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GET /api/patches/971349/?format=api
{ "id": 971349, "url": "http://patchwork.ozlabs.org/api/patches/971349/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/patch/20180918235702.26573-3-keith.busch@intel.com/", "project": { "id": 28, "url": "http://patchwork.ozlabs.org/api/projects/28/?format=api", "name": "Linux PCI development", "link_name": "linux-pci", "list_id": "linux-pci.vger.kernel.org", "list_email": "linux-pci@vger.kernel.org", "web_url": null, "scm_url": null, "webscm_url": null, "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20180918235702.26573-3-keith.busch@intel.com>", "list_archive_url": null, "date": "2018-09-18T23:56:54", "name": "[PATCHv3,02/10] PCI/portdrv: Restore pci state on slot reset", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": false, "hash": "9f91bb4a204a43a101eadf506863d919aad2ea23", "submitter": { "id": 19950, "url": "http://patchwork.ozlabs.org/api/people/19950/?format=api", "name": "Keith Busch", "email": "keith.busch@intel.com" }, "delegate": { "id": 6763, "url": "http://patchwork.ozlabs.org/api/users/6763/?format=api", "username": "bhelgaas", "first_name": "Bjorn", "last_name": "Helgaas", "email": "bhelgaas@google.com" }, "mbox": "http://patchwork.ozlabs.org/project/linux-pci/patch/20180918235702.26573-3-keith.busch@intel.com/mbox/", "series": [ { "id": 66288, "url": "http://patchwork.ozlabs.org/api/series/66288/?format=api", "web_url": "http://patchwork.ozlabs.org/project/linux-pci/list/?series=66288", "date": "2018-09-18T23:56:52", "name": "PCI error handling", "version": 1, "mbox": "http://patchwork.ozlabs.org/series/66288/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/971349/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/971349/checks/", "tags": {}, "related": [], "headers": { "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;\n\tspf=none (mailfrom) smtp.mailfrom=vger.kernel.org\n\t(client-ip=209.132.180.67; helo=vger.kernel.org;\n\tenvelope-from=linux-pci-owner@vger.kernel.org;\n\treceiver=<UNKNOWN>)", "ozlabs.org;\n\tdmarc=fail (p=none dis=none) header.from=intel.com" ], "Received": [ "from vger.kernel.org (vger.kernel.org [209.132.180.67])\n\tby ozlabs.org (Postfix) with ESMTP id 42FKch6wVDz9sCR\n\tfor <incoming@patchwork.ozlabs.org>;\n\tWed, 19 Sep 2018 09:55:32 +1000 (AEST)", "(majordomo@vger.kernel.org) by vger.kernel.org via listexpand\n\tid S1730651AbeISFaa (ORCPT <rfc822;incoming@patchwork.ozlabs.org>);\n\tWed, 19 Sep 2018 01:30:30 -0400", "from mga02.intel.com ([134.134.136.20]:47633 \"EHLO mga02.intel.com\"\n\trhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP\n\tid S1730633AbeISFaa (ORCPT <rfc822;linux-pci@vger.kernel.org>);\n\tWed, 19 Sep 2018 01:30:30 -0400", "from orsmga008.jf.intel.com ([10.7.209.65])\n\tby orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384;\n\t18 Sep 2018 16:55:29 -0700", "from unknown (HELO localhost.lm.intel.com) ([10.232.112.44])\n\tby orsmga008.jf.intel.com with ESMTP; 18 Sep 2018 16:55:29 -0700" ], "X-Amp-Result": "SKIPPED(no attachment in message)", "X-Amp-File-Uploaded": "False", "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.53,391,1531810800\"; d=\"scan'208\";a=\"74357514\"", "From": "Keith Busch <keith.busch@intel.com>", "To": "Linux PCI <linux-pci@vger.kernel.org>,\n\tBjorn Helgaas <bhelgaas@google.com>", "Cc": "Benjamin Herrenschmidt <benh@kernel.crashing.org>,\n\tSinan Kaya <okaya@kernel.org>,\n\tThomas Tai <thomas.tai@oracle.com>, poza@codeaurora.org,\n\tLukas Wunner <lukas@wunner.de>, Christoph Hellwig <hch@lst.de>,\n\tMika Westerberg <mika.westerberg@linux.intel.com>,\n\tKeith Busch <keith.busch@intel.com>", "Subject": "[PATCHv3 02/10] PCI/portdrv: Restore pci state on slot reset", "Date": "Tue, 18 Sep 2018 17:56:54 -0600", "Message-Id": "<20180918235702.26573-3-keith.busch@intel.com>", "X-Mailer": "git-send-email 2.13.6", "In-Reply-To": "<20180918235702.26573-1-keith.busch@intel.com>", "References": "<20180918235702.26573-1-keith.busch@intel.com>", "Sender": "linux-pci-owner@vger.kernel.org", "Precedence": "bulk", "List-ID": "<linux-pci.vger.kernel.org>", "X-Mailing-List": "linux-pci@vger.kernel.org" }, "content": "The port's config space may be cleared after a link reset. We need\nto restore the config space that was saved during probe in order to\nsuccessfully access downstream devices.\n\nSigned-off-by: Keith Busch <keith.busch@intel.com>\n---\n drivers/pci/pcie/portdrv_pci.c | 8 ++++++++\n 1 file changed, 8 insertions(+)", "diff": "diff --git a/drivers/pci/pcie/portdrv_pci.c b/drivers/pci/pcie/portdrv_pci.c\nindex eef22dc29140..7336e3abb7c9 100644\n--- a/drivers/pci/pcie/portdrv_pci.c\n+++ b/drivers/pci/pcie/portdrv_pci.c\n@@ -146,6 +146,13 @@ static pci_ers_result_t pcie_portdrv_error_detected(struct pci_dev *dev,\n \treturn PCI_ERS_RESULT_CAN_RECOVER;\n }\n \n+static pci_ers_result_t pcie_portdrv_slot_reset(struct pci_dev *dev)\n+{\n+\tpci_restore_state(dev);\n+\tpci_save_state(dev);\n+\treturn PCI_ERS_RESULT_RECOVERED;\n+}\n+\n static pci_ers_result_t pcie_portdrv_mmio_enabled(struct pci_dev *dev)\n {\n \treturn PCI_ERS_RESULT_RECOVERED;\n@@ -185,6 +192,7 @@ static const struct pci_device_id port_pci_ids[] = { {\n \n static const struct pci_error_handlers pcie_portdrv_err_handler = {\n \t.error_detected = pcie_portdrv_error_detected,\n+\t.slot_reset = pcie_portdrv_slot_reset,\n \t.mmio_enabled = pcie_portdrv_mmio_enabled,\n \t.resume = pcie_portdrv_err_resume,\n };\n", "prefixes": [ "PATCHv3", "02/10" ] }