From nobody Fri May 17 05:50:21 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 162567320667768.09453376003762; Wed, 7 Jul 2021 08:53:26 -0700 (PDT) Received: from localhost ([::1]:58146 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m19rZ-0002nK-80 for importer@patchew.org; Wed, 07 Jul 2021 11:53:25 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46286) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m19o1-000050-Nx; Wed, 07 Jul 2021 11:49:45 -0400 Received: from wout1-smtp.messagingengine.com ([64.147.123.24]:37775) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m19o0-0003EN-57; Wed, 07 Jul 2021 11:49:45 -0400 Received: from compute4.internal (compute4.nyi.internal [10.202.2.44]) by mailout.west.internal (Postfix) with ESMTP id 8393232009A5; Wed, 7 Jul 2021 11:49:42 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute4.internal (MEProxy); Wed, 07 Jul 2021 11:49:42 -0400 Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 7 Jul 2021 11:49:41 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=irrelevant.dk; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm3; bh=xzP35CbRRWuuo R3gzE4VsQTCJWGZJMrnrDE5SrPKt2c=; b=GlRyqTVhypCgoyNdxT3/mw3uYMj4t 4xkreiVFxPZf1Rqi4iO/MY3g9tiW7mG8AKmqBuuecthxxdT9/Bdd/gn1ucefZIsp GQ68A9XZa23XJsUNJ24XBQOg60X+28LVGf0xZ0+8ItftF4rf6hOYbCNt9aaw4/yD NvFnYKcRcG0Iygad37w7MgsuHI0rcKiVduyJ6aQtudKHv0HsIohgV5uKateuEdu4 HTPbVfLbg00gZTnMeQ7xNKA/6lZXUJGp8sHz+NZCz7q93E7fz6znFvXgzdyUStKi eSgUdvKv/JjjTFsKeBKpnc0194oTZdYfIX3MPIgvSIhSfgVq/gkRBdduQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm3; bh=xzP35CbRRWuuoR3gzE4VsQTCJWGZJMrnrDE5SrPKt2c=; b=iYSJ86gf XHICYmLuh97hR/qaSyP/pIHS/KQVzqH/T/7N2pVnVLfIobIMPrbrvL1XDyg+fFrZ Qxi7QQufwq7TJGCXgBKunK7QmsKEFmQ+9FVnLEbd5aYQ5sGdsLZyxmT+t/XcUe5E 3E/Tf1w/szSqbrsmS+zi9q54p2H7pCLCp3ta/1EH3K6YEjViexNIlrqL00dTyWw1 PKYSgB50qbRsk+5QBCm5QRuMtYK06riYKTtBsK8qo62HfnhzVBJBsh5npMcq4rHW 7mTS8zHHBg8Zpc+jKQcW4+tc5IJVCzrz2xLdfUbDY/rUFYIiq+mpqDceXwYbp/BP g+31CmxrW98sYA== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrtddvgdelvdcutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepmfhlrghushcu lfgvnhhsvghnuceoihhtshesihhrrhgvlhgvvhgrnhhtrdgukheqnecuggftrfgrthhtvg hrnhepueelteegieeuhffgkeefgfevjeeigfetkeeitdfgtdeifefhtdfhfeeuffevgfek necuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepihhtsh esihhrrhgvlhgvvhgrnhhtrdgukh X-ME-Proxy: From: Klaus Jensen To: qemu-devel@nongnu.org Subject: [PATCH v2 1/4] hw/nvme: remove NvmeCtrl parameter from ns setup/check functions Date: Wed, 7 Jul 2021 17:49:33 +0200 Message-Id: <20210707154936.200166-2-its@irrelevant.dk> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210707154936.200166-1-its@irrelevant.dk> References: <20210707154936.200166-1-its@irrelevant.dk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=64.147.123.24; envelope-from=its@irrelevant.dk; helo=wout1-smtp.messagingengine.