Verify the kernel in #31, the NVME controller LnkCtl will be ASPM L1 Enabled, and device can enter PC8 in short idle.
** Tags removed: verification-needed-jammy ** Tags added: verification-done-jammy -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.14 in Ubuntu. https://bugs.launchpad.net/bugs/1942160 Title: PCIE LnkCtl ASPM not enabled under VMD mode for Alder Lake platforms Status in HWE Next: Fix Released Status in OEM Priority Project: New Status in linux package in Ubuntu: In Progress Status in linux-oem-5.13 package in Ubuntu: Invalid Status in linux-oem-5.14 package in Ubuntu: Invalid Status in linux-oem-5.17 package in Ubuntu: Fix Committed Status in linux source package in Focal: Invalid Status in linux-oem-5.13 source package in Focal: Fix Released Status in linux-oem-5.14 source package in Focal: Fix Released Status in linux-oem-5.17 source package in Focal: Invalid Status in linux source package in Hirsute: Won't Fix Status in linux-oem-5.13 source package in Hirsute: Invalid Status in linux-oem-5.14 source package in Hirsute: Invalid Status in linux-oem-5.17 source package in Hirsute: Invalid Status in linux source package in Impish: Fix Released Status in linux-oem-5.13 source package in Impish: Invalid Status in linux-oem-5.14 source package in Impish: Invalid Status in linux-oem-5.17 source package in Impish: Invalid Status in linux source package in Jammy: Fix Committed Status in linux-oem-5.13 source package in Jammy: Invalid Status in linux-oem-5.14 source package in Jammy: Invalid Status in linux-oem-5.17 source package in Jammy: Fix Committed Bug description: [SRU Justification] [Impact] VMD PCI-E bridges on ADL-M/P/S use new device IDs and therefore not covered by previous LTR reset fix in bug 1896598. [Fix] Additional entires to vmd_bridge_tbl in drivers/pci/quirks.c is requierd: * ADL-M: [8086:464d] * ADL-P: [8086:51b0] * ADL-S: [8086:7ab4] [Test Case] $ sudo lspci -vvn | grep -E '^(1|\s+LnkCtl:)' ... 10000:e0:1d.4 0604: 8086:7ab4 (rev 10) (prog-if 00 [Normal decode]) LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+ 10000:e1:00.0 0108: 8086:0975 (rev 03) (prog-if 02 [NVM Express]) LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk+ [Where problems could occur] This will reset zeroed PCI_LTR_MAX_SNOOP_LAT and PCI_LTR_MAX_NOSNOOP_LAT values to a fixed 3145728ns that is used on Windows. Devices might want to set itself to a smaller value, but while this is not yet correctly supported by VMD controller driver, so the device power consumption might be little worse than ideal. [Other Info] VMD ASPM was first supported for Tiger Lake cpus, so all kernel versions newer than 5.6 should have already the supporting function. This patch targets Alder Lake cpus that are supported since 5.10-oem and on. ========== original bug report ========== * ADL-M: $ sudo lspci -vvn | grep -E '^(1|\s+LnkCtl:)' 10000:e0:06.0 PCI bridge [0604]: Intel Corporation Device [8086:464d] (rev 05) Kernel driver in use: pcieport 10000:e1:00.0 Non-Volatile memory controller [0108]: Intel Corporation Device [8086:f1aa] (rev 03) Subsystem: Intel Corporation Device [8086:390f] Kernel driver in use: nvme Kernel modules: nvme * ADL-P: $ sudo lspci -vvn | grep -E '^(1|\s+LnkCtl:)' 10000:e0:1d.0 0604: 8086:51b0 (prog-if 00 [Normal decode]) LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ 10000:e1:00.0 0108: 8086:f1a8 (rev 03) (prog-if 02 [NVM Express]) LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ * ADL-S: $ sudo lspci -vvn | grep -E '^(1|\s+LnkCtl:)' 10000:e0:1d.4 0604: 8086:7ab4 (rev 10) (prog-if 00 [Normal decode]) LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ 10000:e1:00.0 0108: 8086:0975 (rev 03) (prog-if 02 [NVM Express]) LnkCtl: ASPM Disabled; RCB 64 bytes Disabled- CommClk+ See https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1889384, https://bugs.launchpad.net/bugs/1896598. --- ProblemType: Bug ApportVersion: 2.20.11-0ubuntu27.18 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: gdm 1100 F.... pulseaudio CasperMD5CheckResult: skip Dependencies: DistroRelease: Ubuntu 20.04 InstallationDate: Installed on 2021-04-06 (146 days ago) InstallationMedia: Ubuntu 20.04.2 LTS "Focal Fossa" - Release amd64 (20210204) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 8087:0032 Intel Corp. Bus 001 Device 002: ID 062a:4c01 MosArt Semiconductor Corp. 2.4G INPUT DEVICE Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Intel Corporation Alder Lake Client Platform Package: linux-firmware 1.187.16+staging.11 [origin: unknown] PackageArchitecture: all ProcFB: 0 i915drmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.13.0-9010-oem root=UUID=e38f9e97-de55-4524-ba5b-a0ae4d5ea8a7 ro i915.force_probe=4680 quiet splash vt.handoff=7 ProcVersionSignature: Ubuntu 5.13.0-9010.11+staging.9-oem 5.13.1 PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No PulseAudio daemon running, or not running as session daemon. RelatedPackageVersions: linux-restricted-modules-5.13.0-9010-oem N/A linux-backports-modules-5.13.0-9010-oem N/A linux-firmware 1.187.16+staging.11 Tags: focal third-party-packages Uname: Linux 5.13.0-9010-oem x86_64 UnreportableReason: This is not an official Ubuntu package. Please remove any third party package and try again. UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: N/A _MarkForUpload: True dmi.bios.date: 04/26/2021 dmi.bios.vendor: Intel Corporation dmi.bios.version: ADLSFWI1.R00.2181.A00.2104261003 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: AlderLake-S ADP-S DDR5 UDIMM CRB dmi.board.vendor: Intel Corporation dmi.board.version: 2 dmi.chassis.asset.tag: Chassis Asset Tag dmi.chassis.type: 3 dmi.chassis.vendor: Intel Corporation dmi.chassis.version: 0.1 dmi.ec.firmware.release: 1.36 dmi.modalias: dmi:bvnIntelCorporation:bvrADLSFWI1.R00.2181.A00.2104261003:bd04/26/2021:efr1.36:svnIntelCorporation:pnAlderLakeClientPlatform:pvr0.1:sku00001004002B0100:rvnIntelCorporation:rnAlderLake-SADP-SDDR5UDIMMCRB:rvr2:cvnIntelCorporation:ct3:cvr0.1: dmi.product.family: Alder Lake Client System dmi.product.name: Alder Lake Client Platform dmi.product.sku: 00001004002B0100 dmi.product.version: 0.1 dmi.sys.vendor: Intel Corporation To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1942160/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
