This patch caches the index of a VF in its PF in pci_dn.

Signed-off-by: Wei Yang <weiy...@linux.vnet.ibm.com>
---
 arch/powerpc/include/asm/pci-bridge.h |    1 +
 arch/powerpc/kernel/pci_dn.c          |    5 +++--
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/include/asm/pci-bridge.h 
b/arch/powerpc/include/asm/pci-bridge.h
index 1811c44..9582aa2 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;               /* Index to PF for VF dev */
        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..bf0fb873 100644
--- a/arch/powerpc/kernel/pci_dn.c
+++ b/arch/powerpc/kernel/pci_dn.c
@@ -138,7 +138,7 @@ 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,
+                                          struct pci_dev *pdev, int vf_index,
                                           int busno, int devfn)
 {
        struct pci_dn *pdn;
@@ -157,6 +157,7 @@ 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 +197,7 @@ 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

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