From patchwork Fri Feb 11 12:07:15 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jonathan Cameron X-Patchwork-Id: 12743334 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 45EECC433EF for ; Fri, 11 Feb 2022 12:27:17 +0000 (UTC) Received: from localhost ([::1]:47812 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1nIV1A-0005Gw-Bo for qemu-devel@archiver.kernel.org; Fri, 11 Feb 2022 07:27:16 -0500 Received: from eggs.gnu.org ([209.51.188.92]:39322) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nIUnl-00037w-BV for qemu-devel@nongnu.org; Fri, 11 Feb 2022 07:13:25 -0500 Received: from frasgout.his.huawei.com ([185.176.79.56]:2287) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1nIUnj-0003gF-KK for qemu-devel@nongnu.org; Fri, 11 Feb 2022 07:13:25 -0500 Received: from fraeml741-chm.china.huawei.com (unknown [172.18.147.201]) by frasgout.his.huawei.com (SkyGuard) with ESMTP id 4JwCF43n7gz67QKq; Fri, 11 Feb 2022 20:13:12 +0800 (CST) Received: from lhreml710-chm.china.huawei.com (10.201.108.61) by fraeml741-chm.china.huawei.com (10.206.15.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Fri, 11 Feb 2022 13:13:21 +0100 Received: from SecurePC-101-06.china.huawei.com (10.122.247.231) by lhreml710-chm.china.huawei.com (10.201.108.61) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2308.21; Fri, 11 Feb 2022 12:13:21 +0000 To: , =?utf-8?q?Alex_Benn=C3=A9e?= , Marcel Apfelbaum , "Michael S . Tsirkin" , Igor Mammedov CC: , Ben Widawsky , "Peter Maydell" , , "Shameerali Kolothum Thodi" , =?utf-8?q?Philippe_Mathieu-Daud=C3=A9?= , Saransh Gupta1 , Shreyas Shah , Chris Browy , Samarth Saxena , "Dan Williams" Subject: [PATCH v6 11/43] hw/pxb: Use a type for realizing expanders Date: Fri, 11 Feb 2022 12:07:15 +0000 Message-ID: <20220211120747.3074-12-Jonathan.Cameron@huawei.com> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20220211120747.3074-1-Jonathan.Cameron@huawei.com> References: <20220211120747.3074-1-Jonathan.Cameron@huawei.com> MIME-Version: 1.0 X-Originating-IP: [10.122.247.231] X-ClientProxiedBy: lhreml743-chm.china.huawei.com (10.201.108.193) To lhreml710-chm.china.huawei.com (10.201.108.61) X-CFilter-Loop: Reflected Received-SPF: pass client-ip=185.176.79.56; envelope-from=jonathan.cameron@huawei.com; helo=frasgout.his.huawei.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Reply-to: Jonathan Cameron X-Patchwork-Original-From: Jonathan Cameron via From: Jonathan Cameron From: Ben Widawsky This opens up the possibility for more types of expanders (other than PCI and PCIe). We'll need this to create a CXL expander. Signed-off-by: Ben Widawsky Signed-off-by: Jonathan Cameron Reviewed-by: Alex Bennée --- hw/pci-bridge/pci_expander_bridge.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/hw/pci-bridge/pci_expander_bridge.c b/hw/pci-bridge/pci_expander_bridge.c index de932286b5..d4514227a8 100644 --- a/hw/pci-bridge/pci_expander_bridge.c +++ b/hw/pci-bridge/pci_expander_bridge.c @@ -24,6 +24,8 @@ #include "hw/boards.h" #include "qom/object.h" +enum BusType { PCI, PCIE }; + #define TYPE_PXB_BUS "pxb-bus" typedef struct PXBBus PXBBus; DECLARE_INSTANCE_CHECKER(PXBBus, PXB_BUS, @@ -221,7 +223,8 @@ static gint pxb_compare(gconstpointer a, gconstpointer b) 0; } -static void pxb_dev_realize_common(PCIDevice *dev, bool pcie, Error **errp) +static void pxb_dev_realize_common(PCIDevice *dev, enum BusType type, + Error **errp) { PXBDev *pxb = convert_to_pxb(dev); DeviceState *ds, *bds = NULL; @@ -246,7 +249,7 @@ static void pxb_dev_realize_common(PCIDevice *dev, bool pcie, Error **errp) } ds = qdev_new(TYPE_PXB_HOST); - if (pcie) { + if (type == PCIE) { bus = pci_root_bus_new(ds, dev_name, NULL, NULL, 0, TYPE_PXB_PCIE_BUS); } else { bus = pci_root_bus_new(ds, "pxb-internal", NULL, NULL, 0, TYPE_PXB_BUS); @@ -295,7 +298,7 @@ static void pxb_dev_realize(PCIDevice *dev, Error **errp) return; } - pxb_dev_realize_common(dev, false, errp); + pxb_dev_realize_common(dev, PCI, errp); } static void pxb_dev_exitfn(PCIDevice *pci_dev) @@ -348,7 +351,7 @@ static void pxb_pcie_dev_realize(PCIDevice *dev, Error **errp) return; } - pxb_dev_realize_common(dev, true, errp); + pxb_dev_realize_common(dev, PCIE, errp); } static void pxb_pcie_dev_class_init(ObjectClass *klass, void *data)