Message ID | 20200129152937.311162-20-s.miroshnichenko@yadro.com |
---|---|
State | New |
Headers | show
Return-Path: <linux-pci-owner@vger.kernel.org> X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=none (no SPF record) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=linux-pci-owner@vger.kernel.org; receiver=<UNKNOWN>) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=yadro.com Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; unprotected) header.d=yadro.com header.i=@yadro.com header.a=rsa-sha256 header.s=mta-01 header.b=OdfbiGPp; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 4876qh1tTkz9sRm for <incoming@patchwork.ozlabs.org>; Thu, 30 Jan 2020 02:30:08 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727093AbgA2PaF (ORCPT <rfc822;incoming@patchwork.ozlabs.org>); Wed, 29 Jan 2020 10:30:05 -0500 Received: from mta-02.yadro.com ([89.207.88.252]:55864 "EHLO mta-01.yadro.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727095AbgA2PaE (ORCPT <rfc822;linux-pci@vger.kernel.org>); Wed, 29 Jan 2020 10:30:04 -0500 Received: from localhost (unknown [127.0.0.1]) by mta-01.yadro.com (Postfix) with ESMTP id 181DA47638; Wed, 29 Jan 2020 15:30:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=yadro.com; h= content-type:content-type:content-transfer-encoding:mime-version :references:in-reply-to:x-mailer:message-id:date:date:subject :subject:from:from:received:received:received; s=mta-01; t= 1580311803; x=1582126204; bh=OICdl3GBMIlvtb7uIInZqvKfC5xFfg9XVrz HEXhee6U=; b=OdfbiGPpH3LR1/Mgzz67hM4AwJavC/H2QWrZ03YiQYhFPjUzINI 8FYyqsR6GmhBEuFIm2GMmmkXQXzdKnhMxAa3CwknHmUDx4NvL0qDh50ghS749Tqg JFC3X1F/PLxt7H4YlQQf5oK/ebww45XpZ2d0FSLBxaLcwwivam4rPpLY= X-Virus-Scanned: amavisd-new at yadro.com Received: from mta-01.yadro.com ([127.0.0.1]) by localhost (mta-01.yadro.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bJqwttwmifqX; Wed, 29 Jan 2020 18:30:03 +0300 (MSK) Received: from T-EXCH-02.corp.yadro.com (t-exch-02.corp.yadro.com [172.17.10.102]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mta-01.yadro.com (Postfix) with ESMTPS id 6CF1747606; Wed, 29 Jan 2020 18:29:54 +0300 (MSK) Received: from NB-148.yadro.com (172.17.15.136) by T-EXCH-02.corp.yadro.com (172.17.10.102) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.669.32; Wed, 29 Jan 2020 18:29:53 +0300 From: Sergei Miroshnichenko <s.miroshnichenko@yadro.com> To: <linux-pci@vger.kernel.org> CC: Bjorn Helgaas <helgaas@kernel.org>, Stefan Roese <sr@denx.de>, <linux@yadro.com>, Sergei Miroshnichenko <s.miroshnichenko@yadro.com> Subject: [PATCH v7 19/26] PCI: hotplug: Configure MPS for hot-added bridges during bus rescan Date: Wed, 29 Jan 2020 18:29:30 +0300 Message-ID: <20200129152937.311162-20-s.miroshnichenko@yadro.com> X-Mailer: git-send-email 2.24.1 In-Reply-To: <20200129152937.311162-1-s.miroshnichenko@yadro.com> References: <20200129152937.311162-1-s.miroshnichenko@yadro.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [172.17.15.136] X-ClientProxiedBy: T-EXCH-01.corp.yadro.com (172.17.10.101) To T-EXCH-02.corp.yadro.com (172.17.10.102) Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: <linux-pci.vger.kernel.org> X-Mailing-List: linux-pci@vger.kernel.org |
Series |
PCI: Allow BAR movement during boot and hotplug
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diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c index b810d28ebf96..5f809ddd72b4 100644 --- a/drivers/pci/probe.c +++ b/drivers/pci/probe.c @@ -3440,7 +3440,7 @@ static void pci_reassign_root_bus_resources(struct pci_bus *root) unsigned int pci_rescan_bus(struct pci_bus *bus) { unsigned int max; - struct pci_bus *root = bus; + struct pci_bus *root = bus, *child; while (!pci_is_root_bus(root)) root = root->parent; @@ -3461,6 +3461,9 @@ unsigned int pci_rescan_bus(struct pci_bus *bus) pci_assign_unassigned_bus_resources(bus); } + list_for_each_entry(child, &root->children, node) + pcie_bus_configure_settings(child); + pci_bus_add_devices(bus); return max;
Assure that MPS settings are set up for bridges which are discovered during manually triggered rescan via sysfs. This sequence of bridge init (using pci_rescan_bus()) will be used for pciehp hot-add events when BARs are movable. Signed-off-by: Sergei Miroshnichenko <s.miroshnichenko@yadro.com> --- drivers/pci/probe.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)