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_PASS=-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 , Hannes Reinecke , qemu-block@nongnu.org, Klaus Jensen Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZM-MESSAGEID: 1625673207262100001 Content-Type: text/plain; charset="utf-8" From: Klaus Jensen The nvme_ns_setup and nvme_ns_check_constraints should not depend on the controller state. Refactor and remove it. Reviewed-by: Hannes Reinecke Signed-off-by: Klaus Jensen --- hw/nvme/nvme.h | 2 +- hw/nvme/ctrl.c | 2 +- hw/nvme/ns.c | 37 ++++++++++++++++++------------------- 3 files changed, 20 insertions(+), 21 deletions(-) diff --git a/hw/nvme/nvme.h b/hw/nvme/nvme.h index 56f8eceed2ad..0868359a1e86 100644 --- a/hw/nvme/nvme.h +++ b/hw/nvme/nvme.h @@ -246,7 +246,7 @@ static inline void nvme_aor_dec_active(NvmeNamespace *n= s) } =20 void nvme_ns_init_format(NvmeNamespace *ns); -int nvme_ns_setup(NvmeCtrl *n, NvmeNamespace *ns, Error **errp); +int nvme_ns_setup(NvmeNamespace *ns, Error **errp); void nvme_ns_drain(NvmeNamespace *ns); void nvme_ns_shutdown(NvmeNamespace *ns); void nvme_ns_cleanup(NvmeNamespace *ns); diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index 629b0d38c2a2..dd1801510032 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -6498,7 +6498,7 @@ static void nvme_realize(PCIDevice *pci_dev, Error **= errp) ns =3D &n->namespace; ns->params.nsid =3D 1; =20 - if (nvme_ns_setup(n, ns, errp)) { + if (nvme_ns_setup(ns, errp)) { return; } =20 diff --git a/hw/nvme/ns.c b/hw/nvme/ns.c index 4275c3db6301..3c4f5b8c714a 100644 --- a/hw/nvme/ns.c +++ b/hw/nvme/ns.c @@ -346,8 +346,7 @@ static void nvme_zoned_ns_shutdown(NvmeNamespace *ns) assert(ns->nr_open_zones =3D=3D 0); } =20 -static int nvme_ns_check_constraints(NvmeCtrl *n, NvmeNamespace *ns, - Error **errp) +static int nvme_ns_check_constraints(NvmeNamespace *ns, Error **errp) { if (!ns->blkconf.blk) { error_setg(errp, "block backend not configured"); @@ -366,20 +365,6 @@ static int nvme_ns_check_constraints(NvmeCtrl *n, Nvme= Namespace *ns, return -1; } =20 - if (!n->subsys) { - if (ns->params.detached) { - error_setg(errp, "detached requires that the nvme device is " - "linked to an nvme-subsys device"); - return -1; - } - - if (ns->params.shared) { - error_setg(errp, "shared requires that the nvme device is " - "linked to an nvme-subsys device"); - return -1; - } - } - if (ns->params.zoned) { if (ns->params.max_active_zones) { if (ns->params.max_open_zones > ns->params.max_active_zones) { @@ -411,9 +396,9 @@ static int nvme_ns_check_constraints(NvmeCtrl *n, NvmeN= amespace *ns, return 0; } =20 -int nvme_ns_setup(NvmeCtrl *n, NvmeNamespace *ns, Error **errp) +int nvme_ns_setup(NvmeNamespace *ns, Error **errp) { - if (nvme_ns_check_constraints(n, ns, errp)) { + if (nvme_ns_check_constraints(ns, errp)) { return -1; } =20 @@ -465,7 +450,21 @@ static void nvme_ns_realize(DeviceState *dev, Error **= errp) uint32_t nsid =3D ns->params.nsid; int i; =20 - if (nvme_ns_setup(n, ns, errp)) { + if (!n->subsys) { + if (ns->params.detached) { + error_setg(errp, "detached requires that the nvme device is " + "linked to an nvme-subsys device"); + return; + } + + if (ns->params.shared) { + error_setg(errp, "shared requires that the nvme device is " + "linked to an nvme-subsys device"); + return; + } + } + + if (nvme_ns_setup(ns, errp)) { return; } =20 --=20 2.32.0 From