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PCI: Notify driver before and after device reset

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Notify a PCI device driver when its device's access is about to be disabled
for an impending reset attempt, then after the attempt completes and device
access is restored.  The notification is via the pci_error_handlers
interface.

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Keith Busch 2014-05-02 10:40:42 -06:00 • committed by Bjorn Helgaas
commit 3ebe7f9f7e
2 changed files with 24 additions and 0 deletions
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3
include/linux/pci.h
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@ -603,6 +603,9 @@ struct pci_error_handlers {
/* PCI slot has been reset */
pci_ers_result_t (*slot_reset)(struct pci_dev *dev);
/* PCI function reset prepare or completed */
void (*reset_notify)(struct pci_dev *dev, bool prepare);
/* Device driver may resume normal operations */
void (*resume)(struct pci_dev *dev);
};