powerpc/pci: Trace more information from pci_dn
authorGavin Shan <gwshan@linux.vnet.ibm.com>
Tue, 17 Mar 2015 05:15:04 +0000 (16:15 +1100)
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>
Tue, 24 Mar 2015 02:15:50 +0000 (13:15 +1100)
commitc035ff1d2eaa03ab40839041e955a86a8e412eb4
tree1e32cee1e7f44856d4c475c36bc552386ec87cd2
parent3532a741f80c3b9ca975006f93a4a477e07e2cb3
powerpc/pci: Trace more information from pci_dn

Originally, EEH probes on device_node or pci_dev and populates the
corresponding eeh_dev. In the subsequent patches, EEH will probes
on pci_dn and populates the corresponding eeh_dev. So we have to
cache some information in pci_dn, either from device_node or SRIOV
PF's enablement platform hook, to populate the eeh_dev properly.

The motivation to probe pci_dn, instead of device node or pci_dev,
to populate eeh_dev is SRIOV VFs are dynamically created and we
don't have the corresponding device nodes for them.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
arch/powerpc/include/asm/pci-bridge.h
arch/powerpc/kernel/pci_dn.c