nobody Fri May 17 05:50:21 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1625673530513683.8806185615183; 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Wed, 7 Jul 2021 11:49:43 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=irrelevant.dk; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm3; bh=h8t2938WpU3UU zpsqciYJT+0fzYoMfhS77cmgL5tVOs=; b=kiBugl8LU9Abra5AkwV6AgBvn0YPU FzIA//hemjx5HP146RrOl0Y6Yx79EL+C/wcFz0bib17K8w8AXjXMfEmSHX6Xa1Fn 4qWo6r1FfkFz9XJ2L0PWTyVgd4WUNXo3yIsvhoNoPabvqxZv6XW+vdR9j9H7W7PY ur4bng349jIY+cjAY7o52ZmzCr52gzIz6egMdFfkl+Enrl4427XADNfOHW9NSqaP OE8VKHCr0ou2ICWbd2NZbU+H7vfOz4Y2Vj4AElhRQWwpZbs8hZOo8GY7JAPH+feo M8FCkJ/lfR9rYRPy0gi6l9NAGVTmF5axQ4s2VNrNOApXe76MOsCclmptQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm3; bh=h8t2938WpU3UUzpsqciYJT+0fzYoMfhS77cmgL5tVOs=; b=u4CqAemX e88/BlX8HBn0zNcTtdxqhhIL3uj/uR3GdGqFgQuhiJxnGliN7R11jm1pps64BVgA 8KlUlW0H/q5dms48TPqNU44+2oym4gZ69Z84bJBOhO4kbL7rCJa86N8Zxsxm3m9t o7fLM3yk5W4b0WzVzrNu6VbQdG7BpS6p1R3w2e3K5d83gJieQGtqadTGFe3fa5cp LT+pmJ1IQ0lPc2X+2JUA7chFbRvUbfAQm3EOPKJxMrSYRTJ9Cr7iHu8ppJmq5+Gr ogr6YMZFbQOoPfhW3xXjoaCznvAxW7ABhOIxFP+lfvcSej2wsqc9xfw4PI1R1XfA P/0/i2HwoTd7EA== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrtddvgdelvdcutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepmfhlrghushcu lfgvnhhsvghnuceoihhtshesihhrrhgvlhgvvhgrnhhtrdgukheqnecuggftrfgrthhtvg hrnhepueelteegieeuhffgkeefgfevjeeigfetkeeitdfgtdeifefhtdfhfeeuffevgfek necuvehluhhsthgvrhfuihiivgeptdenucfrrghrrghmpehmrghilhhfrhhomhepihhtsh esihhrrhgvlhgvvhgrnhhtrdgukh X-ME-Proxy: From: Klaus Jensen To: qemu-devel@nongnu.org Subject: [PATCH v2 2/4] hw/nvme: mark nvme-subsys non-hotpluggable Date: Wed, 7 Jul 2021 17:49:34 +0200 Message-Id: <20210707154936.200166-3-its@irrelevant.dk> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210707154936.200166-1-its@irrelevant.dk> References: <20210707154936.200166-1-its@irrelevant.dk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=64.147.123.24; envelope-from=its@irrelevant.dk; helo=wout1-smtp.messagingengine.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_PASS=-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 , Hannes Reinecke , qemu-block@nongnu.org, Klaus Jensen Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZM-MESSAGEID: 1625673531725100001 Content-Type: text/plain; charset="utf-8" From: Klaus Jensen We currently lack the infrastructure to handle subsystem hotplugging, so disable it. Reviewed-by: Hannes Reinecke Signed-off-by: Klaus Jensen --- hw/nvme/subsys.c | 1 + 1 file changed, 1 insertion(+) diff --git a/hw/nvme/subsys.c b/hw/nvme/subsys.c index 192223d17ca1..dc7a96862f37 100644 --- a/hw/nvme/subsys.c +++ b/hw/nvme/subsys.c @@ -61,6 +61,7 @@ static void nvme_subsys_class_init(ObjectClass *oc, void = *data) =20 dc->realize =3D nvme_subsys_realize; dc->desc =3D "Virtual NVMe subsystem"; + dc->hotpluggable =3D false; =20 device_class_set_props(dc, nvme_subsystem_props); } --=20 2.32.0 From nobody Fri May 17 05:50:21 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 16256732379681000.870005245775; Wed, 7 Jul 2021 08:53:57 -0700 (PDT) Received: from localhost ([::1]:58922 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m19s4-0003IT-Km for importer@patchew.org; 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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=64.147.123.24; envelope-from=its@irrelevant.dk; helo=wout1-smtp.messagingengine.