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| author |   Gavin Shan <gwshan@linux.vnet.ibm.com> | 2015-05-01 09:22:15 +1000 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2015-05-01 13:52:32 +1000 |
| commit | d91dafc02f42e23c1a906202ebde5d7c49ef058d (patch) | |
| tree | 052bf14e9ed505257ee2cad44048b0c7ba264154 /arch | |
| parent | powerpc/eeh: Fix race condition in pcibios_set_pcie_reset_state() (diff) | |
| download | linux-dev-d91dafc02f42e23c1a906202ebde5d7c49ef058d.tar.xz linux-dev-d91dafc02f42e23c1a906202ebde5d7c49ef058d.zip | |
powerpc/eeh: Delay probing EEH device during hotplug
Commit 1c509148b ("powerpc/eeh: Do probe on pci_dn") probes EEH
devices in early stage, which is reasonable to pSeries platform.
However, it's wrong for PowerNV platform because the PE# isn't
determined until the resources (IO and MMIO) are assigned to
PE in hotplug case. So we have to delay probing EEH devices
for PowerNV platform until the PE# is assigned.
Fixes: ff57b454ddb9 ("powerpc/eeh: Do probe on pci_dn")
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/eeh.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c index fa046ca6d0fa..9ee61d15653d 100644 --- a/arch/powerpc/kernel/eeh.c +++ b/arch/powerpc/kernel/eeh.c @@ -1061,6 +1061,9 @@ void eeh_add_device_early(struct pci_dn *pdn) if (!edev || !eeh_enabled()) return; + if (!eeh_has_flag(EEH_PROBE_MODE_DEVTREE)) + return; + /* USB Bus children of PCI devices will not have BUID's */ phb = edev->phb; if (NULL == phb || @@ -1115,6 +1118,9 @@ void eeh_add_device_late(struct pci_dev *dev) return; } + if (eeh_has_flag(EEH_PROBE_MODE_DEV)) + eeh_ops->probe(pdn, NULL); + /* * The EEH cache might not be removed correctly because of * unbalanced kref to the device during unplug time, which |