On Tue, 3 Jun 2025 12:22:39 -0500 Terry Bowman <terry.bowman@xxxxxxx> wrote: > During CXL device cleanup the CXL PCIe Port device interrupts remain > enabled. This potentially allows unnecessary interrupt processing on > behalf of the CXL errors while the device is destroyed. > > Disable CXL protocol errors by setting the CXL devices' AER mask register. > > Introduce pci_aer_mask_internal_errors() similar to pci_aer_unmask_internal_errors(). > > Introduce cxl_mask_prot_interrupts() to call pci_aer_mask_internal_errors(). > Add calls to cxl_mask_prot_interrupts() within CXL Port teardown for CXL > Root Ports, CXL Downstream Switch Ports, CXL Upstream Switch Ports, and CXL > Endpoints. Follow the same "bottom-up" approach used during CXL Port > teardown. > > Implement cxl_mask_prot_interrupts() in a header file to avoid introducing > Kconfig ifdefs in cxl/core/port.c. > > Signed-off-by: Terry Bowman <terry.bowman@xxxxxxx> Reviewed-by: Jonathan Cameron <jonathan.cameron@xxxxxxxxxx>
