LFX Mentorship
Linux Kernel PCI Add support for Latency Tolerance Reporting _DSM
Linux Foundation1 Program Years
Linux Kernel PCI Add support for Latency Tolerance Reporting _DSM
About the Organization
Latency Tolerance Reporting is used to help manage ASPM (Active State Power Management). Some of the LTR values are platform-dependent and must be learned from platform firmware. Linux currently does not ask firmware for this information. I don't know exactly how this information needs to be incorporated into the ASPM support, but I think it's something we should figure out. See the PCI Firmware Spec, r3.2, sec 4.6.6.
Primary Technologies & Languages
cgnu makeshelllinux kernel
Technical Topics & Focus Areas
cgnu makeshelllinux kernel
Participation Years
Completed Projects Distribution
Annual Completed Projects History
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2020
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Linux Kernel PCI Add support for Latency Tolerance Reporting _DSM Mentorship Project
IntermediateLatency Tolerance Reporting is used to help manage ASPM (Active State Power Management). Some of the LTR values are platform-dependent and must be learned from platform firmware. Linux currently does not ask firmware for this information. I don't know exactly how this information needs to be incorporated into the ASPM support, but I think it's something we should figure out. See the PCI Firmware Spec, r3.2, sec 4.6.6.