diff options
| author | Wei Yang <weiyang@linux.vnet.ibm.com> | 2016-03-04 02:53:08 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-03-09 01:58:19 +0300 |
| commit | c29fa27d26e3189009ba42786f0c0dce14a90940 (patch) | |
| tree | b27eb383418a45732c4c9b7203bc59d3ccae18b2 | |
| parent | 39218cd00ebf08b16edf015adc363de42d9ad612 (diff) | |
| download | linux-c29fa27d26e3189009ba42786f0c0dce14a90940.tar.xz | |
powerpc/eeh: Create PE for VFs
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 <weiyang@linux.vnet.ibm.com>
Acked-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| -rw-r--r-- | arch/powerpc/include/asm/eeh.h | 1 | ||||
| -rw-r--r-- | arch/powerpc/kernel/eeh_pe.c | 10 | ||||
| -rw-r--r-- | 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 574ed49a4a0d..0c551a27e37d 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 9066afc2b9db..eea48d8baf49 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 811917219bf1..830526e72cce 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 * |