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=-9.8 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 6B507C83006 for ; Tue, 28 Apr 2020 13:12:14 +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 36EA5206A1 for ; Tue, 28 Apr 2020 13:12:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="DeTOHwxt" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 36EA5206A1 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=O7PMpwU25Gy50rPzlwx9U/kY4mHfyaDCIRq+JRLhWF4=; b=DeTOHwxt0yXvSn 7FabMYc52qIz/f9zB2l0R1CVJJGt6hjXtLRMhWs7YVDFYFX77moFtqo22tEINzMibOL66noUpfcdI VrWkhpMVm2S2+/9yo6D2ZikFkLgRoiXcKpp4mAU5PzQTqp9aGmdgF8E2wC6PErY0OCVjQlr5uIyIz N73S6cUHUpwBvnzH2fF9diRo0G/ktkT33C16FTznd0bY7/CwMUSUoXAQda8++lQtqx21t+O49G363 AzSgwWeFESpMf8crFnsL8rxw2BZHYvHFIp0XMWzm3WkqgWHN1+adrEb2ZDlRks+GniloHThYK/Zgk HHTlP+nFXMTcWAo7OjwA==; 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 1jTQ1y-0003ee-TH; Tue, 28 Apr 2020 13:12:10 +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 1jTQ1Y-0003I4-T2 for linux-nvme@lists.infradead.org; Tue, 28 Apr 2020 13:11:47 +0000 Received: from Internal Mail-Server by MTLPINE2 (envelope-from maxg@mellanox.com) with ESMTPS (AES256-SHA encrypted); 28 Apr 2020 16:11:36 +0300 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 03SDBZZ0028635; Tue, 28 Apr 2020 16:11:36 +0300 From: Max Gurtovoy To: maxg@mellanox.com, linux-nvme@lists.infradead.org, kbusch@kernel.org, hch@lst.de, sagi@grimberg.me, martin.petersen@oracle.com, jsmart2021@gmail.com, axboe@kernel.dk Subject: [PATCH 05/15] nvme: introduce max_integrity_segments ctrl attribute Date: Tue, 28 Apr 2020 16:11:25 +0300 Message-Id: <20200428131135.211521-6-maxg@mellanox.com> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20200428131135.211521-1-maxg@mellanox.com> References: <20200428131135.211521-1-maxg@mellanox.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200428_061145_349921_D2AE3189 X-CRM114-Status: GOOD ( 10.30 ) 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, shlomin@mellanox.com, israelr@mellanox.com, idanb@mellanox.com, oren@mellanox.com, nitzanc@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 This patch doesn't change any logic, and is needed as a preparation for adding PI support for fabrics drivers that will use an extended LBA format for metadata and will support more than 1 integrity segment. Signed-off-by: Max Gurtovoy Signed-off-by: Israel Rukshin Reviewed-by: Sagi Grimberg Reviewed-by: Martin K. Petersen Reviewed-by: Christoph Hellwig --- drivers/nvme/host/core.c | 11 +++++++---- drivers/nvme/host/nvme.h | 1 + drivers/nvme/host/pci.c | 6 ++++++ 3 files changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index dd59de0..b437655 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -1688,7 +1688,8 @@ static int nvme_getgeo(struct block_device *bdev, struct hd_geometry *geo) } #ifdef CONFIG_BLK_DEV_INTEGRITY -static void nvme_init_integrity(struct gendisk *disk, u16 ms, u8 pi_type) +static void nvme_init_integrity(struct gendisk *disk, u16 ms, u8 pi_type, + u32 max_integrity_segments) { struct blk_integrity integrity; @@ -1711,10 +1712,11 @@ static void nvme_init_integrity(struct gendisk *disk, u16 ms, u8 pi_type) } integrity.tuple_size = ms; blk_integrity_register(disk, &integrity); - blk_queue_max_integrity_segments(disk->queue, 1); + blk_queue_max_integrity_segments(disk->queue, max_integrity_segments); } #else -static void nvme_init_integrity(struct gendisk *disk, u16 ms, u8 pi_type) +static void nvme_init_integrity(struct gendisk *disk, u16 ms, u8 pi_type, + u32 max_integrity_segments) { } #endif /* CONFIG_BLK_DEV_INTEGRITY */ @@ -1890,7 +1892,8 @@ static void nvme_update_disk_info(struct gendisk *disk, if (ns->ms) { if (IS_ENABLED(CONFIG_BLK_DEV_INTEGRITY) && (ns->features & NVME_NS_METADATA_SUPPORTED)) - nvme_init_integrity(disk, ns->ms, ns->pi_type); + nvme_init_integrity(disk, ns->ms, ns->pi_type, + ns->ctrl->max_integrity_segments); else if (!nvme_ns_has_pi(ns)) capacity = 0; } diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index f60ca01..a9c3d82 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -229,6 +229,7 @@ struct nvme_ctrl { u32 page_size; u32 max_hw_sectors; u32 max_segments; + u32 max_integrity_segments; u16 crdt[3]; u16 oncs; u16 oacs; diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c index 4e79e41..fad9e78 100644 --- a/drivers/nvme/host/pci.c +++ b/drivers/nvme/host/pci.c @@ -2553,6 +2553,12 @@ static void nvme_reset_work(struct work_struct *work) goto out; } + /* + * We do not support an SGL for metadata (yet), so we are limited to a + * single integrity segment for the separate metadata pointer. + */ + dev->ctrl.max_integrity_segments = 1; + result = nvme_init_identify(&dev->ctrl); if (result) goto out; -- 1.8.3.1 _______________________________________________ linux-nvme mailing list linux-nvme@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-nvme