From patchwork Wed Apr 22 07:09:23 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Klaus Jensen X-Patchwork-Id: 11503209 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0B96417EA for ; Wed, 22 Apr 2020 07:19:53 +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 DFFCD2075A for ; Wed, 22 Apr 2020 07:19:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DFFCD2075A 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+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:45378 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jR9fk-0006rK-3U for patchwork-qemu-devel@patchwork.kernel.org; Wed, 22 Apr 2020 03:19:52 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:39834) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1jR9WE-0001NL-QC for qemu-devel@nongnu.org; Wed, 22 Apr 2020 03:10:03 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.90_1) (envelope-from ) id 1jR9WE-0007zY-Br for qemu-devel@nongnu.org; Wed, 22 Apr 2020 03:10:02 -0400 Received: from charlie.dont.surf ([128.199.63.193]:60308) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1jR9WB-0007GQ-U9; Wed, 22 Apr 2020 03:10:00 -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 3B639BFD5F; Wed, 22 Apr 2020 07:09:38 +0000 (UTC) From: Klaus Jensen To: qemu-block@nongnu.org Subject: [PATCH v3 12/16] nvme: add namespace helpers Date: Wed, 22 Apr 2020 09:09:23 +0200 Message-Id: <20200422070927.373048-13-its@irrelevant.dk> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200422070927.373048-1-its@irrelevant.dk> References: <20200422070927.373048-1-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 = 2020/04/22 02:19:11 X-ACL-Warn: Detected OS = Linux 3.11 and newer [fuzzy] X-Received-From: 128.199.63.193 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 , Beata Michalska , Klaus Jensen , qemu-devel@nongnu.org, Max Reitz , Klaus Jensen , Keith Busch , Javier Gonzalez , Maxim Levitsky , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.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 a036cfed68e3..e3a08c6fb0d1 100644 --- a/hw/block/nvme.c +++ b/hw/block/nvme.c @@ -1571,8 +1571,7 @@ 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 c1bb2a4994b6..f9f2b637bbd0 100644 --- a/hw/block/nvme.h +++ b/hw/block/nvme.h @@ -69,6 +69,17 @@ 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) @@ -105,4 +116,10 @@ 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 */