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powerpc/eeh: Do probe on pci_dn

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Originally, EEH core probes on device_node or pci_dev to populate
EEH devices and PEs, which conflicts with the fact: SRIOV VFs are
usually enabled and created by PF's driver and they don't have the
corresponding device_nodes. Instead, SRIOV VFs have dynamically
created pci_dn, which can be used for EEH probe.

The patch reworks EEH probe for PowerNV and pSeries platforms to
do probing based on pci_dn, instead of pci_dev or device_node any
more.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Gavin Shan 2015-03-17 16:15:06 +11:00 • committed by Benjamin Herrenschmidt
parent e8e9b34cef
commit ff57b454dd
8 changed files with 172 additions and 138 deletions
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2
arch/powerpc/kernel/of_platform.c
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@ -72,7 +72,7 @@ static int of_pci_phb_probe(struct platform_device *dev)
/* Register devices with EEH */
if (dev->dev.of_node->child)
eeh_add_device_tree_early(dev->dev.of_node);
eeh_add_device_tree_early(PCI_DN(dev->dev.of_node));
/* Scan the bus */
pcibios_scan_phb(phb);