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_PASS=-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 , Hannes Reinecke , qemu-block@nongnu.org, Klaus Jensen Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZM-MESSAGEID: 1625673238625100003 Content-Type: text/plain; charset="utf-8" From: Klaus Jensen Make sure the controller is unregistered from the subsystem when device is removed. Reviewed-by: Hannes Reinecke Signed-off-by: Klaus Jensen --- hw/nvme/nvme.h | 1 + hw/nvme/ctrl.c | 4 ++++ hw/nvme/subsys.c | 5 +++++ 3 files changed, 10 insertions(+) diff --git a/hw/nvme/nvme.h b/hw/nvme/nvme.h index 0868359a1e86..c4065467d877 100644 --- a/hw/nvme/nvme.h +++ b/hw/nvme/nvme.h @@ -50,6 +50,7 @@ typedef struct NvmeSubsystem { } NvmeSubsystem; =20 int nvme_subsys_register_ctrl(NvmeCtrl *n, Error **errp); +void nvme_subsys_unregister_ctrl(NvmeSubsystem *subsys, NvmeCtrl *n); =20 static inline NvmeCtrl *nvme_subsys_ctrl(NvmeSubsystem *subsys, uint32_t cntlid) diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index dd1801510032..90e3ee2b70ee 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -6523,6 +6523,10 @@ static void nvme_exit(PCIDevice *pci_dev) nvme_ns_cleanup(ns); } =20 + if (n->subsys) { + nvme_subsys_unregister_ctrl(n->subsys, n); + } + g_free(n->cq); g_free(n->sq); g_free(n->aer_reqs); diff --git a/hw/nvme/subsys.c b/hw/nvme/subsys.c index dc7a96862f37..92caa604a280 100644 --- a/hw/nvme/subsys.c +++ b/hw/nvme/subsys.c @@ -32,6 +32,11 @@ int nvme_subsys_register_ctrl(NvmeCtrl *n, Error **errp) return cntlid; } =20 +void nvme_subsys_unregister_ctrl(NvmeSubsystem *subsys, NvmeCtrl *n) +{ + subsys->ctrls[n->cntlid] =3D NULL; +} + static void nvme_subsys_setup(NvmeSubsystem *subsys) { const char *nqn =3D subsys->params.nqn ? --=20 2.32.0 From nobody Fri May 17 05:50:21 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1625673236106851.7893895291098; Wed, 7 Jul 2021 08:53:56 -0700 (PDT) Received: from localhost ([::1]:58876 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m19s2-0003Gl-VQ for importer@patchew.org; Wed, 07 Jul 2021 11:53:55 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46340) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m19o8-0000G8-St; Wed, 07 Jul 2021 11:49:52 -0400 Received: from wout1-smtp.messagingengine.com ([64.147.123.24]:60637) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m19o7-0003FD-2g; Wed, 07 Jul 2021 11:49:52 -0400 Received: from compute6.internal (compute6.nyi.internal [10.202.2.46]) by mailout.west.internal (Postfix) with ESMTP id 76DBE320092A; Wed, 7 Jul 2021 11:49:49 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute6.internal (MEProxy); Wed, 07 Jul 2021 11:49:49 -0400 Received: by mail.messagingengine.com (Postfix) with ESMTPA; Wed, 7 Jul 2021 11:49:48 