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[ Upstream commit e2e78a294a8a863898b781dbcf90e087eda3155d ] The "Downstream Port Containment related Enhancements" ECN of Jan 28, 2019 (document 12888 below), defined the EDR_PORT_LOCATE_DSM function with Revision ID 5 with a return value encoding (Bits 2:0 = Function, Bits 7:3 = Device, Bits 15:8 = Bus). When the ECN was integrated into PCI Firmware r3.3, sec 4.6.13, Bit 31 was added to indicate success or failure. Check Bit 31 for failure in acpi_dpc_port_get(). Link: https://lore.kernel.org/r/20240501022543.1626025-1-sathyanarayanan.kuppuswamy@linux.intel.com Link: https://members.pcisig.com/wg/PCI-SIG/document/12888 Fixes: ac1c8e35a326 ("PCI/DPC: Add Error Disconnect Recover (EDR) support") Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com> [bhelgaas: split into two patches, update commit log] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Satish Thatchanamurthy <Satish.Thatchanamurt@Dell.com> # one platform Signed-off-by: Sasha Levin <sashal@kernel.org> |
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| .. | ||
| aer.c | ||
| aer_inject.c | ||
| aspm.c | ||
| dpc.c | ||
| edr.c | ||
| err.c | ||
| Kconfig | ||
| Makefile | ||
| pme.c | ||
| portdrv.h | ||
| portdrv_core.c | ||
| portdrv_pci.c | ||
| ptm.c | ||
| rcec.c | ||