** Description changed: + SRU Justification + + Impact: CONFIG_NETWORK_PHY_TIMESTAMPING is disabled, preventing PTP time + synchronization using the DP83640 PHYTER. + + Fix: Enable this option and set CONFIG_DP83640_PHY=m to enable the + DP83640 PHYTER driver. + + Regression Potential: The kconfig help text warns of adding overhead to + network tx and rx, but our analysis finds this to be negligible (see + comment #6). Beyond this we are enabling a new driver which does little + unless timestamping is explicitly activated, so regressions are not + expected. + + --- + Hi folks, is there a reason we do not enable CONFIG_NETWORK_PHY_TIMESTAMPING ? I'm not sure of the tradeoffs but I think this config option is required for PTP time syncronization which would be useful in telco and financial (and OCD :)) environments.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1785816 Title: Consider enabling CONFIG_NETWORK_PHY_TIMESTAMPING Status in linux package in Ubuntu: Fix Committed Status in linux source package in Bionic: In Progress Bug description: SRU Justification Impact: CONFIG_NETWORK_PHY_TIMESTAMPING is disabled, preventing PTP time synchronization using the DP83640 PHYTER. Fix: Enable this option and set CONFIG_DP83640_PHY=m to enable the DP83640 PHYTER driver. Regression Potential: The kconfig help text warns of adding overhead to network tx and rx, but our analysis finds this to be negligible (see comment #6). Beyond this we are enabling a new driver which does little unless timestamping is explicitly activated, so regressions are not expected. --- Hi folks, is there a reason we do not enable CONFIG_NETWORK_PHY_TIMESTAMPING ? I'm not sure of the tradeoffs but I think this config option is required for PTP time syncronization which would be useful in telco and financial (and OCD :)) environments. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1785816/+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
