From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@xxxxxxxxxxxxxxx> This patchset adds support for following features: 1. Error Disconnect Recover (EDR) support. 2. _OSC based negotiation support for DPC. You can find EDR spec in the following link. https://members.pcisig.com/wg/PCI-SIG/document/12614 Changes since v1: * Rebased on top of v5.1-rc1 Changes since v2: * Split EDR support patch into multiple patches. * Addressed Bjorn comments. Kuppuswamy Sathyanarayanan (5): PCI/ACPI: Add _OSC based negotiation support for DPC PCI/DPC: Allow dpc_probe() even if DPC is handled in firmware PCI/DPC: Add dpc_process_error() wrapper function PCI/DPC: Add Error Disconnect Recover (EDR) support PCI/ACPI: Expose EDR support via _OSC to BIOS drivers/acpi/pci_root.c | 9 ++ drivers/pci/pcie/Kconfig | 10 ++ drivers/pci/pcie/dpc.c | 265 ++++++++++++++++++++++++++++++-- drivers/pci/pcie/portdrv_core.c | 8 +- drivers/pci/probe.c | 1 + include/linux/acpi.h | 6 +- include/linux/pci.h | 1 + 7 files changed, 282 insertions(+), 18 deletions(-) -- 2.20.1