** Description changed: + ============= SRU for 5.4 Focal kernel =============== + [Impact] + The PC state stays at PC3 if r8169 driver doesn't enable ASPM. + + [Fix] + Applied same series of patches and disable ASPM L1.1 only, instead of disable ASPM completely. + + [Test] + Verified on machines with realtek Ethernet device, the Ethernet works well after S3 test 30 times and the system can enter PC10. + + [Regression Potential] + Low, from realtek r8169 driver supports ASPM L0s and L1, and we only disable ASPM L1.1 which is pretty safe and should be disabled by default. + + ================== SRU for 5.0 OEM OSP1 kernel ========================= [Impact] The PC state stays at PC3 if realtek ethernet doesn't enable ASPM. [Fix] Discussed with upstream and they would like to use sysfs to toggle the ASPM link states, but the patches didn't get merged yet, so we merger them as SAUCE patches. [Test] Verified on machines with realtek ethernet device, the ethernet works well and the system can enter PC10. [Regression Potential] High. From upstream maintainer, enable realtek ethernet ASPM may lead to some serious issue, so regression is expected. Those regression should come from old realtek chips, we'll make sure all new platforms with realtek NIC have no any issues.
** Description changed: ============= SRU for 5.4 Focal kernel =============== [Impact] The PC state stays at PC3 if r8169 driver doesn't enable ASPM. [Fix] - Applied same series of patches and disable ASPM L1.1 only, instead of disable ASPM completely. + Applied same series of patches from v5.5-rc1 and disable ASPM L1.1 only, instead of disable ASPM completely. [Test] Verified on machines with realtek Ethernet device, the Ethernet works well after S3 test 30 times and the system can enter PC10. [Regression Potential] Low, from realtek r8169 driver supports ASPM L0s and L1, and we only disable ASPM L1.1 which is pretty safe and should be disabled by default. ================== SRU for 5.0 OEM OSP1 kernel ========================= [Impact] The PC state stays at PC3 if realtek ethernet doesn't enable ASPM. [Fix] Discussed with upstream and they would like to use sysfs to toggle the ASPM link states, but the patches didn't get merged yet, so we merger them as SAUCE patches. [Test] Verified on machines with realtek ethernet device, the ethernet works well and the system can enter PC10. [Regression Potential] High. From upstream maintainer, enable realtek ethernet ASPM may lead to some serious issue, so regression is expected. Those regression should come from old realtek chips, we'll make sure all new platforms with realtek NIC have no any issues. ** Description changed: ============= SRU for 5.4 Focal kernel =============== [Impact] The PC state stays at PC3 if r8169 driver doesn't enable ASPM. [Fix] Applied same series of patches from v5.5-rc1 and disable ASPM L1.1 only, instead of disable ASPM completely. [Test] Verified on machines with realtek Ethernet device, the Ethernet works well after S3 test 30 times and the system can enter PC10. [Regression Potential] - Low, from realtek r8169 driver supports ASPM L0s and L1, and we only disable ASPM L1.1 which is pretty safe and should be disabled by default. + Low, from realtek engineer, r8169 driver supports ASPM L0s and L1, and we only disable ASPM L1.1 which is pretty safe and should be disabled by default. ================== SRU for 5.0 OEM OSP1 kernel ========================= [Impact] The PC state stays at PC3 if realtek ethernet doesn't enable ASPM. [Fix] Discussed with upstream and they would like to use sysfs to toggle the ASPM link states, but the patches didn't get merged yet, so we merger them as SAUCE patches. [Test] Verified on machines with realtek ethernet device, the ethernet works well and the system can enter PC10. [Regression Potential] High. From upstream maintainer, enable realtek ethernet ASPM may lead to some serious issue, so regression is expected. Those regression should come from old realtek chips, we'll make sure all new platforms with realtek NIC have no any issues. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1836030 Title: enable realtek ethernet device ASPM function To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1836030/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