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=irrelevant.dk; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; s=fm3; bh=f96GloyJtJkES 4IPk+tH83JNqctMesbeU/r25oDSgGM=; b=AInOLFrm9cd5o6UgmbcMfWfr0sjfV APNmgS3aeWW8nqkKDIR8+MHPelciGZb7dyvcaZ2IN5K6jrArN+GrJZ2PvGwmEavt 3LOZDWruwegXEqtHWBLR+l6Qf2ZbSUTOaWC/Cmf0wHqpAH/mbgMaMIgp+kxgIibW yy1Cnp9YMo2OVkqMrJDQt4lXb5cY6NVU+3inwiP7oF+j+2NSIQmpvd2iW13f3wsG gx+QJI4JtuJeQ5DJqLCe1gfICCjfvh0L5fDrdCWTjiRk3RBvy/VUA7djYG+JnVTe IO/qDF5Hyra0oHBom9bO7AR5rxAQ5AQrFqD+YaQfBV6Ty+MWUpBli74lQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:subject:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm3; bh=f96GloyJtJkES4IPk+tH83JNqctMesbeU/r25oDSgGM=; b=ZTI7tB4Q KffunmHI4wiUto35HuLrDpHDxYDpL4i0e/Fj5LMJOT73Mm3buWOkvODlCODsT6nV CtXThGx/IbzJ0HlQUCT/K0j277nIMicSpSDCpWITJCeUE7I5KsbBd1SpevfVkDDA 3pWPX0F7gMgCdjqg1zyXAlQXBoX4eBeVTYZNKHZ1kLak6ACqFw1Reja/J60T02rK 4MwKfxfAhQg6aDvI94CbNxqYoVM8LsiX6LvViWOv9s5xpZmIzaHAp6fjd8KxhiHG BkKyqJzAaUY6rycAZAdENg8/8NJsLV0sGS5QZqUl08tSSrT5HqmCJGCaHk8C9hNy PR9h1SoFVs/cBw== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvtddrtddvgdelvdcutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpefhvffufffkofgjfhgggfestdekredtredttdenucfhrhhomhepmfhlrghushcu lfgvnhhsvghnuceoihhtshesihhrrhgvlhgvvhgrnhhtrdgukheqnecuggftrfgrthhtvg hrnhepueelteegieeuhffgkeefgfevjeeigfetkeeitdfgtdeifefhtdfhfeeuffevgfek necuvehluhhsthgvrhfuihiivgepudenucfrrghrrghmpehmrghilhhfrhhomhepihhtsh esihhrrhgvlhgvvhgrnhhtrdgukh X-ME-Proxy: From: Klaus Jensen To: qemu-devel@nongnu.org Subject: [PATCH v2 4/4] hw/nvme: fix controller hot unplugging Date: Wed, 7 Jul 2021 17:49:36 +0200 Message-Id: <20210707154936.200166-5-its@irrelevant.dk> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210707154936.200166-1-its@irrelevant.dk> References: <20210707154936.200166-1-its@irrelevant.dk> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=64.147.123.24; envelope-from=its@irrelevant.dk; helo=wout1-smtp.messagingengine.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 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, RCVD_IN_DNSWL_LOW=-0.7, SPF_HELO_PASS=-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 , Hannes Reinecke , qemu-block@nongnu.org, Klaus Jensen Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZM-MESSAGEID: 1625673238277100001 Content-Type: text/plain; charset="utf-8" From: Klaus Jensen Prior to this patch the nvme-ns devices are always children of the NvmeBus owned by the NvmeCtrl. This causes the namespaces to be unrealized when the parent device is removed. However, when subsystems are involved, this is not what we want since the namespaces may be attached to other controllers as well. This patch adds an additional NvmeBus on the subsystem device. When nvme-ns devices are realized, if the parent controller device is linked to a subsystem, the parent bus is set to the subsystem one instead. This makes sure that namespaces are kept alive and not unrealized. Signed-off-by: Klaus Jensen --- hw/nvme/nvme.h | 15 ++++++++------- hw/nvme/ctrl.c | 14 ++++++-------- hw/nvme/ns.c | 18 ++++++++++++++++++ hw/nvme/subsys.c | 3 +++ 4 files changed, 35 insertions(+), 