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authorZhang, Yanmin <yanmin.zhang@intel.com>2006-07-31 03:21:33 -0400
committerGreg Kroah-Hartman <gregkh@suse.de>2006-09-26 20:43:53 -0400
commit6c2b374d74857e892080ee726184ec1d15e7d4e4 (patch)
treec107532c288bcede80e45ebc3e46292bfaf0cea2 /drivers/pci/pcie/Kconfig
parent48408157ebf5b2c6dc1e04ba5d258012f6a7f356 (diff)
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>
Diffstat (limited to 'drivers/pci/pcie/Kconfig')
-rw-r--r--drivers/pci/pcie/Kconfig1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/pci/pcie/Kconfig b/drivers/pci/pcie/Kconfig
index 1012db8b8b2c..0ad92a8ad8b1 100644
--- a/drivers/pci/pcie/Kconfig
+++ b/drivers/pci/pcie/Kconfig
@@ -34,3 +34,4 @@ config HOTPLUG_PCI_PCIE_POLL_EVENT_MODE
34 34
35 When in doubt, say N. 35 When in doubt, say N.
36 36
37source "drivers/pci/pcie/aer/Kconfig"