.0", "X-MS-Exchange-MessageSentRepresentingType": "1", "X-MS-PublicTrafficType": "Email", "X-MS-Office365-Filtering-Correlation-Id": "943e334d-632e-4ffc-683a-08d8d451d12a", "X-MS-TrafficTypeDiagnostic": "PAZP264MB1142:", "X-MS-Exchange-Transport-Forked": "True", "X-Microsoft-Antispam-PRVS": "\n <PAZP264MB11426953BCA6F789F704492592859@PAZP264MB1142.FRAP264.PROD.OUTLOOK.COM>", "X-MS-Oob-TLC-OOBClassifiers": "OLM:8882;", "X-MS-Exchange-SenderADCheck": "1", "X-Microsoft-Antispam": "BCL:0;", "X-Microsoft-Antispam-Message-Info": "\n 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", "X-Forefront-Antispam-Report": "CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:;\n IPV:NLI; SFV:NSPM; H:PAZP264MB1413.FRAP264.PROD.OUTLOOK.COM; PTR:; CAT:NONE;\n SFS:(376002)(39850400004)(366004)(346002)(136003)(396003)(6666004)(8676002)(956004)(8936002)(2906002)(83380400001)(4326008)(52116002)(2616005)(5660300002)(6512007)(316002)(1076003)(107886003)(109986005)(36756003)(86362001)(478600001)(26005)(66476007)(66556008)(66946007)(6506007)(16526019)(6486002)(186003)(266003);\n DIR:OUT; SFP:1102;", "X-MS-Exchange-AntiSpam-MessageData": "\n 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", "X-OriginatorOrg": "ekinops.com", "X-MS-Exchange-CrossTenant-Network-Message-Id": "\n 943e334d-632e-4ffc-683a-08d8d451d12a", "X-MS-Exchange-CrossTenant-AuthSource": "PAZP264MB1413.FRAP264.PROD.OUTLOOK.COM", "X-MS-Exchange-CrossTenant-AuthAs": "Internal", "X-MS-Exchange-CrossTenant-OriginalArrivalTime": "18 Feb 2021 21:11:54.0886 (UTC)", "X-MS-Exchange-CrossTenant-FromEntityHeader": "Hosted", "X-MS-Exchange-CrossTenant-Id": "f57b78a6-c654-4771-a72f-837275f46179", "X-MS-Exchange-CrossTenant-MailboxType": "HOSTED", "X-MS-Exchange-CrossTenant-UserPrincipalName": "\n Z99ay1bsRAo0oplWpj1ydVtOUXUuW/4AG/e8vQB2INrCxpS/L730OgMAzgod3sJLGkKmFQifQFpNecggmJ53oGWRzTwBkGfXOvxZeLasbII=", "X-MS-Exchange-Transport-CrossTenantHeadersStamped": "PAZP264MB1142", "Subject": "[dpdk-dev] [PATCH v3 0/1] eal/interrupts: add synchronous wrapper\n around unregister", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "DPDK patches and discussions <dev.dpdk.org>", "List-Unsubscribe": "<https://mails.dpdk.org/options/dev>,\n <mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://mails.dpdk.org/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<https://mails.dpdk.org/listinfo/dev>,\n <mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "For pci_vfio, while removing the device by rte_dev_remove(),\npci_vfio_disable_notifier() will call rte_intr_callback_unregister(),\nwhich may return -EAGAIN, if an interrupt source (kernel) has some active\ncallbacks right now. As a result, the callback (req notifier) can be never unregistered,\nand the corresponding descriptor (vfio_req_intr_handle.fd) can be never closed.\nThe kernel will continuously try to notify the user space using req notifier, but as\nthe device is already removed, in this case it even cannot find a bus for that\ndevice, the log is full of messages \"EAL: Cannot find bus for device (XX:XX.X)\"\n\nv3:\n* Subject line reworded\nv2:\n* Use only for pci-vfio in pci_vfio_disable_notifier()\n\nRenata Saiakhova (1):\n eal/interrupts: add synchronous wrapper around unregister\n\n drivers/bus/pci/linux/pci_vfio.c | 2 +-\n lib/librte_eal/freebsd/eal_interrupts.c | 12 ++++++++++++\n lib/librte_eal/include/rte_interrupts.h | 25 +++++++++++++++++++++++++\n lib/librte_eal/linux/eal_interrupts.c | 12 ++++++++++++\n lib/librte_eal/version.map | 1 +\n 5 files changed, 51 insertions(+), 1 deletion(-)" }