aboutsummaryrefslogtreecommitdiff
path: root/drivers/pci/pcie/portdrv_pci.c
diff options
context:
space:
mode:
authorZhang, Yanmin <yanmin.zhang@intel.com>2006-07-31 15:21:33 +0800
committerGreg Kroah-Hartman <gregkh@suse.de>2006-09-26 17:43:53 -0700
commit6c2b374d74857e892080ee726184ec1d15e7d4e4 (patch)
treec107532c288bcede80e45ebc3e46292bfaf0cea2 /drivers/pci/pcie/portdrv_pci.c
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/portdrv_pci.c')
0 files changed, 0 insertions, 0 deletions