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* PCI AER: fix warnings when PCIEAER=nRandy Dunlap2007-09-11
| | | | | | | | | | | | | Fix warnings when CONFIG_PCIEAER=n: drivers/pci/pcie/portdrv_pci.c:105: warning: statement with no effect drivers/pci/pcie/portdrv_pci.c:226: warning: statement with no effect drivers/scsi/arcmsr/arcmsr_hba.c:352: warning: statement with no effect Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Acked-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* PCI aer: add pci_cleanup_aer_correct_aer_statusStephen Hemminger2007-07-11
| | | | | | | | | | | | | Function to clear bogus correctable errors. Analog to pci_aer_uncorrect_are_status. The Marvell chips seem to start out with a bogus value that needs to be cleared. Yanmin ported it to 2.6.22-rc4 by fixing a fuzz patch applying info. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Acked-by: Zhang Yanmin <yanmin.zhang@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* PCI aer: fix stub return valuesStephen Hemminger2007-07-11
| | | | | | | | | | | The stubs used when advanced error reporting is not enabled must have same return type as real functions. Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org> Acked-by: Zhang Yanmin <yanmin.zhang@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* PCI-Express AER implemetation: AER core and aerdriverZhang, Yanmin2006-09-26
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>