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4 commits

Author SHA1 Message Date
Keith Busch
e51cd9ce5d PCI/AER: Refactor error injection fallbacks
Move the bus ops fallback into separate functions.  No functional change
here.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-10-18 19:43:19 -05:00
Keith Busch
390e2db824 PCI/AER: Abstract AER interrupt handling
The aer_inject module was directly calling aer_irq().  This required the
AER driver export its private IRQ handler for no other reason than to
support error injection.  A driver should not have to expose its private
interfaces, so use the IRQ subsystem to route injection to the AER driver,
and make aer_irq() a private interface.

This provides additional benefits:

First, directly calling the IRQ handler bypassed the IRQ subsytem so the
injection wasn't really synthesizing what happens if a shared AER interrupt
occurs.

The error injection had to provide the callback data directly, which may be
racing with a removal that is freeing that structure.  The IRQ subsystem
can handle that race.

Finally, using the IRQ subsystem automatically reacts to threaded IRQs,
keeping the error injection abstracted from that implementation detail.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-10-18 19:43:09 -05:00
Keith Busch
0e98db259f PCI/AER: Reuse existing pcie_port_find_device() interface
The port services driver already provides a method to find the pcie_device
for a service.  Export that function, use it from the aer_inject module,
and remove the duplicate functionality.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2018-10-18 19:42:54 -05:00
Bjorn Helgaas
4696b828ca PCI/AER: Hoist aerdrv.c, aer_inject.c up to drivers/pci/pcie/
Hoist aerdrv.c, aer_inject.c up to drivers/pci/pcie/ so they're next to
other PCIe service drivers.  No functional change intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>
2018-06-11 08:11:39 -05:00
Renamed from drivers/pci/pcie/aer/aer_inject.c (Browse further)