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=-16.5 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,MSGID_FROM_MTA_HEADER,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 D39C3C5519F for ; Wed, 25 Nov 2020 14:11:00 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 54FF62076B for ; Wed, 25 Nov 2020 14:11:00 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=amdcloud.onmicrosoft.com header.i=@amdcloud.onmicrosoft.com header.b="nZX0aRV0" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 54FF62076B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=amd.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=amd-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DD3B36E9FA; Wed, 25 Nov 2020 14:10:59 +0000 (UTC) Received: from NAM12-MW2-obe.outbound.protection.outlook.com (mail-mw2nam12on2058.outbound.protection.outlook.com [40.107.244.58]) by gabe.freedesktop.org (Postfix) with ESMTPS id 62C996E9FA for ; Wed, 25 Nov 2020 14:10:59 +0000 (UTC) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=oMySBWoFkqGQbJmbGga1ij9rnfzvJLmcRupPWFGqslqU6Bf42N+c6aCOIziqEF2wQchAV/TtMxVnhfEzoRIrEUDeHiCf24V05dstH+K+wDg2ELnud8Eu5NY4NpW6nQ7RYUVyKvVLdt0k3hsabfMmXvD81h4dBk1fU3zF6jml/Nzk5DZChsBjPmPvxSJbbydNQti2hXcD0TthSwNY/0Ip9lCTbA+52MpW3AaIrLxDwrVUf7D2uXKYX1VqEalofInBR/qg1WlPhGVJ6Gc1tzkP1sVqlDzuA8h52dP7LTFkB/zBvNfvEwdZ+VS5OUSeTlJ90b+umaRkDhST+OpSS1fPCw== 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=AvDlfZ/2DcmBkK4lPKwgZ+fV1tAYa7GhIDli+b5RLiQ=; b=CrmObftEWNHko5TqmteY0HpiOdUD9rwXqEHkBK0atr0ZKdUSkyJtmDBFiqOkOuHoThduoWKffVokNrzc52q1OymRYHRTyVDYCHmRnT3pdkBTEH0/uEB/E48ZizkCAekTq5ZpD9mm80AOjpUYDs/5CfF+edb3r8snyNXrbt2wl37gF9oT9yLY4Z+gnMm95FPTk/piydhojP8icQ/vaTZGiRQbt+2I+6Gl3KM4MAJlAGUFUiM4jL5d1BFw83DzSA3LI3D7rV/I8f/WigFKJXHEiRnO5n8DjkDhCXhupsBLpSC97PZ4a43i6wBCTgASMEVO+uDeqyKU554dRn4aXrzX/A== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=amd.com; dmarc=pass action=none header.from=amd.com; dkim=pass header.d=amd.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amdcloud.onmicrosoft.com; s=selector2-amdcloud-onmicrosoft-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=AvDlfZ/2DcmBkK4lPKwgZ+fV1tAYa7GhIDli+b5RLiQ=; b=nZX0aRV04fJP6L871SBtj4ywYYMKpUHDCdEyi6RhYC0wiC/OFawhmwNfz1qxqXbX/qzdFl1IxvMOPRulG1UKj/Vs4sIkclwMDh2eSUPwRnY+cI8Psxr3URUz0b+2VTidOjSr4lRncSNYn6fsjH7bnH9XA7P/m6qBCfVv/oM6X60= Authentication-Results: lists.freedesktop.org; dkim=none (message not signed) header.d=none; lists.freedesktop.org; dmarc=none action=none header.from=amd.com; Received: from BYAPR12MB3222.namprd12.prod.outlook.com (2603:10b6:a03:12c::23) by BYAPR12MB2759.namprd12.prod.outlook.com (2603:10b6:a03:61::32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3499.29; Wed, 25 Nov 2020 14:10:41 +0000 Received: from BYAPR12MB3222.namprd12.prod.outlook.com ([fe80::7c6e:b8ff:6043:9dab]) by BYAPR12MB3222.namprd12.prod.outlook.com ([fe80::7c6e:b8ff:6043:9dab%6]) with mapi id 15.20.3611.020; Wed, 25 Nov 2020 14:10:40 +0000 From: jianzh@amd.com To: amd-gfx@lists.freedesktop.org Subject: [PATCH] drm/amdgpu/SRIOV: Extend VF reset request wait period Date: Wed, 25 Nov 2020 22:10:12 +0800 Message-Id: <20201125141012.301219-1-jianzh@amd.com> X-Mailer: git-send-email 2.25.1 X-Originating-IP: [180.167.199.189] X-ClientProxiedBy: HK2PR0401CA0022.apcprd04.prod.outlook.com (2603:1096:202:2::32) To BYAPR12MB3222.namprd12.prod.outlook.com (2603:10b6:a03:12c::23) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from jg.amd.com (180.167.199.189) by HK2PR0401CA0022.apcprd04.prod.outlook.com (2603:1096:202:2::32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3611.20 via Frontend Transport; Wed, 25 Nov 2020 14:10:38 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-HT: Tenant X-MS-Office365-Filtering-Correlation-Id: 417d281a-eda3-471f-6562-08d8914be3b7 X-MS-TrafficTypeDiagnostic: BYAPR12MB2759: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:3044; X-MS-Exchange-SenderADCheck: 1 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: Zg3pPIRu2XbCmUMFgqv7jWXmqFV4RZ/TG/qygqkOjIdLb8T+cVOEcNarKktaOGI04H71J3kL1iVh2s4F76SXR8qOHF78DD/K4u3xLW1P9+zvn+2vYsCQeea4A67twC1tZEEwIM/2k2qXw5kj+VxMj/ngwbzUSTbc160YYRuyc385xgtldX+zi6Fdot399Edjkf8M4/ZsC9iII1ZZ9FmzihhK0skirnPtGv8MMs6MHJg/1BTRQYFOSfk0juyJgzAZ6S0/1oC1Q5uaACmz1ggJMVGVleoGylrTF0ipKfv8IqUogIq/0dSpKFHlFl+hYoOc X-Forefront-Antispam-Report: CIP:255.255.255.255; CTRY:; LANG:en; SCL:1; SRV:; IPV:NLI; SFV:NSPM; H:BYAPR12MB3222.namprd12.prod.outlook.com; PTR:; CAT:NONE; SFS:(4636009)(136003)(366004)(376002)(346002)(396003)(39860400002)(8936002)(5660300002)(316002)(6916009)(4326008)(66476007)(186003)(26005)(52116002)(8676002)(83380400001)(16526019)(66556008)(66946007)(36756003)(9686003)(7696005)(956004)(2616005)(2906002)(478600001)(6666004)(6486002)(1076003); DIR:OUT; SFP:1101; X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: 417d281a-eda3-471f-6562-08d8914be3b7 X-MS-Exchange-CrossTenant-AuthSource: BYAPR12MB3222.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Nov 2020 14:10:40.6724 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: SN18pwHvws5OobhvhFV/RIbaqqeR4eheFzjB5e25s8On0hoQv7NcKMqiyr8TqUrO X-MS-Exchange-Transport-CrossTenantHeadersStamped: BYAPR12MB2759 X-BeenThere: amd-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion list for AMD gfx List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andy.Zhang@amd.com, Horace.Chen@amd.com, Frank.Min@amd.com, Jiange Zhao Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: amd-gfx-bounces@lists.freedesktop.org Sender: "amd-gfx" From: Jiange Zhao In Virtualization case, when one VF is sending too many FLR requests, hypervisor would stop responding to this VF's request for a long period of time. This is called event guard. During this period of cooling time, guest driver should wait instead of doing other things. After this period of time, guest driver would resume reset process and return to normal. Currently, guest driver would wait 12 seconds and return fail if it doesn't get response from host. Solution: extend this waiting time in guest driver and poll response periodically. Signed-off-by: Jiange Zhao --- drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c | 11 ++++++++++- drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h | 2 +- drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c | 11 ++++++++++- 3 files changed, 21 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c index f5ce9a9f4cf5..d8d8c623bb74 100644 --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c @@ -187,7 +187,16 @@ static int xgpu_ai_send_access_requests(struct amdgpu_device *adev, static int xgpu_ai_request_reset(struct amdgpu_device *adev) { - return xgpu_ai_send_access_requests(adev, IDH_REQ_GPU_RESET_ACCESS); + int ret, i = 0; + + while (i < 11) { + ret = xgpu_ai_send_access_requests(adev, IDH_REQ_GPU_RESET_ACCESS); + if (!ret) + break; + i++; + } + + return ret; } static int xgpu_ai_request_full_gpu_access(struct amdgpu_device *adev, diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h index 83b453f5d717..20ee2142f9ed 100644 --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.h @@ -25,7 +25,7 @@ #define __MXGPU_AI_H__ #define AI_MAILBOX_POLL_ACK_TIMEDOUT 500 -#define AI_MAILBOX_POLL_MSG_TIMEDOUT 12000 +#define AI_MAILBOX_POLL_MSG_TIMEDOUT 6000 #define AI_MAILBOX_POLL_FLR_TIMEDOUT 5000 enum idh_request { diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c index 666ed99cc14b..0147dfe21a39 100644 --- a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c +++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c @@ -200,7 +200,16 @@ static int xgpu_nv_send_access_requests(struct amdgpu_device *adev, static int xgpu_nv_request_reset(struct amdgpu_device *adev) { - return xgpu_nv_send_access_requests(adev, IDH_REQ_GPU_RESET_ACCESS); + int ret, i = 0; + + while (i < 11) { + ret = xgpu_nv_send_access_requests(adev, IDH_REQ_GPU_RESET_ACCESS); + if (!ret) + break; + i++; + } + + return ret; } static int xgpu_nv_request_full_gpu_access(struct amdgpu_device *adev, -- 2.25.1 _______________________________________________ amd-gfx mailing list amd-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/amd-gfx