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GET /api/patches/815140/?format=api
{ "id": 815140, "url": "http://patchwork.ozlabs.org/api/patches/815140/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20170918192651.78404-2-bryantly@linux.vnet.ibm.com/", "project": { "id": 2, "url": "http://patchwork.ozlabs.org/api/projects/2/?format=api", "name": "Linux PPC development", "link_name": "linuxppc-dev", "list_id": "linuxppc-dev.lists.ozlabs.org", "list_email": "linuxppc-dev@lists.ozlabs.org", "web_url": "https://github.com/linuxppc/wiki/wiki", "scm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git", "webscm_url": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/", "list_archive_url_format": "https://lore.kernel.org/linuxppc-dev/{}/", "commit_url_format": "https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git/commit/?id={}" }, "msgid": "<20170918192651.78404-2-bryantly@linux.vnet.ibm.com>", "list_archive_url": "https://lore.kernel.org/linuxppc-dev/20170918192651.78404-2-bryantly@linux.vnet.ibm.com/", "date": "2017-09-18T19:26:49", "name": "[v1,1/3] powerpc/kernel: Split up pci_bus_add_device", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "f53d160add202cc3520e28ae946bfcd8bc64dd1b", "submitter": { "id": 72247, "url": "http://patchwork.ozlabs.org/api/people/72247/?format=api", "name": "Bryant G. Ly", "email": "bryantly@linux.vnet.ibm.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/linuxppc-dev/patch/20170918192651.78404-2-bryantly@linux.vnet.ibm.com/mbox/", "series": [ { "id": 3719, "url": "http://patchwork.ozlabs.org/api/series/3719/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linuxppc-dev/list/?series=3719", "date": "2017-09-18T19:26:48", "name": "Prepartion for SR-IOV PowerVM Enablement", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/3719/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/815140/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/815140/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org>", "X-Original-To": [ "patchwork-incoming@ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Delivered-To": [ "patchwork-incoming@ozlabs.org", "linuxppc-dev@lists.ozlabs.org" ], "Received": [ "from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\t(using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits))\n\t(No client certificate requested)\n\tby ozlabs.org (Postfix) with ESMTPS id 3xwx541yRhz9s5L\n\tfor <patchwork-incoming@ozlabs.org>;\n\tTue, 19 Sep 2017 05:33:44 +1000 (AEST)", "from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3])\n\tby lists.ozlabs.org (Postfix) with ESMTP id 3xwx536gRRzDqJq\n\tfor <patchwork-incoming@ozlabs.org>;\n\tTue, 19 Sep 2017 05:33:43 +1000 (AEST)", "from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com\n\t[148.163.156.1])\n\t(using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256\n\tbits)) (No client certificate requested)\n\tby lists.ozlabs.org (Postfix) with ESMTPS id 3xwwxt5z2gzDqBd\n\tfor <linuxppc-dev@lists.ozlabs.org>;\n\tTue, 19 Sep 2017 05:27:30 +1000 (AEST)", "from pps.filterd (m0098399.ppops.net [127.0.0.1])\n\tby mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id\n\tv8IJOUIs138944\n\tfor <linuxppc-dev@lists.ozlabs.org>; Mon, 18 Sep 2017 15:27:28 -0400", "from e12.ny.us.ibm.com (e12.ny.us.ibm.com [129.33.205.202])\n\tby mx0a-001b2d01.pphosted.com with ESMTP id 2d2m88g6ux-1\n\t(version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT)\n\tfor <linuxppc-dev@lists.ozlabs.org>; Mon, 18 Sep 2017 15:27:28 -0400", "from localhost\n\tby e12.