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GET /api/patches/1035064/?format=api
{ "id": 1035064, "url": "http://patchwork.ozlabs.org/api/patches/1035064/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/1549048453-3584-4-git-send-email-megha.dey@linux.intel.com/", "project": { "id": 46, "url": "http://patchwork.ozlabs.org/api/projects/46/?format=api", "name": "Intel Wired Ethernet development", "link_name": "intel-wired-lan", "list_id": "intel-wired-lan.osuosl.org", "list_email": "intel-wired-lan@osuosl.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<1549048453-3584-4-git-send-email-megha.dey@linux.intel.com>", "list_archive_url": null, "date": "2019-02-01T19:14:10", "name": "[RFC,v4,3/6] x86: Introduce the dynamic teardown function", "commit_ref": null, "pull_url": null, "state": "rfc", "archived": false, "hash": "3d99773210725e7b6217deb70a7526313d681475", "submitter": { "id": 75876, "url": "http://patchwork.ozlabs.org/api/people/75876/?format=api", "name": "Dey, Megha", "email": "megha.dey@linux.intel.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/1549048453-3584-4-git-send-email-megha.dey@linux.intel.com/mbox/", "series": [ { "id": 89594, "url": "http://patchwork.ozlabs.org/api/series/89594/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=89594", "date": "2019-02-01T19:14:07", "name": "Introduce dynamic allocation/freeing of MSI-X vectors", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/89594/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/1035064/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/1035064/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<intel-wired-lan-bounces@osuosl.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Delivered-To": [ "patchwork-incoming@bilbo.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Authentication-Results": [ "ozlabs.org;\n\tspf=pass (mailfrom) smtp.mailfrom=osuosl.org\n\t(client-ip=140.211.166.136; helo=silver.osuosl.org;\n\tenvelope-from=intel-wired-lan-bounces@osuosl.org;\n\treceiver=<UNKNOWN>)", "ozlabs.org; dmarc=none (p=none dis=none)\n\theader.from=linux.intel.com" ], "Received": [ "from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 43rmzn4gcDz9sML\n\tfor <incoming@patchwork.ozlabs.org>;\n\tSat, 2 Feb 2019 06:16:21 +1100 (AEDT)", "from localhost (localhost [127.0.0.1])\n\tby silver.osuosl.org (Postfix) with ESMTP id B973D230FB;\n\tFri, 1 Feb 2019 19:16:19 +0000 (UTC)", "from silver.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id vFNzK1O-WpLN; Fri, 1 Feb 2019 19:16:17 +0000 (UTC)", "from ash.osuosl.org (ash.osuosl.org [140.211.166.34])\n\tby silver.osuosl.org (Postfix) with ESMTP id A332522115;\n\tFri, 1 Feb 2019 19:16:17 +0000 (UTC)", "from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133])\n\tby ash.osuosl.org (Postfix) with ESMTP id 320171BF951\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tFri, 1 Feb 2019 18:52:35 +0000 (UTC)", "from localhost (localhost [127.0.0.1])\n\tby hemlock.osuosl.org (Postfix) with ESMTP id E471984C3E\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tFri, 1 Feb 2019 18:52:34 +0000 (UTC)", "from hemlock.osuosl.org ([127.0.0.1])\n\tby localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024)\n\twith ESMTP id CVyjHXSs57LQ for <intel-wired-lan@lists.osuosl.org>;\n\tFri, 1 Feb 2019 18:52:27 +0000 (UTC)", "from mga03.intel.com (mga03.intel.com [134.134.136.65])\n\tby hemlock.osuosl.org (Postfix) with ESMTPS id 699B4881E1\n\tfor <intel-wired-lan@lists.osuosl.org>;\n\tFri, 1 Feb 2019 18:52:26 +0000 (UTC)", "from orsmga003.jf.intel.com ([10.7.209.27])\n\tby orsmga103.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t01 Feb 2019 10:50:53 -0800", "from megha-z97x-ud7-th.sc.intel.com ([143.183.85.162])\n\tby orsmga003.jf.intel.com with ESMTP; 01 Feb 2019 10:50:53 -0800" ], "X-Virus-Scanned": [ "amavisd-new at osuosl.org", "amavisd-new at osuosl.org" ], "X-Greylist": "domain auto-whitelisted by SQLgrey-1.7.6", "X-Amp-Result": "SKIPPED(no attachment in message)", "X-Amp-File-Uploaded": "False", "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.56,549,1539673200\"; d=\"scan'208\";a=\"123233690\"", "From": "Megha Dey <megha.dey@linux.intel.com>", "To": "linux-drivers-review@linux.intel.com,\n\tintel-wired-lan@lists.osuosl.org", "Date": "Fri, 1 Feb 2019 11:14:10 -0800", "Message-Id": "<1549048453-3584-4-git-send-email-megha.dey@linux.intel.com>", "X-Mailer": "git-send-email 2.7.4", "In-Reply-To": "<1549048453-3584-1-git-send-email-megha.dey@linux.intel.com>", "References": "<1549048453-3584-1-git-send-email-megha.dey@linux.intel.com>", "X-Mailman-Approved-At": "Fri, 01 Feb 2019 19:16:15 +0000", "Subject": "[Intel-wired-lan] [RFC v4 3/6] x86: Introduce the dynamic teardown\n\tfunction", "X-BeenThere": "intel-wired-lan@osuosl.