diff options
| author | Zhang, Yanmin <yanmin.zhang@intel.com> | 2006-07-31 15:21:33 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2006-09-26 17:43:53 -0700 |
| commit | 6c2b374d74857e892080ee726184ec1d15e7d4e4 (patch) | |
| tree | c107532c288bcede80e45ebc3e46292bfaf0cea2 /drivers/pci/pcie/Makefile | |
| parent | 48408157ebf5b2c6dc1e04ba5d258012f6a7f356 (diff) | |
| download | linux-6c2b374d74857e892080ee726184ec1d15e7d4e4.tar.gz | |
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/Makefile')
| -rw-r--r-- | drivers/pci/pcie/Makefile | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/pci/pcie/Makefile b/drivers/pci/pcie/Makefile index 984fa87283e3a..e00fb99acf444 100644 --- a/drivers/pci/pcie/Makefile +++ b/drivers/pci/pcie/Makefile @@ -5,3 +5,6 @@ pcieportdrv-y := portdrv_core.o portdrv_pci.o portdrv_bus.o obj-$(CONFIG_PCIEPORTBUS) += pcieportdrv.o + +# Build PCI Express AER if needed +obj-$(CONFIG_PCIEAER) += aer/ |