From patchwork Wed Jul 13 07:20:17 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chaitanya Kulkarni X-Patchwork-Id: 12916076 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A1463CCA482 for ; Wed, 13 Jul 2022 07:22:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233044AbiGMHWZ (ORCPT ); Wed, 13 Jul 2022 03:22:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48130 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234420AbiGMHWM (ORCPT ); Wed, 13 Jul 2022 03:22:12 -0400 Received: from NAM12-DM6-obe.outbound.protection.outlook.com (mail-dm6nam12on2081.outbound.protection.outlook.com [40.107.243.81]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C1175E2A1D; Wed, 13 Jul 2022 00:22:06 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=UTKFMF2paG6yufYTAjQFKPrKZC+TyJNFwFaCUpvcu9IqkNqZcTUZwiUDATlbfSsJfAd2WIY8LiYqDajdXA1+HbWhpmi09T3kZW8/vorzbtIagiLk3+DGCBBT3l0dCIDyQZyhsBnmE2FyIt+LgvLpofVkRJDWMTtEfS1bl1W73Lh8smjnJz4CSlvroAmK8KdEQEZM0U1b9kYwBjUPJNIsl3lZIIkt6Mj3+X3QhNTEduNkNWQS3jzrwdP63vyvACeBSw6Zh3381jkv0DlHQYAoWJeGHbuYxvZm9mQJNx5r4fFdEIC2wqj9YgFxwTJgYYLc1AMkZphYKd35H1GBKLQzjQ== 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-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=TEql+7Qc/6ZjUNhYo95lXJF79oRQEGSSmWcCMAsILWc=; b=kBwFN5nz1BpgyptWql432cPxDMsvJqxzjAnWrQMwEph8a/W1dxbtN0MHNnBbQTN7ndaNHBc+Jt0zBIX6QJBNUtqZhBCkoqhxaJddxY8f0W4mkL1U+rnAz1UUIc/WW4YtEGRP2V8X0IV7+PZnkpgshXZoSt13+iNd48aHi3UpLrwuPr1ojV7Lx3au7SssEzIvuIB9/OK6W+fvwhRiDZJ8QhpWxYcjk5tT+1VaD/CypjQqzBQY4sdFROt9BuAANwnnA8HCxns6OfIMkYIBWopkEWmuKKtYP6SKmMxUAWeiwSYOdry/nVR4fNobGLuTY8/QS8iAxUZv+CG8LZ6V/ZPHiA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass (sender ip is 12.22.5.235) smtp.rcpttodomain=kernel.dk smtp.mailfrom=nvidia.com; dmarc=pass (p=reject sp=reject pct=100) action=none header.from=nvidia.com; dkim=none (message not signed); arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=Nvidia.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=TEql+7Qc/6ZjUNhYo95lXJF79oRQEGSSmWcCMAsILWc=; b=YyhXhAdjA5wuQDL5GVdgqOge6Jct9/qwjIqBi7KzPek9pdskboRMJkR28yqlqfxE9DceCFzy7PpmvlWOaD7VqyYWuGRc1hwAfmZ5q7V1CrZ29wrW7tLrULvf/xLU9o6I5T/QeuOGzlJZL/7DKmMmdFCADINXlQRNWxWlLXa4XjPUIBH+9DleLhloQTrNtUW14aPvjafOWHG0xH96m9Q/8LVYCWpgmL5hbIStufVNhVH5vfKcSfwTcCY6uvP/ixu4G7snxmVEIEF7wF8hO1QzRktRqTP9vSkI7nawufnDfXgrXI5dInIf2LG8vplC0q0YA1hhAUEX/lk5S/Yb96QomQ== Received: from MW2PR16CA0056.namprd16.prod.outlook.com (2603:10b6:907:1::33) by BY5PR12MB4641.namprd12.prod.outlook.com (2603:10b6:a03:1f7::29) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5417.16; Wed, 13 Jul 2022 07:22:03 +0000 Received: from CO1NAM11FT065.eop-nam11.prod.protection.outlook.com (2603:10b6:907:1:cafe::b4) by MW2PR16CA0056.outlook.office365.com (2603:10b6:907:1::33) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.5417.26 via Frontend Transport; Wed, 13 Jul 2022 07:22:03 +0000 X-MS-Exchange-Authentication-Results: spf=pass (sender IP is 12.22.5.235) smtp.mailfrom=nvidia.com; dkim=none (message not signed) header.d=none;dmarc=pass action=none header.from=nvidia.com; Received-SPF: Pass (protection.outlook.com: domain of nvidia.com designates 12.22.5.235 as permitted sender) receiver=protection.outlook.com; client-ip=12.22.5.235; helo=mail.nvidia.com; pr=C Received: from mail.nvidia.com (12.22.5.235) by CO1NAM11FT065.mail.protection.outlook.com (10.13.174.62) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.20.5438.12 via Frontend Transport; Wed, 13 Jul 2022 07:22:03 +0000 Received: from rnnvmail201.nvidia.com (10.129.68.8) by DRHQMAIL107.nvidia.com (10.27.9.16) with Microsoft SMTP Server (TLS) id 15.0.1497.32; Wed, 13 Jul 2022 07:22:02 +0000 Received: from dev.nvidia.com (10.126.231.35) by rnnvmail201.nvidia.com (10.129.68.8) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.26; Wed, 13 Jul 2022 00:22:00 -0700 From: Chaitanya Kulkarni To: , , , , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , Chaitanya Kulkarni Subject: [PATCH V2 4/6] nvmet: add Verify emulation support for bdev-ns