855e49f3b0
APEI allows platform to report different kinds of errors to OS in several ways. We've found that Supermicro X10/X11 motherboards report PCIe errors appearing on hot-unplug via this interface using NMI. Without respective driver it ended up in kernel panic without any additional information. This driver introduces support for the APEI Generic Hardware Error Source reporting via NMI, SCI or polling. It decodes the reported errors and either pass them to pci(4) for processing or just logs otherwise. Errors marked as fatal still end up in kernel panic, but some more informative. When somebody get to native PCIe AER support implementation both of the reporting mechanisms should get common error recovery code. Since in our case errors happen when the device is already gone, there is nothing to recover, so the code just clears the error statuses, practically ignoring the otherwise destructive NMIs in nicer way. MFC after: 2 weeks Relnotes: yes Sponsored by: iXsystems, Inc. |
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| .. | ||
| acpica | ||
| bios | ||
| conf | ||
| cpufreq | ||
| include | ||
| iommu | ||
| isa | ||
| pci | ||
| x86 | ||
| xen | ||