linux-stable-rt/drivers/pci/pcie/Kconfig

#
# PCI Express Port Bus Configuration
#
config PCIEPORTBUS
	bool "PCI Express support"
	depends on PCI
	help
	  This automatically enables PCI Express Port Bus support. Users can
	  choose Native Hot-Plug support, Advanced Error Reporting support,
	  Power Management Event support and Virtual Channel support to run
	  on PCI Express Ports (Root or Switch).

#
# Include service Kconfig here
#
config HOTPLUG_PCI_PCIE
	tristate "PCI Express Hotplug driver"
	depends on HOTPLUG_PCI && PCIEPORTBUS
	help
	  Say Y here if you have a motherboard that supports PCI Express Native
	  Hotplug

	  To compile this driver as a module, choose M here: the
	  module will be called pciehp.

	  When in doubt, say N.

source "drivers/pci/pcie/aer/Kconfig"
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! 2005-04-17 06:20:36 +08:00			`#`
			`# PCI Express Port Bus Configuration`
			`#`
			`config PCIEPORTBUS`
			`bool "PCI Express support"`
			`depends on PCI`
			`help`
			`This automatically enables PCI Express Port Bus support. Users can`
			`choose Native Hot-Plug support, Advanced Error Reporting support,`
			`Power Management Event support and Virtual Channel support to run`
			`on PCI Express Ports (Root or Switch).`

			`#`
			`# Include service Kconfig here`
			`#`
			`config HOTPLUG_PCI_PCIE`
			`tristate "PCI Express Hotplug driver"`
			`depends on HOTPLUG_PCI && PCIEPORTBUS`
			`help`
			`Say Y here if you have a motherboard that supports PCI Express Native`
			`Hotplug`

			`To compile this driver as a module, choose M here: the`
			`module will be called pciehp.`

			`When in doubt, say N.`

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 15:21:33 +08:00			`source "drivers/pci/pcie/aer/Kconfig"`