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 <[email protected]>
Acked-by: Gavin Shan <[email protected]> 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 > _______________________________________________ Linuxppc-dev mailing list [email protected] https://lists.ozlabs.org/listinfo/linuxppc-dev