Date: Wed, 13 Jul 2022 00:20:17 -0700 Message-ID: <20220713072019.5885-5-kch@nvidia.com> X-Mailer: git-send-email 2.29.0 In-Reply-To: <20220713072019.5885-1-kch@nvidia.com> References: <20220713072019.5885-1-kch@nvidia.com> MIME-Version: 1.0 X-Originating-IP: [10.126.231.35] X-ClientProxiedBy: rnnvmail201.nvidia.com (10.129.68.8) To rnnvmail201.nvidia.com (10.129.68.8) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 8b768905-06b9-41ab-7e05-08da64a06255 X-MS-TrafficTypeDiagnostic: BY5PR12MB4641:EE_ X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:12.22.5.235;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:InfoNoRecords;CAT:NONE;SFS:(13230016)(4636009)(136003)(39860400002)(376002)(346002)(396003)(36840700001)(40470700004)(46966006)(1076003)(70586007)(186003)(8676002)(2616005)(16526019)(7416002)(316002)(107886003)(426003)(336012)(70206006)(4326008)(81166007)(6666004)(82310400005)(7696005)(47076005)(40480700001)(36756003)(41300700001)(478600001)(82740400003)(40460700003)(110136005)(54906003)(8936002)(356005)(2906002)(7406005)(36860700001)(83380400001)(15650500001)(26005)(5660300002)(2101003)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Jul 2022 07:22:03.2567 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8b768905-06b9-41ab-7e05-08da64a06255 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[12.22.5.235];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: CO1NAM11FT065.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR12MB4641 Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org Not all devices can support verify requests which can be mapped to the controller specific command. This patch adds a way to emulate REQ_OP_VERIFY for NVMeOF block device namespace. Signed-off-by: Chaitanya Kulkarni --- drivers/nvme/target/io-cmd-bdev.c | 48 ++++++++++++++++++++++++------- 1 file changed, 38 insertions(+), 10 deletions(-) diff --git a/drivers/nvme/target/io-cmd-bdev.c b/drivers/nvme/target/io-cmd-bdev.c index 82c341f90f06..aec287d3b7d7 100644 --- a/drivers/nvme/target/io-cmd-bdev.c +++ b/drivers/nvme/target/io-cmd-bdev.c @@ -446,35 +446,63 @@ static void nvmet_bdev_execute_write_zeroes(struct nvmet_req *req) } } -static void nvmet_bdev_execute_verify(struct nvmet_req *req) +static void __nvmet_req_to_verify_sectors(struct nvmet_req *req, + sector_t *sects, sector_t *nr_sects) { struct nvme_verify_cmd *verify = &req->cmd->verify; + + *sects = le64_to_cpu(verify->slba) << (req->ns->blksize_shift - 9); + *nr_sects = (((sector_t)le16_to_cpu(verify->length) + 1) << + (req->ns->blksize_shift - 9)); +} + +static void nvmet_bdev_submit_emulate_verify(struct nvmet_req *req) +{ + sector_t nr_sector; + sector_t sector; + int ret = 0; + + __nvmet_req_to_verify_sectors(req, §or, &nr_sector); + if (!nr_sector) + goto out; + + /* blkdev_issue_verify() will automatically emulate */ + ret = blkdev_issue_verify(req->ns->bdev, sector, nr_sector, + GFP_KERNEL); +out: + nvmet_req_complete(req, + blk_to_nvme_status(req, errno_to_blk_status(ret))); +} + +static void nvmet_bdev_execute_verify(struct nvmet_req *req) +{ struct bio *bio = NULL; sector_t nr_sector; sector_t sector; - int ret; + int ret = 0; if (!nvmet_check_transfer_len(req, 0)) return; + __nvmet_req_to_verify_sectors(req, §or, &nr_sector); + if (!nr_sector) + goto out; + if (!bdev_verify_sectors(req->ns->bdev)) { - nvmet_req_complete(req, NVME_SC_INTERNAL | NVME_SC_DNR); + nvmet_bdev_submit_emulate_verify(req); return; } - sector = le64_to_cpu(verify->slba) << (req->ns->blksize_shift - 9); - nr_sector = (((sector_t)le16_to_cpu(verify->length) + 1) << - (req->ns->blksize_shift - 9)); - ret = __blkdev_issue_verify(req->ns->bdev, sector, nr_sector, GFP_KERNEL, &bio); - if (bio) { + if (ret == 0 && bio) { bio->bi_private = req; bio->bi_end_io = nvmet_bio_done; submit_bio(bio); - } else { - nvmet_req_complete(req, errno_to_nvme_status(req, ret)); + return; } +out: + nvmet_req_complete(req, errno_to_nvme_status(req, ret)); } u16 nvmet_bdev_parse_io_cmd(struct nvmet_req *req)