kernel-ark/drivers/pci/pcie/aer/Kconfig

#
# PCI Express Root Port Device AER Configuration
#

config PCIEAER
	boolean "Root Port Advanced Error Reporting support"
	depends on PCIEPORTBUS && ACPI
	default y
	help
	  This enables PCI Express Root Port Advanced Error Reporting
	  (AER) driver support. Error reporting messages sent to Root
	  Port will be handled by PCI Express AER driver.
PCI-Express AER implemetation: AER core and aerdriver Patch 3 implements the core part of PCI-Express AER and aerdrv port service driver. When a root port service device is probed, the aerdrv will call request_irq to register irq handler for AER error interrupt. When a device sends an PCI-Express error message to the root port, the root port will trigger an interrupt, by either MSI or IO-APIC, then kernel would run the irq handler. The handler collects root error status register and schedules a work. The work will call the core part to process the error based on its type (Correctable/non-fatal/fatal). As for Correctable errors, the patch chooses to just clear the correctable error status register of the device. As for the non-fatal error, the patch follows generic PCI error handler rules to call the error callback functions of the endpoint's driver. If the device is a bridge, the patch chooses to broadcast the error to downstream devices. As for the fatal error, the patch resets the pci-express link and follows generic PCI error handler rules to call the error callback functions of the endpoint's driver. If the device is a bridge, the patch chooses to broadcast the error to downstream devices. Signed-off-by: Zhang Yanmin <yanmin.zhang@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> 2006-07-31 07:21:33 +00:00			`#`
			`# PCI Express Root Port Device AER Configuration`
			`#`

			`config PCIEAER`
			`boolean "Root Port Advanced Error Reporting support"`
			`depends on PCIEPORTBUS && ACPI`
			`default y`
			`help`
			`This enables PCI Express Root Port Advanced Error Reporting`
			`(AER) driver support. Error reporting messages sent to Root`
			`Port will be handled by PCI Express AER driver.`