From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from e23smtp01.au.ibm.com ([202.81.31.143]:41123 "EHLO e23smtp01.au.ibm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752142AbbEOF6L (ORCPT ); Fri, 15 May 2015 01:58:11 -0400 Received: from /spool/local by e23smtp01.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 15 May 2015 15:58:09 +1000 Received: from d23relay08.au.ibm.com (d23relay08.au.ibm.com [9.185.71.33]) by d23dlp03.au.ibm.com (Postfix) with ESMTP id 9E307357804F for ; Fri, 15 May 2015 15:58:08 +1000 (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 t4F5w0Nv41287910 for ; Fri, 15 May 2015 15:58:08 +1000 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 t4F5vZ5r011691 for ; Fri, 15 May 2015 15:57:36 +1000 Date: Fri, 15 May 2015 15:57:10 +1000 From: Gavin Shan To: Wei Yang Cc: gwshan@linux.vnet.ibm.com, bhelgaas@google.com, linuxppc-dev@lists.ozlabs.org, linux-pci@vger.kernel.org Subject: Re: [PATCH V4 02/11] powerpc/pci_dn: cache vf_index in pci_dn Message-ID: <20150515055710.GB27029@gwshan> Reply-To: Gavin Shan References: <1431668786-30371-1-git-send-email-weiyang@linux.vnet.ibm.com> <1431668786-30371-3-git-send-email-weiyang@linux.vnet.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <1431668786-30371-3-git-send-email-weiyang@linux.vnet.ibm.com> Sender: linux-pci-owner@vger.kernel.org List-ID: On Fri, May 15, 2015 at 01:46:17PM +0800, Wei Yang wrote: >The patch caches the VF index in pci_dn, which can be used to calculate >VF's bus, device and function number. Those information helps to locate >the VF's PCI device instance when doing hotplug during EEH recovery if >necessary. > >Signed-off-by: Wei Yang Acked-by: Gavin Shan Thanks, Gavin >--- > arch/powerpc/include/asm/pci-bridge.h | 1 + > arch/powerpc/kernel/pci_dn.c | 4 +++- > 2 files changed, 4 insertions(+), 1 deletion(-) > >diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h >index 1811c44..d78afe4 100644 >--- a/arch/powerpc/include/asm/pci-bridge.h >+++ b/arch/powerpc/include/asm/pci-bridge.h >@@ -199,6 +199,7 @@ struct pci_dn { > #ifdef CONFIG_PCI_IOV > u16 vfs_expanded; /* number of VFs IOV BAR expanded */ > u16 num_vfs; /* number of VFs enabled*/ >+ int vf_index; /* VF index in the PF */ > int offset; /* PE# for the first VF PE */ > #define M64_PER_IOV 4 > int m64_per_iov; >diff --git a/arch/powerpc/kernel/pci_dn.c b/arch/powerpc/kernel/pci_dn.c >index b3b4df9..f771130 100644 >--- a/arch/powerpc/kernel/pci_dn.c >+++ b/arch/powerpc/kernel/pci_dn.c >@@ -139,6 +139,7 @@ struct pci_dn *pci_get_pdn(struct pci_dev *pdev) > #ifdef CONFIG_PCI_IOV > static struct pci_dn *add_one_dev_pci_data(struct pci_dn *parent, > struct pci_dev *pdev, >+ int vf_index, > int busno, int devfn) > { > struct pci_dn *pdn; >@@ -157,6 +158,7 @@ static struct pci_dn *add_one_dev_pci_data(struct pci_dn *parent, > pdn->parent = parent; > pdn->busno = busno; > pdn->devfn = devfn; >+ pdn->vf_index = vf_index; > #ifdef CONFIG_PPC_POWERNV > pdn->pe_number = IODA_INVALID_PE; > #endif >@@ -196,7 +198,7 @@ struct pci_dn *add_dev_pci_data(struct pci_dev *pdev) > return NULL; > > for (i = 0; i < pci_sriov_get_totalvfs(pdev); i++) { >- pdn = add_one_dev_pci_data(parent, NULL, >+ pdn = add_one_dev_pci_data(parent, NULL, i, > pci_iov_virtfn_bus(pdev, i), > pci_iov_virtfn_devfn(pdev, i)); > if (!pdn) { >-- >1.7.9.5 >