linux

iv/linux

History

Kuppuswamy Sathyanarayanan e02a267a69 PCI/EDR: Align EDR_PORT_LOCATE_DSM with PCI Firmware r3.3

[ 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>

2024-06-12 11:12:27 +02:00

aer_inject.c

PCI/AER: Update aer-inject URL

2022-03-02 11:26:17 -06:00

aer.c

PCI/AER: Decode Requester ID when no error info found

2024-02-05 20:14:32 +00:00

aspm.c

PCI/ASPM: Fix deadlock when enabling ASPM

2024-04-27 17:11:44 +02:00

dpc.c

PCI/DPC: Use FIELD_GET()