From patchwork Thu May 14 04:46:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Klaus Jensen X-Patchwork-Id: 282793 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=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, 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 038C6C433E0 for ; Thu, 14 May 2020 04:55:53 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 DB61D205CB for ; Thu, 14 May 2020 04:55:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DB61D205CB Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=irrelevant.dk Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:41454 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jZ5uS-0001Mb-03 for qemu-devel@archiver.kernel.org; Thu, 14 May 2020 00:55:52 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56738) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jZ5ls-0001ZX-Ab; Thu, 14 May 2020 00:47:00 -0400 Received: from charlie.dont.surf ([128.199.63.193]:43852) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jZ5lr-0003lM-D7; Thu, 14 May 2020 00:46:59 -0400 Received: from apples.local (80-167-98-190-cable.dk.customer.tdc.net [80.167.98.190]) by charlie.dont.surf (Postfix) with ESMTPSA id AED66BFDA3; Thu, 14 May 2020 04:46:35 +0000 (UTC) From: Klaus Jensen To: qemu-block@nongnu.org Subject: [PATCH v6 14/20] hw/block/nvme: add namespace helpers Date: Thu, 14 May 2020 06:46:05 +0200 Message-Id: <20200514044611.734782-15-its@irrelevant.dk> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200514044611.734782-1-its@irrelevant.dk> References: <20200514044611.734782-1-its@irrelevant.dk> MIME-Version: 1.0 Received-SPF: pass client-ip=128.199.63.193; envelope-from=its@irrelevant.dk; helo=charlie.dont.surf X-detected-operating-system: by eggs.gnu.org: First seen = 2020/05/14 00:46:30 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=_AUTOLEARN X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Klaus Jensen , qemu-devel@nongnu.org, Max Reitz , Klaus Jensen , Keith Busch , Javier Gonzalez , Maxim Levitsky , =?utf-8?q?Philippe_Mathieu-Daud?= =?utf-8?b?w6k=?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Klaus Jensen Introduce some small helpers to make the next patches easier on the eye. Signed-off-by: Klaus Jensen Reviewed-by: Philippe Mathieu-Daudé Reviewed-by: Maxim Levitsky Reviewed-by: Keith Busch --- hw/block/nvme.c | 3 +-- hw/block/nvme.h | 17 +++++++++++++++++ 2 files changed, 18 insertions(+), 2 deletions(-) diff --git a/hw/block/nvme.c b/hw/block/nvme.c index c83f0bb1ab20..e24d376b0d71 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -1575,8 +1575,7 @@ static void nvme_realize(PCIDevice *pci_dev, Error **errp) id_ns->dps = 0; id_ns->lbaf[0].ds = BDRV_SECTOR_BITS; id_ns->ncap = id_ns->nuse = id_ns->nsze = - cpu_to_le64(n->ns_size >> - id_ns->lbaf[NVME_ID_NS_FLBAS_INDEX(ns->id_ns.flbas)].ds); + cpu_to_le64(nvme_ns_nlbas(n, ns)); } } diff --git a/hw/block/nvme.h b/hw/block/nvme.h index cedc8022dbb3..61dd9b23b81d 100644 --- a/hw/block/nvme.h +++ b/hw/block/nvme.h @@ -61,6 +61,17 @@ typedef struct NvmeNamespace { NvmeIdNs id_ns; } NvmeNamespace; +static inline NvmeLBAF *nvme_ns_lbaf(NvmeNamespace *ns) +{ + NvmeIdNs *id_ns = &ns->id_ns; + return &id_ns->lbaf[NVME_ID_NS_FLBAS_INDEX(id_ns->flbas)]; +} + +static inline uint8_t nvme_ns_lbads(NvmeNamespace *ns) +{ + return nvme_ns_lbaf(ns)->ds; +} + #define TYPE_NVME "nvme" #define NVME(obj) \ OBJECT_CHECK(NvmeCtrl, (obj), TYPE_NVME) @@ -97,4 +108,10 @@ typedef struct NvmeCtrl { NvmeIdCtrl id_ctrl; } NvmeCtrl; +/* calculate the number of LBAs that the namespace can accomodate */ +static inline uint64_t nvme_ns_nlbas(NvmeCtrl *n, NvmeNamespace *ns) +{ + return n->ns_size >> nvme_ns_lbads(ns); +} + #endif /* HW_NVME_H */