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "Intel Wired Ethernet Linux Kernel Driver Development\n\t<intel-wired-lan.osuosl.org>", "List-Unsubscribe": "<https://lists.osuosl.org/mailman/options/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@osuosl.org?subject=unsubscribe>", "List-Archive": "<http://lists.osuosl.org/pipermail/intel-wired-lan/>", "List-Post": "<mailto:intel-wired-lan@osuosl.org>", "List-Help": "<mailto:intel-wired-lan-request@osuosl.org?subject=help>", "List-Subscribe": "<https://lists.osuosl.org/mailman/listinfo/intel-wired-lan>, \n\t<mailto:intel-wired-lan-request@osuosl.org?subject=subscribe>", "Cc": "ravi.v.shankar@intel.com, ashok.raj@intel.com, kyung.min.park@intel.com, \n\tjacob.jun.pan@intel.com, Megha Dey <megha.dey@linux.intel.com>,\n\tmegha.dey@intel.com", "MIME-Version": "1.0", "Content-Type": "text/plain; charset=\"us-ascii\"", "Content-Transfer-Encoding": "7bit", "Errors-To": "intel-wired-lan-bounces@osuosl.org", "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>" }, "content": "This is a preparatory patch to introduce disabling of MSI-X vectors\nbelonging to a particular group. In this patch, we introduce a x86\nspecific mechanism to teardown the IRQ vectors belonging to a\nparticular group.\n\nSigned-off-by: Megha Dey <megha.dey@linux.intel.com>\n---\n arch/x86/include/asm/x86_init.h | 1 +\n arch/x86/kernel/x86_init.c | 6 ++++++\n drivers/pci/msi.c | 20 ++++++++++++++++++++\n include/linux/msi.h | 2 ++\n 4 files changed, 29 insertions(+)", "diff": "diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h\nindex b85a7c5..50f26a0 100644\n--- a/arch/x86/include/asm/x86_init.h\n+++ b/arch/x86/include/asm/x86_init.h\n@@ -283,6 +283,7 @@ struct pci_dev;\n struct x86_msi_ops {\n \tint (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type);\n \tvoid (*teardown_msi_irq)(unsigned int irq);\n+\tvoid (*teardown_msi_irqs_grp)(struct pci_dev *dev, int group_id);\n \tvoid (*teardown_msi_irqs)(struct pci_dev *dev);\n \tvoid (*restore_msi_irqs)(struct pci_dev *dev);\n };\ndiff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c\nindex 50a2b49..794e7d4 100644\n--- a/arch/x86/kernel/x86_init.c\n+++ b/arch/x86/kernel/x86_init.c\n@@ -127,6 +127,7 @@ EXPORT_SYMBOL_GPL(x86_platform);\n struct x86_msi_ops x86_msi __ro_after_init = {\n \t.setup_msi_irqs\t\t= native_setup_msi_irqs,\n \t.teardown_msi_irq\t= native_teardown_msi_irq,\n+\t.teardown_msi_irqs_grp\t= default_teardown_msi_irqs_grp,\n \t.teardown_msi_irqs\t= default_teardown_msi_irqs,\n \t.restore_msi_irqs\t= default_restore_msi_irqs,\n };\n@@ -142,6 +143,11 @@ void arch_teardown_msi_irqs(struct pci_dev *dev)\n \tx86_msi.teardown_msi_irqs(dev);\n }\n \n+void arch_teardown_msi_irqs_grp(struct pci_dev *dev, int group_id)\n+{\n+\tx86_msi.teardown_msi_irqs_grp(dev, group_id);\n+}\n+\n void arch_teardown_msi_irq(unsigned int irq)\n {\n \tx86_msi.teardown_msi_irq(irq);\ndiff --git a/drivers/pci/msi.c b/drivers/pci/msi.c\nindex a0cf3d3..5e4f452 100644\n--- a/drivers/pci/msi.c\n+++ b/drivers/pci/msi.c\n@@ -133,6 +133,26 @@ void __weak arch_teardown_msi_irqs(struct pci_dev *dev)\n \treturn default_teardown_msi_irqs(dev);\n }\n \n+void default_teardown_msi_irqs_grp(struct pci_dev *dev, int group_id)\n+{\n+\tint i, *group = NULL;\n+\tstruct msi_desc *entry;\n+\n+\tfor_each_pci_msi_entry(entry, dev) {\n+\t\tgroup = idr_find(dev->dev.msix_dev_idr->entry_idr,\n+\t\t\t\t\t\tentry->msi_attrib.entry_nr);\n+\t\tif (*group == group_id && entry->irq) {\n+\t\t\tfor (i = 0; i < entry->nvec_used; i++)\n+\t\t\t\tarch_teardown_msi_irq(entry->irq + i);\n+\t\t}\n+\t}\n+}\n+\n+void __weak arch_teardown_msi_irqs_grp(struct pci_dev *dev, int group_id)\n+{\n+\treturn default_teardown_msi_irqs_grp(dev, group_id);\n+}\n+\n static void default_restore_msi_irq(struct pci_dev *dev, int irq)\n {\n \tstruct msi_desc *entry;\ndiff --git a/include/linux/msi.h b/include/linux/msi.h\nindex 2092abf..6be0377 100644\n--- a/include/linux/msi.h\n+++ b/include/linux/msi.h\n@@ -182,9 +182,11 @@ int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc);\n void arch_teardown_msi_irq(unsigned int irq);\n int arch_setup_msi_irqs(struct pci_dev *dev, int nvec, int type);\n void arch_teardown_msi_irqs(struct pci_dev *dev);\n+void arch_teardown_msi_irqs_grp(struct pci_dev *dev, int group_id);\n void arch_restore_msi_irqs(struct pci_dev *dev);\n \n void default_teardown_msi_irqs(struct pci_dev *dev);\n+void default_teardown_msi_irqs_grp(struct pci_dev *dev, int group_id);\n void default_restore_msi_irqs(struct pci_dev *dev);\n \n struct msi_controller {\n", "prefixes": [ "RFC", "v4", "3/6" ] }