mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-24 13:13:57 +08:00
6c2b374d74
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>
11 lines
216 B
Makefile
11 lines
216 B
Makefile
#
|
|
# Makefile for PCI-Express PORT Driver
|
|
#
|
|
|
|
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/
|