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use\n\tOnly! Violators will be prosecuted\n\tfor <linuxppc-dev@lists.ozlabs.org> from\n\t<bryantly@linux.vnet.ibm.com>; Mon, 18 Sep 2017 15:27:27 -0400", "from b01cxnp22036.gho.pok.ibm.com (9.57.198.26)\n\tby e12.ny.us.ibm.com (146.89.104.199) with IBM ESMTP SMTP Gateway:\n\tAuthorized Use Only! Violators will be prosecuted; \n\tMon, 18 Sep 2017 15:27:23 -0400", "from b01ledav002.gho.pok.ibm.com (b01ledav002.gho.pok.ibm.com\n\t[9.57.199.107])\n\tby b01cxnp22036.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP\n\tid v8IJRM9G49676372; Mon, 18 Sep 2017 19:27:22 GMT", "from b01ledav002.gho.pok.ibm.com (unknown [127.0.0.1])\n\tby IMSVA (Postfix) with ESMTP id 15EA612403D;\n\tMon, 18 Sep 2017 15:24:39 -0400 (EDT)", "from bryants-mbp-3.rchland.ibm.com (unknown [9.10.79.138])\n\tby b01ledav002.gho.pok.ibm.com (Postfix) with ESMTP id 9EA87124037;\n\tMon, 18 Sep 2017 15:24:38 -0400 (EDT)" ], "Authentication-Results": "ozlabs.org;\n\tspf=none (mailfrom) smtp.mailfrom=linux.vnet.ibm.com\n\t(client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com;\n\tenvelope-from=bryantly@linux.vnet.ibm.com; receiver=<UNKNOWN>)", "From": "\"Bryant G. Ly\" <bryantly@linux.vnet.ibm.com>", "To": "bhelgaas@google.com, benh@kernel.crashing.org, paulus@samba.org,\n\tmpe@ellerman.id.au", "Subject": "[PATCH v1 1/3] powerpc/kernel: Split up pci_bus_add_device", "Date": "Mon, 18 Sep 2017 14:26:49 -0500", "X-Mailer": "git-send-email 2.11.0 (Apple Git-81)", "In-Reply-To": "<20170918192651.78404-1-bryantly@linux.vnet.ibm.com>", "References": "<20170918192651.78404-1-bryantly@linux.vnet.ibm.com>", "X-TM-AS-GCONF": "00", "x-cbid": "17091819-0048-0000-0000-000001E72724", "X-IBM-SpamModules-Scores": "", "X-IBM-SpamModules-Versions": "BY=3.00007757; HX=3.00000241; KW=3.00000007;\n\tPH=3.00000004; SC=3.00000230; SDB=6.00918923; UDB=6.00461645;\n\tIPR=6.00699151; \n\tBA=6.00005595; NDR=6.00000001; ZLA=6.00000005; ZF=6.00000009;\n\tZB=6.00000000; \n\tZP=6.00000000; ZH=6.00000000; ZU=6.00000002; MB=3.00017199;\n\tXFM=3.00000015; UTC=2017-09-18 19:27:25", "X-IBM-AV-DETECTION": "SAVI=unused REMOTE=unused XFE=unused", "x-cbparentid": "17091819-0049-0000-0000-0000429A36F0", "Message-Id": "<20170918192651.78404-2-bryantly@linux.vnet.ibm.com>", "X-Proofpoint-Virus-Version": "vendor=fsecure engine=2.50.10432:, ,\n\tdefinitions=2017-09-18_08:, , signatures=0", "X-Proofpoint-Spam-Details": "rule=outbound_notspam policy=outbound score=0\n\tspamscore=0 suspectscore=0\n\tmalwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam\n\tadjust=0 reason=mlx scancount=1 engine=8.0.1-1707230000\n\tdefinitions=main-1709180274", "X-BeenThere": "linuxppc-dev@lists.ozlabs.org", "X-Mailman-Version": "2.1.24", "Precedence": "list", "List-Id": "Linux on PowerPC Developers Mail List\n\t<linuxppc-dev.lists.ozlabs.org>", "List-Unsubscribe": "<https://lists.ozlabs.org/options/linuxppc-dev>,\n\t<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=unsubscribe>", "List-Archive": "<http://lists.ozlabs.org/pipermail/linuxppc-dev/>", "List-Post": "<mailto:linuxppc-dev@lists.ozlabs.org>", "List-Help": "<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=help>", "List-Subscribe": "<https://lists.ozlabs.org/listinfo/linuxppc-dev>,\n\t<mailto:linuxppc-dev-request@lists.ozlabs.org?subject=subscribe>", "Cc": "linux-pci@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,\n\t\"Bryant G. Ly\" <bryantly@linux.vnet.ibm.com>,\n\t\"Juan J . Alvarez\" <jjalvare@us.ibm.com>", "Errors-To": "linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org", "Sender": "\"Linuxppc-dev\"\n\t<linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org>" }, "content": "When enabling SR-IOV one might want to have their\nown version of starting device drivers for the VFs.\nThis patch allows for SR-IOV callers to use\npci_bus_add_virtfn_device instead of generic\npci_bus_add_device.