15 deletions(-) diff --git a/hw/nvme/nvme.h b/hw/nvme/nvme.h index c4065467d877..83ffabade4cf 100644 --- a/hw/nvme/nvme.h +++ b/hw/nvme/nvme.h @@ -33,12 +33,20 @@ QEMU_BUILD_BUG_ON(NVME_MAX_NAMESPACES > NVME_NSID_BROAD= CAST - 1); typedef struct NvmeCtrl NvmeCtrl; typedef struct NvmeNamespace NvmeNamespace; =20 +#define TYPE_NVME_BUS "nvme-bus" +OBJECT_DECLARE_SIMPLE_TYPE(NvmeBus, NVME_BUS) + +typedef struct NvmeBus { + BusState parent_bus; +} NvmeBus; + #define TYPE_NVME_SUBSYS "nvme-subsys" #define NVME_SUBSYS(obj) \ OBJECT_CHECK(NvmeSubsystem, (obj), TYPE_NVME_SUBSYS) =20 typedef struct NvmeSubsystem { DeviceState parent_obj; + NvmeBus bus; uint8_t subnqn[256]; =20 NvmeCtrl *ctrls[NVME_MAX_CONTROLLERS]; @@ -365,13 +373,6 @@ typedef struct NvmeCQueue { QTAILQ_HEAD(, NvmeRequest) req_list; } NvmeCQueue; =20 -#define TYPE_NVME_BUS "nvme-bus" -#define NVME_BUS(obj) OBJECT_CHECK(NvmeBus, (obj), TYPE_NVME_BUS) - -typedef struct NvmeBus { - BusState parent_bus; -} NvmeBus; - #define TYPE_NVME "nvme" #define NVME(obj) \ OBJECT_CHECK(NvmeCtrl, (obj), TYPE_NVME) diff --git a/hw/nvme/ctrl.c b/hw/nvme/ctrl.c index 90e3ee2b70ee..9a3b3a27c293 100644 --- a/hw/nvme/ctrl.c +++ b/hw/nvme/ctrl.c @@ -6514,16 +6514,14 @@ static void nvme_exit(PCIDevice *pci_dev) =20 nvme_ctrl_reset(n); =20 - for (i =3D 1; i <=3D NVME_MAX_NAMESPACES; i++) { - ns =3D nvme_ns(n, i); - if (!ns) { - continue; + if (n->subsys) { + for (i =3D 1; i <=3D NVME_MAX_NAMESPACES; i++) { + ns =3D nvme_ns(n, i); + if (ns) { + ns->attached--; + } } =20 - nvme_ns_cleanup(ns); - } - - if (n->subsys) { nvme_subsys_unregister_ctrl(n->subsys, n); } =20 diff --git a/hw/nvme/ns.c b/hw/nvme/ns.c index 3c4f5b8c714a..b7cf1494e75b 100644 --- a/hw/nvme/ns.c +++ b/hw/nvme/ns.c @@ -441,6 +441,15 @@ void nvme_ns_cleanup(NvmeNamespace *ns) } } =20 +static void nvme_ns_unrealize(DeviceState *dev) +{ + NvmeNamespace *ns =3D NVME_NS(dev); + + nvme_ns_drain(ns); + nvme_ns_shutdown(ns); + nvme_ns_cleanup(ns); +} + static void nvme_ns_realize(DeviceState *dev, Error **errp) { NvmeNamespace *ns =3D NVME_NS(dev); @@ -462,6 +471,14 @@ static void nvme_ns_realize(DeviceState *dev, Error **= errp) "linked to an nvme-subsys device"); return; } + } else { + /* + * If this namespace belongs to a subsystem (through a link on the + * controller device), reparent the device. + */ + if (!qdev_set_parent_bus(dev, &subsys->bus.parent_bus, errp)) { + return; + } } =20 if (nvme_ns_setup(ns, errp)) { @@ -552,6 +569,7 @@ static void nvme_ns_class_init(ObjectClass *oc, void *d= ata) =20 dc->bus_type =3D TYPE_NVME_BUS; dc->realize =3D nvme_ns_realize; + dc->unrealize =3D nvme_ns_unrealize; device_class_set_props(dc, nvme_ns_props); dc->desc =3D "Virtual NVMe namespace"; } diff --git a/hw/nvme/subsys.c b/hw/nvme/subsys.c index 92caa604a280..93c35950d69d 100644 --- a/hw/nvme/subsys.c +++ b/hw/nvme/subsys.c @@ -50,6 +50,9 @@ static void nvme_subsys_realize(DeviceState *dev, Error *= *errp) { NvmeSubsystem *subsys =3D NVME_SUBSYS(dev); =20 + qbus_create_inplace(&subsys->bus, sizeof(NvmeBus), TYPE_NVME_BUS, dev, + dev->id); + nvme_subsys_setup(subsys); } =20 --=20 2.32.0