** Tags removed: verification-failed-focal ** Tags added: verification-needed-focal
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-oem-5.10 in Ubuntu. https://bugs.launchpad.net/bugs/1930645 Title: Fix Ethernet not working by hotplug - RTL8106E Status in HWE Next: New Status in linux package in Ubuntu: In Progress Status in linux-oem-5.10 package in Ubuntu: New Status in linux source package in Focal: New Status in linux-oem-5.10 source package in Focal: Fix Committed Status in linux source package in Impish: In Progress Status in linux-oem-5.10 source package in Impish: New Bug description: [Impact] After hot-plug the Ethernet cable, the status of Ethernet is always down. [Fix] Because ASPM is enabled on RTL8106E, the link change interrupt can't be fired immediately. Must wait a long time to get the link change interrupt. After discuss with maintainer, he give some suggestions 1. use PHY_POLL. 2. he send a workaround(Ref. [1]) to disable ASPM on RTL8106E. For 2, because don't know the details about operated registers in rtl_hw_aspm_clkreq_enable, it have higher risk on power usage during suspend. For 1, Use PHY_POLL have a lower risk because don't change any register operations and use polling method to query link change status. SRU the patches for 1 first. Currently keep discussing with Realtek but don't figure out yet. Will re-SRU the official solution once Realtek resolve the issue. Ref [1], https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net- next.git/commit/?id=1ee8856de82faec9bc8bd0f2308a7f27e30ba207 [Test] Verified on machines with Realtek Ethernet device, the Ethernet works well after hotplug 30 times. [Regression Potential] Medium, use polling methond may have higher cpu usage. To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1930645/+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
