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bh=rE9OF6JGzyy16WYqRAitzHWBoYb2h0+LL0UAOO+IgQA=; b=IcPuGlC0cYcwCf+9ReeQL+bJ292wIvj36Gi1gvprYxNTmhi+BFztv33jJrdKnBaUwn LZUG8Pa2DQwEn89h75K4fkk8Z+1Ym0jOBPdB6lz+GFIS/8Kfwv6LN+twI+LFy6U1afcZ ULRueIya1nSFu6kFHjCVqwGHqguJkFXMsT7kFon45V5YO+7TUdtwGPGQRsGz0xGxxsio 2WmW+heuUsOj01FomE4LsbNzHItptnD7kZsnpaMlb1Ts5Oe6jgEo0WW+/XAukCQDIUy8 aAHPwGO9HFfPeQy3oBL6Sojq+cc/aLUjOIKbV8KDSrL/+cWi6HpWrhwUNr3k1PW3XiVu fyDA== X-Gm-Message-State: AOAM530RhaWx1N4hNR2YYl9+7p240Z126dG3XxqRzHt4837zvBLhZFG9 i9uKo34SywQ+W7g7H7I/3xf4SpIbvF/Z1A== X-Google-Smtp-Source: ABdhPJxDCaCozuJzKgS/cCseiAVFoGqIbT5mv4HTAg+5SseqjMQxaLRYSUC1KIbC/PLrmdv6i4e02A== X-Received: by 2002:a17:90b:1014:: with SMTP id gm20mr15745347pjb.5.1610895239574; Sun, 17 Jan 2021 06:53:59 -0800 (PST) From: Minwoo Im To: qemu-devel@nongnu.org, qemu-block@nongnu.org Subject: [RFC PATCH V2 04/11] hw/block/nvme: split setup and register for namespace Date: Sun, 17 Jan 2021 23:53:34 +0900 Message-Id: <20210117145341.23310-5-minwoo.im.dev@gmail.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210117145341.23310-1-minwoo.im.dev@gmail.com> References: <20210117145341.23310-1-minwoo.im.dev@gmail.com> Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::634; envelope-from=minwoo.im.dev@gmail.com; helo=mail-pl1-x634.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no 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: Keith Busch , Klaus Jensen , Minwoo Im , Kevin Wolf , Max Reitz Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" In NVMe, namespace is being attached to process I/O. We register NVMe namespace to a controller via nvme_register_namespace() during nvme_ns_setup(). This is main reason of receiving NvmeCtrl object instance to this function to map the namespace to a controller. To make namespace instance more independent, it should be split into two parts: setup and register. This patch split them into two differnt parts, and finally nvme_ns_setup() does not have nothing to do with NvmeCtrl instance at all. This patch is a former patch to introduce NVMe subsystem scheme to the existing design especially for multi-path. In that case, it should be split into two to make namespace independent from a controller. Signed-off-by: Minwoo Im Reviewed-by: Klaus Jensen --- hw/block/nvme-ns.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/hw/block/nvme-ns.c b/hw/block/nvme-ns.c index fc42ae184e01..3f0e4e461420 100644 --- a/hw/block/nvme-ns.c +++ b/hw/block/nvme-ns.c @@ -320,10 +320,6 @@ int nvme_ns_setup(NvmeCtrl *n, NvmeNamespace *ns, Erro= r **errp) nvme_ns_init_zoned(ns, 0); } =20 - if (nvme_register_namespace(n, ns, errp)) { - return -1; - } - return 0; } =20 @@ -361,6 +357,13 @@ static void nvme_ns_realize(DeviceState *dev, Error **= errp) "could not setup namespace: "); return; } + + if (nvme_register_namespace(n, ns, errp)) { + error_propagate_prepend(errp, local_err, + "could not register namespace: "); + return; + } + } =20 static Property nvme_ns_props[] =3D { --=20 2.17.1