\n\nWhen enabling SR-IOV in PSeries architecture the\ndynamic VFs created within the sriov_configure sysfs call\nwill not load the device driver as firmware will load\nthe device node when the VF device is assigned to the\nlogical partition. So we needed a way to overwrite the\nway device driver matching is done for virtual functions\non powervm.\n\nSigned-off-by: Bryant G. Ly <bryantly@linux.vnet.ibm.com>\nSigned-off-by: Juan J. Alvarez <jjalvare@us.ibm.com>\n---\n drivers/pci/bus.c | 51 ++++++++++++++++++++++++++++++++++++++++++---------\n drivers/pci/iov.c | 2 +-\n include/linux/pci.h | 3 +++\n 3 files changed, 46 insertions(+), 10 deletions(-)", "diff": "diff --git a/drivers/pci/bus.c b/drivers/pci/bus.c\nindex bc56cf19afd3..86daf62c4048 100644\n--- a/drivers/pci/bus.c\n+++ b/drivers/pci/bus.c\n@@ -302,16 +302,9 @@ void __weak pcibios_resource_survey_bus(struct pci_bus *bus) { }\n \n void __weak pcibios_bus_add_device(struct pci_dev *pdev) { }\n \n-/**\n- * pci_bus_add_device - start driver for a single device\n- * @dev: device to add\n- *\n- * This adds add sysfs entries and start device drivers\n- */\n-void pci_bus_add_device(struct pci_dev *dev)\n-{\n-\tint retval;\n \n+void pci_bus_add_sysfs_entries(struct pci_dev *dev)\n+{\n \t/*\n \t * Can not put in pci_device_add yet because resources\n \t * are not assigned yet for some devices.\n@@ -321,6 +314,11 @@ void pci_bus_add_device(struct pci_dev *dev)\n \tpci_create_sysfs_dev_files(dev);\n \tpci_proc_attach_device(dev);\n \tpci_bridge_d3_update(dev);\n+}\n+\n+void pci_bus_match_device_driver(struct pci_dev *dev)\n+{\n+\tint retval;\n \n \tdev->match_driver = true;\n \tretval = device_attach(&dev->dev);\n@@ -333,6 +331,41 @@ void pci_bus_add_device(struct pci_dev *dev)\n \n \tdev->is_added = 1;\n }\n+\n+#ifdef CONFIG_PCI_IOV\n+void __weak pci_bus_match_virtfn_driver(struct pci_dev *dev)\n+{\n+\tpci_bus_match_device_driver(dev);\n+}\n+\n+/**\n+ * pci_bus_add_virtfn_device - start driver for a virtual function device\n+ * @dev: device to add\n+ *\n+ * This adds add sysfs entries and start device drivers for\n+ * virtual function devices\n+ *\n+ */\n+void pci_bus_add_virtfn_device(struct pci_dev *pdev)\n+{\n+\tpci_bus_add_sysfs_entries(pdev);\n+\tpci_bus_match_virtfn_driver(pdev);\n+}\n+EXPORT_SYMBOL_GPL(pci_bus_add_virtfn_device);\n+#endif\n+\n+/**\n+ * pci_bus_add_device - start driver for a single device\n+ * @dev: device to add\n+ *\n+ * This adds add sysfs entries and start device drivers\n+ */\n+void pci_bus_add_device(struct pci_dev *dev)\n+{\n+\tpci_bus_add_sysfs_entries(dev);\n+\tpci_bus_match_device_driver(dev);\n+}\n+\n EXPORT_SYMBOL_GPL(pci_bus_add_device);\n \n /**\ndiff --git a/drivers/pci/iov.c b/drivers/pci/iov.c\nindex ac41c8be9200..16cc72545847 100644\n--- a/drivers/pci/iov.c\n+++ b/drivers/pci/iov.c\n@@ -162,7 +162,7 @@ int pci_iov_add_virtfn(struct pci_dev *dev, int id, int reset)\n \n \tpci_device_add(virtfn, virtfn->bus);\n \n-\tpci_bus_add_device(virtfn);\n+\tpci_bus_add_virtfn_device(virtfn);\n \tsprintf(buf, \"virtfn%u\", id);\n \trc = sysfs_create_link(&dev->dev.kobj, &virtfn->dev.kobj, buf);\n \tif (rc)\ndiff --git a/include/linux/pci.h b/include/linux/pci.h\nindex f68c58a93dd0..39f5c0b4bf23 100644\n--- a/include/linux/pci.h\n+++ b/include/linux/pci.h\n@@ -911,6 +911,9 @@ struct pci_dev *pci_scan_single_device(struct pci_bus *bus, int devfn);\n void pci_device_add(struct pci_dev *dev, struct pci_bus *bus);\n unsigned int pci_scan_child_bus(struct pci_bus *bus);\n void pci_bus_add_device(struct pci_dev *dev);\n+#ifdef CONFIG_PCI_IOV\n+void pci_bus_add_virtfn_device(struct pci_dev *dev);\n+#endif\n void pci_read_bridge_bases(struct pci_bus *child);\n struct resource *pci_find_parent_resource(const struct pci_dev *dev,\n \t\t\t\t\t struct resource *res);\n", "prefixes": [ "v1", "1/3" ] }