From patchwork Wed Feb 10 06:02:54 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gavin Shan X-Patchwork-Id: 8268641 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: X-Original-To: patchwork-linux-pci@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 681CA9F6DA for ; Wed, 10 Feb 2016 06:04:40 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 7A935202D1 for ; Wed, 10 Feb 2016 06:04:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 9DBF820254 for ; Wed, 10 Feb 2016 06:04:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753066AbcBJGEh (ORCPT ); Wed, 10 Feb 2016 01:04:37 -0500 Received: from e23smtp09.au.ibm.com ([202.81.31.142]:42502 "EHLO e23smtp09.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751639AbcBJGEg (ORCPT ); Wed, 10 Feb 2016 01:04:36 -0500 Received: from localhost by e23smtp09.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Wed, 10 Feb 2016 16:04:32 +1000 X-IBM-Helo: d23dlp01.au.ibm.com X-IBM-MailFrom: gwshan@linux.vnet.ibm.com X-IBM-RcptTo: linux-pci@vger.kernel.org Received: from d23relay08.au.ibm.com (d23relay08.au.ibm.com [9.185.71.33]) by d23dlp01.au.ibm.com (Postfix) with ESMTP id BF8A02CE8054 for ; Wed, 10 Feb 2016 17:04:31 +1100 (EST) Received: from d23av01.au.ibm.com (d23av01.au.ibm.com [9.190.234.96]) by d23relay08.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id u1A64KW138994090 for ; Wed, 10 Feb 2016 17:04:28 +1100 Received: from d23av01.au.ibm.com (localhost [127.0.0.1]) by d23av01.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id u1A63l5j004655 for ; Wed, 10 Feb 2016 17:03:58 +1100 Received: from ozlabs.au.ibm.com (ozlabs.au.ibm.com [9.192.253.14]) by d23av01.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVin) with ESMTP id u1A63lCq003165; Wed, 10 Feb 2016 17:03:47 +1100 Received: from bran.ozlabs.ibm.com (haven.au.ibm.com [9.192.254.114]) by ozlabs.au.ibm.com (Postfix) with ESMTP id 95605A03B0; Wed, 10 Feb 2016 17:02:59 +1100 (AEDT) Received: from gwshan (shangw.ozlabs.ibm.com [10.61.2.199]) by bran.ozlabs.ibm.com (Postfix) with ESMTP id 8E378E39A5; Wed, 10 Feb 2016 17:02:59 +1100 (AEDT) Received: by gwshan (Postfix, from userid 1000) id 8D72F94242F; Wed, 10 Feb 2016 17:02:59 +1100 (AEDT) From: Gavin Shan To: linuxppc-dev@lists.ozlabs.org Cc: linux-pci@vger.kernel.org, bhelgaas@google.com, mpe@ellerman.id.au, aik@ozlabs.ru, ruscur@russell.cc, Wei Yang Subject: [PATCH v14 6/9] powerpc/eeh: Create PE for VFs Date: Wed, 10 Feb 2016 17:02:54 +1100 Message-Id: <1455084177-15525-7-git-send-email-gwshan@linux.vnet.ibm.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1455084177-15525-1-git-send-email-gwshan@linux.vnet.ibm.com> References: <1455084177-15525-1-git-send-email-gwshan@linux.vnet.ibm.com> X-TM-AS-MML: disable X-Content-Scanned: Fidelis XPS MAILER x-cbid: 16021006-0033-0000-0000-000002E60FAC Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Wei Yang This creates PEs for VFs in the weak function pcibios_bus_add_device(). Those PEs for VFs are identified with newly introduced flag EEH_PE_VF so that we treat them differently during EEH recovery. Signed-off-by: Wei Yang Acked-by: Gavin Shan --- arch/powerpc/include/asm/eeh.h | 1 + arch/powerpc/kernel/eeh_pe.c | 10 ++++++++-- arch/powerpc/platforms/powernv/eeh-powernv.c | 16 ++++++++++++++++ 3 files changed, 25 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index 574ed49a..0c551a2 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -72,6 +72,7 @@ struct pci_dn; #define EEH_PE_PHB (1 << 1) /* PHB PE */ #define EEH_PE_DEVICE (1 << 2) /* Device PE */ #define EEH_PE_BUS (1 << 3) /* Bus PE */ +#define EEH_PE_VF (1 << 4) /* VF PE */ #define EEH_PE_ISOLATED (1 << 0) /* Isolated PE */ #define EEH_PE_RECOVERING (1 << 1) /* Recovering PE */ diff --git a/arch/powerpc/kernel/eeh_pe.c b/arch/powerpc/kernel/eeh_pe.c index faaf19e..e441d7b 100644 --- a/arch/powerpc/kernel/eeh_pe.c +++ b/arch/powerpc/kernel/eeh_pe.c @@ -299,7 +299,10 @@ static struct eeh_pe *eeh_pe_get_parent(struct eeh_dev *edev) * EEH device already having associated PE, but * the direct parent EEH device doesn't have yet. */ - pdn = pdn ? pdn->parent : NULL; + if (edev->physfn) + pdn = pci_get_pdn(edev->physfn); + else + pdn = pdn ? pdn->parent : NULL; while (pdn) { /* We're poking out of PCI territory */ parent = pdn_to_eeh_dev(pdn); @@ -382,7 +385,10 @@ int eeh_add_to_parent_pe(struct eeh_dev *edev) } /* Create a new EEH PE */ - pe = eeh_pe_alloc(edev->phb, EEH_PE_DEVICE); + if (edev->physfn) + pe = eeh_pe_alloc(edev->phb, EEH_PE_VF); + else + pe = eeh_pe_alloc(edev->phb, EEH_PE_DEVICE); if (!pe) { pr_err("%s: out of memory!\n", __func__); return -ENOMEM; diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c index 8119172..830526e 100644 --- a/arch/powerpc/platforms/powernv/eeh-powernv.c +++ b/arch/powerpc/platforms/powernv/eeh-powernv.c @@ -1503,6 +1503,22 @@ static struct eeh_ops pnv_eeh_ops = { .restore_config = pnv_eeh_restore_config }; +void pcibios_bus_add_device(struct pci_dev *pdev) +{ + struct pci_dn *pdn = pci_get_pdn(pdev); + + if (!pdev->is_virtfn) + return; + + /* + * The following operations will fail if VF's sysfs files + * aren't created or its resources aren't finalized. + */ + eeh_add_device_early(pdn); + eeh_add_device_late(pdev); + eeh_sysfs_add_device(pdev); +} + /** * eeh_powernv_init - Register platform dependent EEH operations *