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=-9.7 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY,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 B0586C5DF60 for ; Tue, 5 Nov 2019 16:21:25 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 79EDB2087E for ; Tue, 5 Nov 2019 16:21:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="LgdzIgI2" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 79EDB2087E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mellanox.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.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=uwghfE9qk2nyq8OOoovTAvsMexBs9aSJ8w51n0BOK+0=; b=LgdzIgI2e+cY9V OMc3sJ6E4Pmjaw6kBtJsGsSVFiG0pYCmALE0BRZVG+RNpGp26mkLRr0Ju9mTmVV1Dkhpo/yZ2kfKI NWtbtDr1vdqX4LSjgloEZnBaJlHQnjG4sZMxODMJ00s1lftxnTQSRgbgV2N194UzBnV0utNC+cCOS 2nuodf99IoJFTAU/56a+J0k5AISA0qSnmaX5cXJAnFLDkKuRlYT3N1TJpU2Q0wkZ3BJrAqrjolEwX uHqwQvCNH7Jh20Xj7wBSJ3/MyztGEKm8sFrUlyE2OJWD+m5hLooIL50V+VdmhHQOXqhcaDb7eQsmu CunGANMc3/r19SO1IGqA==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iS1a4-0004Cz-94; Tue, 05 Nov 2019 16:21:20 +0000 Received: from mail-il-dmz.mellanox.com ([193.47.165.129] helo=mellanox.co.il) by bombadil.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1iS1ZO-0003S1-V9 for linux-nvme@lists.infradead.org; Tue, 05 Nov 2019 16:20:43 +0000 Received: from Internal Mail-Server by MTLPINE1 (envelope-from maxg@mellanox.com) with ESMTPS (AES256-SHA encrypted); 5 Nov 2019 18:20:28 +0200 Received: from mtr-vdi-031.wap.labs.mlnx. (mtr-vdi-031.wap.labs.mlnx [10.209.102.136]) by labmailer.mlnx (8.13.8/8.13.8) with ESMTP id xA5GKQm5013132; Tue, 5 Nov 2019 18:20:28 +0200 From: Max Gurtovoy To: linux-nvme@lists.infradead.org, kbusch@kernel.org, hch@lst.de, sagi@grimberg.me Subject: [PATCH 08/15] nvmet: Add metadata characteristics for a namespace Date: Tue, 5 Nov 2019 18:20:19 +0200 Message-Id: <20191105162026.183901-10-maxg@mellanox.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20191105162026.183901-1-maxg@mellanox.com> References: <20191105162026.183901-1-maxg@mellanox.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20191105_082039_429146_BA7856D2 X-CRM114-Status: UNSURE ( 9.49 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-nvme@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: vladimirk@mellanox.com, idanb@mellanox.com, israelr@mellanox.com, shlomin@mellanox.com, oren@mellanox.com, maxg@mellanox.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-nvme" Errors-To: linux-nvme-bounces+linux-nvme=archiver.kernel.org@lists.infradead.org From: Israel Rukshin This is a preparation for adding metadata (T10-PI) over fabric support. Signed-off-by: Israel Rukshin Reviewed-by: Max Gurtovoy --- drivers/nvme/target/io-cmd-bdev.c | 21 +++++++++++++++++++++ drivers/nvme/target/nvmet.h | 3 +++ 2 files changed, 24 insertions(+) diff --git a/drivers/nvme/target/io-cmd-bdev.c b/drivers/nvme/target/io-cmd-bdev.c index b6fca0e..b6122aa7 100644 --- a/drivers/nvme/target/io-cmd-bdev.c +++ b/drivers/nvme/target/io-cmd-bdev.c @@ -50,6 +50,7 @@ void nvmet_bdev_set_limits(struct block_device *bdev, struct nvme_id_ns *id) int nvmet_bdev_ns_enable(struct nvmet_ns *ns) { int ret; + struct blk_integrity *bi; ns->bdev = blkdev_get_by_path(ns->device_path, FMODE_READ | FMODE_WRITE, NULL); @@ -64,6 +65,26 @@ int nvmet_bdev_ns_enable(struct nvmet_ns *ns) } ns->size = i_size_read(ns->bdev->bd_inode); ns->blksize_shift = blksize_bits(bdev_logical_block_size(ns->bdev)); + + ns->prot_type = 0; + bi = bdev_get_integrity(ns->bdev); + if (bi) { + ns->ms = bi->tuple_size; + if (bi->profile == &t10_pi_type1_crc) { + ns->prot_type = NVME_NS_DPS_PI_TYPE1; + } else if (bi->profile == &t10_pi_type3_crc) { + ns->prot_type = NVME_NS_DPS_PI_TYPE3; + } else { + pr_err("block device %s: unsupported metadata type\n", + ns->device_path); + return -EINVAL; + } + } else { + ns->ms = 0; + } + + pr_debug("ms %d pi_type %d\n", ns->ms, ns->prot_type); + return 0; } diff --git a/drivers/nvme/target/nvmet.h b/drivers/nvme/target/nvmet.h index 8433218..8ae7c70 100644 --- a/drivers/nvme/target/nvmet.h +++ b/drivers/nvme/target/nvmet.h @@ -19,6 +19,7 @@ #include #include #include +#include #define NVMET_ASYNC_EVENTS 4 #define NVMET_ERROR_LOG_SLOTS 128 @@ -76,6 +77,8 @@ struct nvmet_ns { int use_p2pmem; struct pci_dev *p2p_dev; + int prot_type; + int ms; }; static inline struct nvmet_ns *to_nvmet_ns(struct config_item *item) -- 1.8.3.1 _______________________________________________ Linux-nvme mailing list Linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme