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PCI/ERR: Handle fatal error recovery

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We don't need to be paranoid about the topology changing while handling an
error.  If the device has changed in a hotplug capable slot, we can rely on
the presence detection handling to react to a changing topology.

Restore the fatal error handling behavior that existed before merging DPC
with AER with 7e9084b367 ("PCI/AER: Handle ERR_FATAL with removal and
re-enumeration of devices").

Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Sinan Kaya <okaya@kernel.org>
This commit is contained in:
Keith Busch
2018-09-20 10:27:12 -06:00
committed by Bjorn Helgaas
parent c4eed62a21
commit bdb5ac8577
5 changed files with 28 additions and 102 deletions
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4
drivers/pci/pci.h
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@ -433,8 +433,8 @@ static inline int pci_dev_specific_disable_acs_redir(struct pci_dev *dev)
#endif
/* PCI error reporting and recovery */
void pcie_do_fatal_recovery(struct pci_dev *dev, u32 service);
void pcie_do_nonfatal_recovery(struct pci_dev *dev);
void pcie_do_recovery(struct pci_dev *dev, enum pci_channel_state state,
u32 service);
bool pcie_wait_for_link(struct pci_dev *pdev, bool active);
#ifdef CONFIG_PCIEASPM